CN110152558A - Sintering device for superhard material and using method thereof - Google Patents
Sintering device for superhard material and using method thereof Download PDFInfo
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- CN110152558A CN110152558A CN201910452998.1A CN201910452998A CN110152558A CN 110152558 A CN110152558 A CN 110152558A CN 201910452998 A CN201910452998 A CN 201910452998A CN 110152558 A CN110152558 A CN 110152558A
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- thermally conductive
- conductive sheet
- superhard
- sintering equipment
- composite tube
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- 239000000463 material Substances 0.000 title claims abstract description 47
- 238000005245 sintering Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 10
- 229910052903 pyrophyllite Inorganic materials 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 239000013078 crystal Substances 0.000 claims abstract description 4
- 239000002131 composite material Substances 0.000 claims description 34
- 230000015572 biosynthetic process Effects 0.000 claims description 28
- 238000003786 synthesis reaction Methods 0.000 claims description 28
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 19
- 239000010439 graphite Substances 0.000 claims description 19
- 229910002804 graphite Inorganic materials 0.000 claims description 19
- 229910003460 diamond Inorganic materials 0.000 claims description 17
- 239000010432 diamond Substances 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 16
- 239000003054 catalyst Substances 0.000 claims description 9
- 238000000748 compression moulding Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 4
- 230000002194 synthesizing effect Effects 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims 2
- 239000010441 alabaster Substances 0.000 claims 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 description 5
- 206010037660 Pyrexia Diseases 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- GJNGXPDXRVXSEH-UHFFFAOYSA-N 4-chlorobenzonitrile Chemical compound ClC1=CC=C(C#N)C=C1 GJNGXPDXRVXSEH-UHFFFAOYSA-N 0.000 description 1
- 229910000967 As alloy Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/06—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies
- B01J3/062—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies characterised by the composition of the materials to be processed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/06—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies
- B01J3/065—Presses for the formation of diamonds or boronitrides
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
- C01B21/0828—Carbonitrides or oxycarbonitrides of metals, boron or silicon
-
- 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
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic 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
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2203/00—Processes utilising sub- or super atmospheric pressure
- B01J2203/06—High pressure synthesis
- B01J2203/0605—Composition of the material to be processed
- B01J2203/062—Diamond
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2203/00—Processes utilising sub- or super atmospheric pressure
- B01J2203/06—High pressure synthesis
- B01J2203/0605—Composition of the material to be processed
- B01J2203/0645—Boronitrides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2203/00—Processes utilising sub- or super atmospheric pressure
- B01J2203/06—High pressure synthesis
- B01J2203/065—Composition of the material produced
- B01J2203/0655—Diamond
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention belongs to the field of superhard materials, and particularly relates to a superhard material sintering device and a use method thereof. The device passes pressure mechanism including the pyrophyllite, heating mechanism and the heat conduction of seting up synthetic chamber, heating mechanism sets up in the synthetic intracavity portion top of pyrophyllite, heat conduction passes pressure mechanism and is including being located the synthetic pipe of the synthetic intracavity of pyrophyllite, and synthetic nose, bottom are by the shutoff of conducting strip. The invention has simple structure, skillfully adopts the raw material which can be synthesized into the single crystal superhard material under the high-temperature and high-pressure environment as the heat-conducting and pressure-transmitting component, and greatly reduces the production cost.
Description
Technical field
The invention belongs to superhard material field more particularly to the sintering equipments and its application method of a kind of superhard material.
Background technique
Currently, synthesizing superhard material is mostly sintered raw material in the way of high temperature and pressure, such as PCD, PCBN plycrystalline diamond are super
The high temperature and pressure of hard material synthesizes, and includes conducting steel ring 1, conductive sheet 2, fever tablet 3, hair using attached sintering equipment shown in FIG. 1
Heat pipe 4, pressure tube 5, diamond pulvis or the raw material such as diamond pulvis and alloy 6, pyrophyllite block 7, first put heat-generating pipe 4
Enter in the synthesis chamber of pyrophyllite block 7, then pressure tube 5 be put into heat-generating pipe 4, then by diamond pulvis or diamond pulvis and
The raw material such as alloy 6 are put into pressure tube 5, are finally sequentially covered fever tablet 3, conductive sheet 2 and conducting steel ring 1, are utilized electric power
So that heat-generating pipe generates heat, while pressing to above-mentioned apparatus, so that pressure is transferred to raw material by pressure tube 5, it is final to realize that high temperature is high
The sintering environment of pressure.
