EP2497334B1 - Dispositif de chauffage par induction de pièces avec refroidissement - Google Patents

Dispositif de chauffage par induction de pièces avec refroidissement Download PDF

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Publication number
EP2497334B1
EP2497334B1 EP10773067.3A EP10773067A EP2497334B1 EP 2497334 B1 EP2497334 B1 EP 2497334B1 EP 10773067 A EP10773067 A EP 10773067A EP 2497334 B1 EP2497334 B1 EP 2497334B1
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EP
European Patent Office
Prior art keywords
housing
fluid
line arrangement
workpiece receiving
receiving region
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Not-in-force
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EP10773067.3A
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German (de)
English (en)
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EP2497334A1 (fr
Inventor
Helmut K. Bauer
Martin U. Bauer
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Individual
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Individual
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/101—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces
    • H05B6/103—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces multiple metal pieces successively being moved close to the inductor
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/36—Coil arrangements
    • H05B6/42—Cooling of coils

Definitions

  • the invention relates to apparatus for inductive heating of workpieces with a workpiece receiving area and with an electrical line arrangement which generates an alternating magnetic field for inductive heating of arranged in the workpiece receiving area workpieces when connected to an AC power source.
  • the holding elements in spraying or painting plants must therefore be cleaned at regular intervals.
  • they are conventionally dismantled by an operator from the spraying or painting and then in a spatially separate from the plant workshop of a mechanical or chemical cleaning or cleaning by burning the paint or plastic layer by means of a gas burner subjected.
  • the object of the invention is to provide a device for inductive heating of workpieces, in which the entry of heat from an inductively heated workpiece in the line arrangement is low or is prevented.
  • a surrounding the electrical line assembly housing is provided with a housing to the workpiece receiving area final housing wall and a flow path formed in the housing for fluid, which between the housing to the workpiece receiving area final Housing wall and the electrical line arrangement is guided to dissipate by means of a fluid flow flowing in the housing, the heat introduced by a heated workpiece in the workpiece receiving area in the housing.
  • the flow path for fluid is designed as an air flow path.
  • air can be used as a cooling medium, so that no complicated infrastructure is required for the use of the device in an industrial manufacturing plant.
  • fluid flowing into the flow path flows along the line arrangement.
  • the resulting in the line arrangement ohmic heat can be dissipated, so that can optimize the operating temperature for the line arrangement.
  • a fluid chamber connected to the fluid flow path via at least one opening is formed in the housing. In this way, the fluid can be driven by dynamic pressure through the flow path in the housing.
  • the at least one opening is formed in a bottom part or a cover part of the housing recess.
  • the flow path for fluid can open into the open via a depression in a bottom part or a ceiling part of the building.
  • the mouth to the outside for the flow path for fluid can also be formed as an opening, in particular as a bore in a bottom or a cover part of the housing. In this way, the flow paths for Fluid in the housing of the device can be provided with low-cost manufacturing processes.
  • the workpiece receiving area may be designed as an opening formed in the housing, which is surrounded by an electrical line arrangement in the form of a cylindrical coil.
  • an inductive heating device is provided which is optimized for inductive heating of tubular workpieces.
  • the cylindrical coil is preferably positioned in a fluid channel with an annular cross-section surrounding the workpiece receiving region.
  • the wall of the fluid channel facing the workpiece receiving area can be designed with a hollow cylinder made of temperature-resistant plastic. This hollow cylinder closes the housing to the workpiece receiving area. It is advantageous to provide a hollow cylinder for the wall of the fluid channel facing away from the workpiece receiving area, which consists of temperature-resistant plastic.
  • the magnetic flux concentrating elements may be made of ferromagnetic composite materials, for example.
  • the pointing to the workpiece receiving area side of the line assembly is located on an adhesive film.
  • This adhesive film is designed as a two-sided adhesive film.
  • the line arrangement stabilizing support elements are provided on the opposite side of the line of the adhesive film. These support elements may, for example as strings or rods of Perbunan ® or Teflon ®.
  • the device for inductive heating of workpieces can also be designed with a slot-shaped workpiece receiving area.
  • the conduit assembly comprises a coil having strands of wire extending parallel in a longitudinal direction in two opposing portions along the slot-shaped workpiece receiving area.
