GB377951A - Improvements in and relating to the manufacture of chromium steel alloys - Google Patents
Improvements in and relating to the manufacture of chromium steel alloysInfo
- Publication number
- GB377951A GB377951A GB3072/31A GB307231A GB377951A GB 377951 A GB377951 A GB 377951A GB 3072/31 A GB3072/31 A GB 3072/31A GB 307231 A GB307231 A GB 307231A GB 377951 A GB377951 A GB 377951A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chromium
- slag
- added
- manufacture
- bath
- 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)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
A process for the manufacture of corrosion-resisting chromium steels in which a chromium-containing iron bath is refined to decrease the carbon content and the chromium content is increased by reduction of the chromium oxide in the slag, is conducted in an induction furnace. The reducing agent may be ferrosilicon with ferromanganese, aluminium, calcium silicide, &c. The slag may be stiffened during the refining stage by the addition of glass &c., to avoid contact with atmospheric oxygen, and titanium may be added to remove nitrogen. The process may also be carried out by adding a highly carburized iron chromium alloy to a low carbon iron bath after which follows the increasing of the chromium content of the bath. Alloying elements, such as nickel, cobalt, titanium, aluminium, and silicon, may be added after reducing the chromic oxide, while oxides of metals such as tungsten, molybdenum, and manganese may be added to the slag to be reduced with the chromium.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE377951X | 1930-12-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB377951A true GB377951A (en) | 1932-08-04 |
Family
ID=6344493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3072/31A Expired GB377951A (en) | 1930-12-31 | 1931-01-30 | Improvements in and relating to the manufacture of chromium steel alloys |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB377951A (en) |
-
1931
- 1931-01-30 GB GB3072/31A patent/GB377951A/en not_active Expired
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