Aluminum oxide ceramic friction material prepared from aluminum profile industrial waste residue and preparation method thereof

A technology of alumina ceramics and industrial waste slag, which is applied in the field of preparing alumina ceramic friction materials from aluminum profile industrial waste slag, can solve the problems of high cation charge, high sintering temperature, and low diffusion coefficient, and achieve high activity, high mechanical strength, Good overall performance
CN102173753AInactive Publication Date: 2011-09-07SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2011-09-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for preparing an aluminum oxide ceramic friction material from aluminum profile industrial waste residue. The method comprises the following specific steps: (1) pretreating the aluminum profile industrial waste residue; (2) preparing the raw materials of the aluminum oxide ceramic friction material: preparing the raw materials, wherein the weight ratio of aluminum waste residue clinker to clay to talc to TiO2 to hexagonal boron nitride (BN) is (70-85):(5-20):(4-5):(1-2):4; performing the tertiary ball milling on the prepared raw materials, drying, and sieving with a 30-mesh sieve; (3) moulding the aluminum oxide ceramic friction material; and (4) sintering to obtain the aluminum oxide ceramic friction material. The friction material has the advantages of high mechanical strength and good friction and wear performance; the content of aluminum oxide in the aluminum profile industrial waste residue is up to 90%; the particles of the aluminum profile industrial waste residue are ultrafine and have high activity; and on the basis, a defined amount of sintering additive is added so as to effectively reduce the sintering temperature, save the energy and reduce the consumption.
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Description

technical field

[0001] The invention relates to a method for preparing an alumina ceramic friction material, in particular to a method for preparing an alumina ceramic friction material by using aluminum profile industrial waste slag. Background technique

[0002] At present, the treatment methods of industrial waste slag in my country are still relatively backward, mainly for agricultural use and simple landfill, which not only seriously affects the normal production of aluminum factories, causes secondary pollution, but also occupies a large amount of land, and makes many useful chemicals in waste slag Component loss and waste, so the treatment and comprehensive utilization of industrial waste residue in aluminum profile factories is very important.

[0003] al 2 o 3 Ceramics are cheap, have high elastic modulus, good wear resistance, chemical stability, high temperature stability and mechanical stability, and are currently the most widely used structural and functional c...

Claims

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