The application of seam annealing method promotes steel pipe quality level.

Induction heater is the main part of steel pipe induction annealing equipment, which heat the pipe seam welded and quenched to critical temperature, this process can reduce welding stress and potential crack, and the produced close grains structure can guarantee producing tenacious steel pipe meeting all standard specifications.

With the advantage of seam rapidly sectional heating, the oxydation and deformation of steel pipe can be made minimum, and the precise diathermancy make the close grains in seam area conformity with its parent material.

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