The invention relates to a method for preparing an object surface film by a liquid level drop method. It is placed in a stationary container where the coating is placed and the sol is added. Make the sol level reach the desired coating position. After a suitable period of time, the sol flows out or extracts from the bottom or bottom of the container so that the sol surface drops and leaves a layer of sol on the surface of the object. After drying and heat treatment, the coating is obtained on the surface of the object. The equipment required by the invention is few and simple, and there is no large mechanical transportation in the coating process, the coating can be applied to large objects, and the production cost and energy consumption are greatly reduced.
【技術實現步驟摘要】
【技術保護點】
一種液面下降法制備物體表面膜的方法,其特征在于在一個靜置的容器中,放置待鍍膜的物體后,加入鍍膜溶膠,使鍍膜溶膠液面達到所需鍍膜的位置,停留有效時間后,從容器下部或底部排出鍍膜溶膠,使鍍膜溶膠液面逐漸下降,從而在物體表面站留下一層鍍膜溶膠,經干燥和熱處理后,在物體表面得到鍍膜。
【技術特征摘要】
還沒有人留言評論。發表了對其他瀏覽者有用的留言會獲得科技券。