JPS55144375A - Production of rolling roll - Google Patents

Production of rolling roll

Info

Publication number
JPS55144375A
JPS55144375A JP5451879A JP5451879A JPS55144375A JP S55144375 A JPS55144375 A JP S55144375A JP 5451879 A JP5451879 A JP 5451879A JP 5451879 A JP5451879 A JP 5451879A JP S55144375 A JPS55144375 A JP S55144375A
Authority
JP
Japan
Prior art keywords
mold
pressure
inert gas
molten metal
spacing
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
JP5451879A
Other languages
Japanese (ja)
Inventor
Tatsuo Nishida
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 JP5451879A priority Critical patent/JPS55144375A/en
Publication of JPS55144375A publication Critical patent/JPS55144375A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To considerably reduce the micro-porosities in the product and also reduce the required head amount by letting the poured molten metal freeze in the inert gas of the specific pressure filled in the mold which is of metal body on the outer side of the specific sections in casting of the rolling roll.
CONSTITUTION: In forming a roll body 2 by pouring molten metal into a mold 1, the opening face at the top of the mold 1 is hermetically closed by a shield plate 3 of an iron plate or the like immeidately after the pouring of the molten metal. Inert gas is blown and filled into the spacing 5 under pressure of 5W15kg/cm2 by way of the feed pipe 6 which is beforehand provided to the plate 3 and whose one end is opened into the spacing 5 of the mold 1 inclusive of the upper part of the heat part 4, and the roll body 2 maintained under this pressure is frozen. Below the foreging pressure lower limit, the effect cannot be expected and there is no need for exceeding the upper limit. For the purpose of holding this pressure, the outer side face of the mold of at least the inert gas filling part is formed by metal body 7.
COPYRIGHT: (C)1980,JPO&Japio
JP5451879A 1979-04-28 1979-04-28 Production of rolling roll Pending JPS55144375A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5451879A JPS55144375A (en) 1979-04-28 1979-04-28 Production of rolling roll

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5451879A JPS55144375A (en) 1979-04-28 1979-04-28 Production of rolling roll

Publications (1)

Publication Number Publication Date
JPS55144375A true JPS55144375A (en) 1980-11-11

Family

ID=12972861

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5451879A Pending JPS55144375A (en) 1979-04-28 1979-04-28 Production of rolling roll

Country Status (1)

Country Link
JP (1) JPS55144375A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5014764A (en) * 1986-11-17 1991-05-14 Aluminium Pechiney Lost-foam casting of aluminum under pressure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5014764A (en) * 1986-11-17 1991-05-14 Aluminium Pechiney Lost-foam casting of aluminum under pressure

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