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GB2162294B - Annular rotary hearth furnace for heat-treating workpieces - Google Patents

Annular rotary hearth furnace for heat-treating workpieces

Info

Publication number
GB2162294B
GB2162294B GB08517669A GB8517669A GB2162294B GB 2162294 B GB2162294 B GB 2162294B GB 08517669 A GB08517669 A GB 08517669A GB 8517669 A GB8517669 A GB 8517669A GB 2162294 B GB2162294 B GB 2162294B
Authority
GB
United Kingdom
Prior art keywords
heat
hearth furnace
rotary hearth
annular rotary
treating workpieces
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
Application number
GB08517669A
Other versions
GB2162294A (en
GB8517669D0 (en
Inventor
Manfred Paul
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.)
Daimler Benz AG
Original Assignee
Daimler Benz 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 Daimler Benz AG filed Critical Daimler Benz AG
Publication of GB8517669D0 publication Critical patent/GB8517669D0/en
Publication of GB2162294A publication Critical patent/GB2162294A/en
Application granted granted Critical
Publication of GB2162294B publication Critical patent/GB2162294B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
    • F27B9/045—Furnaces with controlled atmosphere
    • F27B9/047—Furnaces with controlled atmosphere the atmosphere consisting of protective gases
    • 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
    • C21D9/0037—Rotary furnaces with vertical axis; Furnaces with rotating floor
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
    • F27B9/068—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated by radiant tubes, the tube being heated by a hot medium, e.g. hot gases
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/16—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a circular or arcuate path
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path
    • F27B9/201—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path walking beam furnace
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories or equipment specially adapted for furnaces of these types
    • F27B9/38—Arrangements of devices for charging

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Tunnel Furnaces (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
GB08517669A 1984-07-27 1985-07-12 Annular rotary hearth furnace for heat-treating workpieces Expired GB2162294B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3427716A DE3427716C1 (en) 1984-07-27 1984-07-27 Rotary hearth furnace in ring design for heat treatment of workpieces

Publications (3)

Publication Number Publication Date
GB8517669D0 GB8517669D0 (en) 1985-08-21
GB2162294A GB2162294A (en) 1986-01-29
GB2162294B true GB2162294B (en) 1988-04-20

Family

ID=6241718

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08517669A Expired GB2162294B (en) 1984-07-27 1985-07-12 Annular rotary hearth furnace for heat-treating workpieces

Country Status (5)

Country Link
JP (1) JPS6141759A (en)
DE (1) DE3427716C1 (en)
FR (1) FR2568360B1 (en)
GB (1) GB2162294B (en)
IT (1) IT1185316B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3606494A1 (en) * 1986-02-28 1987-09-03 Aichelin Gmbh TURNOVER
DE4303686C2 (en) * 1992-10-07 1995-11-30 Iob Ind Ofen Bau Gmbh Furnace plant and method for the heat treatment of metallic workpieces
DE4316841A1 (en) * 1993-05-19 1994-11-24 Aichelin Gmbh Device for the heat treatment of metallic workpieces
RU2157959C2 (en) * 1998-09-25 2000-10-20 Еворенко Геннадий Исидорович Ring furnace
DE19952397A1 (en) * 1999-10-29 2001-05-03 Loi Thermprocess Gmbh Rotary hearth furnace for the heat treatment of workpieces
DE10134056B8 (en) 2001-07-13 2014-05-28 Vacuumschmelze Gmbh & Co. Kg Process for the production of nanocrystalline magnetic cores and apparatus for carrying out the process
DE10310739A1 (en) * 2002-03-27 2003-10-09 Loi Thermprocess Gmbh Device for heat treating workpieces has an opening for charging/discharging in the outer wall of a rotary furnace in a last treatment zone
ATE504792T1 (en) * 2003-11-19 2011-04-15 Loi Thermprocess Gmbh SYSTEM AND METHOD FOR HEAT TREATING VARIOUS WORKPIECES
ATE418625T1 (en) 2006-10-30 2009-01-15 Vacuumschmelze Gmbh & Co Kg SOFT MAGNETIC ALLOY BASED ON IRON-COBALT AND METHOD FOR THE PRODUCTION THEREOF
US9057115B2 (en) 2007-07-27 2015-06-16 Vacuumschmelze Gmbh & Co. Kg Soft magnetic iron-cobalt-based alloy and process for manufacturing it
US8012270B2 (en) 2007-07-27 2011-09-06 Vacuumschmelze Gmbh & Co. Kg Soft magnetic iron/cobalt/chromium-based alloy and process for manufacturing it
EP2685193B1 (en) * 2012-07-11 2015-01-14 LOI Thermprocess GmbH Method and rotary hearth furnace for heat treating workpieces
CN109855424B (en) * 2018-12-28 2024-06-11 永豪光电（中国）有限公司 Improved rotary furnace
CN112375886B (en) * 2020-10-12 2024-07-30 爱协林热处理系统(北京)有限公司 Controlled atmosphere spheroidizing annealing annular furnace

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE421274C (en) * 1924-09-16 1925-11-09 Wilhelm Krieger Ring-shaped channel furnace for annealing, hardening, cementing, firing, etc. like
GB812305A (en) * 1956-01-23 1959-04-22 British Furnaces Ltd Method and apparatus for heating metal work, particularly non-ferrous metal work
US3063878A (en) * 1958-05-07 1962-11-13 Wilson Lee Method of and apparatus for annealing
FR1455888A (en) * 1965-05-14 1966-05-20 Koppers Wistra Ofenbau Gmbh Rotary hearth oven
GB1247601A (en) * 1969-04-21 1971-09-29 Leeming Anderson Kiln for heat treatment of articles on a continuous basis
JPS5145607A (en) * 1974-10-17 1976-04-19 Daido Steel Co Ltd RENZOKUSHIKI FUNIKIRO
JPS53127312A (en) * 1976-06-17 1978-11-07 Daido Steel Co Ltd Continuous atomosphere furnace and method of supplying atomosphere gas therein
US4406618A (en) * 1980-12-19 1983-09-27 Kawasaki Steel Corporation Method of operating continuous heat treatment furnace for metal strip coils
JPS58217625A (en) * 1982-06-09 1983-12-17 Daido Steel Co Ltd Heat treating apparatus

Also Published As

Publication number Publication date
IT8521739A0 (en) 1985-07-26
JPS6141759A (en) 1986-02-28
GB2162294A (en) 1986-01-29
DE3427716C1 (en) 1985-11-14
IT1185316B (en) 1987-11-12
FR2568360A1 (en) 1986-01-31
FR2568360B1 (en) 1991-02-22
GB8517669D0 (en) 1985-08-21

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940712