CN101007251A - Outer indirect heating diamond synthesis block - Google Patents
Outer indirect heating diamond synthesis block Download PDFInfo
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- CN101007251A CN101007251A CN 200610017366 CN200610017366A CN101007251A CN 101007251 A CN101007251 A CN 101007251A CN 200610017366 CN200610017366 CN 200610017366 CN 200610017366 A CN200610017366 A CN 200610017366A CN 101007251 A CN101007251 A CN 101007251A
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Abstract
The out indirect heating diamond synthetic block belongs to diamond synthetic technology field. It includes diamond synthetic volume; the two ends of the synthetic volume are equipped with compound conductive thermally insulated device, the outsides of synthetic volume and compound conductive thermally insulated device are equipped with sealing transmitting-pressure media; and the heating element, heat-transmitting element and isolated element are equipped between sealing transmitting-pressure media, compound conductive thermally insulated device and the synthetic volume from outer to inner sequentially. The compound conductive thermally insulated device includes conductive metallic disk and metallic cylinder which one end is connected with the disk and diameter is smaller, the cylinder is embedded with prefabricated insulating material cylinder, and the periphery of said cylinder is equipped with prefabricated insulating material cylinder closely. The synthetic diamond using the synthetic block in the invention is high in product, the factor of merit is high and cost of production is low.
Description
Technical field
The invention belongs to the diamond synthesis technical field, particularly a kind of outer indirect heating diamond synthesis block.
Background technology
The diamond synthesis block structure of using in the diamond building-up process as shown in Figure 1, comprise diamond synthesizing column 11, synthetic post 11 two ends are provided with composite conducting heat-proof device 1, the sealing medium cylinder 4 of synthetic post 11 and the sheathed embedded transmission medium cylinder 3 in composite conducting heat-proof device 1 outside, transmission medium cylinder 3 embed among the sealing medium cylinder 4 interior eaves.Should belong to direct-heating type by synthetic piece mode of heating, electric current itself generates heat by synthetic post 11.Adopt above-mentioned synthetic piece to carry out that diamond is synthetic to exist following technical problem: (1) required electric current is big, causes the energy consumption height, and the hammer consumption is big; (2) synthetic column temperature inhomogeneous-center height, peripheral low, cause diamond film inhomogeneous; (3) in the course of reaction along with synthetic column material changes, cause size of current to change, influence the stability of diamond film.
Summary of the invention
The outer indirect heating diamond synthesis block that provides a kind of synthetic effect good is provided the object of the invention
For reaching above-mentioned purpose, the present invention adopts following technical scheme: outer indirect heating diamond synthesis block, comprise diamond synthesizing column, synthetic post two ends are provided with the composite conducting heat-proof device, the synthetic post and the composite conducting heat-proof device outside are arranged with hermetical and pressure madium, are disposed with heater element, heat transfer insulation component and isolated component between hermetical and pressure madium and composite conducting heat-proof device and the synthetic post certainly outside to inside.
Heater element, heat transfer insulation component and isolated component are the pipe of closed at both ends.
Heater element is made up of the graphite disk at graphite pipe and covering pipe two ends; The heat transfer insulation component is formed by the alkaline earth oxide pipe fastening of two one end sealings; Isolated component is made up of the metal disk of metal circular tube and covering pipe.
The composite conducting heat-proof device comprises conducting metal disk and the metallic cylinder that an end joins with it and diameter is less, closely embeds prefabricated insulation material cylinder in the cylinder, and the cylinder periphery closely is arranged with prefabricated thermal insulation material cylinder.
Metal disk and metallic cylinder are for dividing body structure, and metallic cylinder one end closely contacts with metal disk.
The insulation material cylinder is made by the insulation material based on dolomite; The insulation material cylinder is by two-layer composition up and down, and the upper strata is made by the insulation material based on dolomite, and lower floor is made by pyrophillite.
Among the present invention, heater element, heat transfer element thickness are 1-5mm, and the heater element effect is a conductive exothermal, and the heat transfer element effect is to conduct heat and electric insulation.Isolated component thickness 0.1-1.0mm, its effect is to prevent that synthetic post from being polluted by foreign matter.Heater element, heat transfer insulation component and isolated component are the pipe of closed at both ends from a structural point, can adopt kinds of processes to process.For example, for heater element, available extrusion is made the graphite pipe, is formed at two ends covering graphite disk; Also can be wound into the graphite pipe, form at two ends covering soft graphite disk again with flexible graphite paper.For the heat transfer insulation component, can be processed into the alkaline earth oxide pipe earlier, form at two ends covering alkaline earth oxide disk again; The alkaline earth oxide pipe that also can directly be processed into two one end sealings fastens and forms.
