WO1992009507A1 - Container structure - Google Patents

Container structure Download PDF

Info

Publication number
WO1992009507A1
WO1992009507A1 PCT/FI1991/000350 FI9100350W WO9209507A1 WO 1992009507 A1 WO1992009507 A1 WO 1992009507A1 FI 9100350 W FI9100350 W FI 9100350W WO 9209507 A1 WO9209507 A1 WO 9209507A1
Authority
WO
WIPO (PCT)
Prior art keywords
container structure
mould
container
layer
composite material
Prior art date
Application number
PCT/FI1991/000350
Other languages
French (fr)
Inventor
Timo Laurio
Original Assignee
Tekninen Toimisto Timo Laurio Ky
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 Tekninen Toimisto Timo Laurio Ky filed Critical Tekninen Toimisto Timo Laurio Ky
Publication of WO1992009507A1 publication Critical patent/WO1992009507A1/en

Links

Classifications

    • 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
    • B29C53/80—Component parts, details or accessories; Auxiliary operations
    • B29C53/82—Cores or mandrels
    • B29C53/821—Mandrels especially adapted for winding and joining
    • B29C53/822—Single use mandrels, e.g. destructible, becoming part of the wound articles
    • 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
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
    • B29C53/602—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels for tubular articles having closed or nearly closed ends, e.g. vessels, tanks, containers
    • 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
    • B29C53/80—Component parts, details or accessories; Auxiliary operations
    • B29C53/82—Cores or mandrels
    • B29C53/821—Mandrels especially adapted for winding and joining
    • B29C53/824—Mandrels especially adapted for winding and joining collapsible, e.g. elastic or inflatable; with removable parts, e.g. for regular shaped, straight tubular articles
    • 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
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/02—Wall construction
    • B65D90/029—Wound structures

