CN1108184C - Filler of pressure-transferring medium sealed by pyrophyllite for artificially synthetic diamond - Google Patents
Filler of pressure-transferring medium sealed by pyrophyllite for artificially synthetic diamond Download PDFInfo
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- CN1108184C CN1108184C CN99111136A CN99111136A CN1108184C CN 1108184 C CN1108184 C CN 1108184C CN 99111136 A CN99111136 A CN 99111136A CN 99111136 A CN99111136 A CN 99111136A CN 1108184 C CN1108184 C CN 1108184C
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- pyrophyllite
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Abstract
The present invention relates to an additive of pyrophyllite sealing pressure-transfer media for artificial diamond, which belongs to sealing pressure-transfer media for superhard materials of high-temperature superhigh-pressure synthetic diamond, etc. In the present invention, a group of substances optionally selected from one of montmorillonite subfamily mineral powders, bauxite powders, chlorite powders, quartz powders and ferric oxide powders, or several kinds of montmorillonite subfamily mineral powders, bauxite powders, chlorite powders, quartz powders and brown iron oxide are homogeneously mixed and added to some ordinary and common pyrophyllite mineral powders to improve and change the performance of seal, pressure transfer, thermal insulation, etc. of the pyrophyllite mineral powders so that the pyrophyllite mineral powders become the sealing pressure-transfer medium. The additive solves the problem of resource shortage, reduces the cost, improves the thermal insulation performance, produces more high-strength diamond and is also capable of synthesizing the sealing pressure-transfer medium of other materials in the mode of high temperature and superhigh pressure.
Description
The present invention relates to a kind of diamond additive with the pyrophillite hermetical and pressure madium, it belongs to the hermetical and pressure madium of superhard material such as superhigh-pressure high-temp diamond synthesis.
Producing diamond pyrophillite hermetical and pressure madium at present, is that powder is molded, dries fixed by the hermetical and pressure madium pyrophillite breeze that can be used as the diamond synthesis auxiliary material and waterglass or polyvinyl alcohol allotment; Chen Wanxue writes, and machine tool office of country machinery committee, Chinese grinding materials and grinding tool industrial group publish " diamond synthesizing process " 114 pages and announced diamond synthesis pyrophyllite powder briquetting raw material proportioning: " pyrophyllite powder 83.4%, quartz sand 104%, waterglass 6-7% "; He ibidem 110 pages also discussed the hermetical and pressure madium pyrophillite should " have combination properties such as good pressure transmission, sealing, electrical insulating property, heat insulation heat-resisting quantity and machine-shaping.", said " pyrophyllite powder ", the hermetical and pressure madium pyrophillite breeze that has above-mentioned performance exactly, rather than some common pyrophillite breeze.Because some common pyrophillite does not possess above-mentioned performance, so though the pyrophillite mineral products resource of China occupies first of the world, the mineral deposit reaches hundreds of places, can be used in the hermetical and pressure madium pyrophillite of diamond synthesis, annotate volume as Song Xiang, it is described that whole nation geologic information office of Ministry of Geology and Mineral Resources publishes " mineral resources strategic analysis one pyrophillite " 88 pages: " Mentougou, Beijing pyrophyllite deposit is the place of production of the present unique production diamond blank of China ... ".The hermetical and pressure madium pyrophillite is because rare, and cost an arm and a leg, the general 15-80 of domestic some common pyrophillite unit is one ton at present, and then 416 hundred yuan one ton of hermetical and pressure madium pyrophillite is produced in the Mentougou, and external South Africa this watt of Derain produces the hermetical and pressure madium pyrophillite unexpectedly up to 1,000 dollars one ton.Hence one can see that hermetical and pressure madium pyrophillite, problem such as all exist shortage of resources at home, outward and cost an arm and a leg.
The purpose of this invention is to provide the additive of a kind of diamond with the pyrophillite hermetical and pressure madium, improve or change the sealing and the heat-insulating property of some common pyrophillite, become and produce the diamond hermetical and pressure madium, solve problems such as hermetical and pressure madium pyrophillite shortage of resources.
The present invention is that (or sand was wanted 40 mesh sieves from kaolinite subtribe breeze, bauxite powder, green mud stone flour, silica flour by one group, down all with then omiting) and brown iron oxide in several compositions of choosing any one kind of them, puddle evenly, be added on and realize in some common pyrophillite breeze.
In this additive between composition the ratio of parts by weight can be kaolinite subtribe breeze: bauxite powder: green mud stone flour, silica flour: brown iron oxide=(0-30): (0-60): (0-24): (0-25): (0-10).
The ratio of optimum weight umber is a kaolinite subtribe breeze between this additive composition: bauxite powder: green mud stone flour: silica flour: brown iron oxide=20: 40: 20: 16: 4.
The amount of this additive in the batching total amount is 4-40%, kaolinite subtribe breeze, bauxite powder, green mud stone flour, silica flour and brown iron oxide account for the amount in the batching total amount separately in other words, and the highest (percentage by weight) is respectively 12% (30 * 40%), 24% (60 * 40%), 9.6% (24 * 40%), 10% (25 * 40%), 4% (10 * 40%).
