[TheForge] brazing revisited

[Grover.Richardson at gtri.gatech.edu]

I used the pencil trick in College where they had us brazing pieces together.  Now honestly, I don't remember the type of braze or anything else, just this odd piece of trivia.  At this point I've had my wife twice as long as her parents had her, and things are getting fuzzy when I try to remember<G>.  Just as a reference to when I was in college and met the wife.<G>  The wife says by now it's my fault if she is messed up.<G>

-----Original Message-----
From: theforge-bounces at mailman.qth.net [mailto:theforge-bounces at mailman.qth.net] On Behalf Of Andy Gladish
Sent: Thursday, January 28, 2010 11:50 AM
To: Blacksmithing List Sponsored by ABANA
Subject: Re: [TheForge] brazing revisited

Thanks- the pencil trick worked very well with plumbing solder, but I  
don't think it makes a strong enough joint- I'll try one of these with  
silver braze.
The Harris 15% silver really is a pleasure to use, though color match  
isn't very good (on red brass pipe).
So far best results come from TIG weld with Silicon Bronze filler, though  
the zinc in the pipe has an annoying tendency to cook off at a few degrees  
above welding temp...takes a light touch indeed to get a decent bead.
There's a kind of momentum as I heat the pipe, once its hot enough to be  
willing to weld, difficult to back off so that the zinc doesn't burn off.
Fun stuff.
andy

On Thu, 28 Jan 2010 08:05:40 -0800, <Grover.Richardson at gtri.gatech.edu>  
wrote:

> Lenox Sterling(r) ColdCoat(r) Thermal Shield Paste 32 oz. WS80326 1UYK4  
> 36.60
> Markal Cool Gel Heat Barrier Spray 16 oz. 83495G 2AGV8 13.92
> Cool Blue(tm) Heat Sink Paste 11 oz. 91861 5KH10 11.48
>
> Just found this.
>> From Grainger.com
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