DE3436709A1 - Plastics tank, in particular fuel tank - Google Patents
Plastics tank, in particular fuel tankInfo
- Publication number
- DE3436709A1 DE3436709A1 DE19843436709 DE3436709A DE3436709A1 DE 3436709 A1 DE3436709 A1 DE 3436709A1 DE 19843436709 DE19843436709 DE 19843436709 DE 3436709 A DE3436709 A DE 3436709A DE 3436709 A1 DE3436709 A1 DE 3436709A1
- Authority
- DE
- Germany
- Prior art keywords
- tank
- plastics
- plastic
- particular fuel
- metal layer
- 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.)
- Ceased
Links
Classifications
-
- 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
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/14—Linings or internal coatings
Abstract
Description
Kunststoffbehälter' insbesondere KraftstoffbehälterPlastic containers, in particular fuel containers
Gegenstand der Erfindung ist ein geschlossener Behälter aus Kunststoffen zur Aufnahme permeationsfähiger Stoffe, insbesondere ein Kraftstoffbehälter für Motorfahrzeuge.The invention relates to a closed container made of plastics to hold permeable substances, in particular a fuel tank for Motor vehicles.
Kraftstoffbehälter aus Kunststoffen haben sich, insbesondere im Automobilbau, immer weiter durchgesetzt. Dank größerer Flexibilität in der Formgestaltung, geringerem Gewicht, größerer Korrosionsbeständigkeit und besserem Verhalten bei Sicherheitstests verdrängen sie die Blechtanks immer mehr.Plastic fuel tanks have proven to be very popular, especially in the automotive industry, always enforced. Thanks to greater flexibility in design, less Weight, greater corrosion resistance and better behavior in safety tests they displace the metal tanks more and more.
Für Kraftstoffbehälter geeignete Kunststoffe, wie Polyolefine, haben jedoch den Nachteil, daß sie gegenüber Kraftstoffen, wie Benzin, Kerosin oder Flüssiggas, zu geringe Permeationshemmwerte besitzen. Diese Kraftstoffe vermögen aufgrund ihres Dampfdruckes und ihrer Molekülgröße die Wandungen entsprechender Behälter zu durchdringen. Insbesondere bei höheren Temperaturen kommt es zu erheblichen Permeationsverlusten, die sicherheitstechnisch bedenklich sind und sich auch durch unangenehmen Geruch bemerkbar machen.Have plastics suitable for fuel tanks, such as polyolefins however, the disadvantage that they are compared to fuels such as gasoline, kerosene or liquefied petroleum gas, have too low a permeation inhibitor value. These fuels are capable of their Vapor pressure and their molecular size to penetrate the walls of the corresponding container. Considerable permeation losses occur, especially at higher temperatures, which are questionable from a safety point of view and also have an unpleasant smell to make noticable.
Es hat daher nicht an Versuchen gefehlt, die Kraftstoffdurchlässigkeit von Polyäthylentanks zu reduzieren. So müssen diese gemäß der EP-OS 70999 eine bestimmte Wandstärke und eine bestimmte Dichte des Materials besitzen.There has therefore been no lack of attempts to improve fuel permeability of polyethylene tanks to reduce. According to EP-OS 70999, they must have a certain Have wall thickness and a certain density of the material.
Solche Behälter sind dann aber relativ starr und teuer.Such containers are then relatively rigid and expensive.
Außerdem ist es aus der US-PS 3,613,957 bekannt, die Behälteroberfläche zu sulfonieren, indem der Behälter einem schwefeltrioxidhaltigen Gas ausgesetzt und anschließend neutralisiert wird. Dabei werden Wasserstoffatome des Sunststoffgerüstes gegen Sulfonsäuregruppen ausgetauscht und dadurch die Permeation gegenüber Kraftstoffen vermindert.It is also known from US Pat. No. 3,613,957, the container surface to sulfonate by exposing the container to a gas containing sulfur trioxide and then neutralized. Thereby hydrogen atoms of the plastic skeleton become exchanged for sulfonic acid groups and thereby the permeation to fuels reduced.