  • the flow path for fluid is guided between a plate of temperature-resistant insulating material closing the housing to the workpiece receiving area and a further plate of temperature-resistant insulating material, which bears against the line strands of the line arrangement extending in parallel longitudinally along the slot-shaped workpiece receiving area.
  • the flow path for fluid can open into openings on the cover part of the housing.
  • the respective plates are preferably made of heat-resistant plastic or borosilicate.
  • the line arrangement comprises a coil with wire strands which extend in the longitudinal direction parallel to two opposing areas along the flat workpiece receiving area.
  • the flow path for fluid is favorably guided between a plate of temperature-resistant insulating material closing the housing to the workpiece receiving area and a plate of temperature-resistant insulating material positioned between the plate closing the housing to the workpiece receiving area and the line arrangement.
  • the overheating of the line arrangement can be monitored and avoided.
  • a controllable fan may be provided as means for adjusting the fluid flow which cools the line arrangement. In particular, this makes it possible to vary the flow velocity of the fluid flow which cools the line arrangement.
  • a control loop may be provided which controls the means for adjusting a fluid flow which cools the line arrangement as a function of a detected temperature of the line arrangement.
  • a pyrometric sensor is suitable for the detection of the temperature.
  • the alternating current guided through the line arrangement can then be regulated as a function of a detected workpiece temperature. In this way, a desired heating temperature for the workpieces in the workpiece receiving area of the device can be achieved.
  • the device for inductive heating of workpieces can be used in particular for decoating or paint stripping of coated, metallic workpieces, in particular for decoating or paint stripping of holding elements for receiving objects, by means of which objects are moved through a spraying or painting installation.
  • the device 1 shown for the inductive heating of workpieces contains a line arrangement 4 with an induction coil 5.
  • the induction coil 5 has a multiplicity of turns of coil wire. For operation at a high exciter frequency of the coil wire is preferably formed as Hochfrequenzlitze.
  • the induction coil 5 is connected to an AC power source 3 connected.
  • the device 1 for inductive heating of workpieces has a workpiece receiving area 7 Fig. 1 an electrically conductive workpiece 9 is shown, which is located in the workpiece receiving area 7.
  • a high-frequency magnetic alternating field B with flux lines 6 in the frequency range between 10 kHz and 100 kHz can be generated in the workpiece receiving area 7.
  • the workpiece 9 positioned in the workpiece receiving portion 9 induce induction currents, which heat the workpiece 9 to a temperature in the order of 250 ° C.
  • the induction coil 5 is applied with electrical power in the range of 10 to 30 kW.
  • the induction coil 5 is located in a housing 11 which surrounds the induction coil 5.
  • the housing 11 is closed with a housing wall 12 to the workpiece receiving area 7 out.
  • a fan 17 By means of the blower 17, cooling air 18 can be sucked into the housing 11.
  • a first flow path 19 for cooling air and a second flow path 20 is formed.
  • the flow path 19 for cooling air opens into an outlet opening 21 in the wall of the housing 11.
  • the flow path 20 for cooling air is guided between the housing wall 12 terminating the housing 11 to the workpiece receiving area 7 and the line arrangement 4 with the induction coil 5.
  • the flow path 20 for cooling air passes out of the housing 11 through an outlet opening 22.
  • the induction coil 5 is cooled.
  • the cooling air in the flow path 20 carries heat from the housing 11, which is introduced into the housing 11 from an inductively heated workpiece 9, which is located in the workpiece receiving area 7.
  • the heating of the induction coil 5 arranged in the housing 11 can be minimized via the cooling air flowing through the flow paths 19, 20.
  • the induction coil 5 can be operated at a favorable working temperature in the range between 40 ° C and 80 ° C. Without a cooling air flow, the operating temperature of the induction coil 5, however, would be more than 150 ° C. At temperatures of 150 ° C but are common insulation materials, especially insulating materials with organic ingredients, no longer temperature resistant.
  • the device 1 comprises a control unit 24.
  • the control unit 24 controls the AC power source 3.
  • a flow switch 23 is assigned.
  • the flow monitor 23 is located in the housing 11 and is there flown by the sucked by the blower 17 cooling air. The flow monitor 23 detects the incoming cooling air. If the flow switch 23 detects no air flow, the controller 24 causes the switching off of the AC power source 3, so as to protect the induction coil 5 on the housing 11 against overheating.
