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A kind of diamond composite sheet and its preparation method

A diamond composite sheet and diamond micropowder technology, applied in the field of diamond composite sheet and preparation, can solve the problems of indistinguishable, indistinguishable, mis-mixed diamond composite sheets, etc., and achieve the effect of clear pattern and simple process

Active Publication Date: 2019-06-18
SHENZHEN HAIMINGRUN SUPERHARD MATERIALS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a diamond composite sheet and a preparation method, aiming at solving the problem that the existing diamond composite sheets are often mixed, and difficult to distinguish and cannot be distinguished after mixing

Method used

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  • A kind of diamond composite sheet and its preparation method
  • A kind of diamond composite sheet and its preparation method

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Embodiment 1

[0043] Manufacturers open molds to customize cemented carbide substrates, such as figure 1 As shown, the front tooth shape of the cemented carbide substrate is the same as that of the ordinary cemented carbide substrate, and the back of the cemented carbide substrate has a circular groove with a depth of 2mm and a diameter of 8mm; it is matched with a 7.95mm diameter , 2mm thick hard alloy block; prepare a piece of copper-based brazing sheet with a diameter of about 6mm and a thickness of 0.05mm; then sandblast the front of the hard alloy substrate and clean it for later use.

[0044] Put the prepared diamond powder into a metal cup and compact it, then put it into the cemented carbide substrate, and make the toothed side (front side) of the cemented carbide substrate contact with the diamond powder, and then place it on the hard alloy substrate. The copper-based brazing sheet is put into the circular groove on the back of the cemented carbide substrate, and then the hard allo...

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Abstract

The invention discloses a diamond compact and a preparation method thereof. The preparation method of the diamond compact comprises the steps that a cemented carbide substrate with a geometric patterngroove in the back face, a cemented carbide block and a brazing sheet different from cemented carbide materials in color are prepared; diamond micro-powder is loaded into a metal cup and then is compacted, then the cemented carbide substrate is loaded, the brazing sheet is arranged in the geometric pattern groove of the cemented carbide substrate, then the cemented carbide block is arranged on the brazing sheet, the cemented carbide block and the geometric pattern groove form a geometric pattern seam, a middle cup and a large cup are sleeved, and an assembled suite is obtained; the suite is subjected to vacuum treatment, then the suite is sintered, and the diamond compact with a geometric pattern logo is obtained. According to the preparation method, the diamond compact with the geometricpattern logo on the back face can be prepared, and accordingly different diamond compacts can be distinguished from different geometrical pattern logos.

Description

technical field [0001] The invention relates to the field of diamond composite sheets, in particular to a diamond composite sheet and a preparation method thereof. Background technique [0002] Diamond composite sheet is sintered by diamond powder and cemented carbide substrate under ultra-high temperature and high pressure conditions. It is mainly composed of cemented carbide substrate and sintered polycrystalline diamond layer. It has both high hardness and high wear resistance of diamond. Good thermal conductivity and high strength and impact toughness of cemented carbide, it is an ideal material for making cutting tools, drilling bits and other wear-resistant tools. [0003] Conventional diamond composite sheets have a single model, fixed size, and basically the same appearance. The final products obtained by different formulas and different production processes have significant differences in performance, and it is difficult to quickly distinguish them from the appearan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F7/08B22F3/14
CPCB22F3/14B22F7/08
Inventor 杨华欧龙郭大萌
Owner SHENZHEN HAIMINGRUN SUPERHARD MATERIALS
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