C
Connie
Hi everyone!
I'm looking for some answers on a plating issue. Here is the scoop:
We have some shafts made with 12L14 steele which get plated with Zinc per ES-1030 and then coated with yellow chromate per ES-1100 at a thickness of .0004-.0006. The problem I am seeing is they are comming back with what looks like a chemical corrosion in spots. It looks like the metal actually was eaten away leaving pitting spots. the platers don't seem to have any idea why this is happening since they do not use that strong of chemicals.
Any Ideas!!!!
Connie
I'm looking for some answers on a plating issue. Here is the scoop:
We have some shafts made with 12L14 steele which get plated with Zinc per ES-1030 and then coated with yellow chromate per ES-1100 at a thickness of .0004-.0006. The problem I am seeing is they are comming back with what looks like a chemical corrosion in spots. It looks like the metal actually was eaten away leaving pitting spots. the platers don't seem to have any idea why this is happening since they do not use that strong of chemicals.
Any Ideas!!!!
Connie