Layered composite material for sliding elements, method for producing same and use thereof

A technology for composite materials and sliding elements, which is applied to the layered composite materials used for sliding elements. It is used for the production of the composite materials and its application fields. It can solve the problems of insufficient strength of the sliding layer and achieve high hardness and high durability. Corrosion, effect of improving sliding ability

Inactive Publication Date: 2013-05-01
FEDERAL MOGUL WIESBADEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the other hand, sliding layers made of tin or tin alloys are not strong enough for some applications
Furthermore, with the solution proposed in DE19728777A1 incorporating hard material particles, the wear resistance of certain sliding layers may be increased, but the sliding properties and strength still need to be improved

Method used

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  • Layered composite material for sliding elements, method for producing same and use thereof
  • Layered composite material for sliding elements, method for producing same and use thereof
  • Layered composite material for sliding elements, method for producing same and use thereof

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Embodiment Construction

[0016] In the sense of the present invention, a sliding element means: an element having a sliding surface in sliding contact with a mating end face. Sliding elements according to the invention are preferably sliding bearings, bushings, cylinders, pistons, pins, seals, valves and pressure cylinders. Particularly preferably the sliding element according to the invention is a sliding bearing, in particular for an internal combustion engine, eg a crankshaft bearing, a camshaft bearing or a connecting rod bearing.

[0017] Plain bearings generally have the following layer structure: a support made of steel (material of the plain bearing), a base or bearing metal layer (the so-called substrate), optionally a dam or diffusion barrier layer and a metal or metal alloy made sliding layer. The bearing metal layer can be, for example, a copper alloy layer, in particular a sintered or cast copper alloy layer. The sliding layer can, for example, be galvanized.

[0018] Due to the extrem...

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PUM

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Abstract

The invention relates to a layered composite material for sliding elements, comprising a base layer, applied to the surface of a sliding element, made of an alloy comprising copper or aluminum and a sliding layer situated over said layer, wherein the sliding layer comprises 90-99.6 wt % of tin or tin alloy having a tin ratio of greater than 60 wt % and 0.2-6 wt % solid lubricant particles having a Mohs hardness of equal to or smaller than 3 and a particle size of equal to or smaller than 10 [mu]m. The invention further relates to the production of said layered composite material and to use thereof for sliding bearings.

Description

technical field [0001] The invention relates to a layered composite material for sliding elements, in particular sliding bearings, comprising: a base layer made of an alloy containing copper or aluminium, applied to the surface of the sliding element, and arranged on said layer The sliding layer, wherein the sliding layer includes: 90-99.6wt.-% tin or a tin alloy with a tin proportion of more than 60wt.-%, and 0.2-6wt.-% has a Mohs hardness of 3 or less and is less than or equal to Solid lubricant particles with a particle size of 10 μm. The invention also relates to a method for producing the layered composite material and the use of the layered composite material. Background technique [0002] Sliding elements exposed to mechanical stress in the form of friction (for example, plain bearings for internal combustion engines) must have good sliding properties, sufficient hardness, low tendency to wear (seizing) and sufficient wear resistance as well as high corrosion resista...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C28/02C25D3/30C25D3/32C25D15/00C25D15/02F16C33/12
CPCF16C33/124C25D15/02F16C9/00F16C2360/18C25D3/30C25D5/10C25D3/32C25D15/00C25D7/10C23C28/02F16C33/1095C25D5/627Y10T428/12708Y10T428/12715
Inventor 克劳斯·史塔夏可茱莉·马果曼朱
Owner FEDERAL MOGUL WIESBADEN
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