GB1494668A - Process for the addition of calcium to molten steel - Google Patents
Process for the addition of calcium to molten steelInfo
- Publication number
- GB1494668A GB1494668A GB24298/75A GB2429875A GB1494668A GB 1494668 A GB1494668 A GB 1494668A GB 24298/75 A GB24298/75 A GB 24298/75A GB 2429875 A GB2429875 A GB 2429875A GB 1494668 A GB1494668 A GB 1494668A
- Authority
- GB
- United Kingdom
- Prior art keywords
- steel
- added
- calcium
- molten steel
- less
- 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
- 229910000831 Steel Inorganic materials 0.000 title abstract 7
- 239000011575 calcium Substances 0.000 title abstract 7
- 239000010959 steel Substances 0.000 title abstract 7
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 title abstract 2
- 229910052791 calcium Inorganic materials 0.000 title abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 229910014458 Ca-Si Inorganic materials 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 238000005275 alloying Methods 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000011368 organic material Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
-
- 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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/076—Use of slags or fluxes as treating agents
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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
1494668 Adding Ca to molten steel SUMITOMO METAL INDUSTRIES Ltd 5 June 1975 24298/75 Heading C7D Calcium is added to steel in containers made of iron, alumium, copper, organic material or fireproof paper in the form of metallic Ca, or Caalloys i.e. Ca-Si, Ca-Si-Ba, by plunging the container into steel at 1480-1800‹C, the steel having been pre-treated to have a S content of less than 100 ppm and a total oxygen content of 100 ppm max. Ca is added to the steel at 0À1-2 kg/ton to maintain a Ca:S ratio of 0À05 to 0À8. A suitable steel may contain C 0À02-0À55% Si less than 0À5% Mn 0À2-2À50 with incidental ingredients and one or more alloying elements, and is preferably Al-killed and further vacuum degassed. Ca may alternatively be added in wire form, the Ca-containing additive being within a hollow cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB24298/75A GB1494668A (en) | 1975-06-05 | 1975-06-05 | Process for the addition of calcium to molten steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB24298/75A GB1494668A (en) | 1975-06-05 | 1975-06-05 | Process for the addition of calcium to molten steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1494668A true GB1494668A (en) | 1977-12-07 |
Family
ID=10209485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24298/75A Expired GB1494668A (en) | 1975-06-05 | 1975-06-05 | Process for the addition of calcium to molten steel |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1494668A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4294611A (en) * | 1978-10-04 | 1981-10-13 | Vasipari Kutato Intezet | Process and apparatus for reducing the inclusion content of steels and for refining their structure |
| EP2380996A1 (en) * | 2010-04-26 | 2011-10-26 | Plus Trade Ag | Wire for treating metal melts in a steel pan |
| CN113564487A (en) * | 2021-07-16 | 2021-10-29 | 鞍钢股份有限公司 | High-surface-hardness tool steel with excellent 800MPa electroplating performance and production method thereof |
-
1975
- 1975-06-05 GB GB24298/75A patent/GB1494668A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4294611A (en) * | 1978-10-04 | 1981-10-13 | Vasipari Kutato Intezet | Process and apparatus for reducing the inclusion content of steels and for refining their structure |
| EP2380996A1 (en) * | 2010-04-26 | 2011-10-26 | Plus Trade Ag | Wire for treating metal melts in a steel pan |
| CN113564487A (en) * | 2021-07-16 | 2021-10-29 | 鞍钢股份有限公司 | High-surface-hardness tool steel with excellent 800MPa electroplating performance and production method thereof |
| CN113564487B (en) * | 2021-07-16 | 2022-05-17 | 鞍钢股份有限公司 | High-surface-hardness tool steel with excellent 800MPa electroplating performance and production method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19950604 |