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发明公开
CN108018513A 一种热浸镀锌铝镁镀层钢板及其制造方法 无效 - 驳回

一种热浸镀锌铝镁镀层钢板及其制造方法
摘要：
本发明公开了一种热浸镀锌铝镁镀层钢板，其包括基板和镀覆于基板上的镀层，所述镀层的化学成分质量百分配比为：Al 0.15％‑6.5％，Mg 0.2％‑7％，RE≤0.2％，Sr 0.002％‑0.2％，余量为Zn和其他不可避免的杂质，并且所述镀层的化学成分还满足Mg/Al＞1.0。相应地，本发明还公开了一种上述的热浸镀锌铝镁镀层钢板的制造方法，包括步骤：(1)基板预处理；(2)将基板浸入镀液池热浸镀后取出。本发明所述的热浸镀锌铝镁镀层钢板镀层附着力高，不易剥落，表面质量优异，此外，本发明所述的制造方法除了具有上述优点以外，还具有实用性强，减少浮渣，提高了生产设备的使用寿命。
摘要（英）：

The invention discloses a hot-dip zinc aluminum magnesium coated steel sheet, which comprises a substrate and a coating plated on the substrate. The coating comprises the following chemical componentsby mass: 0.15%-6.5% of Al, 0.2%-7% of Mg, less than or equal to 0.2% of RE, 0.002%-0.2% of Sr, and the balance Zn and other unavoidable impurities, and the chemical composition of the coating also meets that the Mg/Al ratio is greater than 1.0. Correspondingly, the invention also discloses a manufacturing method of the hot-dip zinc aluminum magnesium coated steel sheet, and the method includes the steps of: (1) pretreating the substrate; (2) dipping the substrate into a plating solution pool for hot dipping, and then taking the substrate out. The hot-dip zinc aluminum magnesium coated steel sheet provided by the invention has the advantages of high coating adhesion, difficult stripping, and excellent surface quality, in addition, the manufacturing method also has the characteristics of strong practicality, dross reduction and improvement of the production equipment service life.

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