CN110372393A - A kind of production method of polycrystalline cubic boron nitride compound sheets - Google Patents
A kind of production method of polycrystalline cubic boron nitride compound sheets Download PDFInfo
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- CN110372393A CN110372393A CN201910712042.0A CN201910712042A CN110372393A CN 110372393 A CN110372393 A CN 110372393A CN 201910712042 A CN201910712042 A CN 201910712042A CN 110372393 A CN110372393 A CN 110372393A
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- boron nitride
- cubic boron
- nitride compound
- stirring rod
- cartridge
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- 229910052582 BN Inorganic materials 0.000 title claims abstract description 67
- -1 boron nitride compound Chemical class 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000005520 cutting process Methods 0.000 claims abstract description 34
- 238000002156 mixing Methods 0.000 claims abstract description 32
- 239000004202 carbamide Substances 0.000 claims abstract description 27
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000002245 particle Substances 0.000 claims abstract description 24
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 claims abstract description 12
- INZDTEICWPZYJM-UHFFFAOYSA-N 1-(chloromethyl)-4-[4-(chloromethyl)phenyl]benzene Chemical compound C1=CC(CCl)=CC=C1C1=CC=C(CCl)C=C1 INZDTEICWPZYJM-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 40
- 235000013339 cereals Nutrition 0.000 claims description 21
- 229920001296 polysiloxane Polymers 0.000 claims description 18
- 230000000694 effects Effects 0.000 claims description 10
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 238000005119 centrifugation Methods 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 7
- GJNGXPDXRVXSEH-UHFFFAOYSA-N 4-chlorobenzonitrile Chemical compound ClC1=CC=C(C#N)C=C1 GJNGXPDXRVXSEH-UHFFFAOYSA-N 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 229910003460 diamond Inorganic materials 0.000 description 5
- 239000010432 diamond Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 230000005574 cross-species transmission Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000760 Hardened steel Inorganic materials 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 229910001037 White iron Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000021050 feed intake Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/83—Mixing plants specially adapted for mixing in combination with disintegrating operations
- B01F33/8305—Devices with one shaft, provided with mixing and milling tools, e.g. using balls or rollers as working tools; Devices with two or more tools rotating about the same axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/836—Mixing plants; Combinations of mixers combining mixing with other treatments
- B01F33/8361—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating
- B01F33/83611—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating by cutting
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
- C04B35/583—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on boron nitride
- C04B35/5831—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on boron nitride based on cubic boron nitrides or Wurtzitic boron nitrides, including crystal structure transformation of powder
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
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- C04B2235/3817—Carbides
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
- C04B2235/3856—Carbonitrides, e.g. titanium carbonitride, zirconium carbonitride
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
- C04B2235/3886—Refractory metal nitrides, e.g. vanadium nitride, tungsten nitride
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- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
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Abstract
A kind of production method of polycrystalline cubic boron nitride compound sheets provided by the invention comprising following steps: 1) by the average grain diameter of 44%-46% be 1-2 microns of cubic boron nitride particles, 43%-46% average grain diameter be that the titanizing carbon nitrogen of 3-5 microns of cubic boron nitride particles and 1%-5% mixes 17-19 minutes in blending tank；It is added urea mixing 15-25 minutes of 1%-5%, 2) the vanadium carbide mixing of 1%-5% 6-10 hours is added, compacting is assembled after being precisely weighed, it anneals 3-5 hours under conditions of 800-1000 DEG C and high vacuum 10-14Pa, under conditions of 95-97MPa and 1400-1500 DEG C, in cubic hydraulic press, high-end cutter polycrystalline cubic boron nitride compound sheets are synthesized, generated time 30-40 minutes.The present invention is logical to promote chemical abrasion mechanism tolerance and chemical inertness, and the service life of PCBN cutter piece (artificial cubic boron nitride cutting tool) can be made to improve 20% or so.