In the composite conducting heat-proof device, each element is accurately processing respectively in advance, can reduce the component size error.Insulation cylinder and insulation cylinder adopt prefabricated component, and density of material is even, and global density improves, and volume contraction is little in the production, and the security of use improves greatly, and the diamond synthesis production accident reduces, and top hammer consumption reduces.It is main compound insulating material that dolomite is adopted on insulation material cylinder and insulation material cylinder upper strata, and good heat insulating can reduce the axial plane temperature difference of diamond synthetic rod; Insulation material cylinder lower floor adopts pyrophyllite material, pressure transmission intensity height, and above-mentioned measure helps diamond film.
Utilize the present invention to carry out diamond and synthesize, change the direct mode of heating in original inside into outside indirect mode, electric current no longer passes through synthetic post, but by peripheral heater element ecto-entad heat transfer.This mode of heating has changed the low inside and high outside situation of synthetic column temperature effectively, and internal and external temperature distributes and is tending towards evenly can significantly improving adamantine output and quality; Heating current reduces, and not only saves electric energy, the more important thing is the hammer consumption that has reduced hard alloy top hammer, and adamantine production cost is minimized; Effectively prevent the variation of heating current, helped the stable growth gem grade diamond; Being provided with of separation layer can prevent that synthetic post from being polluted by the material of outside, for diamond film provides a clean environment, and diamond synthesis purity height.
Utilizing the present invention to synthesize piece, is example with 38 millimeters synthetic posts of diameter, and the diamond per unit area yield is brought up to more than 80 carats by original 60 carats, and the gem grade diamond ratio is brought up to about 40% by original 20%～30%, and the diamond cost reduces about 30%.
The present invention is applicable to the various cubic hinge press that China diamond manufacturer uses (comprise traditional have cylinder press and novel no cylinder press), also is applicable to the belt type press that European and American countries extensively adopts.
Description of drawings
Fig. 1 is a diamond synthesis block structural representation in the prior art;
Fig. 2 is an outer indirect heating diamond synthesis block structural representation of the present invention.
The specific embodiment
As shown in Figure 2, outer indirect heating diamond synthesis block comprises diamond synthesizing column 11, synthetic post 11 two ends are provided with composite conducting heat-proof device 1, the synthetic post 11 and composite conducting heat-proof device 1 outside are arranged with hermetical and pressure madium 2, are disposed with heater element 13, heat transfer element 12 and isolated component 14 between hermetical and pressure madium 2 and composite conducting heat-proof device 1 and the synthetic post 11 certainly outside to inside.Heater element 13 is made up of the graphite disk 6 at graphite pipe 5 and covering pipe 5 two ends; Heat transfer element 12 is formed by alkaline earth oxide pipe 9 fastenings of two one end sealings; Isolated component 14 is made up of the metal disk 7 of metal circular tube 10 and covering pipe.Composite conducting heat-proof device 1 comprises conducting metal disk 16 and the metallic cylinder 15 that an end joins with it and diameter is less, closely embeds prefabricated insulation material cylinder 8 in the cylinder 15, and cylinder 15 peripheries closely are arranged with prefabricated thermal insulation material cylinder.Metal disk 16 is the branch body structure with metallic cylinder 15, and metallic cylinder 15 1 ends closely contact with metal disk 16.Insulation material cylinder 8 is made by the insulation material based on dolomite; The insulation material cylinder is by two- layer 17,18 forming up and down, and upper strata 17 is made by the insulation material based on dolomite, and lower floor 18 is made by pyrophillite.
Claims (6)
1, outer indirect heating diamond synthesis block, comprise diamond synthesizing column, synthetic post two ends are provided with the composite conducting heat-proof device, the synthetic post and the composite conducting heat-proof device outside are arranged with hermetical and pressure madium, it is characterized in that, be disposed with heater element, heat transfer insulation component and isolated component between hermetical and pressure madium and composite conducting heat-proof device and the synthetic post certainly outside to inside.
2, outer indirect heating diamond synthesis block as claimed in claim 1 is characterized in that, heater element, heat transfer insulation component and isolated component are the pipe of closed at both ends.
