Factory Direct Sale Precision Gear Hobbing Machinery Parts Reciprocating Hobbing Heat Treatment Surface Treatment Electroplating
Product description
Cooling is also an indispensable step in the heat treatment process. The cooling method varies depending on the process, mainly controlling the cooling speed. Generally, annealing has the slowest cooling speed, normalizing has a faster cooling speed, and quenching has a faster cooling speed. However, there are different requirements depending on the type of steel. For example, air hardened steel can be hardened at the same cooling rate as normalizing.
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