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Preparation process of aluminum alloy 5083 with high bending performance

A preparation process and aluminum alloy technology, which is applied in the field of aluminum alloy manufacturing, can solve the problems of poor bending resistance and prone to corrosion at splices, and achieve the effects of wide application range, reduced risk of corrosion and cracking, and high bending processing performance

Inactive Publication Date: 2019-01-25
TIANJIN ZHONGWANG ALUMINUM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, in order to solve the problem in the prior art that the 5083-O state aluminum alloy has poor bending resistance, the cable frame for ships can only be manufactured by a combination of splicing and welding, and the splicing is prone to corrosion, and provides a Preparation process of a high bending performance 5083 aluminum alloy

Method used

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  • Preparation process of aluminum alloy 5083 with high bending performance
  • Preparation process of aluminum alloy 5083 with high bending performance
  • Preparation process of aluminum alloy 5083 with high bending performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation process of 5083 aluminum alloy with high bending performance, comprising the steps of:

[0024] A, A, prepare 5083 aluminum alloy raw materials according to the following ratios in parts by weight:

[0025] element

Si

Fe

Cu

mn

Mg

Cr

Zn

Ti

Impurities

Al

content

0.046

0.194

0.012

0.398

4.618

0.051

0.023

0.019

0.05

margin

[0026] Adding the prepared 5083 aluminum alloy raw materials into a melting furnace for uniform mixing and melting into a liquid aluminum alloy to obtain an aluminum alloy melt;

[0027] B. Refining the aluminum alloy melt at 720°C for 40 minutes, melting and casting the refined aluminum alloy melt into an aluminum alloy ingot;

[0028] C. Carry out sawing and milling of 5083 aluminum alloy ingots, send the 5083 aluminum alloy ingots after sawing and milling into a heating furnace, heat them at 540°C for 6 hours, then cool them down to 500°C for 2 hou...

Embodiment 2

[0033] The difference between embodiment 2 and embodiment 1 is that the thickness of the aluminum alloy plate after cold rolling in step D is 6.4mm, and the cold rolling processing rate is 36%.

Embodiment 3

[0035] The difference between embodiment 3 and embodiment 1 is that the thickness of the aluminum alloy plate after cold rolling in step D is 4.8mm, and the cold rolling processing rate is 52%.

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Abstract

The invention belongs to the technical field of aluminum alloy manufacturing, and relates to a preparation process of aluminum alloy 5083 with high bending performance. The preparation process includes cutting and milling ingots of aluminum alloy 5083, sending the cut and milled ingots of aluminum alloy 5083 to a heating furnace, heating at the temperature of 54 DEG C for 6 hours, cooling to the temperature of 500 DEG C, holding the temperature for 2 hours, discharging and performing hot rolling until the thickness of the aluminum alloy sheets is 10.0mm under the finishing rolling temperatureof 320 DEG C, naturally cooling the hot-rolled aluminum alloy sheets to the room temperature, performing cold rolling until the thickness of the aluminum alloy sheets ranges from 3.0 to 8.0 mm with the cold rolling rate ranging from 20% to 70%, annealing at the temperature of 260-340 DEG C for 2 hours after cold rolling, straightening to obtain 5083-O type aluminum alloy sheets. The preparation method has the advantages simple processing and low energy consumption; the finished product has high bending processing performance and wide application range.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy manufacturing, and relates to a preparation process of a 5083 aluminum alloy with high bending performance, in particular to a preparation process of a 5083-O state aluminum alloy plate. Background technique [0002] Due to its excellent comprehensive performance, aluminum alloys are widely used in vehicle transportation, shipbuilding and other fields to replace steel with high weight to achieve the purpose of light weight, energy saving and emission reduction, thereby improving energy utilization. 5083-O aluminum alloy is used as the material of the ship's cable rack. While reducing its own weight, the 5083 aluminum alloy has the advantages of high strength and good corrosion resistance, which makes it perform better in the corrosive marine environment. Although the existing technology has used 5083-O aluminum alloy to replace steel, the technology of manufacturing cable racks from steel i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C21/08C22F1/047C21D9/00
CPCC21D9/0081C22C1/026C22C21/08C22F1/047
Inventor 陈金生马青梅张义张国文杨直达李玉博金雪郭富安秦俊杰
Owner TIANJIN ZHONGWANG ALUMINUM IND CO LTD
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