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Iron-copper alloy having high thermal conductivity and method for manufacturing the same

Inactive Publication Date: 2020-02-27
MTA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a new iron-based alloy that can replace existing beryllium-copper alloys. The alloy is a complete molten mixture containing iron and copper. It has high manufacturable, economic efficiency, and thermal conductivity. Additionally, it has excellent mechanical properties, can shield electromagnetic waves, and has soft magnetic properties. The new alloy can be used for various applications such as molding materials, electronic parts, and machine parts.

Problems solved by technology

However, the aluminum alloy has poor mechanical properties in view of strength or abrasion resistance.
However, it is quite difficult to continuously cast the Be—Cu alloy and material costs of beryllium (Be) and copper (Cu) are very high, making a Be—Cu alloy manufacturing process uneconomic.
Hence, the Be—Cu alloy is restrictively used in the manufacture of only premium products due to its high cost, thereby preventing its widespread application for general uses.

Method used

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  • Iron-copper alloy having high thermal conductivity and method for manufacturing the same
  • Iron-copper alloy having high thermal conductivity and method for manufacturing the same
  • Iron-copper alloy having high thermal conductivity and method for manufacturing the same

Examples

Experimental program
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Effect test

example 1

[0065]A ceramic melting furnace containing magnesium as a main component was prepared as a high-frequency inductively heated melting furnace. Thereafter, a porous impurity absorption layer was formed on an inner wall surface and a bottom surface of the prepared melting furnace. The porous impurity absorption layer was formed by coating an absorption layer composition to a thickness of approximately 1 mm, the composition prepared by mixing 65 wt. % of an impurity absorbent, 15 wt. % of a resin, and 30 wt. % of a solvent, based on the total weight of the composition, and then heating at a temperature of approximately 1,150° C. for firing. Here, zirconium silicate (ZrSiO4) and Al powder were used as the impurity absorbent, a butadiene-styrene-alkyl methacrylate copolymer was used as the resin, and isopropyl alcohol was used as the solvent.

[0066]Iron (pure iron having purity of approximately 99.9 wt. %) and electrolytic copper having purity of approximately 99.9 wt. %) were added to the...

examples 2 and 3

[0067]Iron-copper alloy ingots were prepared in substantially the same manner as in Example 1, except that amounts of iron additionally added during dissolution were changed for the purpose of making final alloy compositions (atomic percentages of iron and copper) differ from the alloy composition of Example 1.

examples 4-6

[0080]Iron-copper alloy ingots were prepared in substantially the same manner as in Example 1, except that amounts of iron additionally added during to dissolution were changed for the purpose of making final alloy compositions (atomic percentages of iron and copper) differ from the alloy composition of Example 1. In addition, in Examples 4-6, the iron-copper alloy ingots obtained through casting were granulated in the following manner to prepare powdered iron-copper alloy particles.

[0081]First, iron-copper alloy ingots according to Examples 4-6, which were obtained through casting, were placed in a high-frequency inductively heated melting furnace, and maximum power was applied thereto to perform remelting at a temperature of approximately 1,650° C. Here, the melting furnace was maintained in a vacuum state to prevent oxidation. Next, the remelted casting was granulated by injecting the same into an injection chamber using an injector. Here, the injection chamber was maintained in ...

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Abstract

The present invention provides a high thermal conductivity iron-copper (Fe—Cu) alloy and a method of manufacturing the same. The present invention provides an iron-copper alloy containing 55 to 95 atomic % of iron and 5 to 45 atomic % of copper. The present invention also provides an iron-copper alloy manufacturing method including a first step of preparing a melting furnace; a second step of adding iron and copper to the melting furnace and performing dissolution and molten metal formation so as to contain 55 to 95 atomic % of iron and 5 to 45 atomic % of copper based on the weight of the iron-copper alloy; a third step of stabilizing the molten metal; and a fourth step of pouring the stabilized molten metal into a casting mold and performing casting. The present invention provides an iron-copper alloy that is an iron-based alloy containing iron as a main component and having high thermal conductivity and mechanical properties along with, for example, an electromagnetic-wave shielding property and a soft magnetic property, which can be widely used for metal parts and electronic parts and machine parts.

Description

TECHNICAL FIELD[0001]The present invention relates to a new iron-copper (Fe—Cu) alloy containing iron (Fe) as a main component and an appropriate amount of copper (Cu), which has high thermal conductivity and mechanical properties along with, for example, an electromagnetic-wave shielding property and a soft magnetic property.BACKGROUND ART[0002]Metal-related industries are replacing existing steel materials with lightweight material, such as aluminum (Al) alloys. The aluminum alloys are being widely employed for a variety of uses in many industrial fields owing to their excellent properties, including, for example, lightness in weight, thermal conductivity, corrosion resistance and ductility. The aluminum alloy having high thermal conductivity enables rapid cooling, thereby minimizing distortion or warpage of a molded article. Hence, the aluminum alloy can be useful as a molding material for injection molding or die casting.[0003]For example, techniques of aluminum alloys for die c...

Claims

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Application Information

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IPC IPC(8): C22C45/02C22C33/00B22F1/00B22F9/06B22F1/05
CPCC22C33/003B22F9/06B22F2301/35B22F1/0011C22C45/02B22F2304/10C22C33/00C22C33/04C22C38/16B22F9/08C22C33/0278B22F1/05
Inventor LEE, KWANG CHOONJANG, BOK HYEON
Owner MTA CO LTD
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