IT954593B - Procedimento di affinazione degli acciai legati contenenti cromo e piu specialmente degli acciai inos sidabili - Google Patents

Procedimento di affinazione degli acciai legati contenenti cromo e piu specialmente degli acciai inos sidabili

Info

Publication number
IT954593B
IT954593B IT68042/72A IT6804272A IT954593B IT 954593 B IT954593 B IT 954593B IT 68042/72 A IT68042/72 A IT 68042/72A IT 6804272 A IT6804272 A IT 6804272A IT 954593 B IT954593 B IT 954593B
Authority
IT
Italy
Prior art keywords
refining process
steels
containing chrome
alloy
stainless steels
Prior art date
Application number
IT68042/72A
Other languages
English (en)
Original Assignee
Creusot Loire
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
Priority claimed from FR7119463A external-priority patent/FR2139642A1/fr
Priority claimed from FR7127016A external-priority patent/FR2147795A1/fr
Priority claimed from FR7127015A external-priority patent/FR2146900A1/fr
Priority claimed from FR7206824A external-priority patent/FR2173717A2/fr
Application filed by Creusot Loire filed Critical Creusot Loire
Application granted granted Critical
Publication of IT954593B publication Critical patent/IT954593B/it

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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/005—Manufacture 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
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/068—Decarburising
    • C21C7/0685—Decarburising of stainless steel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
IT68042/72A 1971-05-28 1972-04-01 Procedimento di affinazione degli acciai legati contenenti cromo e piu specialmente degli acciai inos sidabili IT954593B (it)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR7119463A FR2139642A1 (en) 1971-05-28 1971-05-28 Decarburising chrome steels by blowing with diluted carbon - monoxide through double/triple feed tuyeres
FR7127016A FR2147795A1 (en) 1971-07-23 1971-07-23 Decarburising chrome steels by blowing with diluted carbon - monoxide through double/triple feed tuyeres
FR7127015A FR2146900A1 (en) 1971-07-23 1971-07-23 Decarburising chrome steels by blowing with diluted carbon - monoxide through double/triple feed tuyeres
FR7206824A FR2173717A2 (en) 1972-02-29 1972-02-29 Decarburising chrome steels by blowing with diluted carbon - monoxide through double/triple feed tuyeres

Publications (1)

Publication Number Publication Date
IT954593B true IT954593B (it) 1973-09-15

Family

ID=27446111

Family Applications (1)

Application Number Title Priority Date Filing Date
IT68042/72A IT954593B (it) 1971-05-28 1972-04-01 Procedimento di affinazione degli acciai legati contenenti cromo e piu specialmente degli acciai inos sidabili

Country Status (9)

Country Link
US (1) US3844768A (it)
JP (2) JPS5147133B1 (it)
AU (1) AU467460B2 (it)
BE (1) BE781241A (it)
CA (1) CA971755A (it)
DE (1) DE2215435B2 (it)
GB (1) GB1354853A (it)
IT (1) IT954593B (it)
LU (1) LU65052A1 (it)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4139370A (en) * 1972-01-13 1979-02-13 Gesellschaft Fur Elektrometallurgie Mbh Method of refining ferro-alloys
US3990888A (en) * 1972-10-06 1976-11-09 Uddeholms Aktiebolag Decarburization of a metal melt
FR2291287A2 (fr) * 1974-11-13 1976-06-11 Creusot Loire Methode de soufflage en vue d'obtenir de tres basses teneurs en carbone dans les aciers au chrome
US3985550A (en) * 1975-01-23 1976-10-12 United States Steel Corporation Method of producing low sulfur steel
DE2504946C2 (de) * 1975-02-06 1980-04-30 Kloeckner-Werke Ag, 4100 Duisburg Verfahren und Vorrichtung zum Einschmelzen von Schrott, Eisenschwamm, Pellets oder dgl
US4138098A (en) * 1975-08-14 1979-02-06 Creusot-Loire Method of blowing smelting shaft furnaces and tuyeres used for said blowing
US4023676A (en) * 1976-09-20 1977-05-17 Armco Steel Corporation Lance structure and method for oxygen refining of molten metal
US4218049A (en) * 1978-07-17 1980-08-19 Pennsylvania Engineering Corporation Metallurgical vessel
DE2924761A1 (de) * 1979-06-20 1981-01-22 Kloeckner Humboldt Deutz Ag Verfahren und vorrichtung zur erzeugung eines konvektiven reaktions- systems zwischen einem reaktions-medium und einem schmelzbad
DE3045966A1 (de) * 1980-12-05 1982-07-08 Korf Industrie Und Handel Gmbh + Co Kg, 7570 Baden-Baden Verfahren zum schutz der duesen und der feuerfesten auskleidung eines gefaesses zum frischen einer metallschmelze
JPS5871343A (ja) * 1981-10-22 1983-04-28 Kobe Steel Ltd 溶融金属容器に設けるガス吹込み用ノズル
US4401466A (en) * 1981-11-30 1983-08-30 Korf Technologies, Inc. Process for protection of nozzles and refractory lining of a vessel for refining molten metal
US4657586A (en) * 1985-10-25 1987-04-14 Union Carbide Corporation Submerged combustion in molten materials
US4783219A (en) * 1985-11-13 1988-11-08 Nippon Kokan Kabushiki Kaisha Method for melting and reducing chrome ore
JPS62167811A (ja) * 1986-01-20 1987-07-24 Nippon Kokan Kk <Nkk> 溶融還元製鋼法
JPH0297611A (ja) * 1988-09-30 1990-04-10 Nippon Steel Corp 冷鉄源溶解方法
US5366537A (en) * 1993-01-05 1994-11-22 Steel Technology Corporation Fuel and oxygen addition for metal smelting or refining process
SE501381C2 (sv) * 1993-05-14 1995-01-30 Stiftelsen Metallurg Forsk Sätt att styra badtemperaturen vid konverterdrift
US5435833A (en) * 1993-09-30 1995-07-25 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process to convert non-ferrous metal such as copper or nickel by oxygen enrichment
KR100948927B1 (ko) * 2007-08-29 2010-03-23 주식회사 포스코 용철 제조용 풍구 및 이를 이용한 가스 취입 방법

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3003865A (en) * 1959-09-10 1961-10-10 Cameron Iron Works Inc Decarburizing process for alloy steels containing chromium
BE610265A (it) * 1960-11-18
NL296346A (it) * 1962-08-07
GB1148602A (en) * 1966-09-26 1969-04-16 Steel Co Of Wales Ltd Improvements in and relating to the treatment of metals
GB1253581A (en) * 1968-02-24 1971-11-17 Maximilianshuette Eisenwerk Improvements in processes and apparatus for making steel
US3725041A (en) * 1970-09-25 1973-04-03 Allegheny Ludlum Ind Inc Deoxidizing metal

Also Published As

Publication number Publication date
CA971755A (en) 1975-07-29
JPS5147133B1 (it) 1976-12-13
LU65052A1 (it) 1972-07-11
AU4173372A (en) 1973-11-08
JPS50110923A (it) 1975-09-01
AU467460B2 (en) 1975-12-04
GB1354853A (en) 1974-06-05
DE2215435A1 (de) 1973-01-04
DE2215435B2 (de) 1973-07-05
US3844768A (en) 1974-10-29
BE781241A (fr) 1972-07-17

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