CN103553637A - Cubic boron nitride glomerocryst composite with surface coating structure and preparation method thereof - Google Patents
Cubic boron nitride glomerocryst composite with surface coating structure and preparation method thereof Download PDFInfo
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Abstract
The invention belongs to the technical field of material machining, and particularly relates to a cubic boron nitride glomerocryst composite with a surface coating structure and a preparation method thereof. The composite is prepared by the following steps of firstly preparing mullite precursor sol; after aging and concentrating the sol, adding the sol into cubic boron nitride powder for in situ solation and gelation; drying and obtaining cubic boron nitride with a surface coating; mixing the cubic boron nitride with a binder, then pressing into test blocks, assembling the test blocks and transmission mediums into compound blocks, then sintering so as to obtain the cubic boron nitride glomerocryst composite with the surface coating structure. According to the preparation method for the cubic boron nitride glomerocryst composite with the surface coating structure, a layer of mullite chemical substance is coated on the surface of the cubic boron nitride, so that the chemical structure and composition of the surface of the cubic boron nitride are improved, and the impact toughness and cutting efficiency of the sintered glomerocryst cubic boron nitride composite are improved.
Description
Technical field
The invention belongs to machining material technology field, particularly a kind of polycrystalline cubic boron nitride compound material with full-package structure and preparation method thereof.
Background technology
Utilize bonding agent the small single crystal particle of cubic boron nitride (cBN) can be bondd under High Temperature High Pressure and prepare the PcBN(polycrystalline cubic boron nitride that becomes block), because polycrystalline cubic boron nitride has high rigidity, high-wearing feature, high heat transfer efficiency and the excellent advantages such as high-temperature behavior, therefore, polycrystalline cubic boron nitride cutter can be used to make the cutter material of the difficult-to-machine metals such as quenched steel, cold hard cast-iron, superstrength iron group alloy, titanium alloy.
For improving durability and the working (machining) efficiency of cutter, adopting the alternative inserted tool of polycrystalline cubic boron nitride cutter and sintex is the trend of superhard cutting tool development.Progress along with Materials science, requirement to the hardness of cutter material, wear resistance, toughness and intensity is had higher requirement, desirable cutter material should both have high hardness, wear resistance, be conducive to improve stock-removing efficiency, extend tool life, the toughness having had again, makes it can bear large cutting force simultaneously.If, easily there is " collapsing cutter " phenomenon in use procedure in poor toughness, not only destroy workpiece to be machined, even there is the injury accident to the infringement of equipment or operator, must stop the course of processing, the blade more renewing, causes production cost obviously to increase.
In order to overcome this deficiency, people start to improve the toughness of polycrystalline cubic boron nitride cutter material.The disclosed patent WO2004040029 of Britain Element Six company, the core that adopts the mixture of various carbide and nitride to form a kind of complexity is scattered in matrix, in matrix, be surrounded by superhard material cubic boron nitride and diamond, and bonding agent, through the synthetic polycrystalline cubic boron nitride with a kind of polynuclear plane of high pressure-temperature, there is good intensity and fracture toughness property.Chinese patent CN201010542237.4 discloses a kind of plating nickel on surface Si
3n
4the preparation method of crystal whisker toughened polycrystalline cubic boron nitride compound sheets, adopts Si
3n
4the Si of whisker and coating surface nano nickel
3n
4the introducing of whisker increases the toughness of polycrystalline cubic boron nitride compound sheets, has improved the impact resistance of cutter, thereby realizes its turning continuously for a long time, improves the work-ing life of cutter and the production efficiency of enterprise.Chinese patent 201010615047.0 also discloses the powdery binder that a kind of polycrystalline cubic boron nitride compound sheets is used, and includes TiN, AlN, Si
3n4, Co and SiO
2, can strengthen the shock resistance of composite sheet.Chinese patent 201110325539.0 is by utilizing the high tenacity of body material W-Co kind Wimet, glomerocryst layer chemical gradient at polycrystalline cubic boron nitride sexually revises the powder content of high tenacity W-Co kind hard alloy substrate, and adopts the crystal whisker reinforced and toughened overall flexibility that improves sintered polycrystalline cubic boron nitride composite piece of inorganic non-metallic.
Summary of the invention
The object of this invention is to provide a kind of new thinking, by cubic boron nitride, be coated, thereby polycrystalline cubic boron nitride matrix material of a kind of high tenacity and preparation method thereof is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of polycrystalline cubic boron nitride compound material with full-package structure, by laxative remedy, obtain: first prepare mullite precursor colloidal sol, after colloidal sol ageing is concentrated, add in cubic boron nitride powder and carry out original position solation and gelation, dry rear acquisition has surface coated cubic boron nitride; Compacting test block after it is mixed with binding agent, then be assembled into synthetic piece with transmission medium, sintering obtains having the polycrystalline cubic boron nitride compound material of full-package structure afterwards.
The method of preparing mullite precursor colloidal sol is as follows: by aluminum contained compound, silicon-containing compound and catalyzer with water mixes and carry out polyreaction, obtain described mullite precursor colloidal sol.
Aluminum contained compound and silicon-containing compound are according to mullite chemical composition 3Al
2o
32SiO
2stoichiometric equation is set the proportioning add, the amount of substance that water adds be aluminum contained compound, both amount of substance summations of silicon-containing compound 5-16 doubly, the amount that catalyzer adds take that to adjust pH value be 2 ~ 3.
Aluminum contained compound is selected from one or more the mixture in aluminium powder, aluminum isopropylate, aluminum chloride and aluminum nitrate; Described silicon-containing compound is tetraethoxy; The preferred hydrochloric acid of described catalyzer or acetic acid.
Wherein, aluminum contained compound is aluminium source, and silicon-containing compound is silicon source.The condition of polyreaction is as follows: time 2-72h, 30～60 ℃ of temperature of reaction.
Mullite precursor colloidal sol is 50～60
othe ageing that C carries out 10～24 hours concentrates, and while adding in cubic boron nitride powder, in cubic boron nitride powder and colloidal sol, the mass ratio of solid matter is 40～60:60-40.
When colloidal sol ageing is concentrated, temperature can have upper and lower 1 ℃ floating.
Original position solation process temperature is 60～65 ℃, and the time is controlled at 2～8 hours; Gelling temperature is 65～120 ℃, and the time is controlled at 4～12 hours.Solation and gelling temperature can have upper and lower 1-2 ℃ floating.
Described cubic boron nitride powder is comprised of the cubic boron nitride micro mist of the size distribution of following mass percent: 1-4 μ m accounts for 42～45%, 7-10 μ m and accounts for 35～50%, 12-15 μ m and account for 5～20%.
When having surface coated cubic boron nitride and mixing with binding agent, both mass fractions are as follows: have surface coated cubic boron nitride 25-90 part, binding agent 2-25 part; Be preferably and there is surface coated cubic boron nitride 75-83 part, binding agent 17-25 part.
Described binding agent is one or more the mixture in metal cobalt powder, metal nickel powder, titanium nitride, aluminium nitride, titanium carbide, wolfram varbide.
The mixture of binding agent preferable alloy cobalt powder and titanium nitride.Both ratios are preferably 6-12 part: 7-14 part.
The best purity of binding agent is all greater than 99%, and particle diameter is not more than 10 μ m.
The test block of compression moulding is put in the molybdenum cup of salt tube shield layer isolation, then puts the salt pipe installing into graphite jig, finally packs agalmatolite cavity into, and end socket, is assembled into synthetic piece.
Composite material by adopting cubic pressure machine equipment synthesizes, and pressure is 4.6～7.0 GPa, 1300～1600 ℃ of temperature, generated time 6～35 minutes.
Concrete, step prepared by material of the present invention is as follows:
1) proportioning that provides the aluminum contained compound in aluminium source, the silicon-containing compound that silicon source is provided and catalyzer to set according to reaction is mixed in water medium, join in polymerization reaction kettle and at 30-60 ℃ reactive polymeric 2～72 hours, obtain transparent mullite precursor colloidal sol.
2) the mullite precursor colloidal sol in step 1) is carried out to ageing at 50～60 ℃ concentrated, then add the cubic boron nitride powder after purifying treatment, through original position solation process and gelation, dry the cubic boron nitride that obtains the coated one deck mullite chemical composition in surface again.
3) by step 2) in the cubic boron nitride that obtains and binding agent according to different massfraction ratios, mix respectively, be pressed into test block.
4) test block of step 3) compression moulding and transmission medium are assembled into synthetic piece, by high pressure high temperature sintering, obtain polycrystalline cubic boron nitride.
The present invention adopts sol-gel method technique, sol-gel method in-situ polymerization can make cubic boron nitride powder dispersed and be blended in liquid phase, can make at low temperatures the effectively coated one deck mullite Chemical Composition in surface, surface chemical structure and the composition of cubic boron nitride have been improved, the toughness and the stock-removing efficiency that have improved the PcBN of preparation, extended work-ing life.
The cutter being processed into is for processing following material: workpiece material more than main workhardness HRC45, as, the workpiece material that the high rigidity such as various graphitic cast iron, quenched steel, superalloy, high-cobalt hart metal, surface spraying material, black powder sintering metal, titanium alloy, pure nickel, pure tungsten, wear-resisting etc. are difficult to process with universal cutter.
Compared with prior art, tool has the following advantages in the present invention:
The preparation method that the present invention has the polycrystalline cubic boron nitride compound material of full-package structure makes cubic boron nitride surface be coated the material of one deck mullite chemical composition, improve surface chemical structure and the composition of cubic boron nitride, improved toughness and the stock-removing efficiency of the polycrystalline cubic boron nitride matrix material of sintering.
Embodiment
With specific embodiment, technical scheme of the present invention is described below, but protection scope of the present invention is not limited to this:
Embodiment 1
A polycrystalline cubic boron nitride compound material with full-package structure, obtains by laxative remedy:
(1) metering takes containing 0.30 mole of the aluminum nitrate of 9 crystal water, 0.30 mole of aluminum isopropylate, 0.2 mole of tetraethoxy, add 12.4 moles, water, adding catalyzer hydrochloric acid to adjust pH value is 2, under the temperature condition of 60 ± 1 ℃, react, polymerization 22 hours, obtains transparent mullite precursor colloidal sol;
(2), by the mullite precursor colloidal sol in step (1), warp is 60 ± 1
othe ageing that C carries out 10 hours concentrates.Select the admixed finepowder of three kinds of particle diameter cubic boron nitrides, massfraction ratio in each comfortable admixed finepowder of the cubic boron nitride of different-grain diameter is: 1 micron accounts for 42% to 4 micrometer ranges, 7 microns of accounting for 45%, 12 micron and account for 13% to 15 micrometer ranges to 10 micrometer ranges.Above-mentioned cubic boron nitride powder after purifying treatment is joined in precursor sol, in cubic boron nitride powder and colloidal sol, the mass ratio of solid matter is 40/60, again through original position solation process and gelation, the insulation of original position solation process is at 60 ± 1 ℃, time is controlled at 5 hours, gelling temperature is at 95 ± 2 ℃, and the time is controlled at 8 hours, obtains the cubic boron nitride of the coated one deck mullite chemical composition in surface after oven dry.
(3) to account for the massfraction ratio of raw material micro mist be 83% to cubic boron nitride micro mist, and the massfraction ratio that cementing metal cobalt powder and titanium nitride account for respectively raw material micro mist is 10% and 7%.Above-mentioned raw materials micro mist is mixed by preset proportion, and be pressed into test block.
(4) test block of compression moulding is put in the molybdenum cup of salt tube shield layer isolation, then put the salt pipe installing into graphite jig, finally pack agalmatolite cavity into, end socket, be assembled into synthetic piece, dry in baking oven, then obtain polycrystalline cubic boron nitride by high pressure high temperature sintering.The actual conditions of sintering is to adopt cubic pressure machine equipment to synthesize, and pressure is 5.6 GPa, 1450 ℃ of temperature, generated time 6 minutes.
The polycrystalline cubic boron nitride matrix material microhardness that aforesaid method prepares is HV7410, and impelling strength is 722 times, and three-point bending method test bending strength is 781MPa.
