GB727707A - Improvements in or relating to the manufacture of cast iron - Google Patents
Improvements in or relating to the manufacture of cast ironInfo
- Publication number
- GB727707A GB727707A GB19403/53A GB1940353A GB727707A GB 727707 A GB727707 A GB 727707A GB 19403/53 A GB19403/53 A GB 19403/53A GB 1940353 A GB1940353 A GB 1940353A GB 727707 A GB727707 A GB 727707A
- Authority
- GB
- United Kingdom
- Prior art keywords
- metal
- melt
- added
- addition
- cast 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
Cast iron is improved by the addition to a molten bath of(1) a substance selected from the group consisting of sodium, potassium, lithium, calcium. barium, and strontium, and silicides and carbides of these metals, and (2) a fluorine containing compound of an alkali metal, an alkaline earth metal or a rare earth metal, substantially simultaneously, or by the addition of a mixture of (1) and (2) and then pouring a casting. Up to 4 per cent of each of(1) and(2), based on the weight of melt, may be added and the melt may have a covering of basic slag. The materials may be added, with stirring, to thessurface of the melt, or to a stream of metal flowing into a ladle, or to a rotating refractory lined tumbler along with the metal. A graphitizing agent or alloying agent may be added with or prior to the addition of these materials. The fluorides of the rare earth metals may be obtained from monazite sand. Specifications 636,579, 638,255, 659,928, 681,552, 684,119, and U.S.A. Specification 2,625,473 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US727707XA | 1953-04-10 | 1953-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB727707A true GB727707A (en) | 1955-04-06 |
Family
ID=22109643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19403/53A Expired GB727707A (en) | 1953-04-10 | 1953-07-13 | Improvements in or relating to the manufacture of cast iron |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB727707A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2821473A (en) * | 1956-08-01 | 1958-01-28 | Meehanite Metal Corp | Method of making nodular cast iron |
| FR2007780A1 (en) * | 1968-05-03 | 1970-01-09 | Bremanger Smelteverk |
-
1953
- 1953-07-13 GB GB19403/53A patent/GB727707A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2821473A (en) * | 1956-08-01 | 1958-01-28 | Meehanite Metal Corp | Method of making nodular cast iron |
| FR2007780A1 (en) * | 1968-05-03 | 1970-01-09 | Bremanger Smelteverk |
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