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Method for casting end cap of non-transmission end of traction motor on subway locomotive

A technology for traction motors and locomotives, which is applied to casting molding equipment, casting molds, and casting mold components. It can solve the problems of high labor intensity for workers, non-dense internal structure, and large amount of self-setting resin, so as to save time and manpower. The effect of eliminating internal shrinkage and reducing the amount of resin sand

Inactive Publication Date: 2015-12-02
侯马市晋烽机械铸造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process has the following defects in the process of preparation: due to the slow cooling of molten iron in the no-hardening sand process, shrinkage porosity, shrinkage cavities, and cracks are generated inside the casting, and the quality is unstable; the cooling speed of the casting is slow, the internal structure is not compact, and the spheroidization level Low (level 3), the material is unstable; the appearance of the casting is rough and poor; the machining allowance of the casting is large, the material is wasted, and the machining cost is high; the production process is complicated, the labor intensity of the workers is high, and the production efficiency is low; Large dosage, resulting in high production cost

Method used

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  • Method for casting end cap of non-transmission end of traction motor on subway locomotive
  • Method for casting end cap of non-transmission end of traction motor on subway locomotive
  • Method for casting end cap of non-transmission end of traction motor on subway locomotive

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Experimental program
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Effect test

Embodiment 1

[0036] A casting method for the non-transmission end cover of the traction motor on a subway locomotive. The casting method adopts an iron mold sand-covering process for casting. The specific steps are as follows: (1) Design a set of non-transmission end cover shape of the traction motor on the subway locomotive The completely consistent model is used as a master mold, and the master mold includes a tooling mold for designing and manufacturing the non-drive end cover of the traction motor on the subway locomotive, a pouring system, a heating plate and a base. Such as figure 2 , Figure 8 , Figure 9 As shown, the upper mold plate 3 is provided with a non-drive end cover upper mold 1, and the non-drive end cover upper mold 1 is provided with a cavity for the external structure of the non-drive end cover. Such as image 3 , Figure 10 , Figure 11 As shown, the lower mold plate 4 is provided with a non-drive end cover lower die 2, and the non-drive end cover lower die 2 is...

Embodiment 2

[0039] A casting method for the non-transmission end cover of the traction motor on a subway locomotive. The casting method adopts an iron mold sand-covering process for casting. The specific steps are as follows: (1) Design a set of non-transmission end cover shape of the traction motor on the subway locomotive The completely consistent model is used as a master mold, and the master mold includes a tooling mold for designing and manufacturing the non-drive end cover of the traction motor on the subway locomotive, a pouring system, a heating plate and a base. Such as figure 2 , Figure 8 , Figure 9 As shown, the upper mold plate 3 is provided with a non-drive end cover upper mold 1, and the non-drive end cover upper mold 1 is provided with a cavity for the external structure of the non-drive end cover. Such as image 3 , Figure 10 , Figure 11 As shown, the lower mold plate 4 is provided with a non-drive end cover lower die 2, and the non-drive end cover lower die 2 is...

Embodiment 3

[0042] A casting method for the non-transmission end cover of the traction motor on a subway locomotive. The casting method adopts an iron mold sand-covering process for casting. The specific steps are as follows: (1) Design a set of non-transmission end cover shape of the traction motor on the subway locomotive The completely consistent model is used as a master mold, and the master mold includes a tooling mold for designing and manufacturing the non-drive end cover of the traction motor on the subway locomotive, a pouring system, a heating plate and a base. Such as figure 2 , Figure 8 , Figure 9 As shown, the upper mold plate 3 is provided with a non-drive end cover upper mold 1, and the non-drive end cover upper mold 1 is provided with a cavity for the external structure of the non-drive end cover. Such as image 3 , Figure 10 , Figure 11 As shown, the lower mold plate 4 is provided with a non-drive end cover lower die 2, and the non-drive end cover lower die 2 is...

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Abstract

The invention relates to a method for casting an end cap of a non-transmission end of a traction motor on a subway locomotive. According to the method, a sand faced permanent iron molding technology is adopted. Through the sand faced permanent iron molding technology, a cavity which is in the shape of a complete end cap of the non-transmission end is obtained, and four cores are fed to directly cast a part of the end cap of the non-transmission end, appearance and inner quality of castings are improved effectively, scrappage of the castings is reduced, weight of the castings is reduced by 16%, production efficiency is improved greatly, and a large amount of time and cost of labor and equipment are saved. By the method, the cost is reduced by 28%. Moreover, the method is simple and practical, obvious in economic benefit, wide in market prospect and suitable for most of enterprises.

Description

technical field [0001] The invention belongs to the field of casting, and in particular relates to a method for casting a traction electric non-transmission end cover on a subway locomotive by adopting an iron mold sand-covering process. Background technique [0002] In the existing industrial production, self-hardening sand molding technology is used to produce transmission end cover castings. The process has the following defects in the process of preparation: due to the slow cooling of molten iron in the no-hardening sand process, shrinkage porosity, shrinkage cavities, and cracks are generated inside the casting, and the quality is unstable; the cooling speed of the casting is slow, the internal structure is not compact, and the spheroidization level Low (level 3), the material is unstable; the appearance of the casting is rough and poor; the machining allowance of the casting is large, the material is wasted, and the machining cost is high; the production process is com...

Claims

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Application Information

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IPC IPC(8): B22C9/22B22C9/06
Inventor 温文林刘春晖冯奇宏杨永杰张永芳许沛沃
Owner 侯马市晋烽机械铸造有限公司
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