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Production method of 5052-H34 aluminum alloy plate strip

A technology of aluminum alloy strip and production method, which is applied in the field of aluminum alloy manufacturing, can solve the problems of high temperature uniformity and precision requirements of annealing furnace, change of annealing temperature range, large dispersion of mechanical properties, etc., and achieve temperature measurement accuracy and furnace Reduced temperature uniformity requirements, stable performance after annealing, and large temperature range

Active Publication Date: 2014-11-26
ALUHOUSE TECHGD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The annealing temperature range of the finished product is narrow (about 5°C) for the plate and strip produced by this process, and the subtle difference of the billet may cause the change of the annealing temperature range, which requires high temperature uniformity and precision of the annealing furnace, and the dispersion of mechanical properties after annealing is relatively large , and even performance failures

Method used

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  • Production method of 5052-H34 aluminum alloy plate strip
  • Production method of 5052-H34 aluminum alloy plate strip
  • Production method of 5052-H34 aluminum alloy plate strip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The production method of the 5052-H32 aluminum alloy plate and strip in this embodiment includes the following production process: melting and casting→sawing→face milling→heating→hot rolling→cold rolling→finished product annealing→finishing.

[0026] (1) Melting and casting: the mass percentage of the chemical composition of the ingot after melting and casting is:

[0027] Al

Si

Fe

Cu

mn

97.0772

0.0598

0.1568

0.0029

0.0228

Mg

Ti

Cr

Zn

Ni

2.4062

0.0161

0.2436

0.0116

0.003

[0028] The melting temperature is 740-755°C, the refining temperature is 720-735°C, and the casting temperature is 675-680°C.

[0029] (2) Heating: After the ingot is heated to 500°C, the holding time is 4 hours.

[0030] (3) Hot rolling: the finishing temperature of hot rough rolling is 440°C, the finishing temperature of hot finishing rolling is 333°C, and the thickness of hot rolling billet: 2.5mm ...

Embodiment 2

[0036] The production method of the 5052-H34 aluminum alloy plate and strip in this embodiment includes the following production process: melting and casting→sawing→face milling→heating→hot rolling→cold rolling→finished product annealing→finishing.

[0037] (1) Melting and casting: the mass percentage of the chemical composition of the ingot after melting and casting is:

[0038] Al

Si

Fe

Cu

mn

96.7989

0.0623

0.2621

0.0044

0.0196

Mg

Ti

Cr

Zn

Ni

[0039] 2.6577

0.0148

0.1682

0.0095

0.0025

[0040] The melting temperature is 740-755°C, the refining temperature is 725-740°C, and the casting temperature is 680-695°C.

[0041] (2) Heating: the ingot heating temperature is 515°C, and the holding time is 2.5 hours.

[0042] (3) Hot rolling: the finishing temperature of hot rough rolling is 448°C, the finishing rolling temperature of hot finishing rolling is 340°C, and the t...

Embodiment 3

[0049] The short-process production method of 5052-H34 aluminum alloy plate and strip in this embodiment includes the following production process: melting and casting→sawing→face milling→heating→hot rolling→cold rolling→finished product annealing→finishing.

[0050] (1) Melting and casting: the mass percentage of the chemical composition of the ingot after melting and casting is:

[0051] Al

Si

Fe

Cu

mn

97.1321

0.0639

0.1642

0.0039

0.0127

Mg

Ti

Cr

Zn

Ni

2.3576

0.0213

0.2241

0.0166

0.0036

[0052] The melting temperature is 735-750°C, the refining temperature is 720-740°C, and the casting temperature is 680-690°C.

[0053] (2) Heating: the heating temperature of the ingot is 490°C, and the holding time is 5 hours.

[0054] (3) Hot rolling: the finishing temperature of hot rough rolling is 433°C, the finishing temperature of hot finishing rolling is 340°C, and the thickness of ...

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Abstract

The invention discloses a production method of a 5052-H34 aluminum alloy plate strip. The production method mainly comprises the following steps of: fusion casting, saw cutting, plane milling, heating, hot rolling, cold rolling, finished-product annealing and finishing; in the hot rolling step, the hot rolled coil thickness is reserved by 40-60 percent according to the thickness of a finished product, the finish rolling temperature during hot rough rolling is 430-450 DEG C, and the finish rolling temperature during hot finish rolling is 320-350 DEG C; and in the cold rolling step, the finished-product thickness is achieved through 1-pass or 2-pass of cold rolling, and the total working rate is 40-60 percent. According to the invention, with regard to the 5052-H34 product with the finished-product thickness of being more than or equal to 0.8mm, the working procedures of carrying out full annealing and intermediate annealing on a hot-rolled blank can be saved, the production flow can be shortened and the product cost is reduced.

Description

technical field [0001] The invention relates to the field of aluminum alloy manufacturing, in particular to a production method of 5052-H34 aluminum alloy plate and strip. Background technique [0002] 5052 aluminum alloy is the most widely used alloy among Al-Mg series alloys. Its plate and strip series products have the characteristics of medium strength, good resistance to acid rain and marine climate corrosion, easy processing and forming, and excellent welding performance. 5052-H34 sheet and strip is the type with the largest consumption and adaptability. It is widely used in building interior and exterior wall decoration, container, automobile and ship manufacturing industries. With the rapid development of these industries, the consumption of 5052-H34 sheet has increased rapidly. At the same time, the requirements for comprehensive mechanical properties and surface quality are getting higher and higher. [0003] 5052-H34 performance control range [0004] [0005...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/08C22F1/047
Inventor 冷正长黄文辉张俊才王英武曲明洋徐炳申皮洪张亚伟黎亮
Owner ALUHOUSE TECHGD CO LTD
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