[TheForge] chinese ASOs

[Jerry Frost]

----- Original Message -----
From: "Bruce Freeman" <FREEMAB@pt.fdah.com>
To: <theforge@mailman.qth.net>
Sent: Friday, April 04, 2003 9:47 AM
Subject: Re: [TheForge] chinese ASOs


> Frosty,
> It's out of my line, but the H&H Brazing Book says that this type of
> braze is done with preformed flux and sheet brazing material.  Should be
> real simple.  The only catch is the effect of the heat on the steel
> plate.  How would you harden it?
> Bruce
> NJ
>

Bruce:

We've been kicking heat treating the things around for a few days now and it
finally dawned on me the relatively high alloy grader blade I'll be using
probably won't need it at all.

Still, it was traditional to either quench under a stream of water from a
tower, etc. or by immersing upside down in a pond or creek and letting the
residual heat in the body temper the face. More controlled methods were
probably introduced around the turn of the 19th cent.

If we end up having to heat treat I'll use a 3" x 300 gpm. pump and
experiment till we get it right or destroy the ASO. It's a  no lose
situation, even the time spent will be educational.

Frosty
------------------------
If it ain't forged
it ain't real.
Wrought iron is.
The FrostWorks

Meadow Lakes, AK.