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Brazing aluminum alloy composite plate and production method thereof

A composite plate and aluminum alloy technology, applied to the main board or side plate of the condenser, and the field of aluminum radiators, can solve the problems of low strength, reduced strength, overaging, etc.

Inactive Publication Date: 2013-05-29
GRANGES ALUMINUM SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the alloy is mainly strengthened by aging treatment, and its strength is not high in the natural aging state, and if it is aged by the temperature of the heat exchanger, such as 80 to 120 ° C in the water tank, it is likely to Over-aging occurs, instead of increasing the strength, it reduces it
In addition, because it is a five-layer alloy, its production yield is low and difficult to produce compared to a three-layer alloy

Method used

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  • Brazing aluminum alloy composite plate and production method thereof
  • Brazing aluminum alloy composite plate and production method thereof
  • Brazing aluminum alloy composite plate and production method thereof

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Experimental program
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Embodiment

[0192] The core material, the brazing side alloy and the waterproof side alloy with the compositions shown in Table 1 and Table 2 were respectively prepared into ingots with industrial dimensions by DC casting, and then the obtained ingots were face milled, and then hot-rolled at 500 °C To produce brazed side and waterproof side composite panels with specified thickness. Among them, comparative example B in Table 1 is AA3003 alloy, which has good formability, corrosion resistance and medium strength. <10% by weight waste.

[0193] According to the alloy combinations shown in Table 3, the core material and the clad plates on the brazing side and waterproof side were hot-rolled and rolled at 500°C to make a 5mm metal composite material.

[0194] Then the metal material is cold-rolled to a material with a final plate thickness of 1.5 mm, and annealed at 240° C. or 360° C. for 2 hours, and then air-cooled out of the furnace.

[0195] Next, the plate material produced above was u...

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Abstract

The invention relates to core alloy of a brazing aluminum alloy composite plate, a production method thereof, the brazing aluminum alloy composite plate and a production method of the brazing aluminum alloy composite plate. The core alloy is characterized by basically not containing Cr. The brazing aluminum alloy composite plate is composed of the core alloy, brazing side alloy and waterproof side alloy thereof.

Description

technical field [0001] The invention relates to an aluminum alloy composite plate with more than two layers and a method for producing the aluminum alloy composite plate. The aluminum alloy composite plate is a material for high-strength brazing aluminum radiators, and is especially suitable for main boards or side plates of aluminum radiators and condensers. Background technique [0002] Due to its light weight and high thermal conductivity, aluminum alloys are widely used in automotive heat exchangers, such as radiators, condensers, evaporators, oil coolers, and intercoolers. Automotive heat exchangers are mainly produced by brazing methods, mainly including vacuum brazing and controlled atmosphere brazing. Usually, Al-Si alloy is used as brazing material for brazing, and the brazing temperature is about 600°C. At this time, the brazing material is completely melted, and the joint is metallurgically bonded through the brazing material. [0003] In recent years, with the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C21/02C22C21/08C22C21/16C22C21/18B21B1/38B23P15/00B32B15/01
Inventor 张斌高凤华S·哈勒
Owner GRANGES ALUMINUM SHANGHAI CO LTD