EP3374094A1 - Induction d'une gélification et/ou d'une transition de phase et/ou d'un changement d'état chimique dans une substance de scellement à appliquer - Google Patents

Induction d'une gélification et/ou d'une transition de phase et/ou d'un changement d'état chimique dans une substance de scellement à appliquer

Info

Publication number
EP3374094A1
EP3374094A1 EP16801722.6A EP16801722A EP3374094A1 EP 3374094 A1 EP3374094 A1 EP 3374094A1 EP 16801722 A EP16801722 A EP 16801722A EP 3374094 A1 EP3374094 A1 EP 3374094A1
Authority
EP
European Patent Office
Prior art keywords
sealing substance
gelling
state
mean
sealing
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.)
Pending
Application number
EP16801722.6A
Other languages
German (de)
English (en)
Inventor
Johann Resch
Martin ACHTER
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.)
Polyplan-Gmbh Polyurethan-Maschinen
Original Assignee
Polyplan-Gmbh Polyurethan-Maschinen
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 Polyplan-Gmbh Polyurethan-Maschinen filed Critical Polyplan-Gmbh Polyurethan-Maschinen
Publication of EP3374094A1 publication Critical patent/EP3374094A1/fr
Pending 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
    • 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.
    • B05D3/062—Pretreatment
    • 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
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/34—Applying different liquids or other fluent materials simultaneously
    • 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
    • B05D3/0218—Pretreatment, e.g. heating the substrate

