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topic 10205

Electropolishing - iron concentration


 

We always have this problem when starting a new tank. The stainless steel will simply not electropolish. When topping up the tank its no problem.

Is it due to a lack of Fe deposits? We think this may be the problem so we are electropolishing carbon steel in our stainless steel tacks simply to dissolve some solids into it. We have also turned the temperature up to try and evaporate some of the water and lower the specific gravity.

Can anyone inform me as to whether this is the problem. When attempting to electropolish nothing happens, it does but ever sooooo slow.

It is definitely a chemical problem, this is happened twice, are we supposed to keep the iron concentration within a certain range?

Chris Crawshaw
- England


 

I do recall leaving some of the old electropolishing solution in the bottom of the tank when making up a new bath.

tom pullizzi monitor
Tom Pullizzi
Falls Township,
   Pennsylvania 



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