[go: up one dir, main page]

EP1024910B1 - Dispositif d'encapsulage d'ebauches en alliages metalliques haute temperature - Google Patents

Dispositif d'encapsulage d'ebauches en alliages metalliques haute temperature Download PDF

Info

Publication number
EP1024910B1
EP1024910B1 EP98949898A EP98949898A EP1024910B1 EP 1024910 B1 EP1024910 B1 EP 1024910B1 EP 98949898 A EP98949898 A EP 98949898A EP 98949898 A EP98949898 A EP 98949898A EP 1024910 B1 EP1024910 B1 EP 1024910B1
Authority
EP
European Patent Office
Prior art keywords
sheath
shell
blank
extrusion
inner sheath
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
Application number
EP98949898A
Other languages
German (de)
English (en)
Other versions
EP1024910A1 (fr
Inventor
Fritz Appel
Uwe Lorenz
Michael Oehring
Richard Wagner
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.)
GKSS Forshungszentrum Geesthacht GmbH
Original Assignee
GKSS Forshungszentrum Geesthacht GmbH
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 GKSS Forshungszentrum Geesthacht GmbH filed Critical GKSS Forshungszentrum Geesthacht GmbH
Publication of EP1024910A1 publication Critical patent/EP1024910A1/fr
Application granted granted Critical
Publication of EP1024910B1 publication Critical patent/EP1024910B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C33/00—Feeding extrusion presses with metal to be extruded ; Loading the dummy block
    • B21C33/004—Composite billet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/22—Making metal-coated products; Making products from two or more metals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12229—Intermediate article [e.g., blank, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12389—All metal or with adjacent metals having variation in thickness
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component

