Title:
含クロム溶鉄の製造方法
Document Type and Number:
Japanese Patent JP6731763
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing chromium-containing molten iron that can reduce the silicon concentration in chromium-containing molten iron and also reduce the chromium concentration in slag upon tapping.SOLUTION: In the method of manufacturing the chromium-containing molten iron according to the present invention, chromium-containing molten iron 2 is manufactured by dissolving a chromium-containing raw material in an electric furnace 1. This method comprises charging a desiliconizing agent containing iron oxide as a main component into the electric furnace 1 after forming slag 3 containing chromium oxide in the electric furnace 1 by melting the chromium-containing raw material.SELECTED DRAWING: Figure 2
Inventors:
Shintaro Tada
Masakazu Mori
Masakazu Mori
Application Number:
JP2016060165A
Publication Date:
July 29, 2020
Filing Date:
March 24, 2016
Export Citation:
Assignee:
Nittetsu Nisshin Steel Co., Ltd.
International Classes:
C21C5/06; C21C1/04; C21C5/54
Domestic Patent References:
| JP2005298834A | ||||
| JP55079818A | ||||
| JP3002311A | ||||
| JP2014091836A |
Attorney, Agent or Firm:
Axis International Patent Business Corporation
Kazuhiro Mitsunaga
Kazuhiro Mitsunaga