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    • 97. 发明公开
    • METHOD FOR PROCESSING GALVANIZED COMPONENT
    • 加工镀锌部件的方法
    • EP3181717A1
    • 2017-06-21
    • EP14900014.3
    • 2014-08-22
    • Nisshin Steel Co., Ltd.
    • SASAKI, HirokazuKUROBE, Jun
    • C23C2/26B21D22/20C23C2/06
    • B21D22/20C21D7/02C21D2251/02C23C2/06C23C2/26
    • The present invention suppresses deterioration in the corrosion resistance of a worked portion resulting from working cracks in a Zn-based plated layer (3) in a workpiece (2) formed into a predetermined shape by performing plastic working on a Zn-based plated steel sheet (1) coated with a Zn-containing metal as a raw material. That is, plastic working is performed on a raw material that is a Zn-based plated steel sheet (1) to obtain a workpiece (2) having a predetermined shape, and thereafter, pressurization processing is performed on a worked portion in a sheet thickness direction to deform the plated metal, thus decreasing the width of working cracks in the plated metal. Accordingly, it is possible to reduce the deterioration in the corrosion resistance of the worked portion of the Zn-based plated workpiece.
    • 本发明通过对形成为预定形状的工件(2)中的Zn基镀层(3)进行塑性加工而抑制由于加工裂纹导致的加工部分的耐腐蚀性的劣化 (1)以含Zn金属为原料被覆。 即,对作为镀Zn系钢板(1)的原料进行塑性加工,得到规定形状的被加工物(2)后,对被加工部进行加工加工 从而使电镀金属变形,从而减小电镀金属中加工裂缝的宽度。 因此,可以降低镀Zn工件的加工部分的耐腐蚀性的恶化。