Annealing is a kind of SS490 heat treatment process, to SS490 slowly heated to a certain temperature, keep enough time, and then cooling at appropriate rate.
The aim is to:
Reduce SS490 hardness, improving cutting machining;
Eliminate the residual stress SS490, stable size, reduce the deformation and crack tendency;
Refining SS490 grain, adjust, eliminate the defects.
Accurately, annealing is a heat treatment process for materials, including metal materials, non-metallic materials. And the new material also exist similarities and differences with the traditional metal annealing annealing purpose.
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