Worm-type graphite-filled structure wear-resistant plate and preparation method thereof

Abstract

The invention provides a worm-type graphite-filled structure wear-resistant plate and a preparation method thereof. The worm-type graphite-filled structure wear-resistant plate comprises a substrate,a wear-resistant layer and a plurality of graphite fillers formed in the wear-resistant layer; the wear-resistant layer is made of a mixture of copper-tin alloy powder and expandable graphite; and themixture of the copper-tin alloy powder and expandable graphite is composed of copper powder, tin powder, and expandable graphite. The mixture of the copper-tin alloy powder and the expandable graphite is sintered onto the substrate, the wear-resistant layer is pressurized while sintering, and the load loaded during pressurization is 0.1 to 0.3MPa. Through the preparation method of the invention,while maintaining the original mechanical strength, the oil content of the wear-resistant plate is increased from the original 20% to more than 30%, so as to obtain better self-lubricating property, lower friction coefficient, and the wear-resistant plate can be used in more severe use environments. The invention further provides a preparation method of the worm-type graphite-filled structure wear-resistant plate.

Description

technical field [0001] The invention relates to the technical field of wear-resistant plate manufacturing, in particular to a wear-resistant plate with a worm-type graphite-filled structure and a preparation method thereof. Background technique [0002] Through special modification, wear-resistant composite materials are widely used in the field of friction materials due to their excellent anti-friction and wear-resistant properties, and have excellent characteristics such as shock absorption and shock absorption, low noise, light weight, and easy processing. [0003] With the wide application of wear-resistant composite materials, customer design requirements and working condition requirements are getting higher and higher, especially in the case of higher load-carrying capacity requirements, and its wear resistance to materials is also higher. Composite materials are hardly up to the task. [0004] Because with the development of science and technology, wear-resistant pla...

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Problems solved by technology

The inlaid graphite wear-resistant plate has good mechanical strength, but due to its structural characteristics, the lubricating performance is average, the oil content is very low, and the friction coefficient is usually high, so it is not suitable for working conditions with high linear speed.

[0006] Therefore, increasing the solid lubricant filling and oil content will significantly improve the anti-friction performance of the wear-resistant material and obtain better friction and wear resistance, but the increase in the solid lubricant filling and oil content will significantly reduce the overall mechanical strength of the wear-resistant material. Therefore, in the current wear-resistant plate industry, how to obtain better solid lubrication filling and oil content under the premise of ensuring mechanical properties is an important research topic

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