CN102905819B - Take instrument and manufacture method thereof - Google Patents
Take instrument and manufacture method thereof Download PDFInfo
- Publication number
- CN102905819B CN102905819B CN201180012678.6A CN201180012678A CN102905819B CN 102905819 B CN102905819 B CN 102905819B CN 201180012678 A CN201180012678 A CN 201180012678A CN 102905819 B CN102905819 B CN 102905819B
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- China
- Prior art keywords
- shank
- hole
- instrument
- insert
- supporter
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 25
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 110
- 239000010959 steel Substances 0.000 claims abstract description 110
- 238000003780 insertion Methods 0.000 claims abstract description 81
- 230000037431 insertion Effects 0.000 claims abstract description 81
- 239000000463 material Substances 0.000 claims description 54
- 229910003460 diamond Inorganic materials 0.000 claims description 35
- 239000010432 diamond Substances 0.000 claims description 35
- 230000015572 biosynthetic process Effects 0.000 claims description 13
- 238000010276 construction Methods 0.000 claims description 12
- 238000003786 synthesis reaction Methods 0.000 claims description 12
- 230000003068 static effect Effects 0.000 claims description 11
- 230000004323 axial length Effects 0.000 claims description 5
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 2
- 229940072033 potash Drugs 0.000 claims description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 2
- 235000015320 potassium carbonate Nutrition 0.000 claims description 2
- 238000000354 decomposition reaction Methods 0.000 claims 1
- 230000009191 jumping Effects 0.000 description 17
- 239000013078 crystal Substances 0.000 description 16
- 239000011159 matrix material Substances 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- 229910010271 silicon carbide Inorganic materials 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 239000003245 coal Substances 0.000 description 5
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 4
- 238000005476 soldering Methods 0.000 description 4
- 229910052582 BN Inorganic materials 0.000 description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 3
- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical compound C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 3
- 229910001573 adamantine Inorganic materials 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000011295 pitch Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/58—Chisel-type inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/19—Means for fixing picks or holders
- E21C35/193—Means for fixing picks or holders using bolts as main fixing elements
- E21C35/1933—Means for fixing picks or holders using bolts as main fixing elements the picks having a cylindrical shank
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
Abstract
Take instrument (100) and comprise insert (110) and the steel fixator (120) for insert (110), described insert (110) comprises the hard tip (112) being connected to hard carbide supporter (114), and described hard carbide supporter (114) has insertion shank (118); Described steel fixator (120) comprises the axle (122) for being connected to tool holder (not shown) and is equipped with porose (126), and this hole (126) are configured for and hold described insertion shank (118); The volume of described hard carbide supporter (114) is at least about 6cm
3.
Description
Technical field
Embodiments of the invention relate to and generally take instrument and manufacture method thereof, described in take instrument and comprise hard tip, it is especially but do not decompose hard or abrasion body, such as rock, pitch, coal or concrete uniquely.
Background technology
Take instrument can be used for cracked, drill or decompose such as rock, pitch, coal or concrete structure or main body, and may be used for such as digging up mine, in the application of building and road rehabilitation.Such as, in road rehabilitation operation, instrument can be taken to be arranged on multiple on rotating cylinder and to smash road asphalt when rotating cylinder rotates.Similar approach can be used in such as coal mining to smash rock stratum.Some takes instrument can comprise the active tip comprising diamond synthesis material, and compared with the active tip formed by hard tungsten carbide material, this active tip has better abrasion resistance properties.But, compared with hard carbide material, synthesis and natural diamond often more frangible and there is lower Resisting fractre ability, this often reduces it and is taking the potentially useful in operation.Have need to provide a kind of have take instrument compared with long service live.
Publication number is the instrument U.S. patent applications disclosing a kind of high impact-resistant of 2008/0035383, it has the superhard material be attached on cemented metal carbide matrix, described cemented metal carbide matrix is incorporated on the front end of cemented metal carbide part, this cemented metal carbide part has the shank being formed in bottom, and described shank is press-fit in the hole of steel fixator.Steel fixator be rotatably fixed to be suitable for around axle rotate cylinder on.
Summary of the invention
From first aspect, the invention provides a kind of comprise the insert (also referred to as taking insert) be arranged on steel fixator take instrument (taking instrument also referred to as superhard), described insert comprises the hard tip be connected on hard carbide supporter end, and described supporter comprises insertion shank (also referred to as shank); Described steel fixator has the hole being configured to hold described insertion shank, and comprises the axle being configured to be installed to by steel fixator on tool holder, such as, take driving arrangement; The volume of hard carbide supporter is at least 6cm
3, be at least 10cm
3or be at least 15cm
3.Described insertion shank can shrink-fit in hole.On the other hand, the invention provides the external member for originally taking instrument, described external member is in non-assembling or part confined state.
From second aspect, the invention provides a kind of method that manufacture takes instrument, described method comprises: provide insert and the steel fixator for insert, described insert comprises the hard tip be connected on hard carbide supporter, and hard carbide supporter has insertion shank; Described steel fixator comprises the axle for being connected to tool holder, and is equipped with the hole holding described insertion shank; It is at least 15cm that described insertion shank has
3volume; And by insertion shank shrink-fit in the hole of described steel fixator.
From the third aspect, the invention provides a kind of method that dismounting takes instrument, described method comprises: heat described steel fixator thus expanded bore, and from described hole, regain described insertion shank.
