WO2006042426A1 - Verfahren und vorrichtung zur dichtigkeitsprüfung von aufreissdeckeln - Google Patents
Verfahren und vorrichtung zur dichtigkeitsprüfung von aufreissdeckeln Download PDFInfo
- Publication number
- WO2006042426A1 WO2006042426A1 PCT/CH2005/000597 CH2005000597W WO2006042426A1 WO 2006042426 A1 WO2006042426 A1 WO 2006042426A1 CH 2005000597 W CH2005000597 W CH 2005000597W WO 2006042426 A1 WO2006042426 A1 WO 2006042426A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tear
- lid
- test
- film
- pressure
- Prior art date
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
Definitions
- the invention relates to a method for testing the tightness of a tear-open lid according to claim 1 and to a device for testing the tightness of tear-open lid according to claim 11.
- the invention further relates to an application of the method and to a use of the device.
- lids for can-like or büch ⁇ sen shame packaging as on the top of the package permanently attached metal lid, which form a removal opening, which closed until the first use of the packaging content by a heat seal applied, tear-off film, in particular Metallfo ⁇ is.
- the figures 2 to 8 are used to explain manufacturing steps in the production of such covers.
- the invention is based on the object to allow the tightness of Aufreissdeckeln in a simple way within their production line. Furthermore, the invention is based on the object to provide a quickly and easily working and space-saving in ⁇ into a production line inte gratable test device for the tightness of Dek- angles.
- Measuring from top to side of the tear-open film is a compact arrangement possible, which is particularly well suited for use in a purely linear production of covers.
- the measuring space can be enlarged in order to allow a bulging of the tear-open film under the bursting pressure.
- the burst pressure is preferably measured with the same sensor that is also used for leak testing.
- Figure 1 is a schematic side view of an apparatus for conveying and producing lids
- FIG. 9 shows a further preferred embodiment of a conveying device
- FIG. 10 shows an embodiment of a device for leak testing according to the present invention in a vertically sectioned illustration
- FIG. 11 shows the device according to FIG. 10 in the position for carrying out the measurement
- FIG. 12 shows the device according to FIG. 10 in a position for receiving a cover for bursting test
- FIG 13 shows the device according to claim 10 when performing the bursting test.
- FIG. 1 shows a schematic side view of a known device 1, which on a Maschinenge ⁇ 2 more processing stations 3 to 8 and a further station 9 has.
- a conveyor 10, 13, 14 conveys the lid parts or the finished lid with tear-off 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 covers over chutes in the Trays 16 or 17 arrive. From the stack 11 lid parts are pelted off in a known manner and reach the conveyor.
- the latter has two long rails 10, each of which is arranged individually on the side of the cover parts or cover, which cover parts or covers lying on trays 10 f or in stations 3 to 9 when lifting the rods 10 by means of the drive 14 in direction A.
- the rods are moved in the direction of arrow A downwards with the lid parts or lids are in turn deposited on their Ab ⁇ placement points.
- the rods 10 are then moved backwards below the depositing positions in the direction of the arrow B, contrary to the arrow C, in order subsequently to perform the described process again.
- FIG. 2 shows stacked metal lid blanks 20 as an example of lid parts as they are present in the stack 11.
- These blanks 20 are for example round metal discs of eg 11 cm diameter. Of course, other basic shapes, such as square or rectangular discs and other diameters are readily possible.
- the blanks 20 are already preformed in a processing machine, not shown, at its edge as shown in Figure 2. In the figure 2 and the following figures In each case only one sector of the entire disk is darge ⁇ to simplify the drawings.
- FIG. 1 an opening is punched into the pane by punching with upper and lower tools, as can be seen in FIG. 2, in which the edge of the opening is denoted by 21 and the punched-out circular disk is denoted by 27
- This slice reaches the container 12 of FIG. 1 as waste.
- the stamping processing station 3 is driven by a drive 15, as is the case with the other stations.
- the edge 21 is pulled downwards, as a result of which the course 22 of the edge shown in FIG. 3 is achieved.
