JPS54104416A - Manufacture of ductile cast iron - Google Patents

Manufacture of ductile cast iron

Info

Publication number
JPS54104416A
JPS54104416A JP1211478A JP1211478A JPS54104416A JP S54104416 A JPS54104416 A JP S54104416A JP 1211478 A JP1211478 A JP 1211478A JP 1211478 A JP1211478 A JP 1211478A JP S54104416 A JPS54104416 A JP S54104416A
Authority
JP
Japan
Prior art keywords
cast iron
amt
metal
agent
sprue
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
JP1211478A
Other languages
Japanese (ja)
Other versions
JPS5810966B2 (en
Inventor
Masanori Tanaka
Kazuo Usui
Shusaku Taniguchi
Takayoshi Tanaka
Masahiro Misori
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.)
Kawasaki Heavy Industries Ltd
Original Assignee
Kawasaki Heavy Industries Ltd
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 Kawasaki Heavy Industries Ltd filed Critical Kawasaki Heavy Industries Ltd
Priority to JP53012114A priority Critical patent/JPS5810966B2/en
Publication of JPS54104416A publication Critical patent/JPS54104416A/en
Publication of JPS5810966B2 publication Critical patent/JPS5810966B2/en
Expired 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 manufacture ductile cast iron of a desired compsn. with a small amt. of a spheroidizing agent by spheroidizing graphite in untreated gray cast iron with the agent charged onto the sprue bottom of an ingot case when the gray cast iron is introduced into the case through a rising runner.
CONSTITUTION: Spheroidizing agent 9 is charged onto sprue bottom 5 of ingot case 1 in an amt. of about 1% to the amt. of molten metal to be poured. Molten metal 7 is poured into sprue 4 from ladle 8. Metal 7 melts agent 9 on bottom 5, and they are advancingly mixed and stirred with turbulence formed in accordance with the interrelation between fluidity resistance and flowing speed when they rise through runner 6. Thus, graphite flakes in metal 7 are converted into spheroidal graphite of a uniform compsn. in a short time, and metal 7 flows into cavities 2 through weirs 3 and is slowly cooled. By this method gray cast iron contg. a large amt. of S can be cast into ductile steel of a desired compsn. without carrying out any special desulfurization.
COPYRIGHT: (C)1979,JPO&Japio
JP53012114A 1978-02-06 1978-02-06 Manufacturing method of ductile cast iron Expired JPS5810966B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53012114A JPS5810966B2 (en) 1978-02-06 1978-02-06 Manufacturing method of ductile cast iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53012114A JPS5810966B2 (en) 1978-02-06 1978-02-06 Manufacturing method of ductile cast iron

Publications (2)

Publication Number Publication Date
JPS54104416A true JPS54104416A (en) 1979-08-16
JPS5810966B2 JPS5810966B2 (en) 1983-02-28

Family

ID=11796526

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53012114A Expired JPS5810966B2 (en) 1978-02-06 1978-02-06 Manufacturing method of ductile cast iron

Country Status (1)

Country Link
JP (1) JPS5810966B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4977818A (en) * 1972-11-01 1974-07-26
JPS5027711A (en) * 1973-05-28 1975-03-22

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4977818A (en) * 1972-11-01 1974-07-26
JPS5027711A (en) * 1973-05-28 1975-03-22

Also Published As

Publication number Publication date
JPS5810966B2 (en) 1983-02-28

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