FR2923284A1 - Cold rolled steel bottle for storing and transporting e.g. propane in power lift truck, has anti-impact coating formed of mixture of epoxy resin with short and long molecular chains, where thickness of coating is of specific microns - Google Patents

Cold rolled steel bottle for storing and transporting e.g. propane in power lift truck, has anti-impact coating formed of mixture of epoxy resin with short and long molecular chains, where thickness of coating is of specific microns Download PDF

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Publication number
FR2923284A1
FR2923284A1 FR0707707A FR0707707A FR2923284A1 FR 2923284 A1 FR2923284 A1 FR 2923284A1 FR 0707707 A FR0707707 A FR 0707707A FR 0707707 A FR0707707 A FR 0707707A FR 2923284 A1 FR2923284 A1 FR 2923284A1
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Prior art keywords
coating
steel
mixture
microns
thickness
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Granted
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FR0707707A
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French (fr)
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FR2923284B1 (en
Inventor
Alain Dailloux
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Metallurg Liotard Freres SA So
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Metallurg Liotard Freres SA So
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/14—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of aluminium; constructed of non-magnetic steel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/058—Size portable (<30 l)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0607—Coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0619—Single wall with two layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0639—Steels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/225—Spraying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/23—Manufacturing of particular parts or at special locations
    • F17C2209/232—Manufacturing of particular parts or at special locations of walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/035—Propane butane, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/011—Improving strength
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/012—Reducing weight
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/07—Applications for household use
    • F17C2270/0745—Gas bottles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Paints Or Removers (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

The bottle has an anti-impact coating formed of a mixture of epoxy resin with short molecular chain and polymerization degree between 2 and 3 and epoxy resin with long molecular chain and polymerization degree between 11 and 12. The thickness of the coating is 400 microns. The wall thickness of the bottle is less than 1.6 mm. The anti-impact coating is protected from UV by anti-UV varnish, whose thickness is 40 microns. The varnish is formed from aliphatic or cycloaliphatic monomer. An independent claim is also included for a method for fabricating a cold rolled steel gas bottle.

Description

Depuis plus de 70 ans, il est courant d'utiliser des bouteilles pour le stockage et le transport des gaz, en particulier le butane et le propane. La contenance la plus courante de ces bouteilles est 13 kg. Ces bouteilles en acier ont de grands avantages en matière de sécurité et de longévité, mais ont pour inconvénient majeur leur poids, car, compte tenu des nuances d'acier couramment utilisées, l'épaisseur d'acier est d'environ 2,2 mm et le poids de ces bouteilles est de 13 à 15 kg vides, soit 26 à 28 kg pleines. Ce poids élevé est une contrainte de plus en plus mal accepté par les utilisateurs, qu'il s'agisse de particuliers ou de professionnels, les normes européennes recommandant des manutentions d'unités inférieures à 25 kg. For more than 70 years, it has been common practice to use cylinders for storing and transporting gases, particularly butane and propane. The most common capacity of these bottles is 13 kg. These steel bottles have great advantages in terms of safety and longevity, but have the major disadvantage of their weight because, given the steel grades commonly used, the thickness of steel is about 2.2 mm. and the weight of these bottles is 13 to 15 kg empty, or 26 to 28 kg full. This high weight is a constraint more and more poorly accepted by users, whether individuals or professionals, the European standards recommend handling units less than 25 kg.

Depuis quelques années, l'évolution des normes en matière de bouteilles à gaz a permis l'utilisation d'aciers de caractéristiques mécaniques plus élevées, ce qui a permis une réduction des épaisseurs de métal, donc de poids des bouteilles. In recent years, the evolution of standards for gas cylinders has allowed the use of steels with higher mechanical characteristics, which has allowed a reduction in the thickness of metal, and therefore the weight of the bottles.

Dans une évolution récente, des bouteilles en 1,4 mm ont été construites. Il s'avère à l'usage de ces nouvelles bouteilles que, si leur usage domestique par des particuliers ne présentent que des avantages par rapport aux produits anciens beaucoup plus lourds, des risques apparaissent pour les utilisations professionnelles. Il s'agit en particulier d'une utilisation très courante des bouteilles propane comme carburant pour les chariots élévateurs. In a recent evolution, 1.4 mm bottles were built. It turns out to be the use of these new bottles that, if their domestic use by individuals have only advantages over older products much heavier, risks appear for professional uses. In particular, this is a very common use of propane cylinders as fuel for forklifts.

