SUS410S quenching medium

SUS410S cooling, in a medium such as water quenching and oil quenching. 
Advantages of simple operation, easy to realize mechanization, wide application.
Defect is in the water quenching stress is big, easy to deformation crack; In oil quenching, the cooling speed is small, hardening small diameter, large SUS410S steel hardening.

SUS410S double quenching medium

SUS410S steel in strong ability cooling medium first cooled to about 300 ℃, and then in a cooling capacity weaker medium cooling, such as: first after water quenching oil quenching, which can effectively reduce the internal stress of martensitic transformation, decreasing SUS410S deformation cracking tendency, can be used for complex shape, cross section uneven workpiece quenching. The disadvantage of double liquid quenching is difficult to grasp the double fluid conversion time, premature conversion easily quenching is not hard, too late and easy quenching crack. In order to overcome this defect, developed the interrupted quenching method.

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