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A molding sand mixture, usually green sand or bentonite, is blown into a rectangular steel chamber using compressed air. The molding sand is then squeezed between two patterns, which are on the two ends of the chamber. After squeezing, one of the chamber plates swings open and the opposite plate pushes the finished mold onto a conveyor.
Green sand is an aggregate of sand, bentonite clay, pulverized coal and water. Its principal use is in making molds for metal casting . The largest portion of the aggregate is a sand, usually silica or sometimes olivine . [ 1 ]
The term "sand casting" can also refer to an object produced via the sand casting process. Sand castings are produced in specialized factories called foundries. In 2003, over 60% of all metal castings were produced via sand casting. [1] Molds made of sand are relatively cheap, and sufficiently refractory even for steel foundry use.
The store will become the anchor for the shopping center. The Hobby Lobby store will occupy two large spaces, a 40,945-square foot space previously occupied by Lowes Foods and a 12,000-square foot ...
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Hobby Lobby Stores, Inc., formerly Hobby Lobby Creative Centers, is an American retail company. It owns a chain of arts and crafts stores with a volume of over $5 billion in 2018. [ 1 ] The chain has 1,001 stores in 48 U.S. states.
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