WO2005085309A2 - Procede pour durcir une matiere de remplissage photosensible et dispositif de durcissement - Google Patents

Procede pour durcir une matiere de remplissage photosensible et dispositif de durcissement Download PDF

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Publication number
WO2005085309A2
WO2005085309A2 PCT/DE2005/000392 DE2005000392W WO2005085309A2 WO 2005085309 A2 WO2005085309 A2 WO 2005085309A2 DE 2005000392 W DE2005000392 W DE 2005000392W WO 2005085309 A2 WO2005085309 A2 WO 2005085309A2
Authority
WO
WIPO (PCT)
Prior art keywords
laser light
narrow
band
photosensitive
cured
Prior art date
Application number
PCT/DE2005/000392
Other languages
German (de)
English (en)
Other versions
WO2005085309A3 (fr
Inventor
Hartmut Zimmerman
Andreas Wenzel
Helmut J. Spanner
Klaus Schwenkenbecher
Original Assignee
Crylas Gmbh
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 Crylas Gmbh filed Critical Crylas Gmbh
Priority to DE112005001114T priority Critical patent/DE112005001114A5/de
Publication of WO2005085309A2 publication Critical patent/WO2005085309A2/fr
Publication of WO2005085309A3 publication Critical patent/WO2005085309A3/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules

Definitions

  • the invention relates to a method for curing a photosensitive filling material and a curing device.
  • UV light is generated with the aid of a UV lamp, in particular a mercury vapor lamp, or a UV-LED (light-emitting diode) and is brought to the location of the UV radiation via an optical fiber bundle.
  • a UV lamp in particular a mercury vapor lamp, or a UV-LED (light-emitting diode)
  • UV-LED light-emitting diode
  • the object of the invention is to provide an improved method for curing a filler material to be hardened with the aid of UV light and an improved hardening device with which the possible uses of UV light irradiation for hardening photosensitive filler materials are expanded.
  • the invention encompasses the idea of using narrow-band UN laser light for irradiating the photosensitive fill material to be hardened in order to harden the photosensitive fill material.
  • the narrow-band UV laser light can be provided with a UV laser light source, namely a laser light source that generates UV light, or by using a laser light source that generates laser light outside the UV range and subsequent frequency conversion.
  • Filling materials in the sense of the present application are adhesives, casting compounds and sealing materials.
  • Narrow-band and coherent UV laser light is radiated onto the photosensitive filling material, so that different species, in particular molecules and / or compounds, can be spectrally selectively excited for curing in the photosensitive filling material.
  • Remote curing is possible because the laser light can be transmitted over long distances without significant losses.
  • the distance between the laser light source and the photosensitive filler material to be hardened can be up to several hundred meters in length, which enables hardening even in machine locations or danger zones that are difficult to access, for example for purposes of explosion protection.
  • Expensive modules such as are provided in optical transfer systems, rotating parts or the like, can be saved.
  • the previous lifespan of the UV curing lamps is 500-2000h, maximum 3000h with permanently falling power, which must be checked constantly externally. With the laser light source, 10,000 hours are possible with the same output power.
  • An integrated, regulated system can be provided for internal energy monitoring and control. An internal performance measurement can be used as an average value to monitor long-term stability.
  • Very long light guides for example light guides with a length of up to several hundred meters, can be used to bring the UV laser light to the photosensitive filling material.
  • single-fiber optical fibers for example single-mode optical fibers, which have good flexibility and enable very good focusing of the UV laser light on the photosensitive filler material are used
  • the optical fiber used has a cross section of a few ⁇ m to several mm, which supports particularly high flexibility. This enables the placement of the UV laser system far away from the direct place of use at non-critical points. In this way, a thermal see, mechanical and electrical decoupling achieved from the application.
  • the use of such light guides also enables the UV laser light to be coupled in with the aid of standard coupling elements, for example also for coupling into vacuum systems and danger zones in which the photosensitive filler material to be cured is located.
  • a further development of the invention makes it possible, for example, that the curing process only begins when a certain performance limit has been exceeded.
  • the photosensitive filling material to be cured is cured in this way by means of preactivation, the preactivation likewise being able to be carried out using UV laser light or in some other way, for example by supplying thermal energy.
  • the punctual curing of small filler volumes is made possible.
  • Very high power surface densities can be achieved with a spectral width of the UV laser light of less than approximately 1 nm, for example 200 m W / mm 2 , which corresponds to 20 W / cm 2 .
  • This enables selective curing with defined spot sizes with a diameter of a few ⁇ m to a few mm.
  • This selective curing has the advantage that the adjacent filler materials are not subjected to any thermal, electrical or optical stress.
  • narrow-band laser beams can be used for the radiation, which address different species in the photosensitive filler material to be hardened, for example a combination of narrow-band laser light with a wavelength of 355nm and 532nm.
  • a 355nm / 10mW UV laser can be used as the laser light source, which is equipped with the necessary safety devices and a shutter.
  • the beam emerges via collimation optics with a preliminary working distance of around 50mm and a beam diameter of around 1 to 2mm.
  • the laser light with a wavelength of 532nm available in the laser system is only attenuated to the extent that laser class 2 is reached at the place of use and serves as a monitoring and device system, in particular for adjusting the irradiation device.
  • Figure 1 is a schematic representation of a curing device.
  • Fig. 2 is a schematic representation of a further curing device.
  • Fig. 1 shows a schematic representation of a curing device.
  • a diode-pumped 355 nm / 10 MW UV solid-state laser with a frequency conversion is used, which is equipped with the necessary safety devices and an electrical / electronic shutter.
  • the beam emerges preferably via a fiber coupler 2 with a standard fiber connection socket, for example an SMA plug (“Stright Medium Adapter”).
  • SMA plug Light Medium Adapter
  • the additional laser light with a wavelength of 532 nm available in the laser system 1 in the exemplary embodiment is not completely attenuated, but rather serves as a monitoring and setup system, in particular for adjusting the curing device. This further improves safety, since the wavelength-combined laser beam can also be recognized without a fluorescent agent.
  • FIG. 2 shows a schematic representation of a further curing device.
  • the same reference numerals as in FIG. 1 are used for the same features in FIG. 2.
  • a UV laser 1 is again provided. UV light generated by the UV laser 1 is coupled into a UV fiber 3 by means of a fiber coupler 2, which leads to a focusing optics 4. With the aid of a positioning device 6, the focusing optics 4 are displaced relative to the photosensitive filling material 5 to be hardened during irradiation, so that any surface patterns for hardening can be scanned in a targeted manner and with high accuracy.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

