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!

*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.

Jobs

NdFeB coating adhesion

NdFeB coating adhesion

(OP)
I'm about to order the magnets for a prototype PMAC inrunner motor. The magnets will be bonded to the laminated steel rotor. I'm wondering which coating would have the best adherence to the sintered material? Ni plating or epoxy? Or is it better to completely remove the coating on the surface to be bonded? Any thoughts or experiences on this appreciated.

Miles

RE: NdFeB coating adhesion

What kind of glue you're going to choose. PU adhesives or Epoxy adhesives? Each has a different properties of adhesion on the metal surface. Moreover, you need to know what kind of environment you application is going to work and what is the operating temperature?
Before gluing, the surface on the metal should be prepared for the glue to bind on the surface. Allow no rust, No Dust and No Oil onthe metal surface.

Epoxy - Epoxy bonding is Good and if your environment is humid, then you may choose epoxy - PU bonding combination. Both Epoxy & Ni coating are good, but epoxy is better that Ni for good bonding adhesion

NDSRAM

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


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close