Ähnlich arbeitet ein Verfahren, bei dem ein Stickstoff-Fluor-Gemisch verwendet wird (DE-AS 24 Oi 948). Diese Verfahren haben aber den Nachteil, daß sie realtiv schwer handhabbare und gesundheitsbeeinträchtigende Behandlungsmedien benutzen und die erreichbare Reduzierung der Kraftstoffdurchlässigkeit in vielen Fällen zu gering ist. Dies gilt auch für ein in der DE-OS 30 09 412 beschriebenes Verfahren, bei dem die Kunststoffbehälter mit einem Lackharz beschichtet werden.A process in which a nitrogen-fluorine mixture works similarly is used (DE-AS 24 Oi 948). However, these methods have the disadvantage that they Use treatment media that are relatively difficult to handle and harmful to health and the achievable reduction in fuel permeability in many cases is low. This also applies to a method described in DE-OS 30 09 412, in which the plastic containers are coated with a varnish resin.
Es war daher Aufgabe der vorliegenden Erfindung, einen geschlossenen Behälter aus Kunststoffen zur Aufnahme permeationsfähiger Stoffe zu entwickeln, insbesondere einen Kraftstoffbehälter für Motorfahrzeuge, der die günstigen Eigenschaften der Kunststoffe mit einer hohen Permeationshemmung für Kraftstoffe verbindet.It was therefore an object of the present invention to provide a closed To develop plastic containers to hold permeable substances, in particular a fuel tank for motor vehicles, which has the favorable properties which combines plastics with a high level of permeation inhibition for fuels.
Diese Aufgabe wurde erfindungsgemäß dadurch gelöst, daß die Oberfläche des Kunststoffes mit einer O,i bis 20 Jun starken Metallschicht beschichtet ist.This object was achieved according to the invention in that the surface of the plastic is coated with a 0.1 to 20 Jun thick metal layer.
Vorzugsweise beträgt die Dicke der Metallschicht 1 bis 5 pm, wobei es sich bewährt hat, die innere Oberfläche des Behälters zu beschichten. Als Beschichtungsverfahren kommen alle bekannten Methoden infrage, wie beispielsweise galvanische oder stromlose Metallauftragung, Vakuumaufdampfen oder thermische Zersetzung von Netallverbindungen.The thickness of the metal layer is preferably 1 to 5 μm, where it has proven useful to coat the inner surface of the container. As a coating process all known methods can be used, such as galvanic or currentless Metal deposition, vacuum evaporation or thermal decomposition of metal compounds.
Als Metall schichten haben sich Zink und Aluminium bewährt, außerdem Kupfer-Zinnlegierungen mit 40 bis 55 % Zinn. Als besonders günstig haben sich jedoch Blei-Zinn-Legierungen mit 10 bis 70 % Zinn, insbesondere 40 bis 60 % Zinn, zur Beschichtung von Kunststoffbehältern erwiesen. Man erhält auf diese Weise Kraftstoffbehälter, die sich beliebigen Formen anpassen lassen, korrosionsbeständig und stoßfest sind und außerdem praktisch die gleichen Kraftstoffundurchlässigkeiten aufweisen wie Metallbehälter.Zinc and aluminum have also proven their worth as metal layers Copper-tin alloys with 40 to 55% tin. However, they have proven to be particularly favorable Lead-tin alloys with 10 to 70% tin, in particular 40 to 60% tin, for coating proved by plastic containers. In this way, fuel tanks are obtained which can be adapted to any shape, are corrosion-resistant and shock-proof and also have practically the same fuel impermeability as Metal container.
