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Production technique for high grade high-yield synthetic diamond fine - micro-fine particle diamond

A technology of artificial diamond and production process, which is applied in the field of production technology of high-quality and high-yield production of fine-fine-grained artificial diamond, and achieves the effect of feasible process, concentrated particle size and fine particle size.

Inactive Publication Date: 2007-10-31
方啸虎 +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 high-yield synthetic diamond fine - micro-fine particle diamond
  • Production technique for high grade high-yield synthetic diamond fine - micro-fine particle diamond
  • Production technique for high grade high-yield synthetic diamond fine - micro-fine particle diamond

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1. Press: QYDS series 6×22MN six-sided top press produced by Hunan Changde Qiyi Machinery Factory, which has Chinese characteristics and is a pocket-bottom hinged press with a cylinder diameter of Φ520mm;

[0034] 2. Control system: JY-ZIC artificial diamond press electric control system produced by Changsha Shuangquan Automation Co., Ltd., with pressure accuracy of 0.01MPa and temperature accuracy (expressed in current) of 3A;

[0035] 3. Pyrophyllite block: 59×59×59mm 3 (two-section type);

[0036] 4. Dolomite liner: Φ 外 48mm×Φ 内38mm;

[0037] 5. Cavity: Φ38mm;

[0038] 6. Graphite column: Φ38mm×32mm

[0039] 7. Synthesis process:

[0040] Synthetic pressure: the original synthesis pressure: P (generally 95-98MPa) the actual synthesis pressure is 2-10% lower than the original synthesis pressure;

[0041] Suspension pressure: 80-92% of the synthetic pressure, the difference between the two suspension pressures is 0.10-0.15MPa;

[0042] Pause time: 120-180S;

...

Embodiment 2

[0049] 1. Press: QYDS series 6×22MN six-sided top press produced by Hunan Changde Qiyi Machinery Factory, which has Chinese characteristics and is a pocket-bottom hinged press with a cylinder diameter of Φ520mm;

[0050] 2. Control system: JY-ZIC artificial diamond press electric control system produced by Changsha Shuangquan Automation Co., Ltd., with pressure accuracy of 0.01MPa and temperature accuracy (expressed in current) of 3A;

[0051] 3. Pyrophyllite block: 59×59×59mm 3 (two-section type);

[0052] 4. Dolomite liner: Φ 外 48mm×Φ 内 40mm;

[0053] 5. Cavity: Φ40mm;

[0054] 6. Graphite column: Φ40mm×34mm

[0055] 7. Synthesis process:

[0056] Synthetic pressure: the original synthetic pressure: P (generally 95-98MPa), the actual synthetic pressure is 2-10% lower than the original synthetic pressure;

[0057] Suspension pressure: 80-92% of the synthetic pressure, the difference between the two suspension pressures is 0.10-0.15MPa;

[0058] Pause time: 120-180S; ...

Embodiment 3

[0065] 1. Press: QYDS series 6×22MN six-sided top press produced by Hunan Changde Qiyi Machinery Factory, which has Chinese characteristics and is a pocket-bottom hinged press with a cylinder diameter of Φ520mm;

[0066] 2. Control system: JY-ZIC artificial diamond press electric control system produced by Changsha Shuangquan Automation Co., Ltd., with pressure accuracy of 0.01MPa and temperature accuracy (expressed in current) of 3A;

[0067] 3. Pyrophyllite block: 60×60×60mm 3 (two-section type);

[0068] 4. Dolomite liner: Φ 外 50mm×Φ 内 42mm;

[0069] 5. Cavity: Φ42mm;

[0070] 6. Graphite column: Φ42mm×35mm

[0071] 7. Synthesis process:

[0072] Synthetic pressure: the original synthetic pressure: P (generally 95-98MPa), the actual synthetic pressure is 2-10% lower than the original synthetic pressure;

[0073] Suspension pressure: 80-92% of the synthetic pressure, the difference between the two suspension pressures is 0.10-0.15MPa;

[0074] Pause time: 150-200S; ...

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Abstract

The invention relates to an excellent high alloy man made diamond sand manufacturing, using powder catalyst and graphite dust compressed under super high pressure and temperature to synthesize diamond. The synthesized pressure is lowered 2-10% compared to common synthesized pressure, with requirement for temperature matching and regulation at the same time, 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. The synthesized man made diamond grains are mainly 170 / 200, 200 / 230, 230 / 270, 270 / 325, with 325 / 400 and 400 / 500 even finer diamonds. It uses the alloy diamond powder catalyst and bar making process. It also designs a set of high temperature super pressure synthesis according to low temperature and low pressure for the special selection of temporary shut pressure. The newly established process realizes the good effect the product.

Description

technical field [0001] The invention relates to a high-quality and high-yield production process for producing fine-fine 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 ...

Claims

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Application Information

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