EP0313889A1 - Four sous vide pour le traitement à chaud de pièces métalliques - Google Patents
Four sous vide pour le traitement à chaud de pièces métalliques Download PDFInfo
- Publication number
- EP0313889A1 EP0313889A1 EP88116478A EP88116478A EP0313889A1 EP 0313889 A1 EP0313889 A1 EP 0313889A1 EP 88116478 A EP88116478 A EP 88116478A EP 88116478 A EP88116478 A EP 88116478A EP 0313889 A1 EP0313889 A1 EP 0313889A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vacuum furnace
- batch
- cooling gas
- thermal insulation
- gas
- 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
-
- 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
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
- F27B5/16—Arrangements of air or gas supply devices
-
- 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
- C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof
-
- 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
- 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
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/04—Circulating atmospheres by mechanical means
-
- 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
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
- F27B2005/062—Cooling elements
- F27B2005/064—Cooling elements disposed in the furnace, around the chamber, e.g. coils
-
- 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
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
- F27B5/14—Arrangements of heating devices
- F27B2005/143—Heating rods disposed in the chamber
- F27B2005/146—Heating rods disposed in the chamber the heating rods being in the tubes which conduct the heating 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
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
- F27B5/16—Arrangements of air or gas supply devices
- F27B2005/161—Gas inflow or outflow
- F27B2005/164—Air supply through a set of tubes with openings
-
- 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
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
- F27B5/16—Arrangements of air or gas supply devices
- F27B2005/166—Means to circulate the atmosphere
- F27B2005/167—Means to circulate the atmosphere the atmosphere being recirculated through the treatment chamber by a turbine
Definitions
- the invention relates to a vacuum furnace for the heat treatment of metallic workpieces with a cylindrical pressure housing, in which a batch space surrounded by axially aligned heat conductors and provided with thermal insulation and a gas cooling device are arranged, with which a cooling gas is passed through nozzles through the batch space and over a heat exchanger can.
- Such vacuum furnaces are used in particular for the hardening of tools and components of all kinds made of various types of steel. Some of them can also be used for other heat treatments, e.g. B. Annealing and soldering.
- DE-PSs 28 39 807 and 28 44 843 describe generic vacuum ovens. They essentially consist of a cylindrical pressure housing in which there is a batch chamber, which is delimited by thermal insulation walls and heated by heating elements, and a gas cooling device. The tools and components are heated in the batch chamber under vacuum to the austenitizing temperature and a cooled inert gas is circulated under pressure in the furnace for quenching. The cooling gas flows at high speed onto the hot batch, removes this thermal energy and is passed through a heat exchanger, where it is cooled and returned to the batch chamber. The cooling gas is introduced into the batch chamber according to DE-PS 28 39 807 via nozzles which are attached to separate, axially aligned gas inlet pipes.
- This vacuum oven should ensure the fastest possible, even cooling of the heated batches, be as simple as possible and be able to be heated as quickly as possible.
- heat conductors are designed as tubes, are provided with bores towards the batch space and are connected to a cooling gas distribution device via electrical insulating pieces.
- the cooling gas distribution device is preferably provided with a fan which pushes the cooling gas through the heating pipes and sucks it in again from the batch space.
- the wall of the thermal insulation in the area of the cooling gas distribution device is provided with a closable opening. This means that a heating gas flow can be maintained in the furnace interior bypassing the heat exchanger during the heating period of the batches.
- Figures 1 and 2 schematically show longitudinal sections through an embodiment of a vacuum oven according to the invention, Figure 1 showing the oven in the heating phase up to about 750 ° C and Figure 2 in the cooling phase.
- the furnace consists of a cylindrical pressure housing (1), one end face of which is designed as a door (2) through which the furnace can be loaded and unloaded.
- the batch space (3) is delimited on the outside by thermal insulation (4) in the form of a cylindrical tube, which consists of a thermal insulation material and is provided on the end faces with corresponding walls, at least one wall (5) of which is movable.
- This thermal insulation (4) shields the radiation in the batch space (3) from the outside, so that only slight energy losses occur.
- the electrical heating conductors (6) are arranged axially in the batch space (3), which are designed as heating pipes and are provided with holes (7) towards the batch space (3).
