No passwords, No popups, No cost, No AI:
we earn from 'affiliate link' purchases, making the site possible

Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

finishing.com -- The Home Page of the Finishing Industry

  The authoritative public forum
  for Metal Finishing since 1989

-----

Advanced methods in hot blackening

We are currently facing problems with Blackening like color variations (Brownish Color) and Rust formed during applications (As our products are QC products,Rust formed at low temperatures).We want to know any advanced methods of blackening process available to get better serviceability for low temperature applications.

Vinoth Kumar.J
- Coimbatore, Tamil nadu, India
2005

It's not clear whether you are doing this process yourself or just specifying it, but in either case jumping to a new process in lieu of applying QA to the existing process may not be the right approach. Certainly you can go to black chrome or another black plated finish, or you can switch to salt bath nitriding, or apply a dark PVD coating. But it's also possible that, properly maintained, a simple black oxide finish will meet your needs.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2005

adv.

(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: