JPS5725278A - Manufacture of sound steel ingot and mold to be used for said purpose - Google Patents
Manufacture of sound steel ingot and mold to be used for said purposeInfo
- Publication number
- JPS5725278A JPS5725278A JP9868680A JP9868680A JPS5725278A JP S5725278 A JPS5725278 A JP S5725278A JP 9868680 A JP9868680 A JP 9868680A JP 9868680 A JP9868680 A JP 9868680A JP S5725278 A JPS5725278 A JP S5725278A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- mold
- electric current
- increased
- molten
- 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
- Continuous Casting (AREA)
Abstract
PURPOSE: To manufacture sound steel ingots having no microsegregation, by preventing the surfacing of molten steel by flowing the molten steel in the solid-liquid coexisting area toward the lower part of mold by an electromagnetic force when steel ingots are solidified.
CONSTITUTION: A mold 5 is made of cast iron for the section 20W80% from the bottom and the remaining upper section is constituted of refractories 6 having a shell 7 with 10W50mm thick stainless steel. The molten metal is charged into the mold 5 and an electric current is supplied to an electromagnetic stirring coil 9. The electric current is increased as the solidification of molten metal progresses. When the electric current is increased, the elctromagnetic force is also increased. This power supply is continued until a steel ingot solidifies completely. Since the value of electric current is set so that the flow speed of downward flow of the molten metal between the front end position of crystallized steel (a) and the position of completely solidified steel is regulated to approx. 5cm/min and the surfacing of molten steel in the inverted V shaped segregation area is prevented, it must be determined by considering the quality of the shell 7, the solidified amount, the thickness of refractories 6, the structure of electromagnetic stirring coil 9, the specification of power source, etc.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9868680A JPS5725278A (en) | 1980-07-21 | 1980-07-21 | Manufacture of sound steel ingot and mold to be used for said purpose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9868680A JPS5725278A (en) | 1980-07-21 | 1980-07-21 | Manufacture of sound steel ingot and mold to be used for said purpose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5725278A true JPS5725278A (en) | 1982-02-10 |
Family
ID=14226382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9868680A Pending JPS5725278A (en) | 1980-07-21 | 1980-07-21 | Manufacture of sound steel ingot and mold to be used for said purpose |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5725278A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61212463A (en) * | 1985-03-19 | 1986-09-20 | Shinko Electric Co Ltd | Electromagnetic stirrer |
| JP2018015785A (en) * | 2016-07-28 | 2018-02-01 | アイダエンジニアリング株式会社 | Metal molding manufacturing apparatus by electromagnetic stirring |
-
1980
- 1980-07-21 JP JP9868680A patent/JPS5725278A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61212463A (en) * | 1985-03-19 | 1986-09-20 | Shinko Electric Co Ltd | Electromagnetic stirrer |
| JP2018015785A (en) * | 2016-07-28 | 2018-02-01 | アイダエンジニアリング株式会社 | Metal molding manufacturing apparatus by electromagnetic stirring |
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