[Jewelry making - Article 01018] - Re: [Orchid] Ceramic shell casting

[James Binnion]

========[ Invite a Friend - http://www.ganoksin.com/invite.htm  ]========

    From a ceramics web site 

          Molochite is made by firing raw low-iron kaolin to very high
          temperatures to bring about maximum conversion of the clay
          crystal to crystalline mullite (usually 95%+). The latter has
          high mechanical stability and resistance to thermal shock. 

          Molochite is available in a wide range of sizes (from 8 to 325
          mesh) and in dedusted form. It is a very uniform materials. It
          can be used as a very white firing porcelain grog and
          aggregate material. However, its chief use is in the
          investment casting industry, where successive coats of
          increasingly coarser molochite slurry are applied onto wax
          models. After drying, the wax is melted out and the molten
          metal poured in. 

          Since molochite is used for mechanical purposes in most
          applications, its chemistry is not usually a consideration. 

Jim Binnion

James Binnion Metal Arts
Phone (360) 756-6550
Toll Free (877) 408 7287
Fax (360) 756-2160
http://www.mokume-gane.com
jbin AT mokume-gane.com
Member of the Better Business Bureau

____________________________________________________________________
T h e   O r c h i d   L i s t
Open Electronic Forum for Jewelry Manufacturing Methods and Procedures
____________________________________________________________________
Orchid FAQ:
~ http://www.ganoksin.com/orchid/faq.htm
Orchid Archives:
~ http://www.ganoksin.com/orchid/archive
Orchid Galleries:
~ http://www.ganoksin.com/orchid/gallery.htm
Invite a Friend:
~ http://www.ganoksin.com/invite.htm
____________________________________________________________________
Tips From The Jeweler's Bench - Article Archive
~ http://www.ganoksin.com/borisat/tip_sear.htm
The Jeweler's Selected Bibliography List
~ http://www.ganoksin.com/jewelry-books
Buy Orchid Jewelry:
~ http://www.ganoksin.com/shop
____________________________________________________________________
-Unsubscribe:
-Email: orchid-request AT ganoksin.com Body=unsubscribe subject=blank
____________________________________________________________________