  • a control device 25 for regulating the temperature in the induction coil 5 is provided in the device 1 for inductively heating workpieces. Furthermore, the device 1 contains a control device 31, by means of which the temperature of a workpiece arranged in the workpiece holder 7 can be regulated. The control devices 25,31 are each connected to the control unit 24.
  • the control device 25 is associated with a temperature sensor 27.
  • the temperature sensor 27 detects the operating temperature of the induction coil 5. Further, the control device 25 is connected to the blower 17 for cooling air.
  • the control device 25 forms with the temperature sensor 27 and the blower 17 for cooling air a control circuit 28. By means of the control circuit 28, the regulation of the blower 17, the operating temperature of the induction coil 5 can be kept at a favorable value.
  • the controller 31 is connected to a pyrometric temperature sensor 32 and the AC power source 3.
  • the temperature sensor 32 detects the temperature of the arranged in the workpiece holder 7 workpiece 9 by means of a Pyrometerstrahls.
  • the control device 31 forms a control circuit 34 with the temperature sensor 32 and the AC power source 3.
  • the control circuit 34 regulates the power of the AC power source 3 such that the temperature of a workpiece 9 arranged in the workpiece receiving area 7 assumes a desired desired value.
  • the Fig. 2 shows a housing 211 with induction coil of a second device for inductive heating of workpieces.
  • This device is designed for inductive heating of tubular workpieces 209.
  • the housing 211 has a cylindrical workpiece holder 207.
  • a plug connection 214 is provided for the power supply of the induction coil arranged in the housing.
  • a blower 217 is connected to the housing 211.
  • the induction coil in the housing 211 is formed as a cylindrical coil. It generates a magnetic alternating field B corresponding to the flux lines 206.
  • the Fig. 3 and the Fig. 4 show a vertical and a horizontal section of the housing 211.
  • the housing 211 has a bottom part 251 and a cover part 253, each made of aluminum. In the bottom part 251 and the lid part 253, there is a respective circular opening 255,257.
  • the induction coil designed as a cylindrical coil 205 has windings superimposed in the manner of a helical winding, which windings consist of high-frequency stranded wire as a coil wire.
  • the solenoid 205 in the housing 211 is positioned between a first hollow cylinder 259 and a second hollow cylinder 261.
  • the hollow cylinder 259 is fixed by means of screws 263 on the bottom part 251 of the housing 211.
  • the hollow cylinder 261 is received in an annular groove 265, 267 on the bottom part 251 and on the cover part 253 of the housing 211.
  • the hollow cylinders 259,261 are made of temperature-resistant Plastic.
  • the hollow cylinder 259 closes the housing 211 toward the workpiece receiving area 7.
  • the hollow cylinders 259, 261 form a space 260 with an annular cross section, which surrounds the workpiece holder 207.
  • the solenoid 205 is received in this space 260.
  • the cylindrical coil 205 is located with its side facing the workpiece receiving portion 207 on an adhesive film 269.
  • the adhesive film 269 is stabilized by means of cord or rod-shaped support elements 271 made of Perbunan ® or Teflon ® .
  • the magnetic flux concentrating elements 273 are arranged from ferromagnetic composite materials.
  • the sucked by the blower 217 in the housing 211 cooling air flow first passes into an air chamber 275. This creates a back pressure. This dynamic pressure drives the air from the air chamber 275 through the grooves 277 formed in a star shape around the circular opening 255 on the bottom part 251. Via the grooves 277, the cooling air passes through a flow path 276 into the intermediate space 260 between the hollow cylinders 259, 261, in which the cylindrical coil 205 located.
  • the space 260 is an air flow passage.
  • the cooling air flows on both sides of the cylindrical coil 205 through the intermediate space 260. It then passes through grooves 279 and outlet openings 280 formed around the circular opening 257 in the cover part 253, pointing in the direction of the axis of the cylindrical workpiece receiving area 207.
  • the cooling air exiting via the outlet opening 280 sweeps along the surface of the workpiece 209. This can be dissipated via the cooling air flow toxic gases or vapors when heating the workpiece 209 occur when this is coated with a paint or plastic layer.
