CN101100930A - Surface strengthening steel tooth wheel and manufacturing method thereof - Google Patents
Surface strengthening steel tooth wheel and manufacturing method thereof Download PDFInfo
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- CN101100930A CN101100930A CNA2007100528243A CN200710052824A CN101100930A CN 101100930 A CN101100930 A CN 101100930A CN A2007100528243 A CNA2007100528243 A CN A2007100528243A CN 200710052824 A CN200710052824 A CN 200710052824A CN 101100930 A CN101100930 A CN 101100930A
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Abstract
This is a surface enhanced steel tooth roller bit and its manufactory method. An anti-ware multiplex layer of tungsten carbide and diamond is covered to the steel tooth. The multiplex layer is composed by tungsten carbide granular, single crystal diamond and agglomerated under 1200 deg. C with adhesive. Tungsten carbide granular content is 50-90%, diamond powder is 2-30% and the left is adhesive.
Description
Technical field
The present invention relates to a kind of steel-tooth cone that is used on the steel tooth bit of petroleum geology probing field, be specifically related to surface strengthening steel tooth wheel and preparation method thereof.
Background technology
Steel tooth bit has obtained in the petroleum geology of soft formation is crept into owing to having scraping and the big characteristic of the plane of disruption to use widely.Steel tooth bit mainly is made up of bit leg and steel-tooth cone two large divisions, existing steel tooth bit all is to apply the abrasion resistance that the mode of welding the carbine abrasion-proof layer improves the steel tooth by the steel-tooth cone dental surface usually, but such gear wheel tooth wearing layer anti-wear performance is still more limited.From the situation of the actual use of drilling well, the inefficacy of steel tooth bit mainly is that gear wheel tooth wearing layer wearing and tearing are dropped and caused rock bit to lose efficacy.Though existing both at home and abroad report and the method for using diamond to strengthen gear wheel tooth wearing layer, mostly pooled applications manufacturing pipe welding rod applies the mode of weldering.U.S. Pat 5755299 has been introduced the cated diamond in a kind of surface, and this coating applications of diamond in the rock bit surface peening, the surface reinforcing method of this patent introduction mainly is to adopt the welding of pipe welding rod, plasma spraying and flame-spraying.But this class process is in implementation process, and temperature is not easy control, very easily surpasses 1200 ℃, thereby diamond is produced damage inevitably, causes the infringement of gear wheel diamond wear proof layer and inefficacy and can't realize expected effect.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of surface strengthening steel tooth wheel and preparation method thereof at the deficiency of above-mentioned prior art existence, and this reinforced wear-resistant layer not only bonds firmly, and abrasion resistance is strong, and manufacture craft is reliable and stable.
The present invention for the technical scheme of the steel-tooth cone head that problem adopted of the above-mentioned proposition of solution is: include cone body and the tooth that is laid on the cone body conical surface, its difference is to be coated with a tungsten carbide diamond complex abrasion-proof layer at dental surface, described tungsten carbide diamond complex abrasion-proof layer is by tungsten carbide particle, bortz powder and binding metal form through high temperature melting infiltration sintering below 1200 ℃, and tungsten carbide particle, the constituent content of bortz powder and binding metal is by weight: tungsten carbide particle 50-90%, bortz powder 2-30%, the binding metal surplus.
Press such scheme, the thickness of described tungsten carbide diamond complex abrasion-proof layer is the 1-8 millimeter, is overlying on the tooth top and the flank of steel-tooth cone tooth.
Press such scheme, described tungsten carbide particle granularity is the 20-600 micron; Described bortz powder is a single-crystal diamond, and the granularity of single-crystal diamond is the 90-600 micron; Described single-crystal diamond can be diamond, or natural diamond; Described binding metal is a copper base binding metal, can be the acid bronze alloy that metals such as copper, nickel, manganese, zinc, tin are formed.
