Aluminium alloy large broad width thin-wall rail car body floor profile extrusion technology

An aluminum alloy and profile technology, applied in metal extrusion, metal extrusion control equipment, metal processing equipment, etc., can solve the problems of a large number of splicing welds and poor surface quality, and reduce the number of welds and welding defects. , the effect of improving quality and production efficiency and reducing processing costs

Inactive Publication Date: 2020-04-28
CHINA ZHONGWANG
View PDF9 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, in order to solve the problems of poor surface quality and large number of spliced ​​welds in the extrusion production process of the above-mentioned rail car body floor profile, the present invention provides an aluminum alloy large-width thin-wall rail car body floor profile extrusion craft

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
  • Aluminium alloy large broad width thin-wall rail car body floor profile extrusion technology
  • Aluminium alloy large broad width thin-wall rail car body floor profile extrusion technology
  • Aluminium alloy large broad width thin-wall rail car body floor profile extrusion technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] Such as Figure 1~3The extrusion process of the aluminum alloy large and wide thin-walled rail car body floor profile comprises the following steps:

[0033] A. Ingredients: aluminum alloy ingots are made according to the following mass percentages:

[0034] element Si Fe Cu mn Mg Cr Zn Ti Zr Mn+Cr Al content 0.65 0.10 0.05 0.25 0.45 0.10 0.10 0.05 0.04 0.35 margin

[0035] Single impurity ≤ 0.05%, total impurity ≤ 0.15%;

[0036] B. Casting: Put the prepared aluminum alloy raw materials into the smelting furnace and evenly mix them to melt them into liquid aluminum alloys. The aluminum alloy is melted and cast into aluminum alloy cast rod, the diameter of the aluminum alloy cast rod is 765mm, and the length is 1530mm; during the refining process, Al-5Ti-B wire refining agent is added, and the online degassing adopts double rotors, and the flow rate of argon gas is 3.2~7.1m 3 / h, the flow rate of chlorine gas is 0~0.0...

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
Yield strengthaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Login to view more

Abstract

The invention belongs to the technical field of aluminium profile processing technology and relates to an aluminium alloy large broad width thin-wall rail car body floor profile extrusion technology.An aluminium alloy cast ingot comprises the following components in percentage by mass: 0.60-0.70% of Si, equal to or less than 0.25% of Fe, 0.03-0.08% of Cu, 0.20-0.30% of Mn, 0.45-0.55% of Mg, 0.10-0.20% of Cr, equal to or less than 0.10% of Zn, equal to or less than 0.05% of Ti, 0.30-0.50% of Mn+Cr, 0.03-0.05% of Zr, equal to or less than 0.05% of a single impurity, equal to or less than 0.15%of total amount of impurities, and the balance of Al. A thin-wall profile with the width being 1000 mm is produced through selecting reasonable alloy components and extruding equipment, innovating diedesign, optimizing die structure and controlling a key extruding process system, and the problems that the floor profile is non-uniform in flow rate and has waves and twisting are solved, so that thedimensional accuracy, the surface quality and the physical and chemical property of the profile can reach the standard of the technical protocol, and stable mass production of the large broad width thin-wall floor profile is realized.

Description

technical field [0001] The invention belongs to the technical field of aluminum profile processing technology, and relates to an aluminum alloy large-width thin-wall rail car body floor profile extrusion process. Background technique [0002] Light weight and high speed have become an important symbol of modern transportation. The use of aluminum alloy materials is an effective measure to reduce the weight of the car body. In order to adapt to the development, countries all over the world are vigorously developing and manufacturing structural parts for aluminum alloy car bodies. The development of high-quality ultra-thin and ultra-wide aluminum alloy component preparation technology plays a vital role in promoting the development of the transportation industry. [0003] The development of rail transit has put forward higher requirements for rail car body materials, and the car body structure design has begun to develop in the direction of weight reduction and weld reduction....

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): B21C23/02B21C31/00C22C21/02C22C1/03C22C1/06C22F1/043
CPCB21C23/02B21C31/00C22C1/026C22C1/03C22C1/06C22C21/02C22F1/002C22F1/043
Inventor 王睿李延军杨志勇王义斌王爽何金
Owner CHINA ZHONGWANG
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