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GB2281312B - Process for decarburizing carbon-containing molten metal - Google Patents

Process for decarburizing carbon-containing molten metal

Info

Publication number
GB2281312B
GB2281312B GB9415572A GB9415572A GB2281312B GB 2281312 B GB2281312 B GB 2281312B GB 9415572 A GB9415572 A GB 9415572A GB 9415572 A GB9415572 A GB 9415572A GB 2281312 B GB2281312 B GB 2281312B
Authority
GB
United Kingdom
Prior art keywords
molten metal
containing molten
decarburizing
carbon
decarburizing carbon
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.)
Expired - Fee Related
Application number
GB9415572A
Other versions
GB2281312A (en
GB9415572D0 (en
Inventor
H J Kemmer
Alok Choudhury
Georg Jarczyk
Harald Scholz
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.)
Leybold Durferrit GmbH
ALD Vacuum Technologies GmbH
Original Assignee
Leybold Durferrit GmbH
ALD Vacuum Technologies GmbH
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 Leybold Durferrit GmbH, ALD Vacuum Technologies GmbH filed Critical Leybold Durferrit GmbH
Publication of GB9415572D0 publication Critical patent/GB9415572D0/en
Publication of GB2281312A publication Critical patent/GB2281312A/en
Application granted granted Critical
Publication of GB2281312B publication Critical patent/GB2281312B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/04—Refining by applying a vacuum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/02—Crucible or pot furnaces with tilting or rocking arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/04—Crucible or pot furnaces adapted for treating the charge in vacuum or special atmosphere
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/06—Crucible or pot furnaces heated electrically, e.g. induction crucible furnaces with or without any other source of heat
    • F27B14/061—Induction furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F27D2003/161—Introducing a fluid jet or current into the charge through a porous element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Manufacture And Refinement Of Metals (AREA)
GB9415572A 1993-08-20 1994-08-02 Process for decarburizing carbon-containing molten metal Expired - Fee Related GB2281312B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4328045A DE4328045C2 (en) 1993-08-20 1993-08-20 Process for decarburizing carbon-containing metal melts

Publications (3)

Publication Number Publication Date
GB9415572D0 GB9415572D0 (en) 1994-09-21
GB2281312A GB2281312A (en) 1995-03-01
GB2281312B true GB2281312B (en) 1997-04-23

Family

ID=6495643

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9415572A Expired - Fee Related GB2281312B (en) 1993-08-20 1994-08-02 Process for decarburizing carbon-containing molten metal

Country Status (3)

Country Link
JP (1) JPH0776715A (en)
DE (1) DE4328045C2 (en)
GB (1) GB2281312B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3531218B2 (en) * 1994-06-20 2004-05-24 大同特殊鋼株式会社 Method for producing low carbon chromium-containing steel
FR2835613B1 (en) * 2002-02-06 2004-10-01 Air Liquide METHOD AND DEVICE FOR DETERMINING THE CONCENTRATION OF CARBON IN LIQUID STEEL
US8365808B1 (en) 2012-05-17 2013-02-05 Almex USA, Inc. Process and apparatus for minimizing the potential for explosions in the direct chill casting of aluminum lithium alloys
CN103567399B (en) * 2012-07-27 2017-02-08 西安蓝海冶金设备有限公司 Periodic amorphous mother alloy vacuum induction melting furnace
US9616493B2 (en) 2013-02-04 2017-04-11 Almex USA, Inc. Process and apparatus for minimizing the potential for explosions in the direct chill casting of aluminum lithium alloys
CN103243199A (en) * 2013-05-27 2013-08-14 无锡市银斌冶金设备科技有限公司 Induction furnace and process for refining extra-low-carbon stainless steel by adopting same
US9936541B2 (en) * 2013-11-23 2018-04-03 Almex USA, Inc. Alloy melting and holding furnace
WO2016133551A1 (en) 2015-02-18 2016-08-25 Inductotherm Corp. Electric induction melting and holding furnaces for reactive metals and alloys
WO2020165795A1 (en) * 2019-02-13 2020-08-20 Sabic Global Technologies B.V. Steel decarburization using carbon dioxide

