No passwords, No popups, No cost
we earn from your eBay & Amazon purchases

Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
curated with aloha by
ted_yosem
Ted Mooney, P.E. RET
- Pine Beach, NJ
finishing.com -- The Home Page of the Finishing Industry


  pub
  The authoritative public forum
  for Metal Finishing since 1989

-----

Haze film on Sterling Silver



 

I am being told of a cleaning problem in our washout department. Seems all the sterling silver we put through our washout line comes out with a haze on it that has to be dry wheeled off. We had the haze on the surface analyzed and were told there were residual salts from the polishing compound on the surface. I am trying to figure out what is going wrong. Our system consists of a soak tank, ultrasonic tank with Oakite [Chemetall], then first rinse and finally second rinse followed by a hot air dry. The only tank with ultrasonic action is the ultrasonic clean. Before I spend a lot of hours designing experiments to weed out all the variables, has anyone had this problem or know of something obvious that washout is doing wrong. I just found out that we are dry wheeling thousands of parts and living with this but I think that's ridiculous.

Tino Volpe
- Cumberland, Rhode Island



I would look at high temperature and high pH first.

tom pullizzi animated    tomPullizziSignature
Tom Pullizzi
Falls Township, Pennsylvania
 




(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

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

Finishing
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g,
& Software


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"