Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method for producing ultra-wide aluminum alloy profiles for train freight car bodies beyond the capacity of equipment

A technology for aluminum alloy profiles and equipment capabilities, which is applied in the field of ultra-wide aluminum alloy profiles for train freight car bodies, can solve problems such as large increase in strength and large deformation resistance, and achieve improved mechanical properties, comprehensive performance, and beautiful gloss. Effect

Active Publication Date: 2016-04-13
SHANDONG YUHANG SPECIAL ALLOY EQUIP
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the fact that the main strengthening elements of 6061T6 aluminum alloy are few and the alloy is simple, during the high-temperature heating process, the main strengthening elements increase with the temperature, and the solid solubility increases significantly. The alloy has obvious quenching aging strengthening effect, and the quenching range is wide, which is suitable for online quenching. When a small amount of Cu is added to the alloy, the strength of the 6061 alloy is close to that of duralumin, and the strength increases greatly. It is produced on an extrusion machine with a diameter of 125MN, an extrusion cylinder diameter of 600mm or 90MN, and an extrusion cylinder diameter of 520mm. The deformation resistance is relatively large. For The ultra-wide aluminum alloy profiles for train freight car bodies are not suitable for the current method, therefore, there is an urgent need for a method for manufacturing ultra-wide aluminum alloy profiles for train freight car bodies

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
  • A method for producing ultra-wide aluminum alloy profiles for train freight car bodies beyond the capacity of equipment
  • A method for producing ultra-wide aluminum alloy profiles for train freight car bodies beyond the capacity of equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. Selection of extrusion machine, mold design, the traditional design is produced on a 125MN or 90MN extrusion machine, and the production of ultra-wide aluminum alloy profiles for train freight car bodies with a circumscribed circle diameter of 820.07mm;

[0024] 2. The cast aluminum alloy is a six-series aluminum alloy round ingot. The traditional ingot size is Φ600mm×4000mm. The No. 6 aluminum alloy round ingot is melted. The mass percentage of the elements in the aluminum alloy ingot used is 0.70% Si and Fe is 0.58%, Cu 0.33%, Mn 0.138%, Mg 1.12%, Cr 0.27%, Zn 0.18%, Ti 0.10%, single impurity ≤ 0.05%, total impurity ≤ 0.15%, the rest is Al; ingredients It is required to calculate ingredients, liquid slag removal and degassing during casting, and filtration is required during casting. The calculation of ingredients is based on the center line of step 2 to ensure that the composition of the ingot is controlled within the standard range; Slag removal, slag removal onc...

Embodiment 2

[0030] The difference between this embodiment and the specific embodiment 1 is that a 75MN extruder is used to design an ultra-wide aluminum alloy profile for a train freight car body by using an expansion die, and the straight profile is designed into a curved profile, and the diameter of the circumscribed circle is Ф460mm Extrusion cylinders produce ultra-wide aluminum alloy profiles for train and freight car bodies with a circumscribed circle diameter of 820.07mm, breaking the industry’s regulation that the diameter of the extrusion cylinder is 10-20% larger than the circumscribed circle diameter of the product. Other steps and parameters and specific implementation methods 1 same.

Embodiment 3

[0032]The difference between this embodiment and specific embodiment 1 is that the cast aluminum alloy ingot is a No. 6 aluminum alloy round ingot, and the mass percentages of the elements in the aluminum alloy ingot used are 0.72% for Si, 0.45% for Fe, and 0.45% for Cu. 0.33%, Mn 0.139%, Mg 1.12%, Cr 0.27%, Zn 0.15%, Ti 0.11%, single impurity ≤ 0.05%, total impurity ≤ 0.15%, the rest is Al;

[0033] Slag removal once after melting, once after refining in smelting furnace, once after refining in holding furnace; degassing once after refining in smelting furnace, once degassing after refining in holding furnace, and degassing by degasser after refining in holding furnace gas. The degree of refining meets the requirements of the first-level oxide film, there is no segregation of metal and non-metallic compounds, and the quality of the melt is guaranteed to be uniform. The wide aluminum alloy profile breaks suddenly due to structural defects, and other steps and parameters are t...

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
yield strengthaaaaaaaaaa
Login to View More

Abstract

A production method for producing super-wide aluminum alloy section bars for freight train bodies with ultra-equipment capacity comprises the steps of selecting an extruding machine and designing dies; casting aluminum alloy cast ingots; extruding the super-wide aluminum alloy section bars for the freight train bodies and performing online quenching; performing tension stretching and aging treatment on the super-wide aluminum alloy section bars for the freight train bodies; sampling and checking the super-wide aluminum alloy section bars for the freight train bodies; hardening and packaging the super-wide aluminum alloy section bars for the freight train bodies. The production method has the advantages that the super-wide aluminum alloy section bars for the freight train bodies are produced in an online quenching mode, production of oversized circumscribed circle diameter section bars is achieved by using small and medium sized extruding machines, performance indexes of products meets the national standard requirements, the labor productivity is improved, the cost is saved, the user goods ordering demands are met, and scale production of the super-wide aluminum alloy section bars for the freight train bodies is achieved.

Description

technical field [0001] The invention relates to a method for manufacturing an ultra-wide aluminum alloy section material for a train freight car body that exceeds the capacity of the equipment by using small and medium-sized extrusion equipment. Background technique [0002] With the rapid development of the train transportation industry, the train freight car body has higher and higher requirements for new technologies, new materials, new processes, and new products. The demand for ultra-wide aluminum alloy profiles for train freight car bodies is increasing. Ultra-wide aluminum alloy profiles for freight car bodies must have high strength, good plasticity, high specific strength, light weight, good corrosion resistance, no tendency to stress corrosion cracking, strong resistance to intergranular corrosion, good welding performance, and corrosion resistance in the welding zone. It has the advantages of stable performance, good machinability, easy processing, etc., and has g...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/08C22F1/047
Inventor 王呈刚张建忠许辉苏本显宋微胡哲
Owner SHANDONG YUHANG SPECIAL ALLOY EQUIP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com