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Preparation method for composite hard alloy material

A cemented carbide and grinding machine technology, applied in the field of composite materials, can solve the problems of limited application, low strength and toughness, etc., and achieve the effects of inhibiting grain growth, good thermal shock performance, and purifying grain boundaries

Inactive Publication Date: 2015-12-23
梅照付
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with WC-Co cemented carbide, the lower strength and toughness of Ti(C,N)-based cermets greatly limits its application as tool material.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0016] The composite cemented carbide material is prepared from the following components in parts by weight: 35 parts of nano-titanium carbide, 15 parts of nano-titanium nitride, 9 parts of tungsten carbide, 5 parts of niobium carbide, 3 parts of silicon carbide, 1 part of yttrium oxide, 3 parts of aluminum, 5 parts of titanium powder, 2 parts of tantalum carbide, 2 parts of zirconium carbide, 13 parts of cobalt powder, 0.5 parts of silicon powder, 2 parts of nickel powder, 6 parts of boron carbide, of which tungsten carbide, nickel powder, aluminum carbide, The particle size of nano titanium carbide and yttrium oxide is 0.8μm, the particle size of cobalt powder, silicon powder, tantalum carbide and silicon carbide is 1.0μm, in addition, tungsten carbide, cobalt powder, nickel powder, silicon powder, aluminum carbide, tantalum carbide , Nano titanium carbide, silicon carbide and yttrium oxide are all equal to 99.5% in purity.

[0017] The above weighed nano-titanium carbide, n...

specific Embodiment 2

[0018] The composite cemented carbide material is prepared from the following components in parts by weight: 40 parts of nano-titanium carbide, 5 parts of nano-titanium nitride, 7 parts of tungsten carbide, 8 parts of niobium carbide, 7 parts of silicon carbide, 3 parts of yttrium oxide, 1 part of aluminum, 1 part of titanium powder, 10 parts of tantalum carbide, 5 parts of zirconium carbide, 10 parts of cobalt powder, 1.5 parts of silicon powder, 1 part of nickel powder, 2 parts of boron carbide, of which tungsten carbide, nickel powder, aluminum carbide, The particle size of nano titanium carbide and yttrium oxide is 1.2μm, the particle size of cobalt powder, silicon powder, tantalum carbide and silicon carbide is 0.8μm, in addition, tungsten carbide, cobalt powder, nickel powder, silicon powder, aluminum carbide, tantalum carbide , Nano titanium carbide, silicon carbide and yttrium oxide are all equal to 99.7% in purity.

[0019] The above weighed nano-titanium carbide, nan...

specific Embodiment 3

[0020] The composite cemented carbide material is prepared from the following components in parts by weight: 38 parts of nano-titanium carbide, 10 parts of nano-titanium nitride, 8 parts of tungsten carbide, 6 parts of niobium carbide, 6 parts of silicon carbide, 2.5 parts of yttrium oxide, 2 parts of aluminum, 4 parts of titanium powder, 5 parts of tantalum carbide, 4 parts of zirconium carbide, 11 parts of cobalt powder, 1 part of silicon powder, 1.5 parts of nickel powder, 4 parts of boron carbide, of which tungsten carbide, nickel powder, aluminum carbide, The particle size of nano titanium carbide and yttrium oxide is 0.8μm, the particle size of cobalt powder, silicon powder, tantalum carbide and silicon carbide is 0.8μm, in addition, tungsten carbide, cobalt powder, nickel powder, silicon powder, aluminum carbide, tantalum carbide , Nano titanium carbide, silicon carbide and yttrium oxide are all equal to 99.3% in purity.

[0021] The above weighed nano-titanium carbide,...

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Abstract

The invention discloses a composite hard alloy material and relates to the field of composite materials. The composite hard alloy material comprises, by weight, 35-40 parts of nano-titanium carbide, 5-15 parts of nano-titanium nitride, 7-9 parts of tungsten carbide, 5-8 parts of niobium carbide, 3-7 parts of silicon carbide, 1-3 parts of yttrium oxide, 1-3 parts of aluminum carbide, 1-5 parts of titanium powder, 2-10 parts of tantalum carbide, 2-5 parts of zirconium carbide, 10-13 parts of cobalt powder, 0.5-1.5 parts of silica powder, 1-2 parts of nickel powder and 2-6 parts of boron carbide. A rare earth element is added, and the rare earth element is more active relative to other elements in the hard alloy and can be easily combined with oxygen, sulfur and other impurities in the alloy to purify the crystal boundary and eliminate defects, so that the prepared alloy has the characteristics of being high in strength, good in toughness, resistant to wear and good in thermal shock performance. The composite hard alloy material is applicable to the composite hard alloy material field.

Description

[0001] This application is a divisional application with an application number of 2015102723279 and an application date of May 26, 2015, titled a composite cemented carbide material and its preparation method. technical field [0002] The invention relates to the field of composite materials, in particular to a method for preparing composite hard alloy materials. Background technique [0003] Cemented carbide materials are used in processing tools in the manufacturing industry. They have high hardness, good high temperature performance and excellent wear resistance, and are known as industrial teeth. [0004] Tungsten carbide-based cemented carbide is widely used as cutting tools, mining tools and wear-resistant parts due to its high strength, high hardness, high wear resistance and high red hardness. From the comprehensive requirements of impact toughness and wear resistance , low-cobalt coarse grain alloy structure can meet this requirement. [0005] Cermets have gone thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/05C22C29/02
Inventor 不公告发明人
Owner 梅照付