JPS55144375A - Production of rolling roll - Google Patents
Production of rolling rollInfo
- 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
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
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)
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 |
-
1979
- 1979-04-28 JP JP5451879A patent/JPS55144375A/en active Pending
Cited By (1)
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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