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Wide-adaptability double-mechanism self-lubricating bearing material

A self-lubricating bearing and dual-mechanism technology, applied in the field of powder metallurgy, can solve problems such as gaps, achieve stable performance, excellent resistance to dry wear, and reduce shrinkage

Inactive Publication Date: 2016-03-16
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 wide-adaptation double-mechanism self-lubricating bearing material, made of the following raw materials in parts by weight (kg): aluminum 85, zinc 5, copper 3, tin 1, boron 0.5, polytetrafluoroethylene powder 3, molybdenum disulfide 0.8, Stearic acid 2, methyl cellulose 0.6, graphite 1, talcum powder 1, paraffin 0.6, iron powder 0.5, oleic acid amount;

[0015] Said a wide-adaptive double-mechanism self-lubricating bearing material is prepared by the following specific steps:

[0016] (1) Pour aluminum, zinc, copper, tin and boron powder into a mortar and grind them 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, 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 prepared in step (1) and ult...

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PUM

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Abstract

The invention discloses a wide-adaptability double-mechanism self-lubricating bearing material. The material is prepared from, by weight, 85-90 parts of aluminum, 5-8 parts of zinc, 3-4 parts of copper, 1-2 parts of tin, 0.5-1 part of boron, 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, 1-1.5 parts of talcum powder, 0.6-0.9 part of paraffin, 0.5-0.7 part of iron powder and an appropriate amount of oleic acid. The prepared material has good performance such as dry-grinding resistance, self-lubrication and inadhesion, and is uniform in structure and stable in performance.

Description

technical field [0001] The invention relates to the technical field of powder metallurgy, in particular to a self-lubricating bearing material with wide adaptability and dual mechanisms. 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 c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/05C22C21/10
CPCC22C1/05C22C21/10C22C32/0084C22C32/0089B22F2998/10B22F1/10B22F3/10B22F3/04
Inventor 邵磊邵凤耀靳怀卫于永涛胡志国
Owner LIXIN JIANGHUAI YANGTIAN AUTOMOBILE
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