EP0193948A1 - Dispositif et procédé pour maintenir à température des bains métalliques - Google Patents

Dispositif et procédé pour maintenir à température des bains métalliques Download PDF

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Publication number
EP0193948A1
EP0193948A1 EP86102919A EP86102919A EP0193948A1 EP 0193948 A1 EP0193948 A1 EP 0193948A1 EP 86102919 A EP86102919 A EP 86102919A EP 86102919 A EP86102919 A EP 86102919A EP 0193948 A1 EP0193948 A1 EP 0193948A1
Authority
EP
European Patent Office
Prior art keywords
furnace chamber
cover
inlet
outlet
pressure
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
EP86102919A
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German (de)
English (en)
Other versions
EP0193948B1 (fr
Inventor
Günther Dipl.-Ing. Beele
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6264177&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0193948(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Priority to AT86102919T priority Critical patent/ATE50601T1/de
Publication of EP0193948A1 publication Critical patent/EP0193948A1/fr
Application granted granted Critical
Publication of EP0193948B1 publication Critical patent/EP0193948B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C21C1/10—Making spheroidal graphite cast-iron
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/08—Making cast-iron alloys
    • C22C33/10—Making cast-iron alloys including procedures for adding magnesium

Definitions

  • the invention relates to a device for storing and / or increasing or maintaining the temperature level of molten metals, in particular for keeping warm magnesium, in particular pure magnesium cast iron castings, with an inlet and an outlet furnace chamber which can be covered by a lid .
  • This can be, for example, an oven device which has the basic design features of a known channel induction hot lime kiln.
  • the invention relates to a method for keeping spherical and / or vermicular cast iron melts treated with magnesium, in particular pure magnesium, in a heatable furnace chamber which receives the cast iron melt and which can be covered by a cover.
  • the generic device for storing and / or increasing or maintaining the temperature level of molten metals is characterized in that the lid of the furnace chamber is brought into contact with the latter in a pressure-tight manner and the furnace chamber has a feed for a medium under pressure.
  • spheroidal cast iron melts treated with magnesium, in particular pure magnesium can also be kept at the desired casting temperature almost indefinitely. A drop in the magnesium content or the decay of the spheroidal iron melt is largely slowed down.
  • the device according to the invention is advantageously designed so that almost all known warming devices such.
  • B Induction channel furnaces can be converted accordingly with extremely little effort.
  • the inlet and the outlet which according to a preferred development of the device according to the invention are formed by a common pouring and pouring siphon, can likewise be closed in a pressure-tight manner in a manner analogous to that of the furnace chamber.
  • This will not be necessary in many applications of the device according to the invention, since only a slight, for example, magnesium erosion via the common one Pouring and pouring siphon takes place. In the applications where the highest quality requirements have to be set, this development of the invention represents an optimization measure to be recommended.
  • the pressure-tight sealability of the furnace chamber cover or the closure cover can be achieved by means of a sealing strip.
  • the cover of the furnace chamber can have this sealing strip on its sealing surfaces which bear against the furnace chamber or the sealing cover on its sealing surfaces against the walls of the common pouring and pouring siphon, which engages in sealing joints provided on the boundary walls of the furnace chamber or on the siphon walls.
  • the sealing strip preferably has a T-shaped cross-sectional profile.
  • the device according to the invention is preferably designed as a tiltable electric induction furnace, the inductor on lower furnace section, as far as possible vertically below the furnace chamber; is arranged.
  • This lower vertical arrangement is particularly advantageous for reducing undesirable slag suspension approaches.
  • an inert gas under pressure is preferably used, nitrogen or argon having proven particularly useful.
  • the inert gas is supplied to the inside of the furnace with an overpressure of 1 to 6 bar.
  • the pressure in the furnace chamber is regulated in the case of nodular cast iron melts treated with pure magnesium in such a way that the breakdown of the magnesium in the melt is almost zero.
  • the device according to the invention for keeping a spheroidal cast iron melt treated with pure magnesium is generally designated 1.
  • This device has an oven chamber 3, which is provided with an inlet and an outlet, which is designed as a common pouring and pouring siphon 2.
  • the device 1 is arranged on foundations 23 and a furnace support 24 and can be pivoted about a pivot point 20 by means of a pivot cylinder 19.
  • the Swivel cylinder 19 is articulated to a lower support bearing 25 and an upper support bearing 26.
  • the furnace chamber 3 can be closed in a pressure-tight manner at the top by a cover 4.
  • the sealing surfaces 4b on the front area of the furnace chamber 3 has a T-shaped sealing strip 7 which engages in a sealing joint 8.
  • the frontal areas of the furnace chamber 3 and the cover 4 and the structural design of the sealing strips 7 and the sealing joints 8 is chosen so that after the furnace chamber 3 is closed by the cover 4 by means of a refractory mass (e.g. corundum), it is additionally covered can be used to increase the tightness of the furnace chamber.
  • the lid 4 is clamped with the oven chamber 3 in a pressure-tight manner via a closing device 11 by means of a wedged tie rod 10.
  • the structural design of the seal of the pivotable closure cap 6 of the common pouring and pouring siphon 2 can be designed completely analogously to the pressure-tight seal of the furnace chamber 3. However, for reasons of simplification, this has been omitted in the drawing.
  • Both the furnace chamber 3 and the common pouring and pouring siphon 2, like the cover 4 and the closure cover 6, are lined on the inside with a refractory mass 12: this refractory mass is on the upper regions of the furnace chamber 3 and on the lower regions of the cover 4 designed in such a way that the sealing surfaces of the cover 4 are completely shielded from the furnace interior 13.
  • the supply opening 5 for supplying the pressurized medium, for. B. argon, and on the other hand, the pressure relief valve 22 of the furnace chamber 3 is arranged on the lid 4 of the furnace chamber 3.
  • the electrical connections between the are not shown in detail Inert gas supply 5, the closing device 11 and the pressure relief valve 15 for the already described control or circuitry connection of these elements.
  • the inductor 16 for heating the furnace chamber 3 is almost perpendicularly below the furnace chamber.
  • the inductor 16 has an energy supply 27 and is surrounded by a cooling flange 18 on the furnace chamber side. It is also essential in the context of the invention that the inductor 16 has a special induction channel 28 which is connected to the furnace interior 13.
  • the inductor 16 is to be designed in such a way that it can easily be flanged to the furnace chamber or fastened in a suitable manner.
EP86102919A 1985-03-05 1986-03-05 Dispositif et procédé pour maintenir à température des bains métalliques Expired - Lifetime EP0193948B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86102919T ATE50601T1 (de) 1985-03-05 1986-03-05 Vorrichtung und verfahren zum warmhalten von fluessigen metallschmelzen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3507648 1985-03-05
DE19853507648 DE3507648A1 (de) 1985-03-05 1985-03-05 Vorrichtung und verfahren zum warmhalten von fluessigen metallschmelzen

