JPS57210910A - Production of nodular graphite cast iron and inoculant used therefor - Google Patents

Production of nodular graphite cast iron and inoculant used therefor

Info

Publication number
JPS57210910A
JPS57210910A JP9544481A JP9544481A JPS57210910A JP S57210910 A JPS57210910 A JP S57210910A JP 9544481 A JP9544481 A JP 9544481A JP 9544481 A JP9544481 A JP 9544481A JP S57210910 A JPS57210910 A JP S57210910A
Authority
JP
Japan
Prior art keywords
cast iron
molten metal
elements
molten
nodular 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
JP9544481A
Other languages
Japanese (ja)
Other versions
JPS6128723B2 (en
Inventor
Kazuo Toichi
Komei Tamura
Masahiro Murayama
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.)
DAIWA SEISAKUSHO KK
NIHON FUANDORII SERVICE KK
NIPPON FUANDORII SERVICE KK
TOUYOU DENKA KOGYO KK
Toyo Denka Kogyo Co Ltd
Daiwa Manufacturing Co Ltd
Original Assignee
DAIWA SEISAKUSHO KK
NIHON FUANDORII SERVICE KK
NIPPON FUANDORII SERVICE KK
TOUYOU DENKA KOGYO KK
Toyo Denka Kogyo Co Ltd
Daiwa Manufacturing Co 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 DAIWA SEISAKUSHO KK, NIHON FUANDORII SERVICE KK, NIPPON FUANDORII SERVICE KK, TOUYOU DENKA KOGYO KK, Toyo Denka Kogyo Co Ltd, Daiwa Manufacturing Co Ltd filed Critical DAIWA SEISAKUSHO KK
Priority to JP9544481A priority Critical patent/JPS57210910A/en
Publication of JPS57210910A publication Critical patent/JPS57210910A/en
Publication of JPS6128723B2 publication Critical patent/JPS6128723B2/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 crystallize nodular graphite as cast effectively by adding an inoculant for alloys of iron contg. rare earth metals, Si, Mg and Ca in molten gray cast iron.
CONSTITUTION: An alloy contg., by weight, 5W15% rare earth elements (RE), 40W80% Si, 0.5W2% Mg and 0.1W1.5% Ca and consisting of the balance Fe and unavoidable impurities is added to molten gray cast iron. Since this simply necessitates addition by changing, foundry treatment is easy, reaction time is extremely short, and the reduction in the temp. of the molten metal is reduced. Since no special elements such as Ti remain at the remelting of the return materials, there is no need for strict control of the return materials. Further, the less generation of oxides in the surface of the molten metal after the treatment and the high cleanliness of the molten metal lead to the considerable improvement in fluidity and the reduction in the amt. of addition of fuming elements such as Mg.
COPYRIGHT: (C)1982,JPO&Japio
JP9544481A 1981-06-19 1981-06-19 Production of nodular graphite cast iron and inoculant used therefor Granted JPS57210910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9544481A JPS57210910A (en) 1981-06-19 1981-06-19 Production of nodular graphite cast iron and inoculant used therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9544481A JPS57210910A (en) 1981-06-19 1981-06-19 Production of nodular graphite cast iron and inoculant used therefor

Publications (2)

Publication Number Publication Date
JPS57210910A true JPS57210910A (en) 1982-12-24
JPS6128723B2 JPS6128723B2 (en) 1986-07-02

Family

ID=14137856

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9544481A Granted JPS57210910A (en) 1981-06-19 1981-06-19 Production of nodular graphite cast iron and inoculant used therefor

Country Status (1)

Country Link
JP (1) JPS57210910A (en)

Also Published As

Publication number Publication date
JPS6128723B2 (en) 1986-07-02

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