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A kind of production method of aluminum-magnesium alloy coil

A production method and aluminum-magnesium alloy technology, applied in the production field of aluminum-magnesium alloy coils, can solve problems such as long production cycle, high production cost, and cumbersome production process, and achieve streamlined production process, reduced production cost, and shortened production cycle Effect

Active Publication Date: 2018-01-16
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

The above-mentioned conventional production method has the following disadvantages: the production process is relatively cumbersome, the production process requires two cleanings and two annealings, the production cycle is long, and the production cost is high. At the same time, due to many processes, the probability of defects in the production process also increases.

Method used

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  • A kind of production method of aluminum-magnesium alloy coil
  • A kind of production method of aluminum-magnesium alloy coil
  • A kind of production method of aluminum-magnesium alloy coil

Examples

Experimental program
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Effect test

Embodiment 1

[0007] A kind of production method of aluminum-magnesium alloy coil material of this example, comprises the following several steps: the first step smelting: 1).Batching: with the pure aluminum ingot of batching, add a small amount of aluminum alloy waste material, Fe, Si, Cu The master alloy ingot is loaded into the melting furnace, and the weight percentage of the composition is: Mg2.2%, Mn0.1%, Cr0.15%, Fe2 / s, flash point 120°C; the fifth step of cleaning: the coiled material passes through the cleaning machine to remove oil stains and sundries on the surface of the coiled material; the sixth step of intermediate annealing: put the coiled material into a box furnace for complete recrystallization annealing, annealing The temperature is 330°C, the holding time is 20h, and the high-speed two-pass continuous cold rolling is carried out when the coil end surface temperature is 70°C; the seventh step is high-speed two-pass continuous cold rolling: a. Use single-stand SMS six-roll...

Embodiment 2

[0012] A kind of production method of aluminum-magnesium alloy coil material of this example, comprises the following several steps: the first step smelting: 1).Batching: with the pure aluminum ingot of batching, add a small amount of aluminum alloy waste material, Fe, Si, Cu The master alloy ingot is loaded into the melting furnace, and the weight percentage of the composition is: Mg3.85%, Mn0.55%, Cr0.25%, Fe2 / s, flash point 127.5°C; the fifth step of cleaning: the coiled material is cleaned by a cleaning machine to remove oil stains and sundries on the surface of the coiled material; the sixth step of intermediate annealing: the coiled material is put into a box furnace for complete recrystallization annealing treatment, annealed The temperature is 355°C, the holding time is 24h, and the high-speed two-pass continuous cold rolling is carried out when the coil end surface temperature is 80°C; the seventh step is high-speed two-pass continuous cold rolling: a. Use single-stand...

Embodiment 3

[0017]A kind of production method of aluminum-magnesium alloy coil material of this example, comprises the following several steps: the first step smelting: 1).Batching: with the pure aluminum ingot of batching, add a small amount of aluminum alloy waste material, Fe, Si, Cu The master alloy ingot is loaded into the melting furnace, and the weight percentage of the composition is: Mg5.5%, Mn1.0%, Cr0.35%, Fe2 / s, flash point 135°C; the fifth step of cleaning: the coiled material passes through the cleaning machine to remove oil stains and sundries on the surface of the coiled material; the sixth step of intermediate annealing: put the coiled material into a box furnace for complete recrystallization annealing, annealing The temperature is 380°C, the holding time is 28h, and the high-speed two-pass continuous cold rolling is carried out when the coil end surface temperature is 90°C; the seventh step is high-speed two-pass continuous cold rolling: a. Use single-stand SMS six-rolle...

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Abstract

The invention discloses a production method of an aluminum-magnesium alloy coil. The weight percentage of the aluminum-magnesium alloy coil is Mg2.2-5.5%, Mn0.1-1.0%, Cr0.15-0.35%, Fe<0.4%, Si<0.4%, Ti<0.25%, Cu<0.1%, Zn<0.1%, the content of other individual elements is ≤0.05%, and the balance is Al. The method includes smelting, ingot casting, hot rolling, cold rolling, cleaning, intermediate annealing, high-speed two-pass continuous cold rolling, finishing and packaging. The method simplifies the production process, shortens the production cycle, reduces the production cost and the probability of defects in the aluminum-magnesium alloy coil.

Description

technical field [0001] The invention relates to the technical field of nonferrous metal production, in particular to a production method of an aluminum-magnesium alloy coil. Background technique [0002] Aluminum-magnesium alloys are usually used in the hot-worked state and the cold-worked-stabilized annealed state. Cold work hardening is the main way to strengthen aluminum-magnesium alloys. After the metal undergoes cold plastic deformation, its internal defects increase sharply, and the yield strength, tensile strength and electrical resistance of the metal increase, while the elongation and toughness decrease. Due to the large internal stress of the alloy storage due to cold working, especially the poor stability of the supersaturated solid solution of high-magnesium aluminum alloy, it is easy to cause "aging softening". Therefore, stabilization treatment must be carried out after cold working to eliminate the internal stress of the alloy. And maintain a higher intensity...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/08C22C21/06C22C1/03C22F1/047B21B1/28B21B1/36
Inventor 苏丽萍王华春彭自业马英义曹盛强赵启淞王艳丽郝成罡
Owner 广西南南铝加工有限公司
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