Some common pyrophillite generally all has performances such as good pressure transmission, insulation, high temperature resistant and easy processing, seal then different with heat-insulating property, in diamond is synthetic, generally owing to the sealing difference is sealed incessantly, then easy " blowing out " or the also not long diamond of not blowing out, both or grown also seldom, pressure was also very high simultaneously.Pressure one height, expensive top hammer is high with regard to corresponding consumption, has just brought insufferable expensive to producer.Because heat insulating ability is poor, in diamond was synthetic, heating current will raise, the heating current height makes heating hammer temperature hundreds of degree that raise, in synthetic and release because temperature difference violent change, also cause the high flow rate of expensive top hammer, brought insufferable economic loss to producer equally.This additive improved or changed some common pyrophillite and in diamond synthesis, seal and heat-insulating property, (gauge pressure of diamond synthesis, the same model gauge pressure equates or is close to make some common pyrophillite reach the sealing of existing hermetical and pressure madium in diamond is synthetic.), and improved heat-insulating property, and 2-5 lattice of heating current table decline, the actual heating current 100-200 ampere that reduces becomes diamond desirable seal transmission medium.
Said some common pyrophillite is exactly not contain to hinder the synthetic common or common pyrophillite that reaches growth " impurity " of diamond.
The present invention has been compared with the prior art following some advantage:
1. what the present invention adopted is that some common pyrophillite is a primary raw material, has enlarged the source of hermetical and pressure madium pyrophillite raw material, and China's common pyrophillite resource abundance has solved hermetical and pressure madium pyrophillite shortage of resources.
2. the present invention has changed the property specialized in or the unicity of present hermetical and pressure madium pyrophillite raw material, has increased the selectivity to some composition and stable performance pyrophillite, thereby has improved the stability of artificial diamond synthesis process.
3. the present invention is owing to the selectivity that has strengthened some common pyrophillite, may select just that to contain harmful few some common pyrophillite and additive of impurity be raw material for use, the pyrophyllite powder briquetting of making, can all be equal to down at carbon element, catalyst, synthesis technique, than the pyrophyllite powder briquetting of prior art, the high-quality high strength diamond that voluminous impure inclusion is few.
4. the present invention is than the pyrophyllite powder briquetting of prior art, and good heat preservation performance in diamond synthesis consumes heating current less, saves energy resource consumption.
5. the additive selected for use of the present invention and some common pyrophillite cost of material low four to tens times of the hermetical and pressure madium pyrophillite of usefulness, have therefore reduced the cost of pyrophyllite powder briquetting than prior art.
Below the present invention is further elaborated by 12 embodiment:
Embodiment 1:
This additive is kaolinite subtribe breeze, bauxite powder, green mud stone flour, silica flour and brown iron oxide, the ratio of parts by weight was respectively 20: 40: 20 separately: 16: 4, by 25% of batching total amount, take by weighing weight separately respectively, puddle evenly, be added in some common pyrophillite breeze of batching total amount institute surplus (this is 75% of the batching total amount, under analogize), stir, powder is molded.This pyrophyllite powder briquetting is diamond desirable seal transmission medium.
Embodiment 2:
This additive is a bauxite powder and the ratio of silica flour parts by weight is 60: 25, by 17% of batching total amount, takes by weighing weight separately respectively, puddles evenly, be added on the batching total amount in surplus some common pyrophillite breeze, puddle evenly, powder is molded.The same performance is not given unnecessary details one by one.
Embodiment 3:
This additive is that the diaspore breeze is a kind of in the bauxite, by 24% of batching total amount (weight), takes by weighing breeze, be added on the batching total amount in surplus some common pyrophillite breeze, puddle evenly, powder is molded.The briquetting of this additive allotment, good airproof performance, the diamond synthesis gauge pressure is hanged down the 1-4 lattice.
Embodiment 4:
This additive is that the green mud stone flour is a kind of, by 9.5% of batching total amount (weight), be added on the batching total amount in surplus some common pyrophillite breeze, puddle evenly, powder is molded.This briquetting, in diamond was synthetic, the actual heating current of saving was more than 100 amperes.
Embodiment 5:
This additive is that silica flour or sand are a kind of, by 10% of batching total amount (weight), be added on the batching total amount in surplus some common pyrophillite breeze, puddle evenly, powder is molded.
Embodiment 6:
The ratio of each parts by weight of this additive is kaolinite subtribe breezes: bauxite powder: silica flour: brown iron oxide is 5: 21: 3: 1, this additive is by 30% of the batching total amount, take by weighing weight separately respectively, stir, be added on again the batching total amount in surplus some common pyrophillite breeze, puddle evenly, powder is molded.Diamond synthesizing process is wide.