Accompanying drawing explanation
Hereinafter, the nonrestrictive exemplary arrangement illustrating this disclosure is described with reference to the drawings, wherein:
Figure 1A is the partly cut-away's schematic side view taking instrument example;
Figure 1B is the schematic side view taking insert that the example shown in Figure 1A takes instrument;
Fig. 1 C is the partial cut-away perspective view that the example shown in Figure 1A takes the steel fixator of instrument;
Fig. 2 is the partly cut-away's schematic side view taking instrument example;
Fig. 3 is the partly cut-away's schematic side view taking instrument example;
Fig. 4 is the partly cut-away's schematic side view taking instrument example, and wherein, dimensional units is millimeter;
Fig. 5 is the partly cut-away's schematic side view taking instrument example, and wherein, dimensional units is millimeter;
Fig. 6 is the partly cut-away's schematic side view taking instrument example, and wherein, dimensional units is millimeter;
Fig. 7 is the longitudinal cross-section schematic diagram that any one example shown in the longitudinal cross-section schematic diagram of hard tip example and Figure 1A to Fig. 6 takes the part supporter of instrument;
Fig. 8 is the schematic side view that any one example shown in the schematic side view of hard tip example and Figure 1A to Fig. 6 takes the part supporter of instrument, and wherein dimensional units is millimeter and angular unit degree of being;
Fig. 9 is the partly cut-away's schematic side view taking instrument example be installed on stake body, wherein, only show the part taking instrument;
Figure 10 is the schematic side view taking instrument example for being different from the support shown in Fig. 9;
Figure 11 is the partly cut-away's schematic side view taking instrument example, and wherein a part for steel fixator is in state of wear.
In all of the figs, identical reference number relates to identical general features.
Detailed description of the invention
As used herein, " superhard " means the Vickers hardness of at least 25GPa, and sintered carbide tools, insert or assembly mean the instrument, insert or the assembly that comprise superhard material.
Synthesis and natural diamond, polycrystalline diamond (PCD), cubic boron nitride (cBN) and polycrystal cubic boron nitride (PCBN) material are the examples of superhard material.As used herein, diamond synthesis is also referred to as diamond, and it is Manufactured diamond.As used herein, polycrystalline diamond (PCD) material comprises a large amount of diamond crystals (aggregation block of multiple diamond crystals), the major part of polycrystalline diamond each other directly intergranular combine, and wherein diamond content be material at least about 80%(volume ratio).Gap between diamond crystals is filled with the adhesive material comprised for the synthesis of adamantine catalyst material at least partly, or this gap is in fact empty.As used herein, the growth of diamond crystals can be promoted for the synthesis of adamantine catalyst material under making synthesis or natural diamond be in the temperature and pressure of thermodynamic stable or promote that the direct intergranular of synthesis or natural diamond crystal grain grows.Example for adamantine catalyst material is Fe, Ni, Co and Mn and some alloy comprising these metals.The main body comprising PCD material can comprise at least one region, and catalyst material is removed from gap in this region, thus between diamond crystals leaving gap room.As used herein, PCBN material comprises dispersion cubic boron nitride in the base (cBN) crystal grain, and described matrix comprises metal or ceramic material.
Other examples of superhard material comprise some composite, this composite comprises the diamond or cBN crystal grain that are combined by matrix, described matrix comprises ceramic material, such as carborundum (SiC), or described matrix comprises hard carbide material, such as in conjunction with Co WC material (such as, as 5,453,105 or 6, described in the United States Patent (USP) of 919,040).Such as, some diamond in conjunction with SiC can comprise the diamond crystals that percent by volume is at least about 30, and described diamond crystals is dispersed in SiC matrix (it can comprise the Si of a small amount of non-SiC form).Be 7,008 in the patent No., 672,6,709,747,6,179,886,6, the United States Patent (USP) of 447,852 and international publication number are the example describing the diamond in conjunction with SiC in the international application of WO2009/013713.
With reference now to Figure 1A to Fig. 6, the exemplary arrangement taking instrument for decomposing duromer or abrasion body or structure is described.
The example taking instrument 100 comprises insert 110 and the steel fixator 120 for this insert 110.Insert 110 comprises the hard tip 112 be connected on hard carbide supporter 114, and this hard carbide supporter 114 comprises insertion shank 118.In these examples, insert shank 118 normally columniform and there is average diameter D, each hard tip 112 comprises each PCD structure 111 be attached on hard carbide matrix 113, hard carbide matrix 113 is connected on each supporter 114 by brazing material at each interface 115 place, and supporter 114 has frusto-conical portions 116 usually, hard tip 112 is soldered on this frusto-conical portions 116.Steel fixator 120 comprises for being connected to the axle 122 taken in cylinder unit (not shown), and hole 126 be configured to for insertion shank 118 shrink-fit.Steel fixator 120 can be equipped with respective insert receiving member 124, and hole 126 is formed in receiving member 124.
Insert shank 118 be fixed in hole 126 at least partially by shrink-fit.As used herein, shrink-fit is the interference fit that a kind of relative size by least one assembly changes between assembly that (shape also can change a little) obtain.Shrink-fit is usually by heating before assembly or cooling an assembly and make it return to room temperature and obtain after assembling.Shrink-fit is understood to contrast with being pressed into coordinate to be formed, and wherein, press-in coordinates and refers to and to be firmly pressed into by assembly in hole in another assembly or recess, and it can produce a large amount of friction stree between the components.
Shrink-fit may cause the region of the steel fixator 120 being adjacent to hole 126 to be in the static state of circumferential tension stress.In some examples taking instrument, the region be adjacent in the steel fixator in hole is at least about in 300MPa or the state at least about circumference (or hoop) the static stretch stress of 350MPa, and take in instrument at some, circumferential static stretch stress is maximum can be reached about 450MPa or reach about 500MPa.As used herein, the static stress state of instrument or element refers to the stress state of instrument or element under static conditions, such as, can there is this state when not using instrument or element.
Take in instrument in some examples, the part 119 comprising frusto-conical portions 116 of supporter 114 can be given prominence to from steel fixator 120 and extend to the aperture 128 in hole 126.In some instances, the diameter along the whole length of ledge of ledge 119 can be greater than about 5% of the average diameter D in hole 126 at the most, or is substantially not more than this average diameter.In the example that Figure 1A to Fig. 6 explains, the diameter of ledge 119 is no more than the diameter in hole 126 substantially.
In one embodiment, jumping through rings encases the ledge of hard carbide supporter at least partially, and in one embodiment, jumping through rings can shrink-fit on this ledge.In one embodiment, jumping through rings has the hardness lower than hard carbide and abrasion resistance properties, and in one embodiment, jumping through rings comprises steel.In one example, jumping through rings is attached on steel fixator by brazing mode.Jumping through rings can be hard carbide supporter and provides support or protect.
