JPS54103721A - Inoculation method in core casting for compound roll - Google Patents
Inoculation method in core casting for compound rollInfo
- Publication number
- JPS54103721A JPS54103721A JP1074978A JP1074978A JPS54103721A JP S54103721 A JPS54103721 A JP S54103721A JP 1074978 A JP1074978 A JP 1074978A JP 1074978 A JP1074978 A JP 1074978A JP S54103721 A JPS54103721 A JP S54103721A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- compound roll
- casting
- ductile cast
- inoculation
- 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
Landscapes
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
PURPOSE: To making the entire core up of ductile cast excellent in the toughness by eliminating fading through an inoculation of the cast conducted at the pouring inlet of the mold in producing a compound roll with a ductile cast core.
CONSTITUTION: First, a shell layer 4 of a compound roll is casted in a mold 1 composed of a chiller 2 and a sand mold 3 and then, quenched by the chiller whereby the the hardness of the surface is increased, improving the wear resistance. Subsequently, a melted pig iron 10 with the graphite spherodized is cased in the mold 1 from a laddle 9. Here, at the spruce 6 of the mold 1, Si affiliated inoculant ranging from 4 to 48 mesh, such as Fe-Si, Ca-Si and Zr-Si agents at an addition rate 0.2 to 2 kg/sec. in an amount of 0.1 to 1.0% by weight in terms of pure Si. The inoculation, made immediately prior to the casting, no fading occurs before solidification after the casting into the mold 1. In this manner, the entire core layer can be made up of ductile cast excellent in the toughness.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1074978A JPS54103721A (en) | 1978-02-01 | 1978-02-01 | Inoculation method in core casting for compound roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1074978A JPS54103721A (en) | 1978-02-01 | 1978-02-01 | Inoculation method in core casting for compound roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54103721A true JPS54103721A (en) | 1979-08-15 |
Family
ID=11758948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1074978A Pending JPS54103721A (en) | 1978-02-01 | 1978-02-01 | Inoculation method in core casting for compound roll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54103721A (en) |
Cited By (3)
| 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 |
| JPS5691650U (en) * | 1979-12-14 | 1981-07-21 | ||
| CN110560656A (en) * | 2019-10-23 | 2019-12-13 | 湖北正信管件有限公司 | Nodular cast iron pipe fitting production facility |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52149212A (en) * | 1976-06-08 | 1977-12-12 | Nippon Steel Corp | Production of ferrite-type spheroidal graphite cast iron as cast |
-
1978
- 1978-02-01 JP JP1074978A patent/JPS54103721A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52149212A (en) * | 1976-06-08 | 1977-12-12 | Nippon Steel Corp | Production of ferrite-type spheroidal graphite cast iron as cast |
Cited By (4)
| 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 |
| JPS5691650U (en) * | 1979-12-14 | 1981-07-21 | ||
| CN110560656A (en) * | 2019-10-23 | 2019-12-13 | 湖北正信管件有限公司 | Nodular cast iron pipe fitting production facility |
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