3, outer indirect heating diamond synthesis block as claimed in claim 2 is characterized in that, heater element is made up of the graphite disk at graphite pipe and covering pipe two ends; The heat transfer insulation component is formed by the alkaline earth oxide pipe fastening of two one end sealings; Isolated component is made up of the metal disk of metal circular tube and covering pipe.
4, as claim 1,2 or 3 described outer indirect heating diamond synthesis blocks, it is characterized in that, the composite conducting heat-proof device comprises conducting metal disk and the metallic cylinder that an end joins with it and diameter is less, closely embed prefabricated insulation material cylinder in the cylinder, the cylinder periphery closely is arranged with prefabricated thermal insulation material cylinder.
5, outer indirect heating diamond synthesis block as claimed in claim 4 is characterized in that, metal disk and metallic cylinder are for dividing body structure, and metallic cylinder one end closely contacts with metal disk.
6, outer indirect heating diamond synthesis block as claimed in claim 5 is characterized in that, the insulation material cylinder is made by the insulation material based on dolomite; The insulation material cylinder is by two-layer composition up and down, and the upper strata is made by the insulation material based on dolomite, and lower floor is made by pyrophillite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610017366 CN101007251A (en) | 2006-01-23 | 2006-01-23 | Outer indirect heating diamond synthesis block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610017366 CN101007251A (en) | 2006-01-23 | 2006-01-23 | Outer indirect heating diamond synthesis block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101007251A true CN101007251A (en) | 2007-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 200610017366 Pending CN101007251A (en) | 2006-01-23 | 2006-01-23 | Outer indirect heating diamond synthesis block |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102600766A (en) * | 2012-03-30 | 2012-07-25 | 常熟市怡华金刚石有限公司 | Method for synthesizing gem grade diamond by using cubic press |
| CN102600768A (en) * | 2012-03-30 | 2012-07-25 | 常熟市怡华金刚石有限公司 | Indirect heating-type synthesis assembly for high-temperature and high-pressure artificial single crystal synthesis by using cubic press |
| CN102806052A (en) * | 2012-08-28 | 2012-12-05 | 孙启奇 | Synthesis block for synthesizing artificial diamond |
| CN103399044A (en) * | 2013-07-29 | 2013-11-20 | 吉林大学 | Device and method for carrying out in-situ testing on transport properties of conductor materials at high temperature and high pressure |
| CN103801227A (en) * | 2012-11-12 | 2014-05-21 | 浙江蓝龙科技有限公司 | Artificial diamond graphite-pipe type heating structure |
| CN109079145A (en) * | 2018-08-30 | 2018-12-25 | 中南钻石有限公司 | A kind of composite polycrystal-diamond Synthetic block and its method for synthesizing composite polycrystal-diamond |
-
2006
- 2006-01-23 CN CN 200610017366 patent/CN101007251A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102600766A (en) * | 2012-03-30 | 2012-07-25 | 常熟市怡华金刚石有限公司 | Method for synthesizing gem grade diamond by using cubic press |
| CN102600768A (en) * | 2012-03-30 | 2012-07-25 | 常熟市怡华金刚石有限公司 | Indirect heating-type synthesis assembly for high-temperature and high-pressure artificial single crystal synthesis by using cubic press |
| CN102806052A (en) * | 2012-08-28 | 2012-12-05 | 孙启奇 | Synthesis block for synthesizing artificial diamond |
| CN103801227A (en) * | 2012-11-12 | 2014-05-21 | 浙江蓝龙科技有限公司 | Artificial diamond graphite-pipe type heating structure |
| CN103801227B (en) * | 2012-11-12 | 2016-05-04 | 浙江蓝龙科技有限公司 | A kind of diamond graphite tubular type heating arrangement |
| CN103399044A (en) * | 2013-07-29 | 2013-11-20 | 吉林大学 | Device and method for carrying out in-situ testing on transport properties of conductor materials at high temperature and high pressure |
| CN103399044B (en) * | 2013-07-29 | 2015-11-18 | 吉林大学 | The apparatus and method of in-situ test conductive species transport property under High Temperature High Pressure |
| CN109079145A (en) * | 2018-08-30 | 2018-12-25 | 中南钻石有限公司 | A kind of composite polycrystal-diamond Synthetic block and its method for synthesizing composite polycrystal-diamond |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |