Method of subjecting welded structure to heat treatment

Details Method of subjecting welded structure to heat treatment Method of subjecting welded structure to heat treatment

1986-01-10

1988-03-15

Dean, R.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148154, C21D 908

Patent

active

047311312

ABSTRACT:
A method of subjecting a welded structure to heat treatment in which a tensile yield is produced on an inner surface of the welded structure and a compressive yield is produced on an outer surface of the welded structure by the steps of placing a cooling medium in the interior of the welded structure and heating the outer surface of the welded structure to cause a difference in temperature to exist between the inner surface and other surface of the welded structure. The method further includes the step of locally heating a weld by means of a heating member to improve residual stress in a localized area of the weld and repeating the improvement of the residual stress regarding another localized area of the weld.

REFERENCES:
patent: 4229235 (1980-10-01), Matsuda et al.

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