Description
Technical field
The present invention relates to plycrystalline diamond boron nitride compacts technical fields, and in particular to a kind of polycrystalline cubic boron nitride compound sheets
Production method.
Background technique
Currently, in some High speed finish machinings for being difficult to cut material, such as hardened steel, cast iron, carbon steel, it is desirable that cutter
Rapidoprint have high thermal stability and good thermal conductivity, the cutters such as polycrystalline diamond composite sheet material during the cutting process,
Since temperature is excessively high, it is easy to phenomenon of rupture occur, influence working efficiency.The hardness of cubic boron nitride is only second to diamond, tool
There are very high thermal stability and extremely strong chemical stability, composite polycrystal-diamond can be effectively replaced, as ferrous metal
Process tool material.Hardened steel, mold of the hardness in HRC60 or more can be processed in polycrystalline cubic boron nitride compound sheets cutter
The conventional tools difficult to machine material such as the hard alloy such as steel, tool steel, steel alloy, grey iron, white iron, ceramics, and disconnected
Continuous cutting has its unique feature and application case in terms of roughing.Suitable for machine tool, special purpose machine tool, transfer matic and
Numerically-controlled machine tool is widely used in the machining of the industries such as military project, automobile, metallurgical roller, bearing, mold.
The production method of the polycrystalline cubic boron nitride compound sheets of existing cubic boron nitride its use Monosized powder cube
Boron nitride, and technological parameter is unreasonable, lacks so that the service life of PCBN cutter piece (artificial cubic boron nitride cutting tool) is lower
It falls into.
Summary of the invention
(1) technical problems to be solved
The object of the present invention is to provide a kind of production methods of polycrystalline cubic boron nitride compound sheets, solve existing cube
It uses the cubic boron nitride of Monosized powder to the production method of the polycrystalline cubic boron nitride compound sheets of boron nitride, and technological parameter is not
Rationally, so that the lower defect of service life of PCBN cutter piece (artificial cubic boron nitride cutting tool).
(2) technical solution
In order to solve the above technical problem, the present invention provides a kind of polycrystalline cubic boron nitride compound sheets production method,
Itself the following steps are included:
1) by the average grain diameter of 44%-46% be 1-2 microns of cubic boron nitride particles, 43%-46% average grain diameter be
The titanizing carbon nitrogen of 3-5 microns of cubic boron nitride particles and 1%-5% mix 17-19 minutes in blending tank；It is added 1%-5%'s
Urea mixing 15-25 minutes,
2) add the vanadium carbide mixing of 1%-5% 6-10 hours, compacting assembled after being precisely weighed, at 800-1000 DEG C and
High vacuum 10-4It anneals 3-5 hours under conditions of Pa, under conditions of 95-97MPa and 1400-1500 DEG C, in cubic hydraulic press
It is interior, synthesize high-end cutter polycrystalline cubic boron nitride compound sheets, generated time 30-40 minutes.The present invention is by changing cube nitrogen
Granularmetric composition and a variety of materials proportion composition for changing boron, adjust synthesis pressure and synthesis temperature, adjustment assembles the work of each process
Skill index promotes chemical abrasion mechanism tolerance and chemical inertness, can make PCBN cutter piece (artificial cubic boron nitride cutting tool)
Service life improves 20% or so.