Sintering equipment, which exists, in the prior art is lost excessively high drawback: conducting steel ring 1, conductive sheet 2, hair in described device
Backing 3, heat-generating pipe 4, pressure tube 5 and pyrophyllite block 7 all become industrial wastes, make after the corresponding superhard material of Material synthesis
At the great wasting of resources.
Summary of the invention
The object of the present invention is to provide a kind of sintering equipment of superhard material and its application method, the configuration of the present invention is simple,
Dexterously use the raw material that can synthesize monocrystalline superhard material under high temperature and high pressure environment as thermally conductive and pressure transmission component, substantially
Degree reduces production cost.
In order to solve the above technical problems, The technical solution adopted by the invention is as follows:
A kind of sintering equipment of superhard material, pyrophyllite, heating mechanism and thermally conductive pressure transmission mechanism including offering synthesis chamber, institute
State heating mechanism be set to pyrophyllite synthesis chamber inner upper, the thermally conductive pressure transmission mechanism include be located at pyrophyllite synthesize it is intracavitary
Composite tube, synthesis tube top, bottom are blocked by thermally conductive sheet.
Preferably, the synthesis chamber at least two of the pyrophyllite, and the corresponding composite tube of each synthesis chamber and corresponding
Thermally conductive sheet.
Preferably, the heating mechanism is conducting steel ring, and conducting steel ring bottom is equipped with conductive sheet, and conductive sheet bottom surface, which reclines, leads
The setting of backing top surface.
Preferably, the thermally conductive sheet and composite tube use graphite compression moulding.
Preferably, the thermally conductive sheet and composite tube use the mixture compression moulding of graphite and catalyst, graphite and catalysis
The proportion of agent is matched according to the performance requirement of different product, catalyst be mainly nickel, manganese, cobalt, iron, etc. metals or its conjunction
Gold.
The application method of the sintering equipment of the superhard material, steps are as follows:
1) mixture of graphite/graphite and catalyst is pressed into composite tube and thermally conductive sheet first, it will be on composite tube and pyrophyllite
Then corresponding synthesis cavity gap cooperation is packed into after the raw material of synthesizing superhard material into composite tube and blocks synthesis using thermally conductive sheet
Pipe open top;
2) conducting steel ring is crimped into thermally conductive sheet, and sintering equipment is placed in the environment of 3-20 Gpa, conducting steel ring energization is made
The synthesis chamber internal temperature for obtaining sintering equipment reaches 1000-3000 DEG C and carries out the no less than sintering of 1min.
Preferably, the raw material is superhard list/polycrystalline material or superhard list/polycrystalline material and alloy substrate.
Specifically, the superhard monocrystal material is single-crystal diamond powder or CBN powder, the superhard polycrystalline material is poly-
Diamond.
Compared with the prior art, the invention has the following advantages:
1) three fever tablet in the prior art, heat-generating pipe and pressure tube components are reduced to by the overall structure for simplifying device
" thermally conductive sheet and composite tube " two components, this is because the thermally conductive sheet and composite tube in the present invention are all made of graphite compression moulding,
And graphite has good thermally conductive, conductive and pressure transmission performance, will not influence the superhard monocrystal material or superhard monocrystalline in composite tube
The progress of material and alloy substrate synthesis plycrystalline diamond superhard material;
2) production cost is reduced, as the graphite that thermally conductive and pressure transmission acts on, in high temperature and high pressure environment, will become monocrystalline gold
Hard rock, not only its pressure transmission can be promoted, while it will not become industrial wastes after the production is completed, scrap in the present apparatus
Only possible component is conducting steel ring and pyrophyllite block, and the two components all recoverables;
3) production efficiency is improved, due to graphite eventually output single-crystal diamond, so the present apparatus can be arranged on pyrophillite
Multiple synthesis chambers, improve sintering yield, and the sinterable 2-4 piece plycrystalline diamond of sintering equipment single in the prior art is superhard/superhard
Composite material, but device of the present invention can realize 24 plycrystalline diamond superhard materials of sintering, also in a disguised form reduce and be produced into
This.
