In a message dated 7/14/05 12:39:32 AM Eastern Daylight Time, [EMAIL PROTECTED] writes:
> all the points at which the rebars > touched each other were cad welded (I think this is the term but > it has been a while); the process uses little molds that are > filled and then fired, resulting in a corrosion free weld (no > oxide in between) > > That's cadwelding, aka thermite welding. A mixture of powdered iron and aluminum is set afire (usually by a bit of magnesium powder) and the resulting reaction will weld the steel. 73 de Jim, N2EY _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com