Take instrument modification with reference to the example shown in figure 2 and Fig. 4, jumping through rings 130 encases a part for the ledge 119 of supportive body 114.Jumping through rings 130 can encase ledge 119 at least partially, and in one embodiment, jumping through rings 130 can shrink-fit on this ledge.Jumping through rings 130 can have the hardness lower than hard carbide and abrasion resistance properties, and can comprise steel.In one embodiment, jumping through rings 130 is attached on steel fixator 120 by the mode of soldering.Jumping through rings 130 can be hard carbide supporter 114 and provides support or protect.Jumping through rings 130 can have various shape, such as general taper or generally circular, and jumping through rings can be almost symmetry or asymmetrical.By anti-wear stiff dough (not shown), such as, comprise layer or the sleeve pipe of tungsten carbide, the outer surface of jumping through rings 130 can be protected at least partially.Especially; by antiwear device (not shown); at least partially 127 of the outer surface of the steel fixator 120 adjacent with the aperture 128 in hole 126 can be protected, such as, can protect the surf zone upwards extending the insert receiving member 124 reaching 20mm from aperture 127.The example of this mode can be layer or the sleeve pipe of the superhard material crystal grain comprising tungsten carbide and/or such as diamond or cBN.In one embodiment, jumping through rings 130 can have protection stiff dough, and it is mainly arranged on or is only arranged on and in use exposes thus larger side of wearing and tearing.
With reference to figure 3, by the mode of shrink-fit, the major part inserting shank 118 is fixed in the hole 126 of steel fixator 120.In this illustration, insert receiving member 124 is equipped with base 129, and the insertion shank 118 of supporter 114 can prop up this base and locate.Base 129 can be equipped with through hole 1291, takes out insert 112 for being convenient to or the end of inserting shank 118 is soldered to base 129.Such as, the through hole 1291 of base 129 can have at least about 0.6cm and the diameter S of about 2cm at the most.Insert receiving member 124 can have external diameter W, and it can be about 4.8cm.Usually, the diameter D of the insertion shank 118 of supporter 114 is larger, just needs the wall portion of the insert receiving member 124 defining hole 126 thinner, because the external dimensions of steel fixator 120 is by taking the design of equipment (not shown) or taking the restriction of operation requirements.Such as, usually, the wall portion of insert receiving member is thicker, takes instrument firmer, but in return, the energy needed for operation and the consumption of steel may be higher.
In the example shown by Figure 1A, Fig. 2 and Fig. 4, hole 126 can extend through fixator 120, thus provides the through hole with a pair relative open end (or aperture) 128.In these examples, that inserts shank 118 can extend substantially through insert receiving member 124 at least partially.
In some examples taking instrument, the ratio between the volume of hard carbide supporter and the volume of superhard construction is at least about 30, be at least about 40 or be at least about 50.In certain embodiments, the ratio between the volume of hard carbide supporter and the volume of superhard construction is about 300 at the most, be about 200 or be about 150 at the most at the most.In certain embodiments, the volume of superhard construction is at least about 200mm
3or at least about 300mm
3.In certain embodiments, the volume of superhard construction is about 500mm at the most
3or be about 400mm at the most
3.
In some modification taking fixator, the length in hole at least equals its diameter.In one example, the diameter inserting shank and hole can be about 2.5cm, and the length of the insertion portion of hole and insertion shank can be about 6cm; And therefore, the volume of the insertion portion of hole and insertion shank can be about 29cm
3, and the inner peripheral surface in hole and the contact area inserted between shank are about 47cm
2.In another example, the diameter inserting shank and hole can be about 2cm, and the length of the insertion portion of hole and insertion shank can be about 8.3cm; And therefore, the volume of the insertion portion of hole and insertion shank can be about 26cm
3, and the inner peripheral surface in hole and the contact area inserted between shank are about 52cm
2.In another embodiment, the diameter inserting shank and hole can be about 3.5cm, and the length of the insertion portion of hole and insertion shank can be about 6.9cm; And therefore, the volume of the insertion portion of hole and insertion shank can be about 66cm
3, and the inner peripheral surface in hole and the contact area inserted between shank are about 76cm
2.
In some examples taking instrument, inserting shank can not be substantially cylindrical, and can demonstrate various arbitrary shape when observing from cross section.Such as, inserting shank can be General Elliptic shape, avette, wedge shape, square, rectangle, polygons or semicircle; Or the shape of cross section inserting shank can change along its length.
In some instances, shank can have the form of substantially cylindrical and can have at least about 15mm, at least about 20mm, diameter at least about 25mm or even at least 30mm.In certain embodiments, shank has the diameter of about 20mm, at the most about 25mm, at the most about 30mm, at the most about 35mm at the most or about 40mm even at the most.In certain embodiments, the diameter of shank is less than about 5mm along the change of its whole length, or its diameter is substantially constant along its length.
Form below summarises and can combine with the particular example taking the approx. dimension used together with instrument variant disclosed herein.These sizes relate to hole length and insert the length of insertion portion of shank, the average diameter of insertion portion of hole and insertion shank, the minimum volume in hole and insert the volume of insertion portion of shank and the circumferential inner wall in hole and insert shank insertion portion correspondence surface between contact area.
In certain embodiments, supporter comprises and has about 17MPa.m at the most
1/2, about 13MPa.m at the most
1/2, about 11MPa.m at the most
1/2or about 10MPa.m even at the most
1/2the hard carbide of fracture toughness.In certain embodiments, supporter comprises and having at least about 8MPa.m
1/2or at least about 9MPa.m
1/2the hard carbide material of fracture toughness.In certain embodiments, supporter comprises and having at least about 2,100MPa, at least about 2,300MPa, at least about 2,700MPa or even at least about the hard carbide material of the cross-breaking strength of 3,000MPa.
