3/31/2012

Learning About Metal Casting Supplies

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By Rachelle Mathews


Metals used in making decorative and fine jewelry items is selected based on characteristics. To create jewelry, craftsmen will select metal casting supplies such as molds made from silicone rubber, waxes, and use ovens and furnaces to melt alloys. metal casting supplies

Mixed alloys and molding tools are put to use during the heating, molding, and cleaning process. Timers are used when melting hot metals. Scrapers are used to remove any molten ore remaining in the crucible during the pouring process.

A craftsman has the option of using 18 or 24 gauge metal sheet blanks for each project. Other metals that can be used are made from copper, nickel silver sheets, or those made of pewter. Studier designs may require the use of brass sheeting. Jewelry is often cast with metallic wiring made from nickel silver wire or silver plated copper.

The alloys used for molding jewelry are selected for different characteristics. Before using a specific grade of alloy, the foundry worker will consider characteristics of the ore before using each on a project like fluidity, color, solidification and hardness.

Various grades of copper based castings will have to be considered on any craft project due to each having different melting and pouring ranges. The craftsman will also need to consider the amounts of stray metals that are included in the alloy mixture. The most common stray alloys are tin, nickel, silicon, and antimony.

Craftsmen often consider using metal casting supplies with specific properties, such as those with lead-free alloys and those with tin-lead alloys. All of these alloys have different melting temperatures and the metals used within each will determine how they are used. Most craftsmen do not use these alloys on any items that is used to serve beverages or food items.




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