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为使钢铁零件耐腐蚀和延长使用寿命,必须采取工艺性表面处理,使其表面增加一层保护层。我厂变压器油箱及附件除锈,原先采用硫酸酸洗工艺,其工艺落后,存在着许多缺点,其一是酸洗后工件立刻又生成一层浮锈,需人工除锈后再涂漆,劳动强度大。其二是污染环境。其三是出现过腐蚀现象。现采用化锈磷化新工艺后,取得了良好的效果。磷化液配比有所变化,其效果就大不一样,常出现的问题有:一是工件表面易产生浮白粉及黑色流斑,影响工件表面质
In order to make the steel parts corrosion-resistant and prolong the service life, we must take the technical surface treatment, to add a protective layer on the surface. Our factory transformer oil tank and accessories rust, the original sulfuric acid pickling process, its technology behind, there are many shortcomings, one is the pickle immediately after the workpiece and generate a layer of rust, rust and then need to paint, labor Strong intensity. The second is to pollute the environment. The third is the phenomenon of corrosion. Now using the new rust-phosphating process, and achieved good results. Phosphating solution ratio has changed its effect is quite different, often problems are: First, the workpiece surface is easy to produce floating white powder and black flow spot, affecting the surface quality of the workpiece