MOLD FOR CONTINUOUS CASTING AND ITS PRODUCTION

摘要

PURPOSE:To obtain a mold for continuous casting having high hardness and excellent wear resistance by providing a chromium plating layer contg. at least carbon on the inside wall surface of the mold of copper or a copper alloy. CONSTITUTION:A chrome plating layer 1 contg. carbon is formed directly on a base body 2 of a casting mold and the effect thereof is improved if a nickel or nickel-base alloy layer 3 is provided on the body 2 and the chrome plating layer 1 contg. carbon is provided thereon. The exfoliation from the underlying layer is prevented if a single layer of an ordinary chrome plating layer 4 or a composite layer of the layer 3 and the layer 4 is provided on the body 2 and the layer 1 is provided thereon. A plating liquid consisting of 55-90% chromium (III) ion and 45-10% chromium (VI) ion 60-140g/l total chromium is used for the compsn. of the mother liquor for plating to be used for the above.