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Manufacturing method of aluminum alloy plate for high-strength thinning and drawing

An aluminum alloy sheet, high-strength technology, used in battery box/sleeve materials, electrical components, circuits, etc., can solve the problem that the surface quality of the board is difficult to meet the mass and high-efficiency production, the internal structure of the alloy is difficult to control, and the strength of the sheet is difficult to control. It can solve the problem of low temperature oxidation and blackening of the board surface, control the surface roughness, and improve the surface quality.

Active Publication Date: 2018-06-29
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for producing high-strength thinning and deep drawing aluminum alloy plates by using cast-rolled slabs, so that it can adapt to the high-efficiency deep drawing and deep drawing thinning process and quality requirements of battery shells, so as to overcome the problems in the prior art. The cost of producing battery shells is high, the strength of the plates used is low, the internal structure of the alloy is difficult to control, and the surface quality of the plates is difficult to meet the high-volume and high-efficiency production.

Method used

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  • Manufacturing method of aluminum alloy plate for high-strength thinning and drawing
  • Manufacturing method of aluminum alloy plate for high-strength thinning and drawing
  • Manufacturing method of aluminum alloy plate for high-strength thinning and drawing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) The chemical composition of the aluminum alloy plate of Example 1 is calculated by mass percentage, as shown in Table 2:

[0026] Table 2 Chemical Composition of Aluminum Alloy Sheets Unit: %

[0027]

[0028] (2) Casting and rolling processing:

[0029] According to the composition of the aluminum alloy in the step (1), adopt 99.70% industrial pure aluminum ingot, manganese agent, iron agent, silicon agent, copper agent, magnesium ingot, 8% 1060 pure aluminum scraps as raw material preparation described aluminum alloy, satisfy The 20-ton-capacity charge is configured. After the raw materials are smelted, refined, and allowed to stand still, titanium wire is added, and after online deslagging and degassing, they are sent to the continuous casting and rolling machine through the casting nozzle. They are produced on an inclined casting and rolling machine with a specification of Ф980×2000mm. Cast and rolled into 7.6mm×1500mm×L cast-rolled slab stock coils. The sm...

Embodiment 2

[0036] (1) The chemical composition of the aluminum alloy sheet material of embodiment 2 is calculated by mass percentage, as shown in table 3:

[0037] Table 3 Chemical Composition of Aluminum Alloy Sheet Unit: %

[0038]

[0039] (2) Casting and rolling processing:

[0040] According to the composition of the aluminum alloy in the step (1), adopt 99.70% industrial pure aluminum ingot, manganese agent, iron agent, silicon agent, copper agent, magnesium ingot, 8% 1060 pure aluminum scraps as raw material preparation described aluminum alloy, satisfy The 20-ton furnace charge is configured. After the raw materials are smelted, refined, and allowed to stand still, titanium wire is added. After online deslagging and degassing, they are sent to the continuous casting and rolling machine through the casting nozzle. They are produced on an inclined casting and rolling machine with a specification of Ф980×2000mm. Cast and rolled into 7.6mm×1500mm×L cast-rolled slab stock coils. Am...

Embodiment 3

[0047] (1) The chemical composition of the aluminum alloy sheet material of embodiment 3 is calculated by mass percentage, as shown in table 4:

[0048] Table 4 Chemical Composition of Aluminum Alloy Sheet Unit: %

[0049]

[0050] (2) Casting and rolling processing:

[0051] According to the composition of the aluminum alloy in step (1), 99.70% industrially pure aluminum ingot, manganese agent, iron agent, silicon agent, copper agent, and magnesium ingot are used as raw materials to prepare the aluminum alloy to meet the configuration of the furnace charge with a capacity of 20 tons. After smelting, refining, and standing still, titanium wire is added, and after online slag and gas removal, it is sent to the continuous casting and rolling machine through the casting nozzle. It is selected to be produced on the inclined casting and rolling machine with the specification of Ф980×2000mm, and the casting and rolling is 7.0mm×1500mm× L of cast-rolled slab stock rolls. The sme...

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Abstract

The invention belongs to the technical field of aluminum alloy plate strip foil machining, and particularly relates to a manufacturing method for producing an aluminum alloy plate for high-strength thinning and drawing by adopting a cast-rolled blank. The manufacturing method of the aluminum alloy plate for high-strength thinning and drawing comprises the following specific steps of preparing an aluminum alloy with an industrial aluminum ingot, a Fe agent, a Si agent, a copper agent, a magnesium ingot and the like as raw materials, the aluminum alloy is subjected to smelting, refining and standing, and titanium wires are added, and then the aluminum alloy is subjected to cast rolling after online slag removal and degassing and is machined into a cast-rolled plate blank roll; and homogenizing annealing is carried out during cold rolling machining of the plate blank roll, annealing is carried out in a nitrogen annealing furnace, then intermediate annealing is carried out on the rolled material, and finally a finished product with the thickness of 0.5 mm is obtained through cold rolling. According to the manufacturing method of the aluminum alloy plate for high-strength thinning and drawing, the manufactured aluminum alloy plate is high in tensile strength, low in lug-making rate and controllable in surface roughness, good deep punching and thinning performance is met, and meanwhile, the utilization rate of the material is improved; and compared with existing common hot-rolled plates, the plate produced though the cast-rolled blank is capable of reducing the cost by about 20%and has a wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of processing aluminum alloy plates, strips and foils, and in particular relates to a method for preparing high-strength aluminum alloy plates for thinning and deep drawing. Background technique [0002] As the country promotes the construction of an energy-saving and resource-saving society, the lightweight of automobiles and the development of new energy vehicles, the application of aluminum materials in automobiles is increasing. The key to new energy vehicles is the development of power batteries. The current problems that need to be solved in the power battery industry are concentrated in: the energy density of batteries cannot be low, the battery life cannot be short, the ability to control battery costs must be strengthened, and the weight of batteries must be reduced. . One of the important materials for the production of power batteries is aluminum. Mainly used for battery case, battery lug, batte...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22F1/04C22C1/06B22D11/06H01M2/02H01M50/116
CPCC22C1/06C22C21/00C22F1/04B22D11/003B22D11/06H01M50/116Y02E60/10
Inventor 潘秋红范本泽马静王腊梅申哲石燕菲刘冲冲
Owner JIANGSU UNIV
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