How to dismantle transformer? - Page 2 - diyAudio
Go Back   Home > Forums > Amplifiers > Power Supplies

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 22nd July 2006, 11:19 AM   #11
luka is offline luka  Slovenia
diyAudio Member
 
luka's Avatar
 
Join Date: Sep 2005
Location: in Slovenia :)
Send a message via Skype™ to luka
I think it would be best if you would put it in boiling water for 10min+.It worked for me.But i did damege the bobblin in the process,but it can be done.
  Reply With Quote
Old 22nd July 2006, 12:39 PM   #12
Did it Himself
diyAudio Member
 
richie00boy's Avatar
 
Join Date: Nov 2003
Location: Gloucestershire, England, UK
In the transformer factory I worked in, we used to soak the transformers for rewinding in solvent.
__________________
www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more.
  Reply With Quote
Old 22nd July 2006, 01:50 PM   #13
luka is offline luka  Slovenia
diyAudio Member
 
luka's Avatar
 
Join Date: Sep 2005
Location: in Slovenia :)
Send a message via Skype™ to luka
What kind of solvent
  Reply With Quote
Old 28th July 2006, 06:42 AM   #14
diyAudio Member
 
Join Date: Dec 2001
Location: Earth
Methods of removing it is to dip the whole tranny into thinner. The thinner will dilute the varnish making it easier to work with.

Also another way to liquidfy your varnish is to bake the trannies to 180-200C. At this temperature varnish will start to liquidfy and will start to flow out of the trannies(position them in a way the varnish can flow).
Also use some form of vibration while trying to remove the core will help.
I use this method when trying to remove trannies for rewind at our tranny workshop
Hope this helps
Nicholas
  Reply With Quote
Old 28th July 2006, 08:06 AM   #15
diyAudio Member
 
Join Date: Nov 2004
Location: sk
Send a message via AIM to ocool_15 Send a message via Yahoo to ocool_15
If your core is a laminated type what has always worked for me is a stove element. Put in on there sometimes with a lid overtop works fine. I think boiling or water in general will corrode or damage the material. Getting the first E is the hardest and may be damaged, while its warm you can usually break or pry apart sections in no particular order. Re heat and repeat until its done. I've never wrecked the plastic bobbin either.
  Reply With Quote
Old 29th July 2006, 08:22 AM   #16
diyAudio Member
 
ifrythings's Avatar
 
Join Date: Oct 2005
Quote:
Originally posted by ocool_15
If your core is a laminated type what has always worked for me is a stove element. Put in on there sometimes with a lid overtop works fine. I think boiling or water in general will corrode or damage the material. Getting the first E is the hardest and may be damaged, while its warm you can usually break or pry apart sections in no particular order. Re heat and repeat until its done. I've never wrecked the plastic bobbin either.

Heat gun on it for a few minutes and all the laminations fall out (with a small touch of the finger of course )

The transformers I'm dismanteling are ferrite. (But thanks for the suggestion for Laminated ones).

The heat gun works on the ferrite ones, but I got two apart and 3 cracked in the heating process
  Reply With Quote
Old 29th July 2006, 08:24 AM   #17
diyAudio Member
 
ifrythings's Avatar
 
Join Date: Oct 2005
Quote:
Originally posted by richie00boy
In the transformer factory I worked in, we used to soak the transformers for rewinding in solvent.

Quote:
Originally posted by luka
What kind of solvent

Ya richie00boy, what solvent do/did you use?
  Reply With Quote
Old 29th July 2006, 06:21 PM   #18
Did it Himself
diyAudio Member
 
richie00boy's Avatar
 
Join Date: Nov 2003
Location: Gloucestershire, England, UK
I can't remember TBH. I think it was a celulose thinner.
__________________
www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more.
  Reply With Quote
Old 30th July 2006, 01:56 PM   #19
AJT is offline AJT  Philippines
diyAudio Moderator
 
AJT's Avatar
 
Join Date: May 2003
Location: Palatiw, Pasig City
Quote:
What kind of solvent
i use lacquer thinner, i dipp the trafos in a tub full of thinner until the varnish softens up, when that fails, i just use a hacksaw and cut away the copper windings....
__________________
the best advertisement for a good audio design is the number of diy'ers wanting to build it after all the years....never the say so of so called gurus....
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Old amp-rebuild or dismantle? taylor Tubes / Valves 30 6th July 2002 11:39 PM


New To Site? Need Help?

All times are GMT. The time now is 05:46 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2