| 摘要 |
PROBLEM TO BE SOLVED: To prolong the life of a mold while securing the quality of casted pieces by removing at least the flaw part or the deformation part of a mold by grinding a continuous casting mold, forming a plating layer over the ground part by electroplating of copper or copper alloy and by applying the plating finish procession. SOLUTION: A mold 2 is dismounted from a supporting frame 3, and then grind and remove the parts by a lathe and the like in a range including the flaw part or the deformation part. When the surface of the mold is plated with nickel and the like, the plating layer of nickel and the like is to be removed form at least in a range where an electroplating of copper or its alloy is to be applied. After the degreasing treatment, such as solvent degreasing and alkali degreasing, the grinded and removed part of the surface is completed, the electroplating of copper or its alloy is to be started acting as cathode. After the electroplating is finished, the plate layered surface is finish processed to a given shape; the surface of the layer doesn't have projections and depressions at the interface to the surface of the basic mold 2, and the plated surface has to be smooth. |