- the ring-shaped lid blanks 20 now pass into the processing station 5, in which a film 25 is placed over the opening of the lid 20 and fastened there by heat sealing, which can be seen in FIGS. 5 and 6.
- the metal foil 25 is provided in a known manner on its underside with a plastic layer.
- the required film blank 25 is usually punched out of a broad film web in the station 5 and placed over the central recess of the annular disk, and the film is pressed by the hot-sealing station under heat at the edge of the round recess of the part 20 under the action of heat. so that the film 25 is tightly connected to the metal lid 20 by melting and subsequent cooling of the plastic sheet.
- a cooling processing station 7 can be provided for cooling.
- the film 25 is provided with a stamping 24 (FIG. 7), and the edge 22 is further crimped to the finished edge 23.
- FIG. 9 shows a diagrammatic view of a conveyor device 30 according to a preferred embodiment.
- This conveying device 30 is designed to convey lid-shaped objects of the type described.
- the conveyor device in turn serves for cyclically conveying the lid parts or lids to the individual processing stations, which are preferably the previously described processing stations for lid production and for the test station 9.
- FIG. 9 also shows that a further conveying device 30 'is arranged next to the conveying device 30. This can be driven by the same drive 33, 37 or have its own drive. Further counselvor ⁇ devices could be provided to increase the total number of funded lid parts or lids.
- the cover parts or covers can be conveyed between the stations at high speeds of, for example, 200 objects per minute and with reproducible partial steps. It also gives a flexible concept for a large format range of objects or covers, which can range for round covers, for example, from a diameter of 50 to 200 mm and also various rectangular formats, for example for the common
- the conveyor device is also designed as a compact module for single-lane or multi-lane design as shown.
- the conveying device has two toothed belts 31 and 32, which in particular lie with their surfaces in the same planes, that is to say run coplanarly, and which at the beginning and at the end of the conveying device via Um ⁇ guide rollers 34, 36 are guided, so that there is an endless belt drive in the necessary for the number ofities ⁇ stations length.
- the stepwise toothed belt movement synchronized with the processing stations is acted upon by a stepping motor or servomotor which drives the toothed belts by toothed rollers, as can be seen in the figure with the motor 33 and the drive shaft 38.
- further conveying devices such as the conveying device 30 '
- their toothed belts can be driven by the same motor via further drive axes or have their own motor drive.
- the motor 33 is controlled by a control 37 for making the stepwise forward movement of the toothed belts, which control 37 is either an entire control of the lid making device which also controls the processing stations and the station 9, or which control 37 is a controller is only for the conveying device, which communicates with a higher-level control for the Deckelherstel ⁇ treatment device.
- the motor 33 and the further drive components for the toothed belts are arranged on a machine frame 35, which is indicated in the figure only by the feet 35.
- toothed belt drivers are fixed, which are generally designated 40 in Figure 9, wherein the opposing drivers of the toothed belts 31 and 32 form a receptacle for the respective object.
- this amount of movement along the conveying path formed by the drivers 40 and in the direction of the arrow C shown are moved from the input side of the conveying device, which is located on the motor side, to the output side at the deflection roller 36.
- a cover 50 is provided in each case above the toothed belt and via the drivers 40, which covers the toothed belt and a part of the driver, which will be explained in more detail below.
- this cover 50 in each case has a recess 52, which allows removal of the objects from the carriers 40 so that the object can be lifted off the carriers and processed in the station and subsequently returned to the carrier.
- no recesses 52 are provided between the stations, so that there the lifting of the objects is blocked by the carriers through the cover 50.
- the drivers can also be designed magnetically, which likewise can prevent lifting of the objects during the conveying step if the object consists at least partially of a magnetically-stable material.
- the spacing of the toothed belts 31 and 32 is adjustable relative to one another, whereby the distance of the mutually opposite drivers 40 of the two toothed belts can be adjusted in order to be able to adapt the conveyor to different object sizes.
- transverse connections 58 may be provided in the conveying device, which allow a simple adjustment of the spacing of the toothed belts from one another.
- the drive shaft 38 is designed to allow this distance setting. The distances between the drivers 40 on the respective toothed belt are given by the pitch of the toothed belt and the Mitauerbefest Trent.
