Runner device and mold filling method of centrifugal casting thin-wall cartridge receiver casting

Abstract

The invention relates to a runner device and mold filling method of a centrifugal casting thin-wall cartridge receiver casting. The runner device comprises a disc-shaped transverse runner, a straightrunner vertically adheres to the transverse runner, and an annular inner runner and an annular outer runner further adhere to the transverse runner; the inner runner and the outer runner surround thearea beyond the straight runner; and the inner runner and the outer runner are connected through a plurality of lap joint runners. The mold filling method comprises the steps that after the runner device is prepared, molten metal is poured through the straight runner, the inner runner and the outer runner, so that the molten metal reaches the joint of the inner runner and the transverse runner atthe same time and is gathered. By means of the technical scheme, the cross section area of the lap joint runners is limited, so that the pressure head flowing through the molten metal is increased, and a foundation is laid for enabling the molten metal to reach the junction of the inner runner and the transverse runner at the same time and to be gathered, the purpose of avoiding cold separation defects of the casting is achieved, welding repairing and repairing processes for the casting in the later period are avoided, the casting technology is simplified, and the product quality is improved.

Description

technical field [0001] The invention relates to the technical field of investment casting, in particular to a sprue device for centrifugally pouring thin-wall casing castings and a filling method thereof. Background technique [0002] In recent years, the machinery and equipment manufacturing industry has developed rapidly. People have designed and manufactured a variety of machinery and equipment to facilitate people's production, life and other activities. Machinery and equipment are composed of parts of different shapes, sizes and functions. , These various mechanical parts generally need to be formed by different processing and manufacturing methods. Casting molding is an important process method for mechanical manufacturing and processing at present. Metal materials are generally used to make molds, and then casting raw materials are cast into the molds. With the technology With the development of the development, people's requirements for the manufacturing precision of...

AI Technical Summary

Problems solved by technology

This scheme realizes rapid mold filling, but both the inner ring and the outer ring of the casting have molten metal entering, and a confluence is formed at the thin-walled places such as the support plate and the inner ring. Cold barrier defects cause a lot of repair welding, which affects the delivery quality of castings

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