Definitions

  • the invention relates to a device for encapsulation of blanks made of metallic high-temperature alloys, especially TiAl alloys used for hot forming be subjected to an extrusion, the Encapsulation at least from a first, the blank closely but spaced enclosing first inner shell consists.
  • JP-A-01 027715 a device is known from which is a blank made of a metallic high-temperature alloy an encapsulation from a blank enclosing the blank Has shell.
  • the shell is made made of copper.
  • Metallic high-temperature alloys are used Manufacture of highly stressed or highly stressable Components used, for example as components for Use in turbines to power aircraft and like. To achieve the desired properties, e.g. height Strengths will be achieved for certain components basically required that they have been hot formed are.
  • TiAl alloys as certain metallic high temperature alloy is a forming of the components also with regard to the setting certain structures are required, which are in other ways cannot be achieved by melt metallurgy. It has shown that hot forming of TiAl ingots Temperatures of 1100 ° C required, compare Y.-W. Kim, D.M. Dimiduk, J. Metals 43 (1991) 40.
  • the object is achieved according to the invention in that one enclosing the inner shell closely but at a distance second, outer shell is provided, the first and the second shell made of a metallic material consist.
  • the advantage of the solution according to the invention is that that an optimal shield against heat radiation from the blank, i.e. the core of the device will, which is fundamentally at the present temperatures the main cause of heat loss is whereby it is furthermore advantageously possible is an optimal heat conduction resistance Achieve vacuum insulation and finally advantageously to avoid convection as well as the Avoidance of material pairings, which in the case of a Extrusion of this type requires high temperatures lead to undesirable reactions.
  • the outer shell of the device faces like experiments have resulted, preferably a wall thickness of 5 to 10 mm, with the outer shell basically made of steel or preferably a titanium alloy, e.g. Ti6Al4V, can be formed.
  • the inner shell only a wall thickness in the range of 0.1 up to 1 mm, but particularly advantageously one Wall thickness of 0.3 mm is sufficient to reduce the Achieve radiation performance by 33%. Due to the high heating and processing temperature on the one hand but it is also advantageous for cost reasons as an inner shell sheets or foils made of molybdenum and / or tantalum to use, which have low emissivity have ⁇ . This also makes material pairings avoided that applied to the high temperatures lead to undesirable reactions.
  • the webs especially if it is is an outer hollow cylindrical cross section Wrapping acts, by unscrewing or suitable milling of the outer shell.
  • the webs are in the outer wrapping and the inner blank or core of the device preferably to train such that their contact surface with very small compared to the adjacent inner shell the remaining lateral surface is.
  • the attachment can only be one inner shell that the radiation shield mentioned forms, to a reduction in the radiation power lead by 33%.
  • the radiated power to decrease even further it is with another advantageous embodiment of the device possible, to provide a third and a fourth shell, also each closely spaced between the first shell and the second shell and each of these are closely spaced.
  • the choice of other covers will depend on the extent to which for the special Extrusion process depending on the one forming the blank Material is considered necessary, one same resistance to deformation of sheath and core material to reach.
  • the device with at least two sleeves can also in the configuration of the device described above be advantageous with four shells, the first, inner shell adjacent third shell with a Plurality of both the first and fourth shells Sheath-facing webs to provide the as Spacer to the adjacent first shell and fourth shell act.
  • too Bridges by turning or milling the third shell are formed, the corresponding, Turning or milling the blank mentioned above or the outer second shell to form the there Webs, as described, remains unaffected or in the same manner as described can.
  • the third shell advantageously consists of the same material as the second shell, advantageously the fourth shell made of the same material how the first shell is made.
  • FIGS. 1 and 2 is a device 10 according to the Invention shown, the extrusion too undergoing blank 11 from a metallic high temperature alloy, especially a TiAl alloy, essentially has a cylindrical cross section, accordingly, the device 10 also corresponds also essentially a cylindrical cross section having.
  • this shape of the blank 11 or the device 10 by no means always has to be cylindrical, because they are also many other possible configurations of the blank possible, even before the final extrusion a roughly adapted to the shape to be taken later Can have shape.