- This distance can be changed to adapt to the object size preferably in such a way that the toothed belts are exchanged for a set of other toothed belts with carriers 40 fixed at a different distance from each other.
- the toothed belt can be adjusted to each other by adjusting the distance, and by exchanging the toothed belts with differently spaced drivers, the desired large receiving area for objects can be created.
- a conversion to different sizes objects for all drivers at the same time in a simple and quick way.
- the described production steps for the tear-open lids and the corresponding conveying devices and workstations are to be understood as preferred examples only and serve as an aid to understanding the following described leak test of tear-open tops according to the present invention. Of course, this can also be carried out in the case of tear-open lids, which, unlike the illustrated embodiment, have been produced and must be tested.
- the test device according to the present invention can also be used in other devices for the production of tear-open covers.
- FIG. 10 shows, together with the further FIGS. 11, 12 and 13, a testing device 9 which can form the testing station 9 of FIG. 1 or in which linear conveying devices 30 or 30 'can each be provided as a test station.
- FIGS. 10 and 11 show the procedure for the normal pressure test, in which the tightness of the heat sealing seam for the film or leaks of the film itself is tested. Lids determined as leaking can be discharged into the reject container 17 via the mentioned chute.
- the device 9 is arranged on a frame 60, which may be the machine frame of the conveyor for the lids or a separate frame.
- the lower part 42 of a lid receptacle 42, 45 is attached to this frame, this lower part being vertically movable in its vertical position, as indicated by the arrow D in the figures and by means of the columns 41.
- the lower part 42 of the lid receptacle is in its bottom dead center position, so that a cover 20 can be introduced into the test device by means of the conveying device.
- This is indicated only by the two arrows indicated by 30, which is intended to represent that the cover 20 is conveyed by the conveying device 30 into the testing device or testing station 9 is introduced.
- it could also be a conveying device according to FIG. 1 or another conveying device.
- the cover 20 then stands still for a predetermined time in the testing device in the conveying direction or is not transported further, so that the leakproofness test can be carried out during this predetermined time.
- the lid 20 is airtightly received in the lid receptacle 42 and 45, in the example shown in that the lower part 42 in the direction of the arrow D moves up and lift the lid 20 of the conveyor and fixes him in the ceiling lau ,
- the corresponding position is shown, in which the lower part 42 is driven up and the cover in the lid receptacle 42, 45 holds sealed against the outside.
- at least one seal 46 is provided above the cover in the cover receptacle 45, which seal is effective at the edge of the top of the cover.
- On the underside of the lid or in the lower part 42 eben ⁇ if at least one seal is provided, which aller ⁇ dings not shown in the figures.
- a pressure space 43 is provided, which thus comes to rest on the underside of the lid, in which compressed air (or possibly another gas) can be introduced via a compressed air connection 44.
- a measuring space is provided which is in communication with a pressure sensor 55. If, therefore, a test pressure is applied in the pressure chamber 43, for example a test pressure of 1 bar, a pressure rise will be measurable by the sensor 55 in the measuring space above the cover 20 in the event of a leaking tear film or sealed seam. If there is no leakage, then no increase in pressure is measurable (within the scope of measurement accuracy) and the lid can be approved.
- a support for the tear-open foil is preferably provided in the measuring space so that it can not be lifted upwards, or at most only partially, under the effect of the test pressure.
- the measurement is only carried out when a corresponding slight curvature of the tear-open lid has been completed so that the actual leakage and not the displacement of air in the measuring space is measured by the curvature of the lid.
- the measuring chamber part above the tear-open film is at least partially, but preferably completely, provided with a porous, air-permeable material which forms a rigid support for the tear-open film, so that it can not deform under the influence of the test pressure.
- the measuring space is defined by a thin plate 47 of porous material, the channel 48 in the stamper 54 and the channel and the space 49 in front of the sensor 55 and optionally formed the small completed channel piece 53.
- the volume of the sub-volumes forming the measuring space should be small in order to bring about a well-measurable increase in pressure in the measuring chamber, even through small leaks in the lid or the heat-sealing. This is likewise achieved by means of the material 47 which largely fulfills the measuring space, which, in addition to the support function for the tear-off film, also keeps the volume of the measuring space relatively low.
