Surface carburization processing method for steel bearing ring of high-carbon chromium bearing
A high-carbon chromium bearing and bearing ring technology, applied in the field of bearing rings, can solve the problems of reducing the service life of the bearing and failing to meet the requirements, and achieve the effect of meeting the requirements of use.
Active Publication Date: 2012-03-07
哈尔滨轴承制造有限公司
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Problems solved by technology
Since the carbon content of high-carbon chromium bearings has reached 1%, using the traditional carburizing process to carburize it will not only fail to achieve the desired purpose, but will reduce the service life of the bearing on the contrary.
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[0022] Below in conjunction with accompanying drawing and specific embodiment the present invention will be further described:
[0023] combine Figure 1-7 , In this embodiment, the carburizing heat treatment is performed on the surface of the high-carbon chromium bearing steel bearing ring, and the treatment process includes carburizing→quenching→tempering→carburizing→quenching→tempering. Among them, the carburizing process adopts carbon potential 1.1-2.0% at 920-960°C for 30-120min; the quenching process adopts quenching at 830-840°C for 30-120min; the tempering process adopts 160-180°C Temper for 3-4 hours.
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The invention provides a surface carburization processing method for a steel bearing ring of a high-carbon chromium bearing which is to perform carburization heat treatment to the surface of the steel bearing ring of the high-carbon chromium bearing. The processing method comprises the steps of carburizing, quenching, tempering, carburizing, quenching and tempering. If a bearing of a car engine used in polluted oil is processed with a traditional high-carbon chromium bearing process, the abrasion performance is inferior and the service life is short which cannot meet the use demand of car engine. The invention can promote the abrasion performance and the service life of the bearing used in polluted oil by carburizing the surface of the steel bearing ring of the high-carbon chromium bearing.
Description
(1) Technical field [0001] The invention relates to the technical field of bearing rings, in particular to a processing method for bearing rings. (2) Background technology [0002] If the surface of the bearing ring and other parts needs to be carburized and heat treated, the raw materials used for the processing of the bearing ring and other parts are all low and medium carbon steel. After carburizing, the carbon content on the surface reaches that of high carbon chromium bearings. Since the carbon content of the high-carbon chromium bearing has reached 1%, using the traditional carburizing process to carburize it will not only fail to achieve the desired purpose, but will reduce the service life of the bearing on the contrary. (3) Contents of the invention [0003] The purpose of the present invention is to provide a method for carburizing the surface of bearing rings made of high-carbon chromium bearing steel, which can improve the wear resistance of the bearing in pol...
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IPC IPC(8): C21D1/18C23C10/08C21D9/40
Inventor 庞军张永吉勇泰芳祖建赵开礼
Owner 哈尔滨轴承制造有限公司