  • the Fig. 5 shows the housing 511 of a third device for inductive heating of workpieces.
  • the third apparatus is also designed for heating tubular workpieces.
  • the third device differs from the second device only in that the cooling air flow 576 guided on both sides of the cylindrical coil 505 is guided to the outside via outlet openings 580 on the cover part 553 of the housing 511. This measure ensures that a workpiece inductively heated in the device is not cooled by means of the exiting from the housing 511 cooling air flow 576.
  • the Fig. 6 shows an induction coil housing 311 of a fourth apparatus for inductive heating of workpieces 309.
  • the housing 311 has a slot-shaped workpiece holder 307.
  • the housing 311 includes a connector terminal 314 for the induction coil in the housing.
  • a blower 317 is connected to the housing 311.
  • the induction coil in the housing 311 has the geometry of a folded around two axis sections to a handle body in the workpiece receiving portion 307 flat rectangular coil with spiral turns. It generates an alternating field B corresponding to the flow lines 306.
  • Fig. 7 and 8th is a vertical and a horizontal cross-section of the housing 306 can be seen.
  • the induction coil 305 includes strands of wire 304 that extend in parallel longitudinal directions in two opposing areas 381, 383 along the slot-shaped workpiece receiving area 307.
  • the housing 311 has a bottom portion 351 and two side portions 352, 353 as well as two lid portions 354, 355, e.g. may consist of aluminum.
  • the induction coil 305 is held in the housing 311 with support portions 386. Between the induction coil 306 and the support portions 386 there are provided elements 387, 388, 389 which concentrate the magnetic flux.
  • the winding sections of the induction coil 305 pointing to the end-side parts 357, 355 and the cover parts 354, 355 also have elements 390 for the flux concentration.
  • the magnetic flux concentrating elements 387, 388, 390 amplify the magnetic field generated by the induction coil 305 in the workpiece receiving area 307.
  • elements 387, 388, 398 reduce the stray magnetic field at the bottom part 351, the side parts 352, 353, 355, 355 and the cover parts 354, 355 of the housing 306 so that the housing during operation of the induction coil 305 does not or only slightly heats up when the housing is made of metal.
  • the housing 311 is closed off with plates 391, 393, 393 made of heat-resistant insulating material.
  • the plates 391,392,393 corresponding plates 394,395,396 are assigned to which the induction coil 305 is applied.
  • the plates 391.394 and 393.396 are each separated by an air gap 397.398.
  • the air gap 397.398 is an air flow channel.
  • the sucked by the blower 317 in the housing 311 cooling air flow enters the interior 375 of the housing, which acts as an air chamber. This creates a dynamic pressure.
  • the dynamic pressure drives the cooling air along flow paths 320.321 through the air gaps 397, 398 between the plates 391 and 394 or 392 and 395 to outlet openings 399 in the cover parts 354, 355 of the housing 311.
  • the housing 311 has openings 302 in the side parts 352, 353 through which the cooling air with flow paths 322, 323 can also flow into the open air.
  • the workpiece 309 In order to inductively heat the workpiece 309, for example for the purpose of stripping or decoating, it is moved through the slit-shaped workpiece area 307 in a continuous process.
  • Fig. 9 shows a housing 411 with induction coil of a fifth device for inductive heating of workpieces.
  • a plug connection 414 for the induction coil On the housing 411 there is a plug connection 414 for the induction coil.
  • a blower 417 To the housing 411, a blower 417 is connected.
  • the induction coil in the housing 411 has the geometry of an elongate, flat rectangular coil. It generates an alternating field B corresponding to the flux lines 406 in the workpiece receiving area 407.
  • the Fig. 10 and Fig. 11 show the housing 411 in a vertical cross section and a vertical longitudinal section.
  • the Fig. 11 is a longitudinal section of the housing 411.
  • In Fig. 12 is a section of the housing along the line XII-XII off Fig. 11 shown.
  • the induction coil 405 in the housing 411 has the shape of a rectangular flat coil, the line strands 404 are placed in the manner of a helical winding around a support plate 403 of temperature-resistant insulating material.
  • the line strands 404 of the induction coil 405 extend on both sides of the carrier plate 403 in opposite regions 481, 488 parallel to the planar workpiece receiving region 407 in the longitudinal direction.
