JPS5791859A - Centrifugal casting of spheroidal graphite casting - Google Patents

Centrifugal casting of spheroidal graphite casting

Info

Publication number
JPS5791859A
JPS5791859A JP16714580A JP16714580A JPS5791859A JP S5791859 A JPS5791859 A JP S5791859A JP 16714580 A JP16714580 A JP 16714580A JP 16714580 A JP16714580 A JP 16714580A JP S5791859 A JPS5791859 A JP S5791859A
Authority
JP
Japan
Prior art keywords
graphite
layer
cast
cast iron
spheroidization
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
JP16714580A
Other languages
Japanese (ja)
Other versions
JPS5857262B2 (en
Inventor
Yoshihiro Nakagawa
Tamotsu Hashizume
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 JP16714580A priority Critical patent/JPS5857262B2/en
Publication of JPS5791859A publication Critical patent/JPS5791859A/en
Publication of JPS5857262B2 publication Critical patent/JPS5857262B2/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 perform spheroidization of graphite uniformly and satisfactorily over the entire part of the wall thickness in a spheroidal graphite cast iron part by decreasing the residual amt. of Mg of the molten metal for the outside layer part of a cylindrical body and increasing the same of the molten metal for the inside layer in centrifugal casting of the cylindrical body with spheroidal graphite cast iron.
CONSTITUTION: While a metallic mold 6 provided with sand molds 8, 9 for forming roll neck parts in both end parts is rotated, the molten cast iron added with Mg which is a graphite spheroidizing agent is cast in such a way as to make the residual Mg 0.03W0.05% after the graphite spheroidization treatment, whereby an outer layer 10 is centrifugally cast. Next, an Fe-Si-Mg alloy is added to the remaining melt in a ladle 13 to make the residual amt. of Mg to 0.05W0.1%, whereby the 2nd layer 11 is formed on the inner side of the outer layer 10 of the metal mold 6, so that the outside shell layer of uniform graphite spheroidization is formed by both layers 10, 11. Next, the mold 6 is erected still, and the melt of strong and tough cast iron for a core material is cast in one body with the outside shell layer, whereby the composite roll is produced.
COPYRIGHT: (C)1982,JPO&Japio
JP16714580A 1980-11-26 1980-11-26 Spheroidal graphite cast iron centrifugal casting casting Expired JPS5857262B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16714580A JPS5857262B2 (en) 1980-11-26 1980-11-26 Spheroidal graphite cast iron centrifugal casting casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16714580A JPS5857262B2 (en) 1980-11-26 1980-11-26 Spheroidal graphite cast iron centrifugal casting casting

Publications (2)

Publication Number Publication Date
JPS5791859A true JPS5791859A (en) 1982-06-08
JPS5857262B2 JPS5857262B2 (en) 1983-12-19

Family

ID=15844249

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16714580A Expired JPS5857262B2 (en) 1980-11-26 1980-11-26 Spheroidal graphite cast iron centrifugal casting casting

Country Status (1)

Country Link
JP (1) JPS5857262B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104561432A (en) * 2014-12-31 2015-04-29 中钢集团邢台机械轧辊有限公司 Method for producing core part of centrifugal roller by spheroidizing process
KR20190101957A (en) 2016-12-28 2019-09-02 가부시키가이샤 시세이도 Oil-in-water emulsion cosmetic

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60241762A (en) * 1984-05-15 1985-11-30 Mabuchi Motor Co Ltd Small-sized motor
JPH0720353B2 (en) * 1988-11-08 1995-03-06 株式会社東富士製作所 Open / close mechanism drive
JPH04172949A (en) * 1990-11-01 1992-06-19 Mitsubishi Electric Corp Motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104561432A (en) * 2014-12-31 2015-04-29 中钢集团邢台机械轧辊有限公司 Method for producing core part of centrifugal roller by spheroidizing process
KR20190101957A (en) 2016-12-28 2019-09-02 가부시키가이샤 시세이도 Oil-in-water emulsion cosmetic

Also Published As

Publication number Publication date
JPS5857262B2 (en) 1983-12-19

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