CA2255860A1 - Composite material tubular equipment produced by winding of weft-unbalanced woven fabric on a compressible mandrel - Google Patents
Composite material tubular equipment produced by winding of weft-unbalanced woven fabric on a compressible mandrel Download PDFInfo
- Publication number
- CA2255860A1 CA2255860A1 CA002255860A CA2255860A CA2255860A1 CA 2255860 A1 CA2255860 A1 CA 2255860A1 CA 002255860 A CA002255860 A CA 002255860A CA 2255860 A CA2255860 A CA 2255860A CA 2255860 A1 CA2255860 A1 CA 2255860A1
- Authority
- CA
- Canada
- Prior art keywords
- tube according
- winding
- tube
- composite material
- mandrel
- 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.)
- Abandoned
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
- B29C53/56—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
-
- 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
- B29C53/581—Winding and joining, e.g. winding spirally helically using sheets or strips consisting principally of plastics material
- B29C53/582—Winding and joining, e.g. winding spirally helically using sheets or strips consisting principally of plastics material comprising reinforcements, e.g. wires, threads
-
- 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
-
- 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
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/22—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
-
- 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
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/0809—Fabrics
- B29K2105/0845—Woven fabrics
-
- 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
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Laminated Bodies (AREA)
- Woven Fabrics (AREA)
- Nonwoven Fabrics (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses composite material tubes, piles, masts subjected to axial compression or bending stresses, produced by an adapted winding of weftunbalanced woven fabric, such that the main portion of reinforcement fibres is placed parallel to the longitudinal axis of the structure. The tubes, piles and masts are produced by winding on a compressible mandrel to ensure that the tubes are not stressed or subjected to micro-cracking when the mandrel plug is pulled out.
Description
CA 022~860 1998-11-23 TUBULARELEMENTSINCOMPOSITEMATERIALSOBTAINEDBYWINDING
ANUNBALANCED-WEAVEFABRICONACOMPRESSIBLEMANDREL
Numerous structural elements, in particular piles, posts or masts, are made from steel and, as a consequence, suffer from disadvantages such as:
a) their significant weight and, in certain cases, the resultant problems in placing them;
b) their tendency to corrode due to the effects of air, water or the soil.
c) the cost of their maintenance.
In an attempt to overcome these disadvantages, such structural elements have been made from aluminium or composite materials. Regarding such structural elements in composite materials, the technique that is generally employed consists in winding filaments of rovings.
Structural elements such as piles, posts or masts should not only have good breaking strength characteristics but also be highly rigid when subject to movements which tend to bend them. To achieve this, it is necessarily for the composite structure to take full advantage, firstly, of the tensile breaking and compressional strength of the fibers and, secondly, of the flexural modulus of the reinforcing fibers.
Thus, the major portion of the latter should be placed along the axis of the pile, post or mast.
According to the invention, elongated structures such as piles, posts, masts, beams, are produced by winding, preferably helically, thermosetting-resin-impregnated glass fabric impregnated with a a heat-setting resin such as an epoxy, polyester, or vinyl ester resin.
According to the invention, these fabrics have an unbalanced weave, in other words have a higher percentage of filaments in the fill or woof than in the warp. Additionally, their weave makes angular deformability possible thereby ~ \14h()()\14(.06US DOC -13 nov~mbr~ 1998 -1/7 CA 022~860 1998-11-23 making it possible, according to the invention, to place the fill or woof filaments parallel to the X- X~ axis of the structure.
The originality of the design of these high bending-strength composite tubes of the invention will become clearfrom the description and corresponding technical justification.
According to the invention, a tube is produced by helically winding a glass fabric in which the ratio warp/woof is unbalanced, with c>t, where c is the percentage of the fiber placed in the warp and t is the percentage of fiber placed in the woof. The preferred values are between 10 and 25~ for c and between 90 and 75~ for t; this figure for modularity makes it possible, as a function of diameter/thickness ratio, to ensure good resistance against radial buckling.
According to the invention, the tube is built up from successive layers provided by forward and return helical winding. On the forward runs, helical winding is done at an angle of B1 = (90 ~ - a) with respect to the longitudinal axis and on the return run with an angle of B2 = (90~ + a) .
According to the invention, helical winding is preferably carried out while giving the fabric an oblique slope of angle a (see FIG 1) so that the fill or woof 1 is parallel to the longitudinal axis of the tube, the warp 2 having an angle a with respect to the circumferential plane 3; this arrangement improves flexural modulus.
