Method for manufacturing carbon-metlbond lamination retaining frame materials for rolling bearings

A technology for rolling bearings and manufacturing methods, which is applied in the field of bearing cage materials, can solve the problems of mechanical strength, thermal conductivity, elastic modulus, and thermal expansion coefficient that cannot fully meet the performance requirements of precision rolling bearings, and cannot meet high-speed precision rolling bearings, etc., and achieve good thermodynamic performance , low thermal expansion coefficient, high mechanical strength effect

Inactive Publication Date: 2012-03-28
LUOYANG BEARING RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the expansion of bearing application fields, the mechanical strength, thermal conductivity, elastic modulus, thermal expansion coefficient and other indicators of the existing cloth-based phenolic laminates can no longer fully meet the performance requirements of precision rolling bearings at high temperatures and high speeds
Especially for the service temperature of the material, the maximum service temperature of the existing cloth-based phenolic laminate is 150°C, which cannot meet the requirements of high-speed precision rolling bearings with a service temperature > 150°C

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Pour phenol with a purity of ≥99% and a formaldehyde solution with a mass percentage concentration of 37% into the reactor at a weight ratio of 1:1 and stir at a temperature of 70°C, then add the total amount of phenol and formaldehyde solution 6% ammonia water and continue to stir and react to generate a mixed resin. When the cloud point temperature of the mixed resin in the reactor reaches 57°C, stop stirring, and add absolute ethanol according to 40% of the total weight of the mixed resin after vacuum dehydration Formulated as phenolic resin.

[0023] Carbon fiber cloth with 80 counts of yarn is used and the phenolic resin is impregnated on the dipping machine, the number of layers of carbon fiber cloth is 2, and the relevant control parameters of the dipping machine are: the gap between the scraping rollers is controlled at 0.20 mm, and the drying temperature is controlled at 90 ℃, the dipping speed is controlled at 2 m / min.

[0024] The carbon fiber cloth impregna...

Embodiment 2

[0027] Pour phenol with a purity of ≥99% and a formaldehyde solution with a mass percent concentration of 37% into the reactor at a weight ratio of 1:1 and stir at a temperature of 80°C, then add the total amount of phenol and formaldehyde solution 6% ammonia water and continue to stir and react to generate a mixed resin. When the cloud point temperature of the mixed resin in the reactor reaches 64°C, stop stirring. After vacuum dehydration, add absolute ethanol according to 40% of the total weight of the mixed resin Formulated as phenolic resin.

[0028] Adopt carbon fiber cloth of 60 yarns and impregnate the phenolic resin on the dipping machine, the number of layers of carbon fiber cloth=4, the relevant control parameters range of the dipping machine are: the gap between the scraping rollers is controlled at 0.30mm, and the drying temperature is controlled at 110 ℃, and the dipping speed is controlled at 1 m / min.

[0029] The carbon fiber cloth impregnated with phenolic re...

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Abstract

The invention relates to a method for manufacturing carbon-metlbond lamination retaining frame materials for rolling bearings, which comprises the steps that carbon fiber cloth is used as a substrate, prepared phenolic resin is used as a bonding body, and the carbon-metlbond lamination retaining frame materials are obtained through phenolic resin dipping of the carbon fiber cloth, hot pressing coiling formation and post curing. The carbon-metlbond lamination retaining frame materials have a higher heat conductivity coefficient and a lower thermal expansion coefficient, through detection, the use temperature reaches 150 to 220 DEG C, the heat conductivity coefficient is greater than or equal to 0.85 (W/m-K), the thermal expansion coefficient is smaller than or equal to 1.0*(10<-6>/DEG C), the tensile strength is greater than or equal to 150 Mpa, and the elastic modulus is greater than or equal to 50Gpa. The performance parameter is improved or reduced, so the retaining frame manufactured by the carbon-metlbond lamination materials can meet the use requirement of a rolling bearing at a high temperature and a high speed.

Description

technical field [0001] The invention belongs to the technical field of bearing cage materials, and in particular relates to a manufacturing method of a carbon-phenolic laminated cage material for rolling bearings. Background technique [0002] Cages of high-speed precision rolling bearings are usually made of cloth-based phenolic laminates. With the expansion of bearing application fields, the mechanical strength, thermal conductivity, elastic modulus, thermal expansion coefficient and other indicators of the existing cloth-based phenolic laminates can no longer fully meet the performance requirements of precision rolling bearings at high temperatures and high speeds. Especially for the service temperature of the material, the maximum service temperature of the existing cloth-based phenolic laminate is 150°C, which cannot meet the requirements of high-speed precision rolling bearings with a service temperature > 150°C. Therefore, it is necessary to develop a cage materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C69/02C08L61/10C08K7/06C08K3/04
Inventor 葛世军孙小波王子君魏佳平时连卫武登云李建星
Owner LUOYANG BEARING RES INST CO LTD
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