EP0389804A2 - Process and device for preserving hollow spaces - Google Patents
Process and device for preserving hollow spaces Download PDFInfo
- Publication number
- EP0389804A2 EP0389804A2 EP90103602A EP90103602A EP0389804A2 EP 0389804 A2 EP0389804 A2 EP 0389804A2 EP 90103602 A EP90103602 A EP 90103602A EP 90103602 A EP90103602 A EP 90103602A EP 0389804 A2 EP0389804 A2 EP 0389804A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- wax
- nozzle
- compressed air
- heated
- tube
- 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.)
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Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
- B05B13/0627—Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
- B05B7/1606—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed the spraying of the material involving the use of an atomising fluid, e.g. air
- B05B7/1613—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed the spraying of the material involving the use of an atomising fluid, e.g. air comprising means for heating the atomising fluid before mixing with the material to be sprayed
- B05B7/1633—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed the spraying of the material involving the use of an atomising fluid, e.g. air comprising means for heating the atomising fluid before mixing with the material to be sprayed and heat being transferred from the material to be sprayed to the atomising fluid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
- B05B7/2489—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device
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- 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
- B05D7/22—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 internal surfaces, e.g. of tubes
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- 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
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- 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
- B05D2501/00—Varnish or unspecified clear coat
- B05D2501/10—Wax
Definitions
- the invention relates to a method for preserving cavities, in particular on automobile bodies, in which wax is applied to the inner walls of the cavity to be preserved by means of application nozzles.
- the invention further relates to a device for performing such a method.
- solvent-based waxes require a comparatively long curing time, and complex measures must be taken to keep the environmental impact of escaping solvents as small as possible.
- the flood wax process in which the cavities are poured out with solvent-free wax that has been liquefied by heating, the problem of overspray and environmental pollution is avoided, but the dripping associated with increased material consumption cannot be prevented here either, because flooding with high Excess material must be worked, which then drips off.
- the devices for the wax flooding process are complex, expensive and take up a lot of space.
- the object of the present invention is therefore to create a method for wax preservation of cavities, in particular on automobile bodies, which manages with as little material as possible, is environmentally friendly and nevertheless ensures rapid and perfect cavity preservation.
- Another object of the invention is a device for carrying out such a method, which is structurally simple, cost-saving and space-saving.
- the procedural solution to this problem results from the characterizing features of claim 1, the furnishing solution from the characterizing features of claim 5.
- the invention is a hot spraying process which manages with a comparatively low air pressure and without any solvent, which enables spraying to be carried out precisely in terms of quantity without polluting the environment.
- 10 denotes a wax supply tube which supplies hot, liquid wax from a - not shown - wax heater.
- the tube 10 is surrounded by an insulating jacket 11, preferably in the insulating jacket 11, or in the feed tube 10 itself, a trace heating, for example in the form of electrical heating wires, which ensures that the wax maintains its temperature.
- An externally controllable opening provided in the trace heating in the pipe 10 To-valve is designated by 12.
- the tube 10 opens with the interposition of a check valve 13 into a nozzle receiving body 14, a pre-atomizing nozzle 15 being inserted into the mouth.
- the pre-atomizing nozzle 15 is preferably designed and made of such a material as is known to the person skilled in the art from high-pressure or.
- High-pressure compressed air atomization process of painting technology is known.
- the reason for this is that the hot wax, as will be explained later, is supplied at a pressure which is comparable to the color printing in the painting processes mentioned.
- the pre-atomizing nozzle 15 is preceded by an outlet pipe 16, which, however, also still opens inside the interior of the nozzle receiving body 14, which is denoted by 14a.
- From the interior 14a there is an outlet 14b which is connected to a nozzle tube 20 which is screwed onto the nozzle receiving body 14 and has application nozzle openings 20a at its front end.
- a cavity to be preserved is indicated, the wall 21a of which has an insertion opening 21b for the nozzle tube 2u.
- the facility works as follows. Solid preservation wax is heated in a boiler to a temperature between 80 and 140 ° C., preferably 120 ° C., and the liquefied wax is placed under a pressure between 40 and 150 bar, preferably 100 bar. The liquid hot wax is then under this pressure on the closed valve 12, wherein the insulating jacket 11 and the trace heating ensure that the desired temperature is maintained. Compressed air is supplied via the feed pipe 17 and is present at the closed valve 18 under a pressure between 0.5 and 5 bar, preferably 3 bar. If the valve 18 is opened, the compressed air flows through the heater 19, in which it opens a temperature between 90 and 160 ° C, preferably 140 ° C is heated.
