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

Thermal treatment method for improving plasticity of aluminum alloy plate material

A heat treatment method and technology for aluminum alloy sheets, applied in the field of metal materials, can solve the problems of inability to meet the high-end use requirements of processing deformation requirements, low plasticity, etc., and achieve the effect of reducing the effect of solid solution strengthening, reducing costs, and shortening the process.

Active Publication Date: 2014-06-04
CHONGQING UNIV
View PDF2 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the 5052 aluminum alloy plate prepared by conventional processing technology has low plasticity and cannot meet the requirements of high-end use or subsequent processing and deformation requirements.

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
  • Thermal treatment method for improving plasticity of aluminum alloy plate material
  • Thermal treatment method for improving plasticity of aluminum alloy plate material
  • Thermal treatment method for improving plasticity of aluminum alloy plate material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: a kind of heat treatment method that improves the plasticity of aluminum alloy plate, this method comprises the following steps:

[0030] 1) Homogenization treatment: put the as-cast 5052 aluminum alloy in a heat treatment furnace at a temperature of 470°C, and perform homogenization treatment for 15 hours.

[0031] 2) Rolling: The homogenized aluminum alloy is rolled at room temperature, and the rolling deformation is 75%.

[0032] 3) Annealing treatment: the alloy was annealed at 250°C, kept for 4 hours, then taken out and air-cooled to room temperature. Comparing the annealed aluminum alloy with the directly rolled aluminum alloy without annealing treatment, the yield ratio decreased from 0.643 to 0.490, and the plasticity increased from 2.8% to 8.5%, which increased by 204%, and the plasticity improvement was more significant.

[0033] The metallographic photograph of the 5052 aluminum alloy processed through embodiment 1 is as follows figure 1 As sh...

Embodiment 2

[0034] Embodiment 2: The same aluminum alloy alloy raw material, aluminum alloy homogenization treatment process and rolling process as in embodiment 1 are used, and the process parameters are completely the same. The above-mentioned treated aluminum alloy was stabilized and annealed at 300° C., kept for 4 hours, and then taken out and air-cooled to room temperature. Comparing the annealed aluminum alloy with the directly rolled aluminum alloy without annealing treatment, the yield ratio decreased from 0.643 to 0.495, the plasticity increased from 2.8% to 23.4%, and the plasticity increased by 736%, and the plasticity improvement was more obvious.

[0035] The metallographic photograph of the 5052 aluminum alloy processed through embodiment 2 is as follows figure 1 Shown in Figure d. Comparing Figure d with Figures a, b, and c, it can be found that the distribution of precipitated phases becomes more uniform as the temperature increases.

Embodiment 3

[0036] Embodiment 3: The same aluminum alloy raw materials, aluminum alloy homogenization treatment process and rolling process as in embodiment 1 are used, and the process parameters are completely the same. The above-mentioned treated aluminum alloy was stabilized and annealed at 350° C., kept for 4 hours, and then taken out and air-cooled to room temperature. Comparing the annealed aluminum alloy with the directly rolled aluminum alloy without annealing treatment, the yield ratio is reduced from 0.643 to 0.388, the plasticity is increased from 2.8% to 25.1%, and the plasticity is increased by 796%. The plasticity improvement is very significant.

[0037] The metallographic photograph of the 5052 aluminum alloy processed through embodiment 3 is as follows figure 1 Shown in Figure e. It can be seen from the figure e that the precipitated second phase not only increases in content but also has a more uniform distribution.

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 ratioaaaaaaaaaa
yield ratioaaaaaaaaaa
Login to View More

Abstract

The invention provides a thermal treatment method for improving the plasticity of an aluminum alloy plate material. The method mainly comprises the following steps: keeping the temperature of a 5052 aluminum alloy cast ingot in a cast state for 10-25 hours at the temperature of 400 DEG C to 500 DEG C; cooling to room temperature through water quenching; subsequently rolling the aluminum alloy treated through the abovementioned technical scheme at room temperature to realize different deformation rates within 15%-90%; afterwards, annealing the rolled aluminum alloy at the temperature of 150 DEG C to 400 DEG C; keeping the temperature for 2-10 hours; and air-cooling to room temperature. The aluminum alloy treated through the thermal treatment process disclosed by the invention is high in formability and remarkable in effect, can provide important foundation for subsequently obtaining a high-quality aluminum alloy plate material and is in favor of fully exploiting the usability potential of the material. In addition, processing equipment used in the thermal treatment method is universal equipment which is low in cost, easy to operate and easy to implement industrially.

Description

technical field [0001] The invention belongs to the technical field of metal materials, and in particular relates to a heat treatment process for improving the plasticity of aluminum alloy plates. [0002] Background technique [0003] The new century puts forward requirements for energy saving, environmental protection and safety, and the development of the aluminum industry is one of the important ways to solve the three major problems. Because: aluminum is a renewable resource, the earth’s crust is rich in aluminum, and waste aluminum can be recycled and remelted; aluminum is an energy-saving and energy-storage material, and its energy-saving and energy-storage function is greater than steel; aluminum is aerospace and modern Key materials for lightweight and high-speed transportation. In industrial production, the application of aluminum and its alloys is second only to steel and ranks first among non-ferrous metals. Its biggest features are light weight, high specific ...

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): C22F1/04
Inventor 陈先华潘复生王博
Owner CHONGQING UNIV
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