METHOD FOR REMOVING COPPER-PLATED LAYER FROM COPPER-PLATED STEEL MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a method for efficiently removing Cu plating from steel scraps at a low cost without any problem such as waste gas disposal. SOLUTION: This method is to mechanically strip off a Cu-plated layer in the method for removing the Cu-plated layer from a steel material formed with the plated layer mainly contg. Cu. In concrete terms, a rotary kiln is rotated at a rotational speed of >=0.1rpm after cut pieces of the steel material are charged together with a hard material into the rotary kiln having a cross section of >=20cm in diameter.