- the hot compressed air then flows into the interior 14a of the nozzle receiving body 14 and further into the nozzle tube 20, which it leaves through the nozzle openings 20a.
- the hot compressed air heats the interior 14a of the nozzle receiving body 14, which is also thermally insulated, and the interior of the tube 20. If the front end of the nozzle tube 20 is already in the cavity 21 to be preserved, then this is also heated. Now the valve 12 can be opened for the preservation process, so that the hot wax flows into the nozzle receiving body 14, where it is atomized by the pre-atomizing nozzle 15 and flows through the outlet pipe 16 in the atomized state.
- the compressed air flowing around the outlet pipe 16 produces an injector effect at its mouth and thus supports the conveyance of the hot wax droplets through the nozzle pipe 20; in particular after emerging from the nozzle openings 20a, the hot air serves as an energy carrier for the uniform transport of the hot wax droplets onto the wall 21a of the cavity 21.
- the hot wax is not subjected to cooling before it reaches the wall 21a of the cavity 21.
- Several factors contribute to this namely the insulation of the feed pipe 10 and its trace heating, the insulation of the nozzle receiving body 14 and possibly insulation of at least the rear part of the nozzle pipe 20, the heated compressed air and the preheating of the interior 14a and of the cavity 21 by the pre hot air supplied to the wax supply.
- the walls 21a of the cavity 21 are preheated, for example by radiators.
- a temperature of the walls 21a of 60 to 80 ° C., preferably 70 ° C. has proven to be expedient.
- the control of the valves should take place in such a way that the valve 18 is opened a certain time before the valve 12 because this is the best way to ensure that the wax droplets maintain their temperature.
- the procedure can be such that the valve 18 is continuously open while the assembly line is running, whereas the valve 12 is only opened for the so-called "wax shots”. This also ensures that wax still in the nozzle tube 20 after the “shot” does not adhere to the tube walls and can harden there.
- the radiators mentioned for heating the body are located at one point on the belt in front of the wax station.
- the device described can undergo numerous modifications without leaving the scope of the invention. It is essential that the wax is heated to a temperature necessary for its atomization and is kept at this temperature by the hot compressed air until precipitation on the hot body panel.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Coating Apparatus (AREA)
- Electrostatic Spraying Apparatus (AREA)
- Nozzles (AREA)
- Spray Control Apparatus (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Konservieren von Hohlräumen, insbesondere an Automobilkarossen, bei dem Wachs mittels Applikationsdüsen auf die Innenwände des zu konservierenden Hohlraums aufgebracht wird. Ferner betrifft die Erfindung eine Einrichtung zur Durchführung eines solchen Verfahrens.The invention relates to a method for preserving cavities, in particular on automobile bodies, in which wax is applied to the inner walls of the cavity to be preserved by means of application nozzles. The invention further relates to a device for performing such a method.
Bei der Hohlraumbehandlung von Automobilkarossen sind heute zwei Verfahren in Anwendung, nämlich das von mehreren Automobilherstellern eingesetzte Sprühverfahren und das beispielsweise in der DE-AS 27 55 947 beschriebene Flutverfahren. Beim Sprühverfahren wird Wachs mit einem Lösemittel verflüssigt und das flüssige Wachs-Lösemittel-Gemisch dann Sprühdüsen zugeführt, aus denen es unter Verwendung von Druckluft (Druckluft-Sprühverfahren) auf die Innenwände des zu konservierenden Hohlraums gesprüht wird. Um dieses Lösemittel-Wachs-Gemisch versprühen zu können, ist ein vergleichsweise hoher Luftdruck erforderlich, was dazu führt, daß es häufig zu einem sogenannten overspray kommt und außerdem nach dem Sprühvorgang ein Nachtropfen aus den Entlüftungsöffnungen des Hohlraums austritt. Außerdem erfordern lösemittelhaltige Wachse eine vergleichsweise lange Aushärtezeit, und es müssen aufwendige Vorkehrungen getroffen werden, um die Umweltbelastung durch entweichendes Lösemittel möglichst klein zu halten. Beim Flutwachsverfahren, bei dem die Hohlräume mit lösemittelfreiem, durch Erhitzen verflüssigtem Wachs ausgegossen werden, wird zwar das Problem des overspray und der Umweltbelastung vermieden, das mit einem erhöhten Materialverbrauch verbundene Nachtropfen kann jedoch auch hier nicht verhindert werden, weil beim Fluten mit hohem Materialüberschuß gearbeitet werden muß, der dann eben abtropft.Two methods are currently used in the cavity treatment of automobile bodies, namely the spraying method used by several automobile manufacturers and the flooding method described, for example, in DE-AS 27 55 947. In the spraying process, wax is liquefied with a solvent and the liquid wax-solvent mixture is then fed to spray nozzles, from which it is sprayed onto the inner walls of the cavity to be preserved using compressed air (compressed air spraying process). In order to be able to spray this solvent-wax mixture, a comparatively high air pressure is necessary, which leads to what is known as an overspray and, after the spraying process, dripping from the vents in the cavity. In addition, solvent-based waxes require a comparatively long curing time, and complex measures must be taken to keep the environmental impact of escaping solvents as small as possible. With the flood wax process, in which the cavities are poured out with solvent-free wax that has been liquefied by heating, the problem of overspray and environmental pollution is avoided, but the dripping associated with increased material consumption cannot be prevented here either, because flooding with high Excess material must be worked, which then drips off.
