METHOD FOR BAKING STEEL PART

摘要

A method for baking a steel part, comprising the step of rapidly heating the surface layer part of the steel part to 100 to 300 DEG C by a high frequency or a ultra high frequency, particularly, of 10 KHz or more to produce a temperature difference between the surface layer part and the inside of the steel part so as to cause a strain in lattices in order to remove diffusive hydrogen related to hydrogen embrittlement or move the state of presence thereof to that of non-diffusive hydrogen not related to hydrogen embrittlement, whereby a delayed rupture is prevented from being produced by the diffusive hydrogen occluded by the steel parts such as screws and bolts.