In certain embodiments, supporter comprises hard carbide material, and this material comprises and has about 8 microns or the metal carbides crystal grain of average-size of about 3 microns at the most at the most.In one embodiment, supporter comprises hard carbide material, and this material comprises the metal carbides crystal grain had at least about the average-size of 0.1 micron.
In certain embodiments, supporter comprises hard carbide material, this material comprises the metal binder material of about 13% percentage by weight, at the most about 10% percentage by weight, at the most about 7% percentage by weight, at the most about 6% percentage by weight at the most or about 3% percentage by weight even at the most, such as cobalt (Co).In certain embodiments, supporter comprises hard carbide material, and this material comprises at least about 1% percentage by weight, at least about 3% percentage by weight or the metal-to-metal adhesive at least about 6% percentage by weight.
In some instances, supporter can primarily of or be made up of hard carbide material.
In some examples taking instrument, the shrink-fit of assembly is reversible, and steel fixator and/or insert shank and can be disassembled and reuse, This effectively reduces the cost that takes instrument and allow the expansion of steel fixator to use.This is obtained by following method, that is: the steel fixator near bottoming hole, thus impels steel fixator to insert shank expansion relative to hard carbide, allows to remove from hole to insert shank.
The invention provides a kind of method that manufacture takes instrument, the method comprises: provide and take insert, and described insert comprises the hard tip be connected on hard carbide supporter end, and described supporter comprises shank (insertion shank); There is provided steel fixator, described steel fixator has the hole being configured to hold described shank, and comprises the axle being configured to be installed to by steel fixator on tool holder; By described shank shrink-fit in the hole of steel fixator.By the temperature being heated to about 350 degrees Celsius at least partially of the steel fixator by comprising hole, shank is inserted heated fixator hole in and allow the hole of steel fixator cool and shrink, by described insertion shank shrink-fit in the hole of steel fixator, shank can be inserted with compress mode clamping thus.Comprise in the example of base at steel fixator, insert shank and can be inserted in hole from start to finish, to make the end be inserted near base.
The gap of inserting between shank and the hole of fixator is the difference in size between them, and it can be expressed as size percentage.Such as, have in the embodiment of general circular cross section in insertion shank (and hole), this gap can be expressed as the diameter difference represented with diameter percentage.Expect at least to select to insert the size between shank and hole according to the diameter inserting shank, and expect that this size is at least about being 0.002% of insertion shank diameter.In one example, the diameter inserting shank is about 2.5cm, and the gap of inserting between shank and hole is insert shank diameter about 0.08%.The gap of inserting between shank and hole can be insert shank diameter at the most about 0.3%.If gap is too large, so when by steel fixator shrink-fit to insertion shank time, can exceed the elastic limit of fixator Steel material, this can cause some elastic deformations of the steel being adjacent to hole.If gap is large not, so in use shrink-fit may be not enough to make insert to be fixed device firm grip.
In some forms of described method, the accurate dimension inserting shank and hole can be selected, make will insert shank shrink-fit to Kong Zhonghou, the region being adjacent to hole in steel fixator is at least about 300MPa or at least about under circumference (or hoop) the static tensile stress of 350MPa.In certain embodiments, under the region being adjacent to hole in steel fixator is in circumference (or hoop) the static tensile stress of about 450MPa at the most or about 500MPa at the most.
In a non-limiting example, the disclosed instrument that takes comprises hard tip, described in the U.S. Patent application at publication number 2009/0051211,2010/0065338,2010/0065339 or 2010/0071964.With reference to figure 7, comprise hard tip 112 for the insert example taking device embodiment disclosed herein, this tip 112 comprises the superhard construction 111 being attached to general type on superhard carbide substrate 113, cap.Hard tip 112 is connected on the frusto-conical portions 116 of supporter 114.The major part of superhard construction 111 has spherical blunted cone profile, it has rounding summit 1111, this summit has the radius of curvature in fore-and-aft plane, and is being parallel to the cone angle κ between the axis of longitudinal axis AL and the conical section 1112 of superhard construction 111 outer surface.Superhard construction 111 comprises nasal region 1113 and skirt region 1114, and skirt region is dangled in longitudinal direction and side direction, away from nasal region 1113.In some distortion of example, the minimum longitudinal thickness of skirt region 1114 can be at least about 1.3mm or at least about 1.5mm.In some distortion of example, the longitudinal thickness of the superhard cap 111 at summit 1111 place is at least about 4mm or at least about 5mm, and about 7mm or at the most about 6mm at the most.In a distortion of example, the longitudinal thickness of the superhard construction 111 at summit place 1111 is in the scope from about 5.5mm to 6mm.In some forms of example, the radius of curvature on rounding summit 1111 is at least about 2mm and at the most about 3mm.In certain embodiments, cone angle κ is 80 degree or 70 degree at the most at the most.In some distortion of example, cone angle κ is at least about 45 degree or at least about 50 degree.
With reference to figure 8, comprise hard tip 112 for the disclosed insert example taking the embodiment of instrument, this tip 112 comprises the superhard construction 111 be attached on hard carbide matrix 113.Hard tip 112 is connected on the frusto-conical portions 116 of supporter 114.The radius of curvature R of spherical blunted cone nose 1111 is about 2.25mm, and cone angle κ is about 42 degree.
With reference to figure 9, base block 200(stake body is connected to by interlocking fasteners mechanism 210) for the disclosed part taking the example of the steel fixator 120 of instrument, wherein, the axle 122 of steel fixator 120 is locked in the hole that is formed in stake body 200.The part that example takes the insertion shank 118 of instrument is also illustrated.Axle 122 can be detachably connected on base block 200, and this base block welds or is connected on cylinder.Base block 200 and fixator 120, more specifically, can be configured to allow between steel fixator 120 and base block dismountable cooperatively interacts for axle 122.Axle 122 can be configured to non-rotatably cooperatively interact with base block, and is suitable for using together with the tool holder disclosed in the Deutsche Bundespatent of No. DE102004057302A1 with such as No. DE10161713B4.Tool holder, such as base block, can be soldered on the assembly of driving arrangement, such as cylinder, takes instrument for driving is superhard.Figure 10 shows the side view taking instrument 100 for the tool holder different from the example shown in Fig. 9, and the axle 122 of steel fixator 120 is configured by different way.Take instrument 100 and comprise insert 110, it has the hard tip 112 be connected in a part 116 for supporter.
