EP0330237B1 - Procédé de revêtement avec des matières synthétiques de portes ou panneaux pour portes - Google Patents

Procédé de revêtement avec des matières synthétiques de portes ou panneaux pour portes Download PDF

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Publication number
EP0330237B1
EP0330237B1 EP89103329A EP89103329A EP0330237B1 EP 0330237 B1 EP0330237 B1 EP 0330237B1 EP 89103329 A EP89103329 A EP 89103329A EP 89103329 A EP89103329 A EP 89103329A EP 0330237 B1 EP0330237 B1 EP 0330237B1
Authority
EP
European Patent Office
Prior art keywords
radiant energy
metal shell
synthetic material
coating
coated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89103329A
Other languages
German (de)
English (en)
Other versions
EP0330237A2 (fr
EP0330237A3 (fr
Inventor
Michael Dipl.-Ing. Hörmann
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.)
Hoermann KG Brockhagen
Original Assignee
Hoermann KG Brockhagen
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 Hoermann KG Brockhagen filed Critical Hoermann KG Brockhagen
Priority to AT8989103329T priority Critical patent/ATE105214T1/de
Publication of EP0330237A2 publication Critical patent/EP0330237A2/fr
Publication of EP0330237A3 publication Critical patent/EP0330237A3/fr
Application granted granted Critical
Publication of EP0330237B1 publication Critical patent/EP0330237B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B05D3/06—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 exposure to radiation
    • B05D3/061—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 exposure to radiation using U.V.
    • B05D3/065—After-treatment
    • B05D3/067—Curing or cross-linking the coating
    • 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
    • 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
    • B05D3/06—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 exposure to radiation
    • 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
    • B05D2401/00—Form of the coating product, e.g. solution, water dispersion, powders or the like
    • B05D2401/30—Form of the coating product, e.g. solution, water dispersion, powders or the like the coating being applied in other forms than involving eliminable solvent, diluent or dispersant
    • B05D2401/32—Form of the coating product, e.g. solution, water dispersion, powders or the like the coating being applied in other forms than involving eliminable solvent, diluent or dispersant applied as powders

Definitions

  • the invention relates to a method for plastic coating of a door or door leaf, a door leaf panel or the like, which is provided with a plastic insulating filling within a sheet metal shell to be coated on the outside, with the features of the preamble of claim 1.
  • Insulated door or door leaves and, above all, door leaf panels, such as those used for sectional doors or folding gates, are economically manufactured as mass-produced items, be it in mechanical individual construction or as a continuous line, as is customary with sectional door panels, which is then available in the individual panel lengths are divided.
  • the sheets can be pretreated in a certain way, for example primed or the like, whereupon the insulating layer is supplied, which can be done in such a way that, for example, a polyurethane foam is injected into the cavity of the sheet metal shell formed from the sheets forming the outer skin of the door leaf is, or in such a way that the sheet metal shell is only completed on one side, then filled with the insulating compound and then closed with a cover plate.
  • insulating fillings made of materials other than polyurethane foam are also known, the heat resistance of which is similarly low as that of insulation made from a foamed polyurethane composition.
  • thermoplastic plastic powder is applied to the outer sheet surface to be coated and then melted by heat, fused, sintered and the like, here briefly heated up to a temperature at which the over the surface of evenly sprinkled or otherwise applied plastic powder melts and, in the sense of the intended plastic coating, comes into intimate, permanent contact with the outer surface of the sheet metal shell.
  • Such a plastic coating of sheet metal surfaces is basically known (US-A-4 308 296, "Surface + Jot” (1986), number 4 pages 58 to 66).
  • an insulating filling of the type in question is only partially heat-resistant.
  • impairment can already occur at temperatures of over 70 to 80 ° C. be it the structure of the adherence to the inside of the sheet metal shell, which often contributes to the stability of the door, and the like.
  • a substantially higher temperature is required for the above-mentioned coating of a sheet with the aid of a plastic powder which is first sprinkled on and then heated, for example about 180 ° C. depending on the type of plastic powder. It can be a plastic powder based on polyurethane, polyester and the like.
  • the sprinkled fine granules of the powder are melted, and there is an intimate adherence of the melted powder to the surface of the metal shell, so that one can speak of a sintering process in the figurative sense. In this way, the desired weatherproof and impact-resistant plastic covering of the door leaf shell is obtained.
  • the invention has for its object to find a way to provide a door or door leaf, a door leaf panel or the like with an insulating material filling after completion with a plastic coating, without exceeding the lower thermal load of the insulating material compared to the coating temperature .
  • the plastic powder layer applied to the outer surface of the sheet metal shell of the door or door leaf, door leaf panel or the like is heated up to the subsequent border zone of the outer surface of the metal shell so quickly and intensively that the required coating temperature is reached without this temperature overlaps the insulating filling adjacent to the inside of the shell.
  • the sheet metal shell acts as a screen that distributes and radiates or dissipates the heat applied to the outside due to its good thermal conductivity over the sheet metal shell surfaces adjacent to the preferably continuously changing heating zone, so that overall a significantly lower heat gradient is emitted from the inside of the sheet metal shell to the adjacent insulation filling .
  • the applied plastic powder layer adheres more or less well to the outer surface of the sheet metal shell to be coated, so that there is a risk that the applied powder will be shaken off when the sheet metal shell is shaken, even if the powder layer is only partially lost leads to impairment of a uniform coating of the outer surface desirable according to weather resistance, color appearance and the like.
  • the energy radiation source is therefore moved as far as possible over the outer surface of the sheet metal shell provided with the plastic powder when it is at a standstill or in such a way that the sheet metal shell moves only extremely quietly, which cannot be achieved in the course of continuous production.
  • This movement of the energy radiation source over the resting, to be coated outer surface of the sheet metal shell has a peculiarity in that movement control of the energy radiation source only affects its holder and does not influence the course of a production line with a continuous movement of the door or gate leaves or panels.
  • the heat shielding effect of the sheet material of the sheet metal shell is dependent on the local position of the heating zone that is assumed.
  • the heat dissipation capacity when the heating zone is located in the central region of the outer broad side of the sheet metal shell to be coated is different or greater than in the edge regions thereof.
  • This positional dependence of the moving heating zone can be taken into account in various ways, namely by changing the speed and / or distance of the movement of the energy radiation source over the outer surface of the sheet metal shell to be coated, and by controlling the energy radiation intensity, that is, by controlling a movement sequence corresponding to this heat dissipation Heat supply per unit of time in accordance with the respective heat dissipation conditions.
  • These measures can be applied separately or in a superimposed manner.
  • the optimization of the stabilization is a requirement of the measures described individually or in combination a protective or boundary layer temperature, which is required for the plastic coating, without the insulating material filling being thermally damaged.
  • any suitable energy radiation can be used for the supply of heat.
  • Energy radiation carriers that do not require any special protective measures with regard to their effectiveness and / or their environmental impact are preferred.
  • Infrared light, ultraviolet light or laser beams are preferably used, which define the heating zone in an appropriate bundling.
  • a temperature control possibility in the sense shown above is also given in the intensity of the bundling or focusing.
  • One or more rows of such energy radiation beams are preferably provided, which sweep over the outer surface to be coated.
  • Such rows of energy radiation beams can also be provided in opposite directions to one another in order to optimize the coating temperature stability.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Pinball Game Machines (AREA)
  • Liquid Crystal (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Special Wing (AREA)
  • Refrigerator Housings (AREA)

Claims (11)

  1. Procédé de revêtement avec des matières synthétiques d'une porte ou d'un battant de porte ou d'un panneau de porte, qui est muni à l'intérieur d'une enveloppe en tôle à revêtir du côté extérieur, d'un remplissage isolant en matière synthétique, dont la stabilité à chaud se situe en-dessous de la température nécessaire pour la fusion et l'application de la poudre de matière synthétique amenée sur les surfaces extérieures de l'enveloppe en tôle pour le revêtement en matière synthétique, caractérisé en ce que cette température, après application de la poudre de matière synthétique est réglée au moyen d'un rayonnement d'énergie thermique rapide et bref, de façon que la poudre de matière synthétique soit fondue et chauffée sur la zone limite à revêtir de l'enveloppe en tôle, de manière à ne pas surchauffer le remplissage isolant au-delà de sa stabilité thermique, une source de rayonnement d'énergie étant déplacée au-dessus de la face extérieure de l'enveloppe en tôle revêtue de la poudre de matière synthétique et la quantité de chaleur de rayonnement par unité de temps appliquée à la face extérieure revêtue de la poudre de matière synthétique est commandée par la quantité de chaleur quittant la zone de chauffage correspondante conformément à une température des zones limites réglée de manière constante.
  2. Procédé selon la revendication 1, caractérisé en ce que la source de rayonnement d'énergie en particulier sous la forme d'un ou plusieurs faisceaux de rayons d'énergie, est déplacée hors de la face extérieure recouverte de la poudre de matière synthétique de l'enveloppe en tôle maintenue fixe.
  3. Procédé selon les revendications 1 ou 2, caractérisé en ce que la source de rayonnement d'énergie est déplacée continuellement hors de la face extérieure recouverte de la poudre de matière synthétique.
  4. Poudre selon une des revendications 1 à 3, caractérisé en ce que l'intensité du rayonnement est modifiée au cours du mouvement de la source de rayonnement d'énergie.
  5. Procédé selon une des revendications 1 à 4, caractérisé en ce que la vitesse du mouvement de la source de rayonnement d'énergie est modifiée hors de la face extérieure.
  6. Procédé selon une des revendications à 5, caractérisé en ce que la distance entre la face extérieure à revêtir et la source de rayonnement d'énergie est modifiée au cours du mouvement hors de la face extérieure.
  7. Procédé selon une des revendications 1 à 6, caractérisé en ce que comme rayonnement d'énergie on utilise un rayonnement de lumière infrarouge.
  8. Procédé selon une des revendications 1 à 6, caractérisé en ce que comme rayonnement d'énergie on utilise un rayonnement de lumière ultraviolette.
  9. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que comme rayonnement d'énergie on utilise un rayonnement laser.
  10. Procédé selon une des revendications 1 à 9, caractérisé en ce que la source de rayonnement d'énergie, sous la forme d'un grand nombre de faisceaux de rayons d'énergie disposés sensiblement en séries, est guidée hors de la face extérieure recouverte de poudre de matière synthétique, en particulier dans des directions de mouvement différents pour plusieurs de ces séries de faisceaux de rayons d'énergie.
  11. Procédé selon une des revendications 1 à 10, caractérisé en ce que l'application de la poudre de matière synthétique du revêtement se fait sous une charge électrostatique de la face extérieure à revêtir et/ou de la poudre de matière synthétique, de façon que les petits grains de poudre de matière synthétique adhèrent par attraction électrostatique à la face extérieure à revêtir, avant d'entreprendre le chauffage à la température de fusion ou de revêtement au moyen du rayonnement d'énergie.
EP89103329A 1988-02-25 1989-02-24 Procédé de revêtement avec des matières synthétiques de portes ou panneaux pour portes Expired - Lifetime EP0330237B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT8989103329T ATE105214T1 (de) 1988-02-25 1989-02-24 Verfahren zur kunststoffbeschichtung eines tueroder torblattes, torblattpaneeles oder dergleichen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3805961 1988-02-25
DE3805961A DE3805961C2 (de) 1988-02-25 1988-02-25 Verfahren zur Kunststoffbeschichtung eines Tür- oder Torblattes oder eines Torblattpaneeles

Publications (3)

Publication Number Publication Date
EP0330237A2 EP0330237A2 (fr) 1989-08-30
EP0330237A3 EP0330237A3 (fr) 1991-01-09
EP0330237B1 true EP0330237B1 (fr) 1994-05-04

Family

ID=6348175

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89103329A Expired - Lifetime EP0330237B1 (fr) 1988-02-25 1989-02-24 Procédé de revêtement avec des matières synthétiques de portes ou panneaux pour portes

Country Status (5)

Country Link
EP (1) EP0330237B1 (fr)
AT (1) ATE105214T1 (fr)
DE (2) DE3805961C2 (fr)
DK (1) DK173024B1 (fr)
ES (1) ES2053831T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017018955A1 (fr) 2015-07-30 2017-02-02 Pulver Kimya San. Ve Tic. A. S. Innovation relative à un système de chauffage qui est utilisé dans un processus de poudrage électrostatique de plaques sensibles à la température

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0426904B1 (fr) * 1989-11-06 1995-05-17 Dunfries Investments Limited Procédé d'application d'un revêtement sur un substrat
IT1243350B (it) * 1990-07-18 1994-06-10 Hoechst Italia Procedimento per il rivestimento di materiali termosensibili con vernice in polvere
DE4413202C2 (de) * 1994-04-13 2000-08-17 Ver Energiewerke Ag Verfahren und Anordnung zur Vermeidung des Anhaftens von in einem Heißgas geführten Partikeln an einem vom Heißgas beaufschlagten Anlagenteil, insbesondere an den Schaufeln einer Gasturbine
CN1203924C (zh) 1998-03-16 2005-06-01 先进光子学技术股份公司 用于粉末油漆的方法
DE19915059A1 (de) * 1999-04-01 2000-10-19 Industrieservis Ges Fuer Innov Infrarotbestrahlung
GB2428395B (en) * 2005-07-19 2007-09-05 Ian Webb A process of powder coating and a powder coating apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4308296A (en) * 1976-11-24 1981-12-29 Chitouras Costa G Method of curing particle-coated substrates
GB2024658A (en) * 1978-07-07 1980-01-16 Shaw J G Coating of compressed board materials
JPS5966376A (ja) * 1982-10-06 1984-04-14 Dainippon Printing Co Ltd 剥離性シ−トの製造法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017018955A1 (fr) 2015-07-30 2017-02-02 Pulver Kimya San. Ve Tic. A. S. Innovation relative à un système de chauffage qui est utilisé dans un processus de poudrage électrostatique de plaques sensibles à la température

Also Published As

Publication number Publication date
DK173024B1 (da) 1999-11-15
DK92889D0 (da) 1989-02-27
DE3805961A1 (de) 1989-08-31
EP0330237A2 (fr) 1989-08-30
EP0330237A3 (fr) 1991-01-09
DE58907591D1 (de) 1994-06-09
ATE105214T1 (de) 1994-05-15
DE3805961C2 (de) 1994-09-08
DK92889A (da) 1989-08-26
ES2053831T3 (es) 1994-08-01

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