DE10014240A1 - Plastic fuel tank for automobiles which virtually eliminates fuel permeation, is internally coated - Google Patents
Plastic fuel tank for automobiles which virtually eliminates fuel permeation, is internally coatedInfo
- Publication number
- DE10014240A1 DE10014240A1 DE2000114240 DE10014240A DE10014240A1 DE 10014240 A1 DE10014240 A1 DE 10014240A1 DE 2000114240 DE2000114240 DE 2000114240 DE 10014240 A DE10014240 A DE 10014240A DE 10014240 A1 DE10014240 A1 DE 10014240A1
- Authority
- DE
- Germany
- Prior art keywords
- plastic
- plastic container
- fuel
- ferrous metals
- metallization
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/20—Metallic material, boron or silicon on organic substrates
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/02—Pretreatment of the material to be coated
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/04—Coating on selected surface areas, e.g. using masks
- C23C14/046—Coating cavities or hollow spaces, e.g. interior of tubes; Infiltration of porous substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/03177—Fuel tanks made of non-metallic material, e.g. plastics, or of a combination of non-metallic and metallic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K2015/03032—Manufacturing of fuel tanks
- B60K2015/03039—Manufacturing of fuel tanks made of a combination of non metallic and metallic materials
Abstract
Description
Die vorliegende Erfindung betrifft einen Kraftstoffbehälter für Kraftstoff und ein Verfahren zu seiner Herstellung.The present invention relates to a fuel tank for fuel and a Process for its manufacture.
In der Automobilindustrie werden Kunststoffbehälter für die Befüllung mit Kraftstoff zum Einbau in Automobile verwendet. Ein wesentlicher Nachteil dieser Kunststoffbehälter besteht darin, dass die Bestandteile des Kraftstoffes durch das Kunststoffmaterial hindurchdiffundieren. Das führt im allgemeinen dazu, dass der Permeationsgrenzwert, der an das Gesamtsystem KKB (Kunststoff-Kraftstoff-Behälter) bzw. Fahrzeug gestellt wird, nicht eingehalten werden kann.In the automotive industry, plastic containers are used for filling with fuel Used in automobiles. A major disadvantage of this plastic container is that the components of the fuel through the plastic material diffuse through. This generally means that the permeation limit, which is placed on the overall system KKB (plastic fuel tank) or vehicle will not be met.
Es ist daher Aufgabe der vorliegenden Erfindung, einen Kunststoffbehälter für Kraftstoff zur Verfügung zu stellen, der gegenüber den Bestandteilen des Kraftstoffs eine Sperrwirkung hat und somit die Permeation reduziert.It is therefore an object of the present invention to provide a plastic container for fuel to provide the one compared to the components of the fuel Has a blocking effect and thus reduces permeation.
Es ist weiterhin Aufgabe der vorliegenden Erfindung, ein Verfahren anzugeben, mit dem ein gegen die Permeation von Kraftstoffen beständiger Kunststoffbehälter hergestellt wird.It is also an object of the present invention to provide a method with which a plastic container resistant to the permeation of fuels becomes.
Die Aufgabe der vorliegenden Erfindung wird durch einen Kunststoffbehälter für Kraftstoff gemäß Patentanspruch 1 gelöst.The object of the present invention is achieved by a plastic container for Fuel solved according to claim 1.
Die vorliegende Erfindung betrifft einen Kunststoffbehälter für Kraftstoffe, der im Inneren beschichtet ist.The present invention relates to a plastic container for fuel inside is coated.
Die Unteransprüche betreffen bevorzugte Ausführungsformen des erfindungsgemäßen Kunststoffbehälters.The subclaims relate to preferred embodiments of the invention Plastic container.
Die weitere Aufgabe der vorliegenden Erfindung wird durch ein Verfahren gemäß Patentanspruch 5 gelöst. The further object of the present invention is achieved by a method according to Claim 5 solved.
Das erfindungsgemäße Verfahren zur Herstellung des Kunststoffbehälters ist dadurch gekennzeichnet, dass eine Innenbeschichtung des Kunststoffbehälters für Kraftstoff durch Metallisieren im Hochvakuum durchgeführt wird.The process according to the invention for producing the plastic container is thereby characterized that an inner coating of the plastic container for fuel is carried out by metallization in a high vacuum.
Die Unteransprüche betreffen bevorzugte Ausführungsformen des erfindungsgemäßen Verfahrens.The subclaims relate to preferred embodiments of the invention Procedure.
