Ultra-hard composite sheet with hard alloy interlayer

A technology of cemented carbide and composite sheets, which is applied in the direction of metal layered products, layered products, chemical instruments and methods, etc., can solve the problems of low toughness, easy cracking, and high production costs, and achieve improved bending strength and impact Toughness, expanded application range, and reduced dosage

Inactive Publication Date: 2008-04-30
FUNIK ULTRAHARD MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of low toughness, easy cracking and high production cost of superhard polycrystalline materials, and improve the bending strength and impact tough

Method used

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  • Ultra-hard composite sheet with hard alloy interlayer
  • Ultra-hard composite sheet with hard alloy interlayer

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Embodiment 1

[0012] As shown in the figure, the present invention includes double-sided superhard material layer (1) and cemented carbide interlayer (2), and its superhard material layer (1) is made up of artificial diamond or cubic boron nitride and bonding agent, combined The agent is selected from aluminum nitride, titanium nitride, molybdenum nitride, magnesium nitride, zirconium nitride, chromium nitride, tungsten nitride, aluminum oxide, cobalt, molybdenum, titanium, iron, aluminum, nickel, copper, Any one or several of tungsten and chromium; the surface of the cemented carbide interlayer (2) is a convex-concave surface, and the cemented carbide interlayer (2) and the superhard material layer (1) are combined through the convex-concave contact surface .

Embodiment 2

[0014] As shown in the figure, the present invention includes double-sided superhard material layer (1) and cemented carbide interlayer (2), and its superhard material layer (1) is made up of artificial diamond or cubic boron nitride and bonding agent, combined The agent is selected from aluminum nitride, titanium nitride, molybdenum nitride, magnesium nitride, zirconium nitride, chromium nitride, tungsten nitride, aluminum oxide, cobalt, molybdenum, titanium, iron, aluminum, nickel, copper, Any one or several of tungsten and chromium; the surface of the cemented carbide interlayer (2) is a convex-concave surface, and the cemented carbide interlayer (2) and the superhard material layer (1) are combined through the convex-concave contact surface . The concave-convex surface on the surface of the cemented carbide interlayer (2) is a concave-convex plane or a concave-convex curved surface.

Embodiment 3

[0016] As shown in the figure, the present invention includes double-sided superhard material layer (1) and cemented carbide interlayer (2), and its superhard material layer (1) is made up of artificial diamond or cubic boron nitride and bonding agent, combined The agent is selected from aluminum nitride, titanium nitride, molybdenum nitride, magnesium nitride, zirconium nitride, chromium nitride, tungsten nitride, aluminum oxide, cobalt, molybdenum, titanium, iron, aluminum, nickel, copper, Any one or several of tungsten and chromium; the surface of the cemented carbide interlayer (2) is a convex-concave surface, and the cemented carbide interlayer (2) and the superhard material layer (1) are combined through the convex-concave contact surface . The surface of the cemented carbide interlayer (2) is in the shape of a convex platform or a concave platform or a concave-convex platform.

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Abstract

The invention discloses a super-hard composite sheet with rigid alloy sandwich, which comprises a dual-face super-hard layer and a rigid alloy sandwich, wherein the super-hard layer is composed of artificial diamond or cubic boron nitride, and conjugation agent. The conjugation agent is at least one of aluminium nitride, titanium nitride, molybdenum nitride, nitride magnesium, nitride zirconium, nitride chromium, nitride tungsten, aluminum oxide, cobalt, molybdenum, titanium, iron, aluminum, nickel, copper, tungsten, and chromium. The surface of the rigid alloy sandwich is concave-convex one, which is combined with the super-hard layer via the concave-convex contact faces. The invention uses the concave-convex engaged sandwich structure to improve the bending strength and impact flexibility of the super-hard composite sheet, reduce the consumption of consumption of super-hard material powder, and reduce production cost, thereby expanding the application range of the super-hard composite sheet.

Description

technical field [0001] The invention relates to a superhard composite sheet, in particular to a superhard composite sheet with a cemented carbide interlayer. Background technique [0002] Artificial diamond and cubic boron nitride are the two materials with the highest hardness in the world, among which diamond has the highest hardness among all known substances, and the hardness of cubic boron nitride is second only to diamond, but its heat resistance and chemical resistance to ferrous metals Greater stability. The superhard polycrystalline material, which is sintered by superhard material powder and a small amount of binder at high temperature and high pressure, has good performance and is widely used in the field of machining tools. However, the superhard polycrystalline materials currently produced are not tough enough, and they are prone to cracking during use. Moreover, it needs to consume a large amount of superhard material powder, and the production cost is relati...

Claims

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Application Information

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IPC IPC(8): B32B33/00B32B9/00B32B7/04B32B15/04C22B1/16
Inventor 李和鑫
Owner FUNIK ULTRAHARD MATERIAL
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