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Method for manufacturing high-strength aluminum alloy material for vehicle heat exchanger

A technology of aluminum alloy materials and heat exchangers, which is applied in the field of high-strength aluminum alloy materials, can solve problems such as roughening, uneven wave height of heat sink materials, and uneven deformation, so as to inhibit erosion, improve strength and corrosion resistance , the effect of inhibiting growth

Inactive Publication Date: 2011-08-03
MITSUBISHI ALUMINUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the structure is coarsened after the brazing process, the structure before the brazing process is coarsened, or recrystallized grains partially exist
As a result, the wave height of the fin material becomes uneven, or the deformation during final rolling becomes uneven

Method used

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  • Method for manufacturing high-strength aluminum alloy material for vehicle heat exchanger
  • Method for manufacturing high-strength aluminum alloy material for vehicle heat exchanger
  • Method for manufacturing high-strength aluminum alloy material for vehicle heat exchanger

Examples

Experimental program
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no. 1 approach

[0024] A first embodiment of the method of manufacturing an aluminum alloy material of the present invention will be described below.

[0025] In the production method of the present embodiment, a molten aluminum alloy is used, which contains Si: 0.3% to 1.2%, Fe: 0.7% to 2.0%, Mn: 0.2% to 0.8%, Zn: 0.1% to 1.0% by mass. %, and the remainder containing Al and unavoidable impurities.

[0026] The composition of aluminum alloy materials

[0027] Next, the numerical limits of the composition of the aluminum alloy material determined in the present embodiment will be described in detail.

[0028] Si: 0.3% to 1.2% (more preferably 0.8% to 1.0%)

[0029] Silicon (Si), which coexists with Mn in the form of an Al-Mn-Si compound, is dispersed in the matrix or forms a solid solution, and has the effect of increasing the strength of the aluminum alloy material.

[0030] The content of Si is preferably 0.3% to 1.2% by mass, more preferably 0.8% to 1.0%.

[0031] When the content of ...

no. 2 approach

[0132] A second embodiment of the method of manufacturing an aluminum alloy material of the present invention will be described below.

[0133] In the production method of the present embodiment, a molten aluminum alloy is used, which contains Si: 0.3% to 1.2%, Fe: 0.05% to less than 0.7%, Mn: more than 0.8% to 2.0%, Zn: 0.5% by mass. %~4.0%, and the rest containing Al and unavoidable impurities.

[0134] The composition of aluminum alloy materials

[0135] Next, the numerical limits of the composition of the aluminum alloy material determined in the present embodiment will be described in detail.

[0136] Si: 0.3% to 1.2% (more preferably 0.4% to 1.2%)

[0137] Silicon (Si), which coexists with Mn in the form of an Al-Mn-Si compound, is dispersed in the matrix or forms a solid solution, and has the effect of increasing the strength of the aluminum alloy material.

[0138] The content of Si is preferably 0.3% to 1.2% by mass, more preferably 0.4% to 1.2%.

[0139] When...

Embodiment A

[0213] The manufacturing method and evaluation test items of the aluminum alloy material of Example A will be described.

[0214] Manufacturing method

[0215] In Example A, an aluminum alloy material was produced using an aluminum alloy having the composition shown in Table 1 under the production conditions shown in Table 2.

[0216] First, molten aluminum alloys obtained by melting aluminum alloys having respective compositional compositions are subjected to treatments such as processes for removing impurities by degassing and using a filter. Subsequently, the molten aluminum alloy was cast into a plate having a width of 1000 mm using a twin-roll continuous casting and rolling mill with a roll body diameter of 600 mm. During the casting process, the figure 1 The flow rate of water in the water-cooled roll 34 shown in controls the rate of solidification.

[0217] Such as figure 1 As shown in the schematic diagram of , an air-cooling fan (air-cooling fan) 32 and a mist s...

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Abstract

A method for producing a high tensile aluminum alloy for an auto heat exchanger, comprising: supplying molten aluminum alloy comprising: Si 0.3% to 1.2%, Fe 0.05% to 0.7%, Mn 0.8% to 2.0%, Zn 0.5% to 4.0%, and other part comprising aluminum and unavoidable impurity according to mass; processing the molten aluminum alloy into plates with thickness 2 to 12mm by continuous casting forging method; and curling the plates immediately; the temperature is 530 deg. C. or even lower of the aluminum alloy material to be curled; in addition, cooling the curled aluminum alloy material with an average cooling speed 15 deg. C / h or even higher, and then developing the aluminum alloy material; in addition, undergoing cold rolling at least two times and annealing at least two times so as to obtain finishedplates with a thickness no more than 0.1mm.

Description

technical field [0001] The present invention relates to a method of manufacturing a high-strength aluminum alloy material for a heat exchanger of an automobile, such as a radiator, an automobile heater, an automobile air conditioner, etc. manufactured mainly by a brazing process High-strength automotive heat exchanger components, and the material has excellent formability and erosion resistance. [0002] This application claims Japanese Patent Application No.2006-344471 filed on December 21, 2006, Japanese Patent Application No.2007-127813 filed on May 14, 2007, Japanese Patent Application No. 2007-127862, Japanese Patent Application No. 2007-291945 filed on November 9, 2007, and Japanese Patent Application No. 2007-291947 filed on November 9, 2007, the contents of which are incorporated herein by reference. Background technique [0003] Recently, heat exchangers made of aluminum alloy materials are widely used in hydraulic equipment or industrial equipment heat exchanger....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22F1/04
Inventor 黑田周麻野雅三
Owner MITSUBISHI ALUMINUM CO LTD
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