EP0735149B1 - Vorrichtung zur Wärmebehandlung metallischer Werkstücke unter Vakuum - Google Patents
Vorrichtung zur Wärmebehandlung metallischer Werkstücke unter Vakuum Download PDFInfo
- Publication number
- EP0735149B1 EP0735149B1 EP96101733A EP96101733A EP0735149B1 EP 0735149 B1 EP0735149 B1 EP 0735149B1 EP 96101733 A EP96101733 A EP 96101733A EP 96101733 A EP96101733 A EP 96101733A EP 0735149 B1 EP0735149 B1 EP 0735149B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- kiln
- furnace
- constructed
- batches
- 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 - Lifetime
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 27
- 238000009792 diffusion process Methods 0.000 claims abstract description 18
- 238000011282 treatment Methods 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract 2
- 238000001816 cooling Methods 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 4
- 238000010791 quenching Methods 0.000 claims description 4
- 230000000171 quenching effect Effects 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000003763 carbonization Methods 0.000 claims 1
- 238000005255 carburizing Methods 0.000 description 40
- 238000000034 method Methods 0.000 description 13
- 238000012545 processing Methods 0.000 description 7
- 238000012546 transfer Methods 0.000 description 5
- 230000035939 shock Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
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
- C21D9/0037—Rotary furnaces with vertical axis; Furnaces with rotating floor
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
-
- 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
- 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
- F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
- F27D2003/0059—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising tracks, e.g. rails and wagon
-
- 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
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0073—Seals
- F27D2099/0078—Means to minimize the leakage of the furnace atmosphere during charging or discharging
- F27D2099/008—Using an air-lock
-
- 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
- F27D3/04—Ram or pusher apparatus
Definitions
- the invention relates to a device for heat treatment of metallic Workpieces under vacuum with a rotary cycle furnace with an annular Turntable and a feed lock and an output lock, the Work piece batches using the turntable to different Machining positions are movable.
- Such a device in which the workpieces to be treated by means of a Rotary plates can be fed to different processing positions known for example from DE-PS 40 05 956.
- this device is the turntable arranged in a vacuum chamber through partitions in different rooms divided so that different treatments different processing positions are possible.
- To be treated the workpiece batches arranged in the separated rooms different processing positions within the vacuum chamber supplied on which the workpieces undergo various plasma treatments and / or can be subjected to heat treatments.
- the object of the invention is to create a device for the heat treatment of metallic workpieces under vacuum, which allows a flexible change between different batches with different case hardening depths, without the change in carburizing conditions affecting the other batches.
- the technical solution to this problem by the invention is characterized in that the rotary cycle furnace is designed as a vacuum ring furnace for the diffusion phase and that at least one separate carburizing furnace chamber is arranged along the circumference and outside of the rotary cycle furnace at least between the feed lock and the output lock, into which the workpiece batches for a carburizing treatment can be introduced.
- the main advantage of such an embodiment according to the invention is that the rotary cycle oven is used only for diffusion and the workpiece batches for the carburizing phases in the separately arranged individual carburizing chambers are insertable. After a carburizing phase, the batch of workpieces becomes diffusion Move back into the rotary cycle oven until it is ready for another Phase of the carburizing process is again brought into a carburizing furnace chamber or but after completing the carburizing process via the output lock can be removed from the rotary cycle oven.
- the carburizing furnace chambers can in a rotary cycle furnace according to the invention as plasma furnaces or Vacuum furnaces should be designed.
- Preheating the feed lock to the treatment temperature is according to one advantageous further development of the invention between the feed lock and the rotary cycle oven switched at least one heating chamber. Since the Heating the workpiece batches from the outside, it can in particular be advantageous for solid workpieces that between the Heating chamber and the rotary cycle oven a temperature compensation chamber is interposed in which there is a uniform temperature distribution in can set the workpiece batch.
- the Compensation chamber as a hydrogen sputtering chamber for surface cleaning of the workpieces.
- a cleaning of the Workpiece surfaces using a hydrogen plasma is particularly then advantageous if the at least one arranged on the rotary cycle furnace Carburizing furnace chamber is designed as a plasma furnace.
- the delivery lock is as Cooling chamber trained.
- the direct design of the delivery lock as The cooling chamber enables a particularly space-saving and compact design the plant.
- the Cooling chamber designed as a gas quenching chamber or with a Liquid quenching bath.
- a hardening furnace can be interposed, in which the batch first on the Hardening temperature is cooled before it is then in the cooling chamber is deterred.
