CN202594786U - Heating device for synthesizing cubic boron nitride - Google Patents
Heating device for synthesizing cubic boron nitride Download PDFInfo
- Publication number
- CN202594786U CN202594786U CN 201220213955 CN201220213955U CN202594786U CN 202594786 U CN202594786 U CN 202594786U CN 201220213955 CN201220213955 CN 201220213955 CN 201220213955 U CN201220213955 U CN 201220213955U CN 202594786 U CN202594786 U CN 202594786U
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- boron nitride
- cubic boron
- graphite
- synthesis
- insulating trip
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Abstract
The utility model discloses a heating device for synthesizing cubic boron nitride. The heating device comprises a pyrophyllite pressure transmitting block with a central cavity, wherein conductive steel rings, metal protection sheets, graphite sheets and graphite heating sheets are arranged at the two ends of the central cavity of the pyrophyllite pressure transmitting block peer to peer in sequence; and an insulation sheet is added between each graphite sheet and each graphite heating sheet. By using the device, a heat preservation sealing layer is formed and the temperature is totally wrapped up so that the synthesis temperatures realize the maximum effect of only entering, thus increasing the synthesis temperatures at the two ends, growing high-quality cubic boron nitride, minimizing the synthesis temperature ladder each time, ensuring consistency of the synthesis effect each time and achieving the aims of increasing synthesis yield per unit and growing high-quality cubic boron nitride.
Description
Technical field
The utility model relates to a kind of superhard material processing unit (plant), particularly a kind of heating unit of synthesizing cubic boron nitride.
Background technology
Cubic boron nitride is to be raw material with the SP 1, utilizes under the HTHP effect to form, and is especially very responsive to synthesis temperature.In the synthetic field of HTHP, high pressure realizes that through large pressing machine hot conditions then is to lean on the graphite heating body in the high pressure chest to accomplish through big electric current; The technology of present domestic synthesizing cubic boron nitride is: with being pressed into excellent column behind SP 1 and the catalyst proportional mixing, in the carbon tube of packing into, heating piece and metal protection sheet are being put in two ends; Perhaps after insulating trip is packed at the carbon tube two ends into, put heating piece and metal protection sheet again, and then in the synthetic chamber of the agalmatolite of packing into, two ends refill conducting steel ring; On six-plane piercer, realize growth conditions through HTHP; In this package technique,, be difficult to grow fine cubic boron nitride product because the two ends heat insulation effect is relatively poor; The cubic boron nitride skewness also is that product production is a greater impact when influencing quality product.
Summary of the invention
In order to solve the problem of above-mentioned existence, the utility model provides a kind of heating unit of synthesizing cubic boron nitride.
In order to realize above-mentioned target; The technical scheme that the utility model adopted is: a kind of heating unit of synthesizing cubic boron nitride, comprise the agalmatolite pressure transmission piece of being with lumen, and the interior two ends of the cavity of agalmatolite pressure transmission piece equity successively are provided with conducting steel ring, metal protection sheet, graphite flake and graphite heating sheet; Set up one deck insulating trip between described graphite flake and the graphite heating sheet; Described insulating trip is circular, and the centre is provided with circular hole, fills the graphite post in the circular hole.The diameter of circular hole is 1/4 of an insulating trip diameter in the middle of the described insulating trip, and described insulating trip material is quartzy.
Compared with prior art, the beneficial effect of the utility model is: adopt such scheme, form a thermal-insulating sealing layer; Fully temperature is wrapped, make synthesis temperature realize maximized only import but no export effect, thereby improve the two ends synthesis temperature; Grow fine cubic boron nitride quality; Make each synthesis temperature ladder narrow down to minimum, guarantee that each synthetic effect is consistent, reach the purpose that improves synthetic per unit area yield and growth high-quality cubic boron nitride quality.
Description of drawings
Fig. 1 is the structural representation of the heating unit of a kind of synthesizing cubic boron nitride of the utility model.
Embodiment
Below in conjunction with accompanying drawing and concrete embodiment the utility model is done and to be further described:
As shown in Figure 1; The heating unit of synthesizing cubic boron nitride comprises the agalmatolite pressure transmission piece 1 of being with lumen, and the cavity 7 interior two ends of agalmatolite pressure transmission piece 1 equity successively are provided with conducting steel ring 2, metal protection sheet 3, graphite flake 4 and graphite heating sheet 6; Set up one deck insulating trip 5 between described graphite flake 4 and the graphite heating sheet 6; Described insulating trip 5 is circular, and the centre is provided with circular hole, fills graphite post 8 in the circular hole.The degree of depth of circular hole is 1/2 of an insulating trip radius in the middle of the described insulating trip 5, and described insulating trip 5 materials are quartzy.
The principle of work of the utility model is following: at original graphite flake 4 and the graphite heating sheet 6 middle insulating trips 5 of setting up, form the thermal-insulating sealing layer.
The technical scheme of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology distortion of making according to the technical scheme of the utility model all falls within the protection domain of the utility model.
Claims (4)
1. the heating unit of a synthesizing cubic boron nitride; Comprise the agalmatolite pressure transmission piece of being with lumen; The interior two ends of the cavity of agalmatolite pressure transmission piece equity successively are provided with conducting steel ring, metal protection sheet, graphite flake and graphite heating sheet, it is characterized in that: set up one deck insulating trip between described graphite flake and the graphite heating sheet.
2. the heating unit of synthesizing cubic boron nitride according to claim 1 is characterized in that: described insulating trip is for circular, and the centre is provided with circular hole, fills the graphite post in the circular hole.
3. the heating unit of synthesizing cubic boron nitride according to claim 1 is characterized in that: the diameter of circular hole is 1/4 of an insulating trip diameter in the middle of the described insulating trip.
4. the heating unit of synthesizing cubic boron nitride according to claim 1 is characterized in that: described insulating trip material is for quartzy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220213955 CN202594786U (en) | 2012-05-14 | 2012-05-14 | Heating device for synthesizing cubic boron nitride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220213955 CN202594786U (en) | 2012-05-14 | 2012-05-14 | Heating device for synthesizing cubic boron nitride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202594786U true CN202594786U (en) | 2012-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220213955 Expired - Fee Related CN202594786U (en) | 2012-05-14 | 2012-05-14 | Heating device for synthesizing cubic boron nitride |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202594786U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112250082A (en) * | 2020-10-26 | 2021-01-22 | 燕山大学 | Transition metal compound and preparation method thereof |
| WO2023193366A1 (en) * | 2022-04-07 | 2023-10-12 | 南方科技大学 | Testing device |
-
2012
- 2012-05-14 CN CN 201220213955 patent/CN202594786U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112250082A (en) * | 2020-10-26 | 2021-01-22 | 燕山大学 | Transition metal compound and preparation method thereof |
| WO2023193366A1 (en) * | 2022-04-07 | 2023-10-12 | 南方科技大学 | Testing device |
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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: 20121212 Termination date: 20160514 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |