EP1446236A2 - Procede et dispositif de sechage et/ou reticulation d'un revetement d'une bande metallique contenant un solvant - Google Patents

Procede et dispositif de sechage et/ou reticulation d'un revetement d'une bande metallique contenant un solvant

Info

Publication number
EP1446236A2
EP1446236A2 EP02781203A EP02781203A EP1446236A2 EP 1446236 A2 EP1446236 A2 EP 1446236A2 EP 02781203 A EP02781203 A EP 02781203A EP 02781203 A EP02781203 A EP 02781203A EP 1446236 A2 EP1446236 A2 EP 1446236A2
Authority
EP
European Patent Office
Prior art keywords
metal strip
coating
drying
solvent
housing
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Withdrawn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
EP02781203A
Other languages
German (de)
English (en)
Inventor
Kersten Link
Andreas Dibon
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.)
Eisenmann Anlagenbau GmbH and Co KG
Original Assignee
Eisenmann Anlagenbau GmbH and Co KG
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 Eisenmann Anlagenbau GmbH and Co KG filed Critical Eisenmann Anlagenbau GmbH and Co KG
Publication of EP1446236A2 publication Critical patent/EP1446236A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • B05D3/0263—After-treatment with IR heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
    • F26B3/283—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun in combination with convection

Definitions

  • the invention relates to a method for drying and / or crosslinking a solvent-containing coating of a metal strip, in which the coated metal strip is passed through a drying device in which an energy form is applied to it, which converts to heat in the coating and / or the metal strip , and in the interior of which a gas is introduced, the temperature of which is above the condensation temperature of the solvent;
  • At least one source of an energy form which is arranged in the interior of the housing in the vicinity of the path of movement of the metal strip and which converts to heat in the coating and / or the metal strip;
  • Coated, especially lacquered metal strips are becoming increasingly important in a wide variety of industrial areas. They can be manufactured inexpensively, can be stored cheaply wound into coils, cut to size for the desired application if required, and further processed to the desired end product.
  • the heat required for drying and crosslinking is primarily generated in the metal strip with the aid of induction coils, which cause eddy currents in the metal strip. This then heats the coating from the inside to the outside by heat conduction. This has the advantage that the hottest areas of the coating are on the inside, so that the drying and crosslinking process progresses from the inside to the outside, whereby the escape of solvent is not hindered.
  • the disadvantage is that the metal strip itself must be heated, which is energetically unfavorable.
  • this method and device also have the disadvantage that the heat inside the coating has to propagate by heat conduction from one surface to which the heat is supplied to the opposite surface, which takes a certain amount of time.
  • the object of the present invention is to design a method or a device of the type mentioned at the outset in such a way that it achieves even shorter drying and / or crosslinking times and is more energy-efficient.
  • the energy form is infrared radiation.
  • infrared radiation has the advantage that the heat is generated by absorption of the infrared radiation directly in the coating, namely in its volume, that is, not only in areas close to the surface.
  • the infrared radiation is essentially reflected on the surface of the metal strip so that the metal strip is not directly heated; it remains if the metal strip is not prevented from being heated by thermal conduction from the coating. All of this contributes to the fact that the time required to dry and / or crosslink the coating is much shorter compared to the use of eddy currents caused by induction in the metal strip and that nevertheless considerable energy savings are made becomes.
  • the wavelength of the infrared radiation is preferably between approximately 0.8 ⁇ m and 1.5 ⁇ m. This is the wavelength range in which common solvents and common coatings have favorable absorption bands for electromagnetic radiation.
  • the exact wavelength of the radiation used is adapted to the absorption spectrum of the coating and solvent in such a way that the infrared radiation in the coating is absorbed as completely as possible.
  • the energy source is designed to emit infrared radiation.
  • the energy source is expediently designed to emit infrared radiation with a wavelength between approximately 0.8 ⁇ m and approximately 1.5 ⁇ m. Again, reference can be made to the above information on the advantages associated with the use of this wavelength range.
  • the housing comprises an outer jacket and an inner jacket, the energy source being arranged in a niche in the inner jacket.
  • the space between the outer jacket and the inner jacket can be used for insulation or cooling purposes.
  • the arrangement of the energy source in a niche of the inner jacket, i.e. ultimately in one Interruption of the space between the outer jacket and the inner jacket enables the formation of a continuous drying tunnel within the housing.
  • both sides of the metal strip are thus dried and / or cross-linked in a single pass through the drying device.
  • the drying device shown has a housing identified overall by the reference number 1, which has an inlet opening 2 on its lower end face in the drawing and an outlet opening 3 on its upper end face in the drawing.
  • An intermediate wall 4 within the housing 1 separates the interior thereof into a drying zone 5 adjacent to the inlet opening 2 and an evaporation zone 6 adjacent to the outlet opening 3.
  • the intermediate wall 4 has a passage opening 7.
  • the housing 1 comprises an outer jacket 10 and an inner jacket 11, which together delimit a space 12.
  • the intermediate space 12 is flowed through in a manner not shown in the drawing of cooling air which is supplied in the vicinity of the inlet opening 2 and is removed in the vicinity of the intermediate wall 4.
  • the inner jacket 11 forms a kind of "tunnel" through which the metal strip 8 to be dried moves.
  • infrared radiators 14 are used on both sides of the path of movement of the metal strip.
  • the infrared emitters 14 are water-cooled; the necessary water pipes are not shown in the drawing for reasons of clarity.
  • the interior of the housing 1 becomes different
  • Tapping points 15 the mixture located there
  • Air and solvents are sucked off via a manifold 16 and fed to a thermal afterburning device, not shown in the drawing.
  • a thermal afterburning device not shown in the drawing.
  • each branch line which connects a tapping point 15 to the manifold 16
  • the tapping points 15 are closer to each other near the inlet opening 2 of the drying device than near the outlet opening 3, since more solvent vapors develop in the vicinity of the inlet opening 2.
  • the air containing solvent, which is discharged via the manifold 16, is burned in the thermal afterburning device; the exhaust gases cleaned in this way are discharged into the atmosphere.
  • the thermal afterburning device fresh air, which is sucked in from the outside atmosphere, is heated via a heat exchanger and injected via a line 18 into the interior of the housing 1 near the inlet opening 2.
  • the air introduced here balances the air balance in the interior of the housing 1 and has a temperature which is above the condensation temperature of the solvents, as a result of which recondensation of these solvents on colder housing parts is avoided.
  • the hot air generated by the thermal afterburning device is fed via a line 19 to the outlet opening 3 of the drying device; here it essentially serves as sealing air for separating the atmosphere of the interior of the evaporation zone 6 and from that of a downstream processing station in which the dried metal strip 8 is cooled, for example.
  • the drying device described works as follows:
  • the metal strip 8 provided with a fresh, solvent-containing coating enters the interior of the housing 1 via the inlet opening 2.
  • the cooler air entering through the inlet opening 2 comes from the
  • the outside atmosphere is immediately warmed to a temperature by the hot air supplied via line 18, which prevents solvents from recondensing.
  • the metal strip 8 now moves successively towards the various infrared radiators 14, which irradiate the opposite surfaces of the metal strip 8.
  • the IR radiation first penetrates the coating from the outside inwards, is reflected on the metallic surface of the metal strip 8 and then passes through the coating a second time.
  • the wavelength of the IR radiation is matched to the material of the coating in such a way that, if possible, all of the IR radiation is completely absorbed when it passes through the coating twice, so that as little IR radiation as possible emerges from the coating after reflection.
  • the correct wavelength can therefore be determined from the absorption bands of the coating material.
  • the solvent is expelled very quickly over a very short distance that the metal strip 8 must cover for this purpose.
  • the developing solvent vapors are sucked off in particular in the entrance area of the drying zone 5 via the extraction points 15 located there and fed to the afterburning via the collecting line 16.
  • the completely dried metal strip 8 leaves the housing 1 of the drying device with a cross-linked coating through the hot sealing air in the outlet opening 3 and can then be cooled and wound up.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Microbiology (AREA)
  • Textile Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Drying Of Solid Materials (AREA)
  • Coating Apparatus (AREA)

