CN202061600U - Multi-element doctor cap conductive steel ring - Google Patents
Multi-element doctor cap conductive steel ring Download PDFInfo
- Publication number
- CN202061600U CN202061600U CN2011200909355U CN201120090935U CN202061600U CN 202061600 U CN202061600 U CN 202061600U CN 2011200909355 U CN2011200909355 U CN 2011200909355U CN 201120090935 U CN201120090935 U CN 201120090935U CN 202061600 U CN202061600 U CN 202061600U
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- Prior art keywords
- pyrophyllite
- steel ring
- dolomite
- ring
- thickness
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Abstract
The utility model discloses a multi-element doctor cap conductive steel ring, which comprises a doctor cap steel ring, wherein a pyrophyllite ring and a dolomite and water-free pyrophyllite composite ring are sleeved on the doctor cap steel ring from top to bottom, and a pyrophyllite core and a dolomite and water-free pyrophyllite composite core are filled in the doctor cap steel ring from top to bottom. When the conductive steel ring is used for diamond combining operation, the phenomenon of locally high temperature can be obviously eliminated, and a uniform and stable pressure and temperature field can be provided for the growth of diamond.
Description
Technical field
The utility model belongs to the diamond synthesis technical field, particularly a kind of polynary doctorial hat's conducting steel ring.
Background technology
What domestic diamond synthesis mainly adopted is static pressure catalyst method, the indirect mode assembled block of static pressure catalyst method under superhigh-temperature and-pressure (synthetic piece) is by the used raw material graphite post of diamond synthesis, i.e. graphite and catalyst mixed powder and be positioned at the conducting steel ring at graphite post two ends and blocks that heating element heater, insulation component, the pressure transmission sealing medium pyrophyllite in lumps of graphite post periphery assemble according to certain way.The indirect assembling mode is 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 its inboard heating element heater, make heating element heater heating itself by conducting steel ring during energising, pass through then and the inboard insulation component that closely contacts of heating element heater, see through insulation component heat is reached and the inboard graphite post that closely contacts of insulation component, make graphite under superhigh-temperature and-pressure, be converted into diamond.The conducting steel ring at synthetic piece two ends is: the synthetic piece under the HTHP adopts metal (ferroalloy etc.) material of doctorial hat's shape to heat as the graphite post of conductor to synthetic piece inside at two ends, make graphite be converted into diamond under HTHP.Conducting steel ring is placed on the two ends of pyrophyllite in lumps, plays the effect of conduction heat transfer, pressure transmission, protection carbide alloy.Packaging technology is: the conducting steel ring in the synthetic piece, form by doctorial hat's steel ring and pyrophyllite ring, dolomite core; As shown in Figure 1, during assembling, pyrophyllite ring 3 and dolomite core 2 are sleeved on doctorial hat's steel ring 1, form conducting steel ring.Utilize indirect assembling mode diamond synthesis, because heat transfer type is inwardly conducted heat by peripheral heating tube, it is uniform and stable to conduct heat, if still adopt former conducting steel ring mode, certainly will cause local temperature height in the middle of the two ends, and the pyrophyllite of doctorial hat's steel ring periphery undergoes phase transition under HTHP, promptly under 5.5 ~ 6.0Gpa of diamond suitable growth condition, temperature is when 1620 ~ 1720K, the crystallization water in the pyrophyllite impels pyrophyllite to be phase-changed into kyanite to add coesite, make the pyrophyllite volume contraction reach itself 12.6%.This phase transformation and the volume contraction that is accompanied by cause the high pressure chest internal pressure to descend, and have a strong impact on the diamond film environment in the synthetic chamber, cause unstable product quality.
The utility model content
The purpose of this utility model provides a kind of polynary doctorial hat's conducting steel ring that can effectively improve the pressure and temp field of indirect assembling mode diamond synthesis.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of polynary doctorial hat's conducting steel ring, comprise doctorial hat's steel ring, be set with pyrophyllite ring, dolomite and anhydrous minute pyrophyllite complex loop on doctorial hat's steel ring from top to bottom, doctorial hat's steel ring inside is filled with pyrophyllite core, dolomite and anhydrous minute pyrophyllite composite core from top to bottom.
The pyrophyllite ring thickness is identical with pyrophyllite core thickness, dolomite is identical with anhydrous minute pyrophyllite composite core thickness with dolomite with anhydrous minute pyrophyllite complex loop thickness, the pyrophyllite ring thickness is 2:1 with the ratio of dolomite and anhydrous minute pyrophyllite complex loop thickness, and pyrophyllite core thickness is 2:1 with the ratio of dolomite and anhydrous minute pyrophyllite composite core thickness.
The beneficial effect that brings in the utility model is: 1. dolomite and anhydrous minute pyrophyllite complex loop and anhydrous minute pyrophyllite composite core evenly are sleeved on the pyrophyllite ring and pyrophyllite core of doctorial hat's steel ring, because its thin thickness and radial distribution are even, with improve before compare: can obviously eliminate the high phenomenon of local temperature, can provide one evenly and the pressure stable temperature field for growth of diamond; 2. after using dolomite and anhydrous minute pyrophyllite to mix, be sleeved on the pyrophyllite of doctorial hat's steel ring, the dolomite thermal coefficient of expansion is big, is 3.4 times of pyrophyllite, and not moisture, does not undergo phase transition under the HTHP; The pyrophyllite of fully dehydrating can stop the pyrophyllite of not dehydration and undergo phase transition under HTHP owing to there is constitution water; Triplicity can obviously improve the synthetic cavity internal pressure, the covert reduction synthetic outside use gauge pressure, the service life of improving synthesis device greatly.