Embodiment 2
A polycrystalline cubic boron nitride compound material with full-package structure, obtains by laxative remedy:
(1) metering takes containing 0.30 mole of the aluminum nitrate of 9 crystal water, 0.30 mole of aluminum isopropylate, and 0.2 mole of tetraethoxy, adds 12.4 moles, water, and adding catalyzer hydrochloric acid to adjust pH value is 2.5,60 ± 1
ounder the temperature condition of C, react, polymerization 25 hours, obtains transparent mullite precursor colloidal sol;
(2), by the mullite precursor colloidal sol in step (1), warp is 60 ± 1
othe ageing that C carries out 10 hours concentrates.Select the admixed finepowder of three kinds of particle diameter cubic boron nitrides, massfraction ratio in each comfortable admixed finepowder of the cubic boron nitride of different-grain diameter is: 1 micron accounts for 45% to 4 micrometer ranges, 7 microns of accounting for 40%, 12 micron and account for 15% to 15 micrometer ranges to 10 micrometer ranges.Above-mentioned cubic boron nitride powder after purifying treatment is joined in precursor sol, in cubic boron nitride powder and colloidal sol, the mass ratio of solid matter is 40/60, again through original position solation process and gelation, the insulation of original position solation process is at 60 ± 1 ℃, time is controlled at 5 hours, gelling temperature is at 90 ± 2 ℃, and the time is controlled at 10 hours, obtains the cubic boron nitride of the coated one deck mullite chemical composition in surface after oven dry.
(3) to account for the massfraction ratio of raw material micro mist be 83% to cubic boron nitride micro mist, and the massfraction ratio that cementing metal cobalt powder and titanium nitride account for respectively raw material micro mist is 6% and 11%.Above-mentioned raw materials micro mist is mixed by preset proportion, and be pressed into test block.
(4) test block of compression moulding is put in the molybdenum cup of salt tube shield layer isolation, then put the salt pipe installing into graphite jig, finally pack agalmatolite cavity into, end socket, be assembled into synthetic piece, dry in baking oven, then obtain polycrystalline cubic boron nitride by high pressure high temperature sintering.The actual conditions of sintering is to adopt cubic pressure machine equipment to synthesize, and pressure is 5.3 GPa, 1500 ℃ of temperature, generated time 8 minutes.
The polycrystalline cubic boron nitride matrix material microhardness that aforesaid method prepares is HV7230, and impelling strength is 732 times, and three-point bending method test bending strength is 805MPa.
Embodiment 3
A polycrystalline cubic boron nitride compound material with full-package structure, obtains by laxative remedy:
(1) metering takes containing 0.30 mole of the aluminum nitrate of 9 crystal water, 0.30 mole of aluminum isopropylate, 0.2 mole of tetraethoxy, add 12.4 moles, water, adding catalyzer hydrochloric acid to adjust pH value is 2, under the temperature condition of 60 ± 1 ℃, react, polymerization 22 hours, obtains transparent mullite precursor colloidal sol;
(2), by the mullite precursor colloidal sol in step (1), warp is 60 ± 1
othe ageing that C carries out 10 hours concentrates.Select the admixed finepowder of three kinds of particle diameter cubic boron nitrides, massfraction ratio in each comfortable admixed finepowder of the cubic boron nitride of different-grain diameter is: 1 micron accounts for 42% to 4 micrometer ranges, 7 microns of accounting for 45%, 12 micron and account for 13% to 15 micrometer ranges to 10 micrometer ranges.Above-mentioned cubic boron nitride powder after purifying treatment is joined in precursor sol, and in cubic boron nitride powder and colloidal sol, the mass ratio of solid matter is 50/50, then through original position solation process and gelation, original position solation process is incubated 65 ± 1
oc, the time is controlled at 5 hours, and gelling temperature is 90 ± 2
oc, the time is controlled at 10 hours, obtains the cubic boron nitride of the coated one deck mullite chemical composition in surface after oven dry.
(3) to account for the massfraction ratio of raw material micro mist be 75% to cubic boron nitride micro mist, and the massfraction ratio that cementing metal cobalt powder and titanium nitride account for respectively raw material micro mist is 11% and 14%.Above-mentioned raw materials micro mist is mixed by preset proportion, and be pressed into test block.
(4) test block of compression moulding is put in the molybdenum cup of salt tube shield layer isolation, then put the salt pipe installing into graphite jig, finally pack agalmatolite cavity into, end socket, be assembled into synthetic piece, dry in baking oven, then obtain polycrystalline cubic boron nitride by high pressure high temperature sintering.The actual conditions of sintering is to adopt cubic pressure machine equipment to synthesize, and pressure is 5.3 GPa, 1500 ℃ of temperature, generated time 8 minutes.
