Method for manufacturing novel super-high speed precision ball bearing

A manufacturing method and ultra-high-speed technology, applied in the field of bearings, can solve the problems of poor high-speed performance, large temperature rise, large vibration, etc., and achieve the effects of improving bearing capacity, reducing temperature rise, and improving performance

Inactive Publication Date: 2015-06-03
LUOYANG INST OF SCI & TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] According to the application status of the existing high-speed precision ball bearings, there are a series of aspects that need to be improved, such as poor high-speed performance, large temperature rise, large vibration, etc.

Method used

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  • Method for manufacturing novel super-high speed precision ball bearing

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Embodiment Construction

[0027] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation and structure of a new type of ultra-high-speed precision ball bearing proposed according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. , feature, production method and effect thereof, detailed description is as follows.

[0028] The present invention will apply closed-field unbalanced magnetron sputtering ion plating technology (a kind of physical vapor deposition technology). The functional coating deposited by this technology has low temperature characteristics and high-precision surface quality, and is very suitable as the final coating of bearing parts. A superfinishing process, the Cr-N-C coating is modified on the surface of the key parts (steel balls and rings) of the high-speed precision ball bearing. The Cr-N-C coating has exc...

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Abstract

The invention discloses a method for manufacturing a novel super-high speed precision ball bearing. The method comprises the following steps: (a) preparing a Cr-N-C gradient compound coating; (b) washing a steel ball sample and drying with cold air; (c) highly vacuumizing by putting the steel ball in a cavity; (d) introducing Ar2, exerting a negative bias after rising of the air pressure, opening a Cr target to promote the current, washing the matrix, and opening a rotary workpiece clamp to rotate the steel ball in a constant speed; (e) reducing the negative bias and the chromium target current; (f) depositing the Cr-N-C gradient compound coating by exerting a negative bias on the matrix, wherein the Cr-N-C gradient compound coating is composed of a Cr bottom layer, a Cr-N transition layer and a Cr-N-C work layer; and (9) closing the Cr target, the C target and the nitrogen, and continuously introducing an argon. By adopting the technical solution provided by the invention, the temperature rise of the precision ball bearing can be greatly reduced, the vibration of the bearing can be reduced and the vibration stationarity can be increased, and then the high speed performance of the precision ball bearing and the reliability of the performance life can be increased and simultaneously the loading ability can be increased.

Description

technical field [0001] The invention relates to the field of bearings, in particular to a manufacturing method of a novel ultra-high-speed precision ball bearing. Background technique [0002] According to the application status of the existing high-speed precision ball bearings, there are a series of aspects that need to be improved, such as poor high-speed performance, large temperature rise, and large vibration. Contents of the invention [0003] The purpose of the present invention is to overcome the existing defects of the existing high-speed precision ball bearings, and provide a new type of manufacturing method for ultra-high-speed precision ball bearings. The technical problem to be solved is to reduce the temperature rise of the bearing and improve its The load capacity and vibration reduction can greatly improve the high-speed performance and performance reliability of the bearing, etc., so that the performance characteristics of the main engine can be greatly im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/35C23C14/06C23C14/14
Inventor 贾贵西常家东王雅红田丽萍
Owner LUOYANG INST OF SCI & TECH
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