Cope with bore for gassing cores

摘要

A cope (13) for a core box (11) has a passage (24) for passing sand into a core box cavity (20) and a bore (30) for passing catalyst into the core box cavity (20) to harden a sand core formed therein. The bore (30) may extend from an exterior surface of the cope (13) to the cope passage (24). The cope may have structure for forming a seal with a sand injection tube following sand injection, such as a blow-up seal (43) or an O-ring (110). A method of producing cores in a core box includes the step of providing a cope (13), a drag (17), and a cavity (20) formed therebetween, the cope (13) having a passage (24) for receiving an injection tube (27) and a bore (30) for passing catalyst. Further steps include using the injection tube (27) to inject sand through the cope passage (24) into the cavity (20) and passing catalyst through the bore (30) in the cope into the cavity (20). A seal may be formed between the cope (13) and the injection tube (27) after sand injection.