Composite hard alloy material and preparation method thereof

A technology of cemented carbide and alloy powder, which is applied in the direction of metal material coating process, coating, solid-state diffusion coating, etc., can solve the problems of limited application, low strength and toughness, and achieve the purpose of inhibiting grain growth and purifying grain boundaries , increasing the effect of hindrance

Active Publication Date: 2015-05-20
CHENGDU BANGPU CUTTING TOOLS CO LTD
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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 materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The composite cemented carbide material of the present embodiment is made from the following components in parts by weight:

[0033] 35 parts of nano-titanium carbide, 5 parts of nano-titanium nitride, 7 parts of tungsten carbide, 5 parts of niobium carbide, 3-7 parts of silicon carbide, 3 parts of cobalt powder, 1 part of yttrium oxide, 1 part of aluminum carbide, and 1 part of titanium powder. The particle size of the tungsten carbide is 2.0-5.0 μm, the particle size of the cobalt powder is 1.5-3.5 μm; the particle size of the titanium powder is 1.8-3.5 μm; the particle size of the yttrium oxide is 1.0-3.0 μm; the The particle size of niobium carbide, silicon carbide and aluminum carbide is 1.5-3.5 μm.

[0034] Nano-titanium carbide, nano-titanium nitride, tungsten carbide, niobium carbide, silicon carbide, cobalt powder, yttrium oxide, aluminum carbide, titanium powder weighed according to the above components are mixed evenly by dry ball milling, and then reduced in...

Embodiment 2

[0038] The composite cemented carbide material of the present embodiment is made from the following components in parts by weight:

[0039] 40 parts of nano-titanium carbide, 15 parts of nano-titanium nitride, 9 parts of tungsten carbide, 8 parts of niobium carbide, 7 parts of silicon carbide, 5 parts of cobalt powder, 3 parts of yttrium oxide, 3 parts of aluminum carbide, and 5 parts of titanium powder. The particle size of the tungsten carbide is 2.0-5.0 μm, the particle size of the cobalt powder is 1.5-3.5 μm; the particle size of the titanium powder is 1.8-3.5 μm; the particle size of the yttrium oxide is 1.0-3.0 μm; the The particle size of niobium carbide, silicon carbide and aluminum carbide is 1.5-3.5 μm.

[0040]Nano-titanium carbide, nano-titanium nitride, tungsten carbide, niobium carbide, silicon carbide, cobalt powder, yttrium oxide, aluminum carbide, titanium powder weighed according to the above components are mixed evenly by dry ball milling, and then reduced i...

Embodiment 3

[0044] The composite cemented carbide material of the present embodiment is made from the following components in parts by weight:

[0045] 37 parts of nano-titanium carbide, 10 parts of nano-titanium nitride, 8 parts of tungsten carbide, 7 parts of niobium carbide, 5 parts of silicon carbide, 4 parts of cobalt powder, 2 parts of yttrium oxide, 2 parts of aluminum carbide, and 3 parts of titanium powder. The particle size of the tungsten carbide is 2.0-5.0 μm, the particle size of the cobalt powder is 1.5-3.5 μm; the particle size of the titanium powder is 1.8-3.5 μm; the particle size of the yttrium oxide is 1.0-3.0 μm; the The particle size of niobium carbide, silicon carbide and aluminum carbide is 1.5-3.5 μm.

[0046] Nano-titanium carbide, nano-titanium nitride, tungsten carbide, niobium carbide, silicon carbide, cobalt powder, yttrium oxide, aluminum carbide, titanium powder weighed according to the above components are mixed evenly by dry ball milling, and then reduced ...

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Abstract

The invention discloses a composite hard alloy material and a preparation method thereof. The composite hard alloy material is prepared from the following components in parts 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, 3-5 parts of cobalt powder, 1-3 parts of yttrium oxide, 1-3 parts of aluminium carbide and 1-5 parts of titanium powder. The composite hard alloy material has high strength, good toughness and good wear resistance and thermal shock resistance.

Description

technical field [0001] The invention relates to a composite hard alloy material and a preparation method thereof. Background technique [0002] 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. [0003] 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. [0004] Cermets have gone through three generations so far. The first generation was during the "World War II", Germany produced cermets with Ni bonded TiC; The wettability of other carbides improves the toughness of the material; the third generation of cermets introduces nitrid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C29/00C22C1/05C23C8/20
CPCC22C1/05C22C29/02C23C8/20
Inventor 郎宏彬
Owner CHENGDU BANGPU CUTTING TOOLS CO LTD
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