EP0897017A1 - Turmofen zur Wärmebahandlung von Metallbändern - Google Patents
Turmofen zur Wärmebahandlung von Metallbändern Download PDFInfo
- Publication number
- EP0897017A1 EP0897017A1 EP98890147A EP98890147A EP0897017A1 EP 0897017 A1 EP0897017 A1 EP 0897017A1 EP 98890147 A EP98890147 A EP 98890147A EP 98890147 A EP98890147 A EP 98890147A EP 0897017 A1 EP0897017 A1 EP 0897017A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- muffle
- heat treatment
- furnace
- metal strips
- tower furnace
- 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
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0043—Muffle furnaces; Retort furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/66—Tower-type furnaces
Definitions
- the invention relates to a tower furnace for the heat treatment of metal strips with the belt running through the entire furnace height Muffle.
- Metal strips in particular made of Cr-Ni steel or Cr steel, have hitherto been continuously bright annealed in so-called door furnaces, the heat treatment taking place under a protective gas consisting of H 2 or H 2 / N 2 mixture.
- the strip is heated by radiation in a muffle heated on the outside and then cooled in a cooling system. Both gas burners and electrical resistance heating elements can be used to heat the muffle.
- the oven temperature is determined by the material used Limited muffle.
- the strip heating is therefore from the muffle counter temperature dependent and runs according to one of the emission factors of the band and the muffle certain function.
- the muffle length results from the tear length of the used Material, d. H. that the dead weight of the muffle leads to their destruction can.
- the invention has for its object a tower furnace of the aforementioned To create the way in which the desired strip end temperature is reached without the Exceeding the tear length of the muffle and without the band heating due to colder Delay oven parts.
- the invention solves this problem in that an insulated plug with electrical Heating is inserted into the top of the muffle, whereas one is preferably under the plug gas-heated preheating room.
- the furnace can be brightly glowed even after a long interruption in production with a normal addition of H 2 .
- the energy losses are negligible due to the slightly lower temperature of the muffle outer wall in the plug area.
- this lowering of the temperature there is at the same time an increase in the strength of the material, which in turn allows the muffle to be lengthened, with no risk that the tear length of the muffle will be exceeded.
- the drawing shows an exemplary embodiment of a tower furnace schematically in longitudinal section.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Tunnel Furnaces (AREA)
- Furnace Details (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
Description
Claims (1)
- Turmofen zur Wärmebehandlung von Metallbändern mit sich über die ganze Ofenhöhe erstreckender, vom Band (6) durchlaufener Muffel (3), dadurch gekennzeichnet, daß ein isolierter Stopfen (1) mit elektrischer Heizung (2) oben in die Muffel (3) eingesetzt ist, wogegen sich unter dem Stopfen (1) ein vorzugsweise gasbeheizter Vorwärmraum (4) befindet.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT999/97 | 1997-06-10 | ||
AT0099997A AT405055B (de) | 1997-06-10 | 1997-06-10 | Turmofen zur wärmebehandlung von metallbändern |
AT99997 | 1997-06-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0897017A1 true EP0897017A1 (de) | 1999-02-17 |
EP0897017B1 EP0897017B1 (de) | 2001-10-31 |
Family
ID=3504621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98890147A Expired - Lifetime EP0897017B1 (de) | 1997-06-10 | 1998-05-20 | Turmofen zur Wärmebehandlung von Metallbändern |
Country Status (8)
Country | Link |
---|---|
US (1) | US6031206A (de) |
EP (1) | EP0897017B1 (de) |
JP (1) | JP4077930B2 (de) |
KR (1) | KR19990006771A (de) |
AT (2) | AT405055B (de) |
DE (1) | DE59801932D1 (de) |
ES (1) | ES2167060T3 (de) |
TW (1) | TW410239B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1167554A2 (de) * | 2000-06-29 | 2002-01-02 | Peter Helmut Dipl.-Ing. Ebner | Turmofen zur Wärmebehandlung von Metallbändern |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT507670B1 (de) * | 2009-07-03 | 2010-07-15 | Ebner Ind Ofenbau | Turmofen zur wärmebehandlung eines metallbands |
