The Cyber-Spy.Com Usenet Archive Feeds Directly
From The Open And Publicly Available Newsgroup
This Group And Thousands Of Others Are Available
On Most IS NNTP News Servers On Port 119.
Cyber-Spy.Com Is NOT Responsible For Any Topic,
Opinions Or Content Posted To This Or Any Other
Newsgroup. This Web Archive Of The Newsgroup And
Posts Are For Informational Purposes Only.
From: "wayne makowicki"
Subject: Re: welding a transformer core
X-Newsreader: Microsoft Outlook Express 5.50.4807.1700
Date: Mon, 16 Dec 2002 13:22:04 GMT
NNTP-Posting-Date: Mon, 16 Dec 2002 05:22:04 PST
Organization: EarthLink Inc. -- http://www.EarthLink.net
Wow you win my bid for the man with alot of time. Looks like this project is
a real challange. Nice work.
"Viktor Mikhailovich Polesov" wrote in message
> I milled out the welds of a salvaged microwave oven transformer to
> disassemble the core to get the secondary wiring out, in order to
> rewire it with a heavy gauge wire. This is a laminate core
> transformer, with the core made of many small sheets of what appears
> to be laminated stainless steel stacked and welded together. I
> suppose if I had been more stubborn I could have gotten the secondary
> out without disassembling the core, but I'm impatient. Even still it
> was a huge pain and even after disassembling the core, I still had to
> resort to hack-sawing the secondary wiring.
> So now I have a transformer core that I need to weld back together.
> Can anyone say for certain if stainless is commonly used here, and if
> so should I use MIG or TIG to put it back together? Heat dissipation
> while welding is a concern, because I used insulated wiring in the new
> secordary as opposed to enameled wire. I don't want to melt the
> insulation during the welding. I suppose I would be better off with
> TIG in this regard, no?
> I'm working on making a spot welder of the sort described here:
> The owner of this web page does not discuss inductive effects. Aren't
> you in danger of frying the primary-side SCR without some provisions
> in this area?
Go Back To The Cyber-Spy.Com
Usenet Web Archive Index Of
The sci.electronics.design Newsgroup