  • On the support plate 403 are elements 451, 453 which concentrate the magnetic flux.
  • the support plate 403 with the elements 451, 453 is mounted on the wall of the housing 411.
  • the housing 411 has a first plate 459 of temperature-resistant insulating material and a second plate 461, which consists of temperature-resistant insulating material.
  • the first plate 459 is located with an air gap 463 above the induction coil 405.
  • passages 465 are formed for cooling air, which open via passage openings 412 in the support plate 403 in a slit-shaped flat space 467 between the first and the second plate 459,461.
  • the blown by the blower 417 in the housing 411 cooling air flow passes into the interior 475 of the housing, which in turn acts as an air chamber.
  • the resulting dynamic pressure causes a circulating around the induction coil 405 around cooling air flow with a flow path 420.
  • the cooling air is forced into the air gap 463, from where via the openings 465 for cooling air in the gap-shaped gap 467 between the first and the second plate 459,461 by a slotted opening 469 in the housing 411 passes into the open.
  • the invention relates to a device 1 for inductive heating of workpieces 9 with a workpiece receiving area 7 and with an electrical line assembly 5, which generates an alternating magnetic field for inductive heating of arranged in the workpiece receiving area 7 workpieces 9 when connected to an AC power source 3 ,
  • the device 1 has a housing 11 surrounding the electrical line arrangement 5.
  • the housing 11 has a housing wall 12 which closes the housing 11 to the workpiece receiving area 7.
  • a fluid flow path 20 is formed, which is guided between the housing wall 12 and the electrical line arrangement 5 which terminates the housing 11 to the workpiece receiving area 7. This can be done by means of in
  • the fluid flow 20 flowing through the housing 11 is dissipated by the heat introduced into the housing 11 by a heated workpiece 9 in the workpiece receiving area 7.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Induction Heating (AREA)

Claims (15)

  1. Dispositif (1) de chauffage par induction de pièces (9)
    comprenant une région de support de pièce (7, 207, 307, 407) et un agencement de conduites électriques (5, 205, 305, 405) qui, lors du raccordement à une source de courant alternatif (3), génère un champ magnétique alternatif (6, 206, 306, 406) pour le chauffage par induction de pièces (9, 209, 309) disposées dans la région de support de pièce (7, 207, 307, 407),
    caractérisé en ce
    qu'il est prévu un boîtier (11, 211, 311, 411, 511) entourant l'agencement de conduites électriques (5, 205, 305, 405, 505) avec une paroi de boîtier (12, 259, 391, 392, 461) terminant le boîtier (11, 211, 311, 411, 511) vers la région de support de pièce (7, 207, 307, 407) et une voie d'écoulement pour le fluide (20, 276, 321, 420, 576) réalisée dans le boîtier (11, 211, 311, 411), laquelle est guidée entre la paroi de boîtier (12, 259, 391 392, 461) terminant le boîtier (11, 211, 311, 411, 511) vers la région de support de pièce (7, 207, 307, 407) et l'agencement de conduites électriques (5, 205, 305, 405, 505), afin d'évacuer la chaleur introduite dans le boîtier (11, 211, 311, 411, 511) par une pièce chauffée dans la région de support de pièce (7, 207, 307, 407) au moyen d'un écoulement fluidique s'écoulant dans le boîtier (11, 211, 311, 411, 511).
  2. Dispositif selon la revendication 1, caractérisé en ce que la voie d'écoulement pour le fluide est réalisée sous forme de voie d'écoulement d'air (20, 276, 321, 420) et/ou en ce que du fluide s'écoulant dans la voie d'écoulement (276, 420) s'écoule le long de l'agencement de conduites (205, 405) et/ou en ce qu'une chambre de fluide (275) connectée par le biais d'au moins une ouverture (277) à la voie d'écoulement (276) pour le fluide est réalisée dans le boîtier (211), et/ou en ce que l'au moins une ouverture (277) est un renfoncement (272) réalisé dans une partie de fond (251) ou dans une partie de couvercle du boîtier (211) et/ou en ce que la voie d'écoulement (276) pour le fluide débouche à l'air libre par le biais d'un renfoncement (279) dans une partie de fond ou dans une partie de couvercle (253) du boîtier (211), et/ou en ce que la voie d'écoulement pour le fluide débouche à l'air libre par des ouvertures (397) dans une partie de fond ou dans une partie de couvercle (354, 355) du boîtier (311) et/ou en ce que la voie d'écoulement pour le fluide débouche à l'air libre par des ouvertures (302) dans une paroi latérale (352) du boîtier (311).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la région de support de pièce (207) est une ouverture réalisée dans le boîtier (211) et l'agencement de conduites électriques comprend une bobine cylindrique (205) entourant le support de pièce (207).