- These heating tubes (6) have, for example, a wall thickness of 1 to 3 mm and a clear width of 40 to 150 mm.
- the diameter of the bores (7) is dimensioned such that the sum of the areas of the bores of a heating tube corresponds to the area of the clear width.
- the heating pipes (6) are attached to the cooling gas distribution device (9) via electrical insulating pieces (8), which are connected to the drive motor (10) and the fan (11) on the side opposite the door (2) is housed in the pressure housing.
- the wall of the thermal insulation (4) adjacent to the cooling gas distribution device (9) is provided with an opening (12) which can be closed and opened with a slide (13).
- the water-cooled heat exchanger tubes (14) are accommodated between the pressure housing (1) and the thermal insulation (4).
- the batch space (3) After loading the batch space (3) with tools, for example, it is flooded with an inert gas and heated.
- the slide (13) opens the opening (12) in the thermal insulation ( Figure 1) so that the inert gas can be pressed by the fan (11) into the heating pipes (6), from where it passes through the holes (7) , which are distributed over the length of the heating pipes, penetrates into the batch space (3) and is returned to the fan (11) through the opening (12) in the thermal insulation.
- the inert gas Since the inert gas is fed in via the heating pipes (6), it quickly increases in temperature, which results in the batch being heated quickly and homogeneously by the hot gas in the dark radiation region. Due to the hot gas flowing directly onto the batch, the batch is evenly heated internally.
- This heating process under protective gas is used up to about 750 ° C. In the case of hardening treatments in which heating has to be carried out up to approximately 1300 ° C., the inert gas is then removed from the furnace and the further heating is carried out only by heat radiation
- the furnace is flooded with cold inert gas with excess pressure when the opening (12) is closed.
- the wall (5) of the thermal insulation (4) is lifted off the cylindrical tube, so that a gap is created and the batch space (3) with the space between Pressure housing (1) and thermal insulation (4) is connected ( Figure 2).
- the cooling gas is pressed by the fan (11) over the cooled heating pipes (6) at high speed into the batch space (3), from where it flows back through the heat exchanger pipes (14) into the cooling gas distribution device (9) and is circulated again.
- inert gases are used, combined with high gas pressures and gas velocities, quenching intensities are achieved with the vacuum furnaces according to the invention which are comparable to those achievable in oil quenching baths.
- other types of steel than previously can be quenched and hardened with gas cooling.
- the heating tubes (6) which also serve as gas supply tubes, preferably consist of carbon fiber-reinforced carbon.
- the electrically conductive cross-section of the heating pipes, which is decisive for heat generation, and the internal width of the heating pipes, which is decisive for the gas volume flow, must be coordinated.
- the combination of the heating element and the gas supply pipe results in a significant simplification of the manufacturing process in the manufacture of these furnaces.
