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Production technology for brazing diamond polycrystal and used mold thereof

A production process, diamond technology, applied in the direction of crystal growth, single crystal growth, single crystal growth, etc., can solve the problems of high production cost, inability to meet the needs of diamond tools, low output, etc., and achieve low production cost, high compactness, The effect of high product quality

Inactive Publication Date: 2011-04-27
WUHAN WAN BANG LASER DIAMOND TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the limitation of diamond synthesis conditions, although the maximum diameter of the artificial diamond single crystal (the size of a single diamond particle) can reach (5-6) mm, the production cost is high and the output is low, so it can be supplied in batches on the market. Mainly diamond particles with a diameter below 0.8mm cannot meet the needs of the diamond tool manufacturing industry

Method used

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  • Production technology for brazing diamond polycrystal and used mold thereof
  • Production technology for brazing diamond polycrystal and used mold thereof

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Embodiment Construction

[0016] The structure disclosed in the above accompanying drawings is the structure of an embodiment of the mold used in the present invention.

[0017] The parts and their labels in the figure are: 1. Iron block, 2. Graphite or ceramic block, 3. Brazing powder, 4. Feed graphite ring or ceramic ring, 5. The mixture of brazing powder and diamond particles, 6. Cylindrical graphite or ceramic mold body, 7. Process metal mesh, 8. Reinforced metal mesh or wire.

[0018] Below in conjunction with accompanying drawing and embodiment the invention is further introduced:

[0019] The brazing powder and diamond particles are uniformly mixed at an optimal mass ratio of 2.23:1, and a cavity is processed on the high-purity cylindrical graphite mold body 6 according to the designed shape. The matching gap between the cavity and the filler graphite ring 4 is (0.02-0.03) mm, and an anti-seepage release agent (such as cubic boron nitride) is coated on the inner wall of the cavity, assembled ac...

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Abstract

The invention discloses production technology for a brazing diamond polycrystal and a used mold thereof. The middle part of a mold body is provided with a die cavity, the upper part of the die cavity is provided with a feeding ring, a graphite or ceramic block is arranged above the feeding ring, and a pressure block is arranged above the graphite or ceramic block. The production technology comprises the steps of: mixing a brazing material and diamond particles evenly first; then paving the mixture into the die cavity, wherein the inside of the mixture is provided with a reinforced metal mesh (wire); arranging a process metal mesh on the top of the mixture, arranging the feeding ring above the metal mesh, and adding a brazing complementary material into the ring; arranging the graphite or ceramic block above the feeding ring, and pressing the pressure block on the graphite or ceramic block; and placing the mold and the mixture into a vacuum furnace for heating, performing heat preservation for 10 to 30 seconds when the temperature reaches 10 to 60 DEG C higher than the melting point of the brazing material, and taking the obtained product out of the furnace after the cooling. The polycrystal has high strength, can be independently used or added into a diamond tool to be used, and improve the performance and quality of the diamond tool.

Description

technical field [0001] The invention relates to the technical field of diamond tool production, in particular to a production process of brazing polycrystalline diamond and a mold used therefor. Background technique [0002] Due to the limitation of diamond synthesis conditions, although the maximum diameter of the artificial diamond single crystal (the size of a single diamond particle) can reach (5-6) mm, the production cost is high and the output is low, so it can be supplied in batches on the market. Mainly diamond particles with a diameter below 0.8 mm cannot meet the needs of the diamond tool manufacturing industry. Contents of the invention [0003] The purpose of the present invention is to provide a manufacturing process for brazing polycrystalline diamond and the mold used therefor, so that the diamond particles in the product are closely combined with the brazing powder, the product quality is high, and the cost is low, thereby meeting the requirements of the di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B33/06C30B29/04B23P5/00C22C1/05
Inventor 叶宏煜谢涛
Owner WUHAN WAN BANG LASER DIAMOND TOOLS
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