JPS54103729A - Highly tough ductile cast iron core roll for compound roll - Google Patents
Highly tough ductile cast iron core roll for compound rollInfo
- Publication number
- JPS54103729A JPS54103729A JP1075278A JP1075278A JPS54103729A JP S54103729 A JPS54103729 A JP S54103729A JP 1075278 A JP1075278 A JP 1075278A JP 1075278 A JP1075278 A JP 1075278A JP S54103729 A JPS54103729 A JP S54103729A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- less
- cast iron
- core
- ductile cast
- 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
Links
Abstract
PURPOSE: To provide a core roll excellent in toughness and anti-surface roughness with the increase in spherical graphite deep in thickness by inoculating a ductile cast iron for a core, at which is to be united with a shell, specified in composition at a spruce after spheriodizing of graphite.
CONSTITUTION: A ductile cast iron composed of 2.8 to 3.8% C by weight, 1.0 to 2.3% Si, 0.4 to 0.9% Mn, less than 0.1% P. less than 0.015% S, less than 2.0% N1, less than 0.5% Cr, less than 0.9% Mo, 0.04 to 0.1% Mn and Fe for the rest. In puring a molten steel 10 for the core into a mold 1 through a pouring basin 6 to allow the core to combine with an adamite roll material for a shell, an inoculation agent is added to the molten steel 10 at the pouring basin, i.e., the spruce to control the number of graphite particles in the structure to more than 2 × 103/cm3. In this manner, the deterioraton in the inoculaton effect is minimized even if the solidifying speed of the molten steel is low, providing an excellent toughness.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1075278A JPS54103729A (en) | 1978-02-01 | 1978-02-01 | Highly tough ductile cast iron core roll for compound roll |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1075278A JPS54103729A (en) | 1978-02-01 | 1978-02-01 | Highly tough ductile cast iron core roll for compound roll |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54103729A true JPS54103729A (en) | 1979-08-15 |
JPS5531178B2 JPS5531178B2 (en) | 1980-08-16 |
Family
ID=11759037
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1075278A Granted JPS54103729A (en) | 1978-02-01 | 1978-02-01 | Highly tough ductile cast iron core roll for compound roll |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54103729A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5641064A (en) * | 1979-09-11 | 1981-04-17 | Kubota Ltd | Production of high chromium roll having cavity on core part |
JPS5658946A (en) * | 1979-10-16 | 1981-05-22 | Kubota Ltd | Composite roll for rolling |
JPS57134538A (en) * | 1981-02-13 | 1982-08-19 | Kubota Ltd | Composite roll having especially tough neck |
JP2013094823A (en) * | 2011-11-01 | 2013-05-20 | Shin-Hokoku Steel Corp | Roller for forming steel pipe made of spheroidal graphite cast iron and method for producing material of the same |
CN105709881A (en) * | 2014-12-02 | 2016-06-29 | 河北泰铭投资集团有限公司 | Multilayer composite superhigh-wear-resistant millstone tile and production method thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58200305A (en) * | 1982-05-18 | 1983-11-21 | Toshiba Corp | Digital controller |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5310748A (en) * | 1976-07-16 | 1978-01-31 | Toray Industries | Friction false twisting apparatus |
-
1978
- 1978-02-01 JP JP1075278A patent/JPS54103729A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5310748A (en) * | 1976-07-16 | 1978-01-31 | Toray Industries | Friction false twisting apparatus |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5641064A (en) * | 1979-09-11 | 1981-04-17 | Kubota Ltd | Production of high chromium roll having cavity on core part |
JPS5920418B2 (en) * | 1979-09-11 | 1984-05-12 | 株式会社クボタ | Manufacturing method of high chromium roll with a cavity in the core |
JPS5658946A (en) * | 1979-10-16 | 1981-05-22 | Kubota Ltd | Composite roll for rolling |
JPS5814868B2 (en) * | 1979-10-16 | 1983-03-22 | 株式会社クボタ | Composite roll for rolling |
JPS57134538A (en) * | 1981-02-13 | 1982-08-19 | Kubota Ltd | Composite roll having especially tough neck |
JPS6115939B2 (en) * | 1981-02-13 | 1986-04-26 | Kubota Ltd | |
JP2013094823A (en) * | 2011-11-01 | 2013-05-20 | Shin-Hokoku Steel Corp | Roller for forming steel pipe made of spheroidal graphite cast iron and method for producing material of the same |
CN105709881A (en) * | 2014-12-02 | 2016-06-29 | 河北泰铭投资集团有限公司 | Multilayer composite superhigh-wear-resistant millstone tile and production method thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS5531178B2 (en) | 1980-08-16 |
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