JPS57203709A - Method and device for spheroidization of ductile cast iron - Google Patents

Method and device for spheroidization of ductile cast iron

Info

Publication number
JPS57203709A
JPS57203709A JP8857181A JP8857181A JPS57203709A JP S57203709 A JPS57203709 A JP S57203709A JP 8857181 A JP8857181 A JP 8857181A JP 8857181 A JP8857181 A JP 8857181A JP S57203709 A JPS57203709 A JP S57203709A
Authority
JP
Japan
Prior art keywords
tundish
cast iron
ladle
molten iron
graphite
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.)
Granted
Application number
JP8857181A
Other languages
Japanese (ja)
Other versions
JPS6238409B2 (en
Inventor
Shoichi Yoshino
Hiroshi Isaki
Yoshimichi Ogino
Masayuki Horiki
Yoshiaki Tomita
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.)
Kubota Corp
Original Assignee
Kubota 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 Kubota Corp filed Critical Kubota Corp
Priority to JP8857181A priority Critical patent/JPS57203709A/en
Publication of JPS57203709A publication Critical patent/JPS57203709A/en
Publication of JPS6238409B2 publication Critical patent/JPS6238409B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

PURPOSE: To improve the yield of a spheroidizing agent in the stage of producing spheroidal graphite cast iron by a tundish method by injecting molten cast iron in a short time from a tundish into a ladle then closing the charging port of the tundish.
CONSTITUTION: Mg or an Mg alloy as a graphite spheroidizing agent 6 and a coveing agent 7 are put in the recess 5 of a ladle 1 for treatment, and a tundish 2 contg. molten iron 3 is placed thereon. A stopper 8 of a large diameter charging port 4' of the tundish 2 is lifted to charge the whole molten iron 3 into the ladle 1 in a short time and to allow the same to react with the spheroidizing agent, whereby the flake graphite of the molten iron is spheroidized and the sheroidal graphite cast iron is produced. In this case, it is possible to cause spheroidal reaction with less generation of fumes of Mg and in high yields of Mg by closing the port 4' with the stopper 8 immediately after charging of the molten iron from the tundish 2.
COPYRIGHT: (C)1982,JPO&Japio
JP8857181A 1981-06-08 1981-06-08 Method and device for spheroidization of ductile cast iron Granted JPS57203709A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8857181A JPS57203709A (en) 1981-06-08 1981-06-08 Method and device for spheroidization of ductile cast iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8857181A JPS57203709A (en) 1981-06-08 1981-06-08 Method and device for spheroidization of ductile cast iron

Publications (2)

Publication Number Publication Date
JPS57203709A true JPS57203709A (en) 1982-12-14
JPS6238409B2 JPS6238409B2 (en) 1987-08-18

Family

ID=13946547

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8857181A Granted JPS57203709A (en) 1981-06-08 1981-06-08 Method and device for spheroidization of ductile cast iron

Country Status (1)

Country Link
JP (1) JPS57203709A (en)

Also Published As

Publication number Publication date
JPS6238409B2 (en) 1987-08-18

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