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发明公开
CN103484872A 一种含有复配钝化剂的酸洗液及其制备方法 有权

一种含有复配钝化剂的酸洗液及其制备方法
摘要：
本发明属于不锈钢铸件清洗领域，涉及一种通过在HNO3和HF基础酸液中添加有机物质复配而得的带有钝化效果的酸洗液。由硝酸和氢氟酸、复配钝化剂、水组成，其质量含量分别为：硝酸为3.3%~37.5%、氢氟酸为0.7%~7.5%、复配钝化剂为1.3~13.5%、水为余量。对受污染的不锈钢铸件进行清洗，使铸件恢复本身所具有的金属光泽。并在铸件表面形成一层致密的钝化膜，使铸件长期存放仍能保持银亮美观、不生锈斑。本发明的另一特点是酸雾很小，有利于环保及操作人员身体健康，酸洗量大，酸处理成本低。
摘要（英）：

The invention belongs to the stainless steel casting cleaning field, and relates to a passivating pickling solution obtained through adding an organic substance to an HNO3-HF base acid solution and compounding. The pickling solution comprises 3.3-37.5mass% of HNO3, 0.7-7.5mass% of HF, 1.3-13.5mass% of the compounded passivating agent, and the balance water. A polluted stainless steel casting is cleaned by the pickling solution to recover the metal luster originally possessed by the casting. The pickling solution forms a compact passivating film on the surface of the casting, so bright beauty maintenance and no rusty spot are realized after the casting is stored for a long term. The pickling solution has the characteristics of very small acid mist, benefiting for the environmental protection and the body health of an operation personnel, large pickling amount, and low pickling cost.

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