| HUANG Cheng-qun,YVU Shi-xue,GAO Jia-cheng.Surface Passivation of Copper Cladded Iron Powder[J],36(5):41-42,74 |
| Surface Passivation of Copper Cladded Iron Powder |
| Received:July 24, 2007 Revised:October 10, 2007 |
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| DOI： |
| KeyWord:Copper Cladding powder Passivation |
| Author | Institution |
| HUANG Cheng-qun |
Chongqing Electric Powder College, Chongqing , China |
| YVU Shi-xue |
Chongqing Electric Powder College, Chongqing , China |
| GAO Jia-cheng |
College of Materials Science and Engineering, Chongqing University, Chongqing , China |
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| Abstract: |
| Through contrast test of a common passivating agent and two compounding recipes included BTA and organic addition agent, the effectiveness and mechanics of passivating on the compound passivating agent to protect copper cladding from being oxidized were studied. By means of nitric acid titration test, ammonia liquor titration test, S02 accelerating corrosion test, atmospheric exposure test and temperature-moisture anticorrosion test, we can get that the effect of BTA-OP-10 0n cladding is better than other passivants. The best dosages added is BTA 0. 50-/o , OP-10 1 -3 g/ L, temperature of the process is 50 ~ 60℃ and the processing time is 3-5min. Meanwhile, the effect of corrosion resistant of compounding recipe included BTA and organic addition agent is better than that of only including BTA, the effect of corrosion resistant of only including BTA is better than that of kalium soap used in these days. |
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