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Processing technology for marine 5083 aluminum alloy sheet

An aluminum alloy sheet and processing technology, applied in the field of metal materials, can solve the problems of not improving the corrosion resistance of the aluminum alloy sheet, unable to meet the production approval requirements of the ABS marine aluminum alloy sheet, etc., to increase the mechanical properties and corrosion resistance. Effect

Inactive Publication Date: 2015-04-01
SOUTHWEST ALUMINUM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current production method cannot improve the corrosion resistance of the aluminum alloy sheet, so it cannot meet the production approval requirements of the ABS marine aluminum alloy sheet

Method used

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  • Processing technology for marine 5083 aluminum alloy sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A 500mm 5083 aluminum alloy ingot is face-milled, and the milled aluminum alloy ingot is heated at 450 degrees Celsius, and the heated plate is subjected to hot rough rolling and hot finish rolling to obtain a 7.0mm thick Aluminum alloy plate, the plate is annealed, the annealing temperature is 350 ° C, after annealing and cooling, the first cold rolling is carried out, the thickness of the plate after the first cold rolling is 4.5mm, and then intermediate annealing is performed, annealing Finally, the plate is subjected to the second cold rolling, and after the second cold rolling, the plate reaches a preset thickness of 4 mm. After the second cold rolling, the plate is sheared and straightened, and then the plate is heated to 80° C., kept for 3 hours, and sawed to length to obtain a marine 5083 aluminum alloy plate.

[0034] The performance of the aluminum alloy plate under H321 is measured, wherein the corrosion resistance is tested for exfoliation corrosion sensitiv...

Embodiment 2

[0036] The 480mm 5083 aluminum alloy ingot is face-milled, and the milled aluminum alloy ingot is heated at 450 degrees Celsius, and the heated plate is subjected to hot rough rolling and hot finish rolling to obtain an aluminum alloy with a thickness of 6mm. Alloy plate, the plate is annealed, the annealing temperature is 350 ° C, after annealing and cooling, the first cold rolling is performed, the thickness of the plate after the first cold rolling is 3.3mm, and then intermediate annealing is performed, after annealing , the plate is subjected to the second cold rolling, and after the second cold rolling, the plate reaches a preset thickness of 3 mm. After the second cold rolling, the plate is sheared and straightened, and then the plate is heated to 85° C., kept for 3 hours, sawed to length, and the marine 5083 aluminum alloy plate is obtained.

[0037]The performance of the aluminum alloy plate under H321 is measured, wherein the corrosion resistance is tested for exfolia...

Embodiment 3

[0039] A 480mm 5083 aluminum alloy ingot is face-milled, and the milled aluminum alloy ingot is heated at 450 degrees Celsius, and the heated plate is subjected to hot rough rolling and hot finish rolling to obtain a 7.0mm thick Aluminum alloy plate, the plate is annealed, the annealing temperature is 350 ° C, after annealing and cooling, the first cold rolling is carried out, the thickness of the plate after the first cold rolling is 4.5mm, and then intermediate annealing is performed, annealing Finally, the plate is subjected to the second cold rolling, and after the second cold rolling, the plate reaches a preset thickness of 4mm. After the second cold rolling, the plate is sheared and straightened, and then the plate is heated to 95° C., kept for 3 hours, sawed to length, and the marine 5083 aluminum alloy plate is obtained.

[0040] The performance of the aluminum alloy plate under H321 is measured, wherein the corrosion resistance is tested for exfoliation corrosion sens...

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Abstract

The invention provides a processing technology for a marine 5083 aluminum alloy sheet. The processing technology comprises the following steps: sequentially performing surface milling, heating, hot rough rolling, hot finishing, pre-annealing, first cold rolling, intermediate annealing, second cooling, shearing and strengthening on 5083 aluminum alloy ingot, carrying out stabilizing thermal treatment, sawing-cutting and sizing, to obtain the marine 5083 aluminum alloy sheet. The mechanical performance and corrosion resistance capability of the aluminum alloy sheet can be enhanced by adding annealing between twice cold rolling and finally performing stabilizing thermal treatment operation.

Description

technical field [0001] The invention belongs to the technical field of metal materials, and in particular relates to a processing technology for marine 5083 aluminum alloy plates. Background technique [0002] American Bureau of Shipping (ABS, full name: American Bureau of Shipping) was established in 1862. It is a non-governmental organization mainly dedicated to serving the public interest and customer needs. By developing and verifying the design, construction and operation standards of marine-related facilities, Protect the safety of human life, property and the natural environment. Ships entering the United States need to be certified by ABS. Therefore, in order to expand orders for marine products in order to meet the needs of foreign trade and sales, marine aluminum alloy plates need to meet the specifications of ABS Classification Society and obtain ABS certification. [0003] 5083 alloy has good strength and good machinability among non-heat treatable alloys. 508...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/02C22F1/04
CPCB21C37/02C22F1/04
Inventor 王军李伟伍彬
Owner SOUTHWEST ALUMINUM GRP
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