- the cooling gas is pumped out of the furnace interior with a compressor after the quenching process and conveyed into a high-pressure accumulator, from where it is available for further applications.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Thermally Insulated Containers For Foods (AREA)
- Meat, Egg Or Seafood Products (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88116478T ATE65800T1 (de) | 1987-10-28 | 1988-10-05 | Vakuumofen zur waermebehandlung metallischer werkstuecke. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3736502 | 1987-10-28 | ||
DE3736502A DE3736502C1 (de) | 1987-10-28 | 1987-10-28 | Vakuumofen zur Waermebehandlung metallischer Werkstuecke |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0313889A1 true EP0313889A1 (fr) | 1989-05-03 |
EP0313889B1 EP0313889B1 (fr) | 1991-07-31 |
Family
ID=6339264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88116478A Expired - Lifetime EP0313889B1 (fr) | 1987-10-28 | 1988-10-05 | Four sous vide pour le traitement à chaud de pièces métalliques |
Country Status (24)
Country | Link |
---|---|
US (1) | US4869470A (fr) |
EP (1) | EP0313889B1 (fr) |
JP (1) | JPH01142018A (fr) |
CN (1) | CN1015474B (fr) |
AT (1) | ATE65800T1 (fr) |
AU (1) | AU601084B2 (fr) |
BG (1) | BG49829A3 (fr) |
BR (1) | BR8805558A (fr) |
CA (1) | CA1313043C (fr) |
CS (1) | CS276378B6 (fr) |
DD (1) | DD283455A5 (fr) |
DE (2) | DE3736502C1 (fr) |
DK (1) | DK164747C (fr) |
ES (1) | ES2023994B3 (fr) |
FI (1) | FI85386C (fr) |
HU (1) | HU199903B (fr) |
IL (1) | IL87761A (fr) |
IN (1) | IN170643B (fr) |
NO (1) | NO169783C (fr) |
PL (1) | PL156379B1 (fr) |
PT (1) | PT88895B (fr) |
SU (1) | SU1813194A3 (fr) |
YU (1) | YU46575B (fr) |
ZA (1) | ZA886832B (fr) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0344413B1 (fr) * | 1988-05-31 | 1993-05-12 | Ipsen Industries International Gesellschaft Mit Beschränkter Haftung | Four pour le traitement thermique de pièces en fer et en acier |
WO1994016278A1 (fr) * | 1993-01-14 | 1994-07-21 | Seco/Warwick Spólka Z O.O. (Ltd) | Four a vide pour traitement thermique |
EP0727498A1 (fr) * | 1995-01-23 | 1996-08-21 | ALD Vacuum Technologies GmbH | Procédé et installation de refroidissement de pièces à usiner, en particulier pour leur durcissement |
WO1997000974A1 (fr) * | 1995-06-22 | 1997-01-09 | Aga Aktiebolag (Publ) | Procede et appareil de traitement de composants a l'aide d'un melange de gaz |
DE10117987A1 (de) * | 2001-04-10 | 2002-10-31 | Ald Vacuum Techn Ag | Chargiergestell für die Wärme- und/oder Kühlbehandlung von zu härtenden Metallteilen |
DE102019204869A1 (de) * | 2019-04-05 | 2020-10-08 | Audi Ag | Abschreckvorrichtung zur chargenweisen Abschreckkühlung von Metallbauteilen |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3735186C1 (de) * | 1987-10-17 | 1988-09-15 | Ulrich Wingens | Vakuum-Kammerofen |
DE3736501C1 (de) * | 1987-10-28 | 1988-06-09 | Degussa | Verfahren zur Waermebehandlung metallischer Werkstuecke |
DE3910234C1 (fr) * | 1989-03-30 | 1990-04-12 | Degussa Ag, 6000 Frankfurt, De | |
DE3933423C2 (de) * | 1989-10-06 | 1994-12-22 | Nokia Deutschland Gmbh | Vorrichtung zur Wärmebehandlung, insbesondere für LCD-Substratplatten |
JP2656839B2 (ja) * | 1989-12-15 | 1997-09-24 | 神鋼コベルコツール株式会社 | 真空熱処理炉 |
DE4034085C1 (fr) * | 1990-10-26 | 1991-11-14 | Degussa Ag, 6000 Frankfurt, De | |
JPH0569595U (ja) * | 1992-02-27 | 1993-09-21 | 中外炉工業株式会社 | 炉冷促進機能を有する真空熱処理炉 |
