MIDDLE STALK OF LOW PRESSURE DIE CASTING MACHINE FOR MAGNESIUM ALLOY AND LOW PRESSURE DIE CASTING MACHINE INCLUDING SAME

摘要

The present invention relates to a middle stalk of a low pressure die casting machine for a magnesium alloy and a low pressure die casting machine including the same. The present invention provides the middle stalk of the low pressure die casting machine connected to an inlet of a mold installed on the upper part of the mold, whereby a molten magnesium alloy is injected. The middle stalk of the low pressure die casting machine comprises: a middle stalk body; a mold connection unit provided on the upper part of the middle stalk body which has an injection space formed by penetrating the center thereof; a sleeve inserted in and combined with the mold connection unit; and a bushing placed on and combined with the sleeve, and coupled to the mold. According to the present invention, the middle stalk of the low pressure die casting machine for a magnesium alloy is provided to prevent clogging inside the middle stalk due to the molten magnesium alloy coagulated by heat loss caused by having the ceramic sleeve installed therein; to be prevented by being damaged whenever being coupled to the mold, since a cast iron bushing is installed on the upper part of the ceramic sleeve inside the stalk, thereby improving productivity; and have a protective gas injection unit therein to prevent oxidation of the molten magnesium alloy and remove clogging of the stalk caused by formation of an oxide.;COPYRIGHT KIPO 2014