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Preparation method of 5083-O-state battery case side plate for new energy automobile

A technology for new energy vehicles and battery shells, applied in the field of aluminum alloy production, can solve problems such as large differences in strength

Pending Publication Date: 2021-07-30
郑州明泰实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The early aluminum alloy battery shell side panels were mainly made of 3003 aluminum alloy 0-state materials, but the tensile strength of 3003-O-state materials is about 115MPa, and the yield strength is about 60MPa, which is quite different from conventional steel materials.

Method used

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  • Preparation method of 5083-O-state battery case side plate for new energy automobile
  • Preparation method of 5083-O-state battery case side plate for new energy automobile
  • Preparation method of 5083-O-state battery case side plate for new energy automobile

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Embodiment 1

[0029] A preparation method for a 5083-O state battery shell side plate for a new energy vehicle, comprising the following steps:

[0030] S1, smelting, weighing the raw materials as needed and adding them to the smelting furnace for smelting, and then standing for refining, stirring, degassing, slag removal, and filtering to obtain molten aluminum;

[0031] S2, casting an ingot, casting the molten aluminum obtained in step S1 into an aluminum alloy ingot;

[0032] S3, homogenizing heat treatment, performing homogenizing heat treatment on the aluminum alloy ingot obtained in step S2, cutting off the head and tail, and milling to obtain a pretreated alloy ingot;

[0033] S4, hot rolling, preheating the pretreated alloy ingot obtained in step S3 and then hot rolling to a hot-rolled billet with a thickness of 6.0mm, and the final temperature of hot rolling is above 310°C;

[0034] S5, cold rolling, cold rolling the hot-rolled billet obtained in step S4 to an intermediate cold-ro...

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Abstract

The invention belongs to the technical field of aluminum alloy, and particularly discloses a preparation method of a 5083-O-state battery case side plate for a new energy automobile. The method comprises the following steps of adding prepared raw materials into a smelting furnace for smelting, and then conducting standing refining, slagging-off, degassing and filtering to obtain molten aluminum; casting the molten aluminum into an aluminum alloy cast ingot; conducting homogenizing heat treatment on the aluminum alloy cast ingot; after preheating, conducting hot rolling to obtain a hot-rolled blank with the thickness of 6.0 mm, wherein the hot rolling final temperature is 310 DEG C or above; and conducting cold rolling to obtain an intermediate cold-rolled coiled material with the thickness of 2.5 mm, conducting intermediate annealing, conducting cold rolling again to obtain an aluminum alloy coiled material with the thickness of 1.2 mm, conducting stretch bending alkali washing, water washing and drying on the aluminum alloy coiled material, conducting finished product annealing, conducting plate shape withdrawal and straightening, and conducting transverse shearing and slitting to obtain the side plate. The tensile strength of the prepared 5083 material can reach 280 MPa or above, the surface dyne value is 60 dyne or above, and meanwhile, good forming performance and good corrosion resistance are achieved.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy production, in particular to a method for preparing a side plate of a 5083-O state battery case for a new energy vehicle. Background technique [0002] The battery pack is the core energy source of new energy vehicles, which provides driving power for the whole vehicle. It mainly constitutes the main body of the battery pack through the envelope of the shell. The battery pack mainly includes batteries, modules, casings and electrical systems. [0003] The battery pack shell is referred to as the battery shell, which is the carrier of the battery module and plays a key role in the safe operation and protection of the battery. Life and shell anti-collision considerations. [0004] Traditional new energy battery shell side panels are made of steel. However, with the development of environmental protection and lightweight of new energy vehicles, steel materials are gradually withdrawn due to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C21/08C22F1/02C22F1/047C23G1/22B21C37/02
CPCC22C1/026C22C21/08C22F1/047C22F1/02C23G1/22B21C37/02
Inventor 宋喜波柴明科李克振
Owner 郑州明泰实业有限公司
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