Die Abbildung zeigt schematisch einen unregelmäßig geformten Kunststoffbehälter mit einem Einfüllstutzen, auf dessen innerer Oberfläche die Kunststoffwand (i) eine 5 pm starke Metallschicht (2) aus einer Blei-Zinnlegierung mit 50 Gew.% Zinn trägt. Neben einer Blei-Zinnlegierung 50/50 eignet sich auch eine Kupferlegierung mit 47 % Zinn hervorragend für die Beschichtung.The figure shows a schematic of an irregularly shaped plastic container with a filler neck, on the inner surface of which the plastic wall (i) has a 5 μm thick metal layer (2) made of a lead-tin alloy with 50% by weight of tin. In addition to a lead-tin alloy 50/50, a copper alloy with 47 is also suitable % Tin excellent for coating.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843436709 DE3436709A1 (en) | 1984-10-06 | 1984-10-06 | Plastics tank, in particular fuel tank |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843436709 DE3436709A1 (en) | 1984-10-06 | 1984-10-06 | Plastics tank, in particular fuel tank |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3436709A1 true DE3436709A1 (en) | 1986-04-10 |
Family
ID=6247265
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19843436709 Ceased DE3436709A1 (en) | 1984-10-06 | 1984-10-06 | Plastics tank, in particular fuel tank |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3436709A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19929421A1 (en) * | 1999-06-26 | 2000-12-28 | Bayerische Motoren Werke Ag | Car fuel tank, especially for liquid hydrogen, comprises inner and outer tank, inner tank and space between two tanks being divided by reinforcements, outer reinforcement being supported by insulating layer which rests on inner tank |
DE10014240A1 (en) * | 2000-03-22 | 2001-09-27 | Volkswagen Ag | Plastic fuel tank for automobiles which virtually eliminates fuel permeation, is internally coated |
JP2002283853A (en) * | 2000-11-30 | 2002-10-03 | Visteon Global Technologies Inc | Low permeability-attachment, low permeability-container using this attachment, and a manufacture method of this container |
EP1036690A3 (en) * | 1999-03-17 | 2002-10-23 | Siemens Aktiengesellschaft | Fuel tank for motor vehicle |
EP1386773A1 (en) * | 2002-08-01 | 2004-02-04 | Hydro Aluminium Deutschland GmbH | Gastight fuel tank |
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 (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1028408B (en) * | 1955-01-17 | 1958-04-17 | Alex Kamp & Co | Plastic container with vapor-deposited metal covers |
DE2350809A1 (en) * | 1973-10-10 | 1975-04-17 | Thielmann Geb Ag | Drink transport and storage vessel - has internal metal coating applied to outer body of aluminium plastic or wood |
DE2336436B2 (en) * | 1973-07-18 | 1976-07-29 | Pauls, Emil, r.Dr., Riehen bei Basel (Schweiz) | INTERIOR LINING FOR A TRANSPORT VESSEL FOR BEER |
-
1984
- 1984-10-06 DE DE19843436709 patent/DE3436709A1/en not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1028408B (en) * | 1955-01-17 | 1958-04-17 | Alex Kamp & Co | Plastic container with vapor-deposited metal covers |
DE2336436B2 (en) * | 1973-07-18 | 1976-07-29 | Pauls, Emil, r.Dr., Riehen bei Basel (Schweiz) | INTERIOR LINING FOR A TRANSPORT VESSEL FOR BEER |
DE2350809A1 (en) * | 1973-10-10 | 1975-04-17 | Thielmann Geb Ag | Drink transport and storage vessel - has internal metal coating applied to outer body of aluminium plastic or wood |
Non-Patent Citations (3)
Title |
---|
"Lexikon für Metalloberflächen-Veredlung" von Dr. Heinz W. DETTNER, S. 212 * |
"Metalltennde für Ingenieure" von Albert G. GUY, 1970, S. 229/230 * |