TW366409B (en) * | 1997-07-01 | 1999-08-11 | Exxon Production Research Co | Process for liquefying a natural gas stream containing at least one freezable component |
KR100307996B1 (ko) * | 1999-06-25 | 2001-09-24 | 이용익 | 열처리 진공 로 |
KR100495267B1 (ko) * | 2002-10-29 | 2005-06-16 | 주식회사제4기한국 | 자동 진공 금형 열처리 장치 |
JP4280981B2 (ja) * | 2003-06-27 | 2009-06-17 | 株式会社Ihi | 真空熱処理炉の冷却ガス風路切替え装置 |
PL202005B1 (pl) * | 2004-11-19 | 2009-05-29 | Politechnika & Lstrok Odzka In | Urządzenie do hartowania z zamkniętym obiegiem wodoru |
CN101804489B (zh) * | 2010-04-23 | 2011-10-05 | 山东高唐杰盛半导体科技有限公司 | 直热式真空焊接炉 |
JP5496828B2 (ja) * | 2010-08-27 | 2014-05-21 | 東京エレクトロン株式会社 | 熱処理装置 |
KR101439380B1 (ko) * | 2012-10-31 | 2014-09-11 | 주식회사 사파이어테크놀로지 | 사파이어 단결정 열처리 방법 및 장치 |
CN104180668A (zh) * | 2013-05-23 | 2014-12-03 | 上海颐柏热处理设备有限公司 | 一种箱式热处理炉加热室快速降温的装置 |
CN105296899B (zh) * | 2015-10-26 | 2017-08-04 | 陈芬芬 | 一种铝合金工件热处理炉内的导流装置 |
CN106148883A (zh) * | 2016-08-31 | 2016-11-23 | 潍坊丰东热处理有限公司 | 一种井式氮化炉内冷却系统 |
WO2018099149A1 (fr) * | 2016-11-29 | 2018-06-07 | 张跃 | Système de brasage à air chaud sans oxygène |
CN108213639A (zh) * | 2016-12-12 | 2018-06-29 | 张跃 | 一种钎焊炉保温循环系统 |
CN107164627B (zh) * | 2017-04-18 | 2018-10-16 | 燕山大学 | 一种铝合金管循环退火处理设备炉 |
DE102017128076A1 (de) | 2017-11-28 | 2019-05-29 | Gautschi Engineering Gmbh | Chargenofen für Glühgut und Verfahren zur Wärmebehandlung eines Ofengutes |
RU2705186C1 (ru) * | 2019-01-14 | 2019-11-05 | Общество с ограниченной ответственностью "Катод" | Способ охлаждения заготовки в вакуумной камере нагрева вакуумной печи и вакуумная печь |
KR102014809B1 (ko) * | 2019-04-26 | 2019-08-27 | 이준연 | 불활성 가스를 이용한 열처리로 |
CN111153406B (zh) * | 2019-12-24 | 2021-06-04 | 山东天岳先进科技股份有限公司 | 一种用于制备碳化硅粉料的合成炉和合成方法 |
CN113847805B (zh) * | 2021-09-28 | 2023-07-21 | 山东交通学院 | 一种超高温烧结炉 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1259919B (de) * | 1964-06-12 | 1968-02-01 | Harold Norregard Ipsen | Ofen zur Waermebehandlung von Werkstuecken aus Metall |
DE1919493A1 (de) | 1969-04-17 | 1970-11-05 | Ipsen Ind Internat Gmbh | Atmosphaeren-Vakuumofen |
US4113977A (en) * | 1977-08-19 | 1978-09-12 | Brown Boveri Corporation | Preheating system with gas recirculation |
DE2839807A1 (de) | 1978-09-13 | 1980-03-27 | Degussa | Vakuumofen mit gaskuehleinrichtung |
DE2844843A1 (de) | 1978-10-14 | 1980-04-30 | Ipsen Ind Int Gmbh | Industrieofen zur waermebehandlung metallischer werkstuecke |
US4235592A (en) * | 1979-08-29 | 1980-11-25 | Autoclave Engineers, Inc. | Autoclave furnace with mechanical circulation |
EP0163906A2 (fr) * | 1984-05-08 | 1985-12-11 | Schmetz GmbH & Co. KG Unternehmensverwaltung | Procédé et four sous vide pour le traitement thermique d'une charge |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1617056A (en) * | 1926-04-10 | 1927-02-08 | Charles F Kenworthy Inc | Furnace |
-
1987
- 1987-10-28 DE DE3736502A patent/DE3736502C1/de not_active Expired
-
1988
- 1988-09-12 IN IN764/CAL/88A patent/IN170643B/en unknown
- 1988-09-13 ZA ZA886832A patent/ZA886832B/xx unknown
- 1988-09-15 IL IL87761A patent/IL87761A/xx unknown
- 1988-09-30 FI FI884514A patent/FI85386C/fi not_active IP Right Cessation
- 1988-10-04 NO NO884390A patent/NO169783C/no unknown
- 1988-10-05 DE DE8888116478T patent/DE3864008D1/de not_active Expired - Lifetime
- 1988-10-05 EP EP88116478A patent/EP0313889B1/fr not_active Expired - Lifetime
- 1988-10-05 ES ES88116478T patent/ES2023994B3/es not_active Expired - Lifetime
- 1988-10-05 AT AT88116478T patent/ATE65800T1/de not_active IP Right Cessation
