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JPS569316A - Manufacture of steel for steel cord - Google Patents

Manufacture of steel for steel cord

Info

Publication number
JPS569316A
JPS569316A JP8235979A JP8235979A JPS569316A JP S569316 A JPS569316 A JP S569316A JP 8235979 A JP8235979 A JP 8235979A JP 8235979 A JP8235979 A JP 8235979A JP S569316 A JPS569316 A JP S569316A
Authority
JP
Japan
Prior art keywords
steel
molten steel
cao
rem
alloy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8235979A
Other languages
Japanese (ja)
Inventor
Masahiro Fukuda
Ryoji Tsujino
Kensuke Shimomura
Kenzo Shinoda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP8235979A priority Critical patent/JPS569316A/en
Publication of JPS569316A publication Critical patent/JPS569316A/en
Pending legal-status Critical Current

Links

Landscapes

  • Treatment Of Steel In Its Molten State (AREA)

Abstract

PURPOSE: To manufacture a steel for steel cord by softening hard inclusions by a procedure in which a CaO-containing flux with an inert gas is blown into molten steel in a ladle for preliminary decarburization and then the molten steel is cast into a casting mold in which an alloy containing one or more of Ca, Mg, and REM is hanged down.
CONSTITUTION: A molten steel with a very small amount of Al2O3-based inclusions is put in a ladle without using Al or Al alloy as deoxidizer, and then a CaO- based flux with an inert gas, e.g., Ar, N2, etc., as a carrier gas is blown into the molten steel, whereupon the molten steel is deoxidized by CaO and its O2 content is lowered to 20W30ppm. Then, the molten steel is cast into a casting mold in which an alloy containng one or two or more of Ca, Mg, and REM is hanged down, where decarburization is further performed by means of Ca, Mg, or REM and a soft inclusion of a low-melting multi-component system consisting of MnO, SiO2, Al2O3, CaO, MgO, etc. is formed. Thus, a wire for steel cord, having a nonductile inclusion index of 20 or les, can be manufactured.
COPYRIGHT: (C)1981,JPO&Japio
JP8235979A 1979-06-29 1979-06-29 Manufacture of steel for steel cord Pending JPS569316A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8235979A JPS569316A (en) 1979-06-29 1979-06-29 Manufacture of steel for steel cord

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8235979A JPS569316A (en) 1979-06-29 1979-06-29 Manufacture of steel for steel cord

Publications (1)

Publication Number Publication Date
JPS569316A true JPS569316A (en) 1981-01-30

Family

ID=13772379

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8235979A Pending JPS569316A (en) 1979-06-29 1979-06-29 Manufacture of steel for steel cord

Country Status (1)

Country Link
JP (1) JPS569316A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6046309A (en) * 1983-08-24 1985-03-13 Kusaka Reametaru Kenkyusho:Kk Modification of steel and modifying agent
EP0829546A4 (en) * 1996-03-25 1999-06-16 Kawasaki Steel Co Process for producing aluminum-killed steel free of cluster
JP2002155312A (en) * 2000-09-06 2002-05-31 Kobe Steel Ltd Method for controlling form of sulfide-based inclusion

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6046309A (en) * 1983-08-24 1985-03-13 Kusaka Reametaru Kenkyusho:Kk Modification of steel and modifying agent
EP0829546A4 (en) * 1996-03-25 1999-06-16 Kawasaki Steel Co Process for producing aluminum-killed steel free of cluster
US6120578A (en) * 1996-03-25 2000-09-19 Kawasaki Steel Corporation Method of producing cluster-free Al-killed steel
JP2002155312A (en) * 2000-09-06 2002-05-31 Kobe Steel Ltd Method for controlling form of sulfide-based inclusion

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