Definitions

  • This invention relates to a container structure for the transport of liquid and powdery substances, especially poisonous, inflammable, corrosive and other such dangerous substances.
  • Stringent requirements are imposed on transport containers for substances of the above type firstly due to the properties of such substances and secondly to ensure the safety and reliability of transport.
  • Known containers are usually made of metal plate, such as steel, profile steel, acid-proof steel or aluminium.
  • metal plate such as steel, profile steel, acid-proof steel or aluminium.
  • several laborious steps are required, such as cutting, bending, rolling, shaping, fitting together and joining the plates, the joining being in most cases carried out by welding from both the inside and the outside of the container. It is clear that this is time-consuming as well as laborious, and, of course, increases the cost of manufacture of the container.
  • Another major disadvantage is the substan ⁇ tial waste of material.
  • this type of container should have heat insulation prop ⁇ erties, whereby a heat-insulation layer also has to be provided around the container, and this layer has to be covered with an external shell structure. This further increases the manufacturing steps and the cost of manufacture.
  • the object of the present invention is to provide a container structure which avoids the above- mentioned disadvantages and is advantageous especial ⁇ ly in view of the use of material and the manufactur ⁇ ing steps.
  • This object is achieved by means of a con ⁇ tainer structure according to the invention, which is characterized in that the container structure com ⁇ prises a layer of composite material wound around a mould, the layer being integral substantially over the entire container structure.
  • the container structure according to the inven ⁇ tion is based on the idea of producing the material for the container structure in connection with the manufacture of the container structure itself and integrating the numerous manufacturing steps of the prior art manufacturing technique. Thus there is no substantial waste of material, and the manufacture is rapid and simple.
  • the main components of the com ⁇ posite material to be used can be varied according to the properties required from the container struc ⁇ ture in each particular case.
  • prop ⁇ erties associated with the use of the container structure such as the strength, lightness and chem ⁇ ical resistance, can be made such as required.
  • Figure 1 illustrates schematically the prin ⁇ cipal features of the manufacturing arrangement of the container structure
  • Figure 2 shows an example of a container struc ⁇ ture which is an alternative for the conventional simple container structure.
  • the arrangement shown in Figure 1 for the manufacture of a container structure comprises a winding apparatus having a shaft 1 supported at the ends and mounted rotatably for supporting a mould (not shown) for a container structure A.
  • the shaft is mounted at one end in a support spindle 2 and at the other end attached to a drive spindle 3 effecting the rotatory movement of the shaft.
  • Power may be supplied to the drive spindle e.g. by a conventional electric motor 4.
  • An apparatus for feeding composite material is provided in connection with the winding apparatus, which feeding apparatus mainly comprises fibre reels 5, and a tank 6 for a liquid binding agent, i.e. a matrix material.
  • Fibre material is fed from said reels through the binding agent tank to form material for the container structure, and the container struc- ture material is applied around the mould for the container structure A in accordance with a desired application pattern in such a way that the container structure is constructed evenly around the mould.
  • the apparatus for feeding the composite material is thus mounted both vertically and sidewardly movably with respect to the winding apparatus.
  • the feeding apparatus can be placed at an angle with respect to the shaft of the winding apparatus to make it easier to follow the various shapes of the mould during winding.
  • the mould can form part of the finished con ⁇ tainer structure A, whereby it is preferably of thermoplastic.
  • a compressible mould which is expanded to a desired size for forming the container structure around it.
  • the mould is compressed at the final stage of the manufacturing process of the container struc ⁇ ture after the composite material has hardened suf ⁇ ficiently, and it is preferably removed through an opening 7 left at one end of the container structure in connection with the winding.
  • the opening can be easily closed subsequently with the composite material used. In this way the cost of the mould is minimized as the mould can be used several times.
  • the container structure made as described above can be heat-insulated easily by applying a layer of heat insulation material around a so-called inner container, which is made first, and the insulation layer is then coated with a new layer of composite material.
  • the container structure so obtained is more durable and steadier than previously.
  • the container structure made as described above is even and integral throughout, especially around equipment fittings, filling and emptying openings, manholes and installation and fastening means, for instance.
  • the con ⁇ tainer structure Being made of a composite material, the con ⁇ tainer structure is considerably lighter than a con- ventional container structure of metal. This becomes apparent on comparing the specific weights of the manufacturing materials: steel about 8.0 kg/dm 3 , aluminium about 2.7 kg/dm 3 , glass fibre about 1.8 kg/dm 3 and carbon fibre about 1.0 kg/dm 3 .
  • the fibre material may also be e.g. KEVLAR R fibre.
  • Plastic is used as the binding agent, i.e. matrix material.
  • FIG. 2 shows one possible alternative con ⁇ tainer structure, which is easy to manufacture as described above.
  • This container structure comprises three compartments I, II, III. It is manufactured by first making the compartment I as described above, whereafter additional moulds for the compartments II and III are fitted to the finished compartment I. The compartments II and III are made by continuing the winding similarly as described above by making the compartments II and III as extensions of the compart ⁇ ment 1.
  • the container structure according to the invention can be made in practically any shape without substantially complicating the manufacturing process.
  • the drawing and the description related to it are only intended to illustrate the basic idea of the invention. In its details the container structure according to the invention may vary within the scope of the claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulding By Coating Moulds (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

The invention relates to a container structure for the transport of liquid and powdery substances, especially poisonous, inflammable, corrosive and other such dangerous substances. To make the manufacture as easy as possible and to achieve a light and durable structure, the container structure (A) comprises a layer of composite material wound around a mould.

