Method of fastening mold shell with mold seat without risk of causing mold shell to crack

摘要

A method is designed to fasten a mold shell with a mold seat without causing the mold shell to crack. The method involves a first step in which a metal shell is formed on a model by electrocasting. The metal shell is then provided with at least one nut therewith by soldering through electrocasting. The metal shell is separated from the model and is then provided with a metal layer of a thickness by arc spraying, with the metal layer circumventing the nut. The mold seat is provided with at least one through hole. The mold shell is fastened with the mold seat by a bolt which is engaged with the nut via the through hole of the mold seat.