Feeding unit and method of feeding a casting

Details Feeding unit and method of feeding a casting Feeding unit and method of feeding a casting

B - Operations, Transporting

22

D

22/108

B22D 37/00 (2006.01) B22C 9/08 (2006.01)

Patent

CA 1099479

ABSTRACT OF THE DISCLOSURE A feeding unit comprises a breaker core and a riser sleeve. In a first embodiment the breaker core has a thickness of 10% of the diameter of the riser sleeve and the opening in the breaker core is from 20% to 35% of the riser sleeve diameter. In another embodiment of the invention the breaker core opening is tapered inwardly and downwardly in a generally v-cross sectional shape and one embodiment of the invention will have a symmetrical v-cross sectional area. -1-

294093

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