Abstract

L'invention concerne un procédé et un dispositif de séchage et/ou de réticulation d'un revêtement d'une bande métallique (8), contenant un solvant. Le procédé selon l'invention consiste à faire passer de manière connue en soi la bande métallique revêtue (8) dans un dispositif de séchage, dans lequel ladite bande est soumise à un rayonnement infrarouge présentant notamment une longueur d'onde de 0,8µm à environ 1,5µm. En même temps, l'intérieur du dispositif de séchage reçoit un gaz dont la température est supérieure à la température de condensation du solvant. Par rapport à des procédés et dispositifs habituels faisant intervenir des bobines d'induction, ce n'est pas le matériau de base, c.-à-d. la bande métallique (8), mais d'abord le revêtement qui est chauffé. Ainsi, les durées de séchage et de réticulation peuvent être réduites et le rendement thermique est amélioré.
EP02781203A 2001-11-22 2002-10-02 Procede et dispositif de sechage et/ou reticulation d'un revetement d'une bande metallique contenant un solvant Withdrawn EP1446236A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10158008 2001-11-22
DE2001158008 DE10158008A1 (de) 2001-11-22 2001-11-22 Verfahren und Vorrichtung zum Trocknen und/oder Vernetzen einer lösemittelhaltigen Beschichtung eines Metallbands
PCT/EP2002/011031 WO2003043746A2 (fr) 2001-11-22 2002-10-02 Procede et dispositif de sechage et/ou reticulation d'un revetement d'une bande metallique contenant un solvant

Publications (1)

Publication Number Publication Date
EP1446236A2 true EP1446236A2 (fr) 2004-08-18

Family

ID=7707034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02781203A Withdrawn EP1446236A2 (fr) 2001-11-22 2002-10-02 Procede et dispositif de sechage et/ou reticulation d'un revetement d'une bande metallique contenant un solvant

Country Status (3)

Country Link
EP (1) EP1446236A2 (fr)
DE (1) DE10158008A1 (fr)
WO (1) WO2003043746A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10245004A1 (de) * 2002-09-26 2004-04-29 Advanced Photonics Technologies Ag Verfahren und Anordnung zur thermischen Behandlung eines Werkstücks
DE20304641U1 (de) * 2003-03-21 2003-05-22 Josef Schiele Ohg Beschichtungsvorrichtung
DE102004059903B4 (de) 2004-12-13 2013-02-07 Adphos Advanced Photonics Technologies Ag Verfahren und Anlage zum Beschichten eines Matallbands mit einer lösemittelhaltigen Beschichtung und zum Trocknen und/oder Vernetzen derselben
EP1790928A1 (fr) * 2005-11-25 2007-05-30 Advanced Photonics Technologies AG Procédé et dispositif de revêtement de bandes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH276118A (de) * 1948-11-08 1951-06-30 Haas Jun Hermann Einrichtung zum Trocknen von Materialbahnen.
DE3811620A1 (de) * 1988-04-07 1989-10-26 Vits Maschinenbau Gmbh Verfahren und vorrichtung zur waermebehandlung und/oder trocknung einer materialbahn im durchlauf
KR20000011746A (ko) * 1998-07-17 2000-02-25 미야무라 심뻬이 동박의건조방법및동박건조장치

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03043746A3 *

Also Published As

Publication number Publication date
WO2003043746A2 (fr) 2003-05-30
WO2003043746A8 (fr) 2004-05-21
WO2003043746A3 (fr) 2004-03-04
DE10158008A1 (de) 2003-06-05

Similar Documents

Publication Publication Date Title
EP1819451B1 (fr) Procede et installation pour enduire une bande metallique d'un revetement contenant un solvant et pour secher et/ou reticuler ce revetement
EP2783177B1 (fr) Dispositif de mise en température d'objets
EP0336120A2 (fr) Dispositif de traitement thermique et/ou de séchage d'une bande de matière en mouvement
EP0740956A2 (fr) Procédé et appareil pour la régénération d'un adsorbant chargé d'un agent, en particulier d'humidité
EP2758736B1 (fr) Système de chauffage destiné à chauffer un milieu de traitement gazeux pour un séchoir
AT508776A4 (de) Verfahren zum vorwärmen von glühgut in einer haubenglühanlage
EP2225044B1 (fr) Dispositif de refroidissement et procédé de refroidissement d'objets sortant d'un dispositif d'application de revêtement
DE4436713B4 (de) Vorrichtung zur Trocknung der Oberflächen eines Gegenstandes
EP1446236A2 (fr) Procede et dispositif de sechage et/ou reticulation d'un revetement d'une bande metallique contenant un solvant
DE3013820A1 (de) Trockenverfahren mit rueckgewinnung der zur trocknung erforderlichen energie
DE4220143A1 (de) Elektrisch beheizter Trockner und Kühler für Schüttgüter und Schlämme
DE19538364C5 (de) Vorrichtung zur Schnellerwärmung von Metall-Preßbolzen
DE10242944B4 (de) Trockner für Gegenstände, insbesondere für Fahrzeugkarosserien, sowie Verfahren zum Betreiben eines solchen Trockners
EP0971191B1 (fr) Procédé et dispositif pour traiter des objets par un gaz chauffé
DE10130342C1 (de) Verfahren und Vorrichtung zum Trocknen und/oder Einbrennen einer auf ein metallisches Band aufgebrachten Beschichtung
AT225258B (de) Verfahren zum Emaillieren von Drähten und Emaillierofen hiefür
EP2150762B1 (fr) Installation de revêtement
EP0134914B1 (fr) Installation pour le traitement thermique de bandes en déplacement
DE2137279C3 (de) Durchlauftrockner zum zweistufigen Trocknen lackierter oder bedruckter Gegenstände
DE3942609A1 (de) Verfahren zur waermebehandlung von mit einer kunststoff-beschichtung versehenen drahtfoermigen produkten, sowie ein ofen zur durchfuehrung des verfahrens
EP2105212B1 (fr) Dispositif et procédé destinés au chauffage de bandes de métal
DE3612395A1 (de) Trockner
DE102005037532A1 (de) Anlage zum Reinigen von Material im Durchlaufbetrieb
DE1602175A1 (de) Verfahren und Vorrichtung zum Beseitigen der beim Walzen infolge der Wasserkuehlung der Walzen an dem Walzgeruest entstandenen Dampf- bzw. Nebelbildung
DE9416532U1 (de) Vorrichtung zur Trocknung der Oberfläche eines Gegenstandes

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: 20040430

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

17Q First examination report despatched

Effective date: 20040816

RIN1 Information on inventor provided before grant (corrected)

Inventor name: LINK, KERSTEN

Inventor name: DIBON, ANDREAS

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: EISENMANN MASCHINENBAU GMBH & CO. KG

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20041228