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A kind of processing method of expired aluminum plate

A processing method and technology of aluminum plate, applied in the field of aluminum alloy heat treatment, can solve the problems of increasing the material cost and material waste of the main engine plant

Active Publication Date: 2021-02-09
GUANGZHOU AUTOMOBILE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, for the 6XXX series aluminum plates that have been shipped to the OEM and have not yet been used, the usual practice is to recycle, smelt and remanufacture the expired 6XXX series aluminum plates as waste by the material supplier, resulting in Serious waste of materials, which greatly increases the material cost of the OEM

Method used

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  • A kind of processing method of expired aluminum plate
  • A kind of processing method of expired aluminum plate
  • A kind of processing method of expired aluminum plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A method for processing expired aluminum plates provided in Embodiment 1 of the present invention includes:

[0039] Place the expired aluminum plate in an induction heating furnace, heat it to 225°C at a heating rate of 10°C / s, and keep it warm for 2 minutes;

[0040] Take out the heat-treated aluminum plate from the induction heating furnace within 10s, and cool the heat-treated aluminum plate with strong wind;

[0041] After the heat-treated aluminum plate is cooled by strong wind, the stamping of the cooled aluminum plate is completed within 0 hours.

[0042] Among them, after the heat-treated aluminum plate is cooled by strong wind, the stamping of the cooled aluminum plate is completed within 0 hours. Specifically, after the heat-treated aluminum plate is subjected to strong wind cooling, the stamping of the cooled aluminum plate is completed immediately.

Embodiment 2

[0044] A method for processing an expired aluminum plate provided in Embodiment 2 of the present invention includes:

[0045] Place the expired aluminum plate in an induction heating furnace, heat it to 225°C at a heating rate of 10°C / s, and keep it warm for 2 minutes;

[0046] Take out the heat-treated aluminum plate from the induction heating furnace within 10s, and cool the heat-treated aluminum plate with strong wind;

[0047] After the heat-treated aluminum plate is cooled by strong wind, the stamping of the cooled aluminum plate is completed within 8 hours.

Embodiment 3

[0049] A processing method for an expired aluminum plate provided in Embodiment 3 of the present invention includes:

[0050] Place the expired aluminum plate in an induction heating furnace, heat it to 225°C at a heating rate of 10°C / s, and keep it warm for 2 minutes;

[0051]Take out the heat-treated aluminum plate from the induction heating furnace within 10s, and cool the heat-treated aluminum plate with strong wind;

[0052] After the heat-treated aluminum plate is cooled by strong wind, the stamping of the cooled aluminum plate is completed within 24 hours.

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Abstract

The invention relates to the technical field of aluminum alloy heat treatment, and discloses a processing method for an expired aluminum plate. First, the expired aluminum plate is placed in a heating device and heated to 200°C-250°C at a heating rate of 5°C / s-20°C / s , keep warm for 0.5min-3min; then, take the heat-treated aluminum plate out of the heating device within 10s, and cool the heat-treated aluminum plate with strong wind; finally, after the heat-treated aluminum plate is cooled with strong wind, complete within 2 days Stamping of cooled aluminum plate. The processing method of the expired aluminum plate heats the expired aluminum plate and cools it with strong wind, and then completes the stamping and forming of the aluminum plate in time to improve the yield strength of the expired aluminum plate in the delivery state and the yield strength after coating and baking, so that the expired aluminum plate The mechanical properties meet the requirements of the OEM again, so as to avoid the scrapping of expired aluminum plates, thereby effectively reducing the material cost of the OEM.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy heat treatment, in particular to a processing method for expired aluminum plates. Background technique [0002] Aluminum alloy is one of the key materials for automobile lightweight. Among them, the 6XXX series aluminum sheet has a low yield strength because of its low yield strength, which is beneficial to stamping. At the same time, its strength increases after stamping and baking, and can Many characteristics such as excellent dent resistance are obtained, so it is widely used in body panels. However, as an age-strengthenable alloy, the material properties of 6XXX series aluminum plate will change with the parking time. Specifically, as the parking time prolongs, the yield strength of the as-supplied state increases and the baking strength decreases. Therefore, major OEMs have set a certain shelf life for 6XXX series aluminum sheets, generally 6 months, and stipulated the performance of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F1/04
CPCC22F1/002C22F1/04
Inventor 吴新星倪娟丽邢阳俞雁孙通罗成浩
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD