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

A wear-resistant plate and graphite technology, which is applied in the field of wear-resistant plate manufacturing, can solve the problems of low oil content, reduced mechanical strength of wear-resistant materials, and high friction coefficient, and achieves the effect of high oil content and good self-lubricating performance.

Active Publication Date: 2020-08-25
ZHEJIANG CHANGSHENG SLIDING BEARINGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 t

Method used

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

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preparation example Construction

[0033] Such as image 3 As shown, the present invention also provides a method for preparing the worm-type graphite-filled structure wear-resistant plate, which includes the following steps:

[0034] S1: It is made by providing a mixture of copper-tin alloy powder and expandable graphite. The content of copper powder in the mixture of copper-tin alloy powder and expandable graphite is 83.5-89.5%, and the content of tin powder is 10% ~15%, the content of the expandable graphite is 0.5-1.5%, and the mesh number of the expandable graphite is 600-800 mesh;

[0035] S2: provide a substrate 10;

[0036] S3: spread the mixture of the copper-tin alloy powder and the expandable graphite evenly on the surface of the substrate 10;

[0037] S4: a pressure plate is provided; the pressure plate can be made of metal material;

[0038] S5: Covering the pressure plate on the substrate 10 covered with the mixture of the copper-tin alloy powder and expandable graphite;

[0039] S6: Put the c...

Embodiment

[0042] Provide the mixture of copper-tin alloy powder and expandable graphite, the content of copper powder in the mixture of copper-tin alloy powder and expandable graphite is 87%, the content of tin powder is 12%, the The content of expandable graphite is 1.0%, and the mesh number of the expandable graphite is 600-800 mesh; strictly follow the heating curve to raise the temperature of the high-temperature sintering furnace to 930 at a rate of 2.5°C / min after reaching 350°C ℃, and a load of 0.25 MPa is applied to the pressurized plate while sintering to obtain the worm-type graphite-filled structure wear-resistant plate.

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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...

Claims

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Application Information

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IPC IPC(8): B22F7/04B22F1/00B22F3/14B22F3/26C22C9/02
CPCB22F1/0003B22F7/04B22F3/14C22C9/02B22F3/26
Inventor 薛庆云孙志华
Owner ZHEJIANG CHANGSHENG SLIDING BEARINGS
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