EP0656514B1 - Verfahren und Einrichtung zum Trocknen von Lack- und Grundmaterialschichten - Google Patents
Verfahren und Einrichtung zum Trocknen von Lack- und Grundmaterialschichten Download PDFInfo
- Publication number
- EP0656514B1 EP0656514B1 EP94890192A EP94890192A EP0656514B1 EP 0656514 B1 EP0656514 B1 EP 0656514B1 EP 94890192 A EP94890192 A EP 94890192A EP 94890192 A EP94890192 A EP 94890192A EP 0656514 B1 EP0656514 B1 EP 0656514B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- infrared radiator
- air stream
- infrared
- coating
- producing
- 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
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Classifications
-
- 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 with the features of introductory part of claim 1.
- EP-A-0 348 882 discloses a device for drying water-soluble Varnishes for the production of test pieces for the Quality inspection described. It is in one with one Infrared heating source chamber introduced air from below and subtracted up. The air flow is therefore in the aligned essentially transverse to the direction of the infrared radiation.
- the invention has for its object that from GB-A 673 956 known methods so that the drying and / or curing water-dilutable coating systems, especially of paint and base material essentially accelerates and improves without increasing the energy requirement becomes.
- the invention consists essentially in that the procedural steps of the characterizing part of claim 1.
- the air flow (or air flows) is approximately aligned perpendicular to the direction of the infrared rays the removal of water vapor molecules is improved. This advantage also occurs when neither the subject still the infrared radiator and the blowing nozzles are moved what makes the invention also suitable for refinishing.
- the intensity of the air flow and the intensity of the heat input via the infrared heater (s) during drying and / or curing is changed independently of one another.
- the procedure is, for example, that after application a first layer of high performance coating (e.g. the highest performance) of the fan and reduced Power of the infrared radiator is worked. After one others, e.g. the second layer of the coating to be produced was applied, the performance of the fan can be reduced to one higher, e.g. increased to its greatest performance and performance of the infrared radiator to a fraction of its maximum possible performance can be reduced.
- the invention provides a device with which the process of invention is advantageously carried out can be.
- the fans or blowers are arranged so that they one Generate airflow that is substantially perpendicular to the Direction of the infrared radiation and the for example, about 200 to 300 mm wide space from the Surface of the infrared beam and the object with the to drying and / or curing coating limited is flowed through.
- the air flow causes evaporated water to be removed during the curing and / or drying process in that Air with high humidity constantly through air with low humidity is replaced, which is essential in comparison to EP-A 203 377 is more effective because the air flow is essentially parallel is aligned to the infrared radiator and the space between strikethrough the object and the infrared emitter.
- the coating to be dried heat by infrared radiation fed and at the same time with the air flow at the Evaporating water molecules surface of the coating effective derived.
- the invention works in such a way that the Airflow in the space between the infrared heater and the Object on which to dry and / or harden Coating is applied from top to bottom or horizontally aligns.
- FIG. 1 shows the example of a two-layer Orders of filler material with a total thickness of 120 ⁇ the process flow during drying and curing after method according to the invention. That is on the vertical axis Time in minutes and on the horizontal axis of the chart the power output is plotted in% of the maximum power (100%).
- the solid line shows the power output of the infrared radiator and the dashed line the course the output power of the blower (fan), which is an embodiment may have according to one of FIGS. 2 to 6 again.
- the infrared radiator 1 the contour of the object on which a coating (e.g. filler or paint) to dry on an aqueous basis and / or is to be hardened, aligned or set up appropriately will.
- a coating e.g. filler or paint
- Infrared heater 1 is a fan in the manner of a tangential fan 5 is provided, which is housed in a housing 6.
- a grid 7th covered air intake opening provided at the rear of the housing 6 .
- the exit opening 8 of the housing 6 is directed downwards and preferably with a filter.
- Fig. 7 shows a diagram with the process flow for the Drying and curing a topcoat in two layers is applied.
- Fig. 9 shows the process flow during drying and Curing filler compound according to the invention Method.
