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A directionally strengthened solidified nano-alloy carbide and its strengthening method

A nano-alloy and carbide technology, applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., to achieve the effect of not wasting materials, improving wear resistance, and increasing service life

Active Publication Date: 2016-05-04
湘潭市润金新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The toughness of composite carbide materials is poor, far inferior to that of metal materials such as cast iron and cast steel, but the wear resistance, heat resistance and corrosion resistance of composite carbide materials are much higher than other materials, for example, The wear resistance of tungsten carbide is dozens of times that of general materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The directionally strengthened and solidified nano-alloy carbides in this embodiment include: 15% VC, 8% TiC, 2% Cu, and more than WC by weight percentage.

[0017] The above directionally strengthened and solidified nano-alloy carbides are infiltrated into the working surface of the liner at 900°C, and then cooled and formed.

[0018] The service life of the liner after reinforcement is nearly 5 times higher than that before reinforcement.

Embodiment 2

[0020] The directionally strengthened and solidified nano-alloy carbides in this embodiment include: 10% VC, 16% TiC, 5% Cu, and more than WC by weight percentage.

[0021] The above directionally strengthened and solidified nano-alloy carbides are infiltrated into the working surface of the liner at 1800°C, and then cooled and formed.

[0022] The service life of the liner after reinforcement is nearly 6 times higher than that before reinforcement.

Embodiment 3

[0024] The directionally strengthened and solidified nano-alloy carbides in this embodiment include: by weight percentage, 5% VC, 10% TiC, 3% Cu, and more than WC.

[0025] The above directionally strengthened and solidified nano-alloy carbides are infiltrated into the working surface of the liner at 1100°C, and then cooled and formed.

[0026] The service life of the liner after reinforcement is nearly 6 times higher than that before reinforcement.

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PUM

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Abstract

The invention discloses directional reinforced and solidified nano-alloy carbide and a reinforcing method of the directional reinforced and solidified nano-alloy carbide. The directional reinforced and solidified nano-alloy carbide comprises the following components by weight percent: 5%-15% of VC, 5%-16% of TiC, 2%-5% of Cu, and the rest of WC, and can also comprises 20%-30% of CrN or / and 10%-20% of Co, or 10%-20% of Ni. The reinforcing method of the directional reinforced and solidified nano-alloy carbide comprises the following steps: at 900-1800 DEG C, infiltrating the directional reinforced and solidified nano-alloy carbide into a local damageable part of a casting, and then cooling and molding. The directional reinforced and solidified nano-alloy carbide disclosed by the invention can greatly improve the wear resistance of the casting, so that the service life of the casting is prolonged by 5-10 times, and meanwhile in the process of reinforcement, the directional reinforced and solidified nano-alloy carbide is only used for the local damageable part, so that the used material is very little, but the service life of the product can be greatly prolonged, and energy conservation and consumption reduction can be truly achieved.

Description

technical field [0001] The invention relates to a composite nano-carbide, in particular to a directionally strengthened solidified nano-alloy carbide and a strengthening method thereof. Background technique [0002] The existing solidification molding technology is relatively mature, and the directional strengthening solidification technology can be used to produce various excellent properties such as excellent wear resistance, heat resistance, impact resistance, corrosion resistance, long fatigue life, and good creep resistance. of castings. Directional strengthening solidification technology is widely used in many fields such as aerospace, chemical industry, metallurgy and mining. In the parts of large equipment, the local wear resistance, heat resistance and corrosion resistance of the parts often affect or even determine the service life of the parts as a whole. If the wear resistance, heat resistance and corrosion resistance of these vulnerable parts can be enhanced p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C29/08C23C2/00B82Y30/00
Inventor 陈自立
Owner 湘潭市润金新材料有限公司