Dans cette utilisation, l'avantage du gain de poids est très appréciable, mais l'importante réduction de l'épaisseur de l'acier conduit à une résistance aux chocs insuffisante. La présente invention porte sur des bouteilles à gaz fabriquées en acier de caractéristiques mécaniques élevées, permettant d'avoir une épaisseur d'acier de la paroi de moins de 1,6 mm, dont la fragilité aux chocs due à la faible épaisseur est compensée par un revêtement semi élastique de protection. Compte tenu de la faible épaisseur de l'acier utilisé, les nuances classiquement adaptées aux bouteilles à gaz traditionnelles, issues de la norme d'acier EN 10120, ne peuvent pas être utilisées, car elles n'existent pas dans des épaisseurs aussi faible. In this use, the advantage of weight gain is very appreciable, but the significant reduction in the thickness of the steel leads to insufficient impact resistance. The present invention relates to gas cylinders made of steel of high mechanical characteristics, making it possible to have a thickness of steel of the wall of less than 1.6 mm, whose impact fragility due to the small thickness is compensated by a semi-elastic protective coating. Given the small thickness of the steel used, the grades conventionally adapted to traditional gas cylinders, from the EN 10120 steel standard, can not be used because they do not exist in such low thicknesses.

Il vaut mieux utiliser des acier laminés à froid, les aciers de type "dual phase" (par exemple issus de la norme SEW 097) étant particulièrement bien adaptés, d'autres nuances laminées à froid, par exemple issue de la norme EN 10268 pouvant aussi être utilisées. It is better to use cold rolled steel, the "dual phase" type steels (for example from SEW 097) being particularly well adapted, other cold-rolled grades, for example derived from the EN 10268 standard, being also be used.

Le revêtement anti-choc est constitué de résines thermodurcissables, réalisées de la manière 20 suivante : The anti-shock coating consists of thermosetting resins, made in the following manner:

une première couche destinée à absorber les chocs est déposée sur l'acier après soudage des éléments constitutifs de la bouteille à gaz. Afin d'être efficace, 25 ce revêtement est particulièrement adhérent sur l'acier (adhérence supérieure à 8 Mpa), et a une épaisseur d'au moins 400 microns. Cette couche anti-chocs, qui combine adhérence et flexibilité pour résister aux chocs, peut être 30 constituée par un mélange de résine époxy à courte chaîne moléculaire, à degrés de polymérisation n=2 à 3 (60 à 80 % en poids du mélange), et de résine époxy à longue chaîne moléculaire, à degrés de polymérisation n= 11 à 12 (40 à 20 % en poids du mélange). 35 Le durcisseur utilisé est de type phénolique et le taux de pigments et de charge doit être le plus bas possible pour ne pas altérer la flexibilité. a first layer for absorbing impacts is deposited on the steel after welding of the constituent elements of the gas cylinder. In order to be effective, this coating is particularly adherent on steel (adhesion greater than 8 MPa), and has a thickness of at least 400 microns. This impact-resistant layer, which combines adhesion and flexibility to withstand shocks, may be a short molecular chain epoxy resin mixture with degrees of polymerization n = 2 to 3 (60 to 80% by weight of the mixture). and of long molecular chain epoxy resin, with degrees of polymerization n = 11 to 12 (40 to 20% by weight of the mixture). The hardener used is phenolic type and the pigment and filler ratio should be as low as possible so as not to impair flexibility.

Ces résines sont favorablement appliquées sous forme de poudre, le support métallique devant être préchauffé à une température comprise entre 120 et 200° C afin de permettre un dépôt d'au moins 400 microns. Cette première couche est ensuite polymérisée à une température adaptée au mélange, soit en général entre 160° et 230° C et, de préférence, aux environs de 180° C, pendant 10 à 12 minutes, qui peuvent se réduire à 5 minutes si la température est de 220° C. These resins are favorably applied in powder form, the metal support having to be preheated to a temperature of between 120 and 200 ° C. in order to allow a deposit of at least 400 microns. This first layer is then polymerized at a temperature suitable for mixing, in general between 160 ° and 230 ° C. and, preferably, at around 180 ° C. for 10 to 12 minutes, which can be reduced to 5 minutes if temperature is 220 ° C.

La première couche ainsi réalisée apporte une très bonne résistance aux chocs. Malheureusement les résines époxy ont de mauvaises tenues aux ultraviolets (jaunissement, farinage), ce qui est tout à fait préjudiciable dans le cas de bouteilles à gaz qui, tout au long de leur vie (plus de 40 années), vont subir à de multiples reprises l'agression de la lumière solaire. The first layer thus produced provides very good impact resistance. Unfortunately, epoxy resins have poor ultraviolet resistance (yellowing, chalking), which is quite detrimental in the case of gas cylinders that, throughout their lives (over 40 years), will suffer multiple times the aggression of sunlight.

Le revêtement anti-choc est utilement protégé par une deuxième couche d'au moins 40 microns d'épaisseur de vernis résistant aux ultraviolets. The anti-shock coating is usefully protected by a second layer of at least 40 microns thick UV-resistant varnish.