- Carburizing furnace chamber assigned two thrust devices, either can be operated electrically, pneumatically or hydraulically.
- the device for heat treatment of metallic shown in Fig. 1 Workpieces in batches 1 exist in the direction of the transport route Batches 1 from a feed lock 2, a heating chamber 3, one Compensation chamber 4, a rotary cycle oven 5 as a diffusion oven, two Carburizing furnace chambers 6 and an output lock 7.
- the feed lock 2 is removed from a batch store (not shown) via a transport device 8 with the workpiece batches to be treated loaded. After loading the feed lock 2 doors 2a and 2b the feed lock 2 is closed and the feed lock 2 via a Pump not shown evacuated because the subsequent treatment of the Batches 1 in the chambers 3 and 4 and the rotary cycle oven 5 under vacuum he follows. Then door 2b is opened, batch 1 by means of a Shock device 2c transported into the heating chamber 3 and the door 2b again locked.
- the Charge 1 by means of heaters, not shown, except for the Treatment temperature heated, d. H. up to the temperature, which is also in the Rotary cycle furnace 5 prevails.
- the heating chamber 3 is followed by the compensation chamber 4, wherein a door 3a between the heating chamber 3 and the compensation chamber 4 is arranged and the transport of the batch 1 within the heating chamber 3rd via an impact device 3c and the transport from the heating chamber 3 in the compensation chamber 4 takes place via an impact device 3b.
- a door 3a between the heating chamber 3 and the compensation chamber 4 is arranged and the transport of the batch 1 within the heating chamber 3rd via an impact device 3c and the transport from the heating chamber 3 in the compensation chamber 4 takes place via an impact device 3b.
- the heating of the batches 1 in the heating chamber 3 by means of Heating only from the outside via radiation in particular massive workpieces still have no even temperature distribution when the surface has already reached the treatment temperature and therefore the Charge 1 is removed from the heating chamber 3 in order not to carry the workpiece too high a temperature.
- the compensation chamber 4 the is also equipped with heaters, not shown, can Compensate the temperature in the workpiece.
- the temperature in the Compensation chamber 4 regulated so that it is always on a constant Temperature, namely the desired treatment temperature is maintained.
- the usual treatment temperatures are between 800 ° C and 1000 ° C.
- the batch 1 After reaching the treatment temperature, the batch 1 after the Opening a door 4a in the rotary cycle oven 5 by means of a pushing device 4b pushed and the door 4a closed again.
- the batch 1 is a direct way the carburizing furnace chambers 6 transported.
- the chambers 6 are before the insertion of a batch 1 by means of a pump, not shown evacuated.
- a furnace chamber door 6a is opened and on the inside of the rotary cycle furnace arranged shock device 6b Charge 1 pushed into the carburizing furnace chamber 6 and the furnace chamber door 6a closed again.
- the carburizing furnace chamber which either as Plasma oven or designed as a vacuum oven is the real one Carburization process completed.
- the carburizing furnace is switched off again for the duration of the carburization and, if necessary, the Process gas removed from the carburizing furnace chamber 6.
- the furnace chamber door 6a opened again and the batch 1 by means of one of the pushing device 6b opposite arranged shock device 6c back into the Rotary cycle oven 5 pushed.
- the diffusion phase takes place during which the Edge carbon content drops again.
- the described carburizing process and the diffusion phase repeated several times. Due to the structure of the device with the Rotary cycle furnace 5 for the diffusion phase and the outside Carburizing furnace chambers 6 for the actual carburizing process is one ensures optimal use of the device, since during an already Charge 1 treated in a carburizing furnace chamber 6 for the diffusion phase lingers in the rotary cycle oven 5, another batch 1 with possibly other ones Carburizing conditions are placed in the carburizing furnace chamber 6 can. Depending on how many carburizing furnace chambers 6 along the Scope of the rotary cycle oven 5 are arranged, the flexibility of this Device increased and the treatment time can be shortened.
- the second embodiment of the device shown in FIG. 2 is up to the area of the delivery lock 7 is identical to the device according to FIG. 1 trained.
- the Rotary cycle oven 5 and the output lock 7 designed as a cooling chamber Intermediate hardening furnace 9.
- Such a hardening furnace 9 is necessary if the carburizing temperature in the carburizing furnace chambers 6 clearly above that Curing temperature of batch 1 is, and batch 1 after Carburizing process and before quenching to hardening temperature must be cooled.
