Aluminium alloy foil and its producing method

A technology of aluminum alloy foil and aluminum foil, applied in the direction of metal rolling, etc., can solve problems such as rewinding, and achieve the effects of improving fluidity, increasing welding strength, and avoiding deformation.

Inactive Publication Date: 2004-02-11
沈健生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the phenome...

Method used

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Embodiment Construction

[0041] Below in conjunction with embodiment the present invention is described in further detail:

[0042] first embodiment

[0043] First select 0.4 parts of iron, 0.8 parts of silicon, 1.7 parts of manganese, 1.5 parts of zinc, 0.01 parts of copper, 0.03 parts of magnesium, 0.10 parts of zirconium and 0.15 parts of titanium for use.

[0044] Then, smelt

[0045] Put iron, silicon, manganese, zinc, copper, magnesium, zirconium and titanium into the reverberatory flame furnace and heat to 750°C to melt these raw materials; after that, add a degasser for refining; said degasser It is made according to the ratio of potassium chloride: sodium chloride = 1:1.

[0046] After that, cast

[0047] The above molten metal was cast into an ingot at a temperature of 700° C. at a speed of 80 mm / min.

[0048] After that, homogenize

[0049] The above-mentioned billet was put into an electric furnace at a temperature of 580° C., and kept at a constant temperature for 28 hours for homoge...

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PUM

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Abstract

The present invention discloses a kind of aluminum alloy foil for heat exchanger of air conditioner, cooler, heater unit, radiator, etc. in automobile and its production process. The aluminum alloy foil is produced with Al, Fe, Si, Mn, Zn, Cu, Mg, Zr and Ti, and through smelting, casting, homogenizing, cutting, milling, heating, rolling, annealing, finish rolling and other steps. The aluminum alloy foil thus produced has no deformation, subsidence and collapse.

Description

(1) Technical field [0001] The invention relates to an aluminum foil and a production method thereof. Specifically, it is an aluminum alloy foil for heat exchangers such as automobile air conditioners, intercoolers, heaters, and water tanks, and a production method thereof. (2) Background technology [0002] At present, the aluminum alloy foil used in heat exchangers such as automotive air conditioners, intercoolers, heaters and water tanks is mainly 3003 or 3A21 aluminum foil. The former is made of raw materials such as silicon, iron, copper and manganese, and the latter is made of raw materials such as silicon, iron, copper, manganese and titanium. Since these two aluminum foils have no anodic protection, the pitting corrosion of the aluminum foil will be increased during brazing. Therefore, these two grades of aluminum foil are prone to deformation and collapse during brazing. [0003] And because the melting points of these two grades of aluminum foil are very low, th...

Claims

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Application Information

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IPC IPC(8): B21B1/40C22C21/00
Inventor 沈健生李振芳
Owner 沈健生
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