Heat treatment optimization method for carburized steel bearing rings

Abstract

The invention provides a heat treatment optimization method for carburized steel bearing rings. The method comprises the following steps that a thermal physical property, a CCT curve, a TTT curve anda hardening capacity curve are obtained; according to all curves and an established initial heat treatment process, a heat treatment simulation model under coupling of a temperature field, a tissue field and a stress field of a carburized steel bearing ring is established, and the carburizing steel bearing ring is subjected to heat treatment process simulation to obtain martensite, hardness, carburized layer and stress tracking data of each part of the bearing ring; if the data meets the requirement, the bearing ring is subjected to heat treatment according to the initial heat treatment process; and if the requirement is not met, the parameters are adjusted to recalculate the data, and if the data at the moment meets the requirement, the data is used as the heat treatment process parameterof the bearing ring. According to the method, various details in the heat treatment process can be flexibly adjusted, the process parameters are adjusted in real time, and certain universality is achieved. According to the treatment process provided by the invention, the energy can be effectively saved, and the economic time and the economic cost can be effectively saved.

Description

technical field [0001] The invention belongs to the technical field of heat treatment, in particular to a heat treatment optimization method for a carburized steel bearing ring. Background technique [0002] As a key component of major equipment such as high-speed railways, precision machine tools, and wind turbines, the technical level of bearings directly determines the overall development level of the entire equipment. Bearings consist of three major components: rings (including inner and outer rings), rolling elements and cages. Due to my country's vast territory and deep and wide inland, the climate and environment vary greatly between regions. The operation of high-speed trains on long cross-roads, low temperature, environmental corrosion, and wind and sand damage are all unique operating conditions in my country, which make the service of axle box bearings more demanding. Bearing steel materials are required to have high hardness, high wear resistance, high impact t...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a heat treatment optimization method for carburized steel bearing rings, which is used to solve the problems of time-consuming, labor-intensive and high-cost heat treatment methods for bearing rings in the prior art

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