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Preparation method of self-lubricating bearing material

A technology of self-lubricating bearings and fillers, which is applied in the field of bearing materials, can solve problems such as the difficulty of lubricating effects, and achieve good self-lubricating performance, good insulation performance, and good high temperature resistance

Inactive Publication Date: 2019-07-12
龙小容
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention: Aiming at the problem that the lubricating effect of existing materials is difficult to exert under the high temperature state, a preparation method of self-lubricating bearing material is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0026]Take boron nitride, calcium soap powder, polytetrafluoroethylene, caprolactam and graphite, mix boron nitride, calcium soap powder, polytetrafluoroethylene, caprolactam and graphite, and perform ball milling to obtain the filler; take waste ceramic powder, Silicon nitride, filler, aluminum alloy powder, glass fiber, carbon black, safflower powder, mix waste ceramic powder, silicon nitride, filler, aluminum alloy powder, glass fiber, carbon black and squat powder, and carry out stirring treatment, that is A precursor mixture is obtained; the precursor mixture is molded to obtain a green body, and the green body is rolled to obtain a rolled green body, and the rolled green body is annealed to obtain a semi-finished product, and the semi-finished product is kept warm Roasting treatment, cooling to room temperature, that is obtained from lubricating bearing materials. The calcium soap powder is passed through a 30-mesh sieve, and the polytetrafluoroethylene is passed through...

example 2

[0028] Take boron nitride, calcium soap powder, polytetrafluoroethylene, caprolactam and graphite, mix boron nitride, calcium soap powder, polytetrafluoroethylene, caprolactam and graphite, and perform ball milling to obtain the filler; take waste ceramic powder, Silicon nitride, filler, aluminum alloy powder, glass fiber, carbon black, safflower powder, mix waste ceramic powder, silicon nitride, filler, aluminum alloy powder, glass fiber, carbon black and squat powder, and carry out stirring treatment, that is A precursor mixture is obtained; the precursor mixture is molded to obtain a green body, and the green body is rolled to obtain a rolled green body, and the rolled green body is annealed to obtain a semi-finished product, and the semi-finished product is kept warm Roasting treatment, cooling to room temperature, that is obtained from lubricating bearing materials. The calcium soap powder is passed through a 33-mesh sieve, and the polytetrafluoroethylene is passed throug...

example 3

[0030] Take boron nitride, calcium soap powder, polytetrafluoroethylene, caprolactam and graphite, mix boron nitride, calcium soap powder, polytetrafluoroethylene, caprolactam and graphite, and perform ball milling to obtain the filler; take waste ceramic powder, Silicon nitride, filler, aluminum alloy powder, glass fiber, carbon black, safflower powder, mix waste ceramic powder, silicon nitride, filler, aluminum alloy powder, glass fiber, carbon black and squat powder, and carry out stirring treatment, that is A precursor mixture is obtained; the precursor mixture is molded to obtain a green body, and the green body is rolled to obtain a rolled green body, and the rolled green body is annealed to obtain a semi-finished product, and the semi-finished product is kept warm Roasting treatment, cooling to room temperature, that is obtained from lubricating bearing materials. The calcium soap powder is passed through a 36-mesh sieve, and the polytetrafluoroethylene is passed throug...

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Abstract

The invention relates to a preparation method of a self-lubricating bearing material, and belongs to the technical field of bearing materials. According to the preparation method of the self-lubricating bearing material, boron nitride, calcium soap powder, polytetrafluoroethylene, caprolactam and graphite are mixed to be used as a lubricating filler of the self-lubricating bearing material, and thus the prepared self-lubricating bearing material has good high-temperature resistance; a rolling and roasting compound process is adopted, waste ceramic powder and silicon nitride are used as aggregates, sesbania powder is used as a pore-forming agent, the self-lubricating bearing material is prepared, ceramics, plastics and alloys are well combined by rolling, hydrogen bonds between layers of the self-lubricating bearing material are broken through roasting activation, absorbed water, crystal water and organic substances in the self-lubricating bearing material are removed, as a result, partof groups of an inner layer of an original crystal of the self-lubricating bearing material are exposed and the category and number of surface active points are increased, and thus the reaction activity of the self-lubricating bearing material is improved; and glass fibers and carbon black are used for enhancing the self-lubricating bearing material, and thus the wear-resisting property and tensile strength of the self-lubricating bearing material are improved.

Description

technical field [0001] The invention relates to a preparation method of a self-lubricating bearing material, which belongs to the technical field of bearing materials. Background technique [0002] Bearings are an indispensable basic part of all kinds of mechanical equipment in today's era, and their performance directly affects and determines the performance of mechanical equipment. According to the form of friction during its work, it is divided into two categories: rolling bearings and sliding bearings. Rolling friction occurs when rolling bearings rotate, and sliding friction between surfaces occurs when sliding bearings rotate. The different materials include metal, ceramic and plastic bearings. Among the sliding bearings, the bearings that use their own porosity to impregnate lubricating oil and have the ability to supply oil and have self-lubricating properties are oil-containing self-lubricating bearings. Oil-containing self-lubricating ceramic bearings, as the nam...

Claims

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Application Information

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IPC IPC(8): C22C49/00C22C47/14B22F3/11B22F3/18B22F5/10B22F1/00C22C101/06
CPCC22C49/00C22C47/14B22F3/1121B22F3/18B22F5/106B22F2003/185B22F2998/10B22F1/10B22F3/02B22F2003/248
Inventor 龙小容
Owner 龙小容
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