Optionally, the blending tank includes tank body, described from top to bottom inserted with stirring rod and fixed frame in the tank body
Fixed frame is equipped with the first cartridge for having gap with stirring rod, and the stirring rod passes through the first cartridge and extends downwardly into tube body
Bottom；The first cartridge upper area is equipped with filter opening；The top that the stirring rod is located at the first cartridge is fixed with rectangle
The second cartridge；Second cartridge includes the inner barrel and outer barrel being fixed in stirring rod；The inner cylinder bottom is equipped with and cuts
Cutting blade, the hinged inner cylinder in cutting blade bottom end are equipped with sealed silicone at the top of the cutting blade, and the sealed silicone is by the
Two cartridges are separated into the loading chamber and movable chamber for being used to be packed into urea positioned at top；The blade face of the cutting blade seals
Sealed silicone is cut in silica gel, the effect for the centrifugal force in stirring rod.It needs successively to put into 44%- in technique of the invention
46% average grain diameter be 1-2 microns of cubic boron nitride particles, 43%-46% average grain diameter be 3-5 microns of cubic boron nitrides
The mixture of the titanizing carbon nitrogen of particle and 1%-5% after mixing them thoroughly, then puts into urea mixing, can opening is needed to carry out
Secondary batching, it is complicated for operation, and the urea and urea high volatility of special ratios can not be arbitrarily put into, it is pungent to human body (especially
It is eyes and mouth and nose) there is certain toxicity；If personnel station feeds intake at leisure on one side in tank body, need to wear a gas mask；
The present invention uses novel blending tank；Urea is previously charged into the second cartridge；The blade face sealed silicone of cutting blade,
Sealed silicone is cut in effect for the centrifugal force in stirring rod；The stirring rate for only needing to control stirring rod can add urea
Enter 44%-46% average grain diameter be 1-2 microns of cubic boron nitride particles, 43%-46% average grain diameter be 3-5 microns cubes
In the mixture of the titanizing carbon nitrogen of boron nitride particle and 1%-5%, dispensing is simple easily controllable, does not need secondary charging and throws
Material；Allow 4%-46% average grain diameter be 1-2 microns of cubic boron nitride particles, 43%-46% average grain diameter be 3-5 micro-
Urea, dust is successively gradually added in the mixed process of the mixture of the titanizing carbon nitrogen of rice cubic boron nitride particle and 1%-5%
Be not easy it is free-and-easy everywhere；Make its mixing more evenly；It does not need personnel station and puts into urea at leisure in tank body side, avoid people
Member puts into urea in tank body side at leisure, will not have an impact to human body, operates safer.The object of first cartridge simultaneously
After expecting the extreme lower position that spill-over is more than filter opening, and further thrown away after filter hole filters in the effect of stirring rod centrifugal force,
It does not need individually to be filtered urea.
Optionally, the inner cylinder bottom is equipped with free bearing, the hinged free bearing in cutting blade bottom, the cutting blade and hinge
It is also equipped with torsional spring between seat, is used for so that cutting blade withdraws inner cylinder.Torsional spring is arranged in the present invention, so that cutting edge is arbitrarily received
Folded or expansion, convenient for control urea feed rate.
Optionally, first cartridge includes the anti-of the cylinder being fixed on fixed frame and the arc at the top of cylinder
Protect dome.
Optionally, feeding tube is offered on the protection dome.
Optionally, be sequentially connected driving motor at the top of the stirring rod；Stirring rod, which is located in the first cartridge, is equipped with a pair
First paddle.
Optionally, the bottom that the stirring rod extends downwardly the first cartridge is equipped with the second paddle.
Optionally, the top of the tank is fixed with the commissioning pipe extended downwardly into；The bottom of the tank body is equipped with discharge nozzle, institute
It states on discharge nozzle equipped with control valve.
(3) beneficial effect
A kind of production method of polycrystalline cubic boron nitride compound sheets provided by the invention, has the advantage that
1, the present invention by change cubic boron nitride granularmetric composition and a variety of materials proportion composition, adjust synthesis pressure and
Synthesis temperature, adjustment assemble the technic index of each process, promote chemical abrasion mechanism tolerance and chemical inertness, can make PCBN
The service life of cutter piece (artificial cubic boron nitride cutting tool) improves 20% or so.