Zeitschrift "Kunststoffe", Bd. 43, 1953, Heft 12, S. 547/548 * |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1036690A3 (en) * | 1999-03-17 | 2002-10-23 | Siemens Aktiengesellschaft | Fuel tank for motor vehicle |
DE19929421A1 (en) * | 1999-06-26 | 2000-12-28 | Bayerische Motoren Werke Ag | Car fuel tank, especially for liquid hydrogen, comprises inner and outer tank, inner tank and space between two tanks being divided by reinforcements, outer reinforcement being supported by insulating layer which rests on inner tank |
DE19929421B4 (en) * | 1999-06-26 | 2015-05-13 | Bayerische Motoren Werke Aktiengesellschaft | Container for holding fluids |
DE10014240A1 (en) * | 2000-03-22 | 2001-09-27 | Volkswagen Ag | Plastic fuel tank for automobiles which virtually eliminates fuel permeation, is internally coated |
JP2002283853A (en) * | 2000-11-30 | 2002-10-03 | Visteon Global Technologies Inc | Low permeability-attachment, low permeability-container using this attachment, and a manufacture method of this container |
EP1386773A1 (en) * | 2002-08-01 | 2004-02-04 | Hydro Aluminium Deutschland GmbH | Gastight fuel tank |
WO2004012953A2 (en) * | 2002-08-01 | 2004-02-12 | Hydro Aluminium Deutschland Gmbh | Gastight fuel tank |
WO2004012953A3 (en) * | 2002-08-01 | 2004-04-15 | Hydro Aluminium Deutschland | Gastight fuel tank |
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69909054T2 (en) | SURFACE TREATED STEEL PLATE FOR FUEL TANKS AND METHOD FOR THE PRODUCTION THEREOF | |
DE102007021602A1 (en) | Corrosion protection system for metals and pigment for this purpose | |
DE112005002448T5 (en) | Composition for thermosetting powder coating | |
DE60200458T2 (en) | Sheet metal with a corrosion protection coating | |
DE3436709A1 (en) | Plastics tank, in particular fuel tank | |
DE3029777C2 (en) | ||
DE2232067A1 (en) | PHOSPHATING SOLUTIONS | |
DE3009412A1 (en) | HOLLOW BODIES SUITABLE FOR RECEIVING DIFFUSIONABLE SUBSTANCES, IN PARTICULAR CONTAINERS, MADE OF PLASTIC-COATED PLASTIC, IN PARTICULAR POLYOLEFINE PLASTIC, METHOD FOR THE PRODUCTION AND USE THEREOF | |
DE2602977A1 (en) | PAINTS AND THEIR USE | |
EP0674470A1 (en) | Container made of thermoplastic, synthetic material and obtained by means of blow moulding for carrying hazardous fluid materials | |
DE3821906A1 (en) | WELDING WITH CORROSION-RESISTANT COATING | |
DE2246653C3 (en) | Coated organic polymer molding and process for producing the same | |
DE19924687A1 (en) | Protecting light metals and their alloys from corrosion damage, especially for use in the vehicle construction industry | |
DE1644690B2 (en) | TIN CAN BODY | |
DE1729100A1 (en) | Process for the production of closed and open containers and molded parts from plastics and containers and molded parts produced in this way | |
DE19822295C2 (en) | Elastic shiny products | |
DE102015104887B4 (en) | Tubular product and method of making same | |
DE2743381C2 (en) | Process for the anti-corrosion coating of steel pipes | |
DE19628481C1 (en) | Barrier composition for polyolefin bodies | |
DE4446585C2 (en) | Blow-molded containers made of thermoplastic material for holding flowable media that require safety | |
DE2341536A1 (en) | COATING FOR CORROSIVE FERROUS BASE MATERIALS | |
DE3738193C2 (en) | ||
DE2612154C2 (en) | Process for the corrosion protection coating of pipes or line elements made of steel | |
EP0066880A2 (en) | Anti-corrosive pigment, its use in paints and paints containing the same | |
EP0024507A1 (en) | Use of a composite material based on aluminium |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |