EP0278475A2 - Procédé pour traiter les arrêtes de coupe des flans de bandes revêtues; flans utilisés pour la fabrication des caisses en tôle - Google Patents

Procédé pour traiter les arrêtes de coupe des flans de bandes revêtues; flans utilisés pour la fabrication des caisses en tôle Download PDF

Info

Publication number
EP0278475A2
EP0278475A2 EP88101865A EP88101865A EP0278475A2 EP 0278475 A2 EP0278475 A2 EP 0278475A2 EP 88101865 A EP88101865 A EP 88101865A EP 88101865 A EP88101865 A EP 88101865A EP 0278475 A2 EP0278475 A2 EP 0278475A2
Authority
EP
European Patent Office
Prior art keywords
cut edges
coated
lacquer
visible
blank
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.)
Ceased
Application number
EP88101865A
Other languages
German (de)
English (en)
Other versions
EP0278475A3 (fr
Inventor
Hans-Werner Pompe
Hans Dr. Scheidemann
Eberhard Ochs
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.)
Thermo Electron LED GmbH
Original Assignee
Heraeus Instruments GmbH
WC Heraus 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 Heraeus Instruments GmbH, WC Heraus GmbH and Co KG filed Critical Heraeus Instruments GmbH
Publication of EP0278475A2 publication Critical patent/EP0278475A2/fr
Publication of EP0278475A3 publication Critical patent/EP0278475A3/fr
Ceased legal-status Critical Current

Links

Images

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
    • B05D7/16—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 using synthetic lacquers or varnishes
    • 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
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • 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
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/32—Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
    • 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

Definitions

  • the invention relates to a method for treating the cut edges of blanks for sheet metal housing parts, in particular strip-coated blanks which are precoated at least on the side surface forming the visible side. Furthermore, the invention relates to a blank for a sheet metal housing part, in particular a tape-coated blank, in which at least the side surface forming the visible side is precoated.
  • sheet metal processing is increasingly used in sheet metal processing.
  • at least one side surface is covered with a varnish.
  • Sheet metal parts are cut out and punched out of these coated sheets, the coated side forming, for example, the visible outside of a housing part.
  • the term "coil-coated sheet metal” is not only to be understood as strips, but also sheet metal plates which are precoated at least on one side.
  • the present invention is based on the object of specifying a method which enables cut edges to be coated when processing strip-coated sheet metal.
  • a pre-painted sheet should be specified, the cut edges of which are covered.
  • This object is achieved in the specified method in that at least the visible cut edges are coated with a UV-curing lacquer by means of one or more spray nozzles which are moved along the cut edges and are positioned and aligned such that they are at a distance from the respective one Edge area are directed at an angle from the side of the blank opposite the visible side, and that the applied lacquer is then hardened with UV radiation.
  • the object is achieved in that at least the visible cut edges are coated with a lacquer which cures by UV radiation.
  • the method on which the idea according to the invention is based makes it possible to paint cut edges of strip-coated sheet metal, in particular after stamping and cutting.
  • An important measure is that lacquer curing by UV radiation is used for painting these cut edges. Such UV lacquers cure under UV radiation after only a few seconds, so that high cycle times can be achieved in the production of such blanks.
  • cut edges coated by the method according to the invention obtain a uniform coating of the edges.
  • the fact that the one or more spray nozzles are directed at an angle from the side opposite to the visible side to the edges to be coated prevents paint from depositing on the precoated visible side.
  • an extractor fan can also be operated during the edge coating on the side facing away from the visible side.
  • the spray nozzle is preferably aligned with the edge in such a way that the axis of the spray nozzle forms an angle between 10 ° and 80 ° with the plane of the visible side. Good results are achieved when the nozzle is aligned at an angle of 30 ° to 60 ° with an optimum at 45 °.
  • the layer thickness of the applied paint should not exceed 100 ⁇ m; A particularly uniform, flat and opaque coating is achieved with a layer thickness of 10 to 20 ⁇ m.
  • additional baffle plates and air guide plates can be used in addition to the suction to effectively prevent paint from depositing on the pre-painted visible side.
  • Several nozzles can be combined to form a program-controlled injection unit that is moved and switched on according to the workpiece. For large sheets and the associated large travel distances, it is advantageous to use several injection units.
  • the coating system used for the process is a system based on UV photopolymerization, which allows very short production times.
  • pigmented or transparent sprayable coating systems can be used, which ensure curing in a short time under UV radiation.
  • the edge coating with UV varnish has the advantage that the varnish of the precoated side surface is not or only slightly heated during the curing process.
  • the edges coated with UV lacquer have the advantage that no flaking of the lacquer can be observed during subsequent bending after the edges have hardened.
  • the blank 1 shown in top view in FIG. 1 is punched out of a sheet metal strip pre-coated on its underside 2.
  • the blank 1 shows in its four corner areas a punched-out area with unpainted cut edges 3.
  • two perforations 4 can be seen in the right area in FIG.
  • the blank 1 is moved in the direction of the arrow 5 to a painting station, at which the cut edges 3 are coated by means of a spray nozzle 6, as can be seen in FIG. 2.
  • the Spray nozzle 6 is directed obliquely from the opposite side of the coated underside 2 onto the cutting edge 3, the angle 9 enclosed in the example shown between the plane 7 of the visible side 2 of the blank and the axes 8 of the spray nozzle 6 being approximately 45 °.
  • a suction device 10 is additionally arranged below the blank 1 in order to suction paint mist underneath the blank. After the edges have been coated with the lacquer, they are moved to a further processing station and, as shown in FIG. 2 on the right side of the blank, are irradiated with a UV radiation source 11 in order to harden the UV lacquer.
  • the cycle time between the application of the lacquer and the irradiation with UV radiation is between 5 and 20 seconds. Curing by means of UV radiation can also take place within a period of 5 to 20 seconds.
  • the perforations 4 can be coated, for which purpose the spray nozzle 6 is arranged to be pivotable in at least two spatial directions parallel to the plane of the blank.
  • the spray nozzle 6 is set such that the area covered by the nozzle jet has a diameter of approximately 50 mm.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
EP88101865A 1987-02-12 1988-02-09 Procédé pour traiter les arrêtes de coupe des flans de bandes revêtues; flans utilisés pour la fabrication des caisses en tôle Ceased EP0278475A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3704364 1987-02-12
DE19873704364 DE3704364C1 (de) 1987-02-12 1987-02-12 Verfahren zur Schnittkantenbehandlung von Zuschnitten aus bandlackiertem Material fuer Blechgehaeuseteile