  • the construction principles of the device 10 apply generally, with reference to the representations of the device 10 according to FIGS. 1 and 2 with a substantially circular cross-sectional shape.
  • a blank 11 is arranged in the device 10 and of a first, inner shell 12 and a second outer shell 13 surrounded, compare in particular figure 1.
  • the wrapping of the blank 11 in the design the device 10 of Figure 1 is complete, i.e. it is not just the outer, cylindrical surface here of the blank 11 surrounded by the sleeves 12, 13, but also the respective flat end faces of the blank 11.
  • the first, inner shell 12 encloses closely but at a distance the blank 11, the inner shell 12 for example a wall thickness of 0.1 to 1 mm, preferably 0.3 mm.
  • the inner shell which is sheet-shaped is preferably made of tantalum or molybdenum. Basically, however, all other are suitable Materials with low emissivity ⁇ are used provided they do not match the material of the blank (11) or the outer shell (18) react.
  • the second, outer shell 13 has a much larger size Wall thickness than the inner shell 12, for example in Range from 5 to 10 mm. Both for the inner shell 12 as well as the outer shell 13 applies that also essentially flat end faces of the blank 11 with the same Cover structure, as described above, covered become.
  • the outer shell 13 can for example be made of steel or any other suitable material for this Purposes, for example TiA16V4.
  • the webs 110 on the blank 11 and the webs 131 which are likewise formed in an analogous manner on the second outer shell 13, staggered. All in all, the entirety of the casing made up of the first casing 12 and the second casing 13 acts as a double radiation protection shield, with the result that the power emitted by the blank 11 is reduced to approximately one third in comparison to the unprotected blank 11.
  • a third shell 14 and a fourth shell 15 are also provided. These sleeves 14, 15 are also closely spaced from one another closely spaced. In this case too has the one adjacent to the first, inner shell 12 third shell 14 a plurality of both to the first shell 12 as well as the fourth shell 15 facing webs 140 on. The webs 140 also serve as spacers to the adjacent first shell 12 and the also adjacent fourth shell 15.
  • the third shell 14 can be made of the same material as that second shell 13 exist.
  • the fourth shell 15 can consist of the same material as the first shell 12.
  • the device according to the invention is not only limited to the extrusion of titanium aluminides, rather, reshaping is also possible by extrusion at temperatures above 1000 ° C for other metallic high-temperature alloys applied very successfully.
  • At least the first casing 12 makes the blank vacuum-tight, taking the necessary evacuation of the gaps between at least the first shell 12 and the blank 11 is achieved by having the lid and the bottom at least the first shell 12 by inexpensive Electron beam welding welded in a vacuum chamber.
  • the manufacture of the device 10 can thus be designed relatively inexpensively.
  • the other shells 13 to 15 of the device can if necessary, be vacuum-tight.
  • ⁇ 0.3 often applies.
  • the resulting heat losses can be very effectively prevented at high temperatures by attaching one or more radiation shields (shells) which are introduced between the hot body or blank 11 and the cold environment.
  • the strands were cut open and the cross-sectional shape of the TiAl blank 10 was monitored over the length of the strand.
  • circular cross sections of the TiAl raw ring 10 with a diameter of 22.9 mm should result with the selected transducer diameter of 85 mm and the die diameter of 30 mm.
  • 3a-3d show the minimum and maximum diameters of the generally oval cross sections of the TiAl blank 10 after these tests. The results show that in the case of the TiAl6V4 capsule without thermal insulation, the most unfavorable conditions are present, i.e.
  • the core cross-section shows the greatest differences between the minimum (d min ) and maximum (d max ) diameter and is due to the low deformation resistance of the TiAl6V4 alloy with the core material sometimes considerably above the ideal value of 22.9 mm.
  • the cross section varies significantly over the length of the strand. In the case of steel encapsulation without thermal insulation, the cross-sections are more approximate to the circular shape and the diameter curve over the length is more uniform, but the values are above the ideal value of 22.9 mm. In contrast, the use of an encapsulation made of steel with thermal insulation leads to a diameter progression of 22.9 mm, whereby the most even progression is observed for the extended waiting time of 50 s.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Insulation (AREA)
  • Powder Metallurgy (AREA)
  • Forging (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)