Es ist erfindungsgemäß festgestellt worden, dass die Permeation von Kraftstoffen durch die Wände von Kunststoffbehältern verhindert werden kann, wenn diese beschichtet sind. In einer bevorzugten Ausführungsform ist die Beschichtung an der Innenseite eine Metallbeschichtung.It has been found according to the invention that the permeation of fuels by the walls of plastic containers can be prevented if coated are. In a preferred embodiment, the coating on the inside is a Metal coating.
Als Metalle kommen solche in Frage, die aus Eisenmetallen, Nichteisenmetallen oder Legierungen daraus gebildet sind. Beispielsweise sind Metallbeschichtungen aus Aluminium, Kupfer, Nickel oder Legierungen davon geeignet.Suitable metals are those which consist of ferrous metals, non-ferrous metals or Alloys are formed from it. For example, metal coatings are made of Aluminum, copper, nickel or alloys thereof are suitable.
Die Schichtdicke ist von der Art der Metallbeschichtung abhängig. In der Regel beträgt die Schichtdicke 0,1-1,0 µm. Sie kann aber auch in einem Bereich liegen, der sich oberhalb der Obergrenze bewegt.The layer thickness depends on the type of metal coating. Usually amounts to the layer thickness 0.1-1.0 µm. But it can also be in a range that is moved above the upper limit.
Der Kunststoffbehälter kann durch Metallisieren im Hochvakuum hergestellt werden, wenn im Innern des Kunststoffbehälters eine Metallbeschichtung vorgesehen ist. Durch das Aufdampfen von Metallen und/oder Metalllegierungen auf die Kunststoffoberfläche wird eine Metallschicht auf den Kunststoff aufgebracht. Diese Metallschicht erzeugt eine Sperrschicht gegenüber dem Kraftstoff und verringert erheblich bzw. vermindert die Permeation von Inhaltsstoffen des Kraftstoffes.The plastic container can be made by metallizing in a high vacuum, if a metal coating is provided inside the plastic container. By the vapor deposition of metals and / or metal alloys on the plastic surface a metal layer is applied to the plastic. This metal layer creates one Barrier layer against the fuel and significantly reduces or reduces the Permeation of fuel components.
Es ist darauf zu achten, dass der Oberflächenzustand des Kunststoffbehälters gewisse Anforderungen erfüllt. Für das Bedampfen von Kunststoffoberflächen im Vakuum ist eine saubere Oberfläche notwendig. Die Gasabgabe durch Additive, wie Weichmacher, Trenn-, Gleitmittel und/oder Füllstoffe muss möglichst gering sein. Des Weiteren darf die Oberfläche nicht elektrostatisch aufgeladen sein. Darüber hinaus sollte die Oberfläche möglichst glatt sein, wobei aber zu große und völlig ebene Flächen zu vermeiden sind. Außerdem müssen die Oberflächen staubfrei sein. It must be ensured that the surface condition of the plastic container is certain Requirements fulfilled. For the vapor deposition of plastic surfaces in a vacuum a clean surface is necessary. The gas release by additives, such as plasticizers, Release agents, lubricants and / or fillers must be as low as possible. Furthermore, the Surface must not be electrostatically charged. In addition, the surface be as smooth as possible, but avoid large and completely flat surfaces. In addition, the surfaces must be dust-free.
Es muss auch konstruktiv beachtet werden, dass Ecken und Kanten abgerundet, Rippen und Vorsprünge konisch ausgebildet und Hinterschneidungen vermieden werden. Nuten und Kerben müssen mindestens dreimal so breit wie tief ausgelegt sein.It must also be considered constructively that corners and edges are rounded, ribs and projections are conical and undercuts are avoided. Grooves and notches must be at least three times as wide as deep.
In einer bevorzugten Ausführungsform verläuft das erfindungsgemäße Verfahren zum Metallisieren im Hochvakuum in vier Schritten.In a preferred embodiment, the method according to the invention proceeds to Metallization in a high vacuum in four steps.
