叙述了采用酸性水溶液处理钢件表面形成磷酸盐防腐膜层的方法。这种槽液是由如下两类材料组成:包括磷酸盐离子、金属离子和含氧酸的阴离子在内的主要材料和氧化剂A与碱性物质B构成的辅助材料。本操作工艺的特点:槽液的工作温度范围为0～40℃,pH值为2.2～3.5,它可通过添加主要材料和辅助 Describes the use of acidic aqueous solution of steel surface corrosion of phosphate coating method. This bath consists of two main types of materials: a main material including phosphate ions, metal ions and anions of oxygen acids, and an auxiliary material consisting of oxidizer A and basic material B. The operation of the process features: bath operating temperature range of 0 ~ 40 ℃, pH value of 2.2 to 3.5, which can be added by adding the main materials and auxiliary