Aluminum alloy section for rail traffic car body skirtboard and manufacturing method of aluminum alloy section

A technology of aluminum alloy profiles and rail transit, which is applied in the direction of manufacturing tools, metal extrusion control equipment, metal extrusion, etc., can solve the problems of many waste products, difficult size, large deformation, etc., to reduce manufacturing costs, reduce unnecessary The effect of pass rate and good mechanical properties

Inactive Publication Date: 2017-11-07
SHANDONG NANSHAN ALUMINUM +1
View PDF3 Cites 41 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shape of the existing rail transit car body skirt is relatively complex, hollow, thin and long (about 2m in length)
[0003] In the existing technology, the control range of each link in the extrusion process of aluminum alloy profiles for rail transit car body skirts is relatively wide, and the control of the heat treatment process is difficult, and the prepared aluminum alloy profiles are prone to defects such as distortion and deformation during the heat treatment process , has a great influence on the size and mechanical properties of the skirt plate, and cannot guaran

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Aluminum alloy section for rail traffic car body skirtboard and manufacturing method of aluminum alloy section
  • Aluminum alloy section for rail traffic car body skirtboard and manufacturing method of aluminum alloy section

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0057] Example 1

[0058] This embodiment provides an aluminum alloy profile for rail transit car body skirts, which is produced by the following manufacturing method:

[0059] a. Melting: Put the pure electrolytic aluminum liquid into the dump smelting furnace, add other alloying element components for smelting, the smelting temperature is 745 ℃, so that the raw materials are completely melted, and the aluminum alloy melt with uniform composition is obtained. The melt consists of the following alloying elements in weight fraction: Si: 0.57%, Fe: 0.10%, Cu: 0.13%, Mn: 0.18%, Mg: 0.58%, Cr: 0.11%, Zn: 0.08%, Ti :0.02%, Mn+Cr: 0.28%, other single elements ≤0.05%, total other impurity elements ≤0.15%, the balance is Al.

[0060] b. Refining treatment: transfer the above-mentioned melt to a holding furnace, and then adjust the temperature of the melt to 740°C for refining in the furnace: the volume ratio of the argon-chlorine mixed gas introduced is 75% for argon and 75% for chlorine 2...

Example Embodiment

[0072] Example 2

[0073] This embodiment provides an aluminum alloy profile for rail transit car body skirts. The manufacturing method of the aluminum alloy profile for rail transit car body skirts is substantially the same as the manufacturing method in Example 1, except that: this embodiment The melt and the subsequent cast rods are composed of the following alloying elements in weight fraction: Si: 0.65%, Fe: 0.20%, Cu: 0.15%, Mn: 0.23%, Mg: 0.68%, Cr :0.17%, Zn: 0.15%, Ti: 0.04%, Mn+Cr: 0.4%, other single elements ≤0.05%, total other impurity elements ≤0.15%, the balance is Al, and finally the rail transit car body skirt Aluminum alloy profiles for plates.

Example Embodiment

[0074] Example 3

[0075] This embodiment provides an aluminum alloy profile for rail transit car body skirts. The manufacturing method of the aluminum alloy profile for rail transit car body skirts is substantially the same as the manufacturing method in Example 1, except that: this embodiment The exit speed of the extruded profile used in the middle extrusion step is 2.4m / min, and finally an aluminum alloy profile for rail transit car body skirts is produced.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Tensile strengthaaaaaaaaaa
Strengthaaaaaaaaaa
Login to view more

Abstract

An aluminum alloy profile for a rail transit car body skirt and a manufacturing method thereof, relating to the technical field of preparation of aluminum alloy profiles, the manufacturing method of the aluminum alloy profile for a rail transit car body skirt includes the following steps: alloy smelting, refining treatment, Casting into rods, sawing of cast rods, homogenization annealing, surface peeling of cast rods, heating of cast rods, extrusion, online quenching, stretching straightening, sawing, surface shaping, artificial aging, the manufacturing method strictly controls the process steps Each parameter can be mass-produced with qualified wall dimensions and good mechanical properties, meeting the strength requirements of aluminum alloy materials for rail transit car body skirts; the prepared aluminum alloy profiles for rail transit car body skirts can be specially used The production of rail transit car body skirts can reduce the occurrence of unqualified rates, improve production efficiency, and reduce manufacturing costs.

Description

technical field [0001] The invention relates to the technical field of preparation of aluminum alloy profiles, and in particular to an aluminum alloy profile for a rail transit car body skirt and a manufacturing method thereof. Background technique [0002] Aluminum alloy materials have the characteristics of low density, good corrosion resistance, high strength and easy processing, and have been widely used in the production of aluminum alloy car bodies for rail vehicles. Rail transit car body skirt is mainly composed of welded aluminum alloy extruded profiles, which meets the requirements of strength while ensuring light weight and aesthetics. The shape of the existing rail transit car body skirt is relatively complex, hollow, thin and long (about 2m in length). [0003] In the existing technology, the control range of each link in the extrusion process of aluminum alloy profiles for rail transit car body skirts is relatively wide, and the control of the heat treatment li...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C22C21/02C22C21/08C22C1/02C22C1/06C22F1/043C22F1/047C22F1/05B21C31/00B21D3/12
CPCC22C21/02B21C31/00B21D3/12C22C1/026C22C1/06C22C21/08C22F1/002C22F1/043C22F1/047C22F1/05
Inventor 程仁策姜海涛马军星王岗赵海滨杨亚平史春丽阎昭辉张启东
Owner SHANDONG NANSHAN ALUMINUM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap