Correct selection of imported bearing cooling method

Imported bearing in the proper selection of cooling method in the imported bearing heat treatment, quenching is a key process. Quenching the process, the cooling time and cooling rate on the workpiece deformation has an important influence. Among them, hot oil quenching and cooling quenching, compared to the former's influence on the deformation to smaller. The workpiece during quenching, the oil temperature keeps - in 80 120℃。 At the same time, also need to quenching way of stirring speed meter, etc. Put forward the corresponding requirements. Choosing the right in the process of heat treatment quenching medium is particularly important, it determines the imported bearing parts after quenching organization and function, often quenching medium has a solid, liquid and gas are three, according to the imported bearing quenching medium changes of state is divided into changes of state and change of state class. In order to minimize the situation of the large amount of deformation of workpiece during quenching, on the premise of guarantee the workpiece hardness, we usually adopt the method of precooling process. For imported bearing, commonly used is the isothermal quenching method. Recommended reading: - bearing distributors The cause of the miniature bearing surface discoloration