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Exploring the: Quality Control Zone
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- Zinc Corrosion
- We have been experiencing white corrosion (zinc oxide) while our steel components are in storage. All of these assemblies are nitrogen-brazed components and then are subject to clear zinc plating.What do you think is the root of our problems?
Ask an Expert Published: 5/22/2013
- “Lumpy” Stannate Tin
- I am having problems plating stannate tin on parts that have a copper flash. Parts are “lumpy” and dewetted.
Ask an Expert Published: 5/16/2013
- Flaking Nickel
- Our stripping process sometimes does not remove all of the nickel plate. When re-plated, the areas that still have “old” nickel on the surface tend to flake. Do you have any suggestions for solving this problem?
Ask an Expert Published: 5/10/2013
- Fingerprints on Plated Parts
- I have received two questions in the last few months regarding fingerprints on finished plated parts. This is not an uncommon problem in the world of plating. Looking through my archives, I realized it would be good to revisit this topic:
Ask an Expert Published: 2/26/2013
- Nickel Plating Problem
- We have a problem with our acid nickel bath. What was once a bright nickel color is now a gray color, although it still looks bright. When we set the rectifier to the correct amperage for the load, the parts appear to burn. Also, we can only leave t...
Ask an Expert Published: 1/25/2013
- White Patches
- What is a good remedy for white patches in an alkaline non-cyanide zinc plating bath?
Ask an Expert Published: 12/14/2012
- Bright Nickel Problems
- My bright nickel plating bath is giving me a lot of grief. Our problem is the lack of uniform brightness on the part. The side of the part directly facing the anode is bright in some cases but not others. If I attempt to plate multiple parts in the ...
Ask an Expert Published: 11/30/2012
- Cloudy Decorative Chrome
- We have a decorative chrome plating process using hex-chrome and find that, in the high current density areas, there is cloudiness more often than not. What should we be looking for to solve this problem?
Ask an Expert Published: 11/15/2012
- Pits in Electroless Nickel
- We are plating electroless nickel (EN) on leaded brass, but find pits in the EN layer. What is the best way to prepare the leaded brass substrate so that we do not get a pitted finish?
Ask an Expert Published: 10/5/2012
- Cloudy Decorative Chrome
- We have a decorative chrome plating process using hex-chrome and find that, in the high current density areas, there is cloudiness more often than not. What should we be looking for to solve this problem?
Ask an Expert Published: 9/25/2012