Description

Container structure
This invention relates to a container structure for the transport of liquid and powdery substances, especially poisonous, inflammable, corrosive and other such dangerous substances.
Stringent requirements are imposed on transport containers for substances of the above type firstly due to the properties of such substances and secondly to ensure the safety and reliability of transport. Known containers are usually made of metal plate, such as steel, profile steel, acid-proof steel or aluminium. When the container is made of metal plate, several laborious steps are required, such as cutting, bending, rolling, shaping, fitting together and joining the plates, the joining being in most cases carried out by welding from both the inside and the outside of the container. It is clear that this is time-consuming as well as laborious, and, of course, increases the cost of manufacture of the container. Another major disadvantage is the substan¬ tial waste of material.
In many cases it is also required that this type of container should have heat insulation prop¬ erties, whereby a heat-insulation layer also has to be provided around the container, and this layer has to be covered with an external shell structure. This further increases the manufacturing steps and the cost of manufacture.
The object of the present invention is to provide a container structure which avoids the above- mentioned disadvantages and is advantageous especial¬ ly in view of the use of material and the manufactur¬ ing steps. This object is achieved by means of a con¬ tainer structure according to the invention, which is characterized in that the container structure com¬ prises a layer of composite material wound around a mould, the layer being integral substantially over the entire container structure. The container structure according to the inven¬ tion is based on the idea of producing the material for the container structure in connection with the manufacture of the container structure itself and integrating the numerous manufacturing steps of the prior art manufacturing technique. Thus there is no substantial waste of material, and the manufacture is rapid and simple. The main components of the com¬ posite material to be used, that is, mainly a binding agent and a fibre material, can be varied according to the properties required from the container struc¬ ture in each particular case. In other words, prop¬ erties associated with the use of the container structure, such as the strength, lightness and chem¬ ical resistance, can be made such as required. In the following one illustrating embodiment of the invention will be described more closely with reference to the attached drawing, in which
Figure 1 illustrates schematically the prin¬ cipal features of the manufacturing arrangement of the container structure; and
Figure 2 shows an example of a container struc¬ ture which is an alternative for the conventional simple container structure.
The arrangement shown in Figure 1 for the manufacture of a container structure comprises a winding apparatus having a shaft 1 supported at the ends and mounted rotatably for supporting a mould (not shown) for a container structure A. The shaft is mounted at one end in a support spindle 2 and at the other end attached to a drive spindle 3 effecting the rotatory movement of the shaft. Power may be supplied to the drive spindle e.g. by a conventional electric motor 4. An apparatus for feeding composite material is provided in connection with the winding apparatus, which feeding apparatus mainly comprises fibre reels 5, and a tank 6 for a liquid binding agent, i.e. a matrix material. Fibre material is fed from said reels through the binding agent tank to form material for the container structure, and the container struc- ture material is applied around the mould for the container structure A in accordance with a desired application pattern in such a way that the container structure is constructed evenly around the mould. The apparatus for feeding the composite material is thus mounted both vertically and sidewardly movably with respect to the winding apparatus. In addition, it is preferable that the feeding apparatus can be placed at an angle with respect to the shaft of the winding apparatus to make it easier to follow the various shapes of the mould during winding.
The mould can form part of the finished con¬ tainer structure A, whereby it is preferably of thermoplastic. On the other hand, it is also possible to use a compressible mould which is expanded to a desired size for forming the container structure around it. The mould is compressed at the final stage of the manufacturing process of the container struc¬ ture after the composite material has hardened suf¬ ficiently, and it is preferably removed through an opening 7 left at one end of the container structure in connection with the winding. The opening can be easily closed subsequently with the composite material used. In this way the cost of the mould is minimized as the mould can be used several times. The container structure made as described above can be heat-insulated easily by applying a layer of heat insulation material around a so-called inner container, which is made first, and the insulation layer is then coated with a new layer of composite material. In addition to efficient insulation, the container structure so obtained is more durable and steadier than previously.
The container structure made as described above is even and integral throughout, especially around equipment fittings, filling and emptying openings, manholes and installation and fastening means, for instance.
Being made of a composite material, the con¬ tainer structure is considerably lighter than a con- ventional container structure of metal. This becomes apparent on comparing the specific weights of the manufacturing materials: steel about 8.0 kg/dm3, aluminium about 2.7 kg/dm3, glass fibre about 1.8 kg/dm3 and carbon fibre about 1.0 kg/dm3. The fibre material may also be e.g. KEVLARR fibre. Plastic is used as the binding agent, i.e. matrix material.
Figure 2 shows one possible alternative con¬ tainer structure, which is easy to manufacture as described above. This container structure comprises three compartments I, II, III. It is manufactured by first making the compartment I as described above, whereafter additional moulds for the compartments II and III are fitted to the finished compartment I. The compartments II and III are made by continuing the winding similarly as described above by making the compartments II and III as extensions of the compart¬ ment 1. As is apparent, the container structure according to the invention can be made in practically any shape without substantially complicating the manufacturing process. The drawing and the description related to it are only intended to illustrate the basic idea of the invention. In its details the container structure according to the invention may vary within the scope of the claims.

