Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
-----
Oxide on the stud
Hey, I have problems with only 1 part number, we have more than 150 part numbers with stud in the upper side, but only we have problems with a particular part number, after phosphating pretreatment the stud of this part number shows a dust with the appearance of the oxide, when we produce this part number, we have to decrease the pH of the Rinse Seal, but this is something I want to avoid, what could be the reason for this oxide in this particular part number?
Thanks
Aftermarket Automotive - Mexico
2006
Too many words but, unfortunately, too little information Luis.
What metal, shape, size and volume of parts are you talking about? What are you doing now, what is your actual sequence or process and chemicals used?
Monterrey, NL, Mexico
2006
(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)
Q, A, or Comment on THIS thread -or- Start a NEW Thread
Q, A, or Comment on THIS thread -or- Start a NEW Thread