GB813296A - Improved process for the manufacture of steel - Google Patents
Improved process for the manufacture of steelInfo
- Publication number
- GB813296A GB813296A GB12945/57A GB1294557A GB813296A GB 813296 A GB813296 A GB 813296A GB 12945/57 A GB12945/57 A GB 12945/57A GB 1294557 A GB1294557 A GB 1294557A GB 813296 A GB813296 A GB 813296A
- Authority
- GB
- United Kingdom
- Prior art keywords
- degassifying
- ladle
- steel
- metal
- vacuum
- 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
- C21C7/10—Handling in a vacuum
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/04—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated adapted for treating the charge in vacuum or special atmosphere
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
Basic Bessemer steel is carburized so that the carbon content is at least equal to the oxygen content and is then degassed under reduced pressure by periodically increasing and decreasing the depth to which a tube connected to a vacuum degassifying vessel dips into the molten metal in a ladle whereby part of the contents of the ladle enter the degassifying vessel and, after degassifying and heating are returned to the ladle, theh operations being repeated until the steel is degassified. The carbon may be added before or during the vacuum treatment e.g. in the apparatus described and claimed in Specification 801,518, with or without the addition of oxygen. The degassed metal may be cast in the atmosphere or in the presence of a non-oxidizing gas. A deoxidizing substance and/or alloying elements may also be added to the metal while in the vacuum chamber.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE813296X | 1956-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB813296A true GB813296A (en) | 1959-05-13 |
Family
ID=6732916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12945/57A Expired GB813296A (en) | 1956-04-23 | 1957-04-23 | Improved process for the manufacture of steel |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB813296A (en) |
-
1957
- 1957-04-23 GB GB12945/57A patent/GB813296A/en not_active Expired
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