L'invention concerne un procédé pour durcir une matière de remplissage photosensible, en particulier une substance adhésive, ainsi qu'un dispositif de durcissement. Selon ledit procédé, une matière de remplissage photosensible à durcir est exposée à une lumière ultraviolette et une lumière ultraviolette laser à bande étroite est utilisée comme lumière ultraviolette pour l'irradiation de la matière de remplissage photosensible à durcir.
PCT/DE2005/000392 2004-03-05 2005-03-04 Procede pour durcir une matiere de remplissage photosensible et dispositif de durcissement WO2005085309A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112005001114T DE112005001114A5 (de) 2004-03-05 2005-03-04 Verfahren zum Aushärten eines photosensitiven Füllmaterials und Aushärtevorrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004011391 2004-03-05
DE102004011391.2 2004-03-05

Publications (2)

Publication Number Publication Date
WO2005085309A2 true WO2005085309A2 (fr) 2005-09-15
WO2005085309A3 WO2005085309A3 (fr) 2005-11-24

Family

ID=34917088

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2005/000392 WO2005085309A2 (fr) 2004-03-05 2005-03-04 Procede pour durcir une matiere de remplissage photosensible et dispositif de durcissement

Country Status (2)

Country Link
DE (1) DE112005001114A5 (fr)
WO (1) WO2005085309A2 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5360873A (en) * 1990-01-12 1994-11-01 Asahi Denka Kogyo K.K. Actinic radiation-reactive pressure-sensitive adhesive composition
DE19603962A1 (de) * 1996-01-26 1997-07-31 Emi Tec Elektronische Material Verfahren zur Herstellung eines Mehrleitungs-Verbinders
WO2003058677A2 (fr) * 2002-01-14 2003-07-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Systeme de production de circuits de commutation electriques et integres

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5360873A (en) * 1990-01-12 1994-11-01 Asahi Denka Kogyo K.K. Actinic radiation-reactive pressure-sensitive adhesive composition
DE19603962A1 (de) * 1996-01-26 1997-07-31 Emi Tec Elektronische Material Verfahren zur Herstellung eines Mehrleitungs-Verbinders
WO2003058677A2 (fr) * 2002-01-14 2003-07-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Systeme de production de circuits de commutation electriques et integres

Also Published As

Publication number Publication date
WO2005085309A3 (fr) 2005-11-24
DE112005001114A5 (de) 2007-05-24

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