EP0826433A2 - Verfahren und Vorrichtung zur Innenbeschichtung einer Gasflasche - Google Patents
Verfahren und Vorrichtung zur Innenbeschichtung einer Gasflasche Download PDFInfo
- Publication number
- EP0826433A2 EP0826433A2 EP97890171A EP97890171A EP0826433A2 EP 0826433 A2 EP0826433 A2 EP 0826433A2 EP 97890171 A EP97890171 A EP 97890171A EP 97890171 A EP97890171 A EP 97890171A EP 0826433 A2 EP0826433 A2 EP 0826433A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas bottle
- bottle
- primer
- longitudinal axis
- plastic powder
- 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.)
- Granted
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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
- B05D7/22—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
- B05D7/227—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 of containers, cans or the like
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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
- B05D1/002—Processes for applying liquids or other fluent materials the substrate being rotated
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- 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
- F17C1/10—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge with provision for protection against corrosion, e.g. due to gaseous acid
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- 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
- F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
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- 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
- F17C2201/0114—Shape cylindrical with interiorly curved end-piece
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- 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
- F17C2201/054—Size medium (>1 m3)
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- 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
- F17C2201/056—Small (<1 m3)
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- 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
- F17C2203/0604—Liners
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- 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
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- 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
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- 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
- F17C2203/0646—Aluminium
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- 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
- F17C2203/0658—Synthetics
- F17C2203/066—Plastics
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- 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
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0153—Details of mounting arrangements
- F17C2205/018—Supporting feet
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- 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
- F17C2209/227—Assembling processes by adhesive means
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- 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
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- 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
- F17C2223/0107—Single phase
- F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
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- 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
- F17C2260/013—Reducing manufacturing time or effort
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- 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
- F17C2260/05—Improving chemical properties
- F17C2260/053—Reducing corrosion
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- 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
Definitions
- the invention relates to a method for internal coating a gas bottle, especially a steel bottle.
- the invention relates to a device for Execution of the procedure.
- DD 159 529 describes a method for applying a Corrosion protection coating on the inner wall of a gas bottle known, the plastic in powdered form electrostatically charged and heated on the inner wall Gas bottle is sprayed on. Because of the different electric field strength at various points on the inner wall, especially on concave arches or corner areas in the floor or on the shoulder of the gas cylinder, however, it can lead to a uneven application of the plastic powder and thus too uneven wall thicknesses of the coating come up, leading to cracks in the coating can lead.
- gas cylinders also called gas cylinder
- thermoplastic powder which after its distribution inside the bottle, which under turning and The bottle is swiveled to a temperature above heated to its melting point and thus melted.
- portions of the powder can shift unintentionally, before a coherent coating by melting and cooling is formed because the plastic material in relatively long Is in powder form; this is a uniform coating thickness difficult to reach, and obviously that's why, for safety reasons intended to form a relatively thick coating.
- the primer also simply by gravity into the one versus the Lower the temperature when introducing the plastic powder Temperature preheated gas bottle is introduced, and this the gas bottle to distribute the primer over its inner wall rotated about its longitudinal axis and one transverse to the longitudinal axis extending axis is brought into different positions.
- the primer can be just like the thermoplastic Plastic powder simply with the help of one in the bottle opening inserted funnel.
- the primer in the cylindrical wall area as well as in the shoulder and neck area of the Gas bottle is also beneficial if after full Introducing the primer to the gas bottle while it is rotated for a predetermined time, e.g. 10 s, in a pendulum motion offset about the axis transverse to the longitudinal axis thereupon for a predetermined time, e.g. again 10 s, in the horizontal position and then in an inclined position bottle opening directed below.
- a predetermined time e.g. 10 s
- a predetermined time e.g. 20 s after swiveling the gas bottle in the inclined position the gas bottle in the vertical position with the Bottle opening is brought down and opened to allow any excess adhesive to run out.
- An advantageous, due to a simple construction distinguished device for performing the inventive is characterized in that on a frame Carrier is pivotally mounted and the carrier is a clamping device for the gas bottle rotatably, the carrier Swivel drive and the clamping device assigned a rotary drive is. On such a device, the Quickly clamp and unclamp the gas bottle and slide it into any swivel and make pendulum movements while the gas bottle is around her Longitudinal axis rotates.
- the carrier as a rail with a vertically protruding shaft is formed, which in the frame is mounted and on which the rotary actuator engages.
- the carrier has two jaws for the bottom or neck section the gas bottle carries, at least one of the jaws is longitudinally adjustable and each clamping jaw is a clamping element is rotatable about a common axis of rotation, the Rotary drive is assigned to one of the clamping elements.
- clamping elements of the clamping jaws To unwanted heat dissipation from the preheated gas bottle as possible via the clamping elements of the clamping jaws avoid, it is also advantageous if the clamping elements Connected to bearing shafts via thermally insulating washers are, which are rotatably mounted in the jaws.
- the neck portion of the gas bottle assigned bearing shaft designed as a hollow shaft, and the associated clamping element and its insulating washer provided with a central bore, the diameter with corresponds to the inside diameter of the hollow shaft.
- a mechanically positive and particularly stable arrangement the clamping jaws with regard to their longitudinal displacement can be achieved if the jaws on rollers Carrier rails of the carrier arranged longitudinally and by means of at least one spindle drive in their distance from each other are adjustable. This allows the weight of the Forces occurring gas bottle easily absorbed and on the frame will be transferred.
- gas bottle 1 which is conventional per se, how they are used to store pressurized Gases is used.
- gas bottles 1 are in particular made of steel, optionally also of aluminum and can e.g. an integrated stand 2 and a bottle neck 3 have a bottle opening 4, which extends inwards is tapered and provided with an internal thread 5.
- Bottle shoulder A and brim B proved problematic.
- the device for internal coating shown in Figures 2 and 3 the gas bottle 1 with thermoplastic consists of a frame 6 on which a support 7 is pivotable is mounted, which in turn a jig 8 for the Gas bottle 1 is rotatably supported.
- the frame 6 consists of a Base consisting of two using anchor bolts (not shown) attached to the floor L-shaped profiles 9 and two across arranged to the profiles 9 and welded to them Support plates 10 and a stand consisting of two C-shaped Profiles 11, which are welded to the center of the support plates 10 and project vertically upwards.
- a storage box 12 is arranged between them, which is connected to the C-profiles 11 by welding, whereby the end of a shaft 13 which can be driven by a swivel drive 14 protrudes from the storage box 12 and rigid with an as Rail 15 formed with a rectangular tube cross section Carrier 7 is connected in the middle of the rail 15, so that the rail 15 is pivotable about the axis 16 of the shaft 13; especially can the rail 15 by the swivel drive 14 in any fixed inclined positions or oscillating swiveling movements be transferred.
- the clamping device 8 has two along the rail 15 adjustable jaws 17, 18 for the bottom or neck section 2 or 3 (Fig.1) of the gas bottle 1, which each a clamping element 19, 20 about a common axis of rotation 21 store that corresponds to the longitudinal axis of the gas bottle 1.
- the carrier 7 lateral rails 22 for four grooved each Rollers 23 of the jaws 17, 18 so that the jaws 17, 18 longitudinally displaceable, but also mechanically positive the rail 15 are connected by the weight of the clamped gas bottle 1 to absorb occurring forces or to transfer to the frame 6.
- two spindle drives 24, 25 are provided, which each consist of a threaded rod 26, 27, the one in the clamping jaws 17, 18 are penetrated by the nuts 28, 29, the inner end of the threaded rod 26, 27 being freely rotatable and secured against longitudinal displacement in a bearing 30, 31 within the rail 15 is mounted, while the outer end with a square socket 32, 33 is provided for attachment a crank or the like for adjusting the spindle drives 24, 25 serves.
- the gas bottle 1 can be quickly and easily inserted into the clamping device 8 and removed from it or can the jaws 17, 18 to different Lengths of gas bottle 1 can be set.
- the clamping elements 19, 20 are thermally insulating Disks 34, 35 connected to bearing shafts 36, 37 which in the Clamping jaws 17, 18 are rotatably mounted.
- the neck section 3 of the gas bottle 1 associated bearing shaft 37 is a hollow shaft formed, the associated clamping element 20 and its Insulating washer 35 are provided with a central bore, their diameter with the inner diameter of the hollow shaft matches.
- the gas bottle 1 is the end face facing the gas bottle 1 of the clamping element 20 from its bore conical shaped.