Darüberhinaus sind die Einrichtungen für das Wachsflutverfahren aufwendig, teuer und benötigen viel Platz.In addition, the devices for the wax flooding process are complex, expensive and take up a lot of space.
Aufgabe der vorliegenden Erfindung ist es deshalb, ein Verfahren zur Wachskonservierung von Hohlräumen, insbesondere an Automobilkarossen, zu schaffen, das mit möglichst wenig Material auskommt, umweltfreundlich ist und trotzdem eine schnelle und einwandfreie Hohlraumkonservierung gewährleistet. Weiterhin ist Aufgabe der Erfindung eine Einrichtung zur Durchführung eines solchen Verfahrens, die konstruktiv einfach, kostensparend und platzsparend ist. Die verfahrensmäßige Lösung dieser Aufgabe ergibt sich aus den kennzeichnenden Merkmalen des Patentanspruchs 1, die einrichtungsmäßige Lösung aus den kennzeichnenden Merkmalen des Patentanspruchs 5.The object of the present invention is therefore to create a method for wax preservation of cavities, in particular on automobile bodies, which manages with as little material as possible, is environmentally friendly and nevertheless ensures rapid and perfect cavity preservation. Another object of the invention is a device for carrying out such a method, which is structurally simple, cost-saving and space-saving. The procedural solution to this problem results from the characterizing features of claim 1, the furnishing solution from the characterizing features of claim 5.
Kurz gesagt handelt es sich also bei der Erfindung um ein Heiß-Sprühverfahren, das mit vergleichsweise geringem Luftdruck und ohne jegliches Lösemittel auskommt, womit ein mengenmäßig exakt dosierbares Sprühen ohne Umweltbelastung ermöglicht wird.In short, the invention is a hot spraying process which manages with a comparatively low air pressure and without any solvent, which enables spraying to be carried out precisely in terms of quantity without polluting the environment.
Die Erfindung wird nachfolgend anhand der Zeichnung näher erläutert, wobei die einzige Figur eine Schemaskizze der erfindungsgemäßen Einrichtung darstellt.The invention is explained in more detail below with reference to the drawing, the single figure representing a schematic sketch of the device according to the invention.