The polycrystalline cubic boron nitride matrix material microhardness that aforesaid method prepares is HV7160, and impelling strength is 783 times, and three-point bending method test bending strength is 825MPa.
Embodiment 4
A polycrystalline cubic boron nitride compound material with full-package structure, obtains by laxative remedy:
(1) metering takes 0.30 mole of aluminium powder, containing 0.08 mole of the aluminum nitrate of 9 crystal water, 0.076 mole of tetraethoxy, add 5.5 moles, water, adding catalyzer hydrochloric acid to adjust pH value is 2, under the temperature condition of 55 ± 1 ℃, react, polyase 13 0 hour, obtains transparent mullite precursor colloidal sol;
(2), by the mullite precursor colloidal sol in step (1), warp is 60 ± 1
othe ageing that C carries out 15 hours concentrates.Select the admixed finepowder of three kinds of particle diameter cubic boron nitrides, massfraction ratio in each comfortable admixed finepowder of the cubic boron nitride of different-grain diameter is: 1 micron accounts for 45% to 4 micrometer ranges, 7 microns of accounting for 48%, 12 micron and account for 7% to 15 micrometer ranges to 10 micrometer ranges.Cubic boron nitride powder after purifying treatment is joined in precursor sol, and in cubic boron nitride powder and colloidal sol, the mass ratio of solid matter is 40/60, then through original position solation process and gelation, the above-mentioned solation process insulation of original position is 65 ± 1
oc, the time is controlled at 5 hours, and gelling temperature is 100 ± 2
oc, the time is controlled at 8 hours, obtains the cubic boron nitride of the coated one deck mullite chemical composition in surface after oven dry.
(3) to account for the massfraction ratio of raw material micro mist be 83% to cubic boron nitride micro mist, and the massfraction ratio that cementing metal cobalt powder and titanium nitride account for respectively raw material micro mist is 6% and 11%.Above-mentioned raw materials micro mist is mixed by preset proportion, and be pressed into test block.
(4) test block of compression moulding is put in the molybdenum cup of salt tube shield layer isolation, then put the salt pipe installing into graphite jig, finally pack agalmatolite cavity into, end socket, be assembled into synthetic piece, dry in baking oven, then obtain polycrystalline cubic boron nitride by high pressure high temperature sintering.The actual conditions of sintering is to adopt cubic pressure machine equipment to synthesize, and pressure is 5.3 GPa, 1500 ℃ of temperature, generated time 8 minutes.
The polycrystalline cubic boron nitride matrix material microhardness that aforesaid method prepares is HV7580, and impelling strength is 764 times, and three-point bending method test bending strength is 891MPa.
Embodiment 5
A polycrystalline cubic boron nitride compound material with full-package structure, obtains by laxative remedy:
(1) metering takes 0.38 mole of aluminium powder, and containing 0.10 mole, the aluminum chloride of 6 crystal water, 0.056 mole of tetraethoxy, adds 5.5 moles, water, and adding catalyzer hydrochloric acid to adjust pH value is 2.5,50 ± 1
ounder the temperature condition of C, react, polyase 13 5 hours, obtains transparent mullite precursor colloidal sol;
(2), by the mullite precursor colloidal sol in step (1), warp is 60 ± 1
othe ageing that C carries out 15 hours concentrates.Select the admixed finepowder of three kinds of particle diameter cubic boron nitrides, massfraction ratio in each comfortable admixed finepowder of the cubic boron nitride of different-grain diameter is: 1 micron accounts for 42% to 4 micrometer ranges, 7 microns of accounting for 45%, 12 micron and account for 13% to 15 micrometer ranges to 10 micrometer ranges.Above-mentioned cubic boron nitride powder after purifying treatment is joined in precursor sol, and in cubic boron nitride powder and colloidal sol, the mass ratio of solid matter is 50/50, then through original position solation process and gelation, original position solation process is incubated 60 ± 1
oc, the time is controlled at 5 hours, and gelling temperature is 100 ± 2
oc, the time is controlled at 8 hours, obtains the cubic boron nitride of the coated one deck mullite chemical composition in surface after oven dry.
(3) to account for the massfraction ratio of raw material micro mist be 83% to cubic boron nitride micro mist, and the massfraction ratio that cementing metal cobalt powder and titanium nitride account for respectively raw material micro mist is 10% and 7%.Above-mentioned raw materials micro mist is mixed by preset proportion, and be pressed into test block.
