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Plate radiator and manufacturing method thereof

A manufacturing method and heat sink technology, applied in manufacturing tools, cooling/ventilation/heating transformation, metal processing equipment, etc., can solve problems such as easy deformation, corrosion of aluminum alloy substrates, and affecting the application of plate heat sinks, and achieve performance improvement. Good corrosion resistance and sealing effect

Inactive Publication Date: 2011-12-21
CRRC DALIAN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But, in the manufacturing method of above-mentioned plate radiator, used solder is for example chloride welding wire etc., and this welding wire has corrosiveness, and after welding, the corrosion resistance of the welding seam between inlet and outlet pipe 12 and base plate 11 is not enough, After a long time, the aluminum alloy substrate will be corroded, which will easily cause the sealing performance of the substrate 11 to decline; and the defects at the weld will further lead to the decline of the mechanical strength, impact resistance and vibration strength of the entire plate radiator. It is easy to deform under alternating cold and hot conditions, which seriously affects the application of plate radiators

Method used

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  • Plate radiator and manufacturing method thereof

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Embodiment 1

[0023] This embodiment provides a method for manufacturing a plate radiator, such as figure 2 as shown, figure 2 It is a schematic flow chart of an embodiment of the manufacturing method of the plate radiator of the present invention. The method can include:

[0024] Step 101, cleaning the substrate and the water inlet and outlet pipes, and drying;

[0025] The substrate in this embodiment may be an aluminum substrate, and the water inlet and outlet pipes may be stainless steel pipes. First, clean the aluminum alloy substrate and stainless steel inlet and outlet pipes. Specifically, it can be soaked in 10% NaOH lye for 5 minutes, and then soaked in 10% HNO 3 Soak in the solution for 5 minutes, and finally rinse with room temperature water repeatedly for more than 3 times. After cleaning, dry it at 100-120°C for 30 minutes and take it out.

[0026] Step 102, assembling the brazing material on the water inlet and outlet pipes, and then assembling the substrate and the wa...

Embodiment 2

[0035] This embodiment provides a plate radiator, which can be manufactured by the manufacturing method described in Embodiment 1.

[0036] Specifically, it may include a base plate and water inlet and outlet pipes. Wherein, the substrate can be an aluminum alloy substrate, the water inlet and outlet pipes can be stainless steel water inlet and outlet pipes, and the substrate is provided with mounting holes for connecting with the water inlet and outlet pipes, and the water inlet and outlet pipes can be connected to the substrate by being installed in the above installation holes.

[0037] In the plate radiator of this embodiment, by using brazing material to weld the base plate and the water inlet and outlet pipes, the weld between the welded water inlet and outlet pipes and the base plate has better corrosion resistance and sealing performance, and also makes the plate radiator more reliable. The overall mechanical strength, impact resistance and vibration strength are impro...

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Abstract

The present invention provides a plate radiator and a manufacturing method thereof, wherein the manufacturing method of the panel radiator includes: step 1, installing brazing materials on the water inlet and outlet pipes, and installing the water inlet and outlet pipes into mounting holes on the base plate , the brazing material is located at the connecting part of the water inlet and outlet pipe and the installation hole; step 2, heating the substrate, so that the substrate heats the brazing material, and the brazing material The connection between the water inlet and outlet pipes and the base plate is realized after melting. In the plate radiator and its manufacturing method of the present invention, by using brazing materials to weld the base plate and the water inlet and outlet pipes, the weld between the welded water inlet and outlet pipes and the base plate has better corrosion resistance and sealing performance, and also makes the plate radiator The overall mechanical strength, impact resistance and vibration strength of the radiator are improved.

Description

technical field [0001] The invention relates to the manufacturing technology of heat exchange equipment, in particular to a plate radiator and a manufacturing method thereof. Background technique [0002] In order to adapt to the leapfrog development of railways, the traction converters of electric locomotives and EMUs are usually water-cooled. Among them, the water-cooled plate radiator has been widely used due to its unique heat exchange structure and small size. It can be used for cooling an insulated gate bipolar power tube (Insulated Gate Bipolar Transistor, abbreviated: IGBT) module of a traction converter of a high-power AC drive electric locomotive. This application has high requirements on the overall mechanical strength, impact and vibration resistance, and the sealing performance of the substrate of the plate radiator. [0003] The structure of the plate radiator in the prior art can refer to figure 1 , figure 1 It is a structural schematic diagram of an embod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K1/00H05K7/20
Inventor 郭丽
Owner CRRC DALIAN INST CO LTD