ELECTROPLATED STEEL SHEET AND METHOD OF MANUFACTURING THE SAME

• Main Author: YOON, MAN SEOK
• Format: Patent
• Language: English; Korean
• Published: 12.02.2016
• Subjects: APPARATUS THEREFOR; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTROFORMING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

Disclosed are an electroplated steel sheet and a method of manufacturing the same, which is relatively cheap and can show a good electrical conduction and secure an excellent corrosion resistance. According to the present invention, the method of manufacturing the electroplated steel sheet of the present invention comprises: (a) a step of forming an Sn plating layer on the surface of a base steel sheet; (b) a step of depositing Mg on the Sn plating layer with a physical vapor deposition (PVD) method and forming an Mg plating layer; and, (c) a step of performing a heat treatment of the base steel sheet, on which the Sn plating layer and the Mg plating layer are piled up in order, and forming an Mg2Sn alloy layer on the base steel sheet. 비교적 저렴하면서 양호한 전기전도성을 나타냄과 더불어 우수한 내식성을 확보할 수 있는 전기도금강판 및 그 제조 방법에 대하여 개시한다. 본 발명에 따른 전기도금강판 제조 방법은 (a) 베이스 강판의 표면에 Sn 도금층을 형성하는 단계; (b) 상기 Sn 도금층 상에 PVD(Physical Vapor Deposition) 방식으로 Mg를 증착하여 Mg 도금층을 형성하는 단계; 및 (c) 상기 Sn 도금층 및 Mg 도금층이 차례로 적층된 베이스 강판을 열처리하여, 상기 베이스 강판 상에 MgSn 합금층을 형성하는 단계;를 포함하는 것을 특징으로 한다.