FR2378860A1 - Procede pour la preparation d'aciers a forte teneur en chrome et a teneur extremement faibles en carbone et en azote - Google Patents
Procede pour la preparation d'aciers a forte teneur en chrome et a teneur extremement faibles en carbone et en azoteInfo
- Publication number
- FR2378860A1 FR2378860A1 FR7802547A FR7802547A FR2378860A1 FR 2378860 A1 FR2378860 A1 FR 2378860A1 FR 7802547 A FR7802547 A FR 7802547A FR 7802547 A FR7802547 A FR 7802547A FR 2378860 A1 FR2378860 A1 FR 2378860A1
- Authority
- FR
- France
- Prior art keywords
- content
- steels
- blown
- low carbon
- preparation
- 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.)
- Granted
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title abstract 6
- 229910052799 carbon Inorganic materials 0.000 title abstract 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title abstract 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title abstract 3
- 229910052757 nitrogen Inorganic materials 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 7
- 239000010959 steel Substances 0.000 abstract 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 3
- 229910052804 chromium Inorganic materials 0.000 abstract 3
- 239000011651 chromium Substances 0.000 abstract 3
- 239000001301 oxygen Substances 0.000 abstract 3
- 229910052760 oxygen Inorganic materials 0.000 abstract 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 238000007664 blowing Methods 0.000 abstract 2
- 239000011261 inert gas Substances 0.000 abstract 2
- 229910019830 Cr2 O3 Inorganic materials 0.000 abstract 1
- 238000005266 casting Methods 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 239000002893 slag Substances 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 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
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/068—Decarburising
- C21C7/0685—Decarburising of stainless steel
-
- 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 |
|---|---|---|---|
| JP871377A JPS5394212A (en) | 1977-01-31 | 1977-01-31 | Method of making ultralowwcarbon*highh nitrogen chrome steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2378860A1 true FR2378860A1 (fr) | 1978-08-25 |
| FR2378860B1 FR2378860B1 (en, 2012) | 1980-08-29 |
Family
ID=11700570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7802547A Granted FR2378860A1 (fr) | 1977-01-31 | 1978-01-30 | Procede pour la preparation d'aciers a forte teneur en chrome et a teneur extremement faibles en carbone et en azote |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4170467A (en, 2012) |
| JP (1) | JPS5394212A (en, 2012) |
| DE (1) | DE2803940C2 (en, 2012) |
| FR (1) | FR2378860A1 (en, 2012) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4386957A (en) * | 1980-11-26 | 1983-06-07 | Earle M. Jorgensen Co. | Process for making nonmagnetic steel |
| JPS57145917A (en) * | 1981-03-03 | 1982-09-09 | Sumitomo Metal Ind Ltd | Refining method for high chromium steel |
| US4410359A (en) * | 1982-09-03 | 1983-10-18 | Allegheny Ludlum Steel Corporation | Process for production of stainless steel |
| JPS6280217A (ja) * | 1985-10-03 | 1987-04-13 | Nippon Kokan Kk <Nkk> | 高純度ステンレス鋼の製造法 |
| JPH0629455B2 (ja) * | 1986-06-23 | 1994-04-20 | 日新製鋼株式会社 | ステンレス溶鋼の脱炭方法 |
| JP2819424B2 (ja) * | 1990-03-29 | 1998-10-30 | 新日本製鐵株式会社 | 極低炭素鋼の製造方法 |
| JP2908073B2 (ja) * | 1991-07-05 | 1999-06-21 | 株式会社東芝 | 真空バルブ用接点合金の製造方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4001009A (en) * | 1969-04-03 | 1977-01-04 | Hannsgeorg Bauer | Process for the manufacture of steels with a high chromium content |
| DE2007373B2 (de) * | 1970-02-18 | 1973-05-03 | Eisenwerk-Gesellschaft Maximilianshütte mbH, 8458 Sulzbach-Rosenberg | Verfahren und konverter zum herstellen ferritischer chromstaehle |
| US3788836A (en) * | 1971-03-26 | 1974-01-29 | Allegheny Ludlum Ind Inc | Method of making low nitrogen alloys |
| US3854932A (en) * | 1973-06-18 | 1974-12-17 | Allegheny Ludlum Ind Inc | Process for production of stainless steel |
| JPS5318323B2 (en, 2012) * | 1973-12-31 | 1978-06-14 | ||
| US3971655A (en) * | 1974-08-21 | 1976-07-27 | Nippon Steel Corporation | Method for treatment of molten steel in a ladle |
-
1977
- 1977-01-31 JP JP871377A patent/JPS5394212A/ja active Granted
-
1978
- 1978-01-27 US US05/872,992 patent/US4170467A/en not_active Expired - Lifetime
- 1978-01-30 DE DE2803940A patent/DE2803940C2/de not_active Expired
- 1978-01-30 FR FR7802547A patent/FR2378860A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| US4170467A (en) | 1979-10-09 |
| JPS5394212A (en) | 1978-08-18 |
| DE2803940C2 (de) | 1982-02-11 |
| JPS5651210B2 (en, 2012) | 1981-12-03 |
| FR2378860B1 (en, 2012) | 1980-08-29 |
| DE2803940A1 (de) | 1978-08-03 |
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