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5182 aluminum alloy

An aluminum alloy, weight percentage technology, applied in metal rolling, metal rolling, metal processing equipment and other directions, can solve the problems of uneven grain size and performance, unfavorable large-scale production control, and large performance fluctuation range. The effect of optimizing the tension-bending straightening process, controlling the grain size and improving the surface quality

Active Publication Date: 2018-08-31
广西南南铝加工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional process has the following disadvantages: (1) The ratio of the components of the traditional 5182 national standard is not conducive to the regulation of performance, and the performance fluctuation range is large; (2) Due to the temperature difference between the surface and the core of the traditional coil annealing, it is easy to appear grain size and performance (3) Unreasonable cold rolling deformation will lead to high yield ratio of the strip, so that the shutdown is often caused by broken strip, which is not conducive to the shape of the strip. Regulation and large-scale production control; (4) The increase in the number of annealing in the cold rolling process leads to the extension of the production cycle and the increase of energy consumption costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of process method that 5182 aluminum alloy is prepared into can lid material strip, operation steps are as follows:

[0031] (1) Take 5182 aluminum alloy, which is composed of the following components according to weight percentage: Si: 0.045%, Fe: 0.16%, Cu: 0.049%, Mn: 0.5%, Mg: 4.62%, Cr: 0.015%; Zn : ≤0.027%, Ti: 0.023%, others are Al and some unavoidable impurity elements;

[0032] (2) Hot rolling: the 5182 aluminum alloy obtained in step (1) is kept at a temperature of 720-730°C for 8 hours for melting, 700-710°C for 5 hours, and then made into a flat ingot with a specification of 420mm×1420mm×6500mm, and the obtained The slab is maintained at a temperature of 550±10°C for 10 hours of thermal treatment, cooled, and the resulting slab is cut and milled at the head and tail, the upper and lower surfaces are milled at 15mm, and the side milling is 10mm. The preheating temperature of the material obtained after milling is 510 ℃, the time is 6h, hot rolling is ...

Embodiment 2

[0041] A kind of process method that 5182 aluminum alloy is prepared into can lid material strip, operation steps are as follows:

[0042] (1) Take 5182 aluminum alloy, which is composed of the following components according to weight percentage: Si: 0.0511%, Fe: 0.18%, Cu: 0.0505%, Mn: 0.34%, Mg: 4.5421%, Cr: 0.0308%; Zn : 0.0310%, Ti: 0.0180%, others are Al and some unavoidable impurity elements;

[0043](2) Hot rolling: the 5182 aluminum alloy obtained in step (1) is kept at a temperature of 730-740°C for smelting for 6 hours, kept at 700-710°C for 5 hours, and then made into a flat ingot with a specification of 420mm×1420mm×6500mm. The flat ingot is kept at a temperature of 550±10°C for 10 hours of soaking heat treatment, and cooled. After cooling, the obtained flat ingot is cut and face milled. The upper and lower surfaces are each milled with 15mm, and the side milled with 10mm. The preheating temperature of the material obtained after milling is 490 ℃, the time is 15h,...

Embodiment 3

[0049] A kind of process method that 5182 aluminum alloy is prepared into can lid material strip, operation steps are as follows:

[0050] (1) Take 5182 aluminum alloy, which is composed of the following components according to weight percentage: Si: 0.0369%, Fe: 0.1903%, Cu: 0.0501%, Mn: 0.3444%, Mg: 4.7460%, Cr: 0.0422%; Zn : 0.0258%, Ti: 0.0142%, others are Al and some unavoidable impurity elements;

[0051] (2) Hot rolling: the 5182 aluminum alloy obtained in step (1) is kept at a temperature of 750-760°C for 7 hours for melting, 700-710°C for 5 hours, and then made into a flat ingot with a specification of 420mm×1420mm×6500mm. The slab is maintained at a temperature of 550±10°C for 10 hours of soaking heat treatment, and cooled. After cooling, the slab is cut from head to tail and face milled. The upper and lower surfaces are each milled at 15mm, and the side milling is 10mm. The preheating temperature of the material obtained after milling is 520 ℃, the time is 5h, hot ...

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Abstract

The invention discloses a 5182 aluminum alloy. The aluminum alloy is composed of Si, Fe, Cu, Mn, Mg, Cr, Zn, Ti, and remaining Al and some inevitable impurities. A preparing technology of a tank cover material strip through the 5182 aluminum alloy comprises the steps of firstly, taking of the 5182 aluminum alloy; secondly, hot rolling, cooling and obtaining a blank for cold rolling; thirdly, primary cold rolling, and obtaining a cold-rolled intermediate product, wherein the total deformation amount ranges from 66% to 78%; fourthly, air cushion furnace annealing; fifthly, secondary cold rolling, wherein the total deformation amount ranges from 71% to 76%; sixthly, stretch bending and correcting. According to the 5182 aluminum alloy and the preparing technology of the tank cover material strip through the 5182 aluminum alloy, through high alloying, the alloy strength is improved, meanwhile, the content of Fe and Si is reasonably controlled, and bank mark generation is restrained; continuous air cushion furnace annealing is adopted, through high-temperature short-time annealing, the grains are adjusted and controlled, uniformity of the strip performance is improved, and meanwhile the strip surface quality is ensured.

Description

technical field [0001] The invention relates to a preparation process of an alloy and its strip, in particular to a 5182 aluminum alloy and a process method for preparing the aluminum alloy into a can lid strip. Background technique [0002] 5182 is a high-Mg aluminum alloy. Due to its high strength and excellent processing performance, it is the largest material for the single production of aluminum alloy can lids and pull rings. With the increase in demand for can lids and tabs and the continuous development of can production technology, the speed of can production has been increasing. In order to reduce the waste rate of can end punching and improve the punching efficiency, the fluctuation range of various indicators of can end material should be small. In addition, the can lid material has extremely high requirements on the surface quality of the strip. The surface should be smooth and clean, and no oil spots, severe scratches and other surface defects that affect the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/08C22C21/06C22F1/047B21B37/74B21B37/46
CPCB21B37/46B21B37/74B21B2261/20B21B2275/04C22C21/06C22C21/08C22F1/047
Inventor 宋丰轩黄奎任月路赵启忠李飞龙莫宇飞
Owner 广西南南铝加工有限公司
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