GB254762A - Improvements in or relating to the reduction of metal and making of alloys - Google Patents
Improvements in or relating to the reduction of metal and making of alloysInfo
- Publication number
- GB254762A GB254762A GB333425A GB333425A GB254762A GB 254762 A GB254762 A GB 254762A GB 333425 A GB333425 A GB 333425A GB 333425 A GB333425 A GB 333425A GB 254762 A GB254762 A GB 254762A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slag
- metal
- per cent
- reducible mixture
- amount
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Iron (AREA)
Abstract
254,762. Johnson, W. Feb. 6, 1925. Alloys. - Stainless or rustless irons or steels containing for example 8-25 per cent of chromium, 0.01-2.5 per cent of carbon, 0.05-5 per cent of manganese, and 0.05-3.5 per cent of silicon, with or without other metals such as nickel, tungsten, cobalt, and molybdenum, are made by adding a reducible mixture consisting of chrome ore and aluminium, silicon, or other exothermic reducing agent, and preheated to 350-1550‹ C., to a slag on an underlying bath of metal in an open-hearth furnace, the slag containing lime to the amount of 12-20 per cent or more of the metal being melted and iron oxide to the amount of 3-20 per cent of the chrome ore used in the reducible mixture. Caustic soda, soda ash or the like may be added to the slag or to the reducible mixture. In a modification, a melt of metal may be made with the usual amount of slag, and the relative bulk of slag to metal afterwards adjusted by withdrawing some of the metal prior to the addition of the reducible mixture to the slag. Specifications 198,323, 211,210, and 213,737 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB333425A GB254762A (en) | 1925-02-06 | 1925-02-06 | Improvements in or relating to the reduction of metal and making of alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB333425A GB254762A (en) | 1925-02-06 | 1925-02-06 | Improvements in or relating to the reduction of metal and making of alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB254762A true GB254762A (en) | 1926-07-06 |
Family
ID=9756338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB333425A Expired GB254762A (en) | 1925-02-06 | 1925-02-06 | Improvements in or relating to the reduction of metal and making of alloys |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB254762A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6165288A (en) * | 1994-05-17 | 2000-12-26 | Ksb Aktienegsellschaft | Highly corrosion and wear resistant chilled casting |
-
1925
- 1925-02-06 GB GB333425A patent/GB254762A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6165288A (en) * | 1994-05-17 | 2000-12-26 | Ksb Aktienegsellschaft | Highly corrosion and wear resistant chilled casting |
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