选用马日夫盐、三氯化锑、酒石酸钠、磷酸、钼酸钠及自制的聚合物-A 和聚合物-B为黑化液的主要成分,通过正交试验优化出了最佳配比,即:马日夫盐8.0g/L,三氯化锑6.0g/L,酒石酸钠6.0g/L,磷酸50g/L,钼酸钠1.0g/L,聚合物-A1.0g/L,聚合物-B1.5g/L。测试结果表明,采用该黑化液得到的黑化膜致密、均匀,抗蚀性好。

This study choiced the manganese dihydrogen phosphate, antimony trichloride, tartaric acid, phosphoric acid, sodium molybdate, polymer-A and polymer-B as the main raw materials in the the system of blacken phosphating solution for metal surface. By orthogonal testes the optimum process conditions were optimized out namely: manganese dihydrogen phosphate was 8.0 g/L, antimony trichloride was 6.0 g/L, tartrate was 6.0 g/L, phosphoric acid was 50 g/L, sodium molybdate was 1.0 g/L, polymer-A was 1.0 g/L, polymer-B was 1.5 g/L. Test results show that the blacken phosphated film is tight uniform, and has good adhesion.