Conducting of heat during metal inert gas or active gas welding for metallic materials esp. low-high alloyed steels and heat treated fine grain structural steel with a 0.2 percent yield strength or larger 900 N per mm2

摘要

The heat conducting method is carried out so that the cooling off time of the welding seam is held during its range from 800 deg.C to 500 deg.C, carried out per root layer, per intermediate layer and per covering layer respectively 1 to 23 seconds.