Melting and Pouring - Non Reactive Alloys
Melting for both investment and sand casting is performed using electric induction furnaces. Two 400 pound capacity box furnaces handle the larger pours. A smaller lift coil with a 200 pound capacity is used for alloys with lower melting points such as aluminum and brass. It is also used for smaller pours of non-ferrous alloys to reduce waste. All alloys are QC checked on our spectrometer prior to pouring and adjusted to insure conformance with specifications.
|Investment shells are pre-heated in a kiln before pouring to insure proper filling and minimize casting defects.|
|The molten metal from the box furnace is poured into a pre-heated ladle that is used to pour the molds. The lift coil furnace melts alloys in a crucible that is also used for pouring. The use of separate crucibles for each base alloy prevents cross contamination of the metals.|
|Ceramic and glass cloth filters are used in each mold to eliminate impurities and inclusion from the metal as it is cast.|
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