Method for manufacturing amorphous alloy by using liquid pig iron

Patent metadata

Field	Value
Publication number	US-9963768-B2
Application number	US-200913142916-A
Country	US
Kind code	B2
Filing date	Dec 28, 2009
Priority date	Dec 30, 2008
Publication date	May 8, 2018
Grant date	May 8, 2018

Abstract

A method for manufacturing an amorphous alloy by using liquid pig iron is described. An exemplary embodiment provides a method for manufacturing an amorphous alloy, including providing liquid pig iron, adding an alloy material to the liquid pig iron, and solidifying the liquid pig iron.

First claim

What is claimed is:

1. A method for manufacturing an amorphous alloy, comprising:
tapping liquid pig iron that is provided directly from an iron-making apparatus in its liquid form into a vessel;
adding an alloy material to the liquid pig iron during tapping;
reducing a carbon concentration of the liquid pig iron after the addition of the alloy material; and
solidifying the alloyed liquid pig iron,
wherein the alloy material is at least one material selected from the group consisting of Fe—Si, Fe—P, Fe—B, an oxide, a nitride, and a sulfide and the carbon concentration is reduced by the addition of a material selected from the group consisting of iron oxide, manganese oxide, low carbon scrap, and deoxidized ingot steel.

2. The method of claim 1 , wherein reducing the carbon concentration of the liquid pig iron is performed in a desulfurization process or in any one of a metal mixer, an electric furnace, and a converter.

3. The method of claim 1 , wherein after adding the alloy material and before solidifying the alloyed liquid pig iron the temperature of the liquid pig iron is increased.

4. The method of claim 3 , wherein after increasing the temperature, a composition of the liquid pig iron is controlled.

5. The method of claim 4 , wherein the composition of the liquid pig iron is controlled by adding additional alloy material to the already alloyed liquid pig iron.

6. The method of claim 1 , wherein solidifying of the liquid pig iron includes a powder manufacturing process.

7. The method of claim 1 , wherein solidifying of the liquid pig iron includes a fiber manufacturing process.

Assignees

• Yi Sang Ho
• Choi Seung Dueg
• Yi Seong Hoon
• Posco

Inventors

• Yi Sang-Ho
• Choi Seung Dueg
• Yi Seong Hoon

Classifications

• B22F3/00

  Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor {; Presses and furnaces} · CPC title

• C22C45/02 Primary

  with iron as the major constituent · CPC title

• C22C33/003

  making amorphous alloys · CPC title

• C22C1/02

  by melting {(C22C1/1036 takes precedence)} · CPC title

• C22C1/00 Primary

  Making non-ferrous alloys (by electrothermic methods C22B4/00; by electrolysis C25C1/24, C25C3/36) · CPC title