Method and apparatus for removing excess material from sand...

Details Method and apparatus for removing excess material from sand... Method and apparatus for removing excess material from sand...

B - Operations, Transporting

22

C

22/11

B22C 9/18 (2006.01)

Patent

CA 1214916

ABSTRACT A method and apparatus for removing flash and other excess material from sand cores in which the cores are showered with impact particles of relatively soft material and contained in moving air stream issuing from a plurality of nozzles directed against opposite sides of cores being cleaned. Low pressure air from a blower is used at the nozzles to obtain a high density of particles in the moving air stream and provided for engagement of the particles in a gentle manner with the sand cores so as to minimize surface erosion of the cores.

461283

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