PROCESSING METHOD FOR END FACE OF THREE-LAYER STAINLESS CLAD STEEL

摘要

PURPOSE:To reduce the manufacturing cost of a product by eliminating common steel in the vicinity of an end face by a specific thickness, and subsequently, sealing up tightly both end part clad materials having a formed air-gap part, directly or through a packing material. CONSTITUTION:In the end face of three-layer stainless clad steel which has placed stainless steel 6 as a cladding material on both sides by placing common steel 2 between, the common steel 2 is removed by thickness of =1/2 of plate thickness in the thickness direction by an acid dissolving method or cutting, etc. Subsequently, a cavity part 4 which has been formed is filled with a filling material 8 such as a resin, etc., and sealed up tightly by joining stainless steel 6, 6 by soldering or welding. Or said part is sealed up tightly by joining directly the stainless steel 6, 6. By using this method, a process of curling work, etc. becomes unnecessary, and generation of red rust of the common steel 2 can be prevented. Accordingly, the manufacturing cost of a product is reduced.