DE2803941C2 - Verfahren zum Erzeugen von legierten Stählen mit extrem niedrigem Kohlenstoffgehalt - Google Patents
Verfahren zum Erzeugen von legierten Stählen mit extrem niedrigem KohlenstoffgehaltInfo
- Publication number
- DE2803941C2 DE2803941C2 DE2803941A DE2803941A DE2803941C2 DE 2803941 C2 DE2803941 C2 DE 2803941C2 DE 2803941 A DE2803941 A DE 2803941A DE 2803941 A DE2803941 A DE 2803941A DE 2803941 C2 DE2803941 C2 DE 2803941C2
- Authority
- DE
- Germany
- Prior art keywords
- steel
- slag
- vacuum
- treatment
- melt
- 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 claims description 72
- 239000010959 steel Substances 0.000 title claims description 72
- 229910052799 carbon Inorganic materials 0.000 title claims description 38
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 37
- 238000000034 method Methods 0.000 title claims description 20
- 239000000956 alloy Substances 0.000 title 1
- 229910045601 alloy Inorganic materials 0.000 title 1
- 238000005261 decarburization Methods 0.000 claims description 43
- 239000002893 slag Substances 0.000 claims description 41
- 239000011651 chromium Substances 0.000 claims description 24
- 239000000161 steel melt Substances 0.000 claims description 17
- 229910052804 chromium Inorganic materials 0.000 claims description 14
- 239000000155 melt Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 7
- 238000010926 purge Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 2
- 229910052681 coesite Inorganic materials 0.000 claims 1
- 229910052906 cristobalite Inorganic materials 0.000 claims 1
- 238000011010 flushing procedure Methods 0.000 claims 1
- 238000007670 refining Methods 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 235000012239 silicon dioxide Nutrition 0.000 claims 1
- 229910052682 stishovite Inorganic materials 0.000 claims 1
- 229910052905 tridymite Inorganic materials 0.000 claims 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 12
- 239000001301 oxygen Substances 0.000 description 12
- 229910052760 oxygen Inorganic materials 0.000 description 12
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 239000011261 inert gas Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000009489 vacuum treatment Methods 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910001341 Crude steel Inorganic materials 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 241001233037 catfish Species 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000009849 vacuum degassing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP871577A JPS5394213A (en) | 1977-01-31 | 1977-01-31 | Method of making ultralowwcarbon alloy steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2803941A1 DE2803941A1 (de) | 1978-08-03 |
| DE2803941C2 true DE2803941C2 (de) | 1984-04-12 |
Family
ID=11700621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2803941A Expired DE2803941C2 (de) | 1977-01-31 | 1978-01-30 | Verfahren zum Erzeugen von legierten Stählen mit extrem niedrigem Kohlenstoffgehalt |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4154603A (en, 2012) |
| JP (1) | JPS5394213A (en, 2012) |
| DE (1) | DE2803941C2 (en, 2012) |
| FR (1) | FR2378862A1 (en, 2012) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4410359A (en) * | 1982-09-03 | 1983-10-18 | Allegheny Ludlum Steel Corporation | Process for production of stainless steel |
| US4431443A (en) * | 1982-12-17 | 1984-02-14 | Wentzell Joseph M | Methods of vacuum arc melting |
| GB8314298D0 (en) * | 1983-05-24 | 1983-06-29 | Consarc Eng Ltd | Metal refining process |
| CN107779541B (zh) * | 2017-10-25 | 2020-03-20 | 攀钢集团攀枝花钢铁研究院有限公司 | 一种半钢炼钢铸坯的制备方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3925061A (en) * | 1969-07-15 | 1975-12-09 | Asea Ab | Steel manufacture |
| US3802865A (en) * | 1969-08-29 | 1974-04-09 | Nippon Kokan Kk | Self soluble slag forming agents for use in steel making |
| DE2321644B2 (de) * | 1973-04-28 | 1976-06-10 | Verfahren zum entschwefeln von stahlschmelzen | |
| IT1047585B (it) * | 1975-09-26 | 1980-10-20 | Centro Speriment Metallurg | Perfezionamento alla disossidazione e desolforazione dell acciaio |
-
1977
- 1977-01-31 JP JP871577A patent/JPS5394213A/ja active Granted
-
1978
- 1978-01-27 US US05/873,002 patent/US4154603A/en not_active Expired - Lifetime
- 1978-01-30 DE DE2803941A patent/DE2803941C2/de not_active Expired
- 1978-01-30 FR FR7802548A patent/FR2378862A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5394213A (en) | 1978-08-18 |
| DE2803941A1 (de) | 1978-08-03 |
| JPS5636848B2 (en, 2012) | 1981-08-27 |
| FR2378862A1 (fr) | 1978-08-25 |
| US4154603A (en) | 1979-05-15 |
| FR2378862B1 (en, 2012) | 1981-04-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OAP | Request for examination filed | ||
| OD | Request for examination | ||
| D2 | Grant after examination | ||
| 8363 | Opposition against the patent | ||
| 8365 | Fully valid after opposition proceedings |