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FR2438091A1 - Procede et appareillage pour reduire la teneur en inclusions des aciers et pour affiner leur structure - Google Patents

Procede et appareillage pour reduire la teneur en inclusions des aciers et pour affiner leur structure

Info

Publication number
FR2438091A1
FR2438091A1 FR7924400A FR7924400A FR2438091A1 FR 2438091 A1 FR2438091 A1 FR 2438091A1 FR 7924400 A FR7924400 A FR 7924400A FR 7924400 A FR7924400 A FR 7924400A FR 2438091 A1 FR2438091 A1 FR 2438091A1
Authority
FR
France
Prior art keywords
steels
refining
reducing
inclusion content
magnesium
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
Application number
FR7924400A
Other languages
English (en)
Other versions
FR2438091B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vasipari Kutato Intezet
Original Assignee
Vasipari Kutato Intezet
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vasipari Kutato Intezet filed Critical Vasipari Kutato Intezet
Publication of FR2438091A1 publication Critical patent/FR2438091A1/fr
Application granted granted Critical
Publication of FR2438091B1 publication Critical patent/FR2438091B1/fr
Expired legal-status Critical Current

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
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/06—Deoxidising, e.g. killing
    • 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
    • C21C7/0081—Treating and handling under pressure

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)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

PROCEDE DE REDUCTION DE LA TENEUR EN INCLUSION DES ACIERS ET D'AFFINAGE DE LEUR STRUCTURE. IL CONSISTE A ELIMINER LES INCLUSIONS SOUS UNE PRESSION D'AU MOINS 1 ATM AU MOYEN D'UN ALLIAGE CONTENANT DU CALCIUM ETOU DU MAGNESIUM, PUIS A FAIRE LE VIDE POUR FAIRE EVAPORER LE CALCIUM ET LE MAGNESIUM CONTENUS DANS L'ACIER.
FR7924400A 1978-10-04 1979-10-01 Procede et appareillage pour reduire la teneur en inclusions des aciers et pour affiner leur structure Expired FR2438091B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU78VA1535A HU179333B (en) 1978-10-04 1978-10-04 Method and apparatus for decreasing the unclusion contents and refining the structure of steels

Publications (2)

Publication Number Publication Date
FR2438091A1 true FR2438091A1 (fr) 1980-04-30
FR2438091B1 FR2438091B1 (fr) 1985-10-11

Family

ID=11002364

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7924400A Expired FR2438091B1 (fr) 1978-10-04 1979-10-01 Procede et appareillage pour reduire la teneur en inclusions des aciers et pour affiner leur structure

Country Status (10)

Country Link
US (1) US4294611A (fr)
AT (1) AT388568B (fr)
BE (1) BE879176A (fr)
CS (1) CS259504B2 (fr)
FR (1) FR2438091B1 (fr)
GB (1) GB2043113B (fr)
HU (1) HU179333B (fr)
PL (1) PL120419B1 (fr)
SU (1) SU882416A3 (fr)
YU (1) YU240179A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0322763A3 (en) * 1987-12-25 1990-02-07 Nkk Corporation Method for cleaning molten metal and apparatus therefor

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4465513A (en) * 1983-10-03 1984-08-14 Union Carbide Corporation Process to control the shape of inclusions in steels
DE3935014A1 (de) * 1989-10-20 1991-04-25 Pfeiffer Vakuumtechnik Mehrkammer-vakuumanlage
DE60331111D1 (de) 2002-11-19 2010-03-11 Hitachi Metals Ltd Verfahren zur Herstellung von martensitaushärtendem Stahl
CN1867685B (zh) 2003-10-08 2010-07-21 日立金属株式会社 制造钢锭的方法
CN103305659B (zh) * 2012-03-08 2016-03-30 宝山钢铁股份有限公司 磁性优良的无取向电工钢板及其钙处理方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1176680B (de) * 1953-09-29 1964-08-27 Gutehoffnungshuette Sterkrade Verfahren zum Behandeln von Gusseisen- oder Stahlschmelzen mit Magnesium
US3218156A (en) * 1963-10-16 1965-11-16 Howe Sound Co Process for vacuum deoxidation of alloys
FR1475593A (fr) * 1966-04-14 1967-03-31 Asea Ab Traitement sous pression d'un bain en fusion et dispositif pour la mise en oeuvre dece procédé
FR2227331A1 (fr) * 1973-04-28 1974-11-22 Thyssen Niederrhein Ag

