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

A technology for sand-coated iron molds and sand boxes is applied in the field of improving the deformation of sand boxes of iron mold-coated axles. and good thermal fatigue resistance

CN114101599APending Publication Date: 2022-03-01西峡县众德汽车部件有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2022-03-01

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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.
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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 ...

Examples

Embodiment Construction

[0019] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings. Such as Figure 1-6 Shown: an iron mold sand-covered axle sand box, including an upper sand box 1 and a lower sand box 2, and the middle parts of the upper sand box 1 and the lower sand box 2 are respectively equipped with a matched half car The bridge cavity 3, the axle cavity 3 in the middle of the upper sand box 1 and the lower sand box 2 are evenly distributed with corresponding sand injection ports 4, and the upper sand box 1 and the lower sand box 2 are equipped with vehicle The edge of the bridge cavity 3 is provided with a symmetrical sealing area 5, and one side of the axle cavity 3 in the upper sand box 1 and the lower sand box 2 is provided with a symmetrical pouring system 6. The pouring system 6 in the box 1 and the lower sand box 2 is connected with the axle cavity 3, and the other side of the axle cavity 3 in the u...