CASTING ROLL OF TWIN ROLL TYPE STRIP CASTER AND SURFACE TREATMENT METHOD THEREOF

摘要

The present invention provides a casting roll of a twin-roll strip caster, including: a nickel plating layer formed on an outer circumferential surface and an end surface of the casting roll; a nickel-boron alloy plating layer formed on the nickel plating layer located on the end surface of the casting roll; and a hard plating layer formed on the nickel plating layer located on the outer circumferential surface of the casting roll and an outer circumferential surface of the nickel- boron alloy plating layer located on the end surface of the casting roll. The present invention improves durability of the casting roll.