| Search our quarter-million Q&As |
Home of the finishing HOTLINE since 1989
-----Roughness in electroless nickel plating of valve balls
our branch in dubai gets lot of valve balls for electroless nickel plating
can you recommend anyway to avoid roughness on OD inspire of using 5 microns filters
- metal plating - dubai.U.A.E
1998
Assuming that the plating parameters are within limits, tank additions are made slowly in areas of intense agitation, there is zero temperature stratification, the valve is preheated in a hot rinse if it is large, surface preparation is by the book and all of those tanks are in limit, then increasing the volume of the pump is the only answer.
James Watts- Navarre, Florida
1998
I like James Watts "assumptions". I would guess that he knows as well as I do that you would be quite exceptional if you had all those factors correct all the time. I do fully agree with him and especially emphasize that correct composition - analysis every hour - and small additions frequently are essential. However I would point out that some nickels are worse than others and you would do well to try processes from different suppliers. As a generalization the slower depositing processes are more stable and thus less prone to roughness. But do not just assume this!
Peter Vivian- U.K.
1998
Sorry! Finishing.com is temporarily Read-Only.
Ted Mooney is retiring but I have several offers to take it over.
We're working hard to make sure we find it the best new home.