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High-corrosion-resistance four-layer aluminum alloy brazing plate and manufacturing method thereof

An aluminum alloy, high corrosion resistance technology, applied in the direction of manufacturing tools, welding/cutting media/materials, welding media, etc., can solve the problem of low corrosion resistance and achieve good mechanical properties

Inactive Publication Date: 2016-10-26
JIANGSU ALCHA ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the prior art above, the purpose of the present invention is to provide a four-layer aluminum alloy brazing sheet with high corrosion resistance to solve the problem of low corrosion resistance of the three-layer composite aluminum alloy material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] High corrosion-resistant four-layer aluminum alloy brazing sheet, which is formed by welding and hot-rolling the first cladding layer, interlayer, core layer and second cladding layer stacked in sequence, the first cladding layer and the second cladding layer The cladding layer is AA4343 aluminum alloy, the interlayer is AA3003 aluminum alloy, and the core layer is MOD3Z23 aluminum alloy. The thickness of the first cladding layer accounts for 6% of the total thickness of the plate, the thickness of the second cladding layer accounts for 6% of the total thickness of the plate, and the thickness of the interlayer accounts for 6% of the total thickness of the plate. Total Thickness 8%

[0021] The MOD3Z23 aluminum alloy is composed of the following components in mass percentage: 0.2% iron, 0.2% silicon, 0.4% copper, 1.4% manganese, 0.1% titanium, and the rest is aluminum.

[0022] The AA4343 aluminum alloy is composed of the following components in mass percentage: 0.25% i...

Embodiment 2

[0035] High corrosion-resistant four-layer aluminum alloy brazing sheet, which is formed by welding and hot-rolling the first cladding layer, interlayer, core layer and second cladding layer stacked in sequence, the first cladding layer and the second cladding layer The cladding layer is AA4343 aluminum alloy, the interlayer is AA3003 aluminum alloy, and the core layer is MOD3Z23 aluminum alloy. The thickness of the first cladding layer accounts for 7% of the total thickness of the plate, the thickness of the second cladding layer accounts for 7% of the total thickness of the plate, and the thickness of the interlayer accounts for 7% of the total thickness of the plate. 10% of total thickness

[0036] The MOD3Z23 aluminum alloy is composed of the following components in mass percentage: 0.3% iron, 0.2% silicon, 0.5% copper, 1.6% manganese, 0.2% titanium, and the rest is aluminum.

[0037] The AA4343 aluminum alloy is composed of the following components in mass percentage: 0.2...

Embodiment 3

[0050] High corrosion-resistant four-layer aluminum alloy brazing sheet, which is formed by welding and hot-rolling the first cladding layer, interlayer, core layer and second cladding layer stacked in sequence, the first cladding layer and the second cladding layer The cladding layer is AA4343 aluminum alloy, the interlayer is AA3003 aluminum alloy, and the core layer is MOD3Z23 aluminum alloy. The thickness of the first cladding layer accounts for 8% of the total thickness of the plate, the thickness of the second cladding layer accounts for 8% of the total thickness of the plate, and the thickness of the interlayer accounts for 8% of the total thickness of the plate. Total Thickness 12%

[0051] The MOD3Z23 aluminum alloy is composed of the following components in mass percentage: 0.3% iron, 0.2% silicon, 0.5% copper, 1.6% manganese, 0.2% titanium, and the rest is aluminum.

[0052] The AA4343 aluminum alloy is composed of the following components in mass percentage: 0.22% ...

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Abstract

The invention discloses a high-corrosion-resistance four-layer aluminum alloy brazing plate. The high-corrosion-resistance four-layer aluminum alloy brazing plate is formed by hotly rolling a first cladding layer, a sandwich layer, a core layer and a second cladding layer, overlapped in sequence, after welding; the first cladding layer and the second cladding layer are AA4343 aluminum alloys; the sandwich layer is an AA3003 aluminum alloy; the core layer is a MOD3Z23 aluminum alloy; and the MOD3Z23 aluminum alloy comprises the following components in percentage by mass: 0.2-0.3% of iron, silicon not more than 0.2%, 0.4-0.5% of copper, 1.4-1.6% of manganese, 0.1-0.2% of titanium, and the balance of aluminum. The invention further discloses a manufacturing method of the four-layer aluminum alloy brazing plate. The four-layer aluminum alloy brazing plate obviously improves the corrosion resistance compared with a three-layer composite aluminum alloy brazing plate, and is excellent in mechanical performance.

Description

technical field [0001] The invention relates to an aluminum alloy brazing sheet and a manufacturing method thereof, in particular to a highly corrosion-resistant four-layer aluminum alloy brazing sheet and a manufacturing method thereof. Background technique [0002] Automotive heat exchangers are subject to pollution from rainwater, salt volatilized from the road surface, exhaust gas from vehicles, sand, dust and mud, etc., and are also subjected to repeated cold and hot cycles and periodic vibrations. The working conditions and working environment are harsh. Therefore, the corrosion resistance of aluminum heat exchangers during use is a problem that cannot be ignored. This requires that the aluminum composite materials used in the heat exchanger system have good corrosion resistance, so as to ensure the service life of the automotive heat exchanger. [0003] At present, the brazed aluminum alloys used in automobile heat exchangers in my country are mostly two-layer or thr...

Claims

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Application Information

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IPC IPC(8): B23K35/28B23K35/40
CPCB23K35/286B23K35/40B23K2103/10
Inventor 张全成袁婷薛山章建华王康陈义文陈雅萱王杰
Owner JIANGSU ALCHA ALUMINUM
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