  4. Dispositif selon la revendication 3, caractérisé en ce que la bobine cylindrique (205) est positionnée dans un canal fluidique (260) de section transversale annulaire entourant la région de support de pièce (207).
  5. Dispositif selon la revendication 4, caractérisé en ce que la paroi du canal fluidique (260) tournée vers la région de support de pièce (207) est un cylindre creux (259) constitué de plastique résistant à la température, le cylindre creux (259) terminant le boîtier (211) vers la région de support de pièce (207), et/ou la paroi du canal fluidique (260) tournée à l'opposé de la région de support de pièce (207) est un cylindre creux (261) constitué de plastique résistant à la température, de préférence un ou plusieurs éléments (273) concentrant le flux magnétique étant disposés au niveau de la paroi extérieure du cylindre creux (261), lesquels se composent de préférence de matériaux composites ferromagnétiques.
  6. Dispositif selon l'une quelconque des revendications 3 à 5, caractérisé en ce que le côté de l'agencement de conduites (205) tourné vers la région de support de pièce (207) s'applique contre un film adhésif (269) de préférence double face, et les éléments de support (271) sont prévus du côté du film adhésif (269) opposé à l'agencement de conduites (205), lesquels stabilisent l'agencement de conduites, et sont réalisés de préférence en tant que cordons ou barres, qui se composent de préférence de Perbunan® ou de Teflon®.
  7. Dispositif selon la revendication 1 ou 2, caractérisé en ce qu'une région de support de pièce en forme de fente (307) est prévue, et l'agencement de conduites comprend une bobine (305) avec des sections de conduites (304) qui s'étendent parallèlement dans la direction longitudinale dans deux régions opposées l'une à l'autre (381, 383) le long de la région de support de pièce en forme de fente (307).
  8. Dispositif selon la revendication 7, caractérisé en ce que la voie d'écoulement (321) pour le fluide est guidée entre une plaque (391, 392) terminant le boîtier vers la région de support de pièce en matériau isolant résistant à la température et une plaque (394, 395) en matériau isolant résistant à la température, qui s'applique contre les sections de conduites (304) de la bobine (305) s'étendant parallèlement dans la direction longitudinale le long de la région de support de pièce en forme de fente (307).
  9. Dispositif selon la revendication 8, caractérisé en ce que la voie d'écoulement (321) pour le fluide débouche dans des ouvertures (399) sur la partie de couvercle du boîtier (311), et/ou en ce que la première plaque (391, 393) ou la deuxième plaque (394, 396) se compose de plastique résistant à la température ou de silicate de bore.
  10. Dispositif selon la revendication 1 ou 2, caractérisé en ce qu'une région de support de pièce plate (407) est prévue et l'agencement de conduites comprend une bobine (405) avec des sections de conduites (404) qui s'étendent dans deux régions opposées l'une à l'autre (481, 483) le long de la région de support de pièce plate (407) parallèlement les unes aux autres dans la direction longitudinale.
  11. Dispositif selon la revendication 10, caractérisé en ce que la voie d'écoulement (420) pour le fluide est guidée entre une plaque (461) en matériau isolant résistant à la température terminant le boîtier (411) vers la région de support de pièce (407) et une plaque (459) en matériau isolant résistant à la température, qui est positionnée entre la plaque (461) terminant le boîtier (411) vers la région de support de pièce (407) et l'agencement de conduites (405).