Press such scheme, be covered with the carbine abrasion-proof layer at the teeth groove position of steel-tooth cone.Described carbine abrasion-proof layer is formed through high temperature melting infiltration sintering below 1200 ℃ by tungsten carbide particle and binding metal, and the constituent content of tungsten carbide particle and binding metal is by weight: tungsten carbide particle 70-90%, binding metal surplus.
The technical scheme of steel-tooth surface peening layer manufacturing method thereof of the present invention is:
At first, process the outer mold of a graphite;
Smearing through the steel-tooth cone dental surface place after the sandblast by the composite layer to be sintered of bortz powder, tungsten carbide particle and bonding adhesive then, the constituent content that layer bortz powder to be sintered, tungsten carbide particle and bonding adhesive mix is by weight: tungsten carbide particle 50-90%, bortz powder 2-30%, the bonding adhesive surplus;
Outside graphite, put into location steel cylinder in the mold, the steel-tooth cone of smearing is put into the outer mold of graphite, add a certain amount of resin sand in the mold outside again, put into 200-300 ℃ baking oven baking then, get final product after general 1-2 hour.
Outside graphite, add in the mold corresponding to gluing dosage (according to volume) slightly many binding metal and a certain amount of flux, go into the stove melting infiltration sintering, the melting infiltration sintering temperature is between 900-1200 ℃, Deng the binding metal thorough impregnation insulation cooling of coming out of the stove behind the surperficial smear layer, die sinking cleaning again.
Press such scheme, smear at steel-tooth cone teeth groove place by tungsten carbide particle and the composite layer to be sintered of bonding adhesive, the constituent content that layer tungsten carbide particle to be sintered and bonding adhesive mix is by weight: tungsten carbide particle 70-90%, bonding adhesive surplus; Teeth groove at steel-tooth cone forms the carbine abrasion-proof layer thus.
Press such scheme, described bonding adhesive is by glycerine, alkyl acrylic fat, the fluidised form bonding adhesive that diethylene glycol monobutyl ether is formulated, this bonding adhesive is volatilization fully under 500 ℃, bonding adhesive plays the effect of bonding and temporary transient typing, and in the later stage of gear wheel sintering, the shared space of bonding adhesive is filled and substituted by binding metal.
Beneficial effect of the present invention is: 1, the process by melting infiltration sintering is provided with tungsten carbide diamond complex abrasion-proof layer at the dental surface of steel-tooth cone, can make complex abrasion-proof layer secure bond at dental surface, complex abrasion-proof layer and gear wheel steel body are fused into one, effectively improve the anti-wear performance of steel-tooth cone; 2, pass through melting infiltration sintering, can accurately control the temperature of sintering, effectively avoid high temperature to adamantine damage in the composite bed, therefore processing technology and composite bed quality are very stable and reliable, the abrasion resistance of diamond in the complex abrasion-proof layer fully kept, make steel-tooth cone anti-wear performance and further strengthened application life and improved, thereby the actual life of effectively having improved steel tooth bit.
Description of drawings
Fig. 1 is the sintering schematic diagram of one embodiment of the invention.
Fig. 2 is the structural diagrams of steel-tooth cone of the present invention before sintering.
Fig. 3 is a tooth wearing layer structural representation of the present invention.
The specific embodiment
Further specify embodiments of the invention below in conjunction with Figure of description.
