Purpose of annealing
Jan 09, 2019

The purpose of annealing

( 1 ) Reduce the hardness and improve the plasticity of steel to facilitate cutting and cold deformation.

( 2 ) Refine the grain size, eliminate the structural defects caused by casting, forging and welding, homogenize the structure and composition of the steel, improve the performance of the steel or prepare for the subsequent heat treatment.

( 3 ) Eliminate internal stress in steel to prevent deformation and cracking

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