FR2187921A1 - Low C high-chrome alloy steels prodn - without chrome slagging - Google Patents

Low C high-chrome alloy steels prodn - without chrome slagging

Info

Publication number
FR2187921A1
FR2187921A1 FR7320922A FR7320922A FR2187921A1 FR 2187921 A1 FR2187921 A1 FR 2187921A1 FR 7320922 A FR7320922 A FR 7320922A FR 7320922 A FR7320922 A FR 7320922A FR 2187921 A1 FR2187921 A1 FR 2187921A1
Authority
FR
France
Prior art keywords
chrome
prodn
slagging
low
alloy steels
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
FR7320922A
Other languages
French (fr)
Other versions
FR2187921B1 (en
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.)
Rheinstahl Huettenwerke AG
Original Assignee
Rheinstahl Huettenwerke AG
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 Rheinstahl Huettenwerke AG filed Critical Rheinstahl Huettenwerke AG
Publication of FR2187921A1 publication Critical patent/FR2187921A1/en
Application granted granted Critical
Publication of FR2187921B1 publication Critical patent/FR2187921B1/fr
Granted 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
    • C21C7/068—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)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

The alloyed steels are produced using a circular degassing plant incorporating a receptacle for the steel with an inlet pipe in a gas line, and a separate discharge pipe. A water-cooled blow lance is employed which has a nozzle and is introduced into the receptacle vacuum-tight so that its axis is directed towards the steel in the vessel.
FR7320922A 1972-06-10 1973-06-08 Low C high-chrome alloy steels prodn - without chrome slagging Granted FR2187921A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722228462 DE2228462A1 (en) 1972-06-10 1972-06-10 DEVICE AND METHOD FOR MANUFACTURING LOW-CARBON, HIGH-CHROME-ALLOY STEELS

Publications (2)

Publication Number Publication Date
FR2187921A1 true FR2187921A1 (en) 1974-01-18
FR2187921B1 FR2187921B1 (en) 1976-05-07

Family

ID=5847472

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7320922A Granted FR2187921A1 (en) 1972-06-10 1973-06-08 Low C high-chrome alloy steels prodn - without chrome slagging

Country Status (2)

Country Link
DE (1) DE2228462A1 (en)
FR (1) FR2187921A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU189326B (en) * 1983-08-26 1986-06-30 Lenin Kohaszati Muevek,Hu Process for production of steels with low or super-low carbon content with the regulation the end point of the carbon and blasting temperature
US5356456A (en) * 1992-10-07 1994-10-18 Kawasaki Steel Corporation Method of degassing and decarburizing stainless molten steel
DE19811722C1 (en) * 1998-03-18 1999-09-09 Sms Vacmetal Ges Fuer Vacuumme Apparatus for vacuum refining of metal, in particular, steel melts

Also Published As

Publication number Publication date
DE2228462A1 (en) 1973-12-20
FR2187921B1 (en) 1976-05-07

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Legal Events

Date Code Title Description
ST Notification of lapse