Magnesium alloy radiator and mfg. method thereof

The technology of a heat sink and its manufacturing method, which is applied in the field of magnesium alloy heat sink and its manufacturing, can solve the problems of large specificity and low comprehensive heat dissipation capacity of aluminum alloy heat sink, and achieve the effect of light weight and good heat dissipation

Inactive Publication Date: 2003-03-12
SHENYANG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of the existing aluminum alloy radiator fins with large specificity and low comprehensiv

Method used

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Embodiment Construction

[0007] As mentioned above, a semi-continuous cast ingot of magnesium alloy is first prepared, its composition is: Mg88%, Al9%, Zn0.5%, Mn0.2%, RE2%, other composition requirements meet the content of the invention The stated range of ingredients. The diameter of the semi-continuous cast ingot is 100 mm, which is cut into a length of 400 mm and used as an extruded ingot for the next step of production. For the alloy of this composition, the extrusion parameters are: extrusion temperature 300 degrees, extrusion cylinder temperature 220 degrees, exit speed 5 m / min, extrusion ratio 80:1. The extruded profile semi-finished product can then be cut and processed to complete the production of magnesium alloy radiator fins.

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PUM

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Abstract

A Mg-alloy radiator contains Mg (more than 85.6%), Al (2.5-9.7 %), Zn (0.2-1.0%), Mn (0.1-0.3%), Si (0-0.1%), Fe (0-0.005%), Cu (0-0.3%), Ni (0-0.002%), RE (1.5-3.0%) and impurities (0-0.002%). It is made up of Mg-alloy ingot through heating it to 250-400 deg.C and extruding out at 200-250 deg.C, 2-8m/min and 150-210 MPa. Its advantages are light weight and high heat radiating power.

Description

Technical field [0001] The invention belongs to a radiator fin, in particular to a magnesium alloy radiator fin and a manufacturing method thereof. Background technique [0002] At present, a large number of radiator fins are made of aluminum alloy, and the proportion of aluminum alloy is one-third larger than that of magnesium alloy. In occasions that require high lightweight, such as air-cooled heat sinks for computer CPUs and graphics cards, aluminum alloy heat sinks are relatively bulky. In addition, the comprehensive heat dissipation capacity of aluminum alloys is not as good as that of magnesium alloys. Therefore, this product The invention proposes to use high thermal conductivity magnesium alloy instead of aluminum alloy to make radiator fins. Contents of the invention [0003] Aiming at the problems of the existing aluminum alloy radiator fins with large specificity and low comprehensive heat dissipation capacity, the invention provides a magnesium alloy radiator...

Claims

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Application Information

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IPC IPC(8): B21C23/10C22C23/00
Inventor 刘正王长义李锋张奎计海涛臧镜淳
Owner SHENYANG POLYTECHNIC UNIV
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