JPS5492512A - Metal mold for centrifugal casting of cast iron pipe - Google Patents

Metal mold for centrifugal casting of cast iron pipe

Info

Publication number
JPS5492512A
JPS5492512A JP16064777A JP16064777A JPS5492512A JP S5492512 A JPS5492512 A JP S5492512A JP 16064777 A JP16064777 A JP 16064777A JP 16064777 A JP16064777 A JP 16064777A JP S5492512 A JPS5492512 A JP S5492512A
Authority
JP
Japan
Prior art keywords
cast iron
centrifugal casting
mold
metal mold
cracks
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
JP16064777A
Other languages
Japanese (ja)
Other versions
JPS5631865B2 (en
Inventor
Toshiaki Morichika
Yoshiro Murase
Akio Tanaka
Yoshinobu Ohashi
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 JP16064777A priority Critical patent/JPS5492512A/en
Publication of JPS5492512A publication Critical patent/JPS5492512A/en
Publication of JPS5631865B2 publication Critical patent/JPS5631865B2/ja
Granted legal-status Critical Current

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  • Mold Materials And Core Materials (AREA)

Abstract

PURPOSE: To prevent occurence of brittle rupture in a metal mold for centrifugal casting of cast iron pipes due to occurrence of heat cracks by making the mold of cast steel of a specific compsn. followed by hardening and tempering.
CONSTITUTION: A metal mold for centrifugal casting of cast iron pipes is made of steel contg. C; 0.05W0.22%, Si; 0.2W0.8%, Mn; 0.5W1.5%, P<0.04%, S< 0.03%, Ni; 0.05W1.5%, Mo; 0.15W0.6% and V; 0.03W0.12%. By hardening and tempering the mold, occurence of shattered cracks due to repeated thermal impacts is prevented. Accordingly, occurrence of brittle rupture due to propagation of the cracks is also prevented, and hence the endurance life of the mold is elongated.
COPYRIGHT: (C)1979,JPO&Japio
JP16064777A 1977-12-29 1977-12-29 Metal mold for centrifugal casting of cast iron pipe Granted JPS5492512A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16064777A JPS5492512A (en) 1977-12-29 1977-12-29 Metal mold for centrifugal casting of cast iron pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16064777A JPS5492512A (en) 1977-12-29 1977-12-29 Metal mold for centrifugal casting of cast iron pipe

Publications (2)

Publication Number Publication Date
JPS5492512A true JPS5492512A (en) 1979-07-21
JPS5631865B2 JPS5631865B2 (en) 1981-07-24

Family

ID=15719445

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16064777A Granted JPS5492512A (en) 1977-12-29 1977-12-29 Metal mold for centrifugal casting of cast iron pipe

Country Status (1)

Country Link
JP (1) JPS5492512A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6134162A (en) * 1984-07-26 1986-02-18 Kobe Steel Ltd Prehardened steel for metallic die and its manufacture

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6369564U (en) * 1986-10-23 1988-05-10

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6134162A (en) * 1984-07-26 1986-02-18 Kobe Steel Ltd Prehardened steel for metallic die and its manufacture
JPH0148334B2 (en) * 1984-07-26 1989-10-18 Kobe Steel Ltd

Also Published As

Publication number Publication date
JPS5631865B2 (en) 1981-07-24

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