A low-pressure casting device and method for a GIS large-size tank body composite mold

Abstract

The application belongs to the technical field of low-pressure casting and specifically relates to a GIS large-size tank body composite mold low-pressure casting device and method, wherein the GIS large-size tank body is connected by three cylindrical tank bodies, each cylindrical tank body is provided with a plurality of bosses on two sides, the top, bottom and end face of each cylindrical tank body are designed with flanges according to requirements, the rear end of the tank body has a semispherical part, and part of the inside of the tank body is formed by an inner cavity sand core, on the outer surface of the tank body, a composite forming mode of a metal outer mold system, an outer mold sand type assembly and an outer mold metal movable insert assembly is adopted, the metal mold forming surface accounts for 70%, the surface precision of the casting is improved, internal defects are effectively controlled, the production efficiency and product qualification rate are improved, and the production cost is reduced.

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