Une très bonne solution dans ce domaine de la protection contre les ultraviolets est une poudre dont la résine de base est constituée à partir de monomères aliphatiques ou cycloaliphatiques, avec le moins possible de doubles liaisons carbone-carbone libres, sensibles à l'oxydation ; par exemple moins de 5 % et mieux moins de 1 des liaisons sont doubles. Cette deuxième couche de poudre est appliquée sur la première avant refroidissement de celle-ci, soit préalablement à sa polymérisation, soit postérieurement. A very good solution in this field of protection against ultraviolet is a powder whose base resin is constituted from aliphatic or cycloaliphatic monomers, with the least possible free carbon-carbon double bonds, sensitive to oxidation; for example less than 5% and better than 1 of the bonds are double. This second layer of powder is applied to the first before cooling thereof, either before its polymerization, or afterwards.

Ces deux couches de poudres sont appliquées de la même façon à l'aide de pistolets de type électrostatique, qui permettent de charger électriquement la poudre afin de favoriser sa tenue sur le produit à peindre avant cuisson. These two layers of powders are applied in the same way by means of electrostatic type guns, which make it possible to electrically charge the powder in order to favor its holding on the product to be painted before baking.

Les mêmes familles de résines peuvent être utilisées sous formes liquides, la présence de solvants rendant cependant cette technique moins satisfaisante au regard de la protection de l'environnement. The same families of resins can be used in liquid forms, the presence of solvents however rendering this technique less satisfactory with regard to the protection of the environment.

L'invention vise aussi un procédé de fabrication d'une bouteille en acier laminé à froid d'une épaisseur extérieure de paroi de moins de 1,6 mm, caractérisé en ce qu'il consiste à revêtir l'acier de la bouteille d'un revêtement d'au moins 400 microns d'épaisseur d'un mélange de résines époxydiques à chaînes courtes et à chaînes longues, puis à porter le revêtement à une température de polymérisation et à appliquer, avant ou après la polymérisation des résines, mais alors que le revêtement est déjà ou encore chaud, une couche d'au moins 40 microns d'épaisseur de vernis résistant aux U.V. 4 10 The invention also relates to a method for producing a cold-rolled steel bottle having an outside wall thickness of less than 1.6 mm, characterized in that it consists in coating the steel with the bottle of a coating at least 400 microns thick of a mixture of short-chain and long-chain epoxy resins, then to bring the coating to a polymerization temperature and to apply, before or after the polymerization of the resins, but then whether the coating is already hot or not, a layer of at least 40 microns thick UV resistant varnish 4 10

Claims (8)

REVENDICATIONS 1. Bouteille à gaz en acier, notamment en acier laminé à froid, d'épaisseur de paroi inférieure à 1,6 mm, caractérisée par une protection anti-choc de l'acier par un revêtement d'au moins 400 microns d'épaisseur. 1. Gas cylinders of steel, in particular of cold-rolled steel, with a wall thickness of less than 1.6 mm, characterized by an anti-shock protection of the steel with a coating of at least 400 microns thick . 2. Bouteille à gaz en acier selon la revendication 1, caractérisée en ce que le revêtement est adhérent à au moins 8 Mpa. 2. Gas cylinder made of steel according to claim 1, characterized in that the coating is adherent to at least 8 MPa. 3. Bouteille à gaz en acier selon la revendication 1 ou 2, caractérisé en ce que le revêtement anti-chocs est constitué d'un mélange de résines époxydiques à courtes et longues chaînes moléculaires. 15 3. Gas cylindrical steel according to claim 1 or 2, characterized in that the impact-resistant coating consists of a mixture of epoxy resins short and long molecular chains. 15 4. Bouteille à gaz en acier selon la revendication 3, caractérisé en ce que le mélange est constitué de 60 à 80 % en poids de résine à degré de polymérisation allant de 2 à 3 et de 40 à 20 % en poids de résine à degré de 20 polymérisation allant de 11 à 12. 4. Gas cylinder made of steel according to claim 3, characterized in that the mixture consists of 60 to 80% by weight of resin with a degree of polymerization ranging from 2 to 3 and 40 to 20% by weight of resin to degree of polymerization ranging from 11 to 12. 5. Bouteille à gaz en acier selon l'une des revendications 1 à 3, caractérisé en ce que le revêtement anti-choc est protégé des ultraviolets par un vernis anti 25 U.V. d'au moins 40 microns d'épaisseur. 5. Steel gas cylinder according to one of claims 1 to 3, characterized in that the anti-shock coating is protected from ultraviolet by a UV varnish at least 40 microns thick. 6. Bouteille à gaz en acier selon la revendication 5, caractérisé en ce que le vernis est constitué à partir de monomères aliphatiques ou cycloaliphatiques ayant peu de 30 doubles liaisons. Steel gas cylinder according to claim 5, characterized in that the lacquer is made from aliphatic or cycloaliphatic monomers having few double bonds. 7. Procédé de fabrication d'une bouteille en acier laminé à froid d'une épaisseur extérieure de paroi de moins de 1,6 mm, caractérisé en ce qu'il consiste à 35 revêtir l'acier de la bouteille d'un revêtement d'au moins 400 microns d'épaisseur d'un mélange de résines époxydiques à chaînes courtes et à chaînes longues, puisà porter le revêtement à une température de polymérisation et à appliquer, avant ou après la polymérisation des résines mais alors que le revêtement est déjà ou encore chaud, une couche d'au moins 40 microns d'épaisseur de vernis résistant aux U.V. 7. A method of manufacturing a cold-rolled steel bottle with an outside wall thickness of less than 1.6 mm, characterized in that it consists in coating the steel of the bottle with a coating of at least 400 microns thick of a mixture of short-chain and long-chain epoxy resins, then bringing the coating to a polymerization temperature and applying, before or after polymerization of the resins, but while the coating is already or hot, a layer of at least 40 microns thick UV-resistant varnish 8. Procédé suivant la revendication 7, caractérisé en ce que l'on applique les résines et le vernis au pistolet de type électrostatique. 8. A method according to claim 7, characterized in that the resins and the varnish are applied to the electrostatic gun type.
FR0707707A 2007-11-02 2007-11-02 BOTTLE GAS LIGHT AND ANTI-SHOCK. Active FR2923284B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0707707A FR2923284B1 (en) 2007-11-02 2007-11-02 BOTTLE GAS LIGHT AND ANTI-SHOCK.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0707707A FR2923284B1 (en) 2007-11-02 2007-11-02 BOTTLE GAS LIGHT AND ANTI-SHOCK.

