The pouring system and pouring method of thin-walled castings

Abstract

The invention relates to a pouring system of a thin-wall casting. The pouring system comprises a cavity, a sprue, a cross gate, an ingate and an air outlet, wherein the sprue is communicated with the cross gate which is communicated with the ingate, the cavity is communicated with the ingate, the air outlet is communicated with the cavity, the cross gate is divided into an upper cross gate and a lower cross gate, the upper cross gate is communicated with the sprue, the lower cross gate is communicated with the ingate, the upper cross gate and the lower cross gate are communicated by an interception surface, and a scum riser is arranged at the connecting position of the upper cross gate and the interception surface. The invention relates to a pouring method of the thin-wall casting. The pouring method is characterized in that stream inoculation is adopted, the pouring temperature is 1350-1400 DEG C and the pouring speed is 270-320kg / min. Compared with the prior art, the pouring system has the characteristics of high finished rate of castings, high yield and low production cost under a condition that the quality of the casting is ensured.

Description

technical field [0001] The invention belongs to the technical field of casting, and in particular relates to a pouring system and a pouring method for thin-walled castings. Background technique [0002] At present, in the prior art, when pouring small thin-walled castings (especially thin-walled castings with ring structure), the production process is unstable and defects are easily generated, resulting in serious surface primary slag, secondary slag, and internal shrinkage, resulting in a large number of scrapping. The finished product rate and output rate of castings are lower, and the production cost is higher. Contents of the invention [0003] Aiming at the above problems, the present invention provides a pouring system and pouring method for thin-walled castings that can reduce pouring defects, improve finished products and yields, and greatly reduce production costs. [0004] The technical solution used by the present invention to solve the above problems is to pro...

AI Technical Summary

Problems solved by technology

[0002] At present, in the prior art, when pouring small thin-walled castings (especially thin-walled castings with ring structure), the production process is unstable and defects are easily generated, resulting in serious surface primary slag, secondary slag, and internal shrinkage, resulting in a large number of scrapping. The yield and output rate of castings are lower, and the production cost is higher

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