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB935065A (en) * 1958-09-25 1963-08-28 Birmingham Small Arms Co Ltd Improvements in or relating to the melting of steels
US3336132A (en) * 1964-03-09 1967-08-15 Crucible Steel Co America Stainless steel manufacturing process and equipment
DE1433570A1 (de) * 1964-05-20 1968-11-07 Kaiser Ind Corp Kontinuierliches Verfahren und Vorrichtung zur Erzeugung von Gusskoerpern aus oxydierbaren Metallen
GB1054885A (fr) * 1964-06-08
US3467167A (en) * 1966-09-19 1969-09-16 Kaiser Ind Corp Process for continuously casting oxidizable metals
DE1802991B2 (de) * 1968-10-14 1972-02-17 Süddeutsche Kalkstickstoff-Werke AG, 8223 Trostberg Verwendung einer desoxydationslegierung zur herstellung von zumstranggiessen geeigneten stahlschmelzen
DE1904442B2 (de) * 1969-01-30 1978-01-19 Hoesch Werke Ag, 4600 Dortmund Verfahren zum vakuumfrischen von metallschmelzen
US3702243A (en) * 1969-04-15 1972-11-07 Nat Steel Corp Method of preparing deoxidized steel
DE1965136B1 (de) * 1969-12-27 1971-02-25 Standard Messo Duisburg Vorrichtung zur Pfannen-Entgasung von Stahl- oder anderen Metallschmelzen
DE2208736C2 (de) * 1972-02-24 1975-06-05 Stahlwerke Suedwestfalen Ag, 5930 Huettextal-Geisweid Verfahren zum Herstellen legierter Stähle
GB1494668A (en) * 1975-06-05 1977-12-07 Sumitomo Metal Ind Process for the addition of calcium to molten steel
DE2527156B2 (de) * 1975-06-18 1980-09-04 Thyssen Niederrhein Ag Huetten- Und Walzwerke, 4200 Oberhausen Verfahren zur Vorbehandlung einer Stahlschmelze beim Stranggießen
IT1047585B (it) * 1975-09-26 1980-10-20 Centro Speriment Metallurg Perfezionamento alla disossidazione e desolforazione dell acciaio
US3998625A (en) * 1975-11-12 1976-12-21 Jones & Laughlin Steel Corporation Desulfurization method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1176680B (de) * 1953-09-29 1964-08-27 Gutehoffnungshuette Sterkrade Verfahren zum Behandeln von Gusseisen- oder Stahlschmelzen mit Magnesium
US3218156A (en) * 1963-10-16 1965-11-16 Howe Sound Co Process for vacuum deoxidation of alloys
FR1475593A (fr) * 1966-04-14 1967-03-31 Asea Ab Traitement sous pression d'un bain en fusion et dispositif pour la mise en oeuvre dece procédé
FR2227331A1 (fr) * 1973-04-28 1974-11-22 Thyssen Niederrhein Ag

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0322763A3 (en) * 1987-12-25 1990-02-07 Nkk Corporation Method for cleaning molten metal and apparatus therefor
AU605949B2 (en) * 1987-12-25 1991-01-24 Nkk Corporation Method for cleaning molten metal and apparatus therefor

Also Published As

Publication number Publication date
FR2438091B1 (fr) 1985-10-11
US4294611A (en) 1981-10-13
PL120419B1 (en) 1982-02-27
CS259504B2 (en) 1988-10-14
GB2043113A (en) 1980-10-01
SU882416A3 (ru) 1981-11-15
AT388568B (de) 1989-07-25
PL218728A1 (fr) 1980-06-16
GB2043113B (en) 1983-01-12
YU240179A (en) 1983-02-28
BE879176A (fr) 1980-02-01
HU179333B (en) 1982-09-28
ATA648379A (de) 1983-10-15

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Legal Events

Date Code Title Description
ST Notification of lapse