2, the present invention uses novel blending tank；Urea is previously charged into the second cartridge；The blade of cutting blade is just
To sealed silicone, sealed silicone is cut in the effect for the centrifugal force in stirring rod；Only need to control the stirring rate of stirring rod
The average grain diameter that urea can be added to 44%-46% is the average grain diameter of 1-2 microns of cubic boron nitride particles, 43%-46%
It is simple easily controllable to launch in the mixture of 3-5 microns of cubic boron nitride particles and the titanizing carbon nitrogen of 1%-5%, it is not required to
Secondary charging is wanted to feed intake；Allow 4%-46% average grain diameter be 1-2 micron cubic boron nitride particles, 43%-46% put down
Equal partial size be the mixed process of the mixture of 3-5 microns of cubic boron nitride particles and the titanizing carbon nitrogen of 1%-5% successively gradually
Be added urea, dust be not easy it is free-and-easy everywhere；Make its mixing more evenly；Personnel station is not needed to put at leisure in tank body side
Urea avoids personnel in tank body side and puts into urea at leisure, will not have an impact to human body, operates safer.Centrifugation
Sealed silicone is cut in the effect of power；So that urea being put into the first cartridge slowly, while the material spill-over of the first cartridge
It throws away, does not need after filter hole filters in the effect of stirring rod centrifugal force after the extreme lower position of filter opening, and further
Individually urea is filtered.
Detailed description of the invention
Fig. 1 is the blending tank sectional view of the production method embodiment 4 of polycrystalline cubic boron nitride compound sheets of the invention；
Fig. 2 is bowing for the inside of 4 blending tank of embodiment of the production method of polycrystalline cubic boron nitride compound sheets of the invention
View；
Fig. 3 is the first dress of the blending tank of the embodiment 4 of the production method of polycrystalline cubic boron nitride compound sheets of the invention
The outside figure of the cylinder of barrel；
Fig. 4 is the second dress of the blending tank of the embodiment 4 of the production method of polycrystalline cubic boron nitride compound sheets of the invention
The sectional view of barrel.
1, tank body, 2, stirring rod, 3, fixed frame, 4, driving motor, the 5, first cartridge, the 6, first paddle, 7, second
Paddle, 8, filter opening, the 9, second cartridge, 10, inner cylinder, 11, outer cylinder, 12, cutting blade, 13, sealed silicone, 14, loading chamber,
15, movable chamber, 16, free bearing, 17, torsional spring, 18, cylinder, 19, protection dome, 20, feeding tube, 21, commissioning pipe, 22, discharge nozzle,
23, control valve.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Following instance
For illustrating the present invention, but it is not intended to limit the scope of the invention.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more；Term " on ",
The orientation or positional relationship of the instructions such as "lower", "left", "right", "inner", "outside", " front end ", " rear end ", " head ", " tail portion " is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second ", " third " etc. are used for description purposes only, and should not be understood as instruction or
Imply relative importance.In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is connected directly, it can also be indirectly connected through an intermediary.For those of ordinary skill in the art and
Speech, can understand the concrete meaning of above-mentioned term in the present invention with concrete condition.
Embodiment 1
A kind of production method of polycrystalline cubic boron nitride compound sheets provided by the invention comprising following steps:
1) by 44% average grain diameter be 1-2 microns of cubic boron nitride particles, 46% average grain diameter be 3-5 microns cubes
Boron nitride particle and 5% titanizing carbon nitrogen mix 17 minutes in blending tank；2% urea mixing 15 minutes is added,
2) 3% vanadium carbide mixing 6 hours is added, compacting is assembled after being precisely weighed, in 800 DEG C and high vacuum 10-4Pa
Under conditions of anneal 3 hours, under conditions of 95MPa and 1400 DEG C, in cubic hydraulic press, synthesize high-end cutter plycrystalline diamond
Cubic boron nitride composite piece, generated time 30 minutes.
Percentage of the invention is weight percentage.Polycrystalline cubic boron nitride compound sheets produced by the present invention use the longevity
Life improves 20%；And hardness HV4000,1500 DEG C of heat resistance, coefficient of friction 0.3, elasticity modulus 650Gpa.
