Wednesday, December 12, 2018
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Sand casting

Sand casting, also known as sand molded casting, is a metal casting process characterized by using sand as the mold material. 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. Over 70% of all metal castings are produced via sand casting process.[1] Molds made of

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Core Making Process

Type of cores Co2 core 2. Shell core 3. Quickset core 4. Cold box core It is known as gas triggered processes . Phenolic- urethane –amine gassed (cold box) process. Principle ; The binder is supplied in  2parts . Part 1- (Resin) solvent based Phenolic resin . Part 2 (Hardener) polyisocyanateMDI(methylene di-phenyldiisocyanate) The resin are mixed with sand in the

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