- batch 1 goes through after last diffusion phase in the rotary cycle furnace 5 first the hardening furnace 9, then in the cooling chamber of the delivery lock 7 to be quenched.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Furnace Details (AREA)
- Furnace Charging Or Discharging (AREA)
- Tunnel Furnaces (AREA)
Description
- Fig. 1
- eine schematische Darstellung einer ersten Ausführungsform eines flexiblen Ring-Vakuumofens und
- Fig. 2
- eine schematische Darstellung einer zweiten Ausführungsform eines flexiblen Ring-Vakuumofens.
- 1
- Charge
- 2
- Aufgabeschleuse
- 2a
- Tür
- 2b
- Tür
- 2c
- Stoßeinrichtung
- 3
- Aufheizkammer
- 3a
- Tür
- 3b
- Stoßeinrichtung
- 3c
- Stoßeinrichtung
- 4
- Ausgleichskammer
- 4a
- Tür
- 4b
- Stoßeinrichtung
- 5
- Rundtaktofen
- 6
- Aufkohlungsofenkammer
- 6a
- Ofenkammertür
- 6b
- Stoßeinrichtung
- 6c
- Stoßeinrichtung
- 7
- Ausgabeschleuse
- 7a
- Tür
- 7b
- Stoßeinrichtung
- 8
- Fördervorrichtung
- 9
- Härteofen
Claims (11)
- Vorrichtung zur Wärmebehandlung metallischer Werkstücke unter Vakuum mit einem Rundtaktofen (5) mit einem ringförmigen Drehteller sowie einer Aufgabeschleuse (2) und einer Ausgabeschleuse (7), wobei die Werkstückchargen (1) mittels des Drehtellers zu verschiedenen Bearbeitungspositionen verfahrbar sind,
dadurch gekennzeichnet,
daß der Rundtaktofen (5) als Vakuumofen für die Diffusionsphase ausgebildet ist und entlang dem Umfang und außerhall des Rundtaktofens (5) zumindest zwischen der Aufgabeschleuse (2) und der Ausgabeschleuse (7) mindestens eine Aufkohlungsofenkammer (6) angeordnet ist, in die die Werkstückchargen (1) für eine Aufkohlungsbehandlung einbringbar sind. - Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die mindestens eine Aufkohlungsofenkammer (6) als Plasmaofen ausgebildet ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die mindestens eine Aufkohlungsofenkammer (6) als Vakuumofen ausgebildet ist.
- Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß zwischen die Aufgabeschleuse (2) und den Rundtaktofen (5) mindestens eine Aufheizkammer (3) geschaltet ist.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß zwischen die mindestens eine Aufheizkammer (3) und den Rundtaktofen (5) mindestens eine Ausgleichskammer (4) geschaltet ist.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die mindestens eine Ausgleichskammer (4) als Wasserstoffsputterkammer zur Oberflächenreinigung der Werkstückchargen (1) ausgebildet ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Ausgabeschleuse (7) als Kühlkammer ausgebildet ist.
- Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Kühlkammer als Gasabschreckkammer ausgebildet ist.
- Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Kühlkammer mit einem Flüssigkeitsbad ausgerüstet ist.
- Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß zwischen die als Kühlkammer ausgebildete Ausgabeschleuse (7) und den Rundtaktofen (5) ein Härteofen (9) geschaltet ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß jeder Aufkohlungsofenkammer (6) zwei Stoßeinrichtungen (6b, 6c) zugeordnet sind, um elektrisch, pneumatisch oder hydraulisch betrieben die Chargen (1) vom Rundtaktofen (5) in die Aufkohlungsofenkammer (6) bzw. von der Aufkohlungsofenkammer (6) zurück in den Rundtaktofen (5) zu verschieben.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29505496U | 1995-03-31 | ||
DE29505496U DE29505496U1 (de) | 1995-03-31 | 1995-03-31 | Vorrichtung zur Wärmebehandlung metallischer Werkstücke unter Vakuum |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0735149A1 EP0735149A1 (de) | 1996-10-02 |
