CN202087307U - Axial pressurizing diamond synthesis block - Google Patents
Axial pressurizing diamond synthesis block Download PDFInfo
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- CN202087307U CN202087307U CN201120132104XU CN201120132104U CN202087307U CN 202087307 U CN202087307 U CN 202087307U CN 201120132104X U CN201120132104X U CN 201120132104XU CN 201120132104 U CN201120132104 U CN 201120132104U CN 202087307 U CN202087307 U CN 202087307U
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- pyrophyllite
- graphite
- graphite post
- pressure
- synthesis block
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Abstract
The utility model discloses an axial pressurizing diamond synthesis block, comprising a graphite column, conductive steel coils at two ends of the graphite column and pyrophyllite bumps at the periphery of the graphite column and the conductive steel coils, wherein pyrophyllite and dolomite composite filling are filled in the conductive steel coils, a heating element is arranged at the periphery of the graphite column, the graphite column consists of two half graphite columns with abutted end surfaces, and a pyrophyllite sheet is arranged between the butting end surfaces of the two half graphite columns. An axial pressurizing assembling mode is adopted, and the structure is simple; as the pyrophyllite has good pressure transferring performance, the pyrophyllite sheet can transfer pressure to two ends from the middle under the conditions of super high temperature and high pressure, the pyrophyllite sheet can effectively make up the insufficient pressure in the middle of the synthesis block, and the pressure in the synthesis block can be distributed uniformly, so as to prevent the graphite column from being weak inside; and the axial pressurizing diamond synthesis block is safe and reliable, the yield and quality of products can be greatly improved, and the crystal proportion of the diamond products is improved to about 35 percent from 30 percent.
Description
Technical field
The utility model belongs to the superhard material synthesis technical field, particularly a kind of axial supercharging diamond synthesis block.
Background technology
In the synthetic field of superhard material, the synthetic piece under the superhigh-temperature and-pressure condition is the insulation component of the graphite post made by graphite and catalyst mixed powder, graphite post periphery and heating element heater, the conducting steel ring at graphite post two ends, the blocks that the pressure transmission sealing medium assembles according to certain way.Concrete assembling mode is: assembling successively from outside to inside, peripheral pyrophyllite and the dolomite complex media of adopting is as the pressure transmission encapsulant, the conducting steel ring heating of switching on is adopted at two ends, conducting steel ring closely contacts with the heating element heater of inboard, make heating element heater heating itself by conducting steel ring during energising, insulation component through the inboard closely contact of heating element heater reaches heat and the inboard graphite post that closely contacts of insulation component then, makes graphite and catalyst be converted into diamond under the superhigh-temperature and-pressure condition.
From the assembling mode of synthetic piece, under the superhigh-temperature and-pressure condition, the regularity of distribution of pressure is in the graphite post: in axial direction, the pressure at two ends height, intermediate pressure is low; Radially, peripheral pressure height, internal pressure is low, and the pressure in graphite post centre is minimum.Therefore, synthetic piece is more little, and its each site pressure gradient is more little, yields poorly but single is synthetic, and production efficiency is low, deficiency in economic performance; Synthetic piece is big more, and its each site pressure gradient is just big more, because the synthetic output of barometric gradient ambassador single does not obviously improve, quality but obviously descends.
In recent years along with the continuous progress of technical merit, the synthetic cavity of superhard material industry cubic hinge press synthesis device diamond synthesis enlarges rapidly, synthetic piece is big, cause its each site pressure gradient big, the pressure distribution situation that the graphite post presents from outside to inside is for more and more littler, the pressure distribution inequality, thus cause in the graphite post empty.The interior empty situation of synthetic piece makes diamond particles air entrapment, the impurity of generation many easily, and defective is many, and particle is little, has a strong impact on adamantine product yield and quality.
If raising synthesis pressure simply, then can cause the peripheral pressure height of graphite post, make the diamond of peripheral growth become glomerocryst, and can directly have influence on service life of cubic hinge press synthesis device and auxiliary accessories thereof, severe patient directly causes the equipment blast of rupturing under HTHP, not only improve production cost greatly, but also had certain potential safety hazard.Empty problem in the graphite rod, thus the service life of cubic hinge press synthesis device and each auxiliary accessories and product, the quality of diamond product improved.
The utility model content
The purpose of this utility model provide a kind of simple in structure, stressed evenly, can effectively prevent axial supercharging diamond synthesis block empty, safe and reliable in the graphite post.
For achieving the above object, the technical solution of the utility model is: a kind of axial supercharging diamond synthesis block, comprise the conducting steel ring at graphite post, graphite post two ends and the pyrophyllite in lumps of graphite post and conducting steel ring periphery, be filled with pyrophyllite and dolomite compounded mix in the conducting steel ring, graphite post periphery is provided with heating element heater, described graphite post is made of two graphite post half blocks of end face butt joint, is provided with the pyrophyllite sheet between the graphite post half block butt joint end face.
Described pyrophyllite sheet and graphite post half block end face equal and opposite in direction.
