finishing.com -- The Home Page of the Finishing Industry
Serious Education & the most FUN
you can have in metal finishing smiley

No popups, spam, registration or passwords
HomeFAQsSuggested
Books
Help
Wanteds
Advertise
on this site
FORUM
current topics
topic 50346

Passivating Heat Treated Titanium


October 21, 2008

Hello,

I am passivating heat treated Titanium and would like to know if there is an easier way to break the heat coating prior to alkaline cleaning and Acid passivation. I am currently breaking the surface with scotch-brite pads, but this is very labor intensive. If I don't prep the parts with the scotch-brite, it takes a long time for the acid to react with the oxide layer. Any suggestions would be appreciated.

Thank you in advance.

Michael Hall
Metal Finishing - Ottawa, Ontario, Canada

October 22, 2008

Change your heat treat process to a vacuum furnace or a reducing atmosphere and you will not get the oxide coating.
Abrasive blasting is a lot quicker and probably cheaper than scotch brite after the initial cost.

James Watts
- Navarre, Florida


October 30, 2008

Mr. Watts,

We tried as you suggested with the abrasive blasting and the passivation process is working quite nicely now. It is a lot quicker and with a more uniform finish.

Thank you !

Michael Hall
- Ottawa, Ontario, Canada



If you have a question in mind which seems off topic, please Search the Site

ADD a Comment to THIS thread START a NEW threadView CURRENT TOPICS

Disclaimer: It's not possible to 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 may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices


©1995-2018 finishing.com, Inc., Pine Beach, NJ   -   About finishing.com   -  Privacy Policy
How Google uses data when you visit this site.