finishing.com -- The Home Page of the Finishing Industry
We've been striving for 23 years to build the
world's best website -- it's worth your time smiley
    no popups, no spam
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



This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to 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.