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High-strength aluminum alloy section bar for battery tray of novel energy vehicle and preparation method for high-strength aluminum alloy section bar

A technology for new energy vehicles and aluminum alloy profiles, which is applied in the field of high-strength aluminum alloy profiles for new energy vehicle battery trays and its preparation. It can solve problems affecting the quality of new energy vehicles, low strength of aluminum alloy profiles, and short service life. The performance deviation is small, the product quality is improved, and the effect of improving quality

Inactive Publication Date: 2019-06-28
JIANGYIN EAST CHINA ALUMINUM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a production process leads to the production of aluminum alloy profiles with low strength, poor weldability, and short service life, which affects the overall quality of new energy vehicles.

Method used

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  • High-strength aluminum alloy section bar for battery tray of novel energy vehicle and preparation method for high-strength aluminum alloy section bar
  • High-strength aluminum alloy section bar for battery tray of novel energy vehicle and preparation method for high-strength aluminum alloy section bar

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Effect test

Embodiment 1

[0028] The invention relates to a high-strength aluminum alloy profile for a new energy vehicle battery tray. The chemical composition of the aluminum alloy is Mg: 0.95%, Si: 0.70%, Cu: 0.22%, Mn: 0.08%, Cr: 0.08%. Ti: 0.008%, Fe: 0%, Zn: 0%, Zr: 0.02%, and the balance is Al. The main preparation process of this aluminum alloy profile is as follows:

[0029] The main production process includes: casting - homogenization - cooling - extrusion - stretching - aging, the specific operations are as follows:

[0030] (1) Melting and casting: Add the prepared raw materials into the melting furnace for melting according to the process requirements, and effectively remove the impurities and gases in the melt by means of degassing and slag removal refining, and pass the smelted molten aluminum through the deep well casting system Cooling and casting into aluminum alloy ingots;

[0031] (2) Homogenization: place the aluminum alloy ingot at 568°C for high-temperature homogenization treat...

Embodiment 2

[0037] The invention relates to a high-strength aluminum alloy profile for a new energy vehicle battery tray. The chemical composition of the aluminum alloy is Mg: 1.02%, Si: 0.72%, Cu: 0.25%, Mn: 0.11%, Cr: 0.9%, Ti: 0.010%, Fe: 0.08%, Zn: 0.024%, Zr: 0.035%, and the balance is Al. The main preparation process of this aluminum alloy profile is as follows:

[0038] The main production process includes: casting - homogenization - cooling - extrusion - stretching - aging, the specific operations are as follows:

[0039] (1) Melting and casting: Add the prepared raw materials into the melting furnace for melting according to the process requirements, and effectively remove the impurities and gases in the melt by means of degassing and slag removal refining, and pass the smelted molten aluminum through the deep well casting system Cooling and casting into aluminum alloy ingots;

[0040] (2) Homogenization: place the aluminum alloy ingot at 572°C for high-temperature homogenizatio...

Embodiment 3

[0046] The invention relates to a high-strength aluminum alloy profile for a new energy automobile battery tray. The chemical composition of the aluminum alloy is Mg: 1.06%, Si: 0.75%, Cu: 0.30%, Mn: 0.13%, Cr: 0.11%. Ti: 0.012%, Fe: 0.18%, Zn: 0.05%, Zr: 0.05%, and the balance is Al. The main preparation process of this aluminum alloy profile is as follows:

[0047] The main production process includes: casting - homogenization - cooling - extrusion - stretching - aging, the specific operations are as follows:

[0048] (1) Melting and casting: Add the prepared raw materials into the melting furnace for melting according to the process requirements, and effectively remove the impurities and gases in the melt by means of degassing and slag removal refining, and pass the smelted molten aluminum through the deep well casting system Cooling and casting into aluminum alloy ingots;

[0049] (2) Homogenization: place the aluminum alloy ingot at 574°C for high-temperature homogenizat...

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Abstract

The invention relates to a high-strength aluminum alloy section bar for a battery tray of a novel energy vehicle and a preparation method for the high-strength aluminum alloy section bar. Ingredient components are improved, and a gradient heating process is adopted for gradually reducing the temperature of a heated aluminum bar before extrusion from front to rear in the axial direction, so that temperature gradient is formed, and equal-temperature extrusion is realized; and the heated and processed product is uniform in core surface temperature, is bright in surface color and luster, and is small in mechanical performance deviation. The aluminum alloy section bar prepared by the preparation method has tensile strength of 310 MPa or higher, has yield strength of 270 MPa or higher, has elongation of 11% or higher, and greatly improves the product quality, so that the integral quality of the novel energy vehicle is improved.

Description

technical field [0001] The invention relates to a high-strength aluminum alloy profile for a new energy automobile battery tray and a preparation method thereof, belonging to the technical field of profile processing. Background technique [0002] In order to meet the huge challenges of energy and environmental issues, the current global automotive industry is striving to meet the increasingly stringent energy-saving and emission-reduction regulations to improve energy utilization and reduce environmental pollution from vehicles. Therefore, new energy vehicles are increasingly becoming the direction of future automotive industry development. The difference between new energy vehicles and traditional vehicles is that new energy vehicles use batteries as power to drive the car, which is limited by the weight of the power battery, the mileage of the power battery, and the high pressure of the vehicle's energy-saving and emission-reduction policies. In fact, the lightweight of ...

Claims

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Application Information

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IPC IPC(8): C22C21/08C22C1/02C22F1/047
Inventor 徐友才
Owner JIANGYIN EAST CHINA ALUMINUM TECH
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