Abstract
The effect of the content of tin sludge in bath on the smudge and corrosion resistance on the surface of tinplating was studied. It was found that there is intimate connection between the composition of tin sludge and the composition of smudge. With the increase of sludge added to bath, the degree of smudge on the surface of coating after reflowing increases. The results of XPS show the main composition of tin sludge is stannic oxide, so is the composition of smudge. In addition, by means of ISV and ATC value testing which characterize the corrosion resistance of coating, it was found that the corrosion resistance of coating declines with the increase of sludge. Consequently, it is very necessary to control the content of sludge in the bath by means of continuous filtration in the process of electroplating.
| Original language | English |
|---|---|
| Pages (from-to) | 930-932 |
| Number of pages | 3 |
| Journal | Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals |
| Volume | 11 |
| Issue number | 5 |
| State | Published - Oct 2001 |
Keywords
- Corrosion resistance
- Sludge
- Smudge
- Tinplating
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