INA stainless steel bearings in the role of stress is less than the yield strength of material deformation is called elastic deformation. Plastic deformation, also known as the permanent deformation bearing parts can not be restored after the removal of the external force (load), that part of the deformation. Excessive deformation is an important type of mechanical equipment failure.

(1) the use of reasonable methods of cooling:

Metal after quenching the cooling process is also very important deformation of a deformation of the reasons. The hot oil quenching than cold oil quenching deformation is small, the general control of 100 ± 20 ℃. The cooling capacity of the oil on the deformation is also essential. Stirring method and speed of the quenching affect the deformation. The faster the cooling rate of metal heat treatment, cooling is uneven, the greater the stress, the mold change INA stainless steel bearings shaped.

(2) using the appropriate medium:

Under the premise of ensuring the same hardness, maximize the use of oily media, experiment and practice prove that, under the premise again no difference in other conditions, the slower the cooling rate of the oil medium, the cooling rate of the aqueous medium is relatively faster.

(3) part structure to be reasonable:

Metal after heat treatment in the cooling process, always thin part of the cold faster and the thickest part of the cold slowly.



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