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Magnesium alloy material and manufacturing method therefor

a technology of alloy materials and manufacturing methods, applied in the field of magnesium alloy materials, to achieve the effect of excellent thermal conductivity

Inactive Publication Date: 2019-06-13
POHANG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is about a magnesium alloy that can handle high heat and has good thermal conductivity. The method for making the alloy is also provided. This material can be useful in applications where heat needs to be removed quickly.

Problems solved by technology

In addition, since the thermal conductivity of the magnesium alloy thin sheet is about 120 W / mK, which is insufficient compared to pure magnesium (155 W / mK), there is still a shortcoming to replace the existing materials in the heat sink market.

Method used

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  • Magnesium alloy material and manufacturing method therefor
  • Magnesium alloy material and manufacturing method therefor
  • Magnesium alloy material and manufacturing method therefor

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Experimental program
Comparison scheme
Effect test

experimental example

l Conductivity

[0123]Then, the thermal conductivities of the prepared Example and Comparative Examples 1 to 4 were compared.

[0124]At this time, the thermal conductivity was measured at 25° C. using a thermal constant measuring apparatus after processing the specimen in the form of a circular disk having a diameter of 10 to 13 mm and a thickness of 2.0 to 3.0 mm.

[0125]The results are as shown in Table 1 below.

TABLE 1No.Thermal Conductivity (W / mK, 25° C.)Example138.51Comparative 1119.98Comparative 286.92Comparative 365.63Comparative 418.75

[0126]As shown in Table 1, the thermal conductivities of Example of the present invention and Comparative Examples 1 to 4, which are commercially available alloys, are shown in comparison.

[0127]As a result, it may be confirmed that Example of the present invention is significantly excellent in thermal conductivity as compared with Comparative Examples 1 to 4.

[0128]More specifically, in the case of Comparative Example 1, a magnesium alloy sheet materia...

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Abstract

Provided is a magnesium alloy material and a method for manufacturing the same. The magnesium alloy material includes: 0.8 to 1.8 wt % of Mn, 0.2 wt % or less (excluding 0 wt %) of Ca and the balance of Mg and inevitable impurities, for a total of 100 wt %. The magnesium alloy material has a recrystallized structure of 99 vol % or more for 100 vol % of the total microstructure of the magnesium alloy material.

Description

TECHNICAL FIELD[0001]An embodiment of the present invention relates to a magnesium alloy material and a method for manufacturing the same.TECHNICAL BACKGROUND[0002]Recently, as the LED industry evolved, the development of high power LED lighting of the tens or even hundreds of watts-class is becoming more active.[0003]As a result, the size and the weight of the heat sinking component for dissipating heat generated by the LED become large, and it is important to solve such a problem.[0004]Since the weight of the heat sinking component is about 80% of the total weight of the LED lighting, the light efficiency of the heat sinking component may be effectively increased by reducing the weight of the heat sinking component.[0005]Therefore, it is necessary to reduce the weight of heat sinking component.[0006]Magnesium has been the subject of lightweight metals in this regard. The density of magnesium is 1.74 g / cm3, and magnesium is classified as the lightest metal among the structural meta...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C22C23/00C22F1/06
CPCC22C23/00C22F1/06B22D11/001B22D11/00B22D11/16C22C1/02
Inventor KIM, SANG HYUNKIM, JAE JOONGKWON, OH DUCK
Owner POHANG IRON & STEEL CO LTD