A casting anti-friction and wear-resistant high-aluminum zinc-based composite material and its preparation method

A composite material, high-aluminum-zinc-based technology, which is applied in the field of high-aluminum-zinc-based composite materials, can solve the problems that the lubrication and friction reduction effect is not obvious, the friction reduction and wear resistance performance needs to be improved, and the scope of application has not been strengthened. Good, reduce equipment investment and labor maintenance costs, improve the effect of infiltration
CN109778014BActive Publication Date: 2020-09-08WUHAN UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN UNIV OF SCI & TECH
Publication Date
2020-09-08

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Abstract

The invention relates to a casting anti-friction and abrasion-resistant high aluminum zinc-based composite material and a preparation method thereof. The technical scheme is that the composite material takes zinc and aluminum as the base, and takes copper and magnesium as main alloy elements; trace alloy elements of strontium, titanium, boron, rare earth lanthanum and the like, and micron siliconcarbide and micron graphite non-metallic ceramic reinforcement particles are added, smelting is carried out, and thus substrate molten liquid is obtained; and the substrate molten solution is subjected to the deep processing technology of powder spraying, stirring and ultrasonic combined treatment so that the silicon carbide particles with abrasion-resistant performance and the graphite particleswith anti-friction performance can be well immersed in the substrate molten liquid and be uniformly dispersed and distributed in the composite material accordingly, and thus the fine-grained casting anti-friction and abrasion-resistant high aluminum zinc-based composite material obtained. The casting anti-friction and abrasion-resistant high aluminum zinc-based composite material has the characteristics of simple technology and low preparation cost. The reinforcement particles of the prepared product are uniformly distributed, and the composite material are excellent in plasticity, toughness and abrasion resistance, and stable in quality.
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Description

technical field

[0001] The invention relates to the technical field of a high-aluminum zinc-based composite material. In particular, it relates to a casting anti-friction and wear-resistant high-aluminum zinc-based composite material and a preparation method thereof. Background technique

[0002] ZA27 alloy has the best comprehensive performance among the currently applied Zn-Al series alloys. It has high strength, excellent friction and wear properties, good machining performance and casting process performance, and its cost is low and has been successful in the industry. It replaces the use of tin bronze material as sliding wear-resistant parts, thus saving the scarce copper resources in our country. However, due to the temperature rise of high-aluminum-zinc alloys during high-speed, heavy-load and long-term friction processes, the wear resistance at high temperatures is greatly reduced, which limits the promotion and application of this material to a large extent. A com...

Claims

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