Choose the TIMKEN bearing import quenching method and the cooling medium

TIMKEN bearing import quality super good, so make up also very troublesome. Many bearing manufacturers won't create (produce), only to please the manufacture of professional technician TIMKEN bearing import production process. According to the chemical composition of TIMKEN bearing import parts, shape, size, and the mechanical properties of the design requirements, can adopt different bearing quenching methods, each bearing steel has its fixed curve C, bearing cooling medium choice determines the microstructure and mechanical properties after quenching, so you must focus on thinking and concrete analysis, in fact, many TIMKEN bearing import parts heat treatment defect generation and selection of cooling medium bearing has a direct relationship, but also related to the concrete operation process. Artifacts in heat treatment furnace heated to completely after austenitizing, in order to obtain the required set of woven and performance, need to quenching process. Artifacts to get martensite structure after cooling, the cooling rate must be greater than the critical cooling rate, speed too fast, but the cold causes artifacts volume shrinkage and organizational change drastically, cause a lot of internal stress. So should make cooling speed under the condition of obtain martensitic as low as possible, and the ideal cooling curve as shown in figure. Choose appropriate quenchant is particularly important, it determines the TIMKEN bearing import parts the organization and performance after quenching, quenching medium usually have a solid, liquid and gas three, according to the TIMKEN bearing quenching medium when changes of state is divided into changes of state and change of state class.