According to the invention, each layer is wound preferably by partially overlapping (see 6) successive turns 4, 5 (see FIG 2). To avoid local excess thickness the width of offset 1 between two successive turns is such that L
~ = _ n R~\146(1(~\14(.(~6~1!i DO(: -13 novembre 1998 -2/7 CA 022~860 1998-11-23 where L is the width of the layer and n is an integer >
1.
Without departing from the invention, helically winding is performed either with individual widths abuting as indicated by reference 7 in FIG 3, or with alternating individual widths (see FIG 4). The individual widths 8 and 9 are placed during the first outward run. The individual widths 10 and 11 are placed during the first return run; the widths 12 and 13 during the second outward run. This latter type of winding improves resistance to inter-layer shear stress.
According to the invention, where winding is done with the turns abuting, the successive layers are preferably offset in order to decrease the effect of discontinuity brought about by the individual widths. For example, in the case of a helical winding with abuting individual widths of width L and a number of layers q, the position of each layer (outward + return run) is offset by a space of width K such that K = _ m where m is an integer > 1 and if possible with m r being an integer (see FIG 5).
The individual widths 14 ,15, 16 are the widths for the first outward run and the individual widths 17,18 and 19 are the widths for the second outward run.
Even though the preferred fabric is a glass fabric it is possible, without a departing from the scope of the invention, to employ fabrics in carbon, aramide, or high R:\146()1~\146()6~J8 DOC - 13 novembr~ 1998 - 3/7 CA 022~860 1998-11-23 strength polyethylene. It is also possible to employ hybrid fabrics, for example glass plus carbon.
Without departing from the invention, the fabrics can be pre-impregnated with heat-setting resin.
Without departing from the invention, the fabrics employed can be pre-impregnated with thermoplastic resin.
Without departing from the invention, the fabrics can be wound at the same time as a thermoplastic film and impregnated by melting plus compression.
Where it is desired to produce structural elements such as piles, posts or masts which are of considerable thickness, including cylindrical portions and having an unbalanced fiber reinforcement along the X-X~ axis of the structural element, the presence of significant forces tending to clamp the composite structure against the mandrel, after polymerization, has been observed; this phenomenon can make it difficult to remove the element from the mandrel and can create micro-cracking in the structure.
In order to avoid these major disadvantages, according to the invention, a smooth layer of a compressible material is placed on the mandrel after which the glass fabric is wound onto this compressible mandrel.
According to the invention, the characteristics of compressability of the material will be such that it only shows a slight deformability under the limited force of winding the fabric and it will absorb the contraction of the composite structure and only transmit a slight clamping force to the mandrel, thereby facilitating removal therefrom. The material chosen should have a low coefficient of friction.
According to the invention, the material is preferably a closed-cell polyethylene foam with a smooth polished skin.
Without departing from the invention, another material having the above characteristics can be used, for example a flexible polyurethane foam.
R~\14hûO\14(~()(.USDOC-13novembrel998-4/7 CA 022~860 1998-11-23 According to the invention, in order to facilitate removal from the mandrel and preserve the internal surface state of the tube, the foam should be coated with a terpane film.
In the presence of flexural forces operating in a priviledged radial direction, oblong-shaped tubes are provided (see FIG 6). This type of tube can for example be employed in the construction of breakwaters.
Without departing from the invention, the tube can have a sandwich structure (see FIG 7) constituted by two concentric tubes 20, 21 obtained by means of the invention and separated by a wall 22 in a material which is rigid in compression such as a rigid foam, a honeycomb structure, balsa, and so on.
This makes it possible to make the tubes lighter and improves rigidity.
Without departing from the invention, in order to improve rigidity in the presence of bending forces acting along a preferred axis, the inner tube can be cylindrical and the outer tube oblong.
R \ 1460()\1 4606US D0~ - 13 nov~mbre 1998 - S/7
ANUNBALANCED-WEAVEFABRICONACOMPRESSIBLEMANDREL
Numerous structural elements, in particular piles, posts or masts, are made from steel and, as a consequence, suffer from disadvantages such as:
a) their significant weight and, in certain cases, the resultant problems in placing them;
b) their tendency to corrode due to the effects of air, water or the soil.
c) the cost of their maintenance.
In an attempt to overcome these disadvantages, such structural elements have been made from aluminium or composite materials. Regarding such structural elements in composite materials, the technique that is generally employed consists in winding filaments of rovings.
