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| Re: [Orchid] Fire scale Prevention During Vacuum Casting | ||
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From: Volpe, Constantino Date: Mon Jan 10 20:34:48 2005 |
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========[ Invite a Friend - http://www.ganoksin.com/invite.htm ]======== James, It is the silver that has the affinity for oxygen. The reason you don't see fire stain in fine silver is that the fire stain is oxidized copper. The oxygen in the silver will find the copper and oxidize it. Tino Volpe Metallurgist, Technical Manager Tiffany & Co. 300 Maple Ridge Drive Cumberland, RI 02864-8707 401-288-0124 Constantino.Volpe AT Tiffany.com ____________________________________________________________________ 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 ____________________________________________________________________ |
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