GB771115A - New or improved process and apparatus for the introduction of fine grained solid additions below the surface of metal melts - Google Patents
New or improved process and apparatus for the introduction of fine grained solid additions below the surface of metal meltsInfo
- Publication number
- GB771115A GB771115A GB27114/53A GB2711453A GB771115A GB 771115 A GB771115 A GB 771115A GB 27114/53 A GB27114/53 A GB 27114/53A GB 2711453 A GB2711453 A GB 2711453A GB 771115 A GB771115 A GB 771115A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solid
- melt
- gas
- pipe
- fine
- 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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material
-
- 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
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4606—Lances or injectors
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
771,115. Refining metals; alloys. TIROLER ROHREN-UND METALLWERKE AKT.-GES. Oct. 2, 1953 [Oct. 2, 1952], No. 27114/53. Classes 72 and 82(1) [Also in Group XII] Magnesium, aluminium and/or ferrotitanium in fine-grained form are conveyed into a metal melt, particularly one of iron for refining or nodularizing, by a carrier gas such as nitrogen'which is not effective as a protective gas at the temperatures in and above the melt, the solid-gas mixture being cooled below the temperatures at which the gas reacts with the solid until just before it contacts the melt. The Figure shows a feeding device in which the gas supplied at 18 to a hollow stem 17 whose tip 16 is adjustable vertically away from a funnel 14 containing the fine-grained solid entrains the solid by an injector effect and carries it through feed-pipe 1 to a nozzle 2. A cooling jacket is divided into spaces 4 and 5 by a pipe 6, compressed air being supplied at 8 to flow downwardly through space 4 and holes 9 in a disc 7 and then upwardly through space 5 to leave at 10. The pipe 11 which is immersed in the melt is protected by a coating 12 of refractory such as graphite or fireclay. A handwheel 19 which adjusts the vertical position of tip 16 controls the rate of addition of the solid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT771115X | 1952-10-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB771115A true GB771115A (en) | 1957-03-27 |
Family
ID=3680692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27114/53A Expired GB771115A (en) | 1952-10-02 | 1953-10-02 | New or improved process and apparatus for the introduction of fine grained solid additions below the surface of metal melts |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB771115A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2162932A (en) * | 1984-07-11 | 1986-02-12 | Tolltreck Systems Limited | Cooling metallurgical apparatus |
| GB2162859A (en) * | 1984-08-08 | 1986-02-12 | Fischer Ag Georg | Introducing an additive into a bath of molten metal |
-
1953
- 1953-10-02 GB GB27114/53A patent/GB771115A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2162932A (en) * | 1984-07-11 | 1986-02-12 | Tolltreck Systems Limited | Cooling metallurgical apparatus |
| GB2162859A (en) * | 1984-08-08 | 1986-02-12 | Fischer Ag Georg | Introducing an additive into a bath of molten metal |
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