Ultrahigh casting modeling method

Abstract

The invention discloses an ultrahigh casting modeling method, which belongs to the fields of casting processes and tools. The method comprises the following steps of: on a horizontal operating platform, stacking pressure bearing bricks on the ground by using frames of sand boxes as boundaries, wherein the brick stack has the height of 10 to 20cm; enclosing a cavity with the height of 10 to 20cm; placing an upper sand box on the pressure bearing bricks, wherein the periphery of the upper sand box is fixedly aligned with the periphery of the bricks; adding bottom sand according to the conventional process, putting a mold into the bottom sand and washing the sand; after the sand is molded, hoisting the upper sand box, and overturning to make the upper sand box assembled with a lower sand box, wherein the exposed edge of the upper sand box is 10 to 20cm; and inserting steel lining plates into the periphery of the upper sand box, wherein the height of the upper sand box is the same as thatof the exposed edge after the steel lining plates are inserted into the edge of the upper sand box. By the sand box modeling method, an ultrahigh casting can be processed by fully using the sand boxes with the height lower than that of the casting without re-purchase of the sand boxes; and due to the designs of the steel lining plates, the phenomenon of accidents caused by molten steel outflow due to cracks generated when sand, which is higher than a sand box side plate, in the upper sand box is impacted in the casting process can be prevented.

Description

technical field [0001] The invention relates to a method for making a model of an ultra-high casting, which belongs to the field of casting technology and tooling. Background technique [0002] The sand box is a rigid frame that forms part of the mold and holds and supports the sand mold. The sand box is composed of the lower two parts, and the combined height of the upper and lower sand boxes is greater than the height of the workpiece to be cast. In the conventional casting process, choosing a suitable sand box is the first step in casting. With the development of modern industry, the volume of castings is gradually increasing, and the height of the required sand box is also gradually increasing. The production process of enterprises It is necessary to purchase large-volume sand boxes to meet the process requirements of castings. When there is a lack of corresponding sand boxes, the processing operations cannot continue. The method of processing ultra-high castings on the...

AI Technical Summary

Problems solved by technology

In the conventional casting process, choosing a suitable sand box is the first step in casting. With the development of modern industry, the volume of castings is gradually increasing, and the height of the required sand box is also gradually increasing. The production process of enterprises It is necessary to purchase large-volume sand boxes to meet the process requirements of castings. When there is a lack of corresponding sand boxes, the processing operations cannot continue. The method of processing ultra-high castings on the basis of existing sand boxes will help enterprises control costs and increase Efficiency is a matter of urgency

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