[TheForge] Re: Kaowool

[James Binnion]

An interesting thing about some super alloys, flux will eat them too  
at forge temperatures. I spilled some flux on some inconel 718 and  
was quite surprised when i took it out of the forge to see where it  
had pitted from the flux.

Jim
On Apr 14, 2006, at 5:15 PM, Demon Buddha wrote:

>
>
> Jeffrey Polaski wrote:
>
>> Yes, I don't doubt that refractory has its place. I just don't  
>> know (or
>> even know *of*) any blacksmiths who keep their forge running
>> continuously for days/weeks at a time. I don't know, but maybe
>> glassblowers do?
>
> 	Large glass operations often run them for months.  It is cheaper  
> to run the furnace 24x7 than to shut it down.  With facilities that  
> large, shutting down also runs risks of failures due to contraction  
> and expansion.
>
>> I should have added that lighter bricks will get eaten away by  
>> welding
>> flux much more easily, so heavier bricks still have their place. If
>> you're *not* doing any forge welding, then light bricks are the  
>> way to
>> go. If you are doing forge welding, then I think the best solution  
>> is to
>> put a thick layer of castable refractory (1/2"--1" thick) over the  
>> floor
>> of your forge. Or, if you can find it, a piece of ceramic shelf
>> material.
>
> 	Or a piece of 1/8" stainless sheet on the floor.  If you can get  
> scrap, one of the super alloys such as Haynes 230 would be even  
> better, but only as acrap.  Last time I priced 230, about ten or  
> more years ago, 1/8 plate was about $125/sq-ft.  I'd try stainless  
> first.
> _______________________________________________
> Manage membership or unsubscribe at:
> http://mailman.qth.net/mailman/listinfo/theforge
> theforge mail list group photo site is
> http://www.photoaccess.com
> Login:  blacksmithblacksmith at hotmail.com
> password:  anvil
> ___________
>
>

James Binnion
jbin at well.com