Publications (2)

Publication Number Publication Date
EP0193948A1 true EP0193948A1 (fr) 1986-09-10
EP0193948B1 EP0193948B1 (fr) 1990-02-28

Family

ID=6264177

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86102919A Expired - Lifetime EP0193948B1 (fr) 1985-03-05 1986-03-05 Dispositif et procédé pour maintenir à température des bains métalliques

Country Status (10)

Country Link
US (2) US4638980A (fr)
EP (1) EP0193948B1 (fr)
JP (1) JPS61252484A (fr)
CN (1) CN1012839B (fr)
AT (1) ATE50601T1 (fr)
CA (1) CA1243843A (fr)
DE (2) DE3507648A1 (fr)
ES (1) ES8708259A1 (fr)
SU (1) SU1494855A3 (fr)
YU (1) YU45772B (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5271539A (en) * 1986-06-09 1993-12-21 Kawasaki Steel Corporation Pressure type automatic pouring furnace for casting
DE3724200A1 (de) * 1987-07-22 1989-02-02 Kloeckner Humboldt Deutz Ag Verfahren zur tiefentschwefelung von basiseisen fuer die stahl- und gusseisenherstellung
JPH01245120A (ja) * 1988-02-09 1989-09-29 Westofen Gmbh 流動可能な媒体を計量する方法及び装置
IT1233232B (it) * 1989-07-25 1992-03-20 Weber Srl Procedimento di colata allo stato semiliquido in continuo e forno perla sua realizzazione
JP2841759B2 (ja) * 1990-07-04 1998-12-24 富士電機株式会社 真空誘導炉
JPH0579769A (ja) * 1991-09-20 1993-03-30 Fuji Electric Co Ltd 押さえ蓋を備える高速溶解誘導炉
DE19504415B4 (de) * 1994-06-24 2004-12-02 Denso Corp., Kariya Warmhalteofen für eine Metallschmelze und Verfahren zur Aufnahme von Metallschmelze in einem derartigen Ofen
FR2726211B1 (fr) * 1994-10-31 1997-01-17 Seva Une poche de chauffage et de coulee de metaux liquides
PT1124941E (pt) 1998-10-28 2004-02-27 Genentech Inc Processo para recuperar polipeptidos heterologos a partir de celulas bacterianas
DE10058681B4 (de) * 2000-11-25 2006-02-23 Inductotherm Coating Equipment S.A. Metallurgisches Gefäß zur Aufnahme einer Schmelze, Verfahren zum Wechsel einer Induktionsheizeinrichtung eines metallurgischen Gefäßes und Stopfen zum Verschließen eines Verbindungskanals
US20030080480A1 (en) * 2001-10-01 2003-05-01 Richard Larouche Apparatus for treating molten metal having a sealed treatment zone
US6830723B2 (en) * 2001-10-01 2004-12-14 Alcan International Limited Apparatus for treating molten metal having a sealed treatment zone
CN100400198C (zh) * 2003-08-07 2008-07-09 李华伦 镁薄板带材双辊高速连铸生产线
CN100463744C (zh) * 2006-05-09 2009-02-25 赣南师范学院 镁合金真空虹吸出炉浇铸机
AU2013385931B2 (en) * 2013-04-11 2017-04-06 Posco Manganese-containing molten steel production method, temperature-holding furnace and manganese-containing molten steel production equipment using temperature-holding furnace
CN103743235B (zh) * 2013-12-31 2015-08-12 常州市卓信机电设备制造有限公司 一种无芯气压保温浇注炉
CN104841894A (zh) * 2015-04-27 2015-08-19 乔治费歇尔汽车产品(昆山)有限公司 一种气压浇注炉快速调质工艺方法
CN108326260B (zh) * 2018-01-26 2019-12-03 济南韶欣耐磨材料有限公司 一种耐磨锤式破碎机锤头的制造方法
CN111889660B (zh) * 2020-08-04 2022-04-29 天津宏镁科技有限公司 一种镁合金快速熔化装置及其定量控制出料系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB765423A (en) * 1954-03-06 1957-01-09 Mond Nickel Co Ltd Improvements in methods of and apparatus for the treatment of molten iron and steel
DE1176680B (de) * 1953-09-29 1964-08-27 Gutehoffnungshuette Sterkrade Verfahren zum Behandeln von Gusseisen- oder Stahlschmelzen mit Magnesium
DE1433402A1 (de) 1964-05-14 1969-02-20 Allg Elek Citaets Ges Aeg Tele Druckpfanne mit Einfuell- und Abgiessstutzen
DE2208960A1 (de) 1972-02-25 1973-08-30 Kloeckner Humboldt Deutz Ag Vorrichtung zum einfuehren stark reagierender zusaetze in eine schmelze, insbesondere zum einfuehren von magnesium in eine gusseisenschmelze
US3764305A (en) * 1967-02-10 1973-10-09 E A As Method of storage and heat retaining for treated nodular cast iron

