GB669922A - Improvements relating to the manufacture of steel - Google Patents
Improvements relating to the manufacture of steelInfo
- Publication number
- GB669922A GB669922A GB14304/49A GB1430449A GB669922A GB 669922 A GB669922 A GB 669922A GB 14304/49 A GB14304/49 A GB 14304/49A GB 1430449 A GB1430449 A GB 1430449A GB 669922 A GB669922 A GB 669922A
- Authority
- GB
- United Kingdom
- Prior art keywords
- steel
- aluminium
- bessemer
- manufacture
- kgs
- 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
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/04—Manufacture of hearth-furnace steel, e.g. Siemens-Martin steel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
In a process for the manufacture of steel there is added to Siemens-Martin steel, steel made by the converter process which, after conversion has been treated outside the converter with silicon and/ or aluminium under a reducing slag. Basic Bessemer steel of which the phosphorus and nitrogen contents have been reduced or acid Bessemer steel which has been dephosphorized may be used. The Bessemer metal may be poured into a first ladle and from this into a second ladle in as large a stream as possible at the same time additions of ferrosilicon and/or aluminium are made under a white slag of finely ground lime and fluorspar. 75-5000 kgs of 90 per cent ferrosilicon and 100-500 kgs of aluminium may be added per 100 tons of steel. The mixed steel produced is stated to be superior to Siemens-Martin steel of the same composition.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE669922X | 1949-03-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB669922A true GB669922A (en) | 1952-04-09 |
Family
ID=6590290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14304/49A Expired GB669922A (en) | 1949-03-11 | 1949-05-27 | Improvements relating to the manufacture of steel |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB669922A (en) |
-
1949
- 1949-05-27 GB GB14304/49A patent/GB669922A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3809547A (en) | Electric furnace steelmaking process using oxide of boron additive | |
GB1508024A (en) | Processes for steel making by oxygen refining of iron | |
US2781256A (en) | Process for the rapid removal of sulphur and silicon from pig iron | |
GB669922A (en) | Improvements relating to the manufacture of steel | |
US3574597A (en) | Acceleration of the dissolution of lime in the basic oxygen furnace process | |
JPS5629611A (en) | Simultaneous dephosphorizing desulfurization of blast furnace molten pig iron | |
GB649499A (en) | Process for the manufacture of transformer and dynamo steels | |
GB492740A (en) | Improvements in and relating to the dephosphorising and/or desulphurising of steel | |
GB648874A (en) | Improvements in the manufacture of steel by the basic bessemer process | |
GB1037079A (en) | Improved process of steelmaking by the use of a converter with oxygen-enriched blast | |
GB1495821A (en) | Method of refining steel | |
JPS6114118B2 (en) | ||
GB848567A (en) | Improvements in a method of treating iron and steel to remove dissolved oxygen | |
SU551372A1 (en) | The method of steelmaking in the open-hearth furnace | |
SU1629323A2 (en) | Process of steelmaking in converters | |
SU107238A1 (en) | The method of dephosphorization of steel | |
SU399535A1 (en) | SLAG FORMING MIXTURE | |
GB650180A (en) | Improvements relating to methods of refining steel | |
GB1037078A (en) | Process for the production of steel with low nitrogen, phosphorus, and oxygen contents | |
GB705321A (en) | Improvements relating to the production of steel | |
Taskinen et al. | Slag Pretreatment for Simultaneous Dephosphorization and Desulphurization of Hot Metal | |
GB514428A (en) | Improvements in or relating to the manufacture of steel | |
GB753677A (en) | Improvements in or relating to processes for the production in converters of steels low in phosphorus, nitrogen, and oxygen | |
GB662363A (en) | Process for the manufacture of transformer and dynamo steels | |
GB107770A (en) | A Method of Improving the Thomas Process. |