Auf der Zeichnung ist mit 10 ein Wachs-Zuführrohr bezeichnet, welches heißes, flüssiges Wachs von einem - nicht gezeichneten - Wachserhitzer zuführt. Das Rohr 10 ist von einem Isoliermantel 11 umgeben, wobei vorzugsweise im Isoliermantel 11, oder im Zuführrohr 10 selbst, eine Begleitheizung, etwa in Form elektrischer Heizdrähte vorgesehen ist, die dafür sorgt, daß das Wachs seine Temperatur beibehält. Ein innerhalb der Begleitheizung im Rohr 10 vorgesehenes, von außen steuerbares Auf- Zu-Ventil ist mit 12 bezeichnet. Das Rohr 10 mündet unter Zwischenschaltung eines Rückschlagventils 13 in einen Düsenaufnahmekörper 14, wobei in die Mündung eine Vorzerstäuberdüse 15 eingesetzt ist. Die Vorzerstäuberdüse 15 ist vorzugsweise so ausgebildet und aus einem solchen Material, wie dies dem Fachmann vom Hochdruck-bzw. Hochdruck-Druckluft-Zerstäubungsverfahren der Lackiertechnik her bekannt ist. Der Grund dafür ist, daß das Heißwachs, wie später noch erläutert werden wird, mit einem Druck zugeführt wird, der vergleichbar dem Farbdruck bei den erwähnten Lackierverfahren ist. Der Vorzerstäuberdüse 15 vorgeschaltet ist ein Austrittsrohr 16, das aber ebenfalls noch innerhalb des mit 14a bezeichneten Innenraums des Düsenaufnahmekörpers 14 mündet. In diesen Innenraum 14a mündet außerdem eine von einer - nicht gezeichneten - Druckluftquelle herführende Druckluftleitung 17 in die ein von außen steuerbares Auf-Zu-Ventil 18 sowie ein Lufterhitzer 19 eingeschaltet sind. Vom Innenraum 14a geht ein Auslaß 14b ab, der mit einem auf den Düsenaufnahmekörper 14 aufgeschraubten Düsenrohr 20 in Verbindung steht, das an seinem Vorderende Applikations-Düsenöffnungen 20a aufweist. Bei 21 ist ein zu konservierender Hohlraum angedeutet, dessen Wandung 21a eine Einstecköffnung 21b für das Düsenrohr 2u besitzt.In the drawing, 10 denotes a wax supply tube which supplies hot, liquid wax from a - not shown - wax heater. The
Die Einrichtung arbeitet folgendermaßen. Festes Konservierungswachs wird in einem Heizkessel auf eine Temperatur zwischen 80 und 140°C, vorzugsweise 120°C, erhitzt und das verflüssigte Wachs unter einen Druck zwischen 40 und 150 bar, vorzugsweise 100 bar, gesetzt. Das flüssige Heißwachs liegt dann unter diesem Druck an dem geschlossenen Ventil 12 an, wobei durch den Isoliermantel 11 und die Begleitheizung sichergestellt wird, daß die gewünschte Temperatur aufrechterhalten bleibt. Über das Zuführrohr 17 wird Druckluft zugeführt, das am geschlossenen Ventil 18 unter einem Druck zwischen 0,5 und 5 bar, vorzugweise 3 bar, anliegt. Wird das Ventil 18 geöffnet, dann strömt die Druckluft durch den Erhitzer 19, in welchem sie auf eine Temperature zwischen 90 und 160°C, vorzugsweise 140°C erhitzt wird. Die heiße Druckluft strömt dann in den Innenraum 14a des Düsenaufnahmekörpers 14 und weiter in das Düsenrohr 20, welches es durch die Düsenöffnungen 20a verläßt. Durch die heiße Druckluft wird der Innenraum 14a des Düsenaufnahmekörpers 14, der darüberhinaus wärmeisoliert ist, sowie der Innenraum des Rohrs 20 erwärmt. Befindet sich das Vorderende des Düsenrohrs 20 bereits im zu konservierenden Hohlraum 21, dann wird auch dieser erwärmt. Nunmehr kann für den Konservierungsvorgang das Ventil 12 geöffnet werden, so daß das heiße Wachs in den Düsenaufnahmekörper 14 strömt, wo es durch die Vorzerstäuberdüse 15 zerstäubt wird und im zerstäubten Zustand durch das Austrittsrohr 16 strömt. Im Austrittsrohr 16 erfolgt eine Beruhigung und Verlangsamung des Sprühstrahles, wobei dann die das Austrittsrohr 16 umströmende Druckluft an dessen Mündung eine Injektorwirkung erzeugt und damit die Förderung der Heißwachströpfchen durch das Düsenrohr 20 hindurch unterstützt; insbesondere nach Austreten aus den Düsenöffnungen 20a dient die Heißluft als Energieträger für den gleichmäßigen Transport der Heißwachströpfchen auf die Wandung 21a des Hohlraums 21.The facility works as follows. Solid preservation wax is heated in a boiler to a temperature between 80 and 140 ° C., preferably 120 ° C., and the liquefied wax is placed under a pressure between 40 and 150 bar, preferably 100 bar. The liquid hot wax is then under this pressure on the closed
