×
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

Moulding PET for preform

Moulding PET for preform

Moulding PET for preform

(OP)
I am looking for processing data/tips on processing PET preforms for bottle production.

I am looking at low volume Preform manufacture for decorative bottles.

With the trials so far on a very standard moulding machine I have experienced problems with voids, distortion and white streaking.

My understanding was that PET was a stiff semi-crystaline material that required high temperature for plasticising, high screw torque for screw back and high injection pressures. All this making the machine requirements for processing quite demanding, how dificult is it to processes material for this application on a standard machine?

Can anyone assist with typical processing data and explain about the material characteristics that apply to PET prforms in respect of a clear semi crystalline material.

Thank you all

Chaving

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