JPS6447805A - Production of silicon-containing cast iron - Google Patents
Production of silicon-containing cast ironInfo
- Publication number
- JPS6447805A JPS6447805A JP20413987A JP20413987A JPS6447805A JP S6447805 A JPS6447805 A JP S6447805A JP 20413987 A JP20413987 A JP 20413987A JP 20413987 A JP20413987 A JP 20413987A JP S6447805 A JPS6447805 A JP S6447805A
- Authority
- JP
- Japan
- Prior art keywords
- molten iron
- silicon
- silicon source
- iron
- powder
- 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 execute heating of molten iron and addition of silicon at the same time with high efficiency by adding the silicon source from the upper part to molten iron and also supplying oxygen into the molten iron while powder- injecting granular lime series flux into the molten iron. CONSTITUTION:Pretreatment containing each process of desiliconization, desulfurization and dephosphorization on casting floor is executed to the molten iron tapped from a blast furnace to lower content of impurities in the molten iron 23. Next, the silicon source 53 is added to the molten iron 23 in the molten iron ladle 27 from a hopper 55 at the upper part and also while powder-injecting the lime series flux 56 of granular CaO, etc., from an injection lance 51 by Ar gas, etc., oxygen gas is blown into the molten iron 23 from a lance 52. By this method, a part of the silicon source 53 is oxidized and temp. of the molten iron 323 is raised at about 1,450 deg.C to be possible to cast by the above oxidizing heat and also the nonoxidized silicon is contained into the component in the molten iron 23. Next, by executing Mg addition and casting, the silicon- contained cast iron having excellent mechanical strength and ductility is produced at low cost.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20413987A JPS6447805A (en) | 1987-08-19 | 1987-08-19 | Production of silicon-containing cast iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20413987A JPS6447805A (en) | 1987-08-19 | 1987-08-19 | Production of silicon-containing cast iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6447805A true JPS6447805A (en) | 1989-02-22 |
Family
ID=16485482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20413987A Pending JPS6447805A (en) | 1987-08-19 | 1987-08-19 | Production of silicon-containing cast iron |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6447805A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0533028A (en) * | 1991-07-26 | 1993-02-09 | Nippon Steel Corp | Method for producing pig iron for high-purity casting |
| JP2011516265A (en) * | 2008-03-10 | 2011-05-26 | 王宇新 | Treatment method and dedicated casting apparatus for preventing spheroidization inhibition and lowering of casting temperature during casting of ductile cast iron melt |
-
1987
- 1987-08-19 JP JP20413987A patent/JPS6447805A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0533028A (en) * | 1991-07-26 | 1993-02-09 | Nippon Steel Corp | Method for producing pig iron for high-purity casting |
| JP2011516265A (en) * | 2008-03-10 | 2011-05-26 | 王宇新 | Treatment method and dedicated casting apparatus for preventing spheroidization inhibition and lowering of casting temperature during casting of ductile cast iron melt |
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