Die-casting die of 3D columnar fin type radiator and its die-casting method

A technology for die-casting molds and radiators, which is applied in the field of manufacturing methods and the molds used, can solve the problems that are not suitable for the processing of columnar radiators, and achieve the effects of fast connection speed, elimination of gaps, and low cost

Inactive Publication Date: 2003-12-24
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this method is not suitable for the processing of columnar radiators

Method used

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  • Die-casting die of 3D columnar fin type radiator and its die-casting method
  • Die-casting die of 3D columnar fin type radiator and its die-casting method
  • Die-casting die of 3D columnar fin type radiator and its die-casting method

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Experimental program
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Effect test

Embodiment Construction

[0035] The die-casting three-dimensional finned columnar radiator includes the following steps:

[0036] (1) Insert the three-dimensional finned column into the figure 1 In the molding die 6 of the shown die-casting mold, and keep it can be plugged freely in the model;

[0037] (2) metal powder is filled in the cavity of molding die 6;

[0038] (3) Drive the ejector pin 1 to press down through the hydraulic press, and the pressure is 5MPa to realize the die-casting connection of the CPU radiator;

[0039] (4) Heating the molding die 6 after die-casting, the temperature is controlled at 1000° C. to sinter the metal powder inside;

[0040] (5) The three-dimensional finned columnar radiator is demoulded from the molding die 6, and finally polished and trimmed.

[0041] The three-dimensional finned columnar heat sink structure is demoulded, such as figure 2 As shown, several three-position finned columns 3 are casted between the fan 8 and the base plate 2 ′.

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Abstract

A method for die casting of 3D finned column type heat radiator features that the die casting method of powder is used to connect a 3D finned column with the powdered base plate material to form a heat radiator. Its die has a shaping membrane on the baseplate for installing the 3D finned column in it, a middle sleeve surrounding said shaping membrane, a supporting rod installed to the 3D finned column, and a guide sleeve of said supporting rod. The metallic powder used for baseplate is filled between said supporting rod and 3D finned column in internal cavity of said shaping membrane.

Description

technical field [0001] The invention relates to the technical field of special forming and connection processing technology for mechanical manufacturing of metal materials, and specifically refers to a manufacturing method of a three-dimensional finned columnar radiator for a central processing unit of a computer and a mold used therefor. Background technique [0002] At present, the frequency of the central processing unit of the personal computer is getting higher and higher, and the calorific value is also increased thereupon. When the main frequency of the central processing unit exceeds 1GHz, the heat generation is very considerable. And the main frequency of Intel Pentium4 central processing unit has exceeded GHz at present, therefore, heat dissipation has become a key problem of computer system. [0003] The heat sink is the key to effectively reduce the operating temperature of the CPU. So far, various CPU heat sink manufacturing methods have been developed. Inclu...

Claims

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Application Information

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IPC IPC(8): B22D17/22
Inventor 汤勇邱诚刘崴万珍平刘亚俊
Owner SOUTH CHINA UNIV OF TECH
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