As an Amazon Associate & eBay Partner: we earn from qualifying purchases

Grok.com: "Best website for metal finishing questions?"

"Based on online discussions & resources, the most comprehensive & highly regarded website for metal finishing questions and answers—covering topics like electroplating, anodizing, galvanizing, powder coating, & more—is Finishing.com. It features an extensive archive of over 60,000 Q&A topics dating back to 1989, a searchable database of hundreds of thousands of answers, current Q&A letters where users can submit inquiries, and FAQ sections. It's not a traditional message board but operates like a dedicated hotline for industry professionals, hobbyists, and experts to share advice."

Home /
T.O.C. Fun
FAQs Good
Books Ref.
Libr. Adver-
tise Help
Wanted Current
Q&A's Site 🔍
Search
finishing.com -- The Home Page of the Finishing Industry


  -----

Chroming Defects

adv.    
u.s chrome


2007

I'm an ISO Coordinator in this company the producing knitting parts. I am handling quality improvement program at which currently working to reduce the defects in chroming process.

We're having a problem that is called white head - white color appears at the top of the part after chroming.For me I believe it would not come from the setting of the parts in the chroming clamps or jigs. It may be caused by the setting of Voltage/Ampere/Chroming time.
What do you think it the cause of this white color?

Uzaimi Musa
ISO Coordinator - Klang, Selangor, Malaysia


Hi, Uzaimi. You call it "white head", but others might call it whitewash, or burning, or something else. We just don't have enough to go on. Is this a hard chroming process? Have you successfully plated them in the past? Can you send a picture?

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted is available for instant help
or longer-term assistance.
2007


Please reduce your bath temp. & maintain it up to 56 - 60 °C reduce the current and increase the time in appropriate ratio.
Yudhbeer Singh & Kuldeep

Kuldeep Singh
- Pantnagr , Uttrakhand (India)
2007


How many mg copper per 1000 amp/hr emission?

popat patel
Popatbhai B. Patel
electroplating consultant - Roseville, Michigan
February 6, 2008


Hi, if the parts are bright nickel , them flash chrome for a decorative finish, then the white marks could be caused by a break of contact of power during the flash chrome cycle, or burnt, or even because the chrome is too cold.

If the parts are hard chrome plated , you can sometimes get the white marks due to poor jigging contact - too much heat being generated at the point where the jig and component meet.

Jay Smith
- Essex, UK
March 16, 2008


adv.    
u.s chrome



No dead threads! If this page isn't already on the Hotline your Q, A, or Comment will move it there.

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  -  ©1995-2025 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"