Structural elements such as piles, posts or masts should not only have good breaking strength characteristics but also be highly rigid when subject to movements which tend to bend them. To achieve this, it is necessarily for the composite structure to take full advantage, firstly, of the tensile breaking and compressional strength of the fibers and, secondly, of the flexural modulus of the reinforcing fibers.
Thus, the major portion of the latter should be placed along the axis of the pile, post or mast.
According to the invention, elongated structures such as piles, posts, masts, beams, are produced by winding, preferably helically, thermosetting-resin-impregnated glass fabric impregnated with a a heat-setting resin such as an epoxy, polyester, or vinyl ester resin.
According to the invention, these fabrics have an unbalanced weave, in other words have a higher percentage of filaments in the fill or woof than in the warp. Additionally, their weave makes angular deformability possible thereby ~ \14h()()\14(.06US DOC -13 nov~mbr~ 1998 -1/7 CA 022~860 1998-11-23 making it possible, according to the invention, to place the fill or woof filaments parallel to the X- X~ axis of the structure.
The originality of the design of these high bending-strength composite tubes of the invention will become clearfrom the description and corresponding technical justification.
According to the invention, a tube is produced by helically winding a glass fabric in which the ratio warp/woof is unbalanced, with c>t, where c is the percentage of the fiber placed in the warp and t is the percentage of fiber placed in the woof. The preferred values are between 10 and 25~ for c and between 90 and 75~ for t; this figure for modularity makes it possible, as a function of diameter/thickness ratio, to ensure good resistance against radial buckling.
According to the invention, the tube is built up from successive layers provided by forward and return helical winding. On the forward runs, helical winding is done at an angle of B1 = (90 ~ - a) with respect to the longitudinal axis and on the return run with an angle of B2 = (90~ + a) .
According to the invention, helical winding is preferably carried out while giving the fabric an oblique slope of angle a (see FIG 1) so that the fill or woof 1 is parallel to the longitudinal axis of the tube, the warp 2 having an angle a with respect to the circumferential plane 3; this arrangement improves flexural modulus.
According to the invention, each layer is wound preferably by partially overlapping (see 6) successive turns 4, 5 (see FIG 2). To avoid local excess thickness the width of offset 1 between two successive turns is such that L
~ = _ n R~\146(1(~\14(.(~6~1!i DO(: -13 novembre 1998 -2/7 CA 022~860 1998-11-23 where L is the width of the layer and n is an integer >
1.
Without departing from the invention, helically winding is performed either with individual widths abuting as indicated by reference 7 in FIG 3, or with alternating individual widths (see FIG 4). The individual widths 8 and 9 are placed during the first outward run. The individual widths 10 and 11 are placed during the first return run; the widths 12 and 13 during the second outward run. This latter type of winding improves resistance to inter-layer shear stress.
According to the invention, where winding is done with the turns abuting, the successive layers are preferably offset in order to decrease the effect of discontinuity brought about by the individual widths. For example, in the case of a helical winding with abuting individual widths of width L and a number of layers q, the position of each layer (outward + return run) is offset by a space of width K such that K = _ m where m is an integer > 1 and if possible with m r being an integer (see FIG 5).
The individual widths 14 ,15, 16 are the widths for the first outward run and the individual widths 17,18 and 19 are the widths for the second outward run.
Even though the preferred fabric is a glass fabric it is possible, without a departing from the scope of the invention, to employ fabrics in carbon, aramide, or high R:\146()1~\146()6~J8 DOC - 13 novembr~ 1998 - 3/7 CA 022~860 1998-11-23 strength polyethylene. It is also possible to employ hybrid fabrics, for example glass plus carbon.
Without departing from the invention, the fabrics can be pre-impregnated with heat-setting resin.
Without departing from the invention, the fabrics employed can be pre-impregnated with thermoplastic resin.
Without departing from the invention, the fabrics can be wound at the same time as a thermoplastic film and impregnated by melting plus compression.
Where it is desired to produce structural elements such as piles, posts or masts which are of considerable thickness, including cylindrical portions and having an unbalanced fiber reinforcement along the X-X~ axis of the structural element, the presence of significant forces tending to clamp the composite structure against the mandrel, after polymerization, has been observed; this phenomenon can make it difficult to remove the element from the mandrel and can create micro-cracking in the structure.
In order to avoid these major disadvantages, according to the invention, a smooth layer of a compressible material is placed on the mandrel after which the glass fabric is wound onto this compressible mandrel.