- the devices according to the invention are a controller can own in which the most favorable process flow for various coating systems and types of coating (especially the thickness of the coating) is, so that the required or desired process flow for example by pressing a corresponding key or Enter an appropriate code or password can be accessed. This also ensures that the drying and curing each optimally the regulations adapted by the manufacturer of the coating system becomes.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
- Manufacturing Of Printed Wiring (AREA)
Description
Claims (8)
- Verfahren zum Trocknen und/oder Aushärten von wasserverdünnbaren Beschichtungen, wie Lack- oder Grundmaterialsystemen, bei dem Wärme durch Infrarotstrahlung zugeführt wird und in dem Raum zwischen dem wenigstens einen Infrarotstrahler und dem Gegenstand, auf dem die zu trocknende und/oder auszuhärtende Beschichtung aufgetragen ist, ein Luftstrom, der zur Richtung der Infrarotstrahlung im wesentlichen im rechten Winkel ausgerichtet ist, mit einer Strömungsrichtung von oben nach unten oder horizontal erzeugt wird, dadurch gekennzeichnet, daß in einem ersten Verfahrensabschnitt eine erste Schicht der zu erzeugenden Beschichtung aufgetragen wird und die Leistung des Gebläses, das den Luftstrom erzeugt, höher gewählt wird als in einem zweiten oder folgenden Verfahrensabschnitt, in dem eine zweite oder weitere Schicht der Beschichtung aufgetragen wird, und daß im ersten Verfahrensabschnitt die abgegebene Leistung des Infrarot-strahlers geringer gewählt wird als im zweiten oder folgenden Verfahrensabschnitt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß Wärme mit Hilfe von wenigstens einem Infrarotstrahler zugeführt wird.
- Einrichtung zum Durchführen des Verfahrens nach Anspruch 1 oder 2, mit wenigstens einem Infrarotstrahler (1), und mit wenigstens einer Vorrichtung (2, 5, 10, 15) zum Erzeugen eines Luftstromes zwischen dem Infrarotstrahler (1) und dem Gegenstand, auf dem die zu trocknende und/oder auszuhärtende Beschichtung aufgetragen ist, wobei die Austrittsöffnung (8) für den von der Vorrichtung (2, 5, 10, 15) erzeugten Luftstrom an der Vorderseite des Infrarot-strahlers (1) angeordnet und im wesentlichen quer zur Ebene des Infrarotstrahlers (1) ausgerichtet ist, dadurch gekennzeichnet, daß die Vorrichtung (2, 5, 10, 15) zum Erzeugen eines Luftstromes an wenigstens einem Rand des Infrarotstrahlers (1) vorgesehen ist, daß die Leistung des Infrarotstrahlers (1) und der Vorrichtung (2, 5, 10, 15) zum Erzeugen des Luftstromes veränderbar ist und daß Verläufe der Änderungen der Leistung des Infrarotstrahlers (1) und/oder der Vorrichtung (2, 5, 10, 15) zum Erzeugen des Luftstromes gespeichert und wahlweise abrufbar sind.
- Einrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Vorrichtung (2, 5, 10, 15) zum Erzeugen des Luftstromes am in der Gebrauchslage oberen und/oder an einem seitlichen Rand des Infrarotstrahlers (1) angeordnet ist.
- Einrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die Vorrichtung (2, 5, 10, 15) zum Erzeugen des Luftstromes ein Gebläse (2, 5, 10) ist.
- Einrichtung nach einem der Ansprüche 3 oder 4, dadurch gekennzeichnet, daß die Vorrichtung (2, 5, 10, 15) zum Erzeugen des Luftstromes eine mit Druckluft betriebene Ejektordüse (15) ist.
- Einrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß das Gebläse (2, 5, 10) oder die Ejektordüse (15) gegenüber dem Infrarotstrahler (1) verschwenkbar ist.