Claims (15)

  1. Dispositif (10) d'encapsulage d'ébauches (11) en alliages métalliques à hautes températures, en particulier des alliages TiAl qui sont soumis à un forgeage à chaud d'une extrusion, l'encapsulage étant composé d'au moins une première gaine interne (12) enveloppant l'ébauche (11) de manière étroite mais avec un intervalle, caractérisé en ce qu'une deuxième gaine externe (13), enveloppant la gaine interne (12) de manière étroite mais avec un intervalle, est prévue, la première et la deuxième gaines (12, 13) étant constituée d'un matériau métallique.
  2. Dispositif selon la revendication 1, caractérisé en ce que la gaine interne (12) est constituée d'un élément en forme de tôle.
  3. Dispositif selon une des revendications 1 ou 2, caractérisé en ce que la gaine interne (12) présente une épaisseur de paroi (120) de 0,1 à 1 mm.
  4. Dispositif selon la revendication 3 caractérisé en ce que l'épaisseur de paroi (120) est de 0,3 mm.
  5. Dispositif selon une ou plusieurs des revendications 1 à 4, caractérisé en ce que la gaine interne est constituée de molybdène ou de tantale.
  6. Dispositif selon une ou plusieurs des revendications 1 à 5 caractérisé en ce que la gaine externe présente une épaisseur de paroi (130) de 5 à 10 mm.
  7. Dispositif selon une ou plusieurs des revendications 1 à 6 caractérisé en ce que la gaine externe est constituée d'acier.
  8. Dispositif selon une ou plusieurs des revendications 1 à 6 caractérisé en ce que la gaine externe (13) est constituée de TiAl6V4.
  9. Dispositif selon une ou plusieurs des revendications 1 à 8 caractérisé en ce que l'ébauche (11) comporte plusieurs tiges (110) en saillie qui servent d'entretoises avec la gaine interne (12) entourant l'ébauche (11).
  10. Dispositif selon une ou plusieurs des revendications 1 à 9 caractérisé en ce que la gaine externe (13) comporte plusieurs tiges en saillie dirigées vers la gaine interne, qui servent d'entretoises avec la gaine interne (12).
  11. Dispositif selon une ou plusieurs des revendications 1 à 10 caractérisé en ce qu'une troisième et une quatrième gaine (15) sont prévues, qui sont disposées à un faible intervalle entre elles entre la première gaine (12) et la deuxième gaine (13) et disposées à une faible distance de celles-ci.
  12. Dispositif selon la revendication 11 caractérisé en ce que la troisième gaine (14) située à un certain intervalle de la gaine interne (12) comporte plusieurs tiges (140) dirigées vers la première gaine (12) ainsi que vers la quatrième gaine (15), qui servent d'entretoises avec la première gaine (12) et la quatrième gaine (15) voisines.
  13. Dispositif selon une ou plusieurs des revendications 11 ou 12 caractérisé en ce que la troisième gaine (14) est constituée du même matériau que la deuxième gaine (13).
  14. Dispositif selon une ou plusieurs des revendications 11 à 13, caractérisé en ce que la quatrième gaine (15) est constituée du même matériau que la première gaine (12).
  15. Dispositif selon une ou plusieurs des revendications 1 à 14 caractérisé en ce qu'au moins la gaine externe (13) entoure l'ébauche (11) de manière étanche au vide.
EP98949898A 1997-10-25 1998-08-17 Dispositif d'encapsulage d'ebauches en alliages metalliques haute temperature Expired - Lifetime EP1024910B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19747257A DE19747257C2 (de) 1997-10-25 1997-10-25 Vorrichtung zur Kapselung von Rohlingen aus metallischen Hochtemperatur-Legierungen
DE19747257 1997-10-25
PCT/DE1998/002369 WO1999021667A1 (fr) 1997-10-25 1998-08-17 Dispositif d'encapsulage d'ebauches en alliages metalliques haute temperature

Publications (2)

Publication Number Publication Date
EP1024910A1 EP1024910A1 (fr) 2000-08-09
EP1024910B1 true EP1024910B1 (fr) 2002-12-04

Family

ID=7846658

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98949898A Expired - Lifetime EP1024910B1 (fr) 1997-10-25 1998-08-17 Dispositif d'encapsulage d'ebauches en alliages metalliques haute temperature

Country Status (5)

Country Link
US (1) US6420051B1 (fr)
EP (1) EP1024910B1 (fr)
AT (1) ATE228896T1 (fr)
DE (2) DE19747257C2 (fr)
WO (1) WO1999021667A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10134525A1 (de) * 2001-07-16 2003-01-30 Gfe Met & Mat Gmbh Verfahren zum kapsellosen Umformen von gamma-TiAl-Werkstoffen
DE102005018658B3 (de) * 2005-04-21 2006-10-12 Brandenburgische Technische Universität Cottbus Verfahren und Vorrichtung zum Kapseln und Warmumformen von Rohlingen aus metallischen Hochtemperatur-Legierungen
US7923127B2 (en) * 2005-11-09 2011-04-12 United Technologies Corporation Direct rolling of cast gamma titanium aluminide alloys
EP2272664A1 (fr) * 2009-07-08 2011-01-12 Brandenburgische Technische Universität Procédé de fabrication des feuilles, tôles et pièces formées à partir d'un alliage ayant aluminium et titane comme éléments principaux
CN101817135B (zh) * 2010-04-13 2012-06-27 中南大学 一种TiAl基合金高温双层隔氧包套制作方法
CN107737812A (zh) * 2017-11-09 2018-02-27 河南科技大学 一种金属件挤压成形方法
CN112958626A (zh) * 2021-02-04 2021-06-15 西北工业大学 一种适用于TiAl合金轧制的包套及其制备方法
CN114247751B (zh) * 2021-12-22 2023-11-03 西北工业大学重庆科创中心 一种适用于tnm合金板材制备的方法
CN114346136B (zh) * 2021-12-27 2022-09-09 武汉理工大学 TiAl涡轮叶片应力-温度双增塑近净成形方法
CN119857780B (zh) * 2025-03-21 2025-07-04 太原理工大学 用于成形金属板材的高温成形真空包套和板材成形方法