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2648715A (en) * 1950-06-06 1953-08-11 Lindberg Eng Co Furnace for molten metal
US2937789A (en) * 1953-10-16 1960-05-24 Ajax Magnethermic Corp Controlled metal dispensing
US2892739A (en) * 1954-10-01 1959-06-30 Honeywell Regulator Co Crystal growing procedure
DE1180487B (de) * 1962-02-14 1964-10-29 Ajax Magnethermic Corp Druckmittelbeaufschlagter Giessofen
GB1054885A (fr) * 1964-06-08
SE308917B (fr) * 1965-04-14 1969-03-03 Asea Ab
SE327053B (fr) * 1967-10-13 1970-08-10 Asea Ab
DE2307846B2 (de) * 1973-02-17 1976-08-19 Brown, Boveri & Cie Ag, 6800 Mannheim Verfahren und anordnung zum selbsttaetigen entnehmen von schmelzfluessigem metall

Patent Citations (6)

* 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
GB765423A (en) * 1954-03-06 1957-01-09 Mond Nickel Co Ltd Improvements in methods of and apparatus for the treatment of molten iron and steel
DE1433402A1 (de) 1964-05-14 1969-02-20 Allg Elek Citaets Ges Aeg Tele Druckpfanne mit Einfuell- und Abgiessstutzen
US3764305A (en) * 1967-02-10 1973-10-09 E A As Method of storage and heat retaining for treated nodular cast iron
US3764305B1 (fr) * 1967-02-10 1986-08-12
DE2208960A1 (de) 1972-02-25 1973-08-30 Kloeckner Humboldt Deutz Ag Vorrichtung zum einfuehren stark reagierender zusaetze in eine schmelze, insbesondere zum einfuehren von magnesium in eine gusseisenschmelze

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DER IN DER ZEITSCHRIFT GIESSEREIPRAXIS, vol. 21, 1983, pages 320 - 334
GIESSEREI-PRAXIS, Nr. 21, 1983, Seiten 320-334, Berlin, DD; R. SCHLÜSSELBERGER et al.: "Langzeit-Warmhalten von magnesiumbehandelten Gusseisenschmelzen" *

Also Published As

Publication number Publication date
DE3507648A1 (de) 1986-09-11
SU1494855A3 (ru) 1989-07-15
DE3669177D1 (de) 1990-04-05
YU45772B (sh) 1992-07-20
ATE50601T1 (de) 1990-03-15
YU32786A (en) 1988-10-31
CN1012839B (zh) 1991-06-12
JPS61252484A (ja) 1986-11-10
US4690385A (en) 1987-09-01
ES8708259A1 (es) 1987-10-01
EP0193948B1 (fr) 1990-02-28
ES552615A0 (es) 1987-10-01
CA1243843A (fr) 1988-11-01
CN86101396A (zh) 1986-11-19
US4638980A (en) 1987-01-27

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