CN1291525A - Pressure-transferring hollow cubic block for synthesizing artificial diamond - Google Patents
Pressure-transferring hollow cubic block for synthesizing artificial diamond Download PDFInfo
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- CN1291525A CN1291525A CN 99115590 CN99115590A CN1291525A CN 1291525 A CN1291525 A CN 1291525A CN 99115590 CN99115590 CN 99115590 CN 99115590 A CN99115590 A CN 99115590A CN 1291525 A CN1291525 A CN 1291525A
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- cubic block
- hollow cubic
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Abstract
A pressure-transferring hollow cubic block used for synthesizing artificial diamond is composed of outer cavity prepared from pyrophyllite powder and inner cavity prepared from SiO2, magnesium oxide, Al2O3, calcium oxide, Fe2O3 and Ni2O3. It is made up through calcium, mixing and die pressing. Its advantages include high insulating performance and high quality and output of artificial diamond (including good colour, high transparency and good crystal shape).
Description
The present invention relates to the hollow cubic block that the transmission medium diamond synthesis in the artificial diamond synthesis process is used.
In China's diamond industry synthesis technique, diamond is grown up in the inner chamber of transmission medium hollow cubic block.And with single pyrophillite as transmission medium, be in China's diamond industry synthesis technique, never changed main auxiliary material in decades.Occurred the synthetic hollow cubic block of using that dolomite and pyrophillite combine and form in recent years, its raw material drawing is in the unartificial synthetic material of natural crystal.But the hollow cubic block that above-mentioned material is synthetic, heat-insulating property is general, and synthetic diamond color, transparency, crystalline form of producing is undesirable, and bubble is arranged in the crystal, contains assorted many and with crackle.
Purpose of the present invention aims to provide and a kind ofly can improve its heat-insulating property widely, makes the diamond color of output good, transparency height, good crystalline, the synthetic transmission medium hollow cubic block of using of the artificial synthetic diamond that single excellent output is high.
The objective of the invention is to realize: (by weight) by following manner
The present invention divides two layers of inner chamber, exocoels, exocoel is the pyrophillite breeze, its inner chamber composition of raw materials comprises silica 5%-20%, magnesia 5%-20%, alundum (Al 5%-30%, calcium oxide 5-30%, adds di-iron trioxide 1.5%-30%, nickel sesquioxide 0.01%-10%.
Wherein the better suited content of di-iron trioxide is 1.5%-20%, nickel sesquioxide 0.01%-5%.
The optimal content of the present invention is silica 8%-20%, magnesia 8%-20%, alundum (Al 18%-30%, calcium oxide 18%-30%, adds di-iron trioxide 1.5%-10%, nickel sesquioxide 0.01%-2%.
Inner chamber of the present invention can be made into light red or redness or peony.
Accompanying drawing is a schematic diagram of the present invention.Drawing explanation: 1-inner chamber 2-exocoel
Above-mentioned pulverous inner chamber raw material is weighed according to a certain ratio, after silica, magnesia, alundum (Al, calcium oxide roasting, add di-iron trioxide, nickel sesquioxide again and mix, and fully stir the back with adhesive and combine by mould compression moulding with the pyrophillite breeze.
The present invention improves its heat-insulating property owing to include the effect of raw materials such as magnesia, silica, calcium oxide widely.Because diamond must grow up under the HTHP under 2800 ℃, thereby its heat-insulating property is had relatively high expectations and the energy that consumes is also a lot, and be made into hollow cubic block with artificial composite material of the present invention, the heat insulating ability of its inner chamber is better than pyrophillite and dolomite, thermal loss is few in the high pressure chest, help the temperature field in the stable synthetic chamber on the one hand, provide good environment for producing high-grade synthetic diamond single crystal.Is to have reduced the surface temperature that adds hot-activity hammer on the other hand, prolonged the service life of top hammer, and the raising of temperature is to implement by electricity that high insulating effect also can be saved electric energy, compares economize on electricity about 8% with traditional transmission medium.
It is generally acknowledged in traditional idea that di-iron trioxide and nickel sesquioxide are harmful to growth of diamond, and among the present invention just by adding a certain proportion of di-iron trioxide, nickel sesquioxide, simultaneously with raw material in raw materials such as alundum (Al one work, make synthetic diamond single crystal's color of producing in the cavity of the present invention good, the transparency height, good crystalline mostly is hexahedron, octahedron, dodecahedron, the per unit area yield height.Produce diamond enterprise and use when of the present invention, its roasting technique, synthesis technique and pyrophillite, dolomite hollow cubic block do not have too big difference, and this product is convenient to each diamond enterprise and is popularized in an all-round way aborning.