(4) test block of compression moulding is put in the molybdenum cup of salt tube shield layer isolation, then put the salt pipe installing into graphite jig, finally pack agalmatolite cavity into, end socket, be assembled into synthetic piece, dry in baking oven, then obtain polycrystalline cubic boron nitride by high pressure high temperature sintering.The actual conditions of sintering is to adopt cubic pressure machine equipment to synthesize, and pressure is 5.3 GPa, 1500 ℃ of temperature, generated time 6 minutes.
The polycrystalline cubic boron nitride matrix material microhardness that aforesaid method prepares is HV7260, and impelling strength is 747 times, and three-point bending method test bending strength is 832MPa.
Embodiment 6
A polycrystalline cubic boron nitride compound material with full-package structure, obtains by laxative remedy:
(1) metering takes 0.38 mole of aluminium powder, and containing 0.10 mole, the aluminum chloride of 6 crystal water, 0.056 mole of tetraethoxy, adds 5.5 moles, water, and adding catalyzer hydrochloric acid to adjust pH value is 2,55 ± 1
ounder the temperature condition of C, react, polyase 13 0 hour, obtains transparent mullite precursor colloidal sol;
(2), by the mullite precursor colloidal sol in step (1), warp is 60 ± 1
othe ageing that C carries out 10 hours concentrates.Select the admixed finepowder of three kinds of particle diameter cubic boron nitrides, massfraction ratio in each comfortable admixed finepowder of the cubic boron nitride of different-grain diameter is: 1 micron accounts for 42% to 4 micrometer ranges, 7 microns of accounting for 40%, 12 micron and account for 18% to 15 micrometer ranges to 10 micrometer ranges.Above-mentioned cubic boron nitride powder after purifying treatment is joined in precursor sol, and in cubic boron nitride powder and colloidal sol, the mass ratio of solid matter is 40/60, then through original position solation process and gelation, original position solation process is incubated 65 ± 1
oc, the time is controlled at 6 hours, and gelling temperature is 90 ± 2
oc, the time is controlled at 10 hours, obtains the cubic boron nitride of the coated one deck mullite chemical composition in surface after oven dry.
(3) to account for the massfraction ratio of raw material micro mist be 75% to cubic boron nitride micro mist, and the massfraction ratio that cementing metal cobalt powder and titanium nitride account for respectively raw material micro mist is 12% and 13%.Above-mentioned raw materials micro mist is mixed by preset proportion, and be pressed into test block.
(4) test block of compression moulding is put in the molybdenum cup of salt tube shield layer isolation, then put the salt pipe installing into graphite jig, finally pack agalmatolite cavity into, end socket, be assembled into synthetic piece, dry in baking oven, then obtain polycrystalline cubic boron nitride by high pressure high temperature sintering.The actual conditions of sintering is to adopt cubic pressure machine equipment to synthesize, and pressure is 5.6 GPa, 1450 ℃ of temperature, generated time 6 minutes.
The polycrystalline cubic boron nitride matrix material microhardness that aforesaid method prepares is HV7060, and impelling strength is 689 times, and three-point bending method test bending strength is 843MPa.
Claims (10)
1. a polycrystalline cubic boron nitride compound material with full-package structure, it is characterized in that, by laxative remedy, obtain: first prepare mullite precursor colloidal sol, after colloidal sol ageing is concentrated, add in cubic boron nitride powder and carry out original position solation and gelation, dry rear acquisition has surface coated cubic boron nitride; Compacting test block after it is mixed with binding agent, then be assembled into synthetic piece with transmission medium, sintering obtains having the polycrystalline cubic boron nitride compound material of full-package structure afterwards.
2. a preparation method with the polycrystalline cubic boron nitride compound material of full-package structure, it is characterized in that, first prepare mullite precursor colloidal sol, after colloidal sol ageing is concentrated, add in cubic boron nitride powder and carry out original position solation and gelation, dry rear acquisition has surface coated cubic boron nitride; Compacting test block after it is mixed with binding agent, then be assembled into synthetic piece with transmission medium, sintering obtains having the polycrystalline cubic boron nitride compound material of full-package structure afterwards.