Definitions

  • the invention relates to a method for applying a sealing substance, in particular a wax mixture on a body component or in a cavity of a vehicle by means of a sealing substance applicator, in particular a wax applicator lance, wherein the sealing substance from a conveyor in the liquid state through the
  • a sealant and / or a phase transition or a chemical change of state is induced according to the features of claim 1. Furthermore, an arrangement for applying a sealing substance, in particular a wax mixture on a body component or in a cavity of a vehicle with the features of claim 8 indicated.
  • the object of the present invention is to specify a method and an arrangement with which a sealing substance can be applied to a body component of a vehicle and fixed there at the same time. This object is achieved in procedural terms with the features of claim 1 and in device-technical terms with the features of claim 11. Advantageous developments are specified in the subclaims.
  • Electromagnetic radiation is irradiated, in particular with UV light, to induce a change in state by the electromagnetic radiation and to convert the sealing substance in a firmer, in particular gel and / or molecularly crosslinked state.
  • the electromagnetic radiation can be in the UV range or even shorter wavelength.
  • micro or radio waves or even visible light can be used.
  • the irradiation can be continuous, intermittent or pulsed. It can be used relatively broadband or even radiation with a very narrow spectrum.
  • As light sources in addition to UV lamps or stroboscopic lamps and laser, in particular semiconductor or diode lasers, into consideration.
  • the transfer of the sealing substance from the liquid state to a more solid, in particular gel, state takes place within a process time t P between 10 minutes and 10 seconds, preferably between 2 minutes and 30 seconds. Due to these relatively short process times, it is sufficiently ensured that bleeding of the sealing substance, in particular under the action of the sealing substance
  • a separation between gelling and final curing may be desired in the production process, since an immediate curing in the curing process itself or in the further production of the vehicle could lead to fractures and thus to an insufficiently effective seal.
  • the curing process is used automatically, at the latest after the start of gelling, possibly with a time delay, or that the curing process is also induced separately.
  • the curing process compared to the process of transferring the sealing substance from a liquid state to a gel state is set so that it takes much longer, preferably at least twice as long, more preferably at least 10th times it takes so long.
  • this reciprocal adjustment of the processes of gelling on the one hand and hardening on the other hand ensures that the sealing substance is sufficiently fixed and, in particular, sagging under the action of gravity is prevented, but at the same time the sealing coating is still sufficiently flexible to allow further processing of the vehicle during assembly - not to impair process or survive without damage or even breaks.
  • the final curing process is applied for a few hours to a few days.
  • the duration of the gelling process can be defined by changing the fluidity of the material.
  • the flowability of the sealing substance during application, before inducing gelling may have a first value V, and after passing through the gelling process, a second value V g . It can be considered as the start of the gelation process, as soon as the flowability of V, on V g has reduced by at least 2% and as the end of the gelling process, as soon as 98% of the value V g are reached.
  • the start can be considered as the beginning of a cure and the end of the cure process when 80% of a final hardness (eg to Shore) is reached.
  • an additional Indutician ist the gelling or Induz réelle a curing takes place in that the sealing substance is heated before or during application to an application temperature T A above an activation threshold T s .
  • the activation of a wax mixture by a so-called Schukick is known per se.
  • activation of at least one gelling, possibly also of the curing process is induced by irradiation with electromagnetic radiation. Only additionally could gelling be supported by heating the sealing substance above an activation threshold T s .
  • the activation of the curing process could be initiated by the heating of the sealing substance above the activation threshold T s .
  • the sealing substance may be chosen such that the activation threshold T s is in the range between 60 ° C and 120 ° C, preferably at about 80 ° C.
  • the sealant may be ejected from the sealant applicator at a deployment temperature T A of 90 ° C to 120 ° C, preferably about 95 ° C.
  • Sealing substance are provided from a liquid phase to a firmer, in particular gel, phase, wherein the means for inducing gelling comprise one or more irradiation means to the
  • Sealant to be irradiated immediately before, during or after impact with the body component and to induce gelling. It is explicitly pointed out that the means for inducing gelling can also induce curing at the same time, if the
  • the means for inducing gelling or curing may also include heating means in the sealant applicator or upstream of the sealant applicator to heat the sealant and expel it at an application temperature T A from the sealant applicator such that the sealing substance is kept liquid when ejected by the sealing substance applying means and gels after impacting the body member.
  • heating means in the sealant applicator or upstream of the sealant applicator to heat the sealant and expel it at an application temperature T A from the sealant applicator such that the sealing substance is kept liquid when ejected by the sealing substance applying means and gels after impacting the body member.
  • T A application temperature
  • Body component is maintained at a predetermined temperature or is heated to a predetermined temperature.
  • UV light is used for the irradiation, radiation hardening takes place, for example, in such a way that a chemical change in state is produced with the aid of the high-energy radiation provided by the UV light.
  • reactive materials can be converted from a low molecular weight to a high molecular weight state by the high-energy radiation provided by the UV light.
  • the heaters may be provided upstream of the sealant application device. It is also conceivable that the heating devices heat the sealing substance over a prolonged period of time such that when it is expelled from the sealing application device
  • Application temperature T A is guaranteed.
  • FIG. 1 shows a first embodiment of an inventive arrangement for carrying out a variant of the method according to the invention
  • Figure 2 shows a modified embodiment of an arrangement according to the
  • Figure 3 shows a further modified embodiment of an arrangement according to the invention for carrying out a further variant of the method according to the invention.
  • FIG. 1 illustrates a first embodiment of an arrangement according to the invention for carrying out a variant of the method according to the invention.
  • a wax mixture is stored in a storage container 15.
  • the storage container 15 is in fluid communication with a delivery device 12, an interruption valve 16, and a sealant application device 11.
  • the sealing substance accommodated in the storage container 15 can thus be ejected via the wax delivery device 12, the interruption valve 16 and the sealing substance application device 11 in the direction of a body component or into a cavity of a vehicle.
  • a control device 18 is in operative connection with the delivery device 12, the optionally provided interruption valve 16 and a UV irradiation device 14. Immediately upon ejection of the wax mixture from the sealant application device 11 or shortly after impact of the wax mixture on the body component, it is irradiated with UV light to to convert the wax mixture from a liquid to a firmer state, in particular by a chemical change of state.
  • UV light By the high-energy radiation of UV light, for example, low molecular weight components can be converted into high molecular weight components and thus a stronger crosslinking or solidification of the wax mixture can be achieved.
  • Irradiation with UV light can be continuous, intermittent or pulsed.
  • FIG. 2 illustrates a modified embodiment of an arrangement according to the invention for carrying out another variant of the method according to the invention.
  • the sealing substance stockpiled in the storage container 15 is heated by a heater 13 on a first
  • a second heater 17 is provided to the concretely conveyed via the conveyor 12 and ejected from the sealing substance application device 11
  • Application temperature T A for example, 105 ° C to heat.
  • the gelling can also be supported by the heating, wherein the
  • the activation threshold can be any activation threshold T s .
  • a hardening process of the sealing substance can be achieved either by the
  • FIG. 3 illustrates a further modified embodiment of an arrangement according to the invention for carrying out a further variant of the method according to the invention.
  • a sealing substance is stored, the analogous to the arrangements or process variants according to Figures 1 or 2 via a conveyor 12 and an optionally provided interruption valve 16 is conveyed to a sealing substance application device 11.
  • a Hilfsstoffausquest issued 19 is provided, which is kept ready in a Hilfsstoffbevorratungs matterer 20 and conveyed via an auxiliary material conveyor 21 and an optional auxiliary material interruption valve 22 to the aforementioned auxiliary ejector 19.
  • Both the discharge of the wax mixture from the sealant substance delivery device 11 and the discharge of the excipient via the excipient discharge device 19 can be controlled via a control device 18, either by controlling the performance of the delivery device 12 or of the auxiliary substance delivery device 21 and / or by appropriate actuation of the interruption valve 16 or the auxiliary substance interruption valve 22.
  • the induction of gelling can be assisted or the curing of the

