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Preparation method of 5083 aluminum alloy plate

A technology for aluminum alloy sheet and aluminum alloy ingot, which is applied in the field of aluminum alloy manufacturing, can solve problems such as directional surface defects, and achieve the effects of improving surface quality, eliminating slip lines, and alleviating strain aging effects.

Active Publication Date: 2019-02-19
TIANJIN ZHONGWANG ALUMINUM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, in order to solve the problem of directional surface defects on the surface of the pre-stretched aluminum alloy sheet in the prior art, the present invention provides a method for preparing a 5083 aluminum alloy sheet. By improving the process control means, the aluminum Under the premise that the performance of the alloy sheet meets the requirements for use, there will be no directional surface defects in the form of slip lines on the surface of the prepared aluminum alloy sheet

Method used

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  • Preparation method of 5083 aluminum alloy plate
  • Preparation method of 5083 aluminum alloy plate
  • Preparation method of 5083 aluminum alloy plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method of 5083 aluminum alloy plate, comprising the following steps:

[0032] A. The mass percentage ratio of each element in 5083 aluminum alloy ingot is as follows:

[0033] element

Si

Fe

Cu

mn

Mg

Cr

Zn

Ti

Impurities

Al

content

0.065

0.273

0.02

0.641

4.739

0.087

0.005

0.021

0.10

margin

[0034] Put the ingredients of prepared 5083 aluminum alloy plate into the smelting furnace at 700°C for smelting, keep it warm for 40 minutes, after removing slag and filtering, cast the molten aluminum into aluminum alloy ingots;

[0035] B. Place the melted aluminum alloy ingot in a heating furnace for homogenization heat treatment and cut off the head and tail for face milling. The homogenization heat treatment process is that the melted aluminum alloy ingot is heated to 500 ° C and kept for 4 hours;

[0036] C. Hot-roll the 5083 aluminum alloy ingot after homogenization heat tr...

Embodiment 2

[0040] A preparation method of 5083 aluminum alloy plate, comprising the following steps:

[0041] A. The mass percentage ratio of each element in 5083 aluminum alloy ingot is as follows:

[0042] element

Si

Fe

Cu

mn

Mg

Cr

Zn

Ti

Impurities

Al

content

0.065

0.197

0.015

0.623

4.82

0.089

0.005

0.023

0.10

margin

[0043] Put the ingredients of prepared 5083 aluminum alloy plate into the smelting furnace at 700°C for smelting, keep it warm for 40 minutes, after removing slag and filtering, cast the molten aluminum into aluminum alloy ingots;

[0044] B. Place the melted aluminum alloy ingot in a heating furnace for homogenization heat treatment and cut off the head and tail for face milling. The homogenization heat treatment process is that the melted aluminum alloy ingot is heated to 500 ° C and kept for 4 hours;

[0045] C. Hot-roll the 5083 aluminum alloy ingot after homogenization heat tr...

Embodiment 3

[0049] A preparation method of 5083 aluminum alloy plate, comprising the following steps:

[0050] A. The mass percentage ratio of each element in 5083 aluminum alloy ingot is as follows:

[0051] element

Si

Fe

Cu

mn

Mg

Cr

Zn

Ti

Impurities

Al

content

0.055

0.189

0.013

0.637

4.87

0.088

0.005

0.022

0.10

margin

[0052] Put the ingredients of prepared 5083 aluminum alloy plate into the smelting furnace at 700°C for smelting, keep it warm for 40 minutes, after removing slag and filtering, cast the molten aluminum into aluminum alloy ingots;

[0053]B. Place the melted aluminum alloy ingot in a heating furnace for homogenization heat treatment and cut off the head and tail for face milling. The homogenization heat treatment process is that the melted aluminum alloy ingot is heated to 500 ° C and kept for 4 hours;

[0054] C. Hot-roll the 5083 aluminum alloy ingot after homogenization heat tre...

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Abstract

The invention belongs to the technical field of aluminum alloy manufacturing and relates to a preparation method of a 5083 aluminum alloy plate. The preparation method comprises the steps of conducting saw cutting and surface milling on a 5083 cast ingot, heating the 5083 cast ingot and then conducting hot rolling on the 5083 cast ingot; conducting annealing treatment at 85-105 DEG C after a plateis cooled to the indoor temperature; and then immediately conducting low-temperature prestretching to obtain the 5083 aluminum alloy plate. According to the preparation method, through low-temperature prestretching treatment on the 5083 aluminum alloy plate, the strain ageing effect during plate prestretching is effectively eliminated, and then slip lines on the surface of the prepared aluminum alloy plate are eliminated. The experimental result shows that a tensile strength and elongation curve of the 5083 aluminum alloy prepared through the method in the prestretching process has no obviousserrated waveforms. The surface of the prepared aluminum alloy plate has no slip lines, and the surface quality is improved.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy manufacturing, and relates to a preparation method of a 5083 aluminum alloy plate. Background technique [0002] 5083 aluminum alloy has high strength, excellent corrosion resistance and good weldability, and is a typical alloy of 5 series alloys. 5083 aluminum alloy plates with different heat treatment states are widely used in mold manufacturing, transportation, electronic appliances, marine engineering and other fields. At present, with the development of lightweight technology, 5083 aluminum alloy thick plates are gradually replacing steel of the same specification for shipbuilding. [0003] At present, the final rolling temperature used in the production of 5083 thick plates in the industry is relatively low, and the plate shape of the alloy after hot rolling is poor, so pre-stretching treatment is required. On the one hand, it is used to correct the plate shape, and on the other hand...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22F1/06
CPCC22C21/08C22F1/06
Inventor 杨直达马青梅郭富安张义李玉博金雪陈金生
Owner TIANJIN ZHONGWANG ALUMINUM IND CO LTD
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