Ask the experts! These processors and consultants have been there and done that. Post your enigma now!


UBBFriend: Email This Page to Someone!
  Plastic processing forums for extrusion information and advice and for other feed screw applications.
  Extrusion, Single Screw
  Die cleaning equipment

Post New Topic  Post A Reply
profile | register | preferences | faq | search

next newest topic | next oldest topic
Author Topic:   Die cleaning equipment
senortape
Member

Posts: 1
From:Ringwood, NJ, USA
Registered: Jun 2003

posted June 17, 2003 01:24 PM     Click Here to See the Profile for senortape   Click Here to Email senortape     Edit/Delete Message   Reply w/Quote
Anything new in equipment to clean residue plastic from dies and adaptors?

IP: Logged

felix
Senior Member

Posts: 13
From:Canada
Registered: Jul 2001

posted June 17, 2003 04:31 PM     Click Here to See the Profile for felix   Click Here to Email felix     Edit/Delete Message   Reply w/Quote
Good ole elbow grease young fellah!

quote:
Originally posted by senortape:
Anything new in equipment to clean residue plastic from dies and adaptors?

IP: Logged

M.Blader
Senior Member

Posts: 11
From:noplace
Registered: Jun 2003

posted June 17, 2003 09:53 PM     Click Here to See the Profile for M.Blader   Click Here to Email M.Blader     Edit/Delete Message   Reply w/Quote
There is a new thing with ultra-sonics.

3 years in the making from what I understand.
It has more to do with extruding a type
of clay threw heads,dies,etc.
(honing?)

The clay more or less polishes the inside
of the bores, allowing better heat transfer
and surface finish.

Where the ultra-sonics comes in to the picture is beyond me.

Anywho,it's supposed to give the ID's a mirror like finish, even the old mixers and
heads that are painted in that olive green color from WW2.


IP: Logged

M.Blader
Senior Member

Posts: 11
From:noplace
Registered: Jun 2003

posted June 17, 2003 10:43 PM     Click Here to See the Profile for M.Blader   Click Here to Email M.Blader     Edit/Delete Message   Reply w/Quote
ALSO:

In 99% of the cleaning, I would have to agree
with Felix.
Depending on the type of material your working with, and the type of coatings (stainless,chrome,HS...)will determin
weather you get a lunch break or not.

I have found it all ends with steel wool,BUCKETS of waterless hand soap, and a putty knife.

Some things will never change.

IP: Logged

Bob Cunningham
Senior Member

Posts: 45
From:Amesbury, Mass
Registered: Nov 2002

posted June 18, 2003 07:58 AM     Click Here to See the Profile for Bob Cunningham   Click Here to Email Bob Cunningham     Edit/Delete Message   Reply w/Quote
Depending on process, etc., I've seen thin dense chrome and titanium nitride plating on dies (especially the lips) reduce plate-out in some circumstances. If your equipment is completely unplated, you might start with some electroless nickel plating to help keep the flow moving (as long as the base metal is in good enough shape to hold the plating), this might allow you to run longer between cleanings. Also, depending on what steel was used for manufacture, you might be able to put the parts in a vacuum-pyrolysis oven (Beringer used to make these, but I think they are owned by Dynisco now). I've heard of some companies that use a fluid-bed cleaning system as well.

-Bob Cunningham

IP: Logged

Steve H
Moderator

Posts: 193
From:New Zealand
Registered: Jun 2001

posted June 18, 2003 08:07 PM     Click Here to See the Profile for Steve H   Click Here to Email Steve H     Edit/Delete Message   Reply w/Quote
If you try electroless nickel, be sure to get it heat treated to increase the platings "hardness". Heat treating increases ENP from 40 Rockwall to around 60 (Duplex Hard Chrome 70 Rockwall)

Steve H

IP: Logged

All times are ET (US)

next newest topic | next oldest topic

Administrative Options: Close Topic | Archive/Move | Delete Topic
Post New Topic  Post A Reply
Hop to:

Contact Us | Feed Screw Designs

Powered by Infopop www.infopop.com © 2000
Ultimate Bulletin Board 5.45a