Method for fabricating radiating pipes of water tank in car heat exchanger made from aluminum alloy, and dedicated device

Abstract

The invention relates to a machining method and special device for vehicle aluminum alloy heat exchange water tank radiator pipe. It puts the machining radiator pipe between two rollers of special device, which has flux on the surface. The flux would coat equally onto the surface of radiator pipe. The special device includes upper roller and down roller. The down part of driving upper roller drainage wheel and down roller is dipped in stock solution slot containing flux solution. The invention decreases a machining process, shortens machining time, improves producing efficiency, and decreases pollution to environment. The defective fraction of using the method could be under 0.3%. And the surface of the product is smoothing and bright.

Description

technical field [0001] The invention belongs to the field of aluminum alloy heat exchanger water tank processing, in particular to a processing method and special equipment for the heat dissipation pipe of the aluminum alloy heat exchanger water tank of an automobile. Background technique [0002] In the process of processing the aluminum alloy heat exchanger water tank, there must be coating of flux. At present, the coating methods commonly used in various countries in the world are: [0003] 1. Wet processing: The basic method is to blend the flux and water at a certain ratio, soak the workpiece in the agent for a certain period of time, and then take it out for drying and heat welding. [0004] The disadvantages of this processing method are: (1). A large amount of water must be used when coating, and soaking the workpiece in water will inevitably cause water pollution; (2). The workpiece after coating needs to be dried, etc. process, it is bound to consume energy, resul...

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Problems solved by technology

[0004] The disadvantages of this processing method are: (1). A large amount of water must be used when coating, and soaking the workpiece in water will inevitably cause water pollution; (2). The workpiece after coating needs to be dried, etc. process, it is bound to consume energy, resulting in energy waste; (3). The powder has the problem of regular consumption, and the flux cannot be fully utilized, resulting in waste of resources; (4). The defective rate of the products produced by this processing method is relatively low. High, about 1 to 2%, and the surface of the product is not bright, and the observability is poor

[0006] The disadvantages of this processing method are: (1). It is easy to cause air and environmental pollution near the processing equipment; (2). The powder also has the problem of regular consumption, and the powder cannot be fully utilized, resulting in waste of resources; (3). The defect rate of products produced by this processing method is also relatively high, about 0.5 to 1%.

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