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Composite brazing aluminum foil material for automobile radiator and manufacturing method thereof

A technology of automobile radiator and manufacturing method, which is applied in chemical instruments and methods, metal rolling, layered products, etc., can solve problems such as failure to meet collapse resistance, and achieve improved heat resistance, less cracking, and improved corrosion resistance. sexual effect

Inactive Publication Date: 2011-12-21
南通华特铝热传输材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because in recent years, in order to meet the needs of lightweight vehicles, miniaturization of components, and reduction of material costs, the thickness of the aluminum foil of the material is decreasing. The thickness of the current market can only be 0.08mm, and less than 0.08mm cannot meet the requirements of anti-corrosion. Collapsibility

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The chemical composition mass ratio of the core material is: 0.68% silicon, 0.20% iron, 0.30% copper, 1.15% manganese, 0.010% chromium, 0.15% titanium and the rest is aluminum. Put the industrial pure aluminum ingot (AL99.70A) for remelting into the melting furnace and raise the temperature to 740℃~760℃ to melt and stir. After removing the slag, add iron, copper, manganese, chromium and titanium according to the above ratio After stirring, refining, and adjusting the composition, the agent enters the static furnace. After degassing and slag removal, it is cast at 720°C to 740°C, and then cast into a hot-rolled ingot. The ingot is sawed and milled to form a core. After surface treatment, the core body is covered with a layer of AA4343 composite boards on the upper and lower sides. The thickness of the composite boards accounts for 10% of the total thickness. It is heated to 520°C to 540°C and kept for 10 hours before hot rolling to obtain hot-rolled slabs. The hot-rolled...

Embodiment 2

[0013] The chemical composition mass ratio of the core material is: 0.68% silicon, 0.25% iron, 0.35% copper, 1.25% manganese, 0.020% chromium, 0.18% titanium, and the rest is aluminum. Put the industrial pure aluminum ingot (AL99.70A) for remelting into the melting furnace and raise the temperature to 740℃~760℃ to melt and stir. After removing the slag, add iron, copper, manganese, chromium and titanium according to the above ratio After stirring, refining, and adjusting the composition, the agent enters the static furnace. After degassing and slag removal, it is cast at 720°C to 740°C, and then cast into a hot-rolled ingot. The ingot is sawed and milled to form a core. After surface treatment, the core body is covered with a layer of AA4343 composite boards on the upper and lower sides. The thickness of the composite boards accounts for 10% of the total thickness. It is heated to 520°C to 540°C and kept for 10 hours before hot rolling to obtain hot-rolled slabs. The hot-rolle...

Embodiment 3

[0015] The chemical composition mass ratio of the core material is: 0.75% silicon, 0.25% iron, 0.35% copper, 1.35% manganese, 0.028% chromium, 0.20% titanium, and the rest is aluminum. Put the industrial pure aluminum ingot (AL99.70A) for remelting into the melting furnace and raise the temperature to 740℃~760℃ to melt and stir. After removing the slag, add iron, copper, manganese, chromium and titanium according to the above ratio After stirring, refining, and adjusting the composition, the agent enters the static furnace. After degassing and slag removal, it is cast at 720°C to 740°C, and then cast into a hot-rolled ingot. The ingot is sawed and milled to form a core. After surface treatment, the core body is covered with a layer of AA4343 composite boards on the upper and lower sides. The thickness of the composite boards accounts for 10% of the total thickness. It is heated to 520°C to 540°C and kept for 10 hours before hot rolling to obtain hot-rolled slabs. The hot-rolle...

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Abstract

A composite brazing aluminum foil material for an automobile radiator and a method for producing the material, the core layer of which is composed of: 0.5-0.8% of silicon, 0.20-0.30% of iron, 0.30-0.40% of copper, 1.0-1.8% of manganese, and 0.005-0.005% of chromium 0.035%, titanium 0.12-0.20%, the rest is aluminum. The production method is characterized in that: After melting the industrial pure aluminum ingot (Al99.70A) for remelting, add iron, copper, manganese, chromium and titanium in the above ratio, heat to 740°C-760°C, stir , to make the composition uniform, let stand after removing slag, cast at 720°C ~ 740°C, and then cast into an ingot. Aluminum-silicon type brazing material (AA4343 or AA4045 alloy), heated to 520°C-540°C after being fixed, kept for 10 hours, and then hot-rolled to obtain hot-rolled coils, which were then cold-rolled.

Description

technical field [0001] The invention relates to an aluminum alloy composite material used for a radiator and a method for producing the material, in particular to a composite brazing aluminum foil material for an automobile radiator and a method for producing the material. Background technique [0002] At present, the heat dissipation fins of the core material of automobile radiators in my country mainly use composite brazed aluminum foil, and the modified composite material is composed of aluminum alloy covered with aluminum-silicon type brazing materials on both sides. The working environment of aluminum foil for automobile radiator is relatively harsh, so it is required to have good corrosion resistance and collapse resistance. Because in recent years, in order to meet the needs of lightweight vehicles, miniaturization of parts, and reduction of material costs, the thickness of the aluminum foil of the material is decreasing. The thickness of the current market is general...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/01B21B1/40
Inventor 刘成荣
Owner 南通华特铝热传输材料有限公司
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