Artificial nice foundry sand, preparation method and application thereof
A kind of pearl sand and man-made technology, applied in the direction of casting molding equipment, manufacturing tools, metal processing equipment, etc., can solve the problems of endangering the health of production workers, poor spherical surface effect, poor regeneration performance, etc., and achieve good recycling performance, High cost performance and low thermal expansion coefficient
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[0032] Example 1: An artificial gemstone sand containing 70 grams of Al 2 O 3 , 8 grams of silicon, 2 grams of Fe 2 O 3 , 20 grams of impurities. The artificial gemstone sand is spherical, with mullite as the main crystal phase, between 10 mesh and 180 mesh, and can withstand high temperatures above 1800°C.
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[0033] Example 2: An artificial gemstone sand containing 85 grams of Al 2 O 3 , 10 grams of silicon, 2 grams of Fe 2 O 3 , 3 grams of impurities. The artificial gemstone sand is spherical, with mullite as the main crystal phase, between 10 mesh and 180 mesh, and can withstand high temperatures above 1800°C.
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[0034] Example 3: An artificial gemstone sand containing 77 grams of Al 2 O 3 , 12 grams of silicon, 2 grams of Fe 2 O 3 , 9 grams of impurities. The artificial gemstone sand is spherical, with mullite as the main crystal phase, between 10 mesh and 180 mesh, and can withstand high temperatures above 1800°C.
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