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB869953A (en) * 1957-02-27 1961-06-07 Ruhrstahl Ag Improvements in or relating to the refining of steel
GB898986A (en) * 1959-03-24 1962-06-20 Ruhrstahl Ag Improvements in or relating to the refining of metal
GB908471A (en) * 1958-12-18 1962-10-17 Foundry Services Int Ltd Improvements in or relating to the treatment of molten steel
GB1082413A (en) * 1965-02-04 1967-09-06 Krupp Ag Huettenwerke Vacuum degassing of molten metal
GB1136758A (en) * 1964-12-23 1968-12-18 Krupp Ag Huettenwerke Improvements in the manufacture of low-carbon steel
GB1218494A (en) * 1968-08-28 1971-01-06 Reisholz Stahl & Roehrenwerk Production of vacuum-deoxidised steel
GB1375072A (en) * 1972-01-17 1974-11-27
JPS6044711A (en) * 1983-08-22 1985-03-09 フオスタ−・ホイ−ラ−・エナ−ジイ・コ−ポレイシヨン Fluidized bed type combustion apparatus
WO1994029488A1 (en) * 1993-06-04 1994-12-22 Nippon Steel Corporation Method of manufacturing low carbon molten steel by vacuum degasification and decarbonization
JPH10149414A (en) * 1996-09-19 1998-06-02 Dainippon Printing Co Ltd Card case having function for displaying recording content of ic card

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD104559A1 (en) * 1973-06-08 1974-03-12
SE443373B (en) * 1977-03-31 1986-02-24 Union Carbide Corp SET TO MAKE COMPLETE METAL MOLDING WITH IMPROVED SURFACE QUALITY
AU525023B2 (en) * 1979-05-24 1982-10-14 Sumitomo Metal Industries Ltd. Carbon steel and low alloy steel with bottom blowing b.o.f.
SU872584A1 (en) * 1980-02-06 1981-10-15 Иркутский Филиал Всесоюзного Научно-Исследовательского И Проектного Института Алюминиевой,Магниевой И Электродной Промышленности Device for liquid metal refining with gases
JPS57145917A (en) * 1981-03-03 1982-09-09 Sumitomo Metal Ind Ltd Refining method for high chromium steel
JPS5873732A (en) * 1981-10-26 1983-05-04 Nippon Steel Corp Refining method of metal
DE3617303A1 (en) * 1986-05-23 1987-11-26 Leybold Heraeus Gmbh & Co Kg METHOD FOR MELTING AND DEGASSING PIECE MATERIAL
DE3706742A1 (en) * 1987-02-28 1988-09-08 Salzgitter Peine Stahlwerke METHOD AND DEVICE FOR DEGASSING TREATMENT OF A STEEL MELT IN A VACUUM SYSTEM
DE3918155A1 (en) * 1989-06-03 1990-12-06 Messer Griesheim Gmbh METHOD FOR CARBURIZING CHROMIUM-CONTAINED STEEL MELTS MORE THAN 10% CR CONTENT
JPH04202710A (en) * 1990-11-30 1992-07-23 Daido Steel Co Ltd Vacuum refining method

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB869953A (en) * 1957-02-27 1961-06-07 Ruhrstahl Ag Improvements in or relating to the refining of steel
GB908471A (en) * 1958-12-18 1962-10-17 Foundry Services Int Ltd Improvements in or relating to the treatment of molten steel
GB898986A (en) * 1959-03-24 1962-06-20 Ruhrstahl Ag Improvements in or relating to the refining of metal
GB1136758A (en) * 1964-12-23 1968-12-18 Krupp Ag Huettenwerke Improvements in the manufacture of low-carbon steel
GB1082413A (en) * 1965-02-04 1967-09-06 Krupp Ag Huettenwerke Vacuum degassing of molten metal
GB1218494A (en) * 1968-08-28 1971-01-06 Reisholz Stahl & Roehrenwerk Production of vacuum-deoxidised steel
GB1375072A (en) * 1972-01-17 1974-11-27
JPS6044711A (en) * 1983-08-22 1985-03-09 フオスタ−・ホイ−ラ−・エナ−ジイ・コ−ポレイシヨン Fluidized bed type combustion apparatus
WO1994029488A1 (en) * 1993-06-04 1994-12-22 Nippon Steel Corporation Method of manufacturing low carbon molten steel by vacuum degasification and decarbonization
JPH10149414A (en) * 1996-09-19 1998-06-02 Dainippon Printing Co Ltd Card case having function for displaying recording content of ic card

Also Published As

Publication number Publication date
JPH0776715A (en) 1995-03-20
DE4328045A1 (en) 1995-02-23
DE4328045C2 (en) 2001-02-08
GB2281312A (en) 1995-03-01
GB9415572D0 (en) 1994-09-21

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030802