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High-aluminum-based composite material applied to automobile bearings

A composite material and automobile bearing technology, applied in the field of powder metallurgy, can solve problems such as gaps, and achieve the effects of less environmental pollution, improved adhesion, and simple production steps

Inactive Publication Date: 2016-01-20
LIXIN JIANGHUAI YANGTIAN AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although aluminum-based bearing materials have many excellent properties, there is still a big gap from practical application due to the limitations of aluminum-based powder metallurgy. Due to the problems in the manufacturing process, the quality of fired products needs to be improved, and further Improve performance Mass production expand its range of applications

Method used

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Embodiment Construction

[0014] A high aluminum-based composite material for automobile bearings, made of the following raw materials in parts by weight (kg): 85 aluminum, 5 zinc, 3 bismuth, 1 magnesium, 0.5 arsenic, 3 polytetrafluoroethylene powder, 0.8 molybdenum disulfide, Stearic acid 2, methyl cellulose 0.6, graphite 1, benzotriazole 1.5, caprolactam 1, phosphorus pentoxide 0.5, oleic acid amount;

[0015] The high-aluminum-based composite material for automobile bearings is prepared by the following specific steps:

[0016] (1) Pour aluminum, zinc, bismuth, magnesium and arsenic powder into a mortar, grind and mix evenly, then add the mixed powder to a ball mill, add an appropriate amount of alcohol for wet ball milling, and the ball milling speed is 20 rpm, After ball milling for 1 hour, the mixed powder is added to a vacuum oven, dried at 70°C and placed for subsequent use;

[0017] (2) Mix oleic acid and graphite into an ultrasonic oscillator to disperse evenly, then add the mixed powder pre...

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Abstract

The invention discloses a high-aluminum-based composite material applied to automobile bearings. The high-aluminum-based composite material is prepared from the following raw materials in parts by weight: 85-90 parts of aluminum, 5-8 parts of zinc, 3-4 parts of bismuth, 1-2 parts of magnesium, 0.5-1 part of arsenic, 3-4 parts of polytetrafluoroethylene powder, 0.8-1.5 parts of molybdenum disulfide, 2-3 parts of stearic acid, 0.6-1 part of methylcellulose, 1-1.5 parts of graphite, 1.5-2 parts of benzotriazole, 1-1.2 parts of caprolactam, 0.5-0.7 part of phosphorus pentoxide and a proper amount of oleic acid. The high-aluminum-based composite material is few in holes, excellent in structural stiffness, hardness, fatigue resistance performance and tensile strength performance, free of lead, low pollution to environment and simple in production steps; the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of powder metallurgy, in particular to a high-alumina-based composite material for automobile bearings. Background technique [0002] Metal sintered oil-impregnated bearings are a kind of sintered material made by powder metallurgy process with metal powder as raw material. Metal sintered oil-containing products are inherently porous, and have the advantage that the number, size and distribution of voids can be freely adjusted during the manufacturing process. Sintered metal oil-impregnated bearings have been widely used in many fields such as automobiles, household appliances, transportation machinery, agricultural machinery, instruments and meters. Sintered metal oil-impregnated bearings mainly used in modern industry can be divided into copper-based, iron-based, copper-iron-based, etc. according to the base material. Aluminum is one of the most widely distributed elements in the earth's crust, and its c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/10C22C1/05
Inventor 邵磊邵凤耀靳怀卫于永涛胡志国
Owner LIXIN JIANGHUAI YANGTIAN AUTOMOBILE
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