Method and apparatus for heat treating metal castings

Details Method and apparatus for heat treating metal castings Method and apparatus for heat treating metal castings

B - Operations, Transporting

22

D

B22D 29/00 (2006.01) B22D 31/00 (2006.01)

Patent

CA 2103136

An improved method and apparatus for heat treating a metal casting having a sand core comprising a heat treating furnace (11), with fans (44) for directing a flow of air over the casting to dislodge the sand core. The dislodged sand falls into a trough (50) where it is collected and conveyed to a central collection bin (60) for reuse.

La présente invention vise une méthode améliorée de traitement thermique d'une pièce de fonte à noyau de sable. L'invention vise également l'appareil connexe qui comprend un four de traitement thermique (11) et des ventilateurs (44) servant à diriger l'air sur la pièce pour faire décoller le noyau de sable. Le noyau délogé tombe dans une goulotte (50) puis est acheminé vers un bac de récupération central (60).

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