- the preferred material 47 for forming the support in the measuring space is a porous composite material which is inherently rigid and thus does not permit any deflection of the tear-open film and, on the other hand, has a very high air permeability.
- porous composite material which is inherently rigid and thus does not permit any deflection of the tear-open film and, on the other hand, has a very high air permeability.
- Such materials are known and are, for example, porous, air-permeable ceramic materials or plastic materials.
- METAPOR ® is known as a composite of aluminum granulate and epoxy resin, which is permeable to air over the entire surface.
- This composite material is manufactured and sold by the company Portec AG, CH-8404 Winterthur, Switzerland, and is available in suitable board thickness for the present application.
- the support can at best be effected by a perforated grid, a rigid network or a similar component, wherein behind this a partial chamber of the measuring chamber is provided for air collection of the leakage air.
- the measuring space with the material 47 forming the support can be moved upward by means of the punch 54 shown in black, which will be explained below. This is meanwhile for the described
- the measuring space könn ⁇ te also be formed directly and without the punch 54 in the upper Dekkelaufnähme 45.
- the channel 48 would also be formed in the cover receptacle 45 and not in the plunger 54.
- the receptacle 45 is pressed down by springs 58, for example, whereby stops 59 hold the receptacle in a device-fixed part 62.
- the resilient load results in a good tightness of the cover receptacle when the lower part 42 moves upwards and in its top dead center presses the cover receptacle 45 slightly upwards against the spring 68, so that a defined contact pressure between the lower part and upper lid receptacle 42 and 45, respectively.
- the measuring space is preferably open so long (through the channel 53, which leads to the outside) until the upper lid holder 45 has been pressed slightly upwards, which closes the channel 53 and thus the measuring space. In this way, a Restvo ⁇ lumen compression in the measuring space is prevented and this is only closed when the lid has reached its measuring position.
- the test pressure in the test area 43 is reached shortly before reaching the top dead center of the ceiling receptacle 42 or shortly after reaching the top dead center. point switched. Thereafter, the pressure measurement during the downtime at top dead center is performed.
- the test pressure in the chamber 43 is removed and the cover 20 is lowered by driving down the lid receptacle 42 again on the conveyor device 30 and transported on.
- the measured value of the pressure rise associated with the cover now serves to determine the lid as a leaking lid or as a reusable, tight lid. Accordingly, the lid can be ejected at the end of the conveying device (or even before) and allocated to the scrap or used as a correctly produced lid.
- the cover is released from the test station 9, it is also possible to proceed in such a way that initially only the pressure supply into the test chamber 43 is interrupted and the test chamber 43 is automatically emptied when the lower cover receptacle 42 is lowered, whereby the compressed test air under escapes the lid.
- the test device 9 has now again reached the position of FIG. 10 and is ready to receive a cover for the purpose of checking the tightness again. In normal operation, there is thus always a reciprocating movement between the two dead center positions of FIG. 10 and FIG. 11 and the corresponding tightness measurement.
- the movements can be effected by drives, not shown, which are known in the art. In particular, the movements can be pneumatically controlled.
- the aforementioned controller 37 can thereby effect the sequence of the processes and the acceptance of the measurement signals of the sensor 55.
- Figures 12 and 13 show a preferred further embodiment, wherein in the same test station in which the leakage measurement has been carried out and a burst measurement is possible.
- a burst measurement the tear-open film is subjected to a substantially higher pressure than the usual test pressure and it is determined whether the sealed seam has sufficient strength.
- Such a burst measurement is carried out only occasionally during the production of the covers in order to detect any deviations of the sealing parameters which lead to an insufficient sealing of the tear-off film. If this is determined during a production batch, then all corresponding tear-off covers must be disposed of as rejects. According to the state of the art, covers made from this are taken from the production line and tested in a separate test device.
- the bursting test now takes place in the production line itself in the same device, which has also carried out the leakage test.
- FIG. 12 this again shows how a cover 20 is in the position for transfer to the test device, in which case the lower cover assembly is again shown. would be shown in its bottom dead center.
