JPS57203709A - Method and device for spheroidization of ductile cast iron - Google Patents
Method and device for spheroidization of ductile cast ironInfo
- Publication number
- JPS57203709A JPS57203709A JP8857181A JP8857181A JPS57203709A JP S57203709 A JPS57203709 A JP S57203709A JP 8857181 A JP8857181 A JP 8857181A JP 8857181 A JP8857181 A JP 8857181A JP S57203709 A JPS57203709 A JP S57203709A
- Authority
- JP
- Japan
- Prior art keywords
- tundish
- cast iron
- ladle
- molten iron
- graphite
- 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
Landscapes
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
PURPOSE: To improve the yield of a spheroidizing agent in the stage of producing spheroidal graphite cast iron by a tundish method by injecting molten cast iron in a short time from a tundish into a ladle then closing the charging port of the tundish.
CONSTITUTION: Mg or an Mg alloy as a graphite spheroidizing agent 6 and a coveing agent 7 are put in the recess 5 of a ladle 1 for treatment, and a tundish 2 contg. molten iron 3 is placed thereon. A stopper 8 of a large diameter charging port 4' of the tundish 2 is lifted to charge the whole molten iron 3 into the ladle 1 in a short time and to allow the same to react with the spheroidizing agent, whereby the flake graphite of the molten iron is spheroidized and the sheroidal graphite cast iron is produced. In this case, it is possible to cause spheroidal reaction with less generation of fumes of Mg and in high yields of Mg by closing the port 4' with the stopper 8 immediately after charging of the molten iron from the tundish 2.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8857181A JPS57203709A (en) | 1981-06-08 | 1981-06-08 | Method and device for spheroidization of ductile cast iron |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8857181A JPS57203709A (en) | 1981-06-08 | 1981-06-08 | Method and device for spheroidization of ductile cast iron |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57203709A true JPS57203709A (en) | 1982-12-14 |
JPS6238409B2 JPS6238409B2 (en) | 1987-08-18 |
Family
ID=13946547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8857181A Granted JPS57203709A (en) | 1981-06-08 | 1981-06-08 | Method and device for spheroidization of ductile cast iron |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57203709A (en) |
-
1981
- 1981-06-08 JP JP8857181A patent/JPS57203709A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6238409B2 (en) | 1987-08-18 |
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