×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Cleaning of salt bath nitrided parts

Cleaning of salt bath nitrided parts

Cleaning of salt bath nitrided parts

(OP)
The company I work for salt bath nitrides ductile iron (80-55-06) parts. I'm having a heck of a time getting these parts clean.

After then parts are pulled out of the salt bath their quenched. They are then wire brushed,then tumbled, then sonic washed and preserved.

It seems no matter how, or how many times, I sonic wash the parts, they always seem to bleed off some sort of "smut". Getting the salt off the part is no problem, it's just this smut that always seems to bleed.

Does anyone have any experience cleaning parts after a SBN bath?

RE: Cleaning of salt bath nitrided parts

What is the quenchant after the SBN bath? Is that used just to cool the parts for handling?

I suspect your process produces a fractured compound layer, and along with surface connected porosity in the casting, traps and bleeds various contaminants like salt, water, corrosion products, etc.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources