EP2547485A1 - Procédé de production de disques scellés - Google Patents

Procédé de production de disques scellés

Info

Publication number
EP2547485A1
EP2547485A1 EP11703121A EP11703121A EP2547485A1 EP 2547485 A1 EP2547485 A1 EP 2547485A1 EP 11703121 A EP11703121 A EP 11703121A EP 11703121 A EP11703121 A EP 11703121A EP 2547485 A1 EP2547485 A1 EP 2547485A1
Authority
EP
European Patent Office
Prior art keywords
sealing
tear
metal material
base plate
sealing part
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.)
Withdrawn
Application number
EP11703121A
Other languages
German (de)
English (en)
Inventor
François CHEVALLEY
Jürg LANZ
Marcel Oberholzer
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.)
Soudronic AG
Original Assignee
Soudronic 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 Soudronic AG filed Critical Soudronic AG
Publication of EP2547485A1 publication Critical patent/EP2547485A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00—Electron-beam welding or cutting
    • B23K15/0006—Electron-beam welding or cutting specially adapted for particular articles or work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/008—Soldering within a furnace
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/14—Soldering, e.g. brazing, or unsoldering specially adapted for soldering seams
    • B23K1/18—Soldering, e.g. brazing, or unsoldering specially adapted for soldering seams circumferential seams, e.g. of shells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00—Electron-beam welding or cutting
    • B23K15/0046—Welding
    • B23K15/0053—Seam welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/02—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
    • B23K20/021—Isostatic pressure welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/32—Bonding taking account of the properties of the material involved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/34—Laser welding for purposes other than joining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • B23K26/356—Working by laser beam, e.g. welding, cutting or boring for surface treatment by shock processing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/001—Interlayers, transition pieces for metallurgical bonding of workpieces
    • B23K35/004—Interlayers, transition pieces for metallurgical bonding of workpieces at least one of the workpieces being of a metal of the iron group
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/001—Interlayers, transition pieces for metallurgical bonding of workpieces
    • B23K35/007—Interlayers, transition pieces for metallurgical bonding of workpieces at least one of the workpieces being of copper or another noble metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/01—Machines characterised by incorporation of means for making the closures before applying
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
    • C23C26/02—Coating not provided for in groups C23C2/00 - C23C24/00 applying molten material to the substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/02—Iron or ferrous alloys
    • B23K2103/04—Steel or steel alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/12—Copper or alloys thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/18—Dissimilar materials
    • B23K2103/22—Ferrous alloys and copper or alloys thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic materials other than metals or composite materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing

Definitions

  • the invention relates to a method for producing sealing disks for the heat-sealing of tear-open films on metal cover rings, wherein a base plate made of a first metal material and an annular sealing part of a second metal material are provided and the metal material of the base plate has a greater thermal conductivity than the metal material of the sealing part and the metal material of the sealing member has a greater hardness than the metal material of the base plate. Furthermore, the invention relates to a sealing station according to claim 5 and a device for the production of tear-open according to claim. 6
  • lid for can or can-like packaging as on the packaging top permanently attached metal lid, which have a cover ring with a removal opening. This remains closed until the first use of the package contents by a tear-away film, which is secured by heat sealing on the cover ring.
  • Such covers are referred to as a peel-off lid.
  • the foil on the lid will referred to as tear film and may be, for example, a metal foil, a metal composite foil or a pure plastic film.
  • An additional, arranged over the metal lid lid made of plastic makes the packaging during the period of use of the contents again closed.
  • the object of the invention is to provide an improvement in the production of sealing discs for the production of tear-open lids.
  • the sealing part is attached to the base plate by a welding or soldering, after which the sealing part is cured by laser hardening, or that the sealing part on the Base plate is constructed by laser sintering, after which the seal member is optionally cured by laser hardening.
  • the welding is preferably as
  • Electron beam welding Alternatively, a diffusion welding can take place.
  • copper is used as the metal material for the base plate and steel is used as the metal material for the sealing part.
  • the object is achieved with the sealing station for heat-sealing of tear-open films on metal lid rings according to claim 5 or a device for producing tear-open lids according to claim 6.
  • Figure 1 is a schematic side view of an apparatus for producing tear-open
  • Figure 9 is a schematic view of the punching and applying the tearing film in the sealing station.
  • Figure 10 is a sectional view of a sealing station for the sealing of the tear-open film on the cover rings; .
  • Figure 11 shows the blank of a sealing disc in perspective view
  • Figure 12 is a sectional view through the blank of Figure 11;
  • Figure 13 is a sectional view through a finished sealing disc. Ways to carry out the invention
  • FIG. 1 shows a schematic side view of a device 1 for the production of tear-open lids.
  • This has on a machine frame 2 several processing stations 3 to 9.
  • a conveyor 10, 13, 14 conveys cover parts and the finished cover in the conveying direction, which is indicated by the arrow C ' , from the beginning of the device at the stack 11 to the end of the device, where the lid via slides into the trays 16 or 17 arrive , From the stack 11 lid parts are stacked in a known manner and get into the conveyor.
  • a known conveyor with two toothed belt according to WO 2006/017953 is used instead of the described conveyor preferably a known conveyor with two toothed belt according to WO 2006/017953 is used.
  • Such an endless belt drive is in the for the number of Processing stations necessary length provided and the stepwise, synchronized with the processing stations timing belt movement is effected by a stepper motor or servo motor, which drives the timing belt by sprockets.
  • Timing Belt Conveyor allows the production of higher cycle number covers of e.g. 200 lids per minute.
  • Figure 2 shows stacked metal lid blanks 20 as they are ready in the stack 11 at the beginning of the conveyor.
  • These blanks 20 are e.g. round metal discs of e.g. 11 cm diameter. Of course, other basic forms, e.g. square or rectangular discs and other diameters readily possible.
  • the blanks 20 have already been preformed in a processing machine, not shown, at its edge as shown in Figure 2. In the figure 2 and the following figures 3 to 8, only one sector of the entire disc or the lid is shown in each case in order to simplify the figures. In the first
  • Processing station 3 of Figure 1 is punched by punching with upper and lower tool an opening 29 in the disc, which can be seen in Figure 3, in which the edge of the opening is designated by 21 and the punched round disc with 27.
  • This disc 27th enters as waste into the container 12 of Figure 1.
  • annular lid portion 20 'with an opening which forms the removal opening of the finished lid there is an annular lid portion 20 'with an opening which forms the removal opening of the finished lid.
  • the punching processing station 3 is - as is the case with the other stations - driven by a drive 15.
  • the edge 21 is pulled down, whereby, for example, the shape 22 of the edge shown in FIG. 4 is achieved.
  • a rolled-up edge region is created, as shown for example in FIG.
  • the annular cover parts 20 'then enter the sealing station 5.
  • the tear-open film 25 can be, for example, a multi-layer composite film with plastic layers and aluminum layers, for example having a layer of hot-sealable polypropylene (PP) on the underside of the cover and a following layer of PET followed by an aluminum layer which again is provided with a PET at the top side of the tear-off film Layer is provided. Any printing is then arranged under this PET layer.
  • a further embodiment of the tear-open film may be a lid-side or filling material-side hot-seal lacquer layer followed by the aluminum layer and the top-side PET layer. Other embodiments are known in the art and can be used in the context of the present invention.
  • round film blank 25 is usually stamped out of a wide film web in the station 5.6 and placed over the central recess of the annular disc and through the sealing station, the film at the edge of the circular recess of the cover part 20 'under heat pressed so that the film 25 is sealed to the metal lid portion 20 'by melting and subsequent cooling of the sealable layer. This is achieved with the heated sealing disks of the sealing station and is known to the person skilled in the art and will not be explained in more detail here.
  • two sealing stations may be arranged one behind the other in the conveying direction, wherein then in the first sealing station, the punching out of the film section and a first sealing step take place which are not yet completely sealed Sealing created and in the second sealing station, a second seal, which then generates the finished, tight seal.
  • both sealing stations can be equipped with sealing discs according to the present invention.
  • the tear-open lid 28 is formed.
  • a cooling processing station can be provided for cooling.
  • the film 25 can be provided with a stamping 24 (FIG. 7), in particular if it is a metal foil.
  • the tear-open film is provided with a tear-open tab, then according to the prior art, the tab is bent over so that it comes to rest on the lid.
  • a processing station test station 9 the finished lid of a test for leaks are subjected. If the film is tightly mounted on the cover ring, the cover enters the receptacle 16 for the finished cover. If a leak is detected, the lid passes over the other slide shown in the waste container 17th
  • FIG. 9 shows, roughly schematically, part of a device for producing tear-open lids from above, which is, for example, a device according to FIG.
  • a device for producing tear-open lids from above which is, for example, a device according to FIG.
  • four rows of cover parts 20 'or cover 28 are conveyed parallel in the conveying direction C.
  • a belt 35 of the tear-open film material enters the sealing station and is punched there to form the film sections 25 with the tear-open tab 29 which then directly after the sealing station Punching be sealed on the cover ring.
  • the stamping is chosen so that as little as possible stamping waste remains.
  • the punching of the individual film sections 25 in the sealing station can be controlled by printing marks on the belt, for example.
  • the belt 35 may be conveyed by drive rollers 36 or in other known ways.
  • the punched-out foil sections are then each sealed onto the associated cover ring, as is known to the person skilled in the art.
  • Figure 10 shows a sectional view of a known sealing station, as it is used for sealing the tear-open film on the cover ring.
  • a lower part of the sealing station 41 has a support 50 for the lower sealing work, which is preferably formed by a sealing disk 44 produced according to the invention, which acts on the lower side of the tear-open cover ring or on the sealable side of the tear-open film.
  • the sealing station has an upper part 51, which carries the upper tool or an upper sealing disk 45, which is preferably also produced according to the invention.
  • FIGS. 11 and 12 show a blank 55 for the formation of the sealing disk, which has already been formed from two different metal materials, by a base plate 53 made of a good heat-conductive metal, in particular copper or bronze, with an annular sealing part 54 a harder metal, especially steel, by electron beam welding has been connected.
  • Electron beam welding is known and brings the required welding energy of accelerated by high voltage electrons in the process zone. When the electrons collide, they convert a large part of their kinetic energy into heat. The welding is performed circumferentially around the blank along the joint line, as indicated by the arrow F in FIG. Welding devices for carrying out this welding are known to the person skilled in the art and are commercially available.
  • the blank is machined, for example by turning, milling, grinding, to produce the desired final shape of a sealing disc 44, which is shown as an example in Figure 13 in a sectional view.
  • the actual sealing surface 56 made of steel is hardened by laser beam hardening.
  • High-power diode lasers are known.
  • the laser beam briefly heats a locally limited thin surface layer up to the austenitizing temperature of the steel (depending on the material, about 900 degrees Celsius to 1400 degrees Celsius). As a result of the low
  • Welding is the diffusion welding, in which the parts to be joined are joined together at high pressure. This can be done under vacuum or under a protective gas. Furthermore, the parts can be heated. This results in the finished state, an atomic connection of the surfaces by plastic and local deformation in the micro range.
  • the step of joining by vacuum soldering can be done.
  • the others described above Steps remain the same.
  • the vacuum brazing is a joining of materials made of mostly different materials, done in vacuum under reduced pressure at temperatures up to 900 ° C. The vacuum helps to minimize the oxidation of the two parts and the solder and prevents voids.
  • the annular sealing part is constructed by laser sintering on the base plate.
  • SLS selective laser sintering
  • the sealing disk is built up layer by layer of metal powder.
  • the metal powder is applied to the base plate, e.g. in a layer of 0.001 to 0.2 millimeters, and the layers are each sintered by means of a laser.
  • the use of a metallic powder without addition of a binder is preferred, wherein the powder is completely melted, in particular by a CW laser.
  • SLS Selective Laser Melting
  • SLS Selective Laser Melting
  • Sealing disks for the production of tear-open lids from cover rings with tear-open film sealed thereon are thus produced by affixing an annular sealing member, preferably made of steel, by electron beam welding or diffusion welding and alternatively by vacuum brazing to a baseplate made of copper, for example, followed by the sealing member hardened by laser hardening.
  • a structure of the seal member by laser sintering, possibly without subsequent laser hardening can be produced cheaply.
  • the high thermal conductivity of such sealing discs at the sealing station or in the device for the production of tear-open lids allows high cycle times with good and uniformly lasting seal quality.
  • the temperature control in the sealing station or the device for the production of tear-open lids is also easier because the step response to the heating command occurs faster.
  • the hardened sealing disc surface avoids wear in the sealing station and the device, concomitant contamination and deformations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Closing Of Containers (AREA)
  • Closures For Containers (AREA)

Abstract

L'invention concerne des disques scellés (44) pour la production de couvercles à ouverture facile composés de bagues périphériques, sur lesquelles sont scellés des opercules pelables, lesdits disques scellés étant obtenus par la fixation d'un élément scellé annulaire en acier (54) sur une plaque de base (53) en cuivre par exemple par soudage par faisceau d'électrons, l'élément scellé annulaire étant ensuite durci par laser. Cela permet d'obtenir un disque scellé de bonne conduction thermique et de bonne résistance à l'usure.
EP11703121A 2010-03-19 2011-01-25 Procédé de production de disques scellés Withdrawn EP2547485A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00414/10A CH702855A1 (de) 2010-03-19 2010-03-19 Verfahren zur Herstellung von Siegelscheiben.
PCT/CH2011/000008 WO2011113163A1 (fr) 2010-03-19 2011-01-25 Procédé de production de disques scellés

Publications (1)

Publication Number Publication Date
EP2547485A1 true EP2547485A1 (fr) 2013-01-23

Family

ID=43920108

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11703121A Withdrawn EP2547485A1 (fr) 2010-03-19 2011-01-25 Procédé de production de disques scellés

Country Status (6)

Country Link
US (1) US20130048614A1 (fr)
EP (1) EP2547485A1 (fr)
CN (1) CN102770230A (fr)
CH (1) CH702855A1 (fr)
TW (1) TW201200421A (fr)
WO (1) WO2011113163A1 (fr)

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CN102770230A (zh) 2012-11-07
WO2011113163A1 (fr) 2011-09-22
US20130048614A1 (en) 2013-02-28
TW201200421A (en) 2012-01-01
CH702855A1 (de) 2011-09-30

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