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1398520A (en) * 1919-07-08 1921-11-29 Howgate Alfred Apparatus for use in annealing or otherwise treating metals
US1684391A (en) * 1927-01-26 1928-09-18 Green J Birchard Container for annealing and similar purposes
US2091666A (en) * 1936-07-06 1937-08-31 Frederick A Schwer Means for heat treatment of metal
CH197361A (de) * 1936-08-17 1938-04-30 Peter Ostendorf Verfahren zur Herstellung von plattierten Blechen, Platten und dergl.
US2102019A (en) * 1936-09-11 1937-12-14 Angus M Miller Carburizing box
US2861327A (en) * 1956-09-12 1958-11-25 Westinghouse Electric Corp Applying protective metal coatings on molybdenum
US3164884A (en) * 1959-09-30 1965-01-12 United States Steel Corp Multiple rolling of sheets
US3067073A (en) * 1959-11-19 1962-12-04 Reynolds Metals Co Rolled metal foil treatment
US3130089A (en) * 1960-07-05 1964-04-21 Ryan Aeronautical Co Heat treatment of preformed finishmachined articles
SE364884B (fr) * 1971-03-04 1974-03-11 Asea Ab
US4147506A (en) * 1977-10-14 1979-04-03 Allegheny Ludlum Industries, Inc. Method and apparatus for heating coils of strip
IT1158934B (it) * 1983-04-07 1987-02-25 Metalli Ind Spa Procedimento per la fabbricazione di superconduttori a 15 intrinsecamente multifilamentari e superconduttori ottenuti con tale procedimento
EP0201202B2 (fr) * 1985-04-05 1994-08-31 Nippon Steel Corporation Méthode de production de tôle plaquée par laminage à chaud
JPS6427715A (en) * 1987-07-21 1989-01-30 Hitachi Cable Hydraulic extrusion method for large deformation resistant metal and billet for this purpose
DE3919107A1 (de) * 1988-08-02 1990-02-08 Asea Brown Boveri Verfahren zur formgebung und verbesserung der mechanischen eigenschaften von pulvermetallurgisch hergestellten rohlingen aus einer legierung mit erhoehter warmfestigkeit durch strangpressen
US4966816A (en) * 1989-06-07 1990-10-30 Titanium Metals Corporation Of America (Timet) Pack assembly for hot rolling
JPH03177551A (ja) * 1989-12-05 1991-08-01 Sumitomo Metal Ind Ltd ＴｉＡｌ系金属間化合物の成形法
JPH0741304B2 (ja) * 1990-03-13 1995-05-10 株式会社神戸製鋼所 高Ａ１含有Ｔｉ合金の熱間押出方法
US5144825A (en) * 1990-09-27 1992-09-08 The Boeing Company Elevated temperature envelope forming
JPH04147712A (ja) * 1990-10-08 1992-05-21 Sumitomo Metal Ind Ltd 貴金属クラッドチタン線材の製造方法
DE9301293U1 (de) * 1993-01-30 1993-03-11 Ipsen Industries International Gmbh, 4190 Kleve Halterung zur partiellen Wärmebehandlung von Werkzeugen
JPH09171727A (ja) * 1995-12-19 1997-06-30 Furukawa Electric Co Ltd:The 金属系超電導線の製造方法

