Aluminium alloy for sliding bearing

A technology of sliding bearings and aluminum alloys, which is applied in the field of material science and can solve problems such as complex equipment processes

Inactive Publication Date: 2007-12-05
王士忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the equipment process is complex

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: As shown in the above table, using ordinary smelting equipment, adding various components by weight percentage described in Example 1 in the above table to industrial pure aluminum to smelt the aluminum alloy, and casting the obtained alloy to obtain the blank of the sliding bearing. The test result of random sampling in Example 1 of the present invention shows that: the tensile strength average value is 130N / mm 2 , The average elongation is 10%, and the average Brinell hardness is 50HB.

Embodiment 2

[0029] Example 2: As shown in the above table, ordinary smelting equipment is used to melt industrial pure aluminum by adding the various components described in Example 2 in the above table to smelt an aluminum alloy, and casting the obtained alloy to obtain a sliding bearing blank. The test result of invention embodiment 2 random sampling shows: tensile strength average value is 131N / mm 2 , The average elongation is 9.8%, and the average Brinell hardness is 49HB.

Embodiment 3

[0030] Example 3: As shown in the above table, ordinary smelting equipment is used to melt industrial pure aluminum by adding the various components described in Example 3 in the above table to smelt the aluminum alloy, and the obtained alloy can be cast and formed to obtain a sliding bearing. The test result of invention embodiment 3 random sampling shows: tensile strength average value is 133N / mm 2 , The average elongation is 11%, and the average Brinell hardness is 51HB.

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Abstract

The present invention relates to one kind of aluminum alloy for sliding bearing, and belongs to the field of material science. The chemical composition of the aluminum alloy includes Sn 5.0-8.0 wt%, Cu 1.5-2.5 wt%, Ni 0.6-1.9 wt%, S 0.2-0.8 wt%, Fe 0.3-0.7 wt%, Mn 0.05-0.1 wt%, Mg 0.4-0.9 wt%, Ti 0.1-0.5 wt% and Zn 0.4-0.7 wt%. The aluminum alloy has properly regulated components and added Mn and Zn components, and possesses good physical performance and high lipophilicity.

Description

technical field [0001] The invention relates to an alloy, in particular to an aluminum alloy for sliding bearings, and belongs to the field of material science. Background technique [0002] The working conditions of the sliding bearings of various internal combustion engines, compressors, and mechanical transmissions are relatively complicated. When working, the friction generated by axial pressure and radial rotation is relatively large, which not only affects the hardness, tensile strength, and The elongation and layer strength have higher requirements, and there are also certain requirements for the fatigue resistance and good compliance of the alloy. The hardness and wear resistance of the currently used aluminum alloys can basically meet the requirements, but from the perspective of more and higher requirements of the industry, the replacement cycle is too short, and it is difficult to improve the service life. Another example is the Chinese patent (patent number: CN9...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00
Inventor 王士忠
Owner 王士忠
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