- Einrichtung nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, daß der Luft-Eintrittsöffnung und vorzugsweise der Luft-Austrittssöffnung des Gebläses (2, 5, 10) oder der Ejektordüse (15) ein Filter (9) zugeordnet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT2437/93 | 1993-12-01 | ||
AT0243793A AT403518B (de) | 1993-12-01 | 1993-12-01 | Verfahren und einrichtung zum trocknen und/oder aushärten von beschichtungen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0656514A1 EP0656514A1 (de) | 1995-06-07 |
EP0656514B1 true EP0656514B1 (de) | 1998-06-17 |
Family
ID=3534340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94890192A Expired - Lifetime EP0656514B1 (de) | 1993-12-01 | 1994-11-22 | Verfahren und Einrichtung zum Trocknen von Lack- und Grundmaterialschichten |
Country Status (5)
Country | Link |
---|---|
US (1) | US5623770A (de) |
EP (1) | EP0656514B1 (de) |
AT (2) | AT403518B (de) |
DE (2) | DE9417356U1 (de) |
WO (1) | WO1995015471A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE503423C2 (sv) * | 1994-09-09 | 1996-06-10 | Drester Ab | Mobil, infraröd färghärdningsanordning |
DE19857045C2 (de) * | 1998-12-10 | 2001-02-01 | Industrieservis Ges Fuer Innov | Beschichtung von Gegenständen |
WO2001034864A2 (de) * | 1999-11-11 | 2001-05-17 | Smart Reflow Gmbh | Konvektionsmodul mit pneumatischem antrieb |
DE102005001683B4 (de) * | 2005-01-13 | 2010-01-14 | Venjakob Maschinenbau Gmbh & Co. Kg | Verfahren und Vorrichtung zum Trocknen von Lackschichten |
EP2466237B1 (de) * | 2010-12-15 | 2016-06-15 | Heinz-Glas GmbH & Co. KGaA | Infrarot-Trocknungsanlage |
DE102015205338A1 (de) | 2015-03-24 | 2016-09-29 | Cefla Deutschland Gmbh | Trocknungsvorrichtung |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB673956A (en) * | 1949-03-22 | 1952-06-18 | Baker Perkins Ltd | Improvements in and relating to infra-red radiation dryers |
US3228113A (en) * | 1960-08-18 | 1966-01-11 | John J Fannon Products Co | Heating apparatus and method |
US3554502A (en) * | 1968-05-15 | 1971-01-12 | Goodyear Tire & Rubber | Dryer or heater |
US3932114A (en) * | 1971-12-13 | 1976-01-13 | Ebert Edward A | Device for heating thermoplastic eyeglass frames |
US4327665A (en) * | 1979-07-26 | 1982-05-04 | Clemens Arrasmith | Method and apparatus for coating composition on can seams |
DE3515600C1 (de) * | 1985-04-30 | 1986-10-09 | Bayerische Motoren Werke AG, 8000 München | Blastunnel zum Trocknen von lackierten Werkstuecken |
US4771728A (en) * | 1986-09-08 | 1988-09-20 | Bgk Finishing Systems, Inc. | Automotive coating treatment apparatus |
DE3821848C1 (de) * | 1988-06-29 | 1989-02-16 | Herberts Gmbh, 5600 Wuppertal, De | |
US5263265A (en) * | 1989-10-23 | 1993-11-23 | Despatch Industries | Convection/radiation material treatment oven |
US5319861A (en) * | 1990-11-16 | 1994-06-14 | Setsuo Tate | Drying method and device for coated layer |
EP0495770B1 (de) * | 1991-01-16 | 1995-07-12 | Friedrich Hoffmann | Infrarotstrahler |
-
1993
- 1993-12-01 AT AT0243793A patent/AT403518B/de not_active IP Right Cessation
-
1994
- 1994-10-28 DE DE9417356U patent/DE9417356U1/de not_active Expired - Lifetime
- 1994-11-22 DE DE59406269T patent/DE59406269D1/de not_active Expired - Fee Related
- 1994-11-22 EP EP94890192A patent/EP0656514B1/de not_active Expired - Lifetime
- 1994-11-22 AT AT94890192T patent/ATE167565T1/de not_active IP Right Cessation
- 1994-11-30 US US08/352,673 patent/US5623770A/en not_active Expired - Fee Related
- 1994-11-30 WO PCT/AT1994/000180 patent/WO1995015471A1/de active Search and Examination
Also Published As
Publication number | Publication date |
---|---|
WO1995015471A1 (de) | 1995-06-08 |
DE9417356U1 (de) | 1995-03-16 |
DE59406269D1 (de) | 1998-07-23 |
US5623770A (en) | 1997-04-29 |
AT403518B (de) | 1998-03-25 |
EP0656514A1 (de) | 1995-06-07 |
ATA243793A (de) | 1997-07-15 |
ATE167565T1 (de) | 1998-07-15 |
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