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

Method for improving baking finish hardenability of AA6022 aluminum alloy sheet

A technology of aluminum alloy plate and paint hardening, which is applied in the field of aluminum alloy heat treatment, can solve the problems of low strength, achieve the effects of impact resistance, broad market prospect, and increase the stamping yield

Active Publication Date: 2009-04-15
CHINA ALUMINUM INT ENG CORP
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a method for improving the hardening properties of AA6022 aluminum alloy automotive sheet paint, which aims to effectively solve the current problems of low strength of AA6022 aluminum alloy automotive sheet after baking paint, so that the sheet can better meet Requirements for impact resistance of automotive panels

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
  • Method for improving baking finish hardenability of AA6022 aluminum alloy sheet
  • Method for improving baking finish hardenability of AA6022 aluminum alloy sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The alloy composition is 1.25% Si, 0.48% Mg, 0.02% Cu, 0.1% Mn, 0.12% Fe, 0.1% Cr, 0.25% Zn, 0.15% Ti, and the balance is Al AA6022 aluminum alloy ingot in terms of mass percentage, After homogenization treatment at 480°C×8h+550°C×12h in a circulating air furnace, head cutting, face milling, hot rolling and finally cold rolling to a 1mm thin plate; the thin plate is water quenched after solution treatment at 550°C×1h, room temperature After parking for 10 hours, conduct heat treatment at 75°C×8h in a circulating air furnace, and then perform tensile and cupping tests after parking at room temperature for 1 month. The simulated 175°C×30min baking paint heat treatment is carried out in an oil bath furnace of.

Embodiment 2

[0019] The alloy composition is 1.25% Si, 0.48% Mg, 0.02% Cu, 0.1% Mn, 0.12% Fe, 0.1% Cr, 0.25% Zn, 0.15% Ti, and the balance is Al AA6022 aluminum alloy ingot in terms of mass percentage, After homogenization treatment at 480°C×8h+550°C×12h in a circulating air furnace, head cutting, face milling, hot rolling and finally cold rolling to a thin plate of 1mm; the thin plate is water quenched after solution treatment at 550°C×1h, Immediately conduct heat treatment at 70°C x 30min in a circulating air furnace, and then perform tensile and cupping tests after parking at room temperature for 1 month. The simulated 175°C x 30min baking paint heat treatment is carried out in an oil bath furnace.

Embodiment 3

[0021] The alloy composition is 1.25% Si, 0.48% Mg, 0.02% Cu, 0.1% Mn, 0.12% Fe, 0.1% Cr, 0.25% Zn, 0.15% Ti, and the balance is Al AA6022 aluminum alloy ingot in terms of mass percentage, After homogenization treatment at 480°C×8h+550°C×12h in a circulating air furnace, head cutting, face milling, hot rolling and finally cold rolling to a 1mm thin plate; the thin plate is water quenched after solution treatment at 550°C×1h, room temperature After parking for 3 days, conduct heat treatment at 100°C×6h in a circulating air furnace, and then perform tensile and cupping tests after parking at room temperature for 1 month, simulating 175°C×30min baking paint heat treatment is carried out in an oil bath furnace of.

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

No PUM Login to View More

Abstract

The invention provides a method for improving the harden ability of baking paint of AA6022 aluminium alloy plates, which includes the following steps: after solid solution and water quenching, the AA6022 aluminium alloy plates are subjected to preheating treatment in a week with the preheating treatment temperature of 60 to 100 DEG C and preheating treatment time of 30 minutes to 12 hours. The preheat treatment process effectively improves the intensity of the alloy after the paint is baked and further develops the potential of age hardening of the aluminium alloy; simultaneously, the intensity of materials before stamping is lower, which is beneficial for stamping-forming and further causes automobile factories to broadly adopt the aluminium alloy plates to replace steel plates for producing body stamping parts of automobiles.

Description

technical field [0001] The invention relates to a preheating treatment process for improving the hardenability of baking paint of AA6022 aluminum alloy plate, belonging to the technical field of aluminum alloy heat treatment. Background technique [0002] Aluminum alloy materials have become the most ideal material for automobile lightweight due to their high specific strength, corrosion resistance, good impact resistance, easy surface coloring, good processing formability, and high recycling and regeneration properties. Since the 6xxx series aluminum alloys that can be strengthened by heat treatment have both good formability in the solid solution state (T4 state) and high strength in the paint state (T8 state), they are considered to be the most promising alloys for automobile body panels. [0003] In the production process of aluminum alloy automobile body panels, due to transportation and storage, the panels after solution treatment need to be placed at room temperature ...

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): C22F1/04
Inventor 纪艳丽郭富安钟皓潘琰峰
Owner CHINA ALUMINUM INT ENG CORP
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