Embodiment 1:
Steel-tooth cone comprises cone body 4 and the tooth that is laid on the cone body conical surface, dental surface at steel-tooth cone comprises the tooth top 8 of tooth and the tungsten carbide diamond complex abrasion-proof layer that flank 10 (single face) is covered with 5 millimeters thick, be covered with the carbine abrasion-proof layer of 5 millimeters thick at teeth groove 9 positions of steel-tooth cone, wherein the granularity of tungsten carbide is between 38 microns to 250 microns; Offer arc groove 11 or chamfering at the tooth top of steel-tooth cone tooth and the intersection of flank, can increase the contact area of complex abrasion-proof layer and gear wheel tooth, improve the adhesion of complex abrasion-proof layer and gear wheel steel body.Its process is: the steel-tooth cone and the outer mold 6 of graphite of surface peening treated in processing, put location steel cylinder 7 well in graphite outer embrane tool, be used for locating the position of gear wheel at the resin sand mould, location steel cylinder material is a mild steel, its diameter is 5 millimeters, highly is 10 millimeters; The gear wheel blasting treatment; On the steel-tooth cone tooth, smear 5 millimeters thick then by weight by artificial single crystal's diamond 2 of 10% bonding adhesive, 20% 250-425 micron and 70% tungsten carbide particle 3 composite layers to be sintered, on the steel-tooth cone alveolar surface, smear 5 millimeters thick by weight by 10% bonding adhesive and 90% the composite layer to be sintered of tungsten carbide particle; Gear wheel is packed in the outer mold of graphite; In mould, add an amount of resin sand 1 then; The outer mold of the graphite that installs resin sand and gear wheel is put into 250 ℃ of baking oven bakings one hour; Take out then, add an amount of copper base binding metal 5 and flux, reenter the stove melting infiltration sintering, furnace temperature arrive 1100 ℃ (degree centigrade) back insulation 30 minutes, the insulation cooling of coming out of the stove, the die sinking cleaning, just can obtain surface peening after the machine steel-tooth cone.
Embodiment 2:
Be with the difference of a last embodiment: the steel-tooth cone surface is coated with the smear layer of 8 millimeters thick; comprise that on the steel-tooth cone tooth tooth top and flank smear 8 millimeters thick by the single-crystal diamond of 10% bonding adhesive, 10% 150-300 micron and 80% the composite layer to be sintered of tungsten carbide particle, on the steel-tooth cone teeth groove, smear 8 millimeters thick by 10% bonding adhesive and 90% the composite layer to be sintered of tungsten carbide particle.Other situation is identical with a last embodiment, and constituent content all by weight.
Claims (10)
1, a kind of surface strengthening steel tooth wheel, include cone body and the tooth that is laid on the cone body conical surface, it is characterized in that being covered with a tungsten carbide diamond complex abrasion-proof layer at the dental surface of steel-tooth cone, described tungsten carbide diamond complex abrasion-proof layer is formed through high temperature melting infiltration sintering below 1200 ℃ by tungsten carbide particle, single-crystal diamond and binding metal, and the percentage composition of tungsten carbide particle, single-crystal diamond and binding metal is by weight: tungsten carbide particle 50-90%, single-crystal diamond 2-30%, the binding metal surplus.
2, by the described surface strengthening steel tooth wheel of claim 1, it is characterized in that the thickness of described tungsten carbide diamond complex abrasion-proof layer is the 1-10 millimeter, be covered in the tooth top and the flank of steel-tooth cone tooth.
3, by claim 1 or 2 described surface strengthening steel tooth wheels, it is characterized in that described tungsten carbide particle granularity is the 20-600 micron.
4, by claim 1 or 2 described surface strengthening steel tooth wheels, the grain graininess that it is characterized in that described single-crystal diamond is the 90-600 micron.
5, by claim 1 or 2 described surface strengthening steel tooth wheels, it is characterized in that described binding metal is a copper base binding metal, for being the acid bronze alloy of copper, nickel, manganese, zinc, tin metal composition.
6, by claim 1 or 2 described surface strengthening steel tooth wheel drill bits, it is characterized in that being covered with the carbine abrasion-proof layer at the teeth groove position of steel-tooth cone.
7, by claim 1 or 2 described surface strengthening steel tooth wheel drill bits, it is characterized in that described carbine abrasion-proof layer is formed through high temperature melting infiltration sintering below 1200 ℃ by tungsten carbide particle and binding metal, and the constituent content of tungsten carbide particle and binding metal is by weight: tungsten carbide particle 70-90%, binding metal surplus.