The invention provides a kind of method, the method is for taking instrument be connected to tool holder by superhard, this tool holder is incorporated on the assembly of driving arrangement, described method comprises: will take insert and be connected to steel fixator, thus formation takes instrument, described steel fixator comprises axle, and this axle is configured to operationally be connected on tool holder by steel fixator, this tool holder comprises engagement tool, and this engagement tool is configured to the axle holding steel fixator; And, then take instrument be connected to superhard on tool holder.In an embodiment of described method, tool holder is soldered on the assembly of driving arrangement, such as cylinder, takes instrument for driving is superhard.
In operation, take instrument driving arrangement thereon by being provided with, abutting against structure to be decomposed and driving forwards this and take instrument, and its hard tip is in front end of advancing.Such as, multiplely take instrument and can be arranged on cylinder and decompose for pitch, also may be used for pulverizing road thus pave again.Described cylinder to be connected on vehicle and to activated rotation.When cylinder enters near road surface, take instrument repeated impacts road when cylinder rotates, and front end hard tip pulverizes pitch thus.The coal seam in similar approach pulverizing colliery can be used.
With reference to Figure 11, display example in Figure 5 takes instrument and is schematically in state of wear, wherein the part 1201 of steel fixator 120 is in use worn, thus exposes the part on the surface of inserting axle 118, and this exposed portion is the part adjacent with part 1201.
Although display example in fig. 11 takes under instrument is in state of wear, some examples take instrument can be equipped with Cut-away section 1201 before the use.In the configuration, insert shank 118 only partly by along insert shank 118 length L axial location R scope hole 126 around (namely, in the scope R of axial location, insert shank 118 not by steel fixator 120 Perfect Ring around or surround).
When be designed for high wearing and tearing operation take instrument time, such as, for decomposing pitch, coal or sylvite, expect the balance between in use implementation tool cost and its wear-resistant and resistance to fracture.Superhard material, such as diamond synthesis is tending towards more wear-resistant, but also than hard carbide material costly; And compared with Steel material, but it is tending towards costly more wear-resistant.Method can carry out a content for diamond and the hard carbide material comprised in minimization tool according to its relative cost, and is configured the assembly comprising these materials, thus obtains desirable life tools.
In use, hard carbide supporter have in the direction of movement be arranged on PCD tip below at least about 6cm
3, at least about 10cm
3or at least about 15cm
3larger volume, and extend in steel fixator, it seems the working life of instrument to be improved to surprising degree, and this likely adjusts the extra cost of carbide relatively deeply.
Although do not wish the constraint being subject to particular theory, when inserting PCD tip when contending with pulverized structure, by being tending towards resisting most advanced and sophisticated distortion or bending, carbide inserts the high density of shank and relative high quality and high rigidity thereof can provide for PCD tip the support fully improved.Carbide inserts shank and can be regarded as forming bayonet fittings, and this structure extends in steel fixator relatively deeply.Elongated carbide shank also can be used as strengthening thorn portion, and it to extend in steel fixator and makes it firmer.
Have been found that there is hard tip take the working life that instrument presents prolongation in pitch operation splitting, wherein, this instrument that takes with hard tip combines relatively large insertion shank and is connected with the shrink-fit inserting shank in steel fixator.If the volume inserting the insertion portion of shank is less than about 6cm
3, be less than about 15cm
3or be even less than about 15cm
3, hard tip is not fully supported so in operation; And if the interface zone inserted between shank and hole is less than about 20cm
2, then carbide support main body can not be clamped fully securely by steel fixator, and wherein this carbide support shrink-fit is in steel fixator.If the diameter inserting shank is less than about 2cm, so it can not provide enough supports and robustness for carrying out in operation harsh especially cracked instrument, and/or steel fixator may excessive wear.If the length of supporter is less than about 4cm, so it can not provide sufficient support for steel fixator and/or PCD tip, may rupture prematurely in PCD tip.
Take herein in instrument, volume and the contact area between the two of inserting shank and hole are relative large, have advantage by insertions shank shrink-fit to steel fixator relative to being pressed into cooperation.Compared with being press-fit in hole with by relatively large insertion shank, need quite little power by relatively large insertion shank shrink-fit to hole.This makes it possible to be clamped in enough securely by insert in the hole of steel fixator, and substantially beyond the elastic limit of Steel material, can not thus reduce the plastic deformation of steel fixator.But, do not wish the constraint being subject to particular theory, this less distortion and axial stress of region being adjacent to hole of steel fixator being born produced by the pressure inserted between shank and hole surface and frictional force.Insert the residual stress component that shank also can have reduction, in use, it can produce larger resistance to fracture.In return, shrink-fit may need equipment more complicated a little and step.
Shrink-fit can allow to reduce dependence insert being connected to the soldering on steel fixator.When hard tip comprises synthesis or natural diamond, such as polycrystalline diamond, this is particularly useful, because soldering needs to use high-temperature (diamond, particularly the diamond of PCD form is tending towards having relatively low heat endurance and is tending towards converting graphite to when high temperature), thus make tip have the thermal decomposition of reduction.In addition, need to implement soldering in special stove and extraordinary atmosphere, and shrink-fit does not need these.
The invention provides example and take instrument.Propose terms hereinafter and take further describing of instrument as to disclosed.
1. superhardly take instrument (for simplicity, also referred to as taking instrument) and comprise insert and the steel fixator for insert, described insert comprises the hard tip be connected on hard carbide supporter, and this hard carbide supporter has insertion shank; Described steel fixator comprises the axle for being connected to tool holder, and steel fixator is equipped with porose, and described hole is configured to for holding insertion shank; The volume of hard carbide supporter is at least 6cm
3, at least 10cm
3or at least 15cm
3.
