EP0874727A1 - Procede de production d'un corps creux pour pression interieure ou exterieure elevee - Google Patents

Procede de production d'un corps creux pour pression interieure ou exterieure elevee

Info

Publication number
EP0874727A1
EP0874727A1 EP97914067A EP97914067A EP0874727A1 EP 0874727 A1 EP0874727 A1 EP 0874727A1 EP 97914067 A EP97914067 A EP 97914067A EP 97914067 A EP97914067 A EP 97914067A EP 0874727 A1 EP0874727 A1 EP 0874727A1
Authority
EP
European Patent Office
Prior art keywords
inner container
pressure
hollow body
reinforcement
high internal
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Withdrawn
Application number
EP97914067A
Other languages
German (de)
English (en)
Inventor
Jürgen RABE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0874727A1 publication Critical patent/EP0874727A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F17C1/16—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of plastics materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/24—Making hollow objects characterised by the use of the objects high-pressure containers, e.g. boilers, bottles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/02—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • B29C70/446—Moulding structures having an axis of symmetry or at least one channel, e.g. tubular structures, frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D22/00—Producing hollow articles
    • B29D22/003—Containers for packaging, storing or transporting, e.g. bottles, jars, cans, barrels, tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/001—Shaping in several steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/14—Dipping a core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06—Injection blow-moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7154—Barrels, drums, tuns, vats
    • B29L2031/7156—Pressure vessels
    • 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
    • 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
    • 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
    • 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
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • 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
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • F17C2203/0673—Polymers
    • 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
    • F17C2209/21—Shaping processes
    • F17C2209/2109—Moulding

Definitions

  • the present invention relates to a method for producing a hollow body for high internal or external pressure according to the preamble of claim 1.
  • Known hollow bodies for high internal pressure are known in the form of steel gas cylinders for technical gases such as oxygen, hydrogen, nitrogen, helium or the like, for example for welding purposes. These hollow bodies are designed for pressures up to over 200 bar. High-pressure bottles of this type must be checked for strength at certain intervals, since the weld seams in particular represent a particular source of danger. High pressure tanks made of steel or aluminum are also used in the automotive industry, for example for inflating air bags or for storing natural gas (CNG) or hydrogen (H 2 ) for alternative drives. These high pressure tanks are relatively heavy and expensive to manufacture for the required operating pressures of up to about 600 bar and the specified burst pressure of up to about 700 bar.
  • CNG natural gas
  • H 2 hydrogen
  • the object of the present invention is to be able to produce a hollow body for very high internal or external pressures economically, economically in terms of production technology, inexpensively and with low weight.
  • the gas-tight layer can be made relatively thin and also made of plastic and can be produced very inexpensively with a low weight.
  • FIG. 1 is a side view of a hollow body according to the invention, partly in section,
  • Fig. 1 denotes a hollow body with an opening 2.
  • the opening 2 is sealed gas-tight with a pressure-resistant membrane 3.
  • the hollow body 1 consists of an inner gastight preform 4 which has undergone the processes listed below and an outer layer 5 which surrounds it without inclusion and which essentially determines the compressive strength of the hollow body 1.
  • the hollow body 1 is produced by the following process steps according to the invention:
  • a preform 6, a so-called preform, is produced for an inner container 4 to be produced therefrom from metal or in particular from a gas-tight plastic, that is to say highly resistant to gas permeation.
  • a gas-tight plastic that is to say highly resistant to gas permeation.
  • the preform 6 has a size of only about 1/3 or 1/4 the size of the inner container 4 to be produced or even less.
  • the preform 6 has a handling part 7, for example for holding and manipulating the inner container 4 and a section 8 to be expanded, which later forms the actual inner container 4.
  • Method step 3 inserted into an at least two-part first mold and inflated or expanded by applying a high internal pressure to the shape of the inner container 4.
  • Molecular orientation occurs in the plastic, which significantly increases the strength of the plastic.
  • the inner container 4 obtained in this way can then be provided with a reinforcement 9 in an optional method step 4), depending on the required load capacity, which is indicated in FIG. 1 by the cross hatching.
  • This reinforcement 9 can be made of metal, for example made of high-strength steel, chrome steel, chrome-nickel steel, copper, brass, bronze or of another high-strength metal or a metal alloy, for example in the manner of cans as are commercially available for lemonades or beer. or consist of a high-strength plastic.
  • the reinforcement 9 is pushed in the form of wire, fabric, braid, as a corrugated tube, fabric hose, in a spiral shape or the like over the inner container 4 or wound onto the inner container 4.
  • a high internal pressure is generated in the inner container 4, which completely or almost completely prevents the same from being deformed.
  • a process step 5 the inner container 4 or the reinforced inner container 4 is inserted into a further at least two-part form which is larger than the inner container 4 or the reinforced inner container 4 and encapsulated therein with a heavy-duty plastic 10.
  • the optionally reinforced inner container 4 can also be immersed in a polymerizable and hardening plastic made in particular of epoxy or polyester resin. It can also be wet-wrapped with a reinforcing material that is soaked or surrounded with a polymerizable and hardening plastic compound. In both of these cases, the polymerization and curing take place while the inner container 4 is rotating in the horizontal position thereof.
  • the encapsulation or wet wrapping takes place at such high internal pressure in the inner container 4 that the external pressure does not deform it, or at most only slightly deforms it, in particular it is not pressed in.
  • a plastic is preferably used, the degree of shrinkage of which is equal to or greater than that of the preform 6. Threads, fabrics, braids, felt or the like made of glass and / or carbon and / or minerals and / or plastic, in particular aramid, are suitable.
  • the overmolded, dipped or wet-wrapped and possibly also reinforced inner container 4 is introduced into a further, slightly larger, at least two-part form in the still warm-elastic state or after heating to a corresponding temperature and in the inner container 4 creates a high internal pressure.
  • the structure expands slightly, a firm connection of the molded plastic or applied by dipping or wet wrapping with the inner container 4 being achieved.
  • the hollow body 1 thus formed is removed in process step 7) cooled down.
  • the cooling can be controlled according to certain criteria according to a certain curve in order to achieve the highest possible strength of the hollow body 1 and not to deteriorate the strength of the inner container 4.
  • test pressure is approximately 120% to 180% of the operating pressure, which can reach up to 600 bar.
  • the pressure is suitably chosen so that it is about 30% to 80% less than the bursting pressure, which can reach up to 700 bar.
  • the burst pressure can e.g. 15% to 200% greater than the operating pressure.
  • method step 5 is replaced by the following method steps:
  • the expanded inner container 4 is surrounded or wrapped with a reinforcement, which is impregnated with an impregnating agent made of a hardenable plastic or - similar to the so-called known prepregs. Threads, fabrics, braids, felt or the like made of glass, carbon, mineral and / or plastic fibers are also used for reinforcement. If plastic is used, aramid is preferably used. When reinforcing, especially when winding, such a high internal pressure is generated that a deformation of the inner container 4 is prevented or almost prevented.
  • the impregnating agent is polymerized and hardened or hardened by suitable measures, for example by heating.
  • the degree of shrinkage during polymerisation and hardening or hardening and / or during cooling is preferably equal to or greater than that of the material or in the case of a multi-layer construction of the materials of the inner container 4. It can namely be advantageous to produce the inner container 4 from several layers of material, the individual layers are firmly connected.
  • Polyethylene (PE) and / or polyethylene terephthalate (PETP) are preferably suitable as materials for this.
  • Epoxy and / or polyester resin is preferably used as the material for the overmolded outer layer 5 or for the impregnating agent.
  • the reinforced inner container 4 is impregnated with a hardenable plastic or the inner container 4 or the reinforced inner container 4 is immersed in a hardenable plastic and then polymerized and cured with constant rotation of the inner container 4 in its horizontal position.
  • Process steps 1) to 9) can be carried out in individual steps, or - as indicated in FIG. 3 - in a cyclic process or - as shown schematically in FIG. 4 - in a linear process sequence.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