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FR2923284A1 true FR2923284A1 (en) 2009-05-08
FR2923284B1 FR2923284B1 (en) 2010-01-22

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2137976A1 (en) * 1971-05-17 1972-12-29 Brunswick Corp
FR2268223A1 (en) * 1974-04-19 1975-11-14 Martin Marietta Corp
FR2575540A1 (en) * 1984-12-27 1986-07-04 Schneider Ind Si External protection coating for gas bottles
EP0654633A1 (en) * 1993-11-22 1995-05-24 SCHNEIDER INDUSTRIE S.I. Société Anonyme dite : Reservoir, in particular gas bottle
EP0707174A1 (en) * 1994-10-14 1996-04-17 SCHNEIDER INDUSTRIE S.I. Société Anonyme dite : Container, in particular a gas bottle
WO1997028401A1 (en) * 1996-02-01 1997-08-07 Lockheed Martin Corporation High-performance, thin metal-lined, composite overwrapped pressure vessel
US20020029449A1 (en) * 2000-09-12 2002-03-14 Heinz Portmann Pre-stressed fibre-reinforced high pressure vessel
WO2002044067A1 (en) * 2000-11-30 2002-06-06 Adc Acquistion Company Method to reinforce thin wall thermoplastic storage vessels
US6779565B1 (en) * 2003-03-19 2004-08-24 Ncf Industries, Inc. Composite reinforced gas transport module
EP1679468A1 (en) * 2005-01-11 2006-07-12 L'air Liquide S.A. Gas pressure vessel

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2137976A1 (en) * 1971-05-17 1972-12-29 Brunswick Corp
FR2268223A1 (en) * 1974-04-19 1975-11-14 Martin Marietta Corp
FR2575540A1 (en) * 1984-12-27 1986-07-04 Schneider Ind Si External protection coating for gas bottles
EP0654633A1 (en) * 1993-11-22 1995-05-24 SCHNEIDER INDUSTRIE S.I. Société Anonyme dite : Reservoir, in particular gas bottle
EP0707174A1 (en) * 1994-10-14 1996-04-17 SCHNEIDER INDUSTRIE S.I. Société Anonyme dite : Container, in particular a gas bottle
WO1997028401A1 (en) * 1996-02-01 1997-08-07 Lockheed Martin Corporation High-performance, thin metal-lined, composite overwrapped pressure vessel
US20020029449A1 (en) * 2000-09-12 2002-03-14 Heinz Portmann Pre-stressed fibre-reinforced high pressure vessel
WO2002044067A1 (en) * 2000-11-30 2002-06-06 Adc Acquistion Company Method to reinforce thin wall thermoplastic storage vessels
US6779565B1 (en) * 2003-03-19 2004-08-24 Ncf Industries, Inc. Composite reinforced gas transport module
EP1679468A1 (en) * 2005-01-11 2006-07-12 L'air Liquide S.A. Gas pressure vessel

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