2. take instrument and comprise insert and the steel fixator for insert, described insert comprises the hard tip be connected on hard carbide supporter, and this hard carbide supporter has insertion shank; Described steel fixator comprises the axle for being connected to tool holder, and steel fixator is equipped with porose, and described hole is configured to for holding insertion shank; The insertion portion inserting shank is fixed in hole; Insertion portion has axial length and average diameter; Axial length is not less than described average diameter.
3. take instrument as clause 2, wherein, the axial length of insertion portion is at least about 4cm, and about 8.5cm at the most.
4. take instrument as clause 2 or clause 3, wherein, the average diameter of insertion portion is at least about 2cm and about 3.5cm at the most.
5. take instrument and comprise insert and the steel fixator for insert, described insert comprises the hard tip be connected on hard carbide supporter, and described hard carbide supporter has insertion shank; Described steel fixator comprises the axle for being connected to tool holder, and steel fixator comprises insert receiving member, and this insert receiving member is equipped with porose, and described hole is configured to for holding insertion shank; Insert the insertion portion of shank to be fixed in hole and the surf zone being adjacent to hole; The size of the volume of insertion portion is greater than by the size of the surf zone adjoined.
6. taking instrument as clause 5, wherein, is at least about 20cm by the size of the surf zone adjoined
2, and the volume of insertion portion is at least about 15cm
3.
7. take instrument as clause arbitrary in aforesaid clause, wherein, insert shank shrink-fit in hole.
8. superhardly take instrument (for simplicity, also referred to as " taking instrument ") comprise being installed to steel fixator takes insert, describedly take insert (for simplicity, also referred to as " insert ") be included in the hard tip be connected on hard carbide supporter end, described supporter comprises shank (also referred to as " insertion shank "); Steel fixer is porose, and comprises axle, and this hole is configured to hold inserts shank, and this axle is configured to fixator to be installed on tool holder; Described shank shrink-fit is in the hole of steel fixator.
9. take instrument as clause arbitrary in aforesaid clause, wherein, insert shank (shank) and there is at least 15cm
3volume.
10. take instrument as the arbitrary clause in aforementioned clause, wherein, the surf zone inserting shank is adjacent to corresponding inner circumferential (side) surf zone in hole, and described surf zone is at least about 20cm
2.
11. take instrument as arbitrary clause in aforementioned clause, wherein, insert the diameter (or average diameter) that shank has at least 1.5cm or at least 2cm and 4.0cm or 3.5cm at the most at the most.
12. take instrument as arbitrary clause in aforementioned clause, and wherein, the length inserting shank and hole is respectively at least about 4cm.
13. take instrument as arbitrary clause in aforementioned clause, and wherein, the volume of hard carbide supporter and the ratio of the volume of hard tip are at least 30 and are 300 at the most, and the volume of hard tip is at least 200mm
3and be 500mm at the most
3.
14. take instrument as arbitrary clause in aforementioned clause, and wherein, the volume of superhard construction is at least 0.2cm
3.
15. take instrument as arbitrary clause in aforementioned clause, and wherein, what insert shank is cylindrical at least partially substantially.
16. take instrument as arbitrary clause in aforementioned clause, and wherein, described hole has the length at least equaling its diameter.
17. take instrument as arbitrary clause in aforementioned clause, wherein, the gap of inserting between shank and hole be insert shank diameter at least about 0.002%, and be insert shank diameter at the most about 0.3%.
18. take instrument as arbitrary clause in aforementioned clause, and wherein, the region being adjacent to hole of steel fixator is at least about 300MPa and under circumference (or hoop) the static stretch stress state of about 500MPa at the most.
19. take instrument as arbitrary clause in aforementioned clause, and wherein, the diameter inserting shank is less than about 5mm along the change of its whole length or diameter, and is substantially constant along its whole length.
20. take instrument as arbitrary clause in aforementioned clause, wherein, the part inserting shank only part by the hole of steel fixator around (along the scope place of axial location of length inserting axle).
21. take instrument as arbitrary clause in aforementioned clause, and wherein, steel fixator is equipped with the base of the end for supporting hard carbide supporter.The passage arranged by running through or be adjacent to base or through hole, UNICOM outside described Kong Keyu steel fixator.
22. take instrument as arbitrary clause in aforementioned clause, and wherein, described hole extends through fixator, thus provides the through hole with pair of openings end.
23. take instrument as clause arbitrary in clause 1 to 21, and wherein, at one end place of portion, described hole is by base closed.
24. take instrument as arbitrary clause in aforementioned clause, and wherein, a part for hard carbide supporter is given prominence to from steel fixator and extends to the aperture in hole.
25. take instrument as clause 24, and wherein, the ledge of hard carbide supporter is along the diameter in the aperture of the diameter than hole of its whole length to much 5%, and described ledge is outstanding from this hole.
26. take instrument as clause 24, and it comprises and to encase or around the jumping through rings at least partially of ledge.
27. take instrument as arbitrary clause in aforementioned clause, wherein, insert shank to have at least about 15mm, at least about 20mm, diameter (in certain embodiments, inserting the diameter that shank can have about 20mm, at the most about 25mm, at the most about 30mm, at the most about 35mm at the most or about 40mm even at the most) at least about 25mm or even at least 30mm.
28. take instrument as arbitrary clause in aforementioned clause, and wherein, hard tip comprises natural or diamond synthesis material or cBN material.
29. take instrument as arbitrary clause in aforementioned clause, and wherein, hard tip comprises the polycrystalline diamond structure be attached on hard carbide matrix.
30. take instrument as arbitrary clause in aforementioned clause, and wherein, hard tip comprises the diamond crystals being dispersed in and comprising in the matrix of SiC material, or comprises the diamond crystals be dispersed in the matrix comprising hard carbide material.
31. take instrument as arbitrary clause in aforementioned clause, and wherein, hard carbide supporter comprises hard carbide material, and this hard carbide material has at least 8MPam
1/2and 17MPa.m at the most
1/2fracture toughness.
