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Maintenance-free slide bearing with FEP or PFA in the adhesive layer

A technique for sliding bearings and adhesive layers, applied in the field of maintenance-free sliding bearings

Active Publication Date: 2014-01-08
SAINT GOBAIN PERFORMANCE PLASTICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for various reasons (including environmental issues, etc.), this process has certain problems

Method used

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  • Maintenance-free slide bearing with FEP or PFA in the adhesive layer
  • Maintenance-free slide bearing with FEP or PFA in the adhesive layer
  • Maintenance-free slide bearing with FEP or PFA in the adhesive layer

Examples

Experimental program
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Effect test

Embodiment

[0055] 180°T-peel test

[0056] The 180° T-peel test is described in DIN EN 1895, the entire content of which is hereby incorporated. Prepare sample strips with a five-layer structure. The settings for the layers are: Steel Backing, Adhesive, Slide Layer, Adhesive, Steel Backing. The width of the sample strips is 25mm. Fix the clamps at one end to opposing steel outer edges. The steel backing was pulled apart and the peel force to separate the steel backing was measured.

[0057]In one experiment, strips with pure FEP or pure PFA were selected as the material for the adhesive layer. In another experiment, blends of FEP and PFA in various ratios were chosen as the material for the adhesive layer. Cold-rolled steel grade 1.0338 was chosen as the metal backing layer and a PTFE compound tape with a filler content of 25% was chosen as the sliding layer.

[0058] Such as figure 2 As demonstrated by the experimental results shown, the blends of FEP and PEA have significantly ...

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PUM

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Abstract

Slide bearings and methods of producing slide bearings are disclosed. The slide bearing has a metal support, an adhesive layer and a sliding layer. The adhesive layer is applied directly to the metal support. The adhesive layer comprises a blend of at least two fluoropolymers P1 and P2, wherein P1 is selected from perfluoroalkoxyethylene (PFA) or tetrafluoroethylene-hexafluoropropylene (FEP). P2 is different from P1 and can be a fluoropolymer.

Description

technical field [0001] The invention relates to a maintenance-free sliding bearing comprising a metal support, a binder layer comprising a blend of fluoropolymers applied directly to said metal support and a sliding bearing applied to the intermediate layer. layer. Background technique [0002] Maintenance-free plain bearings with a layer structure (comprising metallic carrier material and intermediate and sliding layers applied thereto) have long been known in various forms from the prior art and are used in various technical fields, for example in the field of automotive engineering . [0003] EP0394518A1 describes a multilayer plain bearing material in which the metal support material preferably consists of cold-rolled steel on which a layer of a copolymer of perfluoro(alkyl vinyl ether) and tetrafluoroethylene is applied as middle layer. A sliding layer made of PTFE compound is applied successively to the intermediate layer. In such plain bearing materials, the inter...

Claims

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Application Information

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IPC IPC(8): F16C33/20F16C33/04C09D127/18
CPCF16C2208/40F16C2208/52F16C2208/32F16C2208/30C22C9/02F16C33/206F16C33/201C22C21/00F16C2208/36F16C33/208F16C2208/60F16C2208/22C22C38/00C09J127/18C08L27/18C08L2205/02B32B7/12B32B2307/746B32B15/082B32B15/085B32B27/08B32B27/322B32B2255/06B32B2255/205B32B2475/00F16C2226/40F16C2240/60Y10T156/1039Y10T156/1052F16C33/20C09D127/18F16C33/04F16C33/00F16C33/02
Inventor J·齐格勒O·施密特杰斯J·海德曼
Owner SAINT GOBAIN PERFORMANCE PLASTICS CORP
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