Pour produire un corps creux (1) comportant au moins une ouverture (3) pour pression intérieure ou extérieure élevée, une ébauche (6) (ou préforme) en métal ou notamment en plastique est élargie à l'aide d'une pression intérieure élevée pour former un récipient intérieur (4) et est éventuellement à l'extérieur, armée, recouverte par extrusion, trempée ou enrobée sous pression intérieure élevée. A cet effet, la pression intérieure est choisie de manière que pendant la formation de l'armature, le recouvrement par extrusion, la trempe ou l'enrobage, il n'intervienne qu'une légère déformation du récipient intérieur (4).
EP97914067A 1996-01-19 1997-01-19 Procede de production d'un corps creux pour pression interieure ou exterieure elevee Withdrawn EP0874727A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19601761 1996-01-19
DE1996101761 DE19601761A1 (de) 1996-01-19 1996-01-19 Verfahren zur Herstellung eines Hohlkörpers für hohen Innen- oder Außendruck
PCT/DE1997/000081 WO1997026128A1 (fr) 1996-01-19 1997-01-19 Procede de production d'un corps creux pour pression interieure ou exterieure elevee

Publications (1)

Publication Number Publication Date
EP0874727A1 true EP0874727A1 (fr) 1998-11-04

Family

ID=7783126

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97914067A Withdrawn EP0874727A1 (fr) 1996-01-19 1997-01-19 Procede de production d'un corps creux pour pression interieure ou exterieure elevee

Country Status (4)

Country Link
EP (1) EP0874727A1 (fr)
AU (1) AU2148897A (fr)
DE (1) DE19601761A1 (fr)
WO (1) WO1997026128A1 (fr)

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CN108213166A (zh) * 2018-01-08 2018-06-29 伟业精密科技（惠州）有限公司 安全气囊气体发生器壳体反向拉伸工艺

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FR2772459A1 (fr) * 1998-05-14 1999-06-18 Commissariat Energie Atomique Procede de fabrication d'une enveloppe etanche et d'un reservoir etanche de stockage, et reservoir etanche de stockage
DE102004003749A1 (de) * 2004-01-23 2005-08-18 Thomas Dr. Bäumer Verfahren und Vorrichtung zur Herstellung eines zylindrischen Hohlkörpers aus faserverstärktem Kunststoff "Hohlkörper"
DE602005011672D1 (de) * 2004-12-29 2009-01-22 Giandomenico Gonella Verfahren zum kombinieren eines ersten materials mit einem verbundmaterial zur herstellung eines hohlkörpers und gemäss diesem verfahren hergestelltes behälterelement
DE102008057138A1 (de) * 2008-11-13 2010-05-20 Novapax Maschinenbau Gmbh & Co. Kg Verfahren zur Herstellung eines Mehrschicht-Kunststoffhohlkörpers und Spritzblasmaschine
DE102010008263B4 (de) * 2010-02-17 2012-02-16 Ute Abmayr Druckbehälter und Verfahren zur Herstellung eines Druckbehälters
FR3120326B1 (fr) * 2021-03-02 2024-02-23 Air Liquide Procédé de fabrication d’un réservoir composite de fluide sous pression et réservoir

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