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Ceramic reinforced steel-based wear-resisting composite and preparation method thereof

A technology of composite materials and ceramics, applied in the field of wear-resistant composite materials, can solve problems such as performance improvement, achieve good impact resistance and wear resistance, avoid overall shedding, and simple preparation methods

Active Publication Date: 2019-08-02
安徽中建材开源新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for harsh wear conditions (such as high temperature, high-speed friction and wear, etc.) in modern technology, its performance still needs to be further improved.

Method used

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  • Ceramic reinforced steel-based wear-resisting composite and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A ceramic-reinforced steel-based wear-resistant composite material proposed by the present invention is prepared by casting alloy steel metal liquid and casting and infiltrating ceramic prefabricated body by casting infiltration method;

[0023] Among them, the alloy steel is ZGMn13Cr2 high manganese steel;

[0024] The ceramic prefabricated body is made up of the raw material of following percentage by weight: spherical ceramic particle 55wt%, non-spherical polyhedron ceramic particle 40wt%, binder 5wt%; Wherein, spherical ceramic particle is spherical WC ceramic particle, particle size is 0.5mm; non-spherical polyhedron The ceramic particles are polyhedral alumina ceramic particles with a particle size of 0.8mm; the binder is an epoxy resin binder or a phenolic liquid resin binder; the volume fraction of the ceramic particles in the ceramic preform in the composite material is 18vt%;

[0025] The present invention also proposes a method for preparing the ceramic-reinf...

Embodiment 2

[0030] A ceramic-reinforced steel-based wear-resistant composite material proposed by the present invention is prepared by casting alloy steel metal liquid and casting and infiltrating ceramic prefabricated body by casting infiltration method;

[0031] Among them, the alloy steel is ZGMn13Cr2 high manganese steel;

[0032] The ceramic prefabricated body is made up of the raw material of following percentage by weight: spherical ceramic particle 49wt%, non-spherical polyhedral ceramic particle 49wt%, binding agent 2wt%; Wherein, spherical ceramic particle is spherical ZTA ceramic particle, particle size is 0.7mm; non-spherical polyhedral The ceramic particles are polyhedral WC ceramic particles with a particle size of 1.5mm; the binder is an epoxy resin binder or a phenolic liquid resin binder; the volume fraction of the ceramic particles in the ceramic preform in the composite material is 20vt%;

[0033] The present invention also proposes a method for preparing the ceramic-re...

Embodiment 3

[0038] A ceramic-reinforced steel-based wear-resistant composite material proposed by the present invention is prepared by casting alloy steel metal liquid and casting and infiltrating ceramic prefabricated body by casting infiltration method;

[0039] Among them, the alloy steel is ZGMn13Cr2 high manganese steel;

[0040] The ceramic prefabricated body is made up of the raw material of following percentage by weight: spherical ceramic particle 46wt%, non-spherical polyhedral ceramic particle 50wt%, binding agent 4wt%; Wherein, spherical ceramic particle is spherical ZTA ceramic particle, particle size is 0.6mm; non-spherical polyhedral The ceramic particles are polyhedral alumina ceramic particles with a particle size of 1.3mm; the binder is an epoxy resin binder or a phenolic liquid resin binder; the volume fraction of the ceramic particles in the ceramic preform in the composite material is 23vt%;

[0041] The present invention also proposes a method for preparing the ceram...

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Abstract

The invention discloses a ceramic reinforced steel-based wear-resisting composite and a preparation method thereof, and relates to the technical field of wear-resisting composites. The ceramic reinforced steel-based wear-resisting composite is prepared and obtained by pouring alloy steel molten metal to carry out casting infiltration on a ceramic prefabricated body through a casting infiltration method. The ceramic prefabricated body comprises, by weight percent, 40%-55% of spherical ceramic particles, 40%-55% of non-spherical polyhedral ceramic particles and 2%-5% of a binding agent, wherein0.5 mm<=the particle size of the spherical ceramic particles<the particle size of the non-spherical polyhedral ceramic particles<=1.5 mm. In the ceramic reinforced steel-based wear-resisting compositeand the preparation method thereof, the spherical ceramic particles cooperate with the non-spherical polyhedral ceramic particles, the particle sizes of the spherical ceramic particles and the non-spherical polyhedral ceramic particles are controlled, a unique toughening function is formed among the spherical ceramic particles, the non-spherical polyhedral ceramic particles and an alloy steel matrix, the prepared composite shows good impact resistance and wear resistance, and the functions of cutting and furrowing of grinding materials can be effectively resisted; and the preparation method is simple, and the prepared composite is suitable for being used for manufacturing hammer heads, liner plates, grinding rollers, millstones and other wear-resisting work components.

Description

technical field [0001] The invention relates to the technical field of wear-resistant composite materials, in particular to a ceramic-reinforced steel-based wear-resistant composite material and a preparation method thereof. Background technique [0002] Wear-resistant steel parts are mainly used in abrasive wear conditions in mining, metallurgy, electric power, coal and machinery industries, such as hammer heads, liners, grinding balls, grinding rollers, grinding discs, etc. Ore, soil and other materials and grinding bodies are strongly worn, and the failure is very rapid. [0003] The wear failure of most wear-resistant parts usually occurs in a certain thickness or some specific parts of the wear-resistant working surface, which not only requires the wear-resistant working surface to have high hardness, but also requires the entire wear-resistant part to have high toughness and be able to resist impact , do not break. It is difficult for wear parts made of traditional m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D19/08C22C33/04C21D1/18
CPCB22D19/085C22C33/04C21D1/18
Inventor 汪德发徐超张国芳李英虎翟健余芳有赵文定陈友梅
Owner 安徽中建材开源新材料科技有限公司
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