8, a kind of preparation method of surface strengthening steel tooth wheel, it is characterized in that: at first, design an overcoat graphite jig, smear by the composite layer to be sintered of bortz powder, tungsten carbide particle and bonding adhesive at steel-tooth cone dental surface place after surface sand-blasting is handled, the constituent content that layer bortz powder to be sintered, tungsten carbide particle and bonding adhesive mix is by weight: tungsten carbide particle 50-90%, bortz powder 2-30%, the bonding adhesive surplus;
The steel-tooth cone of having smeared layer to be sintered is put into the outer mold of graphite, outside graphite, add a certain amount of resin sand again in the mold, put into 200-300 ℃ of baking oven baking 1-2 hour then, come out of the stove then.
Add an amount of binding metal and flux in the mould after coming out of the stove, go into the stove melting infiltration sintering, the melting infiltration sintering temperature between 900-1200 ℃, the insulation cooling of coming out of the stove behind the surperficial smear layer that waited the binding metal thorough impregnation, die sinking cleaning again.
9, press the preparation method of the described surface strengthening steel tooth wheel of claim 8, it is characterized in that smearing by tungsten carbide particle and the composite layer to be sintered of bonding adhesive at steel-tooth cone teeth groove place, the constituent content that layer tungsten carbide particle to be sintered and bonding adhesive mix is by weight: tungsten carbide particle 70-90%, bonding adhesive surplus; Teeth groove at steel-tooth cone forms the carbine abrasion-proof layer thus.
10,, it is characterized in that before layer to be sintered is smeared, not offering arc groove or chamfering at the tooth top of steel-tooth cone tooth and the intersection of flank by the preparation method of claim 8 or 9 described surface strengthening steel tooth wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2007100528243A CN101100930B (en) | 2007-07-24 | 2007-07-24 | Surface strengthening steel tooth wheel and manufacturing method thereof |
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| CN2007100528243A CN101100930B (en) | 2007-07-24 | 2007-07-24 | Surface strengthening steel tooth wheel and manufacturing method thereof |
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| CN101100930A true CN101100930A (en) | 2008-01-09 |
| CN101100930B CN101100930B (en) | 2010-09-29 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052058A (en) * | 2010-10-20 | 2011-05-11 | 潜江市江汉钻具有限公司 | Method for producing novel high-grade rock drilling diamond compound tooth |
| CN102191446A (en) * | 2011-04-25 | 2011-09-21 | 常州液压成套设备厂有限公司 | Technology or raising bonding strength of matrix and ceramic coating |
| CN102211196A (en) * | 2011-06-07 | 2011-10-12 | 南通高欣金属陶瓷复合材料有限公司 | Ceramic reinforced metal matrix abrasion-resisting compound material and preparation method |
| CN103917733A (en) * | 2011-10-25 | 2014-07-09 | 长年Tm公司 | High-strength, high-hardness binders and drilling tools formed using the same |
| CN104162671A (en) * | 2014-08-26 | 2014-11-26 | 无锡柯马机械有限公司 | Powder post-processing method adopted in powder metallurgy technology |
| CN104712252A (en) * | 2009-08-07 | 2015-06-17 | 史密斯国际有限公司 | Polycrystalline diamond material with high toughness and high wear resistance |
| CN105328588A (en) * | 2011-02-09 | 2016-02-17 | 长年Tm公司 | Wear resistant tool, wear resistant drilling tool and method for forming wear resistant tool |
| CN110944775A (en) * | 2017-07-20 | 2020-03-31 | 爱斯科集团有限责任公司 | Hardfaced products for abrasive applications and processes for making same |