EP0735149B1 true EP0735149B1 (de) | 1999-12-22 |
Family
ID=8006191
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96101733A Expired - Lifetime EP0735149B1 (de) | 1995-03-31 | 1996-02-07 | Vorrichtung zur Wärmebehandlung metallischer Werkstücke unter Vakuum |
Country Status (7)
Country | Link |
---|---|
US (1) | US5722825A (de) |
EP (1) | EP0735149B1 (de) |
JP (1) | JPH08285462A (de) |
AT (1) | ATE187985T1 (de) |
CA (1) | CA2173058A1 (de) |
DE (2) | DE29505496U1 (de) |
ES (1) | ES2141401T3 (de) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3895000B2 (ja) * | 1996-06-06 | 2007-03-22 | Dowaホールディングス株式会社 | 浸炭焼入焼戻方法及び装置 |
DE19639933C1 (de) * | 1996-08-30 | 1998-04-09 | Franz Hillingrathner | Rundtaktofen zum Behandeln von Werkstücken |
DE19638106C1 (de) * | 1996-08-30 | 1998-04-09 | Franz Hillingrathner | Rundtaktofen zum Behandeln von Werkstücken |
DE19635257C1 (de) * | 1996-08-30 | 1998-03-12 | Franz Hillingrathner | Rundtaktofen zum Behandeln von Werkstücken |
DE59705105D1 (de) * | 1996-08-30 | 2001-11-29 | Franz Hillingrathner | Rundtaktofen zum behandeln von werkstücken |
AT404029B (de) * | 1996-09-16 | 1998-07-27 | Ald Aichelin Ges M B H | Niederdruck-aufkohlungsanlage |
GB9704229D0 (en) * | 1997-02-28 | 1997-04-16 | Mckechnie Plc | Fastener installing machine |
JPH1129821A (ja) * | 1997-07-11 | 1999-02-02 | Ntn Corp | 浸炭焼入装置 |
DE19953654A1 (de) * | 1999-11-08 | 2001-05-23 | Pink Gmbh Vakuumtechnik | Verfahren und Vorrichtung zur Herstellung einer Lotverbindung |
JP4537522B2 (ja) * | 2000-02-07 | 2010-09-01 | 中外炉工業株式会社 | 間欠駆動式真空浸炭炉 |
ATE335859T1 (de) * | 2001-01-26 | 2006-09-15 | Ipsen Int Gmbh | Vorrichtung und verfahren zum transportieren metallischer werkstücke sowie anlage zur wärmebehandlung dieser werkstücke |
JP5092170B2 (ja) * | 2001-03-29 | 2012-12-05 | Dowaサーモテック株式会社 | 浸炭焼入れ方法及び浸炭焼入れ装置 |
JP5428031B2 (ja) * | 2001-06-05 | 2014-02-26 | Dowaサーモテック株式会社 | 浸炭処理方法及びその装置 |
US7276204B2 (en) * | 2001-06-05 | 2007-10-02 | Dowa Thermotech Co., Ltd. | Carburization treatment method and carburization treatment apparatus |
JP5428032B2 (ja) * | 2001-06-05 | 2014-02-26 | Dowaサーモテック株式会社 | 浸炭処理方法 |
EP1333105B1 (de) * | 2002-02-04 | 2008-04-02 | Ipsen International GmbH | Verfahren zur Wärmebehandlung metallischer Werkstücke sowie wärmebehandeltes Werkstück |
DE10310739A1 (de) * | 2002-03-27 | 2003-10-09 | Loi Thermprocess Gmbh | Anlage zum Wärmebehandeln von Werkstücken |
EP2324805B1 (de) | 2003-02-12 | 2013-11-13 | The Procter & Gamble Company | Saugfähiger Kern für einen saugfähigen Artikel |
US20050016831A1 (en) * | 2003-07-24 | 2005-01-27 | Paganessi Joseph E. | Generation of acetylene for on-site use in carburization and other processes |
US8684988B2 (en) * | 2004-06-29 | 2014-04-01 | The Procter & Gamble Company | Disposable absorbent article having barrier cuff strips |
US7598477B2 (en) * | 2005-02-07 | 2009-10-06 | Guy Smith | Vacuum muffle quench furnace |
US20090304907A1 (en) * | 2008-06-09 | 2009-12-10 | Applied Materials, Inc. | Coating system and method for coating a substrate |
EP2607504B1 (de) * | 2011-12-23 | 2018-02-28 | Ipsen International GmbH | Lastentransportmechanismus für ein Mehrstationswärmebehandlungssystem |
DE102012019653A1 (de) * | 2012-10-08 | 2014-04-10 | Ipsen International Gmbh | Gasdichter schutzgasbegaster Industrieofen, insbesondere Kammerofen, Durchstoßofen, Drehherdofen oder Ringherdofen |
