Production technique for high-grade fine-particle diamond with high grade of transparency

An artificial diamond, high transparency technology, applied in the application of ultra-high pressure process, etc., to achieve good results and improve transparency

Inactive Publication Date: 2007-10-31
彭国强 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So obviously its quality is not as good as domestically produced fine-fine materials

Method used

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  • Production technique for high-grade fine-particle diamond with high grade of transparency
  • Production technique for high-grade fine-particle diamond with high grade of transparency
  • Production technique for high-grade fine-particle diamond with high grade of transparency

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. Press: TDS034 series 6×21MN six-sided top press produced by Hunan Taishan Machinery Co., Ltd. It has Chinese characteristics and is a spherical bottom hinged press with a cylinder diameter of Φ500mm;

[0024] 2. Control system: JY-ZIC artificial diamond press electrical control device produced by Changsha Shuangjin Automation Co., Ltd., with a pressure accuracy of 0.01MPa and a temperature accuracy (indicated by current) of 3A;

[0025] 3. Pyrophyllite block: 58×58×58mm 3 (two section type)

[0026] 4. Dolomite liner: Φ 外 46mm×Φ 内 38mm;

[0027] 5. Cavity: Φ38mm;

[0028] 6. Graphite column: Φ38mm×32mm

[0029] 7. Synthesis process:

[0030] Synthetic pressure: generally 96-98MPa;

[0031] Heating pressure: 650-750MPa;

[0032] Synthesis temperature: 2-5% higher than the usual temperature in the early stage;

[0033] Suspension pressure: 80-92% of the synthetic pressure, the difference between the two suspension pressures is 0.10-0.15MPa;

[0034] Pause ti...

Embodiment 2

[0041] 1. Press: TDS034 series 6×21MN six-sided top press produced by Hunan Taishan Machinery Co., Ltd. It has Chinese characteristics and is a spherical bottom hinged press with a cylinder diameter of Φ500mm;

[0042] 2. Control system: JY-ZIC artificial diamond press electrical control device produced by Changsha Shuangjin Automation Co., Ltd., with a pressure accuracy of 0.01MPa and a temperature accuracy (indicated by current) of 3A;

[0043] 3. Pyrophyllite block: 58×58×58mm 3 (two-section type);

[0044] 4. Dolomite liner: Φ 外 46mm×Φ 内 38mm;

[0045] 5. Cavity: Φ38mm;

[0046] 6. Graphite column: Φ38mm×32mm

[0047] 7. Synthesis process:

[0048] Synthetic pressure: generally 96-98MPa;

[0049] Heating pressure: 670-750MPa;

[0050] Synthesis temperature: 2-10% higher than the usual temperature in the early stage;

[0051] Suspension pressure: 83-91% of the synthetic pressure, the difference between the two suspension pressures is 0.10-0.15MPa;

[0052] Pause ...

Embodiment 3

[0059] 1. Press: TDS034 series 6×21MN six-sided top press produced by Hunan Taishan Machinery Co., Ltd. It has Chinese characteristics and is a spherical bottom hinged press with a cylinder diameter of Φ500mm;

[0060] 2. Control system: JY-ZIC artificial diamond press electrical control device produced by Changsha Shuangjin Automation Co., Ltd., with a pressure accuracy of 0.01MPa and a temperature accuracy (indicated by current) of 3A;

[0061] 3. Pyrophyllite block: 58×58×58mm 3 (two-section type);

[0062] 4. Dolomite liner: Φ 外 46mm×Φ 内 38mm;

[0063] 5. Cavity: Φ38mm;

[0064] 6. Graphite column: Φ38mm×32mm;

[0065] 7. Synthesis process:

[0066] Synthetic pressure: generally 96-98MPa;

[0067] Heating pressure: 680-740MPa;

[0068] Synthesis temperature: 2-8% higher than the usual temperature in the early stage;

[0069] Suspension pressure: 85-90% of the synthetic pressure, the difference between the two suspension pressures is 0.10-0.15MPa;

[0070] Pause ...

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Abstract

The invention relates to an excellent transparent man made diamond sand manufacturing, using alloy powder and graphite dust compressed under super high pressure and temperature to synthesize diamond. The synthesized pressure is 96-98MPa, temperature rising pressure being 650-750MPa, synthesized temperature increased 2-10% than usual, temporary stopping pressure being 80-92% of the synthesized pressure, with a gap of 0. 10-0. 15MPa and time interval 120-180s and pressure maintaining time being 5-20s. Using the growing mechanism of intermiscibility, core formation, growing, and counter growing, it improves the product transparency when it starts extracts slag under high temperature, realizing fine and highly transparent diamond.

Description

technical field [0001] The invention relates to a production process of high-transparency and high-quality fine-fine grain artificial diamond. technical background [0002] Fine-grained diamond is widely used in high-precision, difficult-to-machine metal materials and non-metal materials, such as aerospace, military industry, electronics-microelectronics, glass ceramics and a series of cutting-edge technologies. It is developed and innovated in many fields. Pilot work. It is therefore a very important subject. [0003] Although there are several major famous foreign manufacturers in this industry, such as G.E.Co. of the United States, De Beers of South Africa, and Winter of Germany, etc., all have their own uniqueness in the development of coarse-grained high-quality diamonds, but foreign diamond production equipment, brought The production of fine-fine artificial diamond is not suitable, so the latest information shows that there are not many foreign s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J3/06
Inventor 彭国强方啸虎
Owner 彭国强
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