Cu PLATED STEEL SHEET FOR ELECTROMAGNETIC WAVE SHIELD HAVING EXCELLENT CORROSION RESISTANCE AND DISCOLORATION RESISTANCE

摘要

PROBLEM TO BE SOLVED: To provide an electromagnetic wave shield steel sheet which has improved corrosion resistance while securing its electromagnetic shielding properties by the multiplication of layers. SOLUTION: In the electromagnetic wave shield steel sheet, a Cu layer with a film thickness of≥0.2μm and an Ni layer with a film thickness of 0.01 to 0.15μm are successively formed. The Ni layer prevents the oxidation and discoloration of the Cu layer. COPYRIGHT: (C)2004,JPO