Method and apparatus for assisting removal of sand moldings...

Details Method and apparatus for assisting removal of sand moldings... Method and apparatus for assisting removal of sand moldings...

B - Operations, Transporting

22

D

B22D 29/00 (2006.01)

Patent

CA 2492073

Disclosed is a method for dislodging a mold from a casting formed within the mold. The mold may be removed from the casting by scoring the mold and applying a force sufficient to cause the mold to fracture and break into pieces. Additionally, the mold may be fractured by either explosive charges placed in the mold pack or by high energy pulsations directed at the mold. Once the mold is fractured and broken into various pieces it may then be dislodged from the casting.

La présente invention concerne un procédé de libération d'un moule de l'objet moulé formé à l'intérieur du moule. Le moule peut être enlevé de l'objet moulé en pratiquant des rayures sur le moule et en appliquant une force suffisante pour que ce dernier se fissure et se casse en plusieurs morceaux. De plus, le moule peut être cassé soit au moyen de charges d'explosif placées dans l'ensemble moule soit au moyen d'impulsions à haute énergie pointées sur le moule. Une fois que le moule est fissuré et cassé en divers morceaux, on peut l'enlever de l'objet moulé.

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