32. take instrument as arbitrary clause in aforementioned clause, and wherein, hard carbide supporter comprises hard carbide material, and this hard carbide material comprises the metal binder material of 13% weight ratio and at least 1% weight ratio at the most.
33. take instrument as arbitrary clause in aforementioned clause, and wherein, supporter comprises superhard material (such as, supporter can comprise be dispersed in diamond in hard carbide matrix or cBN crystal grain).
34. take instrument as arbitrary clause in aforementioned clause, for decomposing pavement or road, or for the exploitation in colliery or potash ore deposit.
35. take instrument as arbitrary clause in aforementioned clause, and wherein, tool holder is soldered maybe can be soldered on the assembly of driving arrangement, such as cylinder, takes instrument for driving is superhard.
36. take instrument as arbitrary clause in aforementioned clause, and wherein, tool holder comprises maybe can be connected to drive unit or can on drive unit.
37. for the manufacture of the method taking instrument of arbitrary clause in such as aforementioned clause, described method comprises: provide insert and the steel fixator for insert, insert comprises the hard tip joined on hard carbide supporter, and this hard carbide supporter has insertion shank; Steel fixator comprises the axle for being connected to tool holder, and steel fixator is equipped with the hole holding and insert shank; Insert shank and there is at least 6cm
3, at least 10cm
3or at least 15cm
3volume; And, shank shrink-fit will be inserted in steel retainer hole.
38. as the method for clause 37, it comprises: select to insert the gap between shank and hole, to make will insert shank shrink-fit to Kong Zhonghou, the region being adjacent to hole in steel fixator is at least about 300MPa and under the circumferential static stretch stress state of about 500MPa at the most, or under being in the basic state lower than the elastic limit of the Steel material be included in steel fixator.
Be described in more detail below the non-limiting example taking instrument.
As shown in Figure 8, hard tip comprises the PCD structure being integrally connected to tungsten carbide (Co-WC) matrix being combined with cobalt, and this hard tip is brazed to supporter.PCD structure has about 382mm
3volume.Supporter is formed by Co-WC, comprises the Co of about 13% weight ratio, and has about 16.3MPa.m
1/2fracture toughness, and the cross-breaking strength of about 2,200MPa (TRS).In another example, supporter is formed by Co-WC, comprises the Co of about 8% weight ratio, and has about 14.6MPa.m
1/2fracture toughness, and the cross-breaking strength of about 2,800MPa (TRS).Supporter comprises columniform insertion shank and frusto conical end part substantially, and PCD tip is brazed to this frusto conical end part.Insertion portion has from about 0.04 micron of Ra to the surface smoothness within the scope of about 0.5 micron of Ra.The diameter inserting shank is 2.5cm, and its length is 6.7cm.
The invention provides a kind of steel fixator, it is formed by 42Cr-Mo4 level steel, and comprises the insert receiving member with hole, and the diameter in hole is about 2.5cm, and its length is about 6.7cm.At the bottom end place in hole, ring-shaped base is set.By the temperature that in atmosphere the insert receiving member of steel fixator is heated to about 350 DEG C, axle is inserted heated fixator hole in and allow insert receiving member to be retracted to insert on shank, insertion shank in the hole of steel fixator, is clamped insertion shank with compress mode by shrink-fit thus.Insert shank to be inserted into from start to finish in hole, to make the end abutment be inserted in ring-shaped base.Therefore, the volume inserting the part be inserted into of shank is about 33cm
3, and the contact area inserted between shank and the circumferential inner wall in hole is about 53cm
2.The gap of inserting between shank and hole is about 0.02mm, and the static circumferential tension stress being adjacent to the region in hole of estimated steel fixator is in from about 300MPa to the scope of about 500MPa.
Tested and taken instrument according to of the present invention in road rehabilitation operation, and wherein, taken instrument and to be installed on cylinder and for decomposing road asphalt.After having decomposed the road at least about 20km, take instrument still in running order.
Be described above the various example embodiment and assembling thereof and method of attachment that take instrument.Skilled person in the art will appreciate that under the spirit and scope not departing from advocated invention, can change these examples and revise.
Claims (13)
1. take instrument, it comprises insert and the steel fixator for described insert, and described insert comprises the hard tip being connected to hard carbide supporter, and described supporter has insertion shank, and described supporter comprises and has 8 to 17MPa.m
1/2the hard carbide material of fracture toughness; Described steel fixator comprises the axle for being non-rotatably connected to tool holder, and described steel fixator is equipped with porose, and described hole is configured to hold described insertion shank; The volume of described hard carbide supporter is at least 15cm
3; The insertion portion shrink-fit of described insertion shank is in described hole; Described insertion portion has the axial length of 4cm to 8.5cm and the diameter of 1.5cm to 4cm.
2. take instrument as claimed in claim 1, wherein, described hard tip comprises and has at least 200mm
3the superhard construction of volume.
3. take instrument as claimed in claim 1, wherein, the ratio of the volume of described hard carbide supporter and the volume of described hard tip is at least 30 and at the most 300, and the volume of described hard tip is at least 200mm
3500mm at the most
3.
4. take instrument as claimed in claim 2, wherein, the surf zone of described insertion shank is adjacent to the respective inside surf zone in described hole, and the surf zone of described insertion shank is at least 20cm
2.
5. take instrument as claimed in claim 1, wherein, the gap between described insertion shank and described hole is at least 0.002% of the diameter of described insertion shank, and is at the most 0.3% of the diameter of described insertion shank.
6. take instrument as claimed in claim 1, wherein, the part of described insertion shank only partly by described steel fixator hole around.
7. take instrument as claimed in claim 1, wherein, described steel fixator is equipped with base, and described base is for supporting the end of described hard carbide supporter.
8. take instrument as claimed in claim 7, wherein, via the passage being adjacent to described base, the outside UNICOM of described hole and steel fixator.
9. take instrument as claimed in claim 1, wherein, described hard tip comprises diamond synthesis material.
10. take instrument as claimed in claim 1, it is for the decomposition of road surface or road, or for the exploitation in colliery or potash ore deposit.