Die zu metallisierenden Oberflächen eines Kraftstoffbehälters werden zunächst gesäubert und entfettet. Hierbei bedient man sich üblicher Verfahrensweisen. Danach wird die Oberfläche mechanisch mattiert oder mit Säure vorbehandelt. Es hat sich auch herausgestellt, dass auch eine Primerbehandlung zufriedenstellende Ergebnisse bringt. Danach wird die Oberfläche grundlackiert. Dieses ist notwendig, um eine gute Haftung des aufgedampften Materials zu gewährleisten. Im allgemeinen verwendet man im Handel erhältliche Grundlackierungslacke für die mit dem Metall zu überziehenden Oberfläche. Weitere Möglichkeiten für die Grundierung sind die Plasmabehandlung oder Fluorierung.The surfaces of a fuel tank to be metallized are initially cleaned and degreased. This is done using standard procedures. After that the surface is mechanically matted or pre-treated with acid. It has too emphasized that primer treatment also gives satisfactory results. Then the surface is primed. This is necessary to ensure good liability to ensure the vapor-deposited material. Generally used in Commercially available base lacquers for those to be coated with the metal Surface. Other options for priming are plasma treatment or Fluorination.
Dann wird im Vakuum metallisiert. Das Bedampfen im Hochvakuum erfolgt bei 1,33 × 10-4 bis 1,33 × 10-6 mbar. Die Schichtdicke beträgt im Mittel etwa 0,1-1,0 µm, sie kann auch oberhalb der Obergrenze liegen. Dies ist, wie bereits oben ausgeführt, vom Material der aufgedampften Metallschicht abhängig.Then it is metallized in a vacuum. Evaporation in a high vacuum takes place at 1.33 × 10 -4 to 1.33 × 10 -6 mbar. The layer thickness is on average about 0.1-1.0 µm, it can also be above the upper limit. As already explained above, this depends on the material of the vapor-deposited metal layer.
Als Metalle für die Metallisierung kommen Eisenmetalle, Nichteisenmetalle oder Legierungen daraus in Frage. Beispielsweise können Bedampfungen mit Aluminium, Kupfer, Nickel oder Legierungen daraus durchgeführt werden.Ferrous metals, non-ferrous metals or come as metals for the metallization Alloys from it in question. For example, steaming with aluminum, Copper, nickel or alloys can be made from them.
Als Kunststoff für den Kunststoffbehälter kann jeder Kunststoff verwendet werden, der im Hochvakuum keine die Metallabscheidung störenden Stoffe oder störende Mengen flüchtiger Stoffe abgibt. Als Beispiele können Polystyrol, Polymethylmethacrylat, Acrylnitril-Butadien-Styrol, Polycarbonat, Polypropylen, Polyamid, Polyethylen und Mischungen daraus genannt werden.Any plastic can be used as plastic for the plastic container in a high vacuum, no substances or quantities that interfere with metal deposition releases volatile substances. Polystyrene, polymethyl methacrylate, Acrylonitrile butadiene styrene, polycarbonate, polypropylene, polyamide, polyethylene and Mixtures of these are called.
Mit dem erfindungsgemäßen Verfahren können auch große Kunststoffoberflächen metallisiert werden. Es ist des Weiteren möglich, auch rundere Flächen ohne Weiteres gleichmäßig zu beschichten. With the method according to the invention, large plastic surfaces can also be used be metallized. It is also possible to easily round surfaces coat evenly.
Der erfindungsgemäße Kunststoffbehälter weist eine wesentliche Verbesserung der Permeationsdichtigkeit gegenüber Kraftstoffen auf. Das gilt auch für Behälter in Halbschalentechnologie. Bei optimaler Schichtdicke, die jeweils vom Material der aufgedampften Metallschicht abhängt, gehen die Permeationswerte des Kraftstoffbehälters auf Null. Somit weisen die erfindungsgemäßen Kraftstoffbehältern im Gegensatz zu nichtbeschichteten Kraftstoffbehältern eine wesentlich längere Lebensdauer auf und können somit effektiv beispielsweise in Fahrzeugen eingesetzt werden.The plastic container according to the invention has a significant improvement in Permeability tightness to fuels. This also applies to containers in Half-shell technology. With optimal layer thickness, each of the material of the vapor-deposited metal layer depends, the permeation values of the Fuel tank to zero. Thus, the fuel tanks according to the invention in In contrast to uncoated fuel tanks, a much longer one Lifespan and can therefore be used effectively in vehicles, for example become.
