The invention belongs to the technical field of magnesium alloy surface treatment, and particularly relates to a method for preparing a magnesium alloy colored surface coating in one step, an obtained magnesium alloy and application of the magnesium alloy. The method comprises the following steps: 1) preparing a mixed aqueous solution of NaAlO2 and/or NaOH; (2) putting the mixed aqueous solution of NaAlO2 and/or NaOH obtained in the step (1) into a corrosion-resistant reaction container, and then immersing a clean AZ91D magnesium alloy sample into the mixed aqueous solution of NaAlO2 and/or NaOH; 3) closing the bottle opening of the reactor, and carrying out a heating reaction at 95-105 DEG C under magnetic stirring for 3.5-4.5 h; and 4) cleaning the AZ91D magnesium alloy sample after the heating reaction to obtain the magnesium alloy with the colored surface coating. The corrosion-resistant colored coating is successfully prepared through a one-step hydrothermal method, and the method has the advantages of being simple, environmentally friendly and low in cost.
本发明属于镁合金表面处理技术领域,具体涉及一种一步制备镁合金彩色表面涂层的方法、得到的镁合金及其应用。该方法包括以下步骤:1)制备NaAlO2和/或NaOH的混合水溶液;2)将步骤1)得到的NaAlO2和/或NaOH的混合水溶液装入到耐腐蚀的反应容器中,再将清洁的AZ91D镁合金样品浸没到NaAlO2和/或NaOH的混合水溶液中;3)封闭反应器的瓶口,在磁力搅拌下进行95‑105℃的加热反应,加热时间为3.5‑4.5h;4)加热反应完后对AZ91D镁合金样品进行清洗,得到具有彩色表面涂层的镁合金。本发明通过一步水热法成功制备了耐腐蚀彩色涂层,该方法具有简单、环保和低成本的优势。
Method for preparing magnesium alloy colored surface coating in one step, obtained magnesium alloy and application of magnesium alloy
一种一步制备镁合金彩色表面涂层的方法、得到的镁合金及其应用
13.10.2023
Patent
Elektronische Ressource
Chinesisch
Magnesium alloy material and magnesium alloy surface anti-corrosion treatment method
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