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Lightweight manufacturing method for train body of railway train

A manufacturing method and technology for rail trains, which are applied to railway car bodies, railway car body components, climate sustainability, etc., can solve the problems of heavy car body weight and energy consumption, and achieve the effects of improving molding quality and manufacturing efficiency.

Inactive Publication Date: 2017-06-23
ANHUI YUANJIA RAILWAY VEHICLE EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing rail trains are heavy, and will undoubtedly cons

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] S1: Construction of the car body skeleton mold. According to the design drawing of the train car body, according to the dimensions marked on the design drawing, the car body skeleton mold of the whole vehicle is manufactured, and the pre-production test is carried out on the completed car body skeleton mold. Metal aluminum at least The car body frame model is used for production test 3 times, and the size of the car body frame after forming is measured, and the measurement data is recorded. The final value is compared with the design size of the design drawing to ensure the accuracy of the surveying results and the measurement error. No more than 3 / 1000 of the design size of the design drawing;

[0021] S2: Lightweight material selection and pretreatment. Magnesium alloy is selected as the raw material for the car body frame. First, foreign matter on the surface of the magnesium alloy is cleaned, including oil stains, water stains, and dust, and then the surface of the m...

Embodiment 2

[0032] S1: Construction of the car body skeleton mold. According to the design drawing of the train car body, according to the dimensions marked on the design drawing, the car body skeleton mold of the whole vehicle is manufactured, and the pre-production test is carried out on the completed car body skeleton mold. Metal aluminum at least The car body frame model is used for production test 3 times, and the size of the car body frame after forming is measured, and the measurement data is recorded. The final value is compared with the design size of the design drawing to ensure the accuracy of the surveying results and the measurement error. No more than 3 / 1000 of the design size of the design drawing;

[0033] S2: Lightweight material selection and pretreatment. Magnesium alloy is selected as the raw material for the car body frame. First, foreign matter on the surface of the magnesium alloy is cleaned, including oil stains, water stains, and dust, and then the surface of the m...

Embodiment 3

[0044] S1: Construction of the car body skeleton mold. According to the design drawing of the train car body, according to the dimensions marked on the design drawing, the car body skeleton mold of the whole vehicle is manufactured, and the pre-production test is carried out on the completed car body skeleton mold. Metal aluminum at least The car body frame model is used for production test 3 times, and the size of the car body frame after forming is measured, and the measurement data is recorded. The final value is compared with the design size of the design drawing to ensure the accuracy of the surveying results and the measurement error. No more than 3 / 1000 of the design size of the design drawing;

[0045] S2: Lightweight material selection and pretreatment. Magnesium alloy is selected as the raw material for the car body frame. First, foreign matter on the surface of the magnesium alloy is cleaned, including oil stains, water stains, and dust, and then the surface of the m...

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PUM

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Abstract

The invention discloses a lightweight manufacturing method for a train body of a railway train. The lightweight manufacturing method for the train body of the railway train comprises the following specific steps that S1, a train body skeleton mould is constructed; S2, lightweight materials are selected and pretreated; S3, the lightweight materials are subjected to heat treatment; S4, a train body skeleton model is manufactured; S5, a lightweight train body skeleton is subjected to surface treatment; and S6, assembly and inspection and acceptance are conducted. The integrated magnesium alloy train body is manufactured through the mould, so that the manufacturing efficiency of the train body is greatly improved. By mean of a vacuum pumping device, a cavity of the train body skeleton mould forms negative pressure vacuum, and injecting of magnesium alloy melted liquid is facilitated. Bubbles in the magnesium alloy melted liquid can be made to be crushed, and the forming quality of the train body skeleton model is improved.

Description

technical field [0001] The invention belongs to the technical field of lightweight manufacturing methods for car bodies, and in particular relates to a lightweight manufacturing method for rail train car bodies. Background technique [0002] Lightweight rail transportation equipment is one of the elements of high-speed. New materials, new designs, and new manufacturing technologies are the main ways to reduce the weight of rail trains. The application of composite materials, new aluminum alloys, and high-strength magnesium alloys in the manufacture of rail train equipment is a major challenge in all aspects of design, materials, manufacturing technology, safety evaluation methods, and LCA analysis. [0003] The weight of the existing rail train car body is large, and it will undoubtedly consume more energy in the process of frequent starting and stopping. However, magnesium alloy, the most lightweight new material, is rarely used in rail transportation equipment. From the ...

Claims

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Application Information

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IPC IPC(8): B23P15/00B61D17/04
CPCB23P15/00B61D17/041Y02T30/00
Inventor 刘海强高恒勇邢宪峰祝文林
Owner ANHUI YUANJIA RAILWAY VEHICLE EQUIP