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Self-lubricating metal ceramic bearing good in abrasion resistance and preparing method of self-lubricating metal ceramic bearing

A cermet, self-lubricating technology, applied in metal processing equipment, coating, transportation and packaging, etc., can solve the problems of affecting the service life of bearings, failing to meet the bearing strength requirements, affecting the strength of cermets, etc., to improve the bonding strength , Reduce interface effect, not easy to wear

Inactive Publication Date: 2016-03-09
ANHUI SILVER BALL BEARING
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AI Technical Summary

Problems solved by technology

[0004] However, the metal and ceramic phases are directly sintered, and its boundary effect will affect the strength of the cermet, thereby affecting the service life of the bearing
The ratio of raw materials given in the article cannot meet the strength requirements of the bearing under high load conditions, and needs to be improved

Method used

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Examples

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Effect test

Embodiment Construction

[0013] A self-lubricating cermet bearing with good wear resistance, made of the following raw materials in parts by weight (kg): iron citrate 2.3, basic nickel carbonate 3.1, sodium borohydride 0.5, water 25, ammonia water, TiH 2 2.9, TiC14, cadmium selenide 0.6, nano tungsten trioxide 1.1, zirconia powder 0.9, gallium chloride 0.6, lubricant 0.7, C1, W8.6, Mo6.1, V3.1, Fe65.

[0014] The preparation method of the self-lubricating cermet bearing with good wear resistance comprises the following steps:

[0015] (1) Add ferric citrate and gallium chloride to water in a nitrogen atmosphere, heat to 60°C, stir at 90 rpm for 1.5 hours, add TiC, cadmium selenide, and zirconia powder, stir for 1 hour, then add Basic nickel carbonate was stirred for 3 hours, the pH value was adjusted to 6 with ammonia water, heated to 90°C and kept at this temperature for 2 hours to obtain a gel;

[0016] (2) Heating the gel to 150°C and maintaining the temperature until no smoke is produced, then st...

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PUM

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Abstract

Ferric citrate and basic nickel carbonate are used for carrying out wrapping modification on TiC, the surface of a ceramic phase is wrapped by iron and nickel, and ceramic particles have magnetism and are prone to being combined with a metal phase. The interracial effect is reduced, the bonding strength between the ceramic phase and the metal phase is improved, and the strength and the tenacity of a bearing are greatly improved. By means of gallium trichloride and cadmium selenide, grain refinement is achieved, the bonding performance between the metal and the ceramic is improved, and tenacity is improved. By means of nanometer tungsten trioxide and zirconium oxide powder, the abrasion resistance and thermal resistance of the bearing are improved, and the bearing does not deform and is not prone to abrasion under the high-temperature condition.

Description

technical field [0001] The invention relates to the technical field of cermet bearings, in particular to a self-lubricating cermet bearing with good wear resistance and a preparation method thereof. Background technique [0002] The development of modern science and technology has higher and higher requirements on the friction, wear and lubrication performance of materials under high temperature conditions. The research and development of self-lubricating composite materials has become an important research hotspot in the field of tribology. Metal or ceramic-based self-lubricating materials are composite materials formed by adding solid lubricants into metal or ceramic matrix as components, and their tribological properties depend on the precipitation and dispersion distribution of solid lubricant contained in the matrix during the friction process. However, there are few solid lubricants that can withstand high sintering temperature without losing lubricating properties, a...

Claims

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Application Information

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IPC IPC(8): C22C33/02B22F1/02
CPCC22C33/0292B22F2998/10B22F1/17B22F2003/023B22F3/1035B22F1/10
Inventor 余寅生
Owner ANHUI SILVER BALL BEARING
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