Procedure for making gas exchange valves, seat rings or cylinder heads with increased abrasion resistance of seating face for IC engines

摘要

A procedure for making gas exchange valves, seat rings or cylinder heads with increased abrasion resistance of the seating face for IC engines has a hardened armored element applied in annular fashion to the seating face and then processed. An armored element or part-pieces is/are prefabricated from the material to be applied to the seating face and joined to the base material by liquid solder. A solder on a nickel, copper or noble metal base with reinforcing components is used for the joint with the base material. The armored element to be applied is prefabricated in a shape near to the final contour