JP5550924B2 (ja) * | 2010-01-26 | 2014-07-16 | 光洋サーモシステム株式会社 | 連続加熱式マッフル炉 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE652552C (de) * | 1937-11-02 | Siemens Schuckertwerke Akt Ges | Turmofen mit einem das Durchziehgut umschliessenden gasdichten Innenmantel | |
US2104886A (en) * | 1934-04-30 | 1938-01-11 | Firm Heraeus Vacuumschmelze Ag | Electrically heated annealing furnace |
FR836893A (fr) * | 1937-04-20 | 1939-01-27 | Roechlingsche Eisen & Stahl | Four à recuire en blanc |
EP0675208A1 (de) * | 1994-03-31 | 1995-10-04 | Chugai Ro Co., Ltd. | Vertikaler Blankglühofen für die kontinuierliche Wärmebehandlung von Metallbändern |
WO1997039154A1 (en) * | 1996-04-12 | 1997-10-23 | Thermtec B.V. | Vertical annealing furnace for a strip treatment device |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3823003A (en) * | 1970-04-14 | 1974-07-09 | Dow Chemical Co | Preparation of metals |
US4229163A (en) * | 1977-07-25 | 1980-10-21 | Kawasaki Steel Corporation | Heating furnace |
US4299565A (en) * | 1977-07-25 | 1981-11-10 | Kawasaki Steel Corporation | Heating furnace |
JPS5811493B2 (ja) * | 1978-12-29 | 1983-03-03 | 新日本製鐵株式会社 | 冷延鋼帯の連続焼鈍設備 |
EP0181830B1 (de) * | 1984-11-08 | 1991-06-12 | Mitsubishi Jukogyo Kabushiki Kaisha | Verfahren und Vorrichtung zum Erwärmen eines Metallbandes in einem Durchlaufglühofen |
JPS61157641A (ja) * | 1984-12-28 | 1986-07-17 | Chugai Ro Kogyo Kaisha Ltd | 金属ストリツプ用連続焼鈍炉 |
US4760995A (en) * | 1985-07-18 | 1988-08-02 | Nippon Kokan Kabushiki Kaisha | Continuously treating line for steel bands having a heating furnace by directly flaming |
WO1994008190A1 (en) * | 1992-10-05 | 1994-04-14 | Acon Finland Oy Ltd | Method and apparatus for improving the performance of a heating furnace for metal slabs |
JP2815086B2 (ja) * | 1994-02-21 | 1998-10-27 | 住友金属工業株式会社 | 鋼帯の竪型連続焼鈍炉 |
JPH08260059A (ja) * | 1995-03-17 | 1996-10-08 | Nippon Steel Corp | 雰囲気制御能力が優れた連続焼鈍炉 |
-
1997
- 1997-06-10 AT AT0099997A patent/AT405055B/de not_active IP Right Cessation
-
1998
- 1998-05-20 DE DE59801932T patent/DE59801932D1/de not_active Expired - Fee Related
- 1998-05-20 ES ES98890147T patent/ES2167060T3/es not_active Expired - Lifetime
- 1998-05-20 AT AT98890147T patent/ATE207973T1/de not_active IP Right Cessation
- 1998-05-20 EP EP98890147A patent/EP0897017B1/de not_active Expired - Lifetime
- 1998-05-29 TW TW087108373A patent/TW410239B/zh not_active IP Right Cessation
- 1998-05-29 US US09/086,837 patent/US6031206A/en not_active Expired - Fee Related
- 1998-06-08 JP JP15915698A patent/JP4077930B2/ja not_active Expired - Fee Related
- 1998-06-09 KR KR1019980021202A patent/KR19990006771A/ko not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE652552C (de) * | 1937-11-02 | Siemens Schuckertwerke Akt Ges | Turmofen mit einem das Durchziehgut umschliessenden gasdichten Innenmantel | |
US2104886A (en) * | 1934-04-30 | 1938-01-11 | Firm Heraeus Vacuumschmelze Ag | Electrically heated annealing furnace |
FR836893A (fr) * | 1937-04-20 | 1939-01-27 | Roechlingsche Eisen & Stahl | Four à recuire en blanc |
EP0675208A1 (de) * | 1994-03-31 | 1995-10-04 | Chugai Ro Co., Ltd. | Vertikaler Blankglühofen für die kontinuierliche Wärmebehandlung von Metallbändern |
WO1997039154A1 (en) * | 1996-04-12 | 1997-10-23 | Thermtec B.V. | Vertical annealing furnace for a strip treatment device |
Non-Patent Citations (1)
Title |
---|
HANS WERNER HONERVOGT: "Eine indirekt beheizte Glühanlage für das Glühen von nichtrostenden und säurebeständigen Kaltbändern unter Schutzgas", STAHL UND EISEN, vol. 93, no. 24, 22 November 1973 (1973-11-22), Düsseldorf, DE, pages 1152 - 1157, XP002021733 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1167554A2 (de) * | 2000-06-29 | 2002-01-02 | Peter Helmut Dipl.-Ing. Ebner | Turmofen zur Wärmebehandlung von Metallbändern |
EP1167554A3 (de) * | 2000-06-29 | 2004-01-02 | Peter Helmut Dipl.-Ing. Ebner | Turmofen zur Wärmebehandlung von Metallbändern |
Also Published As
Publication number | Publication date |
---|---|
EP0897017B1 (de) | 2001-10-31 |
ATA99997A (de) | 1998-09-15 |
TW410239B (en) | 2000-11-01 |
ATE207973T1 (de) | 2001-11-15 |
AT405055B (de) | 1999-05-25 |
JPH1150156A (ja) | 1999-02-23 |
DE59801932D1 (de) | 2001-12-06 |
US6031206A (en) | 2000-02-29 |
JP4077930B2 (ja) | 2008-04-23 |
ES2167060T3 (es) | 2002-05-01 |
KR19990006771A (ko) | 1999-01-25 |
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