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An annealing process of an aluminum alloy coil

An annealing process, an aluminum alloy technology, applied in the annealing process field of aluminum alloy coils, can solve the problems of shortening the annealing time, the difference in the microstructure and properties of the coil head and tail of the finished material, etc., so as to shorten the annealing time, monitor the annealing temperature, and achieve a remarkable production effect. Effect

Active Publication Date: 2016-09-14
YINBANG CLAD MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above problems, the present invention provides an annealing process of aluminum alloy coils, which can greatly shorten the annealing time, solve the problem of the difference in the structure and performance of the finished material rolls existing in the existing aluminum alloy annealing process, and can effectively control the crystallization process. Increase the size of the grain, improve the plasticity and toughness of the finished coil

Method used

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  • An annealing process of an aluminum alloy coil

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Experimental program
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Effect test

Embodiment 1

[0016] Put 6 volumes of 1 series 1060, 0.25×1020×C aluminum alloy coils produced by casting and cold rolling according to the normal process into a 50-ton electric heating annealing furnace, and insert thermocouples on the outside and inside of the first coil near the furnace door;

[0017] The annealing process is set as follows: the annealing target temperature T of the aluminum alloy coil is 330°C, the ΔT is set to 90°C, and the Δt is set to 30°C. The alloy coil is heated up rapidly, and the temperature rise rate is controlled at 2.4°C / min. At the same time, the temperature of the outer high temperature point of the aluminum alloy coil is monitored. When the monitored outer high point temperature of the coil reaches 330°C-30°C, the annealing furnace The air temperature drops to 330°C, and the cooling time is 90 minutes. When the monitored inner low point temperature of the aluminum alloy coil reaches (330°C-10°C), keep warm for 60 minutes and air cool.

[0018] After anneal...

Embodiment 2

[0020] Put 4 rolls of 1 series 1060, 0.15×1000×C aluminum alloy coils produced by casting and cold rolling according to the normal process into a 25-ton electric heating annealing furnace, and insert thermocouples on the outside and inside of the first roll near the furnace door;

[0021] The annealing process is set as follows: the annealing target temperature T of the aluminum alloy coil is 390°C, the ΔT is set to 20°C, and the Δt is set to 15°C. The alloy coil is heated up rapidly, and the heating rate is controlled at 2.4°C / min. At the same time, the temperature of the externally measured high temperature point of the aluminum alloy coil is monitored. When the monitored high temperature on the outside of the coil reaches 390°C-15°C, the furnace The air temperature drops to 390°C, and the cooling time is 70 minutes. When the monitored low temperature of the inner side of the aluminum alloy coil reaches (390°C-25°C), heat preservation for 80 minutes and air cooling.

[0022]...

Embodiment 3

[0024] According to the above raw material ratio, 4 volumes of 3003, 0.25×1020×C aluminum-magnesium coils produced by casting and cold rolling according to the normal process are put into a 25-ton electric heating annealing furnace, and inserted on the outside and inside of the first volume near the furnace door. upper thermocouple;

[0025] The annealing process is set as follows: the annealing target temperature T of the aluminum alloy coil is 360°C, the ΔT is set to 110°C, and the Δt is set to 40°C. The aluminum alloy coil is heated up rapidly, and the temperature rise rate is controlled at 3 / min. At the same time, the temperature of the external high temperature point of the aluminum alloy coil is monitored. The air temperature drops to 360°C, and the cooling time is 75 minutes. When the monitored inner low point temperature of the aluminum alloy coil reaches (360°C-20°C), keep warm for 120 minutes and air cool.

[0026] After annealing, the finished state of aluminum an...

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Abstract

The present invention provides an annealing process for aluminum alloy coils, which can greatly shorten the annealing time, and solve the problem of differences in the structure and performance of finished product rolls that exist when the aluminum-magnesium alloy coils are annealed using the existing aluminum alloy annealing process problems, and can effectively control the grain size, improve the plasticity and toughness of the finished coil. It is characterized in that: put the aluminum alloy coil into the annealing heating furnace, set the temperature of the furnace gas in the annealing heating furnace to T+ΔT to rapidly raise the temperature of the aluminum alloy coil, and monitor the temperature of the aluminum alloy coil at the same time. When the outer temperature of the aluminum alloy coil, that is, the high point temperature of the coil reaches T‑Δt, lower the temperature of the furnace gas in the annealing furnace to T, and the cooling time is 60 minutes to 90 minutes. When the point temperature reaches T-(5°C~30°C), heat it for 60min~120min and then leave the furnace for air cooling, where the temperature T is the predetermined target temperature for the annealing of the aluminum alloy material, ΔT is 20°C~150°C, and Δt is 10°C~ 70°C.

Description

technical field [0001] The invention relates to the field of production technology of aluminum alloy materials, in particular to an annealing technology of aluminum alloy coils. Background technique [0002] The 5XXX series aluminum alloy, that is, aluminum-magnesium alloy, has a Mg content of 2.5%~3.8%. It has the characteristics of light weight, high strength, good corrosion resistance and weldability, and easy processing and forming. It is widely used in aerospace, transportation, Various fields such as IT industry and architectural decoration. With the development of related industries such as automobiles, ships, and aerospace, the demand for aluminum-magnesium alloy materials is increasing. Therefore, obtaining Al-Mg alloy coils with excellent microstructure and stable performance is the core issue in the research of this series of alloys. [0003] 5XXX series aluminum alloys, that is, aluminum-magnesium alloys, are deformable aluminum alloys that cannot be strengthen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F1/04
Inventor 陈伟凌亚标曹磊
Owner YINBANG CLAD MATERIAL
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