Detailed description of the invention
Fig. 1 is the Structure explosion diagram of superhard material sintering equipment in the prior art;
Fig. 2 is superhard material sintering equipment Structure explosion diagram described in embodiment 1;
Fig. 3 is the schematic top plan view of pyrophillite in superhard material sintering equipment described in embodiment 2;
Fig. 4 is the schematic top plan view of pyrophillite in superhard material sintering equipment described in embodiment 3;
Fig. 5 is the schematic top plan view of pyrophillite in superhard material sintering equipment described in embodiment 3.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment 1
As shown in Fig. 2, a kind of sintering equipment of superhard material, including offer the pyrophyllite 7 of single synthesis chamber, heating mechanism and
Thermally conductive pressure transmission mechanism, the heating mechanism are set to pyrophyllite 7 and synthesize chamber inner upper, including conducting steel ring 1, conducting steel ring bottom
Portion is equipped with conductive sheet 2;The thermally conductive pressure transmission mechanism includes being located at pyrophyllite to synthesize intracavitary composite tube 9, the top of composite tube 9, bottom
Blocked by thermally conductive sheet 8,2 bottom surface of conductive sheet recline 8 top surface of thermally conductive sheet setting;The thermally conductive sheet 8 is suppressed with composite tube 9 using graphite
Molding.Wherein diamond pulvis or the raw material such as diamond pulvis and alloy 6 are the raw material for synthesizing plycrystalline diamond ultrahard diamond.
Embodiment 2
As shown in Figure 2,3, a kind of sintering equipment of superhard material, including opening up, there are three the pyrophyllites 7 of synthesis chamber, heating mechanism
With thermally conductive pressure transmission mechanism, the heating mechanism is set to pyrophyllite 7 and synthesizes chamber inner upper, including conducting steel ring 1, conducting steel ring
Bottom is equipped with conductive sheet 2;The thermally conductive pressure transmission mechanism includes the composite tube 9 intracavitary positioned at each synthesis of pyrophyllite, composite tube 9
Top, bottom blocked by thermally conductive sheet 8,2 bottom surface of conductive sheet recline three thermally conductive sheets 8 top surface setting;The thermally conductive sheet 8 and composite tube
9 use graphite compression moulding.
Embodiment 3
As shown in Figure 2,4, a kind of sintering equipment of superhard material, including opening up, there are four the pyrophyllites of synthesis chamber, heating mechanism
With thermally conductive pressure transmission mechanism, the heating mechanism is set to pyrophyllite synthesis 7 inner upper of chamber, including conducting steel ring 1, conducting steel ring
Bottom is equipped with conductive sheet 2;The thermally conductive pressure transmission mechanism includes the composite tube 9 intracavitary positioned at each synthesis of pyrophyllite, composite tube 9
Top, bottom blocked by thermally conductive sheet, 2 bottom surface of conductive sheet recline four thermally conductive sheets 8 top surface setting;The thermally conductive sheet 8 and composite tube 9
Using graphite compression moulding.
Embodiment 4
As shown in Fig. 2,5, a kind of sintering equipment of superhard material, pyrophyllite 7, heating mechanism including offering seven synthesis chambers
With thermally conductive pressure transmission mechanism, the heating mechanism is set to pyrophyllite 7 and synthesizes chamber inner upper, including conducting steel ring 1, conducting steel ring
1 bottom is equipped with conductive sheet 2;The thermally conductive pressure transmission mechanism includes the composite tube 9 intracavitary positioned at each synthesis of pyrophyllite, composite tube 9
Top, bottom blocked by thermally conductive sheet, 2 bottom surface of conductive sheet recline seven thermally conductive sheets 8 top surface setting;The thermally conductive sheet 8 and composite tube 9
Using graphite compression moulding.