- the clamping element assigned to the bottom section 2 of the gas bottle 1 19 has four clamping claws 38 with inclined ones Contact surfaces for holding the bottom section 2 of the Gas bottle 1 on.
- the one assigned to this clamping element 19 Bearing shaft 36 is coupled to a rotary drive 39 in order to Set gas bottle 1 to rotate.
- the Rotary drive 39 formed as an electric motor 40
- the Bearing shaft 36 drives a worm gear 41.
- the swivel drive 14 for the shaft 13 can be a hydraulic, pneumatic or electric drive.
- the gas bottle 1 is in a sandblasting system (not shown) pretreated for approx. 2.5 h.
- the gas bottle 1 is then in an oven, such as a conventional air circulation furnace (not shown), on a Temperature of 80 ° C warmed.
- the gas bottle 1 is removed from the oven, set up vertically, and as a primer for the plastic powder at least 1/5 the amount of a mixture of a commercial primer, e.g. Rilprim (a primer based on xylene, ethyl glycol and Butanol), and a suitable dilution, e.g. based on Isopropyl alcohol and methyl ethyl ketone, with a funnel 42 in filled the gas bottle 1.
- a commercial primer e.g. Rilprim (a primer based on xylene, ethyl glycol and Butanol)
- a suitable dilution e.g. based on Isopropyl alcohol and methyl eth
- the gas bottle 1 is then inserted into the clamping jaws 17, 18 the rotating and pivoting device described with reference to Figures 2 and 3 clamped vertically and about its longitudinal axis in Rotation offset (see Fig.4a), the speed 20 to 40 rpm can be.
- 50 1 gas bottles e.g. after about 5 s
- the remaining part of 4/5 introduced the mixture and closed the bottle opening 4, e.g. through a wooden plug 43 (see Fig.4b), whereupon the Gas bottle 1 is made to oscillate.
- the Pendulum movement takes place around the transverse to the longitudinal axis of the gas bottle 1 extending axis 16 and it can depending on the size of the gas bottle 1 and therefore shorter or shorter depending on the amount of the primer longer, e.g. last approx. 10 s.
- a distribution takes place here the primer over the cylindrical inner wall and over the Bottom of the gas bottle 1.
- the gas bottle 1 is for a predetermined time, e.g. 10 s, brought into a horizontal position (see Fig. 4c), and then for a predetermined time, e.g. 20 s, in one Tilted with the bottle opening facing downwards, the shoulder and neck area of the gas bottle 1 evenly is coated (see Fig. 4d).
- a predetermined time e.g. 10 s
- a predetermined time e.g. 20 s
- the respective times are based on the size of the gas bottle to coordinate, on the one hand a sufficiently long time for the distribution of the primer, but also on the other hand a not too long period in total with regard to one unwanted cooling of the gas bottle 1 must be provided.
- gas bottle 1 is opened again and down with directed bottle opening 4 for a predetermined time, e.g. 3 min, placed in a vertical position to allow a leakage of to allow any excess adhesive base.
- a predetermined time e.g. 3 min
- Compressed air e.g. via a thin tube 44
- into the gas bottle 1 blown in until there is no more mist from the gas bottle 1 emerges (see Fig. 4e)
- the gas bottle 1 for a predetermined time e.g. 2h, on a horizontal Roller bed 45 rotated and slowly cooled there and dried (see Fig. 4f).
- gas bottle 1 thermoplastic powder, e.g. Rilsan, a polyamide 11.
- gas bottle 1 thermoplastic powder, e.g. Rilsan, a polyamide 11.
- the gas bottle provided with the adhesive primer 1 in an oven, e.g. another air circulation furnace, (not shown) heated to a temperature of 230 ° C. Is this temperature in the entire bottle (i.e. also on the inner surface) is reached, the gas bottle 1 is the furnace removed, and then any newly created Primer / thinner vapors (primer mist) again using a thin tube, through which compressed air flows, from the gas bottle 1 blown out.
- the gas bottle 1 is now in the jaws 17, 18th of the coating device clamped about its longitudinal axis 21 rotated (approx.
- the gas bottle 1 with the bottle opening 4 brought down to an angle of 10 ° to the horizontal, to coat the shoulder and neck area, and one for a predetermined time, e.g. 10 s, left in this position (s. 5c), namely with continued rotation around the longitudinal axis of the bottle, whereupon the gas bottle 1 with the downward Bottle opening brought into a vertical position and - still under rotation - is opened after approx. 10 s (see Fig. 5d).
