GB1089574A - A method of treating cast iron melts - Google Patents
A method of treating cast iron meltsInfo
- Publication number
- GB1089574A GB1089574A GB447666A GB447666A GB1089574A GB 1089574 A GB1089574 A GB 1089574A GB 447666 A GB447666 A GB 447666A GB 447666 A GB447666 A GB 447666A GB 1089574 A GB1089574 A GB 1089574A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alloy
- melt
- ladle
- cast iron
- iron
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/10—Making spheroidal graphite cast-iron
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
Spheroidal graphite cast iron is produced by contacting a spheroidizing alloy e.g. containing up to 15% Mg in lumpy form, preferably as briquettes containing the alloy with FeSi and binder, on a ladle floor with a quantity of crystallizing liquid iron melt insufficient for completely covering the alloy, and then pouring the rest of the iron melt at a higher temperature e.g. 1490 or 1500 DEG C. over the alloy anchored in the solidified melt. The spheroidizing alloy may be introduced into a quantity of crystallizing liquid meltpreviously poured into the ladle, preferably in a recess in the ladle floor, or the alloy may be first placed into the ladle, or recess, and the crystallizing liquid melt poured over. The nodularized iron melt may be subsequently inoculated with FeSi e.g. at 1420 or 1400 DEG C. Examples of nodularizing alloys are (1) 84% Ni, 15% Mg and 1% misch metal; and (2) 10% Mg, 1-4% Ca, 0.8% misch metal, 35% Fe and remainder Si. The inoculated cast iron may contain 3.8% C, 0.3% Mn, 0.035% P, 0.01% S, 1.5-2.8% Si, 0.2-1% Ni and 0.058-0.064% Mg.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM64014A DE1260501B (en) | 1965-02-03 | 1965-02-03 | Process for treating molten cast iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1089574A true GB1089574A (en) | 1967-11-01 |
Family
ID=7310990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB447666A Expired GB1089574A (en) | 1965-02-03 | 1966-02-01 | A method of treating cast iron melts |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1260501B (en) |
| GB (1) | GB1089574A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3961663A (en) * | 1973-05-28 | 1976-06-08 | Pont-A-Mousson S.A. | Process of employing a substance in pellet form for nodularizing graphite in liquid cast iron |
-
1965
- 1965-02-03 DE DEM64014A patent/DE1260501B/en active Pending
-
1966
- 1966-02-01 GB GB447666A patent/GB1089574A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3961663A (en) * | 1973-05-28 | 1976-06-08 | Pont-A-Mousson S.A. | Process of employing a substance in pellet form for nodularizing graphite in liquid cast iron |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1260501B (en) | 1968-02-08 |
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