Description of drawings
Fig. 1 is existing doctorial hat's conducting steel ring structural representation;
Fig. 2 is the utility model structural representation.
The specific embodiment
As shown in Figure 2, a kind of polynary doctorial hat's conducting steel ring, comprise doctorial hat's steel ring 1, be set with pyrophyllite ring 3, dolomite and anhydrous minute pyrophyllite complex loop 5 on doctorial hat's steel ring 1 from top to bottom, doctorial hat's steel ring 1 inside is filled with pyrophyllite core 4, dolomite and anhydrous minute pyrophyllite composite core 6 from top to bottom.Pyrophyllite ring 3 thickness are identical with pyrophyllite core 4 thickness, dolomite is identical with anhydrous minute pyrophyllite composite core 6 thickness with dolomite with anhydrous minute pyrophyllite complex loop 5 thickness, pyrophyllite ring 3 thickness are 2:1 with the ratio of dolomite and anhydrous minute pyrophyllite complex loop 5 thickness, and pyrophyllite core 4 thickness are 2:1 with the ratio of dolomite and anhydrous minute pyrophyllite composite core 6 thickness.
When the utility model is made, pyrophyllite in powder is added the binding agent bath of glass be pressed into pyrophyllite ring 3, internal diameter equals the external diameter of doctorial hat's steel ring wall 1-2, and external diameter equals the outer warp of doctorial hat's steel ring sheet 1-1, is sleeved on doctorial hat's steel ring 1; Pyrophyllite is heated 1h at 1223K, make its fully dehydrating, add the binding agent bath of glass again after the dolomite dust that adds equal weight afterwards is mixed and be pressed into dolomite and anhydrous minute pyrophyllite complex loop 5, internal diameter equals the external diameter of doctorial hat's steel ring wall 1-2, external diameter equals the external diameter of doctorial hat's steel ring sheet 1-1, is sleeved on the pyrophyllite ring 3 on doctorial hat's steel ring 1; Both thickness equal the thickness of doctorial hat's steel ring sheet to the steel ring bottom.Pyrophyllite in powder is added the binding agent bath of glass be pressed into pyrophyllite core 4, cylindrical equals the internal diameter of doctorial hat's steel ring wall 1-2, is filled in the internal diameter of doctorial hat's steel ring 1; Pyrophyllite is heated 1h at 1223K, make its fully dehydrating, add the binding agent bath of glass again after the dolomite dust that adds equal weight afterwards is mixed and be pressed into dolomite and anhydrous minute pyrophyllite composite core 6, cylindrical equals the internal diameter of doctorial hat's steel ring wall 1-2, is filled on the pyrophyllite core in doctorial hat's steel ring 1 internal diameter; Dolomite and anhydrous minute pyrophyllite complex loop and anhydrous minute pyrophyllite composite core evenly are sleeved on the pyrophyllite ring and pyrophyllite core of doctorial hat's steel ring, because its thin thickness and radial distribution are even, can obviously eliminate the high phenomenon of local temperature, can provide an even and pressure stable temperature field for growth of diamond.
Claims (2)
1. polynary doctorial hat's conducting steel ring, comprise doctorial hat's steel ring, it is characterized in that, be set with pyrophyllite ring, dolomite and anhydrous minute pyrophyllite complex loop on doctorial hat's steel ring from top to bottom, doctorial hat's steel ring inside is filled with pyrophyllite core, dolomite and anhydrous minute pyrophyllite composite core from top to bottom.
2. polynary doctorial hat's conducting steel ring as claimed in claim 1, it is characterized in that, the pyrophyllite ring thickness is identical with pyrophyllite core thickness, dolomite is identical with anhydrous minute pyrophyllite composite core thickness with dolomite with anhydrous minute pyrophyllite complex loop thickness, the pyrophyllite ring thickness is 2:1 with the ratio of dolomite and anhydrous minute pyrophyllite complex loop thickness, and pyrophyllite core thickness is 2:1 with the ratio of dolomite and anhydrous minute pyrophyllite composite core thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200909355U CN202061600U (en) | 2011-03-31 | 2011-03-31 | Multi-element doctor cap conductive steel ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200909355U CN202061600U (en) | 2011-03-31 | 2011-03-31 | Multi-element doctor cap conductive steel ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202061600U true CN202061600U (en) | 2011-12-07 |
Family
ID=45055482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200909355U Expired - Fee Related CN202061600U (en) | 2011-03-31 | 2011-03-31 | Multi-element doctor cap conductive steel ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202061600U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110240464A (en) * | 2019-04-18 | 2019-09-17 | 河南飞孟金刚石工业有限公司 | Conducting steel ring material core formula |
-
2011
- 2011-03-31 CN CN2011200909355U patent/CN202061600U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110240464A (en) * | 2019-04-18 | 2019-09-17 | 河南飞孟金刚石工业有限公司 | Conducting steel ring material core formula |
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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: 20111207 Termination date: 20150331 |
|
| EXPY | Termination of patent right or utility model |