CN201768538U - Diamond synthesizing column with bidirectional pressure - Google Patents
Diamond synthesizing column with bidirectional pressure Download PDFInfo
- Publication number
- CN201768538U CN201768538U CN2010202753031U CN201020275303U CN201768538U CN 201768538 U CN201768538 U CN 201768538U CN 2010202753031 U CN2010202753031 U CN 2010202753031U CN 201020275303 U CN201020275303 U CN 201020275303U CN 201768538 U CN201768538 U CN 201768538U
- Authority
- CN
- China
- Prior art keywords
- synthetic
- diamond
- column
- pressure
- post
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 26
- 239000010432 diamond Substances 0.000 title claims abstract description 26
- 230000002194 synthesizing effect Effects 0.000 title claims abstract description 15
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 12
- 238000003825 pressing Methods 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 abstract description 16
- 238000003786 synthesis reaction Methods 0.000 abstract description 16
- 230000005540 biological transmission Effects 0.000 description 15
- 238000010438 heat treatment Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 239000010459 dolomite Substances 0.000 description 6
- 229910000514 dolomite Inorganic materials 0.000 description 6
- 238000009413 insulation Methods 0.000 description 6
- 229910052903 pyrophyllite Inorganic materials 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical compound C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 1
- 229910001573 adamantine Inorganic materials 0.000 description 1
- INJRKJPEYSAMPD-UHFFFAOYSA-N aluminum;silicic acid;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O INJRKJPEYSAMPD-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010443 kyanite Substances 0.000 description 1
- 229910052850 kyanite Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
The utility model discloses a diamond synthesizing column with bidirectional pressure, which belongs to the technical field of diamond synthesis. The synthesizing column is divided into an upper part and a lower part, and vertical slots are respectively arranged upwards and downwards in the middle of the combination part of the synthesized column. By utilizing the diamond synthesizing column with bidirectional pressure to synthesize the diamond, the synthesizing pressure can be lowered, the proportion of inferior products can be reduced, and the synthesizing effect is good.
Description
Technical field
The utility model belongs to the diamond synthesis technical field, particularly a kind of bidirectional pressing diamond synthesizing column.
Background technology
Diamond synthesis block under the superhigh-temperature and-pressure (as shown in Figure 1) is by the synthetic post 5 of the used raw material of diamond synthesis, i.e. graphite and catalyst mixed powder and be positioned at the conducting steel ring 1 at synthetic post 5 two ends and blocks that heating element heater 3, insulation component 4, the pressure transmission sealing medium 2 of synthetic post 5 peripheries assemble according to certain way.Assembling mode is from outside to inside: the peripheral pressure transmission sealing medium 2 that adopts is as the pressure transmission encapsulant, conducting steel ring 1 heating of switching on is adopted at two ends, conducting steel ring 1 closely contacts with its inboard heating element heater 3, by conducting steel ring heating element heater 3 itself is generated heat during energising, pass through then and the heating element heater 3 inboard insulation components 4 that closely contact, see through insulation component 4 heat is reached and the insulation component 4 inboard synthetic posts 5 that closely contact, make graphite under superhigh-temperature and-pressure, be converted into diamond.In building-up process, though the pyrophyllite as the pressure transmission sealing medium has good pressure transmission performance, itself can undergo phase transition under superhigh-temperature and-pressure, and promptly the crystallization water in the pyrophyllite can impel pyrophyllite to be phase-changed into kyanite to add coesite, volume contraction, the pressure transmission performance reduces greatly.Is the process that growth of diamond particles is grown up, is just needing to transmit sufficient pressure this moment and supplementing the nutrients and impel it to grow up that the reduction significantly of pressure transmission performance will cause the synthesis pressure transmission not entered in the later stage of diamond synthesis.Add in recent years the superhard material industry along with the continuous progress of technical merit, the synthetic cavity of cubic hinge press synthesis device diamond synthesis enlarges rapidly, from the assembling mode of synthetic piece, the pressure distribution situation that synthetic post presents from outside to inside is more and more littler (being the pressure distribution inequality), thereby causes interior void.Make diamond particles air entrapment, the impurity of generation many, defective is many, and particle is little, has a strong impact on adamantine product quality.If raising synthesis pressure simply, because pyrophyllite itself undergoes phase transition under superhigh-temperature and-pressure, produce volume contraction, the pressure transmission performance reduces greatly, and pressure passes not enter, and product quality can't obtain obvious variation, and can directly have influence on the service life of cubic hinge press synthesis device, severe patient directly causes the equipment blast of rupturing under HTHP, not only improved production cost greatly, but also has bigger potential safety hazard.
