Fremgangsmåte ved sammenföyning av tofase rustfritt stål

摘要

In a method of bonding ferritic and austenitic dual stainless steels, an insert material made of a Ni base alloy having a melting point below 1290 DEG C is put between the bonding cross section faces of mother material steels comprising a dual phase stainless steel. A pressure force in the range of 3 MPa to 5 MPa is applied to the bonding area. The bonding area is heated to a temperature in the range of 1290 DEG C to the melting point of the mother material steel. The temperature is kept for a time in the range of 30 seconds to 180 seconds.