Claims

Claims :
1. A container structure for the transport of liquid and powdery substances, especially poisonous, inflammable, corrosive and other such dangerous substances, c h a r a c t e r i z e d in that the container structure (A) comprises a layer of com¬ posite material wound around a mould, the layer being integral substantially over the entire container structure.
2. A container structure according to claim 1, c h a r a c t e r i z e d in that the mould is a compressible rubber or metal structure, whereby the mould is removable from the container structure (A), preferably through an opening (7) left at its one end in connection with winding.
3. A container structure according to claim 1, c h a r a c t e r i z e d in that the mould forms part or the container structure (A) and is preferably of thermoplastic.
4. A container structure according to claim 1, c h a r a c t e r i z e d in that the composite material mainly comprises a binding agent preferably of plastic and a fibre material, such as carbon or glass fibre.
PCT/FI1991/000350 1990-11-26 1991-11-25 Container structure WO1992009507A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI905816A FI93195C (en) 1990-11-26 1990-11-26 Säiliörakenne
FI905816 1990-11-26

Publications (1)

Publication Number Publication Date
WO1992009507A1 true WO1992009507A1 (en) 1992-06-11

Family

ID=8531462

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1991/000350 WO1992009507A1 (en) 1990-11-26 1991-11-25 Container structure

Country Status (3)

Country Link
AU (1) AU8920091A (en)
FI (1) FI93195C (en)
WO (1) WO1992009507A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5758795A (en) * 1993-08-05 1998-06-02 Edo Corporation, Fiber Seience Division Dual chamber composite pressure vessel and method of fabrication thereof
WO1999022929A1 (en) * 1997-10-31 1999-05-14 Phoenix Aktiengesellschaft Method for producing a rotationally symmetric body
US5918759A (en) * 1995-07-27 1999-07-06 Apparate-Und Chemieanlagenbau Gmbh Tank or silo vessel made of fiber-reinforced plastic
EP2719639A1 (en) * 2012-10-15 2014-04-16 Flax Field Trading B.V. Liquid tank container and method therefor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3504820A (en) * 1966-04-01 1970-04-07 Union Carbide Corp Spaced wall receptacle having wound composite insulation between the walls
FI81545B (en) * 1983-05-09 1990-07-31 Dow Chemical Co Cryogenic vessel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3504820A (en) * 1966-04-01 1970-04-07 Union Carbide Corp Spaced wall receptacle having wound composite insulation between the walls
FI81545B (en) * 1983-05-09 1990-07-31 Dow Chemical Co Cryogenic vessel

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5758795A (en) * 1993-08-05 1998-06-02 Edo Corporation, Fiber Seience Division Dual chamber composite pressure vessel and method of fabrication thereof
US5865923A (en) * 1993-08-05 1999-02-02 Edo Corporation, Fiber Science Division Method of fabricating a dual chamber composite pressure vessel
US5918759A (en) * 1995-07-27 1999-07-06 Apparate-Und Chemieanlagenbau Gmbh Tank or silo vessel made of fiber-reinforced plastic
WO1999022929A1 (en) * 1997-10-31 1999-05-14 Phoenix Aktiengesellschaft Method for producing a rotationally symmetric body
US6547907B1 (en) 1997-10-31 2003-04-15 Phoenix Aktiengesellschaft Method for producing a rotationally symmetric body
EP2719639A1 (en) * 2012-10-15 2014-04-16 Flax Field Trading B.V. Liquid tank container and method therefor
NL2009634C2 (en) * 2012-10-15 2014-04-16 Flax Field Trading B V LIQUID TANK CONTAINER AND METHOD FOR THIS.

Also Published As

Publication number Publication date
AU8920091A (en) 1992-06-25
FI93195C (en) 1995-03-10
FI905816A0 (en) 1990-11-26
FI905816A (en) 1992-05-27
FI93195B (en) 1994-11-30

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