Bright-Dipping Brass
Our company has to make a major decision because we are going to try and replace the nitric acid (20%) bright dip line that we have used to clean brass fittings for the last 40 years.
Q. Our company has to make a major decision because we are going to try and replace the nitric acid (20%) bright dip line that we have used to clean brass fittings for the last 40 years. It’s basically a large in-line basket dip system and runs eight hrs/day. Can you direct us to any good reference materials? We have been pulled in all directions with citric acid or peroxide cleaning and know about the “appearance” differences, but then it comes back to speed and, of course, our chemical supplier thinks we need to stick with nitric acid. We also need to consider that we run stainless steel parts through this for passivation, and the nitric does work well in cleaning flux from brass and copper brazed assemblies. Any suggestions you have would be appreciated. R.J.
Related Content
-
Corrosion Resistance Testing for Powder Coating
Salt spray can be useful to help compare different pretreatment methods and coatings but it does not tell us much about the corrosion resistance of a part over time in the field. Powder coating expert Rodger Talbert offers insights into how to get a better idea of how to improve a part’s corrosion resistance in the real world.
-
From Drain to Gain with Smart Wastewater Recovery
Incorporating digital monitoring to maximize performance.
-
Advantages to Pumped Eductor Agitation
Not all agitation methods are created equally. Pumped agitation with eductor nozzles can improve process tanks and quickly show a reduction in operating costs while keeping staff safe, following environmental legislation and preventing pollution.