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Sliding member and method for manufacturing same

A technology of sliding components and components, which is applied in the direction of chemical instruments and methods, anti-centrifugal force rotating parts, bearing components, etc., and can solve the problems that the performance of the resin layer cannot be fully utilized.

Active Publication Date: 2021-09-14
DAIDO METAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem that the uniform dispersion of additive materials is not necessarily the most suitable value for the reduction of the friction coefficient and wear resistance, and the performance of the resin layer cannot be fully exerted.

Method used

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  • Sliding member and method for manufacturing same
  • Sliding member and method for manufacturing same
  • Sliding member and method for manufacturing same

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Embodiment Construction

[0035] Hereinafter, a sliding member according to one embodiment will be described based on the drawings.

[0036] like figure 1 As shown, the sliding member 10 has a resin layer 11 , an intermediate layer 12 and a backing layer 13 . The resin layer 11 has polytetrafluoroethylene (PTFE) and additive materials. The intermediate layer 12 is provided between the resin layer 11 and the backing layer 13 . The intermediate layer 12 is a porous layer formed by sintering metal particles 14 such as copper. The resin layer 11 is formed on the side of the porous intermediate layer 12 opposite to the backing layer 13 and impregnated in the intermediate layer 12 . As a result, the resin layer 11 is impregnated into the intermediate layer 12 , and part of it reaches the backing layer 13 . The backing layer 13 is formed of metal or alloy such as iron or steel. The sliding member 10 has an end surface 15 on the surface of the resin layer 11 , that is, on the side of the resin layer 11 op...

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Abstract

A sliding member (10) has a resin layer (11) that slides with a target member. The resin layer (11) comprises polytetrafluoroethylene and an additive material. In the resin layer (11), a plurality of rich regions (21) having a higher polytetrafluoroethylene concentration than other regions are formed in the thickness direction of the resin layer (11).

Description

technical field [0001] The present invention relates to a sliding member and a method of manufacturing the same. Background technique [0002] The sliding member may have a resin layer on the sliding surface side that slides with the target member. In order to reduce frictional resistance, the resin layer generally uses a resin with a small coefficient of friction. On the other hand, since resins have lower wear resistance than metals, improvements in wear resistance have been sought by adding various additives. In Patent Document 1, an inorganic substance having cleavability is added to the resin to suppress an increase in the coefficient of friction during steady wear and to improve wear resistance. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Laid-Open No. 2013-194104. [0006] The problem to be solved by the invention [0007] Such additives are uniformly dispersed in the resin as the base material for forming ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32B32B27/06B32B5/16B32B33/00C10M169/04C10N30/06
CPCB32B27/322B32B27/06B32B5/16B32B33/00C10M169/04C10M2213/0623C10M2201/081C10M2201/066C10M2201/062C10M2201/084F16C33/205F16C33/208F16C2208/32F16C2202/04F16C2208/02F16C2240/60F16C33/201Y10T428/24942Y10T428/2982
Inventor 岩田强志
Owner DAIDO METAL CO LTD