Sand box for sand casting

By designing a sand box for sand casting and adopting the technical means of two-way pouring and positioning parts, the problems of low efficiency and deformation in the casting of large-diameter castings were solved, the quality of castings and the utilization rate of molding sand were improved, and efficient production was achieved.

CN223382525UActive Publication Date: 2025-09-26YANTAI WINHERE AUTO PART MFG
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Patent Information

Application Number
CN202422822408.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-19
Publication Date
2025-09-26
Estimated Expiration
2034-11-19

AI Technical Summary

Technical Problem

When casting large-diameter castings, the existing technology has problems such as low casting efficiency, low product rate, long pouring time and casting deformation. Especially in stacked box casting, the partition sand core easily floats up, causing casting deformation, and the utilization rate of molding sand and molten iron is low.

Method used

A sand box for sand casting is designed, which includes a first sand box and a second sand box, and is provided with stacked sand cores. Through the design of pouring components such as a pouring cup, a straight runner and a cross runner, two-way pouring of molten iron is achieved to ensure the molding quality of the casting, and the positioning accuracy of the sand core is improved through positioning parts.

Benefits of technology

It improves the production quality and space utilization of large-diameter castings, reduces the waste of molding sand and molten iron, shortens the pouring time, and realizes efficient batch continuous pouring production.

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Abstract

The utility model relates to the technical field of casting and metallurgy, in particular to a sand box for sand mold casting, which comprises a first sand box, a second sand box and a pouring part, a plurality of stacked sand cores are arranged in the first sand box and the second sand box, the plurality of sand cores form a sand mold, and the pouring part is arranged in the sand mold. The pouring part comprises a pouring cup, a straight pouring gate and a plurality of bidirectional pouring cross pouring gates which are communicated in sequence, and casting molten iron passing through the pouring part is injected into the sand mold. According to the sand box for sand mold casting, the production quality of large-diameter castings is improved, the pouring time is greatly shortened, meanwhile, the utilization rate of the space in the sand box and molding sand is increased, and waste of the molding sand and molten iron is also avoided.
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