Embodiment 1:
Take by weighing silica 4 grams, alundum (Al 5.6 grams, magnesia 3.6 grams, calcium oxide 5.6 grams after above-mentioned pulverous raw material roasting, add di-iron trioxide 0.4 gram again, after nickel sesquioxide 0.8 gram mixes, add adhesive waterglass again, after stirring, combine by mould compression moulding with a certain amount of pyrophillite.
Embodiment 2:
Take by weighing silica 3 grams, alundum (Al 9 grams, magnesia 5.4 grams, calcium oxide 9 grams after above-mentioned pulverous raw material roasting, add di-iron trioxide 3 grams, after nickel sesquioxide 0.6 gram mixes, add adhesive waterglass again, after stirring, combine by mould compression moulding with a certain amount of pyrophillite.
Embodiment 3:
Take by weighing silica 8 grams, alundum (Al 4 grams, magnesia 8 grams, calcium oxide 6.4 grams after above-mentioned pulverous raw material roasting, add di-iron trioxide 10 grams, nickel sesquioxide 3.6 grams mix, add adhesive waterglass again, after stirring, combine by mould compression moulding with a certain amount of pyrophillite.
Claims (4)
1, a kind of diamond pressure-transferring hollow cubic block for synthesizing, divide inner chamber, exocoel, its inner chamber composition of raw materials comprises silica 5%-20%, magnesia 5%-20%, alundum (Al 5%-30%, calcium oxide 5-30% dusty raw materials, it is characterized in that adding di-iron trioxide 1.5%-20%, nickel sesquioxide 0.01%-10%, by weight.
2, a kind of diamond pressure-transferring hollow cubic block for synthesizing as claimed in claim 1 is characterized in that wherein the content of di-iron trioxide is 1.5%-20%, nickel sesquioxide 0.01%-5%, by weight.
3, a kind of diamond pressure-transferring hollow cubic block for synthesizing as claimed in claim 1, it is characterized in that the inner chamber raw material can be silica 8%-20%, magnesia 8%-20%, alundum (Al 18%-30%, calcium oxide 18%-30%, the content of di-iron trioxide is 1.5%-10%, nickel sesquioxide 0.01%-2%, by weight.
4, a kind of diamond pressure-transferring hollow cubic block for synthesizing as claimed in claim 1, the inner chamber that it is characterized in that can be made into light red or redness or peony.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99115590A CN1102861C (en) | 1999-10-10 | 1999-10-10 | Pressure-transferring hollow cubic block for synthesizing artificial diamond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99115590A CN1102861C (en) | 1999-10-10 | 1999-10-10 | Pressure-transferring hollow cubic block for synthesizing artificial diamond |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1291525A true CN1291525A (en) | 2001-04-18 |
| CN1102861C CN1102861C (en) | 2003-03-12 |
Family
ID=5278528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99115590A Expired - Fee Related CN1102861C (en) | 1999-10-10 | 1999-10-10 | Pressure-transferring hollow cubic block for synthesizing artificial diamond |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1102861C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860855A (en) * | 2021-09-27 | 2021-12-31 | 郑州中南杰特超硬材料有限公司 | Method for manufacturing pressure transmission medium used in ultrahigh pressure environment |
| CN115947612A (en) * | 2022-12-09 | 2023-04-11 | 秦皇岛琨煜晶材科技有限公司 | Pressure transmission medium for high temperature and high pressure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1225292A (en) * | 1998-08-06 | 1999-08-11 | 高德生 | Profile additive formed from pyrauxite powder used in the synthesis of diamond |
-
1999
- 1999-10-10 CN CN99115590A patent/CN1102861C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860855A (en) * | 2021-09-27 | 2021-12-31 | 郑州中南杰特超硬材料有限公司 | Method for manufacturing pressure transmission medium used in ultrahigh pressure environment |
| CN115947612A (en) * | 2022-12-09 | 2023-04-11 | 秦皇岛琨煜晶材科技有限公司 | Pressure transmission medium for high temperature and high pressure |
| CN115947612B (en) * | 2022-12-09 | 2023-09-12 | 秦皇岛琨煜晶材科技有限公司 | Pressure transmission medium for high temperature and high pressure |
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| Publication number | Publication date |
|---|---|
| CN1102861C (en) | 2003-03-12 |
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