induction annealing

Induction annealing can effectively eliminate the structural defects of steel pipe welds, improve the structure, homogenize the composition and refine the grains, improve the mechanical properties of the steel, [...]

Induction annealing actually means induction normalizing, because the workpiece is cooled in the air after being heated to the annealing temperature, but it is customarily called annealing. Induction annealing [...]