JPS5528337A - Manufacture of composite roll - Google Patents

Manufacture of composite roll

Info

Publication number
JPS5528337A
JPS5528337A JP10069978A JP10069978A JPS5528337A JP S5528337 A JPS5528337 A JP S5528337A JP 10069978 A JP10069978 A JP 10069978A JP 10069978 A JP10069978 A JP 10069978A JP S5528337 A JPS5528337 A JP S5528337A
Authority
JP
Japan
Prior art keywords
roll
outer shell
shell
manufacture
composite roll
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.)
Pending
Application number
JP10069978A
Other languages
Japanese (ja)
Inventor
Masahiro Fukuda
Masayuki Kato
Koji Yamaji
Akitoshi Okabayashi
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 JP10069978A priority Critical patent/JPS5528337A/en
Publication of JPS5528337A publication Critical patent/JPS5528337A/en
Pending legal-status Critical Current

Links

Landscapes

  • Rolls And Other Rotary Bodies (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

PURPOSE: To prevent a composite roll from cracking owing to flattening of graphite, in manufacture of the roll consisting of an Adamite material outer shell and a nodular graphite cast iron inner shell by centrifugal casting, by adding Mg a alloy to the Adamite material to leave residual Mg.
CONSTITUTION: A roll for a universal mill is manufactured as a composite roll consisting of an Adamite material outer shell and a nodular graphite cast iron inner shell by centrifugal casting. The outer shell material is iron of high hardness Adamite material having superior wear resistance and contg. C 1.0W2.8%, Si 0.2W 2%, Mn 0.3W1.5%, Ni 0.2W5.0% and Cr 0.2W3.0%. Before or after solidifying the inside of the outer shell the nodular graphite cast iron inner shell is cast to manufacture the composite roll. At this time, by adding a Mg alloy such as Ni-Mg to molten Adamite material 0.001W0.05% of residual Mg is left. Abnormal graphite layers 3 are formed in outer shell 1 near boundary 4 between shell 1 and inner shell 2 to prevent the roll from cracking.
COPYRIGHT: (C)1980,JPO&Japio
JP10069978A 1978-08-16 1978-08-16 Manufacture of composite roll Pending JPS5528337A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10069978A JPS5528337A (en) 1978-08-16 1978-08-16 Manufacture of composite roll

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10069978A JPS5528337A (en) 1978-08-16 1978-08-16 Manufacture of composite roll

Publications (1)

Publication Number Publication Date
JPS5528337A true JPS5528337A (en) 1980-02-28

Family

ID=14280958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10069978A Pending JPS5528337A (en) 1978-08-16 1978-08-16 Manufacture of composite roll

Country Status (1)

Country Link
JP (1) JPS5528337A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5923843A (en) * 1982-07-31 1984-02-07 Kubota Ltd Graphite steel material for roll for hot rolling
JPS5923845A (en) * 1982-07-31 1984-02-07 Kubota Ltd Sleeve for roll for rolling h-beam
US4548653A (en) * 1980-10-31 1985-10-22 Union Siderurgique Du Nord Et De L'est De La France (Usinor) Cast cold rolling roll and its method of manufacture

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50129420A (en) * 1974-03-14 1975-10-13
JPS51119325A (en) * 1975-04-11 1976-10-19 Kubota Ltd Method to manufacture thick wall sleeve rolls
JPS5333927A (en) * 1976-09-09 1978-03-30 Kubota Ltd Method of manufacturing compound roll

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50129420A (en) * 1974-03-14 1975-10-13
JPS51119325A (en) * 1975-04-11 1976-10-19 Kubota Ltd Method to manufacture thick wall sleeve rolls
JPS5333927A (en) * 1976-09-09 1978-03-30 Kubota Ltd Method of manufacturing compound roll

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548653A (en) * 1980-10-31 1985-10-22 Union Siderurgique Du Nord Et De L'est De La France (Usinor) Cast cold rolling roll and its method of manufacture
JPS5923843A (en) * 1982-07-31 1984-02-07 Kubota Ltd Graphite steel material for roll for hot rolling
JPS5923845A (en) * 1982-07-31 1984-02-07 Kubota Ltd Sleeve for roll for rolling h-beam
JPH0457743B2 (en) * 1982-07-31 1992-09-14 Kubota Kk

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