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Sol powder metallurgy material and preparation method thereof

A powder metallurgy and sol technology, applied in the metallurgy field, can solve problems such as scratches, friction noise, etc., and achieve the effect of improving bond strength and sintering stability

Inactive Publication Date: 2018-08-17
胡佳佳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the strong rigidity and hardness of the powder metallurgy friction material, it is easy to cause scratches and friction noise on the brake disc or drum of the automobile.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A kind of sol powder metallurgy material, it is made up of the raw material of following percentage by weight:

[0017] Tetraethyl orthosilicate 17%, alumina 3%, lead powder 0.1%, ricinoleic acid 0.5%, 8-hydroxyquinoline copper 0.1%, zinc cyanurate 0.1%, ethoxylated alkylammonium sulfate 0.1%, Nickel powder 4%, manganese powder 2%, and the rest is iron.

[0018] A preparation method of sol powder metallurgy material, comprising the following steps:

[0019] (1) Take 8-hydroxyquinoline copper, add it to 6 times its weight in absolute ethanol, stir evenly, raise the temperature to 55 ° C, keep stirring for 10 minutes, and obtain an alcohol solution;

[0020] (2) Mix ethoxylated alkyl ammonium sulfate and ethyl orthosilicate, add it to 17 times the deionized water of the mixture, stir evenly, mix with the above alcohol solution, stir and react for 2 hours, add zinc cyanurate, Ultrasound for 5 minutes to obtain a sol dispersion;

[0021] (3) Take ricinoleic acid, add it ...

Embodiment 2

[0025] A kind of sol powder metallurgy material, it is made up of the raw material of following percentage by weight:

[0026] Tetraethyl orthosilicate 20%, alumina 4%, lead powder 0.2%, ricinoleic acid 0.7%, 8-hydroxyquinoline copper .2%, zinc cyanurate 0.3%, ethoxylated alkyl ammonium sulfate 0.4% , 7% nickel powder, 5% manganese powder, and the rest is iron.

[0027] A preparation method of sol powder metallurgy material, comprising the following steps:

[0028] (1) Take 8-hydroxyquinoline copper, add it to 9 times its weight in absolute ethanol, stir evenly, raise the temperature to 60°C, keep stirring for 10 minutes, and obtain an alcohol solution;

[0029] (2) Mix ethoxylated alkyl ammonium sulfate and ethyl orthosilicate, add to deionized water 20 times of the mixture, stir evenly, mix with the above alcohol solution, stir and react for 3 hours, add zinc cyanurate, Ultrasound for 10 minutes to obtain a sol dispersion;

[0030] (3) Take ricinoleic acid, add it to the ...

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Abstract

The invention discloses a sol powder metallurgy material. The material is composed of the following raw materials of, by weight, 17-20% of ethyl orthosilicate, 3-4% of aluminum oxide, 0.1-0.2% of leadpowder, 0.5-0.7% of ricinoleic acid, 0.1-0.2% of 8-hydroxyquinoline copper, 0.1-0.3% of zinc cyanurate, 0.1-0.4% of ethoxylated alkyl ammonium sulfate, 4-7% of nickel powder, 2-5% of manganese powder, and the balance iron. According to the material, the ethyl orthosilicate is taken as a precursor to hydrolyze in an alcohol aqueous solution containing the 8-hydroxyquinoline copper to obtain antibacterial sol, then the antibacterial sol is blended with the ricinoleic acid, high-temperature esterification is carried out, so that bonding strength of the sol is improved, and sintering stability ofa finished product metallurgy material is enhanced.

Description

technical field [0001] The invention belongs to the field of metallurgy, and in particular relates to a sol powder metallurgy material and a preparation method thereof. Background technique [0002] Powder metallurgy friction materials, also known as sintered friction materials, mainly include copper-based and iron-based, which are made of metal powder as the matrix, adding appropriate friction reducing agents and abrasives, uniformly mixed, and then pressed into shape or pressure sintered. Powder metallurgy friction materials are generally composed of three components: matrix components, mainly Cu, Fe, Ni, Sn, etc. and their alloys; friction components, mainly SiO2, Al2O3, SiC, some metal and non-metallic Oxides or carbides; lubricating components, mainly graphite, MoS2, CaF2, WS2, BN and fusible metals Pb, Bi, etc. Powder metallurgy friction material is an excellent braking friction material, especially for heavy-duty high-speed braking occasions, its excellent heat dissi...

Claims

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Application Information

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IPC IPC(8): B22F1/00C22C33/02
CPCC22C33/006C22C33/02B22F2998/10B22F1/10B22F3/10B22F3/02
Inventor 不公告发明人
Owner 胡佳佳
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