hollow ceramic spheres ( was Re: [TheForge] Chip forge )

[Jerry Frost]

Good research Terry.

Cenospheres are only good to around 1,800f so perlite would survive better. 
They're also way too small, the burner flame would blow these right out of 
the forge.

The alumina spheres by Deep Sea Floatation are 3.6" in dia. WAY too big for 
a chip forge. Well, okay, any forge I plan on building. <grin>

The alumina spheres by Custom Tech on the other hand may be darned near 
perfect if 1" isn't too large and they'll sell small quantities.

Thanks,

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

Meadow Lakes, AK.

http://www.artmetalradio.com/

----- Original Message ----- 
From: "terry l. ridder" <terrylr at blauedonau.com>


> hello;
>
> comments intermixed below.
>
>
> while i have only been following part of the discussion, it appears to
> me that what may be usable for 'chips' are cenospheres and the hollow
> ceramic spheres used in deep sea research vessels.
>
> cenospheres are a natural by-product from coal fired power plants.
> cenospheres are mostly silica and alumia and hollow.
> yes, cenospheres are extremely small.
>
> hollow ceramic microspheres
> http://www.sphereservices.com/ceno.html
>
> hollow ceramic spheres
> http://www.customtechceramics.com/news2.htm
>
> an other source of larger hollow ceramic spheres, which are used in deep
> sea research vessels is:
>
> ceramic spheres
> http://www.deepsea.com/floatation.html
>
> --
> terry l. ridder ><>
>
>>
>> Back to ideas for shapes and how to make them without taking forever. I'm 
>> thinking rounded cubes with a hole or two through them might work well. A 
>> life saver shape might be even better. Yeah, I know, these shapes might 
>> get hung up on small work (ring toss dontchaknow <grin>) but they 
>> shouldn't key together, pack or be difficult to get work in or out and 
>> they should transfer heat in and out well.
>>
>> Frosty
>>
>
> -- 
> terry l. ridder ><>
> _______________________________________________
> 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
> ___________
>
>
>