CA2485531C - A pultruded part reinforced by longitudinal and transverse fibers and a method of manufacturing thereof - Google Patents
A pultruded part reinforced by longitudinal and transverse fibers and a method of manufacturing thereof Download PDFInfo
- Publication number
- CA2485531C CA2485531C CA2485531A CA2485531A CA2485531C CA 2485531 C CA2485531 C CA 2485531C CA 2485531 A CA2485531 A CA 2485531A CA 2485531 A CA2485531 A CA 2485531A CA 2485531 C CA2485531 C CA 2485531C
- Authority
- CA
- Canada
- Prior art keywords
- reinforcing fibers
- fibers
- wall
- single pre
- pultruded part
- 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.)
- Expired - Fee Related
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
- 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
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/525—Component parts, details or accessories; Auxiliary operations
-
- 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
- B29C70/20—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres
- B29C70/202—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres arranged in parallel planes or structures of fibres crossing at substantial angles, e.g. cross-moulding compound [XMC]
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
A method for forming a pultruded part includes collating reinforcing fibers by providing a first layer of reinforcing rovings extending in the longitudinal pultrusion direction, applying onto the first layer an intermediate layer of reinforcing fibers at least some of which include at least portions thereof which extend in the transverse direction and covering the intermediate layer with a second layer of rovings extending in the longitudinal direction. To the collated fibers is applied a resin so as to permeate through the layers and the materials are passed through a die to set the resin. The first and second layers are arranged to form first and second opposed surfaces of the part with the intermediate layer therebetween. The resin is a two part urethane resin which has sufficient strength to prevent the fibers from the first and second layers at the first and second surfaces respectively from breaking through the surface on bending of the wall thus allowing the use of the rovings at the surfaces with the transverse fibers therebetween so that the transverse fibers can be formed from loose or chopped fiber material from rovings rather than more expensive mat.
Claims (19)
1. A pultruded part comprising:
a wall having a first surface and a second surface spaced by a thickness of the wall, the wall extending longitudinally in a pultrusion direction and having a transverse width transverse to the longitudinal"pultrusion direction;
reinforcing fibers within the wall;
a resin permeated between the reinforcing fibers and filling the thickness between the first and second surfaces so as to define the first and second surfaces;
the reinforcing fibers consisting solely of first reinforcing fibers and second reinforcing fibers so that the whole of the thickness between the surfaces is reinforced solely by the first and second reinforcing fibers;
the first reinforcing fibers being defined by solely by fibers extending only in the longitudinal pultrusion direction;
the second reinforcing fibers being formed by a single pre-formed mat of fibers where at least some of the fibers of the mat include at least portions thereof which extend in the transverse direction;
the single pre-formed mat of the second reinforcing fibers being arranged such that all of the fibers in the wall other than the single pre-formed mat of second reinforcing fibers are first fibers extending only in the longitudinal pultrusion direction;
the single pre-formed mat of the second reinforcing fibers having a total weight less than 0.5 ounces per square foot;
wherein the single layer of the second reinforcing fibers is formed substantially wholly of glass fibers.
a wall having a first surface and a second surface spaced by a thickness of the wall, the wall extending longitudinally in a pultrusion direction and having a transverse width transverse to the longitudinal"pultrusion direction;
reinforcing fibers within the wall;
a resin permeated between the reinforcing fibers and filling the thickness between the first and second surfaces so as to define the first and second surfaces;
the reinforcing fibers consisting solely of first reinforcing fibers and second reinforcing fibers so that the whole of the thickness between the surfaces is reinforced solely by the first and second reinforcing fibers;
the first reinforcing fibers being defined by solely by fibers extending only in the longitudinal pultrusion direction;
the second reinforcing fibers being formed by a single pre-formed mat of fibers where at least some of the fibers of the mat include at least portions thereof which extend in the transverse direction;
the single pre-formed mat of the second reinforcing fibers being arranged such that all of the fibers in the wall other than the single pre-formed mat of second reinforcing fibers are first fibers extending only in the longitudinal pultrusion direction;
the single pre-formed mat of the second reinforcing fibers having a total weight less than 0.5 ounces per square foot;
wherein the single layer of the second reinforcing fibers is formed substantially wholly of glass fibers.
2. A pultruded part comprising:
a wall having a first surface and a second surface spaced by a thickness of the wall, the wall extending longitudinally in a pultrusion direction and having a transverse width transverse to the longitudinal pultrusion direction;
reinforcing fibers within the wall;
a resin permeated between the reinforcing fibers and filling the thickness between the first and second surfaces so as to define the first and second surfaces;
the reinforcing fibers consisting solely of first reinforcing fibers and second reinforcing fibers so that the whole of the thickness between the surfaces is reinforced solely by the first and second reinforcing fibers;
the first reinforcing fibers being defined by solely by fibers extending only in the longitudinal pultrusion direction;
the second reinforcing fibers being formed by a single pre-formed mat of fibers where at least some of the fibers of the mat include at least portions thereof which extend in the transverse direction;
the single pre-formed mat of the second reinforcing fibers being arranged such that all of the fibers in the wall other than the single pre-formed mat of second reinforcing fibers are first fibers extending only in the longitudinal pultrusion direction;
the single pre-formed mat of the second reinforcing fibers having a total weight less than 0.5 ounces per square foot;
wherein the single layer of the second reinforcing fibers is formed substantially wholly of polyester fibers.
