JPS5544511A - Method and apparatus for treating molten metal - Google Patents
Method and apparatus for treating molten metalInfo
- Publication number
- JPS5544511A JPS5544511A JP11589078A JP11589078A JPS5544511A JP S5544511 A JPS5544511 A JP S5544511A JP 11589078 A JP11589078 A JP 11589078A JP 11589078 A JP11589078 A JP 11589078A JP S5544511 A JPS5544511 A JP S5544511A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- blowing
- molten metal
- hole
- blown
- 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
- Treatment Of Steel In Its Molten State (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
PURPOSE: To enhance the effect of desulfurizing or deoxidizing molten metal by blowing a molten metal treating agent into the metal from the tuyere hole of a porous refractory together with gas and by blowing gas fine bubbles for agitation into the metal through the refractory.
CONSTITUTION: Porous refractory body 1 having through tuyere hole 2 is attached to sliding plate 4 of a sliding nozzle, and gas feed pipe 3 is connected to hole 2. A desulfurizer such as CaC2, a deoxidizer such as ferrosilicon, or the like is blown into molten metal from the lower part of hole 2 through nozzle 6 together with inert carrier gas. After blowing a prescribed amt. of the desulfurizer or the like agitating gas is blown from second gas introduction pipe 3 through body 1 made of high refractory such as alumina and having a porosity of about 20W30%. Bubbles of the gas blown are made smaller than gas bubbles of a conventional method to enhance the treating effect. At the time of stopping the blowing plate 4 is shifted to the closing position to prevent the blowing device from being damaged.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11589078A JPS5544511A (en) | 1978-09-22 | 1978-09-22 | Method and apparatus for treating molten metal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11589078A JPS5544511A (en) | 1978-09-22 | 1978-09-22 | Method and apparatus for treating molten metal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5544511A true JPS5544511A (en) | 1980-03-28 |
Family
ID=14673718
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11589078A Pending JPS5544511A (en) | 1978-09-22 | 1978-09-22 | Method and apparatus for treating molten metal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5544511A (en) |
-
1978
- 1978-09-22 JP JP11589078A patent/JPS5544511A/en active Pending
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