  12. Dispositif selon l'une quelconque des revendications 1 à 11, caractérisé en ce que des moyens (23) sont prévus pour le contrôle d'un écoulement fluidique (20) refroidissant l'agencement de conduites (5) et/ou en ce que les moyens pour le contrôle d'un écoulement fluidique (20) refroidissant l'agencement de conduites (5) comprennent un détecteur d'écoulement (23) et/ou en ce que des moyens (27) sont prévus pour le contrôle de la température de l'agencement de conduites (5) et/ou en ce que des moyens (25, 17) sont prévus pour ajuster un écoulement fluidique (19) refroidissant l'agencement de conduites (5).
  13. Dispositif selon la revendication 12, caractérisé en ce qu'en tant que moyens pour l'ajustement de l'écoulement fluidique (19) refroidissant l'agencement de conduites (5), en particulier pour l'ajustement de la vitesse d'écoulement de l'écoulement fluidique (19), il est prévu une soufflante commandable (17) avec un circuit de régulation (28) qui régule les moyens pour l'ajustement d'un écoulement fluidique (19) refroidissant l'agencement de conduites (5) en fonction d'une température détectée de l'agencement de conduites (5).
  14. Dispositif selon l'une quelconque des revendications 1 à 13, caractérisé en ce que des moyens (32) sont prévus pour détecter la température d'une pièce (9) dans le porte-pièce (7), les moyens pour la détection de la température d'une pièce dans le porte-pièce comprenant de préférence un capteur pyrométrique (32), et de préférence un circuit de régulation (34) étant prévu, lequel régule un courant alternatif passant à travers l'agencement de conduites (5) en fonction d'une température de la pièce détectée.
  15. Utilisation du dispositif selon l'une quelconque des revendications 1 à 14, pour le décapage ou le délaquage de pièces métalliques revêtues, en particulier pour le décapage ou le délaquage d'éléments de fixation (309) pour des objets provenant d'une installation de pulvérisation ou de peinture.
EP10773067.3A 2009-11-04 2010-10-29 Dispositif de chauffage par induction de pièces avec refroidissement Not-in-force EP2497334B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009046410A DE102009046410A1 (de) 2009-11-04 2009-11-04 Vorrichtung zum induktiven Heizen von Werkstücken mit Kühlung
PCT/EP2010/066446 WO2011054748A1 (fr) 2009-11-04 2010-10-29 Dispositif de chauffage par induction de pièces avec refroidissement

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EP2497334A1 EP2497334A1 (fr) 2012-09-12
EP2497334B1 true EP2497334B1 (fr) 2014-07-30

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Publication number Priority date Publication date Assignee Title
US11272584B2 (en) 2015-02-18 2022-03-08 Inductotherm Corp. Electric induction melting and holding furnaces for reactive metals and alloys

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3005893A1 (de) * 1980-02-16 1981-09-03 Peter 3002 Wedemark Fischer Stromerzeugungsanlage
JPS57109291A (en) * 1980-12-26 1982-07-07 Matsushita Electric Ind Co Ltd Induction heating cooking device
US5821504A (en) * 1990-06-04 1998-10-13 Nordson Corporation Induction heating system for 360° curing of can body coatings
US6412252B1 (en) * 1996-11-15 2002-07-02 Kaps-All Packaging Systems, Inc. Slotted induction heater
US5938965A (en) 1998-04-01 1999-08-17 Tocco, Inc. Inductor for removing paint from wire hooks
DE10015074C1 (de) * 2000-03-25 2001-08-16 Glimpel Emuge Werk Schrumpfgerät für Werkzeuge,insbesondere Hartmetallwerkzeuge
DE10157432B4 (de) * 2001-11-23 2013-06-13 Franz Haimer Maschinenbau Kg Induktionsspule für ein induktives Schrumpfgerät
US7119310B2 (en) * 2002-04-12 2006-10-10 Enercon Industries Corporation U-flow ventilated sealing head
DE10253106A1 (de) * 2002-11-13 2004-06-03 E. Zoller GmbH & Co. KG Einstell- und Messgeräte Schrumpfvorrichtung
DE102005056501A1 (de) * 2005-11-28 2007-05-31 Schott Ag Flaches Induktionskochsystem
DE202006009799U1 (de) * 2006-06-21 2007-10-25 Lupotron Gmbh Induktive Behandlungseinrichtung
JP2007242635A (ja) * 2007-06-11 2007-09-20 Ricoh Co Ltd 加熱装置及び画像形成装置

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WO2011054748A1 (fr) 2011-05-12
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