Embodiment 6
The present embodiment is that the thermally conductive sheet and composite tube are suppressed using the mixture of graphite and catalyst with the difference of embodiment 1
Molding.
Embodiment 7
The present embodiment is that the thermally conductive sheet and composite tube are suppressed using the mixture of graphite and catalyst with the difference of embodiment 2
Molding.
Embodiment 8
The present embodiment is that the thermally conductive sheet and composite tube are suppressed using the mixture of graphite and catalyst with the difference of embodiment 3
Molding.
Embodiment 9
The present embodiment is that the thermally conductive sheet and composite tube are suppressed using the mixture of graphite and catalyst with the difference of embodiment 4
Molding.
Claims (8)
1. a kind of sintering equipment of superhard material, pyrophyllite, heating mechanism and thermally conductive pressure transmission mechanism including offering synthesis chamber,
It is characterized in that, the heating mechanism is set to pyrophyllite synthesis chamber inner upper, the thermally conductive pressure transmission mechanism includes being located at leaf
Alabaster synthesizes intracavitary composite tube, and synthesis tube top, bottom are blocked by thermally conductive sheet.
2. the sintering equipment of superhard material as described in claim 1, which is characterized in that the synthesis chamber of the pyrophyllite is at least
Two, and the corresponding composite tube of each synthesis chamber and corresponding thermally conductive sheet.
3. the sintering equipment of superhard material as described in claim 1, which is characterized in that the heating mechanism is conducting steel ring,
Conducting steel ring bottom be equipped with conductive sheet, conductive sheet bottom surface recline thermally conductive sheet top surface setting.
4. the sintering equipment of superhard material as claimed in claim 2, which is characterized in that the thermally conductive sheet and composite tube use stone
Black compression moulding.
5. the sintering equipment of superhard material as claimed in claim 2, which is characterized in that the thermally conductive sheet and composite tube use stone
The mixture compression moulding of ink and catalyst.
6. the application method of the sintering equipment of any superhard material of claim 1-5, which is characterized in that steps are as follows:
1) mixture of graphite/graphite and catalyst is pressed into composite tube and thermally conductive sheet first, it will be on composite tube and pyrophyllite
Then corresponding synthesis cavity gap cooperation is packed into after the raw material of synthesizing superhard material into composite tube and blocks synthesis using thermally conductive sheet
Pipe open top;
2) conducting steel ring is crimped into thermally conductive sheet, and sintering equipment is placed in the environment of 3-20 Gpa, conducting steel ring energization is made
The synthesis chamber internal temperature for obtaining sintering equipment reaches 1000-3000 DEG C and carries out the no less than sintering of 1min.
7. the application method of the sintering equipment of superhard material as claimed in claim 6, which is characterized in that the raw material is super
Hard list/polycrystalline material or superhard list/polycrystalline material and alloy substrate.
8. the application method of the sintering equipment of superhard material as claimed in claim 7, which is characterized in that the superhard monocrystalline material
Material is single-crystal diamond powder or CBN powder, and the superhard polycrystalline material is polycrystalline diamond.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114669243A (en) * | 2022-04-20 | 2022-06-28 | 中国有色桂林矿产地质研究院有限公司 | Pressure transmission device for superhard composite material |
CN114768681A (en) * | 2022-04-20 | 2022-07-22 | 中国有色桂林矿产地质研究院有限公司 | Pressure transmission device for superhard composite material |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN114669243A (en) * | 2022-04-20 | 2022-06-28 | 中国有色桂林矿产地质研究院有限公司 | Pressure transmission device for superhard composite material |
CN114768681A (en) * | 2022-04-20 | 2022-07-22 | 中国有色桂林矿产地质研究院有限公司 | Pressure transmission device for superhard composite material |
CN114669243B (en) * | 2022-04-20 | 2023-01-03 | 中国有色桂林矿产地质研究院有限公司 | Pressure transmission device for superhard composite material |
CN114768681B (en) * | 2022-04-20 | 2024-05-28 | 中国有色桂林矿产地质研究院有限公司 | Pressure transmission device for superhard composite material |
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