- the speed of the gas bottle 1 when rotating about its longitudinal axis should apply during the application of the plastic coating be about 60 rpm, so as uniform as possible Coating takes place.
- the commissioning and decommissioning of the turning or. Swivel drive 39, 14 can be manually or via a Programmable control take place, which on different Bottle sizes or volumes is coordinated.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Electrostatic Spraying Apparatus (AREA)
- Coating Apparatus (AREA)
Abstract
Description
Claims (19)
- Verfahren zur Innenbeschichtung einer Gasflasche (1), bei dem:die Gasflasche (1) erwärmt wird; undin die Gasflasche (1) thermoplastischer Kunststoff in Pulverform durch Schwerkraft eingebracht wird;wobei die Gasflasche (1) zur Verteilung des Kunststoffpulvers über ihre Innenwand um ihre Längsachse (21) gedreht sowie um eine quer zur Längsachse verlaufende Achse (16) in unterschiedliche Lagen gebracht wird;und wobei das Kunststoffpulver schmilzt und nach einer darauffolgenden Abkühlung der Gasflasche an der Innenwand der Gasflasche eine Korrosionsschutz-Schicht bildet.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß während des Drehens der Gasflasche (1) in einer ersten Schräglage der Gasflasche (1) ein Teil des Kunststoffpulvers und in einer zweiten Schräglage der Rest eingebracht wird.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die Gasflasche (1) mit ihrer Längsachse (21) in Schräglagen von 30° bzw. 60° zur Horizontalen gebracht wird.
- Verfahren nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß in der ersten Schräglage die Hälfte des Kunststoffpulvers eingebracht wird, worauf unmittelbar danach die restliche Hälfte des Kunststoffpulvers in der zweiten Schräglage eingebracht wird.
- Verfahren nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß nach der vollständigen Einbringung des Kunststoffpulvers die Flaschenöffnung verschlossen und die Gasflasche (1), während sie weiter gedreht wird, mit der Flaschenöffnung nach unten gerichtet in eine Schräglage, z.B. von 10°, zur Horizontalen gebracht und auf eine vorbestimmte Zeit in dieser Lage belassen wird, worauf die Gasflasche (1) in eine senkrechte Lage mit nach unten gerichteter Flaschenöffnung gebracht und der Verschluß der Flaschenöffnung wieder entfernt wird.
- Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Innenwand der Gasflasche (1) vor der Beschichtung durch Sandstrahlen vorbehandelt wird.
- Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Innenwand der Gasflasche (1) vor dem Beschichten mit Kunststoffpulver mit einem Haftgrund versehen, wie insbesondere einer Mischung aus einem Primer und einem Verdünner, wobei der Haftgrund ebenfalls durch Schwerkraft in die auf eine im Vergleich zur Temperatur bei der Einbringung des Kunststoffpulvers niedrigere Temperatur vorgewärmte Gasflasche (1) eingebracht wird, und hierbei die Gasflasche (1) zur Verteilung des Haftgrundes über ihre Innenwand um ihre Längsachse (21) gedreht sowie um eine quer zur Längsachse verlaufende Achse (16) in unterschiedliche Lagen gebracht wird.
- Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß in einer vertikalen Lage der Gasflasche (1) eine erste Teilmenge des Haftgrundes eingebracht wird, worauf die Gasflasche (1) um ihre Längsachse (21) gedreht und währenddessen die restliche Menge des Haftgrundes eingebracht und die Flaschenöffnung verschlossen wird.
- Verfahren nach Anspruch 8, dadurch gekennzeichnet, daß die erste Teilmenge 1/5 der Gesamtmenge des Haftgrundes beträgt.
- Verfahren nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß nach der vollständigen Einbringung des Haftgrundes die Gasflasche (1), während sie gedreht wird, eine vorbestimmte Zeit lang, z.B. 10 s, in eine Pendelbewegung um die quer zur Längsachse verlaufende Achse versetzt wird, darauf eine vorbestimmte Zeitlang, z.B. wiederum 10 s, in die waagrechte Lage und anschließend in eine Schräglage mit nach unten gerichteter Flaschenöffnung gebracht wird.
