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Automobile bearing retainer material and preparation method thereof

A technology for automotive bearings and cages, applied in the field of materials, can solve problems such as poor mechanical properties and stability, and achieve the effects of good fatigue and chemical resistance, low sensitivity, and good stability

Inactive Publication Date: 2015-04-01
SUZHOU NEW DISTRICT JIAHE PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In general, low-carbon steel is used as the material for the cage of the bearing, but this material is not suitable for use in high-temperature or humid and corrosive environments. Now nylon is also used, but its mechanical properties and stability are not good.

Method used

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  • Automobile bearing retainer material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0017] This embodiment provides an automobile bearing cage material, including polyphthalamide (PPA), polyphenylene ester, glass fiber, heat stabilizer, ethylene-octene copolymer and sizing agent, and the mass of each component is 100%. The content is: 50% polyphthalamide, 11% polyphenylene, 16% glass fiber, 5% heat stabilizer, 15% ethylene-octene copolymer, and 3% sizing.

[0018] A preparation method for an automobile bearing cage material, comprising the steps of:

[0019] (1) Select raw materials according to mass percentage, polyphthalamide is dried, the drying temperature is 90 ℃ ~ 130 ℃, the drying time is 4.5h-5h, polyphenylene is dried, the drying temperature is 100℃~110℃, drying time is 3h-4h;

[0020] (2) Put the dried polyphthalamide and polyphenylester into the high-speed mixer, and add the heat stabilizer, ethylene-octene copolymer and sizing agent in proportion;

[0021] (3) Add the above compound into the twin-screw extruder, add glass fiber into the other fe...

Embodiment 2

[0025] This embodiment provides a kind of automobile bearing cage material, including polyphthalamide (PPA), polyphenylene ester, glass fiber, heat stabilizer, toughening agent and sizing agent, the mass percentage content of each component is : 55% polyphthalamide, 10% polyphenylene, 15% glass fiber, 5% heat stabilizer, 12% toughening agent, and 3% sizing.

[0026] A preparation method for an automobile bearing cage material, comprising the steps of:

[0027] (1) Select raw materials according to mass percentage, polyphthalamide is dried, the drying temperature is 90 ℃ ~ 130 ℃, the drying time is 4.5h-5h, polyphenylene is dried, the drying temperature is 100℃~110℃, drying time is 3h-4h;

[0028] (2) Put the dried polyphthalamide and polyphenylene into the high-speed mixer, and add the heat stabilizer, toughening agent and sizing agent in proportion;

[0029] (3) Add the above-mentioned mixture into the twin-screw extruder, add glass fiber into the other feeding port of the ...

Embodiment 3

[0033] A kind of automobile bearing cage material, including: polyphthalamide (PPA), polyphenylene ester, glass fiber, heat stabilizer, ethylene-octene copolymer and sizing agent, the mass percentage content of each component is : 60% polyphthalamide, 10% polyphenylene, 18% glass fiber, 5% heat stabilizer, 15% ethylene-octene copolymer, 2% sizing.

[0034] A preparation method for an automobile bearing cage material, comprising the steps of:

[0035] (1) Select raw materials according to mass percentage, polyphthalamide is dried, the drying temperature is 90 ℃ ~ 130 ℃, the drying time is 4.5h-5h, polyphenylene is dried, the drying temperature is 100℃~110℃, drying time is 3h-4h;

[0036] (2) Put the dried polyphthalamide and polyphenylester into the high-speed mixer, and add the heat stabilizer, ethylene-octene copolymer and sizing agent in proportion;

[0037] (3) Add the above-mentioned mixture into the twin-screw extruder, add glass fiber into the other feeding port of the...

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Abstract

The invention discloses an automobile bearing retainer material. The automobile bearing retainer material comprises the following components in percentage by mass: 40%-60% of polyphthalamide (PPA), 10-12% of polyphenyl ester, 15%-18% of glass fiber, 1%-5% of a heat stabilizer, 9%-15% of a toughener and 2%-4% of a sizing agent. The invention further discloses a preparation method of the automobile bearing retainer material. The bearing retainer material provided by the invention has excellent mechanical properties and stability.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to an automobile bearing cage material and a preparation method thereof. Background technique [0002] The function of the cage is to keep the arrangement of the rolling elements in the bearing raceways at a fixed distance, prevent the balls from running away, and prevent the rolling elements from biting each other. At the same time, the rolling elements are evenly distributed along the circumference to reduce the bearing clearance during operation coming adverse effects. Generally speaking, low-carbon steel is used as the material for the cage of the bearing, but this material is not suitable for use in high-temperature or humid and corrosive environments. Now nylon is also used, but its mechanical properties and stability are not good. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an automobile bearing cage materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L67/00C08L23/08C08K7/14B29C47/92B29C48/92
CPCC08L77/06B29C48/92B29C2948/9258B29C2948/92704C08L2201/08C08L2205/035C08L67/00C08L67/04C08L23/0815C08K7/14
Inventor 蒋学功
Owner SUZHOU NEW DISTRICT JIAHE PLASTIC
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