11. manufacture the method taking instrument as claimed in claim 1, and described method comprises:
There is provided insert and the steel fixator for described insert, described insert comprises the hard tip being connected to hard carbide supporter, and described hard carbide supporter has insertion shank; Described supporter comprises and has 8 to 17MPa.m
1/2the hard carbide material of fracture toughness, described steel fixator comprises the axle for being non-rotatably connected to tool holder, and steel fixator is equipped with porose, and described hole is for holding described insertion shank; Described insertion shank has at least 15cm
3volume; The insertion portion of described insertion shank is fixed in described hole; Described insertion portion has the axial length of 4cm to 8.5cm and the diameter of 1.5cm to 4cm; And, by described insertion shank shrink-fit in the hole of described steel fixator.
12. methods as claimed in claim 11, it comprises:
Select to insert the gap between shank and described hole, make by described insertion shank shrink-fit to described hole time, under the state that the region being adjacent to described hole in steel fixator is at least 300MPa and the circumferential static stretch stress of 500MPa at the most.
13. dismountings take the method for instrument as claimed in claim 1, and described method comprises:
Heat described steel fixator, thus expand the described insertion shank of withdrawal in hole described in described Kong Bingcong.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1000869.6 | 2010-01-20 | ||
| GBGB1000869.6A GB201000869D0 (en) | 2010-01-20 | 2010-01-20 | Superhard pick tool and method for making same |
| PCT/EP2011/050616 WO2011089117A2 (en) | 2010-01-20 | 2011-01-18 | Pick tool and method for making same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102905819A CN102905819A (en) | 2013-01-30 |
| CN102905819B true CN102905819B (en) | 2016-02-17 |
Family
ID=42045789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180012678.6A Active CN102905819B (en) | 2010-01-20 | 2011-01-18 | Take instrument and manufacture method thereof |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP2525930B1 (en) |
| JP (2) | JP5946413B2 (en) |
| CN (1) | CN102905819B (en) |
| AU (1) | AU2011208736B2 (en) |
| CA (1) | CA2787541C (en) |
| DK (1) | DK2525930T3 (en) |
| ES (1) | ES2638865T3 (en) |
| GB (1) | GB201000869D0 (en) |
| RU (1) | RU2522246C2 (en) |
| WO (1) | WO2011089117A2 (en) |
| ZA (2) | ZA201205228B (en) |
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| US7669938B2 (en) * | 2006-08-11 | 2010-03-02 | Hall David R | Carbide stem press fit into a steel body of a pick |
| US8136887B2 (en) | 2006-08-11 | 2012-03-20 | Schlumberger Technology Corporation | Non-rotating pick with a pressed in carbide segment |
| US8562702B2 (en) | 2007-07-23 | 2013-10-22 | Element Six Abrasives S.A. | Abrasive compact |
| GB201000869D0 (en) * | 2010-01-20 | 2010-03-10 | Element Six Holding Gmbh | Superhard pick tool and method for making same |
-
2010
- 2010-01-20 GB GBGB1000869.6A patent/GB201000869D0/en not_active Ceased
-
2011
- 2011-01-18 EP EP11701377.1A patent/EP2525930B1/en active Active
- 2011-01-18 DK DK11701377.1T patent/DK2525930T3/en active
- 2011-01-18 AU AU2011208736A patent/AU2011208736B2/en active Active
- 2011-01-18 ES ES11701377.1T patent/ES2638865T3/en active Active
- 2011-01-18 CA CA2787541A patent/CA2787541C/en active Active
- 2011-01-18 JP JP2012549332A patent/JP5946413B2/en active Active
- 2011-01-18 CN CN201180012678.6A patent/CN102905819B/en active Active
- 2011-01-18 RU RU2012135552/02A patent/RU2522246C2/en active
- 2011-01-18 WO PCT/EP2011/050616 patent/WO2011089117A2/en active Application Filing
-
2012
- 2012-07-13 ZA ZA2012/05228A patent/ZA201205228B/en unknown
-
2013
- 2013-07-11 ZA ZA2013/05228A patent/ZA201305228B/en unknown
-
2014
- 2014-10-20 JP JP2014213966A patent/JP2015042837A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5965104A (en) * | 1982-06-08 | 1984-04-13 | ザ・ケ−リング・カンパニ− | Road surface treating machine |
| JPS60210382A (en) * | 1984-04-03 | 1985-10-22 | Sumitomo Electric Ind Ltd | Tool made of composite sintered body and its production |
| JPS62253898A (en) * | 1986-02-28 | 1987-11-05 | デ ビアス インダストリアル ダイアモンド デイビジヨン（プロプライエタリイ）リミテツド | Grinding tool |
| US5150636A (en) * | 1991-06-28 | 1992-09-29 | Loudon Enterprises, Inc. | Rock drill bit and method of making same |
| CN101523014A (en) * | 2006-08-11 | 2009-09-02 | 大卫·R·霍尔 | Thick pointed superhard material |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA201305228B (en) | 2015-05-27 |
| AU2011208736A1 (en) | 2012-08-02 |
| GB201000869D0 (en) | 2010-03-10 |
| AU2011208736B2 (en) | 2014-03-13 |
| EP2525930A2 (en) | 2012-11-28 |
| CA2787541A1 (en) | 2011-07-28 |
| ZA201205228B (en) | 2013-09-25 |
| DK2525930T3 (en) | 2017-08-21 |
| RU2012135552A (en) | 2014-02-27 |
| WO2011089117A2 (en) | 2011-07-28 |
| RU2522246C2 (en) | 2014-07-10 |
| WO2011089117A3 (en) | 2011-10-13 |
| CN102905819A (en) | 2013-01-30 |
| EP2525930B1 (en) | 2017-05-31 |
| ES2638865T3 (en) | 2017-10-24 |
| CA2787541C (en) | 2017-03-28 |
| JP2015042837A (en) | 2015-03-05 |
| JP2013517399A (en) | 2013-05-16 |
| JP5946413B2 (en) | 2016-07-06 |
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