3. a kind of preparation method with the polycrystalline cubic boron nitride compound material of full-package structure as claimed in claim 2, it is characterized in that, the method for preparing mullite precursor colloidal sol is as follows: be incorporated in 30-60 ℃ of polyreaction 2-72h and obtain described mullite precursor colloidal sol aluminum contained compound, silicon-containing compound and catalyzer and water are mixed; The amount of substance that water adds is aluminum contained compound, both amount of substance summations of silicon-containing compound 5-16 times.
4. a kind of preparation method with the polycrystalline cubic boron nitride compound material of full-package structure as claimed in claim 3, is characterized in that, aluminum contained compound is selected from one or more the mixture in aluminium powder, aluminum isopropylate, aluminum chloride and aluminum nitrate; Described silicon-containing compound is tetraethoxy; Described catalyzer is hydrochloric acid or acetic acid.
5. a kind of preparation method with the polycrystalline cubic boron nitride compound material of full-package structure as claimed in claim 2, it is characterized in that, mullite precursor colloidal sol is at the concentrated 10-24h of 50～60 ℃ of ageings, and while adding in cubic boron nitride powder, in cubic boron nitride powder and colloidal sol, the mass ratio of solid matter is 40～60:60-40.
6. a kind of preparation method with the polycrystalline cubic boron nitride compound material of full-package structure as claimed in claim 5, it is characterized in that, original position solation process temperature is 60～65 ℃, and the time is controlled at 2～8 hours, gelling temperature is 65～120 ℃, and the time is controlled at 4～12 hours.
7. a kind of preparation method with the polycrystalline cubic boron nitride compound material of full-package structure as claimed in claim 5, it is characterized in that, described cubic boron nitride powder is comprised of the cubic boron nitride micro mist of the size distribution of following mass percent: 1-4 μ m accounts for 42～45%, 7-10 μ m accounts for 35～50%, 12-15 μ m and accounts for 5～20%.
8. a kind of preparation method with the polycrystalline cubic boron nitride compound material of full-package structure as claimed in claim 2, it is characterized in that, when thering is surface coated cubic boron nitride and mixing with binding agent, both mass fractions are as follows: have surface coated cubic boron nitride 25-90 part, binding agent 2-25 part.
9. a kind of preparation method with the polycrystalline cubic boron nitride compound material of full-package structure as claimed in claim 8, it is characterized in that, described binding agent is one or more the mixture in metal cobalt powder, metal nickel powder, titanium nitride, aluminium nitride, titanium carbide, wolfram varbide.
10. a kind of preparation method with the polycrystalline cubic boron nitride compound material of full-package structure as claimed in claim 2, it is characterized in that, composite material by adopting cubic pressure machine equipment synthesizes, and pressure is 4.6～7.0 GPa, 1300～1600 ℃ of temperature, generated time 6～35 minutes.
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| CN114276151A (en) * | 2021-12-21 | 2022-04-05 | 富耐克超硬材料股份有限公司 | PCBN composite material and preparation method thereof |
| CN114774068A (en) * | 2022-04-25 | 2022-07-22 | 无锡腾跃特种钢管有限公司 | Wear-resistant perforating roller and processing method thereof |
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| CN103789596A (en) * | 2014-02-26 | 2014-05-14 | 中原工学院 | Polycrystalline cubic boron nitride cutter material and preparation method thereof |
| CN103789596B (en) * | 2014-02-26 | 2015-11-04 | 中原工学院 | A kind of polycrystalline CBN cutting tool material and preparation method thereof |
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| CN109158591A (en) * | 2018-09-30 | 2019-01-08 | 桂林理工大学 | A kind of metallic aluminium cladding cubic boron nitride and preparation method thereof |
| CN109158591B (en) * | 2018-09-30 | 2021-01-05 | 桂林理工大学 | Metallic aluminum coated cubic boron nitride and preparation method thereof |
| CN113831129A (en) * | 2021-10-13 | 2021-12-24 | 富耐克超硬材料股份有限公司 | Preparation method of superhard cutter |
| CN114276151A (en) * | 2021-12-21 | 2022-04-05 | 富耐克超硬材料股份有限公司 | PCBN composite material and preparation method thereof |
| CN114774068A (en) * | 2022-04-25 | 2022-07-22 | 无锡腾跃特种钢管有限公司 | Wear-resistant perforating roller and processing method thereof |
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