According to the invention, the characteristics of compressability of the material will be such that it only shows a slight deformability under the limited force of winding the fabric and it will absorb the contraction of the composite structure and only transmit a slight clamping force to the mandrel, thereby facilitating removal therefrom. The material chosen should have a low coefficient of friction.
According to the invention, the material is preferably a closed-cell polyethylene foam with a smooth polished skin.
Without departing from the invention, another material having the above characteristics can be used, for example a flexible polyurethane foam.
R~\14hûO\14(~()(.USDOC-13novembrel998-4/7 CA 022~860 1998-11-23 According to the invention, in order to facilitate removal from the mandrel and preserve the internal surface state of the tube, the foam should be coated with a terpane film.
In the presence of flexural forces operating in a priviledged radial direction, oblong-shaped tubes are provided (see FIG 6). This type of tube can for example be employed in the construction of breakwaters.
Without departing from the invention, the tube can have a sandwich structure (see FIG 7) constituted by two concentric tubes 20, 21 obtained by means of the invention and separated by a wall 22 in a material which is rigid in compression such as a rigid foam, a honeycomb structure, balsa, and so on.
This makes it possible to make the tubes lighter and improves rigidity.
Without departing from the invention, in order to improve rigidity in the presence of bending forces acting along a preferred axis, the inner tube can be cylindrical and the outer tube oblong.
R \ 1460()\1 4606US D0~ - 13 nov~mbre 1998 - S/7
Claims (10)
1. A tube in a composite material characterised in that it is obtained by helically winding fabric in which the fill or woof is unbalanced with respect to the warp
2. The tube according to claim 1, characterised in that it is provided by inclining the fabric by an angle equal to the angle of helical winding.
3. The tube according to one or several of claims 1 and 2, characterised in that the helical winding of the tube is performed with partial overlapping of successive turns.
4. The tube according to one or several of claims 1 and 2, characterised in that individual widths are butt-jointed or alternate and successive layers thereof are offset in order to counterbalance discontinuities due to the individual widths.
5. The tube according to any one of the preceding claims, characterised in that the fabric employed is composed of fibers of a single type or of hybrid fibers.
6. The tube according to any one of the preceding claims, characterised in that its profile is cylindrical or oblong.
7. The tube according to any one of the preceding claims, characterised in that it has a single-walled structure.
8. The tube according to any one of the preceding claims, characterised in that it has a sandwich structure that includes a material having high compression strength between two tubes.
9. The tube according to any one of the above claims, characterised in that its winding mandrel is covered with a layer of compressible material.
10. The tube according to claim 9, characterised in that the compressible material is a closed cell polyethylene foam.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9606537A FR2748964B1 (en) | 1996-05-23 | 1996-05-23 | TUBULAR EQUIPMENT IN COMPOSITE MATERIALS MADE BY WINDING UNBALANCED TISSUE ON A COMPRESSIBLE CHUCK |
| FR96/06537 | 1996-05-23 | ||
| PCT/FR1997/000909 WO1997044181A1 (en) | 1996-05-23 | 1997-05-23 | Composite material tubular equipment produced by winding of weft-unbalanced woven fabric on a compressible mandrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2255860A1 true CA2255860A1 (en) | 1997-11-27 |
Family
ID=9492471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002255860A Abandoned CA2255860A1 (en) | 1996-05-23 | 1997-05-23 | Composite material tubular equipment produced by winding of weft-unbalanced woven fabric on a compressible mandrel |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP0907494A1 (en) |
| JP (1) | JP2000510779A (en) |
| KR (1) | KR20000015809A (en) |
| CN (1) | CN1219903A (en) |
| AU (1) | AU3037497A (en) |
| BR (1) | BR9709357A (en) |
| CA (1) | CA2255860A1 (en) |
| FR (1) | FR2748964B1 (en) |
| NO (1) | NO985411L (en) |
| PL (1) | PL330186A1 (en) |
| TR (1) | TR199802381T2 (en) |
