FR2408661A1 - Procede de production d'aciers resulfures - Google Patents
Procede de production d'aciers resulfuresInfo
- Publication number
- FR2408661A1 FR2408661A1 FR7826591A FR7826591A FR2408661A1 FR 2408661 A1 FR2408661 A1 FR 2408661A1 FR 7826591 A FR7826591 A FR 7826591A FR 7826591 A FR7826591 A FR 7826591A FR 2408661 A1 FR2408661 A1 FR 2408661A1
- Authority
- FR
- France
- Prior art keywords
- resulfured
- steel
- production process
- steel production
- calcium
- 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
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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
L'INVENTION A POUR OBJET LA PRODUCTION D'UN ACIER RESULFURE POSSEDANT UNE MEILLEURE APTITUDE A L'USINAGE ET CONTENANT DE 0,05 A 0,20 DE SOUFRE EN POIDS. ON AJOUTE A UN BAIN D'ACIER EN FUSION UN METAL ALCALINO-TERREUX (PAR EXEMPLE LE CALCIUM OU UN ALLIAGE CONTENANT DU CALCIUM) POSSEDANT UNE GRANDE AFFINITE POUR LE SOUFRE, EN UNE QUANTITE SUFFISANTE POUR OBTENIR DANS L'ACIER, APRES SOLIDIFICATION, DES INCLUSIONS GLOBULAIRES ISOLEES DE SULFURE, L'ADDITION DE CALCIUM ETANT DE 0,02 A 0,20 EN POIDS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3855077 | 1977-09-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2408661A1 true FR2408661A1 (fr) | 1979-06-08 |
FR2408661B1 FR2408661B1 (fr) | 1985-09-13 |
Family
ID=10404202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7826591A Expired FR2408661B1 (fr) | 1977-09-15 | 1978-09-15 | Procede de production d'aciers resulfures |
Country Status (5)
Country | Link |
---|---|
US (1) | US4180397A (fr) |
DE (1) | DE2839637A1 (fr) |
FR (1) | FR2408661B1 (fr) |
GB (1) | GB2008154B (fr) |
IT (1) | IT1109115B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2542761A1 (fr) * | 1983-03-15 | 1984-09-21 | Vallourec | Procede de fabrication d'aciers a haute usinabilite |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE447580B (sv) * | 1979-04-30 | 1986-11-24 | Scandinavian Lancers | Injektionsmetallurgiskt forfarande vid framstellning av aluminiumtetade stal med lag kol- och kiselhalt |
US4286984A (en) * | 1980-04-03 | 1981-09-01 | Luyckx Leon A | Compositions and methods of production of alloy for treatment of liquid metals |
US4444590A (en) * | 1983-03-28 | 1984-04-24 | Esm Incorporated | Calcium-slag additive for steel desulfurization and method for making same |
FR2682686B1 (fr) * | 1991-10-17 | 1994-07-01 | Vallourec Ind | Acier au carbonne-manganese destine notamment au decolletage. |
US5397379A (en) * | 1993-09-22 | 1995-03-14 | Oglebay Norton Company | Process and additive for the ladle refining of steel |
US6179895B1 (en) | 1996-12-11 | 2001-01-30 | Performix Technologies, Ltd. | Basic tundish flux composition for steelmaking processes |
IT1296821B1 (it) * | 1997-12-01 | 1999-08-02 | Lucchini Centro Ricerche E Svi | Acciaio automatico al carbonio a lavorabilita' migliorata |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2321644B2 (de) * | 1973-04-28 | 1976-06-10 | Verfahren zum entschwefeln von stahlschmelzen | |
US3929464A (en) * | 1973-08-31 | 1975-12-30 | Union Carbide Corp | Desulfurization of molten ferrous metals |
JPS5412083B2 (fr) * | 1974-02-23 | 1979-05-19 | ||
DE2419070B2 (de) * | 1974-04-20 | 1976-03-04 | Thyssen Niederrhein AG Hütten- und Walzwerke, 4200 Oberhausen | Verfahren zur herstellung von stahl mit erhoehten zaehigkeitseigenschaften |
DE2419176B2 (de) * | 1974-04-20 | 1976-02-26 | Thyssen Niederrhein AG Hütten- und Walzwerke, 4200 Oberhausen | Verfahren zum einbringen von erdalkali-behandlungsmitteln in stahlschmelzen |
FR2287521A1 (fr) * | 1974-10-11 | 1976-05-07 | Ugine Aciers | Acier de decolletage |
US4066444A (en) * | 1974-11-09 | 1978-01-03 | Klockner-Werke Ag | Process for deoxidizing steel by means of molten aluminum |
US3998625A (en) * | 1975-11-12 | 1976-12-21 | Jones & Laughlin Steel Corporation | Desulfurization method |
JPS5261115A (en) * | 1975-11-14 | 1977-05-20 | Aikoh Co | Magnesium base iron melt treating material |
JPS5261110A (en) * | 1975-11-14 | 1977-05-20 | Aikoh Co | Desulfurization of iron melt |
DE2636400A1 (de) * | 1976-08-11 | 1978-02-16 | Mannesmann Ag | Verfahren zur verbesserung der kristallstruktur von im strang abgegossenem stahl |
-
1978
- 1978-09-12 US US05/941,600 patent/US4180397A/en not_active Expired - Lifetime
- 1978-09-12 DE DE19782839637 patent/DE2839637A1/de not_active Withdrawn
- 1978-09-15 FR FR7826591A patent/FR2408661B1/fr not_active Expired
- 1978-09-15 GB GB7836996A patent/GB2008154B/en not_active Expired
- 1978-09-15 IT IT69137/78A patent/IT1109115B/it active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2542761A1 (fr) * | 1983-03-15 | 1984-09-21 | Vallourec | Procede de fabrication d'aciers a haute usinabilite |
EP0123632A1 (fr) * | 1983-03-15 | 1984-10-31 | Vallourec | Procédé de fabrication d'aciers à haute usinabilité |
Also Published As
Publication number | Publication date |
---|---|
DE2839637A1 (de) | 1979-03-22 |
IT1109115B (it) | 1985-12-16 |
GB2008154A (en) | 1979-05-31 |
IT7869137A0 (it) | 1978-09-15 |
US4180397A (en) | 1979-12-25 |
FR2408661B1 (fr) | 1985-09-13 |
GB2008154B (en) | 1982-04-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |