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

Extruded member of aluminum alloy excelling in flexural crushing performance and corrosion resistance and method for production thereof

A technology for extruded material and aluminum alloy, which is applied in the field of Al-Mg-Si series aluminum alloy extrusion material and its manufacturing field, can solve the problems such as the limitation of improving the bending crushing property, and improve the bending crushing property and corrosion resistance. , The effect of excellent corrosion resistance

Active Publication Date: 2009-09-30
KOBE STEEL LTD
View PDF7 Cites 58 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even the above-mentioned relatively high-strength fibrous structure has a large limit in the improvement of bending crushability corresponding thereto.

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
  • Extruded member of aluminum alloy excelling in flexural crushing performance and corrosion resistance and method for production thereof
  • Extruded member of aluminum alloy excelling in flexural crushing performance and corrosion resistance and method for production thereof
  • Extruded member of aluminum alloy excelling in flexural crushing performance and corrosion resistance and method for production thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0115] Next, examples of the present invention will be described. In the composition of each component shown in Table 1, a 6000-series aluminum alloy extruded material with Japanese cross-section was produced under the conditions shown in Table 2, and as shown in Table 2, the structure of the extruded material was investigated, and its characteristics were investigated ( Mechanical properties, bending crush resistance, corrosion resistance). In addition, in each example in Table 1 except Comparative Example 5, the contents of Mg and Si all satisfy the preferred relationship of Mg(%)≥1.73×Si(%)-0.4 or Mg(%)≥1.73×Si(%)-0.2 .

[0116] More specifically, the extruded material was produced by solution casting various billets of aluminum alloys having the compositions shown in Table 1. After the homogenization heat treatment was performed at each temperature shown in Table 2, this billet was once cooled to room temperature at the average cooling rate (° C. / hr) shown in Table 2. A...

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
directional tensile yield strengthaaaaaaaaaa
directional tensile yield strengthaaaaaaaaaa
elongationaaaaaaaaaa
Login to View More

Abstract

An extruded member of Al-Mg-Si aluminum alloy specially composed of Mg, Si, Fe, Cu, Zn, Ti, etc. which has the equiaxed re-crystallized grain structure in which intergranular precipitates 1 mum or lager are separate from one another at large average intervals and there are many cube orientations over the entire thickness region thereof so that it excels in both flexural crushing performance and corrosion resistance. The extruded member is suitable for use as automotive body reinforcement members which need outstanding lateral crushing performance under severe collision conditions as well as good corrosion resistance.

Description

technical field [0001] The present invention relates to an Al—Mg—Si based aluminum alloy extruded material excellent in bending crushability and corrosion resistance and a method for producing the same (hereinafter, aluminum is also simply referred to as Al). In addition, the aluminum alloy extruded material referred to in the present invention refers to an extruded material after hot extrusion, but also includes a member assembled as an automobile body reinforcement (energy absorbing member) described later. Hereinafter, the Al-Mg-Si system is also referred to as the 6000 system. Background technique [0002] In order to use 6000-series aluminum alloy extrusions as reinforcements, there have been proposals for improving the transverse compressive resistance (cross-sectional crushing deformation) as reinforcements and extrusion for improving the bending workability of reinforcements. material organization. [0003] For example, the proposals include: Homogenize the 6000 se...

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 Applications(China)
IPC IPC(8): C22C21/02C22C21/08C22F1/043C22F1/047C21D8/00
CPCC22F1/047C22C21/06
Inventor 森田启二吉原伸二中井学安永繁信
Owner KOBE STEEL LTD
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