The utility model content
The purpose of this utility model provides and a kind ofly can reduce synthesis pressure, bidirectional pressing diamond synthesizing column that the pressure transmission performance is good.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is:
A kind of bidirectional pressing diamond synthesizing column, synthetic post are divided into up and down two parts, make progress respectively in the middle of the synthetic post binding site, to being arranged with vertical slot.
Synthetic post two parts up and down equates.
Groove is identical with synthetic post shapes and concentric with synthetic post.
The volume of groove accounts for 10%～50% of synthetic column volume.
In the utility model, synthetic post is divided into two parts up and down, make progress respectively in the middle of the synthetic post binding site, to being arranged with vertical slot, synthetic post two parts up and down equates, groove is identical with synthetic post shapes and concentric with synthetic post, the volume of groove account for synthetic column volume 10%～50% (volume is too small, and the counterpressure situation reduces; Volume is excessive, influence output), during assembling, fill pyrophillite and dolomite complex media in the groove, adopt such structure, synthetic post synthesizes when transforming under superhigh-temperature and-pressure, not only is subjected to six external carbide alloy applied forces, simultaneously since the pyrophillite that hollow part is filled and dolomite complex media thermal coefficient of expansion greatly and the pressure transmission performance good (thermal coefficient of expansion of dolomite is big, is 2.7 * 10
-5, do not undergo phase transition under the HTHP; The pressure transmission performance of pyrophyllite is good), when six carbide alloy are exerted pressure, the pyrophillite and the dolomite complex media expanded by heating of being filled in the groove, volume increases, add a fraction of pressure transmission, also begin to exert pressure to synthetic post, whole process is equivalent to the effect that synthetic each orientation of post all is subjected to two-way compacting.This effect not only can be subdued six external carbide alloy applied forces of a part, thereby prolongs the service life of cubic hinge press synthesis device, reduces synthesis pressure; And can make the suffered power uniformity in synthetic each orientation of post, and subdue empty situation in the synthetic post, thereby reduced the ratio of material inferior (junior diamond), improved the ratio of quality product.
Utilize the utility model to synthesize post, with 60 millimeters synthetic posts of diameter is example, guaranteeing under synthetic 300 carats of positive and negative 10 carats the situations of output of single: the diamond synthesis pressure is reduced to 51～54Mpa by 58 original～60Mpa, and material ratio inferior has dropped to 30%～35% by original 40%～45%.
Description of drawings
Fig. 1 is a diamond synthesis block structural representation in the prior art;
Fig. 2 is the diamond synthesis block structural representation that utilizes the utility model assembling.
The specific embodiment
As shown in Figure 2, a kind of bidirectional pressing diamond synthesizing column, synthetic post 6 are divided into two parts up and down, make progress respectively in the middle of synthetic post 6 binding sites, to being arranged with vertical slot 7.Synthetic post 6 about two parts equal.Groove 7 is identical with synthetic post 6 shapes and concentric with synthetic post 6.The volume of groove 7 accounts for 10%～50% of synthetic post 6 volumes.Fill pyrophillite and dolomite complex media 8 in the groove 7.The ratio of dolomite and pyrophillite is 1: 1～9: 1.Synthetic post 6 outside insulation components 4 closely contact with synthetic post 6, insulation component 4 outsides are heating element heater 3, synthetic post 6 two ends are conducting steel ring 1, are provided with pressure transmission sealing medium 2 between conducting steel ring 1 and the heating element heater 3, and conducting steel ring 1 outside is arranged with pressure transmission sealing medium 2.
Claims (4)
1. a bidirectional pressing diamond synthesizing column is characterized in that, synthetic post is divided into up and down two parts, makes progress respectively in the middle of the synthetic post binding site, to being arranged with vertical slot.
2. bidirectional pressing diamond synthesizing column as claimed in claim 1 is characterized in that, synthetic post two parts up and down equates.
3. bidirectional pressing diamond synthesizing column as claimed in claim 1 or 2 is characterized in that, groove is identical with synthetic post shapes and concentric with synthetic post.
4. bidirectional pressing diamond synthesizing column as claimed in claim 3 is characterized in that, the volume of groove accounts for 10%～50% of synthetic column volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202753031U CN201768538U (en) | 2010-07-29 | 2010-07-29 | Diamond synthesizing column with bidirectional pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202753031U CN201768538U (en) | 2010-07-29 | 2010-07-29 | Diamond synthesizing column with bidirectional pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201768538U true CN201768538U (en) | 2011-03-23 |
Family
ID=43748368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202753031U Expired - Fee Related CN201768538U (en) | 2010-07-29 | 2010-07-29 | Diamond synthesizing column with bidirectional pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201768538U (en) |
-
2010
- 2010-07-29 CN CN2010202753031U patent/CN201768538U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20160729 |