- the same reference numerals designate the same elements as they have already been described.
- the punch 54 is moved upwards, which is preferably done by compressed air, which moves over the terminal 57, the holder 56 for the punch 54 upwards.
- a bursting pressure of, for example, 2.5 bar which pressure can of course be predetermined in accordance with the predetermined strength of the sealing seam. If the sealing seam is strong enough to withstand this bulging, then the sensor 55 only detects the increase in pressure resulting from the displacement of the air in the chamber 47 "due to the bulge, whereas if the sealing seam is too weak, so that it bursts, the higher bursting pressure prevails in the measuring space The corresponding lid, as well as presumably the associated lid charge, can then be regarded as rejects.) By carrying out the bursting test in the production line, a substantial simplification of the bursting test results
- Tear-off covers 20 are thus integrated into the tear-open lids in a linear conveyor Test device for tightness of the seal and Fo ⁇ lie tested.
- the cover is clamped airtight between a test pressure chamber and a measuring space, and the cover is subjected to the test pressure from its underside.
- the lid is acted upon by an air-permeable support in the measuring space and the air pressure increase caused by a possible leak in the measuring room is detected and evaluated by a sensor.
- a burst test can also be carried out in the same test device
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0518227-1A BRPI0518227A (pt) | 2004-10-19 | 2005-10-12 | processo e dispositivo para teste de estanqueidade de tampas de rasgar |
US11/577,387 US7810377B2 (en) | 2004-10-19 | 2005-10-12 | Method and device for testing the sealing tightness of tear-off lids |
EP05789282A EP1802955A1 (de) | 2004-10-19 | 2005-10-12 | Verfahren und vorrichtung zur dichtigkeitsprüfung von aufreissdeckeln |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1723/04 | 2004-10-19 | ||
CH01723/04A CH712127B1 (de) | 2004-10-19 | 2004-10-19 | Verfahren und Vorrichtung zur Dichtigkeitsprüfung von Aufreissdeckeln. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006042426A1 true WO2006042426A1 (de) | 2006-04-27 |
Family
ID=35466093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2005/000597 WO2006042426A1 (de) | 2004-10-19 | 2005-10-12 | Verfahren und vorrichtung zur dichtigkeitsprüfung von aufreissdeckeln |
Country Status (6)
Country | Link |
---|---|
US (1) | US7810377B2 (de) |
EP (1) | EP1802955A1 (de) |
CN (1) | CN101044384A (de) |
BR (1) | BRPI0518227A (de) |
CH (1) | CH712127B1 (de) |
WO (1) | WO2006042426A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2040512A2 (de) | 2007-09-21 | 2009-03-25 | Soudronic AG | Vorrichtung und Verfahren zum induktiven Erwärmen eines elektrisch leitenden Werkstücks |
WO2011127613A1 (de) | 2010-04-13 | 2011-10-20 | Soudronic Ag | Anordnung zur bildung einer bandschlaufe und verfahren und vorrichtung zur herstellung von aufreissdeckeln |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9151688B2 (en) | 2012-01-31 | 2015-10-06 | Matthew D. Steele | Apparatus and method for determining package integrity for porous and non-porous packages |
US10078029B2 (en) * | 2015-08-14 | 2018-09-18 | R.J. Reynolds Tobacco Company | System for testing an article wrapped with an overwrap and associated method |
CN106500930B (zh) * | 2016-12-25 | 2019-01-29 | 重庆德运模具制造有限公司 | 多孔零件的气密、沉水混合试验设备 |
CN106706233B (zh) * | 2016-12-25 | 2023-03-31 | 重庆完镁镁制品有限公司 | 零件上多个盲孔的逐孔气密性检验工装 |
