Sand Core and Mold Drying Ovens

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These ovens are often referred to as sand core dryers, mold dryers, or core drying ovens. The sand core dryer evaporates the water and leaves the graphite behind. Sand core and mold drying ovens are used throughout the foundry industry to prepare a variety of molds and cores. Before sand molds and cores can accept the molten steel, aluminum, or other metal they must be dipped or sprayed with a core wash on the interior. The sand casting process starts with a refractory wash that provides a better surface finish on the casting, protects the sand mold from the heat as it enters the mold cavity, and prevents the metal from sticking to the mold during cooling.

After being applied, the wash must be dried, most commonly in a conveyor oven. Wisconsin Oven’s sand core drying ovens use high-velocity impingement and other technology to increase energy efficiency and decrease drying time which results in an increased production rate and a reduced cost per part.

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