Use of a copper zinc alloy

Inactive Publication Date: 2008-09-11
DIEHL METAL STIFTUNG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010]Apart from the low friction coefficient and a good wear resistance, it has been found that the claimed copper zinc alloy has a surprisingly g

Problems solved by technology

However, a high friction coefficient is disadvantageous for the use of a material as a sliding bearing, since a high friction coefficient describes

Method used

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Embodiment Construction

[0012]The alloy has a microstructure which comprises an alpha mixed crystal component and a beta mixed crystal component.

[0013]In an advantageous development, the copper zinc alloy for use as a material for sliding bearings comprises 68-72.5% copper, 5.8-8.5% manganese, 3.6-6.3% aluminum, 0.5-3.3% silicon, 0.2-2.5% iron, 0.2-1.9% lead, 0-1.5% nickel, 0-0.4% tin, residual zinc and unavoidable impurities.

[0014]The microstructure of the developed alloy produced according to DE 29 19 478 C2 comprises an alpha and beta mixed crystal matrix with up to 60-85% alpha phase. The microstructure also includes hard intermetallic compounds, for example iron-manganese silicides. The alpha phase is decisive for the thermal stability of the alloy.

[0015]Sliding bearings of this alloy have a particularly high wear resistance, which is even much higher than that of the alloy CuZn31Si1. The low dry frictional wear in the case of sliding bearings of said alloy results in better behavior under inadequate ...

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Abstract

A copper zinc alloy that is used as a material for a sliding bearing wherein the alloy comprises 59-73% copper, 2.7-8.5% manganese, 1.5-6.3% aluminum, 0.2-4% silicon, 0.2-3% iron, 0-2% lead, 0-2% nickel, 0-0.4% tin, residual zinc and unavoidable impurities.

Description

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Claims

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Application Information

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Owner DIEHL METAL STIFTUNG & CO KG
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