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Tuesday, 26 August 2014

Semi-Permanent Mould Casting

Semi-Permanent Mould Casting Points : Semi-Permanent Mould Casting Process Semi-permanent mold is casting process make Aluminum alloy castings by re-usable metal molds and sand cores to shape internal passage in casting. Molds are usually arranged in two halves - sand cores being locate into place before two halves are located jointly. Molten metal flows into mold cavity and surrounds sand core as filling mold cavity. While the casting is detached as of the mold sand core is removed as of the casting leaving an inside passage in casting. Re-usable metal molds are use time and again, but sand cores must be replaced every time product is cast, thus the term semi-permanent molding. Semi-permanent moldings afford an extremely high accuracy quality to casting at a reduced price compare to sand casting processes.

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