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Production technology of aluminum magnesium alloy rolled sheet tube for air-cooled heat exchanger

An air-cooled, aluminum-magnesium alloy technology, used in metal processing equipment, metal extrusion, manufacturing tools, etc., can solve problems such as cracking and hard material of aluminum tubes

Inactive Publication Date: 2019-01-04
江苏兴业铝材有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Customers with high requirements use 6063 material to make finned tubes. Because the material is relatively hard, most of the aluminum tubes produced by manufacturers will crack in large quantities after rolling.

Method used

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Examples

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Embodiment Construction

[0014] The present invention comprises the following steps:

[0015] S1, homogeneous treatment of aluminum rods; in this way, the homogenization of aluminum alloy elements is achieved;

[0016] S2. Mold design, the depth of the mold welding chamber is deepened;

[0017] S3. Extruding, increasing the tonnage of the extruder; controlling the extrusion speed, the current is controlled at 0.3-0.4A; the extrusion temperature is 470-490°C;

[0018] S4. After the product is formed, it is annealed at a temperature of 390°C-420°C and kept for 1-2 hours;

[0019] S5. Product packaging.

[0020] In S1, the contents of Si and Mg in the aluminum rod are Si: 0.2-0.25, Mg: 0.4-0.45.

[0021] In S2, the depth of the mold welding chamber can be increased to 30mm.

[0022] In S5, after the product is packaged, the product is tightly wrapped with PE stretch film.

[0023] The specific working steps of the present invention are as follows: the raw material aluminum rod is homogenized, Si: 0....

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Abstract

The invention relates to an air cooler, in particular to a production technology of an aluminum magnesium alloy rolled sheet tube for an air-cooled heat exchanger, and provides a production technologyof an aluminum magnesium alloy rolled sheet tube for an air-cooled heat exchanger, which provides convenience for processing, ensures the intensity, and improves the product quality. According to theproduction technology of the aluminum magnesium alloy rolled sheet tube for the air-cooled heat exchanger, the working processes comprise aluminum rod homogenization treatment, mold design, extrusion, annealing, product shaping and packaging; the raw material aluminum rod adopts homogenization treatment, the lower limits of silicon and magnesium are taken, and the prepared product is relatively lower in hardness, and convenient to roll; a mold welding room is as deep as possible, and the welding performance of the product is strengthened; during extrusion, the size of an extruding machine islarger. The production technology of the aluminum magnesium alloy rolled sheet tube for the air-cooled heat exchanger has the advantages that the rolled product cannot crack, the hardness of a fin isgreatly improved compared with the hardness of a product made from pure aluminum, the sheet toppling phenomenon does not exist easily, and the heat dissipation effect is more prominent.

Description

technical field [0001] The invention relates to an air cooler, in particular to a production process for an aluminum-magnesium alloy rolled sheet tube for an air cooler. Background technique [0002] The air cooler uses the environment as the cooling medium and sweeps the outside of the finned tube to cool or condense the high-temperature process fluid in the tube. It is mainly used in petrochemical, food processing and other industries. Our company mainly produces finned tubes in air coolers. At present, most of the finned tubes are made of pure aluminum (1060 / 1070) aluminum tubes. The hardness of the rolled fins is too soft. Customers with high requirements use 6063 material to make finned tubes. Due to the relatively hard material, most aluminum tubes produced by manufacturers crack in large quantities after rolling. Contents of the invention [0003] Aiming at the above problems, the present invention provides a production process for aluminum-magnesium alloy rolled s...

Claims

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Application Information

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IPC IPC(8): B21C23/00B21C31/00C22F1/047
CPCB21C23/00B21C31/00C22F1/047
Inventor 周健周蛇山
Owner 江苏兴业铝材有限公司
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