Also Published As

Publication number Publication date
ATE228896T1 (de) 2002-12-15
US6420051B1 (en) 2002-07-16
DE19747257A1 (de) 1999-05-06
DE19747257C2 (de) 2001-04-26
EP1024910A1 (fr) 2000-08-09
DE59806564D1 (de) 2003-01-16
WO1999021667A1 (fr) 1999-05-06

Similar Documents

Publication Publication Date Title
EP0122429B1 (fr) Matériau composite sous forme de barres, tubes, feuillards, tôles ou plaques, possédant des caractéristiques thermomécaniques réversibles et procédé pour sa fabrication
EP2431703B1 (fr) Traversée métal - matériau de fixation et son procédé de fabrication
EP2740142B1 (fr) Anode munie d'une direction principale d'extension linéaire
EP1024910B1 (fr) Dispositif d'encapsulage d'ebauches en alliages metalliques haute temperature
DE3874782T2 (de) Sicherung mit umhuellung aus fester keramik hoher dichte und herstellungsverfahren dieser sicherung.
EP0581784B1 (fr) Corps en nid d'abeille pouvant etre chauffe electriquement
EP0799369A1 (fr) Enveloppe a double paroi, en particulier pour les catalyseurs de gaz d'echappement de vehicules
DE3242959A1 (de) Heizvorrichtung fuer eine isostatische heisspressvorrichtung
DE19800926A1 (de) Wabenkörperanordnung mit einer mindestens eine Metallfolie enthaltenden Zwischenschicht
EP3777473B1 (fr) Résistance chauffante en céramique, élément de chauffage électrique ainsi qu'appareil pour chauffer un fluid
DE102012109740B4 (de) Elektrische Heizvorrichtung und Verfahren zur Herstellung einer solchen elektrischen Heizvorrichtung
EP2766908B1 (fr) Tube métallique; utilisation d'un tube métallique en tant qu'élément structural; procédé pour produire un tube métallique; élément structural métallique; déflecteur
DE3013560C2 (de) Hochofen-Plattenkühler
EP3694678B1 (fr) Procédé de fabrication d'une plaque métallique dotée d'un capteur de température intégré et plaque métallique ainsi fabriquée
EP1537921B1 (fr) Méthode de fabrication d'un tube multicouche pour le guidage des fluides de transfer de chaleur et tube multicouche
DE2208137A1 (de) Vertikaler Rohrofen für hohen Arbeitsdruck
DE3323377A1 (de) Beheiztes vorgespanntes schmiedegesenk fuer isothermes umformen von metallen
DE69810745T2 (de) GETTERPUMPE MIT EINTEILIGEM STüTZRAHMEN MIT MEHREREN ZU EINANDER PARALLELEN GETTERELEMENTEN AUS NICHTVERDAMPFBAREM MATERIAL
DE3883837T2 (de) Metalldampf-Laser.
DE19730383B4 (de) Verfahren zum Herstellen einer Struktur, die ein Element aus Formgedächtnislegierung enthält, und Baugruppe zur Durchführung des Verfahrens
AT523430B1 (de) Verfahren zur Herstellung eines Wärmerohres
DE102021133644A1 (de) Heizvorrichtung eines Abgassystems
DE2415152B2 (de) Kathodenanordnung für eine Wanderfeldröhre
WO2016050229A1 (fr) Dispositif de chauffage à haute puissance
EP4091884B1 (fr) Composant de blindage

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20000414

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT DE FR GB

17Q First examination report despatched

Effective date: 20010605

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE FR GB

REF Corresponds to:

Ref document number: 228896

Country of ref document: AT

Date of ref document: 20021215

Kind code of ref document: T

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59806564

Country of ref document: DE

Date of ref document: 20030116

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20030407

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20030905

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20120823

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20120831

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20121024

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20120822

Year of fee payment: 15

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 228896

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130817

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20130817

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140301

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20140430

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59806564

Country of ref document: DE

Effective date: 20140301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130817

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130817

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130902