Processing technology for 5083 aluminum alloy plate for ship

A technology of aluminum alloy sheet and processing technology, applied in the field of metal materials, can solve the problems that the corrosion resistance of aluminum alloy sheet cannot be improved, and can not meet the production approval requirements of ABS marine aluminum alloy sheet, so as to increase mechanical properties and corrosion resistance. Effect

Inactive Publication Date: 2015-03-11
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

Method used

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  • Processing technology for 5083 aluminum alloy plate for ship
  • Processing technology for 5083 aluminum alloy plate for ship

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Mill the 5083 aluminum alloy plate with a thickness of 50 mm, heat the milled aluminum alloy plate at 450 degrees Celsius, and perform hot rough rolling and hot finish rolling on the heated plate to obtain an aluminum alloy with a thickness of 6.5 mm 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 3.25mm, 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 3mm. 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.

[0035] The performance of the aluminum alloy plate under H321 is measured, wherein the corrosion resistance is tested for exfoliation corrosio...

Embodiment 2

[0037] Mill the 15mm 5083 aluminum alloy plate, heat the milled aluminum alloy plate at 450 degrees Celsius, and perform hot rough rolling and hot finish rolling on the heated plate to obtain an aluminum alloy plate with a thickness of 6mm , 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 3.3 mm, and then intermediate annealing is carried out. After annealing, the plate The second cold rolling is carried out, and after the second cold rolling, the plate reaches a preset thickness of 3mm. 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.

[0038]The performance of the aluminum alloy plate under H321 is measured, wherein the corrosion resistance is tested for exfoliation corrosion sensitivity accordi...

Embodiment 3

[0040] The 20mm 5083 aluminum alloy plate is milled, the milled aluminum alloy plate 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 plate with a thickness of 8mm , 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 carried out. After annealing, the plate The second cold rolling is carried out, 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.

[0041] The performance of the aluminum alloy plate under H321 is measured, wherein the corrosion resistance is tested for exfoliation corrosion sen...

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Abstract

The invention provides a processing technology for a 5083 aluminum alloy plate for a ship. The processing technology comprises the following steps: performing milling, heating, hot-coarse rolling, hot-fine rolling, pre-annealing, preliminary cold rolling, middle annealing, secondary cooling, shearing straightening, stabilized thermal treatment and sawing for size fixing on a 5083 aluminum alloy ingot casting in sequence. Annealing is carried out in twice cold rolling, and the stabilized thermal treatment operation is finally carried out, so that the mechanical property and the corrosion resistance property of the aluminum alloy plate can be enhanced.

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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IPC IPC(8): C22F1/047
CPCC22F1/047C22C21/06C22C21/08
Inventor 王军李伟伍彬
Owner SOUTHWEST ALUMINUM GRP
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