Von wesentlicher Bedeutung ist, daß das Heißwachs keiner Abkühlung unterworfen wird, bevor es die Wandung 21a des Hohlraums 21 erreicht. Dazu tragen mehrere Faktoren bei, nämlich die Isolierung des Zuführrohrs 10 und dessen Begleitheizung, die Isolierung des Düsenaufnahmekörpers 14 und gegebenenfalls eine Isolierung zumindest des hinteren Teils des Düsenrohrs 20, die erhitzte Druckluft und die Vorerwärmung des Innenraums 14a sowie des Hohlraums 21 durch die bereits vor der Wachszufuhr zugeführte Heißluft. Besonders zweckmäßig ist es dabei, wenn, was an sich vom Flutwachsverfahren her bekannt ist, die Wände 21a des Hohlraums 21 vorerwärmt werden, beispielsweise durch Strahler. Als zweckmäßig hat sich dabei im Rahmen der Erfindung eine Temperatur der Wände 21a von 60 bis 80°C, vorzugsweise 70°C, erwiesen.It is essential that the hot wax is not subjected to cooling before it reaches the
Wie erwähnt soll die Steuerung der Ventile so erfolgen, daß das Ventil 18 bereits eine bestimmte Zeitspanne vor dem Ventil 12 geöffnet wird, weil damit am besten sichergestellt wird, daß die Wachströpfchen ihre Temperature beibehalten. Bei der üblichen Fließband-Konservierung von Automobilkarossen kann so vorgegangen werden, daß bei laufendem Fließband das Ventil 18 dauernd offen ist, wohingegen das Ventil 12 nur für die sogenannten "Wachs-Schüsse" geöffnet wird. Damit wird auch sichergestellt, daß sich nach dem "Schuß" noch im Düsenrohr 20 befindliches Wachs nicht an den Rohrwandungen festsetzen und dort erhärten kann. Die erwähnten Strahler für die Erwärmung der Karosserie befinden sich an einer Stelle des Bandes vor der Wachs-Station.As mentioned, the control of the valves should take place in such a way that the
Die beschriebene Einrichtung kann zahlreiche Abwandlungen erfahren, ohne den Bereich der Erfindung zu verlassen. Wesentlich ist, daß das Wachs auf eine für seine Zerstäubung erforderliche Temperatur erhitzt und durch die heiße Druckluft auf dieser Temperatur bis zum Niederschlag auf dem heißen Karosserieblech gehalten wird.The device described can undergo numerous modifications without leaving the scope of the invention. It is essential that the wax is heated to a temperature necessary for its atomization and is kept at this temperature by the hot compressed air until precipitation on the hot body panel.
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE3910179 | 1989-03-29 | ||
DE3910179A DE3910179C1 (en) | 1989-03-29 | 1989-03-29 |
Publications (2)
Publication Number | Publication Date |
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EP0389804A2 true EP0389804A2 (en) | 1990-10-03 |
EP0389804A3 EP0389804A3 (en) | 1991-07-31 |
Family
ID=6377390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19900103602 Withdrawn EP0389804A3 (en) | 1989-03-29 | 1990-02-23 | Process and device for preserving hollow spaces |
Country Status (4)
Country | Link |
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US (1) | US5066518A (en) |
EP (1) | EP0389804A3 (en) |
JP (1) | JPH02280867A (en) |
DE (1) | DE3910179C1 (en) |
Cited By (2)
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EP0554707A1 (en) * | 1992-01-21 | 1993-08-11 | Soremartec S.A. | Device and method of applying coatings of flowable substances |
CN104353577A (en) * | 2014-11-14 | 2015-02-18 | 四川省西南建安防腐工程有限公司 | Spray gun for inner repaired mouths of pipelines and construction method |
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US5304396A (en) * | 1991-11-04 | 1994-04-19 | Vernon Auten | Method for sealing cable conduits |
DE4201592A1 (en) * | 1992-01-22 | 1993-07-29 | Johann Gehrig | Preservation of hollow machine components - involves immersing components in solvent-free agent and drying with gas, avoids use of CFC's |
DE4217770A1 (en) * | 1992-05-29 | 1993-12-02 | Audi Ag | Method for treating bearer screw pressure springs in road vehicles - includes application of paint coating and additional solvent-free wax coating |
DE4323196A1 (en) * | 1993-06-30 | 1995-01-12 | Esta Ag | High pressure sprayer for hard wax |
US5658613A (en) * | 1995-01-27 | 1997-08-19 | Technology Licensing Company | Hot melt fluidized cladding of innerduct liner |
US5505992A (en) * | 1995-01-27 | 1996-04-09 | Technology Licensing Company | Hot melt spray cladding of innerduct liner |
