| WANG Yu-qin,LU Pin,MA Yan-fei.Study on Blacken Phosphating Solution for Metal Surfaces[J],(4):71-73 |
| Study on Blacken Phosphating Solution for Metal Surfaces |
| Received:March 27, 2012 Revised:August 20, 2012 |
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| DOI： |
| KeyWord:black phosphating steel blacken phosphating solution |
| Author | Institution |
| WANG Yu-qin |
Langfang Radio and TV University, Langfang , China |
| LU Pin |
Hebei University, Baoding , China |
| MA Yan-fei |
Langfang Normal College, Langfang , China |
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| Abstract: |
| 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. |
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