Publications (2)

Publication Number Publication Date
EP0278475A2 true EP0278475A2 (fr) 1988-08-17
EP0278475A3 EP0278475A3 (fr) 1989-03-22

Family

ID=6320832

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88101865A Ceased EP0278475A3 (fr) 1987-02-12 1988-02-09 Procédé pour traiter les arrêtes de coupe des flans de bandes revêtues; flans utilisés pour la fabrication des caisses en tôle

Country Status (2)

Country Link
EP (1) EP0278475A3 (fr)
DE (1) DE3704364C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011000074A1 (de) 2011-01-10 2012-07-12 Schmitz Cargobull Ag Profilelement, Aufbau für ein Nutzfahrzeug und Fertigungslinie zum Herstellen eines Profilelements

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4011320C2 (de) * 1990-04-07 1994-02-03 Brose Fahrzeugteile Verfahren zur Behandlung der Kanten gestanzter, gepreßter oder geschnittener Metallteile
DE102006062766A1 (de) 2006-12-22 2008-07-03 Voestalpine Mechatronics Gmbh Verfahren zum Aufbringen eines Korrosions- und Schnittschutzes auf Schnittkanten eines Blechbauteils
DE102006061014B8 (de) * 2006-12-22 2008-12-18 Vatron Gmbh Vorrichtung zum Aufbringen eines Korrosions- und Schnittschutzes auf Schnittkanten von Blechbauteilen
DE202011050900U1 (de) * 2011-08-04 2011-10-07 Dura Automotive Body & Glass Systems Gmbh Leistenbauteil für ein Kraftfahrzeug mit einer Ausnehmung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1156107A (en) * 1967-05-29 1969-06-25 Continental Can Co Process and Apparatus for Coating Side Seam Areas of Containers.
DE1652285A1 (de) * 1967-09-29 1970-03-05 Becker Dr Otto Alfred Sicherung gegen Rosten von blanken Stellen an mit Kunststoffen,Lacken,Folien od.dgl. beschichteten Blechen
US3852095A (en) * 1970-09-28 1974-12-03 Nordson Corp Method and apparatus for applying wax to can lid rims
DE3445922A1 (de) * 1984-02-09 1985-09-05 Reinhard 4992 Espelkamp Stanger Schutzbeschichtungsverfahren
DE3603126A1 (de) * 1986-02-01 1987-08-06 Schmalbach Lubeca Verfahren und vorrichtung zum auftragen von fluessigen korrosionsschutzmitteln auf korrosionsgefaehrdete bereiche von verpackungsbehaeltern oder -behaelterteilen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1156107A (en) * 1967-05-29 1969-06-25 Continental Can Co Process and Apparatus for Coating Side Seam Areas of Containers.
DE1652285A1 (de) * 1967-09-29 1970-03-05 Becker Dr Otto Alfred Sicherung gegen Rosten von blanken Stellen an mit Kunststoffen,Lacken,Folien od.dgl. beschichteten Blechen
US3852095A (en) * 1970-09-28 1974-12-03 Nordson Corp Method and apparatus for applying wax to can lid rims
DE3445922A1 (de) * 1984-02-09 1985-09-05 Reinhard 4992 Espelkamp Stanger Schutzbeschichtungsverfahren
DE3603126A1 (de) * 1986-02-01 1987-08-06 Schmalbach Lubeca Verfahren und vorrichtung zum auftragen von fluessigen korrosionsschutzmitteln auf korrosionsgefaehrdete bereiche von verpackungsbehaeltern oder -behaelterteilen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011000074A1 (de) 2011-01-10 2012-07-12 Schmitz Cargobull Ag Profilelement, Aufbau für ein Nutzfahrzeug und Fertigungslinie zum Herstellen eines Profilelements
DE102011000074B4 (de) 2011-01-10 2019-09-26 Schmitz Cargobull Ag Profilelement, Aufbau für ein Nutzfahrzeug und Fertigungslinie zum Herstellen eines Profilelements