Be provided with insulation component between described heating element heater and the graphite post half block.
Compared with prior art, the utility model has the advantages that:
1, the graphite post of synthetic piece is made of two graphite post half blocks of end face butt joint, be provided with the pyrophyllite sheet between the graphite post half block butt joint end face, form axial supercharging assembling mode, simple in structure, because the pyrophyllite pressure transmission is functional, the pyrophyllite sheet can play the effect of pressure transmission from the middle to both ends under the superhigh-temperature and-pressure condition, the pyrophyllite sheet can effectively remedy synthetic piece middle part insufficient pressure, synthetic piece internal pressure is evenly distributed, prevent in the graphite post empty, safe and reliable, can improve product yield and quality greatly, the excellent brilliant ratio of diamond product is brought up to about 35% from 30%.
2, the utility model can prolong the service life of cubic hinge press synthesis device and auxiliary accessories thereof, reduces synthetic cost, and is safe and reliable.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Axial supercharging diamond synthesis block as shown in Figure 1, it comprises the conducting steel ring 2 at graphite post, graphite post two ends and the pyrophyllite in lumps 1 of graphite post and conducting steel ring 2 peripheries, the graphite post is made of two graphite post half blocks 5 of end face butt joint, be provided with pyrophyllite sheet 6 between the graphite post half block 5 butt joint end faces, the end face equal and opposite in direction of pyrophyllite sheet 6 and graphite post half block 5, graphite post half block 5 is formed by graphite and the compacting of catalyst powder.Be filled with pyrophyllite and dolomite compounded mix 7 in the conducting steel ring 2, conducting steel ring 2 is arranged on graphite post half block 5 outer ends, and pyrophyllite in lumps 1 is arranged on the periphery of graphite post half block 5 and conducting steel ring 2.Be provided with heating element heater in graphite post half block 5 peripheries, heating element heater is from outside to inside to 5 heat conduction of graphite post half block, and heating element heater constitutes by being wrapped in heating tube 3 on graphite post half block 5 outer peripheral faces and the heating plate 8 on graphite post half block 5 outer faces.Between heating element heater and graphite post half block 5, be provided with insulation component 4.
During the utility model assembling: at first a graphite post half block 5 is put in the insulation component 4, then on graphite post half block 5 upper surfaces, placed pyrophyllite sheet 6, place another graphite post half block 5 then in insulation component 4; Then graphite post half block 5, pyrophyllite sheet 6 are put in the heating element heater with insulation component 4 one, again it all are positioned in the pyrophyllite in lumps 1; At last put into conducting steel ring 2, thereby form axial supercharging diamond synthesis block at the two ends of pyrophyllite in lumps 1.
Claims (3)
1. axial supercharging diamond synthesis block, comprise the conducting steel ring at graphite post, graphite post two ends and the pyrophyllite in lumps of graphite post and conducting steel ring periphery, be filled with pyrophyllite and dolomite compounded mix in the conducting steel ring, graphite post periphery is provided with heating element heater, it is characterized in that: described graphite post is made of two graphite post half blocks of end face butt joint, is provided with the pyrophyllite sheet between the graphite post half block butt joint end face.
2. axial supercharging diamond synthesis block as claimed in claim 1 is characterized in that: described pyrophyllite sheet and graphite post half block end face equal and opposite in direction.
3. axial supercharging diamond synthesis block as claimed in claim 1 or 2 is characterized in that: be provided with insulation component between described heating element heater and the graphite post half block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120132104XU CN202087307U (en) | 2011-04-29 | 2011-04-29 | Axial pressurizing diamond synthesis block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120132104XU CN202087307U (en) | 2011-04-29 | 2011-04-29 | Axial pressurizing diamond synthesis block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202087307U true CN202087307U (en) | 2011-12-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120132104XU Expired - Fee Related CN202087307U (en) | 2011-04-29 | 2011-04-29 | Axial pressurizing diamond synthesis block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202087307U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759239A (en) * | 2015-03-26 | 2015-07-08 | 河南四方达超硬材料股份有限公司 | Synthesis method and synthesis cavity of large-diameter polycrystalline diamond composite sheet |
| CN115041098A (en) * | 2022-07-19 | 2022-09-13 | 开封贝斯科超硬材料有限公司 | Synthesis method and synthesis block of millimeter-scale cubic boron nitride |
-
2011
- 2011-04-29 CN CN201120132104XU patent/CN202087307U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759239A (en) * | 2015-03-26 | 2015-07-08 | 河南四方达超硬材料股份有限公司 | Synthesis method and synthesis cavity of large-diameter polycrystalline diamond composite sheet |
| CN115041098A (en) * | 2022-07-19 | 2022-09-13 | 开封贝斯科超硬材料有限公司 | Synthesis method and synthesis block of millimeter-scale cubic boron nitride |
| CN115041098B (en) * | 2022-07-19 | 2023-09-05 | 开封贝斯科超硬材料有限公司 | Synthesis method and synthesis block of millimeter-level cubic boron nitride |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20160429 |