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Aluminum-based composite bearing material with high corrosion resistance

An aluminum-based composite and bearing material technology, applied in the field of powder metallurgy, can solve problems such as gaps, and achieve the effects of low production cost, high product yield, high bearing capacity and fatigue resistance

Inactive Publication Date: 2016-01-20
LIXIN JIANGHUAI YANGTIAN AUTOMOBILE
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  • 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-corrosion-resistant aluminum-based composite bearing material, made of the following raw materials in parts by weight (kg): aluminum 85, zinc 5, carbon 3, chromium 1, silicon 0.5, polytetrafluoroethylene powder 3, molybdenum disulfide 0.8 , stearic acid 2, methyl cellulose 0.6, graphite 1, petroleum pitch 1.2, glass fiber 1, titanium nitride 0.4, oleic acid amount;

[0015] The high-corrosion-resistant aluminum-based composite bearing material is prepared by the following specific steps:

[0016] (1) Pour aluminum, zinc, carbon and chromium 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, the ball milling speed is 20 rpm, and the ball milling is 1h Finally, the mixed powder is added to a vacuum drying oven and placed for subsequent use after being dried at 70°C;

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

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Abstract

The invention discloses an aluminum-based composite bearing material with high corrosion resistance. The aluminum-based composite bearing 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 carbon, 1-2 parts of chromium, 0.5-1 part of silicon, 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, 1.2-2 parts of petroleum asphalt, 1-2 parts of glass fiber, 0.4-0.5 part of titanium nitride and a proper amount of oleic acid. The aluminum-based composite bearing material prepared by the invention can be continuously and efficiently produced in batches; the product is high in yield, high in size accuracy, low in production cost, high in comprehensive mechanical performance, high in abrasion resistance and corrosion resistance, high in bearing capability, high in fatigue resistance and worthy to popularize.

Description

technical field [0001] The invention relates to the technical field of powder metallurgy, in particular to an aluminum matrix composite bearing material with high corrosion resistance. 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 cru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/10C22C1/05B22F1/00
Inventor 邵磊邵凤耀靳怀卫于永涛胡志国
Owner LIXIN JIANGHUAI YANGTIAN AUTOMOBILE
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