METHOD OF FORMING LAMINAR MOLD
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United States of America Patent
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Jan 25, 2016
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Aug 30, 2013
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A coated sand obtained by coating a refractory aggregate with a water-soluble binder is supplied onto a table disposed within a frame, and spread by a spreading member to form a thin sand layer having a predetermined thickness and a planar surface. The surface of the sand layer is covered by a mask, and an aqueous medium is sprayed from a sprayer over a part of the sand layer to be cured. By heating the part of the sand layer over which the aqueous medium has been sprayed, by using a heater, a mold layer having an intended shape is solidified or cured. By repeating the above-described steps for forming the mold layer a required number of times, mold layers are successively formed and superposed on each other, whereby a laminar casting mold having an intended three-dimensional configuration is obtained as a one-piece body consisting of the mold layers.
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