DE102013006589A1 (de) * | 2013-04-17 | 2014-10-23 | Ald Vacuum Technologies Gmbh | Verfahren und Vorrichtung für das thermochemische Härten von Werkstücken |
CN103276165B (zh) * | 2013-06-07 | 2016-09-07 | 鞍钢股份有限公司 | 一种环形炉节能操作方法 |
PL228603B1 (pl) | 2015-02-04 | 2018-04-30 | Seco/Warwick Spolka Akcyjna | Piec wielokomorowy do nawęglania próżniowego i hartowania kół zębatych, wałków, pierścieni i tym podobnych detali |
DE112018002730T5 (de) | 2017-05-29 | 2020-03-05 | Ihi Corporation | Mehrkammer-Wärmebehandlungsvorrichtung |
FR3073937B1 (fr) * | 2017-11-21 | 2020-08-14 | Ceritherm | Installation de traitement thermique pour la fabrication de produits industriels. |
CN111424154B (zh) * | 2020-05-12 | 2021-01-19 | 浙江三基钢管有限公司 | 一种可定量放料的加热炉 |
DE102022108513A1 (de) * | 2021-04-16 | 2022-10-20 | Aerospace Transmission Technologies GmbH | Steuereinrichtung und Verfahren zur Steuerung einer Anlage und eines Prozesses zur Wärmebehandlung von metallischen Werkstücken |
CN116121504B (zh) * | 2023-02-21 | 2023-09-22 | 北京中孚悦达真空科技有限公司 | 一种立式真空水淬炉 |
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Publication number | Priority date | Publication date | Assignee | Title |
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DE3209245A1 (de) * | 1982-03-13 | 1983-09-15 | Brown, Boveri & Cie Ag, 6800 Mannheim | Drehherdofen |
FR2617953B2 (fr) * | 1982-04-27 | 1989-11-03 | Innovatique Sa | Four a sole tournante pour le traitement thermique, thermochimique ou electrothermique de metaux sous atmosphere rarefiee ou controlee |
GB2162208B (en) * | 1984-07-20 | 1988-07-06 | Ipsen Ind Int Gmbh | Heat treatment of metal workpieces |
DE3435376C2 (de) * | 1984-09-27 | 1996-09-12 | Loi Ipsen Holding Gmbh | Verfahren zur Wärmebehandlung von Werkstücken |
SE450389B (sv) * | 1984-10-02 | 1987-06-22 | Volvo Ab | Metod och anleggning for vermebehandling av detaljer med varierande krav pa vermebehandlingstid |
DE8711235U1 (de) * | 1987-08-18 | 1987-10-22 | Ruhrgas Ag, 4300 Essen | Industrie-Ofenkombination mit zwei hintereinander angeorneten Behandlungsöfen |
JPH0287063U (de) * | 1988-12-22 | 1990-07-10 | ||
DE4005956C1 (de) * | 1990-02-26 | 1991-06-06 | Siegfried Dipl.-Ing. Dr. 5135 Selfkant De Straemke | |
US5143558A (en) * | 1991-03-11 | 1992-09-01 | Thermo Process Systems Inc. | Method of heat treating metal parts in an integrated continuous and batch furnace system |
US5324366A (en) * | 1991-08-09 | 1994-06-28 | Caterpillar Inc. | Heat treat furnace system for performing different carburizing processes simultaneously |
-
1995
- 1995-03-31 DE DE29505496U patent/DE29505496U1/de not_active Expired - Lifetime
-
1996
- 1996-02-07 ES ES96101733T patent/ES2141401T3/es not_active Expired - Lifetime
- 1996-02-07 EP EP96101733A patent/EP0735149B1/de not_active Expired - Lifetime
- 1996-02-07 AT AT96101733T patent/ATE187985T1/de not_active IP Right Cessation
- 1996-02-07 DE DE59603946T patent/DE59603946D1/de not_active Expired - Fee Related
- 1996-03-15 JP JP8085955A patent/JPH08285462A/ja active Pending
- 1996-03-29 US US08/624,965 patent/US5722825A/en not_active Expired - Fee Related
- 1996-03-29 CA CA002173058A patent/CA2173058A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
DE59603946D1 (de) | 2000-01-27 |
CA2173058A1 (en) | 1996-10-01 |
JPH08285462A (ja) | 1996-11-01 |
ATE187985T1 (de) | 2000-01-15 |
EP0735149A1 (de) | 1996-10-02 |
ES2141401T3 (es) | 2000-03-16 |
US5722825A (en) | 1998-03-03 |
DE29505496U1 (de) | 1995-06-01 |
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