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Diamond compact and manufacturing process for same

A diamond composite sheet and manufacturing process technology, applied in the direction of manufacturing tools, metal processing equipment, wood processing appliances, etc., can solve the problems of affecting processing, drilling efficiency, poor wear resistance, short service life of drill bits, etc., to achieve improved compactness, Good ductility and the effect of improving wear resistance

Inactive Publication Date: 2012-07-25
成都比拓超硬材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to facilitate the synthesis of materials, the cobalt content in cemented carbide, one of the main raw materials used in the production of polycrystalline diamond compact and polycrystalline diamond compact drill teeth, exceeds 13%. However, polycrystalline diamond compact and polycrystalline The higher the cobalt content in diamond compact drill teeth, the worse the wear resistance of polycrystalline diamond compact drill teeth and polycrystalline diamond compact drill teeth, which directly leads to the wear and tear of polycrystalline diamond compact cutters and polycrystalline diamond compact drill teeth. The service life of the drill bit is short, which affects the efficiency of processing and drilling

Method used

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  • Diamond compact and manufacturing process for same
  • Diamond compact and manufacturing process for same

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Embodiment

[0029] Such as figure 1 As shown, the diamond composite sheet includes a cemented carbide substrate 1 and a diamond polycrystalline layer 2, wherein the cemented carbide substrate 1 is made of cemented carbide with a cobalt content of 2% to 13%. The diamond polycrystalline layer 2 is connected to the upper end surface of the cemented carbide substrate 1 , and the cemented carbide substrate 1 and the diamond polycrystalline layer 2 are integrated into one body and form a cylindrical shape as a whole.

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PUM

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Abstract

The invention discloses a diamond compact, which comprises a hard alloy substrate and a diamond polycrystalline layer connected onto the upper end face of the hard alloy substrate, wherein the hard alloy substrate is integrated with the diamond polycrystalline layer to integrally form a cylinder shape, and the hard alloy substrate is made of hard alloy containing 2%-13% of cobalt. The invention further discloses a manufacturing process for the diamond compact. Abrasion resistance of the diamond compact is improved by reducing the cobalt content in the hard alloy of the hard alloy substrate, so that the service life of the diamond compact is prolonged.

Description

technical field [0001] The invention relates to a superhard composite material, in particular to a diamond composite sheet and its manufacturing process. Background technique [0002] Polycrystalline diamond composite sheet is a composite material composed of diamond and cemented carbide matrix, which has the characteristics of high hardness and good wear resistance. The existing polycrystalline diamond compacts are mainly divided into polycrystalline diamond compacts (PCD) and polycrystalline diamond compact drills (PDC). Hard materials, because of their extremely high hardness and wear resistance, have replaced traditional high-speed steel and carbide tools as the first choice in the fields of woodworking and machining; polycrystalline diamond compact drill teeth (PDC) are used in oil, gas and geological drilling The key composite superhard material is the main working part and material on the diamond drill bit, and its performance directly determines the efficiency of oi...

Claims

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Application Information

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IPC IPC(8): E21B10/46B23B51/00B27C3/00B23P15/00B23P15/28B22F7/02
Inventor 贺端威
Owner 成都比拓超硬材料有限公司
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