Home /
T.O.C.
FAQs
 
Good
Books
Ref.
Libr.
Advertise
Here
Help
Wanted
Current
Q&A's
Search 🔍
the Site

Problem? Solution? Chime right in!
(perhaps the world's last 'no registration' site)

-----

"Anodizing Appearance Problem on Silkscreened Panels"

September 7, 2020 [ed. apologies: not posted til January 27]

Q. My name is WAN NORJANAH and I am the QA FOR SILKSCREEN INDUSTRY for COSMETIC PARTS. We process parts for DJs. We've had a reject on an anodised component. This fault I have never seen before. This is invisible when looking straight at it.

61197-1a

61197-1b 61197-1d 61197-1c

WAN NORJANAH
- MELAKA MALAYSIA
^

none
finishing.com is made possible by ...
this text gets replaced with bannerText
spacer gets replaced with bannerImages


January 2021

A. Hi Wan. Thanks for the photos and for explaining what you do. Still, it isn't possible to assist in troubleshooting until we receive details of alloy, process sequence, etc.

But the fact that you can't see this defect well when looking face on, plus the defect's visual similarity to one reported and illustrated on another thread about teflon coated hard anodizing, makes me wonder if these components have a teflon impregnation step. If so, I'd suggest that might be where the problem is arising.

Luck & Regards,

pic of Ted Mooney
Ted Mooney, P.E. RET
Aloha -- an idea worth spreading
finishing.com - Pine Beach, New Jersey
^

Q, A, or Comment on THIS thread SEARCH for Threads about ... My Topic Not Found: Start 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:

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


About/Contact    -    Privacy Policy    -    ©1995-2021 finishing.com, Pine Beach, New Jersey, USA