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne un procédé destiné à appliquer une substance de scellement, en particulier un mélange de cires, sur un composant de carrosserie ou dans un espace creux d'un véhicule au moyen d'un système de distribution de la substance de scellement, en particulier d'une buse de distribution de cires. Selon le procédé, la substance de scellement est transportée par un système de transport à l'état liquide par le système de distribution de la substance de scellement et la gélification et/ou une transition de phases ou un changement d'état chimique sont induits, l'induction de la gélification à l'intérieur de la substance de scellement s'effectuant par irradiation de la substance de scellement avec un rayonnement électromagnétique, en particulier de la lumière UV immédiatement avant ou pendant l'application ou immédiatement après l'application sur le composant de carrosserie afin d'induire un changement d'état grâce au rayonnement électromagnétique et afin de faire passer la substance de scellement dans un état plus solide, en particulier gélifié et/ou réticulé sur le plan moléculaire.
EP16801722.6A 2015-11-11 2016-11-11 Induction d'une gélification et/ou d'une transition de phase et/ou d'un changement d'état chimique dans une substance de scellement à appliquer Pending EP3374094A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015119486 2015-11-11
PCT/EP2016/077442 WO2017081258A1 (fr) 2015-11-11 2016-11-11 Induction d'une gélification et/ou d'une transition de phase et/ou d'un changement d'état chimique dans une substance de scellement à appliquer

Publications (1)

Publication Number Publication Date
EP3374094A1 true EP3374094A1 (fr) 2018-09-19

Family

ID=57406210

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16801722.6A Pending EP3374094A1 (fr) 2015-11-11 2016-11-11 Induction d'une gélification et/ou d'une transition de phase et/ou d'un changement d'état chimique dans une substance de scellement à appliquer

Country Status (2)

Country Link
EP (1) EP3374094A1 (fr)
WO (1) WO2017081258A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090092764A1 (en) * 2007-10-05 2009-04-09 Hoeckelman Leslie A Method and apparatus for simultaneous spray and cure initiation of curable polymer coating compositions
DE202014103202U1 (de) * 2014-07-11 2015-10-13 Kds Holding Gmbh Applikator zum Auftragen eines lichtaushärtenden Verbundmaterials

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3702999C2 (de) * 1987-02-02 2003-03-06 Siemens Ag Vorrichtung zur Verarbeitung von UV-härtbaren Reaktionsharzmassen und deren Anwendung
DE19956335A1 (de) * 1999-11-23 2001-05-31 Sca Schucker Gmbh & Co Verfahren und Anlage zur Herstellung von mit einer Dämmstoffschicht versehenen Karosseriebauteilen
US9339832B2 (en) * 2012-03-22 2016-05-17 Basf Se Spraygun for producing cured coating films and methods of use thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090092764A1 (en) * 2007-10-05 2009-04-09 Hoeckelman Leslie A Method and apparatus for simultaneous spray and cure initiation of curable polymer coating compositions
DE202014103202U1 (de) * 2014-07-11 2015-10-13 Kds Holding Gmbh Applikator zum Auftragen eines lichtaushärtenden Verbundmaterials

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2017081258A1 *

Also Published As

Publication number Publication date
WO2017081258A1 (fr) 2017-05-18

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