- Verfahren nach Anspruch 10, dadurch gekennzeichnet, daß eine vorbestimmte Zeit lang, z.B. 20 s, nach dem Schwenken der Gasflasche (1) in die Schräglage die Gasflasche (1) in die vertikale Lage mit der Flaschenöffnung nach unten gebracht und geöffnet wird, um etwaigen überschüssigen Haftgrund ausrinnen zu lassen.
- Verfahren nach Anspruch 11, dadurch gekennzeichnet, daß nach dem Ausrinnen von überschüssigem Haftgrund in die Gasflasche (1) Luft eingeblasen wird, bis kein Haftgrund-Nebel mehr entweicht, und anschließend die Gasflasche (1) über einen vorbestimmten Zeitraum, z.B. 2 h, in horizontaler Lage um ihre Längsachse (21) gedreht und getrocknet wird.
- Verfahren nach den Ansprüchen 7 bis 12, dadurch gekennzeichnet, daß unmittelbar vor dem Einbringen des Kunststoffpulvers in die Gasflasche (1) nochmals Luft in die Gasflasche (1) eingeblasen wird.
- Vorrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß an einem Gestell (6) ein Träger (7) schwenkbar gelagert ist und der Träger (7) eine Einspanneinrichtung für die Gasflasche (1) drehbar lagert, wobei dem Träger (7) ein Schwenkantrieb (14) und der Einspanneinrichtung (8) ein Drehantrieb (39) zugeordnet ist.
- Vorrichtung nach Anspruch 14, dadurch gekennzeichnet, daß der Träger (7) als Schiene (15) mit einer senkrecht abstehenden Welle (13) ausgebildet ist, welche im Gestell (6) gelagert ist, und an der der Schwenkantrieb (14) angreift.
- Vorrichtung nach Anspruch 14 oder 15, dadurch gekennzeichnet, daß der Träger (7) zwei Spannbacken (17, 18) für den Boden- bzw. Halsabschnitt (2, 3) der Gasflasche (1) trägt, wobei zumindest einer der Spannbacken (17, 18) längsverstellbar ist und jeder Spannbacken (17, 18) ein Einspannelement (19, 20) um eine gemeinsame Drehachse (21) drehbar lagert, wobei der Drehantrieb (39) einem der Einspannelemente (19, 20) zugeordnet ist.
- Vorrichtung nach Anspruch 16, dadurch gekennzeichnet, daß die Einspannelemente (19, 20) über thermisch isolierende Scheiben (34, 35) mit Lagerwellen (36, 37) verbunden sind, welche in den Spannbacken (17, 18) drehbar gelagert sind.
- Vorrichtung nach Anspruch 17, dadurch gekennzeichnet, daß die dem Halsabschnitt (3) der Gasflasche (1) zugeordnete Lagerwelle (37) als Hohlwelle ausgebildet ist, und daß das zugeordnete Einspannelement (20) und dessen Isolierscheibe (35) mit einer zentrischen Bohrung versehen sind, deren Durchmesser mit dem Innendurchmesser der Hohlwelle übereinstimmt.
- Vorrichtung nach Anspruch 16, dadurch gekennzeichnet, daß die Spannbacken (17, 18) über Laufrollen (23) auf Laufschienen (22) des Trägers (7) längsverschiebbar angeordnet und mittels zumindest eines Spindeltriebes (24) in ihrem Abstand zueinander verstellbar sind.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT503/96 | 1996-03-18 | ||
AT50396U AT1592U1 (de) | 1996-08-29 | 1996-08-29 | Verfahren und vorrichtung zur innenbeschichtung von gasflaschen |
AT50396 | 1996-08-29 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0826433A2 true EP0826433A2 (de) | 1998-03-04 |
EP0826433A3 EP0826433A3 (de) | 2000-05-24 |
EP0826433B1 EP0826433B1 (de) | 2004-03-17 |
Family
ID=3492338
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19970890171 Expired - Lifetime EP0826433B1 (de) | 1996-08-29 | 1997-08-28 | Verfahren und Vorrichtung zur Innenbeschichtung einer Gasflasche |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0826433B1 (de) |