CN111024325A (zh) * | 2019-12-14 | 2020-04-17 | 河南飞龙(芜湖)汽车零部件有限公司 | 一种汽车电子水泵生产用后盖气密性检测装置 |
Citations (3)
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US2861451A (en) * | 1954-11-29 | 1958-11-25 | Sheffield Corp | Fluid leakage gauging device |
US3712112A (en) * | 1970-05-29 | 1973-01-23 | Alusuisse | Device for the testing of seams of foil or sheet sealed containers |
JPS59147234A (ja) * | 1983-02-14 | 1984-08-23 | Kishimoto Akira | 漏洩検査装置 |
Family Cites Families (11)
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US2696107A (en) * | 1950-10-13 | 1954-12-07 | Continental Can Co | Testing apparatus for detecting and ejecting clipped can ends |
US3499314A (en) * | 1968-02-12 | 1970-03-10 | Borden Co | Apparatus for testing covers |
US3875789A (en) * | 1974-03-26 | 1975-04-08 | American Can Co | Apparatus for testing end closures |
US3875790A (en) * | 1974-03-26 | 1975-04-08 | American Can Co | Method and apparatus for testing end closures |
US3954003A (en) * | 1975-06-20 | 1976-05-04 | American Can Company | Apparatus for testing end closures |
DE2533830A1 (de) * | 1975-07-29 | 1977-02-10 | Leybold Heraeus Gmbh & Co Kg | Einrichtung zur lecksuche an prueflingen mit leicht verformbaren wandungen |
JPS5863830A (ja) * | 1981-10-12 | 1983-04-15 | Daiwa Can Co Ltd | 舌片つき金属蓋の高速漏洩検査法 |
US4495797A (en) * | 1983-06-27 | 1985-01-29 | Reynolds Metals Company | Can end tester |
US5042289A (en) * | 1990-08-17 | 1991-08-27 | Reynolds Metals Company | Container end test system |
US5668307A (en) * | 1996-05-07 | 1997-09-16 | Wade; James H. | Apparatus for testing can ends for leaks |
US6014891A (en) * | 1998-05-08 | 2000-01-18 | Conal Engineering Inc. | On-line leak tested and container ends |
-
2004
- 2004-10-19 CH CH01723/04A patent/CH712127B1/de not_active IP Right Cessation
-
2005
- 2005-10-12 US US11/577,387 patent/US7810377B2/en not_active Expired - Fee Related
- 2005-10-12 CN CNA2005800358716A patent/CN101044384A/zh active Pending
- 2005-10-12 WO PCT/CH2005/000597 patent/WO2006042426A1/de active Application Filing
- 2005-10-12 EP EP05789282A patent/EP1802955A1/de not_active Withdrawn
- 2005-10-12 BR BRPI0518227-1A patent/BRPI0518227A/pt not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2861451A (en) * | 1954-11-29 | 1958-11-25 | Sheffield Corp | Fluid leakage gauging device |
US3712112A (en) * | 1970-05-29 | 1973-01-23 | Alusuisse | Device for the testing of seams of foil or sheet sealed containers |
JPS59147234A (ja) * | 1983-02-14 | 1984-08-23 | Kishimoto Akira | 漏洩検査装置 |
Non-Patent Citations (2)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 008, no. 282 (P - 323) 22 December 1984 (1984-12-22) * |
See also references of EP1802955A1 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2040512A2 (de) | 2007-09-21 | 2009-03-25 | Soudronic AG | Vorrichtung und Verfahren zum induktiven Erwärmen eines elektrisch leitenden Werkstücks |
US9055616B2 (en) | 2007-09-21 | 2015-06-09 | Soudronic Ag | Method and apparatus for inductively heating an electrically conductive workpiece |
WO2011127613A1 (de) | 2010-04-13 | 2011-10-20 | Soudronic Ag | Anordnung zur bildung einer bandschlaufe und verfahren und vorrichtung zur herstellung von aufreissdeckeln |
CN102958625A (zh) * | 2010-04-13 | 2013-03-06 | 苏德罗尼克股份公司 | 用于构成带环的配置单元和用于制造易拉盖的方法和装置 |
Also Published As
Publication number | Publication date |
---|---|
CN101044384A (zh) | 2007-09-26 |
US20090044601A1 (en) | 2009-02-19 |
CH712127B1 (de) | 2017-08-15 |
EP1802955A1 (de) | 2007-07-04 |
BRPI0518227A (pt) | 2008-11-04 |
US7810377B2 (en) | 2010-10-12 |
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