| CN113368782A (en) * | 2021-06-18 | 2021-09-10 | 邵阳市东昇超硬材料有限公司 | Processing method for synthesizing diamond by adopting high-temperature high-pressure method |
| US11213932B2 (en) | 2017-08-04 | 2022-01-04 | Bly Ip Inc. | Diamond bodies and tools for gripping drill rods |
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2007
- 2007-07-24 CN CN2007100528243A patent/CN101100930B/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712252A (en) * | 2009-08-07 | 2015-06-17 | 史密斯国际有限公司 | Polycrystalline diamond material with high toughness and high wear resistance |
| CN102052058B (en) * | 2010-10-20 | 2012-09-26 | 潜江市江汉钻具有限公司 | Method for producing novel high-grade rock drilling diamond compound tooth |
| CN102052058A (en) * | 2010-10-20 | 2011-05-11 | 潜江市江汉钻具有限公司 | Method for producing novel high-grade rock drilling diamond compound tooth |
| CN105328588A (en) * | 2011-02-09 | 2016-02-17 | 长年Tm公司 | Wear resistant tool, wear resistant drilling tool and method for forming wear resistant tool |
| CN105328588B (en) * | 2011-02-09 | 2018-06-19 | 长年Tm公司 | Anti abrasive tool, the method for forming wear resistant tools and wear-resisting drilling tool |
| CN102191446B (en) * | 2011-04-25 | 2013-05-01 | 常州液压成套设备厂有限公司 | Technology or raising bonding strength of matrix and ceramic coating |
| CN102191446A (en) * | 2011-04-25 | 2011-09-21 | 常州液压成套设备厂有限公司 | Technology or raising bonding strength of matrix and ceramic coating |
| CN102211196A (en) * | 2011-06-07 | 2011-10-12 | 南通高欣金属陶瓷复合材料有限公司 | Ceramic reinforced metal matrix abrasion-resisting compound material and preparation method |
| CN103917733A (en) * | 2011-10-25 | 2014-07-09 | 长年Tm公司 | High-strength, high-hardness binders and drilling tools formed using the same |
| CN103917733B (en) * | 2011-10-25 | 2016-01-20 | 长年Tm公司 | For infiltrating hard particles material to form the high rigidity bonding agent of boring bar tool, the main body of boring bar tool and for the formation of the method for boring bar tool of abrasion resistance with increase |
| US9446503B2 (en) | 2011-10-25 | 2016-09-20 | Longyear Tm, Inc. | High-strength, high-hardness binders and drilling tools formed using the same |
| CN104162671A (en) * | 2014-08-26 | 2014-11-26 | 无锡柯马机械有限公司 | Powder post-processing method adopted in powder metallurgy technology |
| CN110944775A (en) * | 2017-07-20 | 2020-03-31 | 爱斯科集团有限责任公司 | Hardfaced products for abrasive applications and processes for making same |
| US11213932B2 (en) | 2017-08-04 | 2022-01-04 | Bly Ip Inc. | Diamond bodies and tools for gripping drill rods |
| CN113368782A (en) * | 2021-06-18 | 2021-09-10 | 邵阳市东昇超硬材料有限公司 | Processing method for synthesizing diamond by adopting high-temperature high-pressure method |
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| Publication number | Publication date |
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| CN101100930B (en) | 2010-09-29 |
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Address after: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee after: SINOPEC OILFIELD EQUIPMENT CORPORATION Address before: 430223 Hubei city of Wuhan province East Lake high tech Development Zone Miaoshan Kingdream company Patentee before: Jianghan Petroleum Drilling Bit Co., Ltd. |
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Effective date of registration: 20180223 Address after: 430223, No. 5, Chinese workers' garden, Temple Hill community, East Lake New Technology Development Zone, Wuhan, Hubei Co-patentee after: SINOPEC OILFIELD EQUIPMENT CORPORATION Patentee after: Kingdream Sinopec Petroleum Machinery Co. Ltd. Address before: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee before: SINOPEC OILFIELD EQUIPMENT CORPORATION |