Aluminium alloy foil for founding and rolling automotive heat radiator fin billet and manufacturing method thereof

A technology for automobile radiators and aluminum alloy foils, which is applied in the manufacture of aluminum alloy foils and the field of aluminum alloy foils for heat exchanger fins, and can solve problems such as not being able to fully meet the specific requirements of foils for automobile radiator fins

Active Publication Date: 2006-12-13
JIANGSU ALCHA ALUMINUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the selection of the chemical composition of the new aluminum alloy foil for fins is very important, and its manufacturing method is an important factor for whether the aluminum alloy foil can meet the performance requirements. At present, the existing radiator aluminum foil materials have a wide range of components. Among them, 3003 aluminum alloy foil is the most commonly used fin material, but none of these materials can fully meet the specific requirements of foil for automotive radiator fins

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 6

[0039] Embodiment 6: the chemical composition ratio of material is:

[0040] Component

iron

silicon

copper

Manganese

zinc

titanium

aluminum

Weight ratio

0.55

0.50

0.04

1.0

1.8

0.015

the remaining

[0041] The manufacturing method of aluminum alloy foil for radiator fins is as follows:

[0042] 1) Casting and rolling of slab:

[0043] Casting area length mm

Front box temperature ℃

Casting speed mm / min

Water temperature ℃

Water pressure MPa

60

690

1000

30

0.6

[0044] 2) Cold rolling of strip:

[0045] The cast-rolled slab is rolled through 8 passes to a predetermined thickness, and the cold working rate from this thickness to the finished product thickness is controlled to 50%. Intermediate annealing is performed at this thickness, the annealing temperature is 380°C, and the holding time is 18 hours. Then go through 1 pa...

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PUM

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Abstract

The invention discloses an aluminum alloy foil used in strand car radiator fin and its manufacturing process, in which the component and the proportion by weight of the foil are: 0.50-0.70 % iron, 0.26-0.54% silicon, 0-0.05 % copper, 1.0-1.3% manganese, 1.4-1.8% zinc, 0.01-0.03% titanium and the other is aluminum. The manufacturing process consists of first casting bar plate, then performing cold reducing working for casting bar plate to prepare foil finished articles. Compared with the current invention, with the same thickness, the product has higher intensity and fine sag resistance under an elevated temperature, by which the fin can not collapse when the car radiator welds under an elevated temperature.

Description

1. Technical field [0001] The invention relates to a heat exchanger material used in an automobile brazing radiator, in particular to an aluminum alloy foil material for heat exchanger fins, and also provides a manufacturing method of the aluminum alloy foil material. 2. Background technology [0002] In recent years, with the rapid development of the automobile industry, because aluminum alloy is superior to copper in terms of price, weight, brazing strength, and corrosion resistance, the automobile industry has produced a change in the replacement of copper radiators with aluminum radiators. Automobile brazed radiators are brazed by pipes and aluminum alloy fins. The conduit is in the shape of a flat cylinder, one side of which is formed by seam welding of a brazing plate with a cladding layer after rolling. The aluminum alloy heat sink is made by machine folding and then drilling heat dissipation holes. Due to the harsh working environment of aluminum foil for automobil...

Claims

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Application Information

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IPC IPC(8): C22C21/10C22C1/03C22C1/06B22D11/16B21B37/00C22F1/053
Inventor 张敏达朱俊明陆凌宏吴永新
Owner JIANGSU ALCHA ALUMINUM CO LTD
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