Preparation method of radiator containing complex variable cross-section hole channel

A technology of variable cross-section and heat sink, which is applied to heat exchange equipment, rotors, cylinders, etc., can solve the problems of thermal shock deformation, low heat dissipation efficiency, and loose connection, etc., to avoid thermal shock deformation, good heat dissipation effect, and interface bonding high intensity effect

Pending Publication Date: 2021-12-31
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a preparation method for radiators with complex variable cross-section channels. The production process is simple, the price of raw materials is low, the utilization rate is high, the production cycle is short, and the product processing cost is low. High-efficiency heat dissipation requirements for power devices, avoiding melting or thermal shock deformation of complex variable-section tubes during the casting process, and low heat dissipation efficiency due to incomplete bonding of composite interfaces between complex variable-section tubes and alloys used in radiators

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Using ZL101A aluminum alloy as raw material, the ZL101A aluminum alloy complex variable cross-section tube composed of round tube and flat tube with a wall thickness of 1 mm was prepared by 3D printing method, and the shape, size and design of each part of the ZL101A aluminum alloy complex variable cross-section tube The shape and size of each part of the complex variable cross-section channel inside the ZL101A aluminum alloy radiator are the same;

[0028] Block the inlet and outlet of both ends of the ZL101A aluminum alloy complex variable section tube, then put the ZL101A aluminum alloy complex variable section tube into the mold, and use the positioning device to position it, the entrance and exit of the two ends of the ZL101A aluminum alloy complex variable section tube are exposed on the outside of the mold;

[0029] Start casting, pour ZL101A aluminum alloy liquid, make the ZL101A aluminum alloy liquid fill the mold and wrap the ZL101A aluminum alloy complex vari...

Embodiment 2

[0032] Using 6061 aluminum alloy as the raw material, the 6061 aluminum alloy complex variable cross-section tube with a wall thickness of 2 mm composed of round tubes, elliptical tubes and rhombic tubes was prepared by welding and forming methods with different sizes of tubes, and the inner parts of the 6061 aluminum alloy complex variable cross-section tubes The shape and size are the same as the shape and size of each part of the complex variable cross-section channel inside the designed ZL305 aluminum alloy radiator;

[0033] Add quartz sand to the 6061 aluminum alloy complex variable section tube, then block the inlet and outlet at both ends of the 6061 aluminum alloy complex variable section tube, then put the 6061 aluminum alloy complex variable section tube into the mold, and use the positioning device to position it , the inlet and outlet at both ends of the 6061 aluminum alloy complex variable-section tube are exposed outside the mold;

[0034] Start casting, pour ZL...

Embodiment 3

[0037] Using 1060 pure aluminum as the raw material, the 1060 pure aluminum complex variable-section tube with a wall thickness of 0.5mm composed of circular tubes, elliptical tubes and special-shaped tubes is prepared by the circular tube hydroforming method, and the inner parts of the 1060 pure aluminum complex variable-section tube The shape and size are the same as the shape and size of each part of the complex variable cross-section channel inside the designed A357 aluminum alloy radiator; then the solid-liquid composite casting method is used to coat a layer of thickness on the surface of the 1060 pure aluminum complex variable cross-section tube The A357 aluminum alloy support layer is 2mm to ensure that the composite interface between the 1060 pure aluminum complex variable-section tube and the solidified A357 aluminum alloy is a metallurgical bond with high interfacial bonding strength, and the thick-walled 1060 aluminum alloy with the A357 aluminum alloy as the support...

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Abstract

The invention discloses a preparation method of a radiator containing a complex variable cross-section hole channel, and belongs to the technical field of manufacturing of electronic component radiators. According to the method, alloy used by the radiator is used as a raw material, a complex variable-cross-section pipe is prepared in advance, the shape and size of each part in the complex variable-cross-section pipe are the same as those of each part in a hole of the complex variable-cross-section hole channel in the radiator, and then the complex variable-cross-section pipe is placed into a casting mold to be positioned and fixed; and after poured alloy liquid is solidified, the complex variable-cross-section pipe and the alloy are tightly combined, an integrated casting is formed, and the radiator containing the complex variable-cross-section hole channel is obtained. Compared with a traditional preparation method of the radiator containing the complex variable cross-section hole channel, the method is simple in preparation process, short in production period, high in material utilization rate and low in production cost, and the prepared radiator is high in hole channel size precision and mechanical property, good in heat dissipation effect, long in service life, suitable for mass production and high in application and popularization value.

Description

technical field [0001] The invention belongs to the technical field of radiator manufacturing for electronic components, and in particular relates to a method for preparing a radiator with complex variable cross-section channels. Background technique [0002] High-power devices consume a lot of heat during operation and will generate a lot of heat. Cooling and heat dissipation measures must be taken to spread the heat to the surrounding space in time. Otherwise, the service life of the device will be shortened, it will not work normally or it will be damaged due to the high temperature of the device. . At present, a heat sink with internal channels is generally used to achieve this purpose, and a better heat dissipation effect is achieved by circulating a cooling medium in the channels. [0003] In recent years, with the continuous improvement of the performance of high-power devices, the requirements for heat dissipation have gradually increased, making the structure of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D19/00
CPCB22D19/00B22D19/0081
Inventor 刘雪峰张利
Owner UNIV OF SCI & TECH BEIJING
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