a wall having a first surface and a second surface spaced by a thickness of the wall, the wall extending longitudinally in a pultrusion direction and having a transverse width transverse to the longitudinal pultrusion direction;
reinforcing fibers within the wall;
a resin permeated between the reinforcing fibers and filling the thickness between the first and second surfaces so as to define the first and second surfaces;
the reinforcing fibers consisting solely of first reinforcing fibers and second reinforcing fibers so that the whole of the thickness between the surfaces is reinforced solely by the first and second reinforcing fibers;
the first reinforcing fibers being defined by solely by fibers extending only in the longitudinal pultrusion direction;
the second reinforcing fibers being formed by a single pre-formed mat of fibers where at least some of the fibers of the mat include at least portions thereof which extend in the transverse direction;
the single pre-formed mat of the second reinforcing fibers being arranged such that all of the fibers in the wall other than the single pre-formed mat of second reinforcing fibers are first fibers extending only in the longitudinal pultrusion direction;
the single pre-formed mat of the second reinforcing fibers having a total weight less than 0.5 ounces per square foot;
wherein the single layer of the second reinforcing fibers is formed substantially wholly of polyester fibers.
3. A pultruded part comprising:
a wall having a first surface and a second surface spaced by a thickness of the wall, the wall extending longitudinally in a pultrusion direction and having a transverse width transverse to the longitudinal pultrusion direction;
reinforcing fibers within the wall;
a resin permeated between the reinforcing fibers and filling the thickness between the first and second surfaces so as to define the first and second surfaces;
the reinforcing fibers consisting solely of first reinforcing fibers and second reinforcing fibers so that the whole of the thickness between the surfaces is reinforced solely by the first and second reinforcing fibers;
the first reinforcing fibers being defined by solely by fibers extending only in the longitudinal pultrusion direction;
the second reinforcing fibers being formed by a single pre-formed mat of fibers where at least some of the fibers of the mat include at least portions thereof which extend in the transverse direction;
the single pre-formed mat of the second reinforcing fibers being arranged such that all of the fibers in the wall other than the single pre-formed mat of second reinforcing fibers are first fibers extending only in the longitudinal pultrusion direction;
the single pre-formed mat of the second reinforcing fibers having a total weight less than 0.5 ounces per square foot;
wherein the single pre-formed mat of the second reinforcing fibers has a total weight in the range 0.25 ounces per square foot to 0.5 ounces per square foot.
a wall having a first surface and a second surface spaced by a thickness of the wall, the wall extending longitudinally in a pultrusion direction and having a transverse width transverse to the longitudinal pultrusion direction;
reinforcing fibers within the wall;
a resin permeated between the reinforcing fibers and filling the thickness between the first and second surfaces so as to define the first and second surfaces;
the reinforcing fibers consisting solely of first reinforcing fibers and second reinforcing fibers so that the whole of the thickness between the surfaces is reinforced solely by the first and second reinforcing fibers;
the first reinforcing fibers being defined by solely by fibers extending only in the longitudinal pultrusion direction;
the second reinforcing fibers being formed by a single pre-formed mat of fibers where at least some of the fibers of the mat include at least portions thereof which extend in the transverse direction;
the single pre-formed mat of the second reinforcing fibers being arranged such that all of the fibers in the wall other than the single pre-formed mat of second reinforcing fibers are first fibers extending only in the longitudinal pultrusion direction;
the single pre-formed mat of the second reinforcing fibers having a total weight less than 0.5 ounces per square foot;
wherein the single pre-formed mat of the second reinforcing fibers has a total weight in the range 0.25 ounces per square foot to 0.5 ounces per square foot.
4. The pultruded part according to any one of Claims 1 to 3 wherein the single layer of the second reinforcing fibers comprises an entangled layer of staple fibers.
5. The pultruded part according to any one of Claims 1 to 4 wherein the resin is a cross-linked resin.
6. The pultruded part according to any one of Claims 1 to 5 wherein the resin is a thermoset cross-linked polyurethane.
7. The pultruded part according to any one of Claims 1 to 6 wherein the wall includes a leg portion thereof connected to a main body portion of the wall only at one end of the leg so as to define a second free end of the leg and wherein reinforcing fibers in the leg consist solely of fibers extending only in the longitudinal pultrusion direction.
8. The pultruded part according to Claim 7 wherein the leg portion has a wall that is thicker than that of the main body portion.