Embodiment 2
A kind of production method of polycrystalline cubic boron nitride compound sheets provided by the invention comprising following steps:
1) by 46% average grain diameter be 1-2 microns of cubic boron nitride particles, 43% average grain diameter be 3-5 microns cubes
Boron nitride particle and 3% titanizing carbon nitrogen mix 19 minutes in blending tank；5% urea mixing 25 minutes is added,
2) 3% vanadium carbide mixing 10 hours is added, compacting is assembled after being precisely weighed, in 1000 DEG C and high vacuum 10- 4It anneals 5 hours under conditions of Pa, under conditions of 97MPa and 1500 DEG C, in cubic hydraulic press, synthesizes high-end cutter and use
Polycrystalline cubic boron nitride compound sheets, generated time 40 minutes.
The service life of polycrystalline cubic boron nitride compound sheets produced by the present invention improves 20%；And hardness HV5000, it is resistance to
Hot 1450 DEG C, coefficient of friction 0.2, elasticity modulus 660Gpa.
Embodiment 3
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the invention also discloses a kind of blending tank, including tank body 1, in the tank body
From top to bottom inserted with stirring rod 2 and fixed frame 3, the stirring rod top transmission connection driving motor 4；The fixed frame is equipped with
There is first cartridge 5 in gap with stirring rod, stirring rod, which is located in the first cartridge, is equipped with a pair of first paddle 6.It is described
The bottom that stirring rod extends downwardly the first cartridge is equipped with the second paddle 7.The stirring rod passes through the first cartridge and stretches downwards
Enter the bottom of tube body；The first cartridge upper area is equipped with filter opening 8；The top that the stirring rod is located at the first cartridge is solid
Surely there is the second cartridge 9 of rectangle；Second cartridge includes the inner cylinder 10 and outer cylinder 11 being fixed in stirring rod；In described
Cylinder bottom is equipped with cutting blade 12, the hinged inner cylinder in cutting blade bottom end, and the cutting blade top is equipped with sealed silicone 13,
Second cartridge is separated into the loading chamber 14 and movable chamber 15 for being used to be packed into urea positioned at top by the sealed silicone；It is described to cut
Sealed silicone is cut in the blade face sealed silicone of cutting blade, the effect for the centrifugal force in stirring rod.The inner cylinder bottom
Equipped with free bearing 16, the hinged free bearing in cutting blade bottom is also equipped with torsional spring 17, for making between the cutting blade and free bearing
It obtains cutting blade and withdraws inner cylinder.
First cartridge includes the cylinder 18 being fixed on fixed frame and the protection vault of the arc at the top of cylinder
Top 19.Feeding tube 20 is offered on the protection dome.The top of the tank is fixed with the commissioning pipe 21 extended downwardly into；The tank
The bottom of body is equipped with discharge nozzle 22, and control valve 23 is housed on the discharge nozzle.
It is in advance 1-2 microns of cubic boron nitride particles, 43%- by the average grain diameter of 44%-46% when the present embodiment is implemented
46% average grain diameter is fitted into the first cartridge for the titanizing carbon nitrogen of 3-5 microns of cubic boron nitride particles and 1%-5%, is carried out
Mixing；Urea is packed into the second cartridge；When the average grain diameter of 44%-46% is 1-2 microns of cubic boron nitride particles, 43%-
46% average grain diameter is that the titanizing carbon nitrogen mixing of 3-5 microns of cubic boron nitride particles and 1%-5% terminates；It further increases and stirs
Rate is commented in the stirring for mixing stick, and the blade face sealed silicone of cutting blade, cuts sealed silicon in the effect of the centrifugal force of stirring rod
Glue；So that urea being put into the first cartridge slowly, while the material spill-over of the first cartridge is more than the extreme lower position of filter opening
Afterwards, and further it throws away after filter hole filters in the effect of stirring rod centrifugal force, is stirred into the bottom of tank body, then
Secondary mixing.