DE19541907A1 (en) * | 1995-11-10 | 1997-05-15 | Herberts Gmbh | Process for the production of wax-like and / or bitumen-like coatings on electrically conductive surfaces |
US5861191A (en) * | 1996-02-26 | 1999-01-19 | Technology Licensing Company | Bacteriostatic coating of polymeric conduit |
DE10322170A1 (en) | 2003-05-16 | 2004-12-09 | Dürr Systems GmbH | Cavity preservation device and pre-atomizer |
DE10335746A1 (en) * | 2003-08-05 | 2005-03-03 | Volkswagen Ag | Anti-corrosion preserving process for hollow cavities in vehicle manufacture uses liquid wax-containing preservative which is foamed up by processing gas on entering cavity and is spread out inside same |
DE102009052089A1 (en) | 2009-11-05 | 2010-06-17 | Daimler Ag | Device for conserving cavities in automobile body, has reducer provided in area of connection for strongly reducing cross section of line of specific length, where reducer is fixed in connection by press fit, sticking, or welding process |
US20130320625A1 (en) * | 2012-05-30 | 2013-12-05 | Micromatic Llc | Insertion apparatus |
US9610611B2 (en) * | 2014-02-12 | 2017-04-04 | Baker Hughes Incorporated | Method of lining an inner surface of a tubular and system for doing same |
DE102014211259A1 (en) * | 2014-06-12 | 2015-12-31 | IPR-Intelligente Peripherien für Roboter GmbH | A method for cavity preservation of a cavity of a vehicle body and apparatus therefor |
US20180326321A1 (en) * | 2015-06-08 | 2018-11-15 | Michael J. Hochbrueckner | Device, system, and method for atomizer nozzle assembly |
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US2401504A (en) * | 1943-12-04 | 1946-06-04 | Jens A Paasche | Airbrush device |
US2576942A (en) * | 1948-07-06 | 1951-12-04 | American Can Co | Apparatus for the continuous spraying of individual container bodies |
BE674434A (en) * | 1964-12-29 | 1966-06-28 |
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US3488213A (en) * | 1965-05-20 | 1970-01-06 | Schlitz Brewing Co J | Method and apparatus for applying a coating to the interior surface of a hollow article |
SE422282B (en) * | 1975-12-18 | 1982-03-01 | Atlas Copco Ab | SPRAY GUN |
DE2755947C3 (en) * | 1977-12-15 | 1980-12-18 | Volkswagenwerk Ag, 3180 Wolfsburg | Method and system for applying a layer of a corrosion-preventing material |
US4263338A (en) * | 1979-07-11 | 1981-04-21 | American Can Company | Hot spray |
JPS56161870A (en) * | 1980-05-14 | 1981-12-12 | Sumitomo Light Metal Ind Ltd | Method and apparatus for coating long pipe having small diameter |
DE3020764C2 (en) * | 1980-05-31 | 1984-05-17 | Kollross, Günter, 6080 Groß-Gerau | Method and device for the inside oiling of tubular packaging material |
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1989
- 1989-03-29 DE DE3910179A patent/DE3910179C1/de not_active Expired - Fee Related
-
1990
- 1990-02-23 EP EP19900103602 patent/EP0389804A3/en not_active Withdrawn
- 1990-03-06 US US07/490,840 patent/US5066518A/en not_active Expired - Fee Related
- 1990-03-27 JP JP2078594A patent/JPH02280867A/en active Pending
Patent Citations (3)
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US2401504A (en) * | 1943-12-04 | 1946-06-04 | Jens A Paasche | Airbrush device |
US2576942A (en) * | 1948-07-06 | 1951-12-04 | American Can Co | Apparatus for the continuous spraying of individual container bodies |
BE674434A (en) * | 1964-12-29 | 1966-06-28 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0554707A1 (en) * | 1992-01-21 | 1993-08-11 | Soremartec S.A. | Device and method of applying coatings of flowable substances |
US5370734A (en) * | 1992-01-21 | 1994-12-06 | Soremartec S.A. | Device for applying coatings starting from flowable substances |
US5480664A (en) * | 1992-01-21 | 1996-01-02 | Soremartec S.A. | Method for applying coatings starting from flowable substances |
CN1047964C (en) * | 1992-01-21 | 2000-01-05 | 索雷马特克有限公司 | Device and method for applying coatings starting from flowable substances |
CN104353577A (en) * | 2014-11-14 | 2015-02-18 | 四川省西南建安防腐工程有限公司 | Spray gun for inner repaired mouths of pipelines and construction method |
Also Published As
Publication number | Publication date |
---|---|
JPH02280867A (en) | 1990-11-16 |
US5066518A (en) | 1991-11-19 |
DE3910179C1 (en) | 1990-03-29 |
EP0389804A3 (en) | 1991-07-31 |
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