9. The pultruded part according to any one of Claims 1 to 8 wherein the single pre-formed mat of the second reinforcing fibers is located at a position spaced from the first and second surfaces such that all of the fibers in the wall from the single pre-formed mat of second reinforcing fibers to the first surface and from the single pre-formed mat of second reinforcing fibers to the second surface are first fibers extending only in the longitudinal pultrusion direction
10. A pultruded part comprising:
a wall having a first surface and a second surface spaced by a thickness of the wall, the wall extending longitudinally in a pultrusion direction and having a transverse width transverse to the longitudinal pultrusion direction;
the wall defining a peripheral wall fully surrounding a hollow interior such that the first surface faces outwardly and the second surface faces inwardly;
reinforcing fibers within the wall;
a resin permeated between the reinforcing fibers and filling the thickness between the first and second surfaces so as to define the first and second surfaces;
the reinforcing fibers consisting solely of first reinforcing fibers and second reinforcing fibers so that the whole of the thickness between the surfaces is reinforced solely by the first and second reinforcing fibers;
the first reinforcing fibers being defined by solely by fibers extending only in the longitudinal pultrusion direction;
the second reinforcing fibers being formed by a single pre-formed mat of fibers where at least some of the fibers of the mat include at least portions thereof which extend in the transverse direction;
the single pre-formed mat of the second reinforcing fibers being located at the second surface such that all of the fibers in the wall from the single pre-formed mat of second reinforcing fibers at the second surface to the first surface are first fibers extending only in the longitudinal pultrusion direction;
the single pre-formed mat of the second reinforcing fibers having a total weight less than 0.5 ounces per square foot.
a wall having a first surface and a second surface spaced by a thickness of the wall, the wall extending longitudinally in a pultrusion direction and having a transverse width transverse to the longitudinal pultrusion direction;
the wall defining a peripheral wall fully surrounding a hollow interior such that the first surface faces outwardly and the second surface faces inwardly;
reinforcing fibers within the wall;
a resin permeated between the reinforcing fibers and filling the thickness between the first and second surfaces so as to define the first and second surfaces;
the reinforcing fibers consisting solely of first reinforcing fibers and second reinforcing fibers so that the whole of the thickness between the surfaces is reinforced solely by the first and second reinforcing fibers;
the first reinforcing fibers being defined by solely by fibers extending only in the longitudinal pultrusion direction;
the second reinforcing fibers being formed by a single pre-formed mat of fibers where at least some of the fibers of the mat include at least portions thereof which extend in the transverse direction;
the single pre-formed mat of the second reinforcing fibers being located at the second surface such that all of the fibers in the wall from the single pre-formed mat of second reinforcing fibers at the second surface to the first surface are first fibers extending only in the longitudinal pultrusion direction;
the single pre-formed mat of the second reinforcing fibers having a total weight less than 0.5 ounces per square foot.
11. The pultruded part according to Claim 10 wherein the single layer of the second reinforcing fibers is a scrim or mesh.
12. The pultruded part according to Claim 10 or 11 wherein the single layer of the second reinforcing fibers is formed substantially wholly of glass fibers.
13. The pultruded part according to Claim 10 or 11 wherein the single layer of the second reinforcing fibers is formed substantially wholly of polyester fibers.
14. The pultruded part according to any one of Claims 10 to 13 wherein the single layer of the second reinforcing fibers comprises an entangled layer of staple fibers.
15. The pultruded part according to any one of Claims 10 to 14 wherein the single pre-formed mat of the second reinforcing fibers has a total weight in the range 0.25 ounces per square foot to 0.5 ounces per square foot.
16. The pultruded part according to any one of Claims 10 to 15 wherein the resin is a cross-linked resin.
17. The pultruded part according to any one of Claims 10 to 16 wherein the resin is a thermoset cross-linked polyurethane.
18. The pultruded part according to any one of Claims 10 to 17 wherein the wall includes a leg portion thereof connected to a main body portion of the wall only at one end of the leg so as to define a second free end of the leg and wherein reinforcing fibers in the leg consist solely of fibers extending only in the longitudinal pultrusion direction.
19 The pultruded part according to Claim 18 wherein the leg portion has a wall that is thicker than that of the main body portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2485531A CA2485531C (en) | 2002-06-12 | 2002-06-12 | A pultruded part reinforced by longitudinal and transverse fibers and a method of manufacturing thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2485531A CA2485531C (en) | 2002-06-12 | 2002-06-12 | A pultruded part reinforced by longitudinal and transverse fibers and a method of manufacturing thereof |
| CA002390468A CA2390468C (en) | 2001-06-14 | 2002-06-12 | A pultruded part reinforced by longitudinal and transverse fibers and a method of manufacturing thereof |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002390468A Division CA2390468C (en) | 2001-06-14 | 2002-06-12 | A pultruded part reinforced by longitudinal and transverse fibers and a method of manufacturing thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2485531A1 CA2485531A1 (en) | 2002-12-14 |
| CA2485531C true CA2485531C (en) | 2010-02-23 |
Family
ID=34069882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2485531A Expired - Fee Related CA2485531C (en) | 2002-06-12 | 2002-06-12 | A pultruded part reinforced by longitudinal and transverse fibers and a method of manufacturing thereof |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2485531C (en) |
-
2002
- 2002-06-12 CA CA2485531A patent/CA2485531C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2485531A1 (en) | 2002-12-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20130612 |