| WO (1) | WO1997044181A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101103448B1 (en) * | 2009-07-01 | 2012-01-09 | 경희대학교 산학협력단 | Lane departure warning apparatus using laser |
| JP2011098523A (en) * | 2009-11-06 | 2011-05-19 | Ihi Corp | Method of manufacturing case and the case |
| RU2445523C1 (en) * | 2010-09-28 | 2012-03-20 | Государственное образовательное учреждение высшего профессионального образования "Тихоокеанский государственный университет" | Method of producing plain bearing |
| RU2445521C1 (en) * | 2010-10-05 | 2012-03-20 | Государственное образовательное учреждение высшего профессионального образования "Тихоокеанский государственный университет" | Method of producing plain bearing |
| RU2445522C1 (en) * | 2010-11-26 | 2012-03-20 | Государственное образовательное учреждение высшего профессионального образования "Тихоокеанский государственный университет" | Method of producing plain bearing |
| RU2485367C1 (en) * | 2012-03-26 | 2013-06-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тихоокеанский государственный университет" | Manufacturing method of sliding bearing |
| EP3043992B1 (en) * | 2013-09-11 | 2017-11-29 | Tata Steel UK Ltd. | Tubular containment part for a flywheel containment assembly and method for manufacturing same |
| RU2540894C1 (en) * | 2013-11-28 | 2015-02-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тихоокеанский государственный университет" | Sliding bearing manufacturing method |
| DE102017009839A1 (en) * | 2017-07-12 | 2019-01-17 | Oke Kunststofftechnik Gmbh & Co. Kg | Method for producing a composite profile and composite profile |
| CN110815873A (en) * | 2019-11-15 | 2020-02-21 | 核工业理化工程研究院 | Method and device for treating surface of composite material cylinder |
| CN113232328B (en) * | 2021-03-31 | 2022-05-06 | 成都飞机工业（集团）有限责任公司 | Manufacturing method of composite material S-shaped air inlet duct cylinder based on 2.5D weaving |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3141052A (en) * | 1960-09-19 | 1964-07-14 | Jr Peter Labash | Method of forming seamless hollow plastic shapes |
| DE1704632A1 (en) * | 1967-02-24 | 1971-05-19 | Bayer Ag | Winding mandrel and process for the production of pipes made of glass fiber reinforced thermosetting plastics |
| DE2423223C3 (en) * | 1974-05-14 | 1978-11-02 | Troisdorfer Bau- Und Kunststoff Gmbh, 5210 Troisdorf | Heatable winding drum made of steel for the manufacture of pipes and containers |
| US3969557A (en) * | 1975-02-27 | 1976-07-13 | Amf Incorporated | Fiberglass vaulting pole |
| US3989562A (en) * | 1975-03-10 | 1976-11-02 | Pikaz, Inzenyrsky Podnik | Container body |
| US4273601A (en) * | 1977-10-31 | 1981-06-16 | Structural Composites Industries, Inc. | Method for the production of elongated resin impregnated filament composite structures |
| DE3929473A1 (en) * | 1989-09-05 | 1991-03-07 | Ch Polt I | Angular winding of resin impregnated glass fabric - in which applicator trolley with roll of fabric moves sideways relative to rotating mandrel and has resin bath and fabric guides |
-
1996
- 1996-05-23 FR FR9606537A patent/FR2748964B1/en not_active Expired - Fee Related
-
1997
- 1997-05-23 CN CN97194881A patent/CN1219903A/en active Pending
- 1997-05-23 JP JP09541733A patent/JP2000510779A/en active Pending
- 1997-05-23 AU AU30374/97A patent/AU3037497A/en not_active Abandoned
- 1997-05-23 PL PL97330186A patent/PL330186A1/en unknown
- 1997-05-23 KR KR1019980709358A patent/KR20000015809A/en not_active Application Discontinuation
- 1997-05-23 EP EP97925128A patent/EP0907494A1/en not_active Withdrawn
- 1997-05-23 WO PCT/FR1997/000909 patent/WO1997044181A1/en not_active Application Discontinuation
- 1997-05-23 TR TR1998/02381T patent/TR199802381T2/en unknown
- 1997-05-23 BR BR9709357A patent/BR9709357A/en not_active Application Discontinuation
- 1997-05-23 CA CA002255860A patent/CA2255860A1/en not_active Abandoned
-
1998
- 1998-11-20 NO NO985411A patent/NO985411L/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2748964A1 (en) | 1997-11-28 |
| AU3037497A (en) | 1997-12-09 |
| KR20000015809A (en) | 2000-03-15 |
| TR199802381T2 (en) | 1999-06-21 |
| FR2748964B1 (en) | 1998-08-07 |
| WO1997044181A1 (en) | 1997-11-27 |
| PL330186A1 (en) | 1999-04-26 |
| JP2000510779A (en) | 2000-08-22 |
| NO985411D0 (en) | 1998-11-20 |
| BR9709357A (en) | 1999-08-10 |
| NO985411L (en) | 1998-11-23 |
| EP0907494A1 (en) | 1999-04-14 |
| CN1219903A (en) | 1999-06-16 |
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