RESISTANCE WELDABLE ORGANIC COMPOSITE PLATED STEEL SHEET WITH EXCELLENT CORROSION RESISTANCE, PRESS MOLDABILITY AND WATER RESISTANT SECONDARY ADHESIVE PROPERTIES

摘要

PROBLEM TO BE SOLVED: To provide an organic composite plated steel sheet having excellent end face corrosion resistance and weldability, moldability at the time of pressing and coating film water resistant secondary adhesive properties. ;SOLUTION: The resistance weldable organic composite plated steel sheet is obtained by forming chemical treatment layers of a phosphoric acid compound on both side surfaces of a steel sheet having a plated layer made of a zinc- nickel alloy or zinc-chromium alloy, and further forming thereon a coating film having a thickness of 0.5 to 20μm containing 40 to 96 vol.% organic resin, 3 to 56 vol.% conductive material and 1 to 57 vol.% rust-proofing pigment.;COPYRIGHT: (C)1997,JPO