The various embodiments described above are merely to illustrate the present invention, wherein the structure of each component, connection type etc. are all can be
Variation, all equivalents and improvement carried out based on the technical solution of the present invention should not be excluded of the invention
Except protection scope.
Claims (8)
1. a kind of production method of polycrystalline cubic boron nitride compound sheets, which comprises the following steps:
1) by the average grain diameter of 44%-46% be 1-2 microns of cubic boron nitride particles, 43%-46% average grain diameter be 3-5 micro-
The titanizing carbon nitrogen of rice cubic boron nitride particle and 1%-5% mix 17-19 minutes in blending tank；The urea of 1%-5% is added
Mixing 15-25 minutes,
2) the vanadium carbide mixing of 1%-5% 6-10 hours is added, compacting is assembled after being precisely weighed, in 800-1000 DEG C and Gao Zhen
Sky 10-4It anneals 3-5 hours under conditions of Pa, under conditions of 95-97MPa and 1400-1500 DEG C, in cubic hydraulic press,
Synthesize high-end cutter polycrystalline cubic boron nitride compound sheets, generated time 30-40 minutes.
2. the production method of polycrystalline cubic boron nitride compound sheets as described in claim 1, which is characterized in that the blending tank packet
Include tank body, from top to bottom inserted with stirring rod and fixed frame in the tank body, the fixed frame, which is equipped with, has gap with stirring rod
The first cartridge, the stirring rod passes through the first cartridge and extends downwardly into the bottom of tube body；First cartridge upper zone
Domain is equipped with filter opening；The top that the stirring rod is located at the first cartridge is fixed with the second cartridge of rectangle；Second charging
Cylinder includes the inner barrel and outer barrel being fixed in stirring rod；The inner cylinder bottom is equipped with cutting blade, the cutting blade bottom end hinge
Inner cylinder is connect, sealed silicone is housed at the top of the cutting blade, the second cartridge is separated into and uses positioned at top by the sealed silicone
In the loading chamber and movable chamber that are packed into urea；The blade face sealed silicone of the cutting blade, for the centrifugation in stirring rod
Sealed silicone is cut in the effect of power.
3. the production method of polycrystalline cubic boron nitride compound sheets as claimed in claim 2, which is characterized in that the inner cylinder bottom
Equipped with free bearing, the hinged free bearing in cutting blade bottom is also equipped with torsional spring between the cutting blade and free bearing, for so that cutting
Cutting blade withdraws inner cylinder.
4. the production method of polycrystalline cubic boron nitride compound sheets as claimed in claim 3, which is characterized in that first charging
Cylinder includes the cylinder being fixed on fixed frame and the protection dome of the arc at the top of cylinder.
5. the production method of polycrystalline cubic boron nitride compound sheets as claimed in claim 4, which is characterized in that the protection dome
On offer feeding tube.
6. the production method of the polycrystalline cubic boron nitride compound sheets as described in Claims 2 or 3 or 4 or 5, which is characterized in that institute
State the driving motor that is sequentially connected at the top of stirring rod；Stirring rod, which is located in the first cartridge, is equipped with a pair of first paddle.
7. the production method of polycrystalline cubic boron nitride compound sheets as claimed in claim 6, which is characterized in that the stirring rod to
The lower bottom for stretching out the first cartridge is equipped with the second paddle.
8. the production method of the polycrystalline cubic boron nitride compound sheets as described in Claims 2 or 3 or 4 or 5, which is characterized in that institute
It states top of the tank and is fixed with the commissioning pipe extended downwardly into；The bottom of the tank body is equipped with discharge nozzle, and control is housed on the discharge nozzle
Valve processed.
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Denomination of invention: A production method for polycrystalline cubic boron nitride composite sheets Granted publication date: 20210907 Pledgee: Bank of Jinhua Limited by Share Ltd. science and Technology Branch Pledgor: JINHUA ZHONGYE SUPERHARD MATERIAL COMPOSITE Co.,Ltd. Registration number: Y2024980006390 |