annealing brass in the oven

[Daniel Gurnee]

on 11/25/01 9:00 PM, Daniel Gurnee at dgurnee@humboldt1.com wrote:

CAUT

Addendum to my last: Annealing brass, two sources.

ŒANNEALING PROCEDURE¹
ŒHeat to dull red color, let cool to a grey color, immediately quench in
water or picking solution.²
³The Jeweler¹s Bench Reference² by Harold O¹Connor,  Pub. Dunconor book, 4th
printing 1982

ANNEALING:
³This can be done with a kiln or torch. Colors are best seen in a dimly-lit
area. Handy flux may be painted onto metal to serve as a temperature
indicator: it is clear at 1100° F.  . .   Œ
³The Complete Metalsmith², Tim McCreight, Pub. Davis Publications, Mass.,
1982.

Dan Gurnee, RPT, Ret. HSU.


> Greetings CAUT,
> 
> Learning from the HSU Art Dept. and Hobart Brown renowned for initiating the
> Kinetic Sculptor Race at Ferndale CA, to totally aneal work hardened copper
> and brass, heat to glowing red and quench in cold water.
> 
> Dan Gurnee RPT, Retired from HSU
> 
> 
> 
> on 11/25/01 5:45 PM, Bdshull@aol.com at Bdshull@aol.com wrote:
> 
>> Hi, Mark,
>> 
>> A few months ago I decided to try the oven.  I put the rails and good butt
>> plates in the oven for an hour at full blast ("broil"), turned the oven off
>> and left in overnight to cool (slow cooling...).  The butt plates were very
>> bendable, unlike before - I could not break them.  I have done it on two
>> action rails with the same results.  I am not sure of the exact temperature,
>> but I believe the temperature needs to exceed 650 degrees.
>> 
>> Of course it is more scientific to use the crayons. The heat-sensitive
>> crayons are a precise indicator of the temperature.  But I am pleased with
>> the results of my oven.  Don't know how many times it can manage full heat
>> for an hour, but it seemed to do OK.
>> 
>> 
>> Bill Shull, RPT
>> La Sierra University, CSUSB
>> 
>> In a message dated 11/25/01 1:00:47 PM Pacific Standard Time,
>> cramer@BrandonU.CA writes:
>> 
>> << I recall a discussion about annealing brass-flange rails in the oven.
>> Someone may have even taught a class on this subject.
>> 
>> Can someone please help me out with the particulars?
>> 
>> thanks,
>> 
>> Mark Cramer, >>
>> 
> 
>