JPS5516718A - Process and apparatus for degassing and casting steel ingot - Google Patents
Process and apparatus for degassing and casting steel ingotInfo
- Publication number
- JPS5516718A JPS5516718A JP8799278A JP8799278A JPS5516718A JP S5516718 A JPS5516718 A JP S5516718A JP 8799278 A JP8799278 A JP 8799278A JP 8799278 A JP8799278 A JP 8799278A JP S5516718 A JPS5516718 A JP S5516718A
- Authority
- JP
- Japan
- Prior art keywords
- molten steel
- vacuum tank
- mold
- ingot
- steel
- 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
- Manufacture And Refinement Of Metals (AREA)
Abstract
PURPOSE: To obtain a steel ingot having superior surface quality and internal characteristics by introducing part of molten steel into a vacuum tank, and returning it again to a mold to thereby degas the molten steel.
CONSTITUTION: A small vacuum tank 2 lined with refractory material on the inner surface thereof is mounted at an optimum upper position of an ingot mold 1 filled with molten steel. When the vacuum tank 2 and connecting vacuum tube 3 are not sufficiently heated, they are preheated in advance prior to the suction of the molten steel into the vacuum tank 2. When an evacuating facility 4 is driven to reduce the pressure in the vacuum tank 2 the molten steel flown into the vacuum tank 2 is degassed through the suction tube 3 in response to the reduced pressure degree. Then, gas is blown into the suction tube 3 to thereby circulate the molten steel in the vacuum tank 2 into the mold 2. Thus, the molten steel in the mold 1 is treated to thereby produce steel ingot of high quality.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8799278A JPS5516718A (en) | 1978-07-19 | 1978-07-19 | Process and apparatus for degassing and casting steel ingot |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8799278A JPS5516718A (en) | 1978-07-19 | 1978-07-19 | Process and apparatus for degassing and casting steel ingot |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5516718A true JPS5516718A (en) | 1980-02-05 |
Family
ID=13930297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8799278A Pending JPS5516718A (en) | 1978-07-19 | 1978-07-19 | Process and apparatus for degassing and casting steel ingot |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5516718A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0221243A (en) * | 1988-03-18 | 1990-01-24 | Bodenseewerk Perkin Elmer & Co Gmbh | Electromagnet for atomic absorption spectrophotometer |
-
1978
- 1978-07-19 JP JP8799278A patent/JPS5516718A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0221243A (en) * | 1988-03-18 | 1990-01-24 | Bodenseewerk Perkin Elmer & Co Gmbh | Electromagnet for atomic absorption spectrophotometer |
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