AT (1) | AT1592U1 (de) |
DE (1) | DE59711407D1 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102502173A (zh) * | 2011-10-12 | 2012-06-20 | 张家港市嘉华炉业有限公司 | 钢制气瓶的输送装置 |
CN102620560A (zh) * | 2012-04-01 | 2012-08-01 | 张家港市嘉华炉业有限公司 | 天然气连续步进式两用固化炉 |
WO2012124253A1 (ja) * | 2011-03-15 | 2012-09-20 | 株式会社 東芝 | 塗布装置および塗布方法 |
WO2013083169A1 (en) * | 2011-12-05 | 2013-06-13 | Blue Wave Co S.A. | Multilayer pressure vessel |
WO2013083653A3 (en) * | 2011-12-05 | 2013-11-07 | Blue Wave Co S.A. | Polymeric coated cng tank and method of preparation |
CN110180719A (zh) * | 2019-05-07 | 2019-08-30 | 陕西昕宇表面工程有限公司 | 一种桶状工件内腔的自动喷涂装置 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT515917B1 (de) * | 2014-11-24 | 2016-01-15 | Mario Paul Stojec | Verfahren und vorrichtung zur innenbeschichtung von druckbehältern |
WO2024069661A1 (en) * | 2022-09-28 | 2024-04-04 | Walter Tosto S.P.A. | Method of internal lining of containers and lining apparatus |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD159529A1 (de) * | 1981-06-17 | 1983-03-16 | Klaus Deutscher | Verfahren zur plastbeschichtung von druckgasbehaeltern mit rauhen innenflaechen |
WO1994016956A1 (en) * | 1993-01-26 | 1994-08-04 | Liquid Carbonic Corporation | Method for coating the interior surface of a cylinder |
DE4444553A1 (de) * | 1993-12-27 | 1995-06-29 | Mannesmann Ag | Verfahren zur Vorbehandlung eines metallischen rotationssymmetrischen Hohlkörpers |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5037600A (en) * | 1990-04-30 | 1991-08-06 | Amsted Industries Incorporated | Method of applying a polyolefin coating to pipe |
DE4035790C1 (de) * | 1990-11-10 | 1991-05-08 | Mtu Muenchen Gmbh |
-
1996
- 1996-08-29 AT AT50396U patent/AT1592U1/de not_active IP Right Cessation
-
1997
- 1997-08-28 EP EP19970890171 patent/EP0826433B1/de not_active Expired - Lifetime
- 1997-08-28 DE DE59711407T patent/DE59711407D1/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD159529A1 (de) * | 1981-06-17 | 1983-03-16 | Klaus Deutscher | Verfahren zur plastbeschichtung von druckgasbehaeltern mit rauhen innenflaechen |
WO1994016956A1 (en) * | 1993-01-26 | 1994-08-04 | Liquid Carbonic Corporation | Method for coating the interior surface of a cylinder |
DE4444553A1 (de) * | 1993-12-27 | 1995-06-29 | Mannesmann Ag | Verfahren zur Vorbehandlung eines metallischen rotationssymmetrischen Hohlkörpers |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012124253A1 (ja) * | 2011-03-15 | 2012-09-20 | 株式会社 東芝 | 塗布装置および塗布方法 |
CN102502173A (zh) * | 2011-10-12 | 2012-06-20 | 张家港市嘉华炉业有限公司 | 钢制气瓶的输送装置 |
WO2013083169A1 (en) * | 2011-12-05 | 2013-06-13 | Blue Wave Co S.A. | Multilayer pressure vessel |
WO2013083653A3 (en) * | 2011-12-05 | 2013-11-07 | Blue Wave Co S.A. | Polymeric coated cng tank and method of preparation |
WO2013083651A3 (en) * | 2011-12-05 | 2013-12-12 | Blue Wave Co S.A. | Rotational moulding method |
CN104105919A (zh) * | 2011-12-05 | 2014-10-15 | 蓝波股份有限公司 | 滚塑成型方法 |
CN102620560A (zh) * | 2012-04-01 | 2012-08-01 | 张家港市嘉华炉业有限公司 | 天然气连续步进式两用固化炉 |
CN110180719A (zh) * | 2019-05-07 | 2019-08-30 | 陕西昕宇表面工程有限公司 | 一种桶状工件内腔的自动喷涂装置 |
Also Published As
Publication number | Publication date |
---|---|
EP0826433B1 (de) | 2004-03-17 |
EP0826433A3 (de) | 2000-05-24 |
AT1592U1 (de) | 1997-08-25 |
DE59711407D1 (de) | 2004-04-22 |
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