EP0546351A3 - Cored wire containing a passivated pyrophoric metal and its application - Google Patents

Cored wire containing a passivated pyrophoric metal and its application Download PDF

Info

Publication number
EP0546351A3
EP0546351A3 EP19920119560 EP92119560A EP0546351A3 EP 0546351 A3 EP0546351 A3 EP 0546351A3 EP 19920119560 EP19920119560 EP 19920119560 EP 92119560 A EP92119560 A EP 92119560A EP 0546351 A3 EP0546351 A3 EP 0546351A3
Authority
EP
European Patent Office
Prior art keywords
cored wire
application
passivated
wire containing
weight
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
EP19920119560
Other languages
German (de)
Other versions
EP0546351B1 (en
EP0546351A2 (en
Inventor
Detlef Dr. Missol
Friedrich Wolfsgruber
Helmut Dr. Lischka
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.)
Evonik Operations GmbH
Original Assignee
SKW Trostberg 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 SKW Trostberg AG filed Critical SKW Trostberg AG
Publication of EP0546351A2 publication Critical patent/EP0546351A2/en
Publication of EP0546351A3 publication Critical patent/EP0546351A3/en
Application granted granted Critical
Publication of EP0546351B1 publication Critical patent/EP0546351B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • C21C1/025—Agents used for dephosphorising or desulfurising
    • 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
    • C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Metal Extraction Processes (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Wire Bonding (AREA)
  • Conductive Materials (AREA)
  • Luminescent Compositions (AREA)
  • Resistance Heating (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Ropes Or Cables (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

The invention concerns a cored wire comprising a metal tube and a filling of magnesium or other pyrophoric metals passivated with from 0.5 to 5% by weight of organic nitrogen compounds. As the passivating agent, compounds from the series of the s-triazine and/or guanidine derivatives, preferably from 2 to 5% by weight of dicyandiamide, applied by means of an adhesion promoter, are preferred. The wires used in accordance with the invention serve to produce cast iron with spheroidal and vermicular graphite, to desulphurize pig iron melts or to produce metal alloys.
EP92119560A 1991-11-21 1992-11-16 Cored wire containing a passivated pyrophoric metal and its application Expired - Lifetime EP0546351B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4138231 1991-11-21
DE4138231A DE4138231C1 (en) 1991-11-21 1991-11-21

Publications (3)

Publication Number Publication Date
EP0546351A2 EP0546351A2 (en) 1993-06-16
EP0546351A3 true EP0546351A3 (en) 1993-12-29
EP0546351B1 EP0546351B1 (en) 1996-12-27

Family

ID=6445240

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92119560A Expired - Lifetime EP0546351B1 (en) 1991-11-21 1992-11-16 Cored wire containing a passivated pyrophoric metal and its application

Country Status (6)

Country Link
US (1) US5264023A (en)
EP (1) EP0546351B1 (en)
JP (1) JPH05222427A (en)
AT (1) ATE146822T1 (en)
DE (2) DE4138231C1 (en)
TR (1) TR26635A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4236727C2 (en) * 1992-10-30 1997-02-06 Sueddeutsche Kalkstickstoff Melting agent and its use
DE4324494C2 (en) * 1993-07-21 1995-04-20 Sueddeutsche Kalkstickstoff Process for treating molten cast iron
US6063347A (en) * 1998-07-09 2000-05-16 Betzdearborn Inc. Inhibition of pyrophoric iron sulfide activity
US6328943B1 (en) 1998-07-09 2001-12-11 Betzdearborn Inc. Inhibition of pyrophoric iron sulfide activity
US20080314199A1 (en) * 2007-05-17 2008-12-25 Leslie Wade Niemi Enhanced Alloy Recovery In Molten Steel Baths Utilizing Cored Wires Doped With Deoxidants
JP5600639B2 (en) * 2011-04-28 2014-10-01 株式会社神戸製鋼所 Wire for REM addition
US9045809B2 (en) 2012-05-05 2015-06-02 Nu-Iron Technology, Llc Reclaiming and inhibiting activation of DRI fines
DE102012013662A1 (en) * 2012-07-10 2014-01-16 Mechthilde Döring-Freißmuth Filled wire and process for the treatment of molten iron
RU2614915C1 (en) * 2015-10-16 2017-03-30 Общество с ограниченной ответственностью "РЕГИОНАЛЬНАЯ ДИЛЕРСКАЯ КОМПАНИЯ" Powder wire for out-of-furnace treatment of cast iron in ladle
US10513753B1 (en) 2019-01-03 2019-12-24 2498890 Ontario Inc. Systems, methods, and cored wires for treating a molten metal
RU2723863C1 (en) * 2019-08-05 2020-06-17 Общество с ограниченной ответственностью Новые перспективные продукты Технология Wire with filler for out-of-furnace treatment of metallurgical melts
JP7423079B2 (en) * 2021-06-21 2024-01-29 株式会社エコ・プロジェクト Deodorant manufacturing method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3915693A (en) * 1972-06-21 1975-10-28 Robert T C Rasmussen Process, structure and composition relating to master alloys in wire or rod form
EP0005152A1 (en) * 1978-04-27 1979-11-14 Caterpillar Tractor Co. Filled tubular article for controlled insertion into molten metal
EP0066305A1 (en) * 1981-05-27 1982-12-08 Metallgesellschaft Ag Additive in wire form for treating molten metals
DE3908815A1 (en) * 1989-03-17 1990-09-20 Sueddeutsche Kalkstickstoff METHOD FOR PASSIVATING PYROPHORIC METALS

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881913A (en) * 1974-02-19 1975-05-06 Ivan Andreevich Barannik Method of producing granules of magnesium and its alloys
US3998625A (en) * 1975-11-12 1976-12-21 Jones & Laughlin Steel Corporation Desulfurization method
WO1979000398A1 (en) * 1977-12-16 1979-07-12 Foseco Int Desulphurisation of ferrous metals
US4186000A (en) * 1978-08-25 1980-01-29 The Dow Chemical Company Salt-coated magnesium granules
US4279641A (en) * 1978-08-25 1981-07-21 The Dow Chemical Company Salt-coated magnesium granules
DE3739156A1 (en) * 1987-11-19 1989-06-01 Sueddeutsche Kalkstickstoff NITROGEN ADDITIVE FOR STEEL MELTING

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3915693A (en) * 1972-06-21 1975-10-28 Robert T C Rasmussen Process, structure and composition relating to master alloys in wire or rod form
EP0005152A1 (en) * 1978-04-27 1979-11-14 Caterpillar Tractor Co. Filled tubular article for controlled insertion into molten metal
EP0066305A1 (en) * 1981-05-27 1982-12-08 Metallgesellschaft Ag Additive in wire form for treating molten metals
DE3908815A1 (en) * 1989-03-17 1990-09-20 Sueddeutsche Kalkstickstoff METHOD FOR PASSIVATING PYROPHORIC METALS
EP0388816A1 (en) * 1989-03-17 1990-09-26 SKW Trostberg Aktiengesellschaft Passivation of pyrophoric metals

Also Published As

Publication number Publication date
EP0546351B1 (en) 1996-12-27
US5264023A (en) 1993-11-23
DE59207767D1 (en) 1997-02-06
JPH05222427A (en) 1993-08-31
TR26635A (en) 1995-03-15
ATE146822T1 (en) 1997-01-15
EP0546351A2 (en) 1993-06-16
DE4138231C1 (en) 1992-10-22

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