Also Published As

Publication number Publication date
DE3704364C1 (de) 1987-08-13
EP0278475A3 (fr) 1989-03-22

Similar Documents

Publication Publication Date Title
EP3804863B1 (fr) Procédé d'application et système d'application
DE112013004555T5 (de) Beschichtungsverfahren und Beschichtungsvorrichtung
EP2656923A2 (fr) Procédé et dispositif de fabrication d'un élément de construction revêtu
DE3704364C1 (de) Verfahren zur Schnittkantenbehandlung von Zuschnitten aus bandlackiertem Material fuer Blechgehaeuseteile
EP0771606B1 (fr) Procédé de soudage avec un faisceau avec arrondissement des bords
DE102016111741A1 (de) Verfahren zur Herstellung eines Verkleidungsbauteils aus Kunststoff mit wenigstens einem Durchbruch zur Aufnahme eines Anbauteils und ein solches Verkleidungsbauteil
DE202021002006U1 (de) Herstellung einer ätzresisten Maske zur partiellen Passivierung einer Pressblech- oder Endlosbandoberfläche, die anschließend einer chemischen Oberflächenstrukturierung unterzogen werden
DE69426257T2 (de) Verfahren zur Verbesserung des Aussehens eines mit einer Lackfarbe überzogenen Gegenstands und Vorrichtung zur Durchfürung dieses Verfahrens
DE2010631C3 (de) Verfahren zur Herstellung von Aufreißdeckeln aus Blech
DE102020131330A1 (de) Vorrichtung und verfahren zum simulieren eines fluidauftrags auf ein substrat durch mindestens eine düsenanordnung
DE4011320C2 (de) Verfahren zur Behandlung der Kanten gestanzter, gepreßter oder geschnittener Metallteile
EP3689619B1 (fr) Procédé d'impression d'une surface avec un motif d'impression et dispositif d'impression associé
EP0469369B1 (fr) Sortie de plafond
DE2711228A1 (de) Vorrichtung zum kontinuierlichen beschichten einer bewegten werkstoffbahn
EP0489355B1 (fr) Procédé pour la fabrication d'un grillage d'air extérieur
DE102006018192B3 (de) Verfahren zur Erzeugung eines Hohlkörpers aus einem kunststoffbeschichteten Metallbandmaterial
DE10160496A1 (de) Sonotrode für eine Ultraschall-Schweißanlage
EP1994990B1 (fr) Procédé destiné à l'application d'une couche de vitrification
DE2951924C2 (de) Verfahren und Vorrichtung zur Erzielung einer Farbabstufung auf einem emaillierten Objekt
DE102019131521A1 (de) Verfahren zum Beschichten eines Kunststoffbauteils und Kunststoffbauteil
EP4424518A2 (fr) Tableau blanc
DE102019211647A1 (de) Verfahren zur Herstellung einer Lötverbindung durch Laserstrahllöten
DE10342579A1 (de) Dreidimensionales Schriftzeichen und Verfahren zu seiner Herstellung
DE102019133759A1 (de) Verfahren zum Versiegeln einer an einer Oberfläche eines Bauteils angeordneten Beschichtung sowie Vorrichtung hierzu
DE102012103761A1 (de) Verfahren und Vorrichtung zur Herstellung eines beschichteten Werkstückes und Werkstück

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: 19880218

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH DE FR GB IT LI NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT CH DE FR GB IT LI NL

17Q First examination report despatched

Effective date: 19900510

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

Owner name: HERAEUS INSTRUMENTS GMBH

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

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19901229