Method for improving deformation of swage sand-coated axle sand box

Abstract

The iron mold sand-coated axle sand box comprises an upper sand box body and a lower sand box body, the middle portions in the upper sand box body and the lower sand box body are each provided with a half axle cavity which is matched with the middle portion in the upper sand box body, and corresponding sand shooting openings are evenly distributed in the axle cavities in the middle portions in the upper sand box body and the lower sand box body. Symmetrical sealing areas are formed in the edges of the axle cavities in the upper sand box and the lower sand box, symmetrical pouring systems are arranged on one sides of the axle cavities in the upper sand box and the lower sand box, and the pouring systems in the upper sand box and the lower sand box are communicated with the axle cavities; and symmetrical positioning pin sleeves are arranged on the other sides of the axle cavities in the upper sand box and the lower sand box. The sand box is simple in structure and low in cost, the phenomenon that the two ends in the length direction are deformed and upwarped in the heated state, so that normal production is affected is effectively avoided, the rejection rate caused by deformation of the sand box is reduced, and the product yield is increased.

Description

technical field [0001] The invention belongs to the technical field of casting, and in particular relates to a method for improving the deformation of an iron mold sand-covered axle sand box. Background technique [0002] The integrated road tractor axle produced by the iron mold sand-coated axle line, the half shaft part of this product is integrally cast with the middle section of the axle, and the overall length reaches 2110mm. Therefore, the length of the sand-covered iron mold sandbox for producing this product reaches 2400mm, and it is easily deformed under the heated state. However, the prior art method is: 1. Use a sandbox with an approximate rectangular shape; 2. The liquefied gas nozzle of the baking station is The distribution position is dislocated laterally, but the uneven heating position of the sand box still occurs. Contents of the invention [0003] The object of the present invention is to overcome the above disadvantages, thereby providing an iron mold ...

AI Technical Summary

Problems solved by technology

Therefore, the length of the sand-covered iron mold sandbox for producing this product reaches 2400mm, and it is easily deformed under the heated state. However, the prior art method is: 1. Use a sandbox with an approximate rectangular shape; 2. The liquefied gas nozzle of the baking station is The position of the lateral dislocation distribution, but the uneven heating position of the sand box still occurs

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