- 1988-10-13 JP JP63256097A patent/JPH01142018A/ja active Pending
- 1988-10-17 YU YU193888A patent/YU46575B/sh unknown
- 1988-10-17 BG BG85723A patent/BG49829A3/xx unknown
- 1988-10-21 US US07/260,771 patent/US4869470A/en not_active Expired - Fee Related
- 1988-10-25 PL PL1988275470A patent/PL156379B1/pl unknown
- 1988-10-26 DD DD88321107A patent/DD283455A5/de not_active IP Right Cessation
- 1988-10-26 SU SU884356698A patent/SU1813194A3/ru active
- 1988-10-26 CN CN88108739A patent/CN1015474B/zh not_active Expired
- 1988-10-27 HU HU885615A patent/HU199903B/hu not_active IP Right Cessation
- 1988-10-27 CS CS887112A patent/CS276378B6/cs unknown
- 1988-10-27 BR BR8805558A patent/BR8805558A/pt not_active IP Right Cessation
- 1988-10-27 DK DK596488A patent/DK164747C/da not_active IP Right Cessation
- 1988-10-27 CA CA000581507A patent/CA1313043C/fr not_active Expired - Fee Related
- 1988-10-27 AU AU24405/88A patent/AU601084B2/en not_active Ceased
- 1988-10-28 PT PT88895A patent/PT88895B/pt not_active IP Right Cessation
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1259919B (de) * | 1964-06-12 | 1968-02-01 | Harold Norregard Ipsen | Ofen zur Waermebehandlung von Werkstuecken aus Metall |
DE1919493A1 (de) | 1969-04-17 | 1970-11-05 | Ipsen Ind Internat Gmbh | Atmosphaeren-Vakuumofen |
US4113977A (en) * | 1977-08-19 | 1978-09-12 | Brown Boveri Corporation | Preheating system with gas recirculation |
DE2839807A1 (de) | 1978-09-13 | 1980-03-27 | Degussa | Vakuumofen mit gaskuehleinrichtung |
DE2839807C2 (de) * | 1978-09-13 | 1986-04-17 | Degussa Ag, 6000 Frankfurt | Vakuumofen mit Gaskühleinrichtung |
DE2844843A1 (de) | 1978-10-14 | 1980-04-30 | Ipsen Ind Int Gmbh | Industrieofen zur waermebehandlung metallischer werkstuecke |
DE2844843C2 (de) * | 1978-10-14 | 1985-09-12 | Ipsen Industries International Gmbh, 4190 Kleve | Industrieofen zur Wärmebehandlung metallischer Werkstücke |
US4235592A (en) * | 1979-08-29 | 1980-11-25 | Autoclave Engineers, Inc. | Autoclave furnace with mechanical circulation |
EP0163906A2 (fr) * | 1984-05-08 | 1985-12-11 | Schmetz GmbH & Co. KG Unternehmensverwaltung | Procédé et four sous vide pour le traitement thermique d'une charge |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0344413B1 (fr) * | 1988-05-31 | 1993-05-12 | Ipsen Industries International Gesellschaft Mit Beschränkter Haftung | Four pour le traitement thermique de pièces en fer et en acier |
WO1994016278A1 (fr) * | 1993-01-14 | 1994-07-21 | Seco/Warwick Spólka Z O.O. (Ltd) | Four a vide pour traitement thermique |
EP0727498A1 (fr) * | 1995-01-23 | 1996-08-21 | ALD Vacuum Technologies GmbH | Procédé et installation de refroidissement de pièces à usiner, en particulier pour leur durcissement |
WO1997000974A1 (fr) * | 1995-06-22 | 1997-01-09 | Aga Aktiebolag (Publ) | Procede et appareil de traitement de composants a l'aide d'un melange de gaz |
US5938866A (en) * | 1995-06-22 | 1999-08-17 | Aga Aktiebolag | Method and an apparatus for the treatment of components by a gas mixture |
DE10117987A1 (de) * | 2001-04-10 | 2002-10-31 | Ald Vacuum Techn Ag | Chargiergestell für die Wärme- und/oder Kühlbehandlung von zu härtenden Metallteilen |
DE102019204869A1 (de) * | 2019-04-05 | 2020-10-08 | Audi Ag | Abschreckvorrichtung zur chargenweisen Abschreckkühlung von Metallbauteilen |
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