Ababi on fri 21 mar 03
This is one of the two annoying parts of crystal firing:
Sieving the calcined materials: Clay, kaolin or red clay and zinc. How can I sieve
them? I tried with my disc http://tinyclick.com/?OH8OYJ attached to a power tool.
with a 80# sieve. Does anyone (or anytwo) has a better advise for me?
Ababi Sharon
Glaze addict
Kibbutz Shoval Israel
ababisha@shoval.org.il
http://members4.clubphoto.com/ababi306910/
http://www.milkywayceramics.com/cgallery/asharon.htm
and also
http://www.israel-ceramics.org/membersGallery/personalpage.asp?MID=507
The second part is to be near the kiln in the right time means no more than 11 hours.
Jocelyn McAuley on sat 22 mar 03
Hello Ababi
I agree- sieving calcined materials is a pain!
My method is intensive- but I don't lose any material in the sieve:
-after calcining my materials I grind them in a dedicated grinder. I have
an old coffee grinder just for zinc.
-I then (yes, with my respirator on) dry sift the ground zinc. If it
won't fit through the mesh, I grind again.
Good luck
Jocelyn
On Fri, 21 Mar 2003, Ababi wrote:
> Date: Fri, 21 Mar 2003 19:11:49 +0200
> From: Ababi
> To: CLAYART@LSV.CERAMICS.ORG
> Subject: Advise is needed: Sieving calcined materials.
>
> This is one of the two annoying parts of crystal firing:
> Sieving the calcined materials: Clay, kaolin or red clay and zinc. How can I sieve
> them? I tried with my disc http://tinyclick.com/?OH8OYJ attached to a power tool.
>
> with a 80# sieve. Does anyone (or anytwo) has a better advise for me?
> Ababi Sharon
> Glaze addict
> Kibbutz Shoval Israel
> ababisha@shoval.org.il
> http://members4.clubphoto.com/ababi306910/
> http://www.milkywayceramics.com/cgallery/asharon.htm
> and also
> http://www.israel-ceramics.org/membersGallery/personalpage.asp?MID=507
>
> The second part is to be near the kiln in the right time means no more than 11 hours.
>
> ______________________________________________________________________________
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at melpots@pclink.com.
>
--
Jocelyn McAuley ><<'> jocie@worlddomination.net
Eugene, Oregon http://www.ceramicism.com
Craig Martell on sat 22 mar 03
Hello Ababi:
I usually calcine clays to 1500 degrees F. At that temperature they come
out of the kiln as powder and I don't sieve them until I wet and mix them
with other glaze ingredients. If you are firing hotter that 1500F for some
reason you may be sintering the materials, making the sieving
necessary. If this is true, you might try calcining at a lower temperature.
regards, Craig Martell Hopewell, Oregon
| |
|