Embodiment 7:
The ratio of each parts by weight of this additive is kaolinite subtribe breezes: bauxite powder: quartz sand: brown iron oxide=10: 19: 8: 3, additive is by 40% of the batching total amount, take by weighing weight separately respectively, puddle evenly, be added on the batching total amount in surplus some common pyrophillite breeze, puddle evenly, powder is molded.This briquetting good airproof performance is suitable for top, two sides " obturating cup " most and uses.
Embodiment 8:
The ratio of each parts by weight of this additive is kaolinite subtribe breezes: bauxite powder: silica flour=8: 5: 7, and additive takes by weighing weight separately respectively by 20% of the batching total amount, puddle evenly, be added on the batching total amount in surplus some common pyrophillite breeze, stir, powder is molded.Briquetting sealing and good heat preservation performance, 3-5 lattice of heating current list index decline.
Embodiment 9:
This additive is quartz sand and brown iron oxide, and the ratio of the two parts by weight is 4: 3, and additive takes by weighing weight separately respectively by 7% of the batching total amount, puddles evenly, be added on the batching total amount in surplus some common pyrophillite breeze, stir, powder is molded.
Embodiment 10:
This additive is that the pearl pottery stone in the kaolinite subtribe is a kind of, by 12% taking by weighing of batching total amount (weight), be added on the batching total amount in surplus some common pyrophillite breeze, stir, powder is molded.The briquetting good heat preservation performance is saved heating current 100-200 ampere during diamond is synthetic.
Embodiment 11:
This additive is bauxite powder and green mud stone flour, and the ratio of the two parts by weight is 15: 5, takes by weighing powder weight separately respectively by 20% of batching total amount, puddle evenly, be added on again the batching total amount in surplus some common pyrophillite breeze, stir, powder is molded.This briquetting sealing and heat-insulating property tool are good.
Embodiment 12:
This additive is that brown iron oxide is a kind of, by 4% taking by weighing of batching total amount (weight), be added on the batching total amount in surplus some common pyrophillite breeze, stir, powder is molded.
Claims (3)
1. a diamond is with the additive of pyrophillite hermetical and pressure madium, select for use one group from kaolinite subtribe breeze, bauxite powder, green mud stone flour, silica flour and brown iron oxide, to choose any one kind of them several, it is characterized in that, in this additive between composition the ratio of parts by weight be kaolinite subtribe breeze: bauxite powder: green mud stone flour: silica flour: brown iron oxide=(0-30): (0-60): (0-24): (0-25): (0-10), mix, be added in some common pyrophillite breeze and form.
2. additive according to claim 1 is characterized in that, in this additive between composition the ratio of optimum weight umber be kaolinite subtribe breeze: bauxite powder: green mud stone flour: silica flour: brown iron oxide=20: 40: 20: 16: 4.
3. additive according to claim 1 and 2 is characterized in that, the percentage by weight of this additive in the batching total amount is 4-40%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99111136A CN1108184C (en) | 1998-08-06 | 1999-07-28 | Filler of pressure-transferring medium sealed by pyrophyllite for artificially synthetic diamond |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98117211.3 | 1998-08-06 | ||
| CN 98117211 CN1225292A (en) | 1998-08-06 | 1998-08-06 | Profile additive formed from pyrauxite powder used in the synthesis of diamond |
| CN99111136A CN1108184C (en) | 1998-08-06 | 1999-07-28 | Filler of pressure-transferring medium sealed by pyrophyllite for artificially synthetic diamond |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1243765A CN1243765A (en) | 2000-02-09 |
| CN1108184C true CN1108184C (en) | 2003-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99111136A Expired - Fee Related CN1108184C (en) | 1998-08-06 | 1999-07-28 | Filler of pressure-transferring medium sealed by pyrophyllite for artificially synthetic diamond |
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| CN (1) | CN1108184C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101445357B (en) * | 2008-04-10 | 2011-06-01 | 李学增 | Composite pyrophyllite material |
| CN101934208B (en) * | 2010-08-24 | 2012-11-14 | 山东聊城莱鑫超硬材料有限公司 | Pyrophyllite for synthetizing diamonds |
| CN105013399B (en) * | 2015-06-24 | 2017-07-25 | 中南钻石有限公司 | A kind of preparation method of the superhard material synthesis empty block of pyrophyllite |
| CN107986679B (en) * | 2017-11-02 | 2021-02-26 | 江苏西玉钻石科技有限公司 | Composite sealing ring for ultrahigh pressure synthetic artificial diamond equipment and preparation method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1218712A (en) * | 1997-12-01 | 1999-06-09 | 中国科学院长沙大地构造研究所 | Method for preparing chlorite solid medium for sealed pressure transmission |
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1999
- 1999-07-28 CN CN99111136A patent/CN1108184C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1218712A (en) * | 1997-12-01 | 1999-06-09 | 中国科学院长沙大地构造研究所 | Method for preparing chlorite solid medium for sealed pressure transmission |
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| Publication number | Publication date |
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| CN1243765A (en) | 2000-02-09 |
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