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Manufacturing method of aluminum plate-fin heat exchanger

The technology of a plate-fin heat exchanger and its production method is applied in the production field of aluminum plate-fin heat exchangers, which can solve the problem of insufficient compactness of assembled heat exchange cores, single and weak argon arc welding, rough parts preparation and processing, etc. problem, to achieve the effect of argon arc welding firmness, light weight and fine processing

Active Publication Date: 2011-05-11
WUXI FANGSHENG HEAT EXCHANGER MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problems existing in the prior art that the selected raw materials are bulky during the processing of the heat exchanger, the preparation and processing of the parts is rough, the cleaning time is insufficient, the assembly of the heat exchange core is not compact enough, and the vacuum brazing and argon arc welding are single and weak, and provides A manufacturing method of an aluminum plate-fin heat exchanger

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for manufacturing an aluminum plate-fin heat exchanger, the steps are as follows:

[0020] (1) Selection of raw materials: selection of all aluminum alloy materials;

[0021] (2) Parts preparation: Use a mold on the cold press to cold press the aluminum alloy into seals, partitions, fins, heads, cover plates, side plates, groove aluminum, and blocking plates. The cold pressing pressure is controlled at 20MPa. Put the cold-pressed seals, partitions, fins, heads, cover plates, side plates, groove aluminum and blocking plates into the sintering furnace and heat them to 300°C, then cool them into shape, and process them into the required size by machine. The fins are stamped with forming dies on the automatic forming machine tool, and the fins are made into zigzag fins with a pitch of 2 mm. Then, the partition, cover plate and side plate are cut by the shearing machine, and the aluminum sawing machine Cut grooved aluminum, aluminum tubes and heads, and process the...

Embodiment 2

[0027] A method for manufacturing an aluminum plate-fin heat exchanger, the steps are as follows:

[0028] (1) Selection of raw materials: selection of all aluminum alloy materials;

[0029] (2) Parts preparation: Use a mold on the cold press to cold press the aluminum alloy into seals, partitions, fins, heads, cover plates, side plates, groove aluminum, and blocking plates. The cold pressing pressure is controlled at 35MPa. Put the cold-pressed seals, partitions, fins, heads, cover plates, side plates, groove aluminum and blocking plates into the sintering furnace and heat them to 500°C, then cool and form them, and process them into the required size by machine. The fins are stamped with forming dies on the automatic forming machine tool, and the fins are made into porous fins with a pitch of 4mm. Then, the partition, cover plate and side plate are cut by the shearing machine, and the aluminum sawing machine is used to cut the fins. Cut grooved aluminum, aluminum tubes and ...

Embodiment 3

[0035] A method for manufacturing an aluminum plate-fin heat exchanger, the steps are as follows:

[0036] (1) Selection of raw materials: selection of all aluminum alloy materials;

[0037] (2) Parts preparation: Use molds on the cold press to cold press the aluminum alloys into seals, partitions, fins, heads, cover plates, side plates, groove aluminum, and blocking plates. The cold pressing pressure is controlled at 30MPa. Put the cold-pressed seals, partitions, fins, heads, cover plates, side plates, groove aluminum and blocking plates into the sintering furnace and heat them to 400°C, then cool them and form them, and process them into the required size by machine. The fins are stamped with a forming die on an automatic forming machine tool, and the fins are made into corrugated fins with a pitch of 3 mm. Then, the partition, cover plate and side plate are cut by a shearing machine, and the aluminum sawing machine is used to cut the fins. Cut grooved aluminum, aluminum tu...

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Abstract

The invention relates to a manufacturing method of heat exchanger equipment, and discloses a manufacturing method of an aluminum plate-fin heat exchanger. The method comprises the steps of selecting full aluminum alloy material, preparing the parts of a heat exchanger, cleaning elements, assembling a heat exchanging core, vacuum brazing, assembling the complete heat exchanger, and the like. The manufacturing method has the advantages of compact and simple structure, good sealing performance, high temperature and high pressure resistance, low cost, small volume, light weight, low energy consumption, no easy deformation of the middle part of a heat radiating core and centralized stress of welding seam position between a sealing tape and a partition board. The rupture phenomena of the welding seam and the division plate are reduced, and the leakage rate of the heat exchanger in the use process is reduced.

Description

technical field [0001] The invention relates to a manufacturing method of heat exchange equipment, in particular to a manufacturing method of an aluminum plate-fin heat exchanger. Background technique [0002] Most of the heat exchangers now are tube-and-tube, and the cooling tubes are in the form of carbon steel tubes with fins. The cooling tubes have a large spacing, large volume, heavy weight, high cost, and poor heat dissipation. In the process, there are many deficiencies. For example, some high-precision components are processed by ordinary lathes. During the cleaning process, the time is short and the raw materials are poor. Most components are brazed, and the production efficiency is greatly reduced. In argon welding, the head and core The long welds in between are made by hand, which leads to poor forming and uneven welds. In addition, in cold winter areas, during the use of aluminum plate-fin heat exchangers, the temperature difference between the internal medium t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/26
Inventor 丁振红张晓亮章志坚
Owner WUXI FANGSHENG HEAT EXCHANGER MFG
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