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000114240 DE10014240A1 (en) | 2000-03-22 | 2000-03-22 | Plastic fuel tank for automobiles which virtually eliminates fuel permeation, is internally coated |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000114240 DE10014240A1 (en) | 2000-03-22 | 2000-03-22 | Plastic fuel tank for automobiles which virtually eliminates fuel permeation, is internally coated |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10014240A1 true DE10014240A1 (en) | 2001-09-27 |
Family
ID=7635920
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2000114240 Withdrawn DE10014240A1 (en) | 2000-03-22 | 2000-03-22 | Plastic fuel tank for automobiles which virtually eliminates fuel permeation, is internally coated |
Country Status (1)
Country | Link |
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DE (1) | DE10014240A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1354815A1 (en) * | 2002-03-14 | 2003-10-22 | FUSTIPLAST S.p.A. | Electrostatic charge-free container and method for the metallization of a plastic tank |
DE102004023533A1 (en) * | 2004-05-13 | 2005-12-08 | Bayerische Motoren Werke Ag | Heat insulated container, especially tank for gaseous or cryogenic fuels for motor vehicles, has at least sections of inner container and/or outer container consisting of plastic with coating or inlay of metal and/or of nanoparticles |
DE102007029569A1 (en) | 2007-06-26 | 2009-01-08 | Elkamet Kunststofftechnik Gmbh | Rotary melting method for manufacturing multilayer container, involves filling rotation melting mold with material, and layer is formed by heating former material under rotation in rotary melting mold |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3436709A1 (en) * | 1984-10-06 | 1986-04-10 | GfO Gesellschaft für Oberflächentechnik mbH, 7070 Schwäbisch Gmünd | Plastics tank, in particular fuel tank |
DE3611158A1 (en) * | 1985-04-03 | 1986-10-09 | Nitto Electric Industrial Co., Ltd., Ibaraki, Osaka | EPOXY RESIN COATING |
DE4337491A1 (en) * | 1993-11-03 | 1995-05-04 | Kautex Werke Gmbh | Container manufactured using the co-extrusion blow molding process |
DE19859343A1 (en) * | 1998-12-22 | 2000-07-06 | Mannesmann Vdo Ag | Fuel tank for motor vehicle provided with cold weather protection incorporating a heater |
DE19908640A1 (en) * | 1999-02-27 | 2000-08-31 | Degussa | Multi-layer composite |
-
2000
- 2000-03-22 DE DE2000114240 patent/DE10014240A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3436709A1 (en) * | 1984-10-06 | 1986-04-10 | GfO Gesellschaft für Oberflächentechnik mbH, 7070 Schwäbisch Gmünd | Plastics tank, in particular fuel tank |
DE3611158A1 (en) * | 1985-04-03 | 1986-10-09 | Nitto Electric Industrial Co., Ltd., Ibaraki, Osaka | EPOXY RESIN COATING |
DE4337491A1 (en) * | 1993-11-03 | 1995-05-04 | Kautex Werke Gmbh | Container manufactured using the co-extrusion blow molding process |
DE19859343A1 (en) * | 1998-12-22 | 2000-07-06 | Mannesmann Vdo Ag | Fuel tank for motor vehicle provided with cold weather protection incorporating a heater |
DE19908640A1 (en) * | 1999-02-27 | 2000-08-31 | Degussa | Multi-layer composite |
Non-Patent Citations (3)
Title |
---|
06293222 A * |
09203359 A * |
JP Patent Abstracts of Japan: 08091060 A * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1354815A1 (en) * | 2002-03-14 | 2003-10-22 | FUSTIPLAST S.p.A. | Electrostatic charge-free container and method for the metallization of a plastic tank |
EP1411002A1 (en) * | 2002-03-14 | 2004-04-21 | FUSTIPLAST S.p.A. | Method for metallization of a plastic tank |
US7159718B2 (en) | 2002-03-14 | 2007-01-09 | Daviplast-Servicos De Consultoria, Sociedade Unipessoal Lda. | Electrostatic charge-free container |
US7556720B2 (en) | 2002-03-14 | 2009-07-07 | Daviplast-Servicos De Consultoria, Sociedade Unipessoal Lda. | Electrostatic charge-free container and method of manufacturing such a container |
DE102004023533A1 (en) * | 2004-05-13 | 2005-12-08 | Bayerische Motoren Werke Ag | Heat insulated container, especially tank for gaseous or cryogenic fuels for motor vehicles, has at least sections of inner container and/or outer container consisting of plastic with coating or inlay of metal and/or of nanoparticles |
DE102007029569A1 (en) | 2007-06-26 | 2009-01-08 | Elkamet Kunststofftechnik Gmbh | Rotary melting method for manufacturing multilayer container, involves filling rotation melting mold with material, and layer is formed by heating former material under rotation in rotary melting mold |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8141 | Disposal/no request for examination |