Hi!
I am looking for a chromic acid based deoxidizer/desmutter formula. The Wernick, Pinner and Sheasby book has a guide. My old man had a copy laying around but just like most things in life; when you are looking for something, it's never there, but when you don't need it, you trip over it all...
"Mixture of 50% v/v nitric acid + 20-25% v/v sulfuric acid + 1-2 lb/gal ammonium bifluoride, balance water to 100%."
It is a tri-acid solution for desmutting/deoxitsizing die cast aluminum allow (383) before chromate conversion coating.
Can anyone walk me through the formula plz! Thanks!
Here...
The aluminum part i want to protect is part of a washing machine. It's called a spider-arm, and it's attached to a stainless steel drum. The drum is of course where you put your clothes. It spins at speeds of 1200rpm. The load (clothes) can be unevenly distributed in the drum, therefore it could...
The aluminum part i want to seal is part of a washing machine. It's called a spider-arm, and it's attached to a stainless steel drum. The drum is of course where you put your clothes.
This setup is (afaik) only on front load washers. The thing is, the spider always corrodes and breaks - mine...
