EP1089045A3 - Articles handling process and rotary hearth furnace therefor - Google Patents

Articles handling process and rotary hearth furnace therefor Download PDF

Info

Publication number
EP1089045A3
EP1089045A3 EP00121081A EP00121081A EP1089045A3 EP 1089045 A3 EP1089045 A3 EP 1089045A3 EP 00121081 A EP00121081 A EP 00121081A EP 00121081 A EP00121081 A EP 00121081A EP 1089045 A3 EP1089045 A3 EP 1089045A3
Authority
EP
European Patent Office
Prior art keywords
handling process
hearth furnace
rotary hearth
furnace
palettes
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
EP00121081A
Other languages
German (de)
French (fr)
Other versions
EP1089045A2 (en
EP1089045B1 (en
Inventor
Karlheinz Schweikert
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.)
Karl Heess GmbH and Co Maschinenbau
Original Assignee
Karl Heess GmbH and Co Maschinenbau
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 Karl Heess GmbH and Co Maschinenbau filed Critical Karl Heess GmbH and Co Maschinenbau
Publication of EP1089045A2 publication Critical patent/EP1089045A2/en
Publication of EP1089045A3 publication Critical patent/EP1089045A3/en
Application granted granted Critical
Publication of EP1089045B1 publication Critical patent/EP1089045B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F27B9/14—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
    • 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
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
    • 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
    • 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
    • F27D3/0024—Charging; Discharging; Manipulation of charge of metallic workpieces

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

Process for manipulating workpieces to be carburized comprises inserting the workpieces or a workpiece magazine on palettes into a rotary furnace in rows corresponding to a prescribed number of workpiece rows, removing from the furnace after carburizing and feeding to a press. The palettes are arranged in the furnace in the number of rows so that the row number is a multiple of the press number. Preferred Features A free place is provided next to the palettes to be removed from the furnace.
EP00121081A 1999-10-01 2000-09-28 Articles handling process and rotary hearth furnace therefor Expired - Lifetime EP1089045B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19947482A DE19947482C2 (en) 1999-10-01 1999-10-01 Process for manipulating workpieces and rotary hearth furnace therefor
DE19947482 1999-10-01

Publications (3)

Publication Number Publication Date
EP1089045A2 EP1089045A2 (en) 2001-04-04
EP1089045A3 true EP1089045A3 (en) 2003-07-16
EP1089045B1 EP1089045B1 (en) 2007-01-03

Family

ID=7924266

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00121081A Expired - Lifetime EP1089045B1 (en) 1999-10-01 2000-09-28 Articles handling process and rotary hearth furnace therefor

Country Status (4)

Country Link
US (1) US6336808B1 (en)
EP (1) EP1089045B1 (en)
AT (1) ATE350635T1 (en)
DE (2) DE19947482C2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009001012B3 (en) 2009-02-19 2010-06-10 Ema Indutec Gmbh Hardening machine and method for inductive fixture hardening
DE102012019653A1 (en) 2012-10-08 2014-04-10 Ipsen International Gmbh Gas-tight protective gas-blast industrial furnace, in particular chamber furnace, pusher furnace, rotary hearth furnace or ring hearth furnace
RU2706266C1 (en) * 2019-02-22 2019-11-15 Публичное акционерное общество "Трубная металлургическая компания" (ПАО "ТМК") Method for laying cylindrical continuously-cast workpieces on bottom of an annular furnace
CN110835721A (en) * 2019-11-27 2020-02-25 特诺恩技术（天津）有限公司 Charging and discharging mechanism of large annular rotary bottom type gas carburizing furnace

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2499926A (en) * 1947-04-22 1950-03-07 Donald W Lloyd Continuous circular ingot-heating furnace
US4602904A (en) * 1985-06-12 1986-07-29 Amsted Industries Incorporated Method of obtaining temperature of an object being heat treated
DE29608569U1 (en) * 1996-05-13 1996-08-14 Karl Heess GmbH & Co Maschinenbau, 68623 Lampertheim Device for receiving and implementing heat treatment steps to be subjected to workpieces

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3741553A (en) * 1970-07-07 1973-06-26 Beloit Corp Method and apparatus for forming containers by blow-molding
DE4115235C1 (en) * 1991-05-10 1992-12-24 Vegla Vereinigte Glaswerke Gmbh, 5100 Aachen, De
DE29808569U1 (en) 1998-04-30 1998-11-05 Wittmann Kunststoffgeräte Ges.m.b.H., Wien Temperature control circuit for injection molds

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2499926A (en) * 1947-04-22 1950-03-07 Donald W Lloyd Continuous circular ingot-heating furnace
US4602904A (en) * 1985-06-12 1986-07-29 Amsted Industries Incorporated Method of obtaining temperature of an object being heat treated
DE29608569U1 (en) * 1996-05-13 1996-08-14 Karl Heess GmbH & Co Maschinenbau, 68623 Lampertheim Device for receiving and implementing heat treatment steps to be subjected to workpieces

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WIENSTROTH T ET AL: "DREHHERDOFENANLAGE ZUM GAS-AUFKOHLEN MIT ANSCHLIESSENDER PRESSENHARTUNG", HAERTEREI TECHNISCHE MITTEILUNGEN, CARL HANSER VERLAG. MUNCHEN, DE, vol. 44, no. 2, 1 March 1989 (1989-03-01), pages 121 - 124, XP000008559, ISSN: 0341-101X *

Also Published As

Publication number Publication date
DE50013923D1 (en) 2007-02-15
ATE350635T1 (en) 2007-01-15
DE19947482A1 (en) 2001-07-19
DE19947482C2 (en) 2002-07-11
US6336808B1 (en) 2002-01-08
EP1089045A2 (en) 2001-04-04
EP1089045B1 (en) 2007-01-03

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