GB1293019A - Improvements in or relating to the manufacture of tubes of fibre-reinforced plastics - Google Patents
Improvements in or relating to the manufacture of tubes of fibre-reinforced plasticsInfo
- Publication number
- GB1293019A GB1293019A GB740070A GB740070A GB1293019A GB 1293019 A GB1293019 A GB 1293019A GB 740070 A GB740070 A GB 740070A GB 740070 A GB740070 A GB 740070A GB 1293019 A GB1293019 A GB 1293019A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mandrel
- tubes
- wound
- tube
- fibre
- 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
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
- B29C53/583—Winding and joining, e.g. winding spirally helically for making tubular articles with particular features
- B29C53/585—Winding and joining, e.g. winding spirally helically for making tubular articles with particular features the cross-section varying along their axis, e.g. tapered, with ribs, or threads, with socket-ends
-
- 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
- B29D1/00—Producing articles with screw-threads
- B29D1/005—Producing articles with screw-threads fibre reinforced
Abstract
1293019 Winding tubes KUNSTSTOFFBURO PORTA GmbH & CO KG 16 Feb 1970 [20 Feb 1969] 7400/70 Heading F2P A process for producing fibre reinforced plastics tubes comprises delivering fibre blanks 21, e.g. glass or polyester fibre fleece, and/or webs of interlaced rovings, which may be drawn from a magazine reel 10 and sheared to size on a table 12, to a winding mandrel 22 in the dry state to be wound and impregnated with plastics and subjected to pressure and friction by roller 24 during winding. The width of the blanks corresponds to the required length of the tubes and the length of the blanks may be equal to the circumference of the tube if there is to be a single reinforcing layer or a multiple of the circumference if more layers are required. A set of feed rollers 19, 20 may be used to guide the blanks. As shown, an apparatus for producing the tubes comprises a roller 24 driven by the same mechanism 28 as the mandrel 22 and adapted to rotate at a peripheral speed different from that of mandrel 22, so that the wound tube is smoother at the surface. To this end, the drive may also be so programmed that during the last few revolutions of the winding mandrel, the roller 24 is stationary. The roller 24 partly dips in a tank 26 containing liquid plastics material, e.g. a casting resin, which is conveyed to the mandrel 22 for impregnation of the wound mat. The plastics material if thermosetting, is cured before the wound tube is disengaged from the mandrel. The mandrel itself is mounted for rotation on swivel supports 30 which have limiting stops 34. A method of producing tubes with internal threads is described wherein plastics impregnated fibre rovings are wound into a threadmoulding profile on a mandrel until the surface thereof is flush, and before this cures the required wall-thickness of the tube is built on the mandrel so prepared. The mandrel is finally screwed out, &c. to facilitate this it may initially be treated with a release agent. A method of producing tubes with external threads is illustrated (Figs. 3a, 3b, 4a and 4b, not shown) wherein a thread-moulding roller temporarily carrying spiral fibre rovings is used to transfer the rovings to a semi-cured tube to form helical threads on the tube. Tubes of the invention may be used in chemical plants; tapered cylindrical tubes may be wound which find use as telegraph masts.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691908420 DE1908420C3 (en) | 1969-02-20 | 1969-02-20 | Process and system for winding pipes made of fiber-reinforced plastic |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1293019A true GB1293019A (en) | 1972-10-18 |
Family
ID=5725778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB740070A Expired GB1293019A (en) | 1969-02-20 | 1970-02-16 | Improvements in or relating to the manufacture of tubes of fibre-reinforced plastics |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS5125455B1 (en) |
DE (1) | DE1908420C3 (en) |
GB (1) | GB1293019A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0373640A2 (en) * | 1988-12-16 | 1990-06-20 | The B.F. Goodrich Company | Fiber reinforced composite threaded member |
WO2021013457A1 (en) * | 2019-07-25 | 2021-01-28 | S-Fasteners Gmbh | Method for producing a tubular part with an internal thread, and tubular part with an internal thread |
US11041552B2 (en) | 2017-07-14 | 2021-06-22 | Crompton Technology Group Limited | Composite ball screw |
-
1969
- 1969-02-20 DE DE19691908420 patent/DE1908420C3/en not_active Expired
-
1970
- 1970-02-16 GB GB740070A patent/GB1293019A/en not_active Expired
- 1970-02-20 JP JP45014718A patent/JPS5125455B1/ja active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0373640A2 (en) * | 1988-12-16 | 1990-06-20 | The B.F. Goodrich Company | Fiber reinforced composite threaded member |
EP0373640A3 (en) * | 1988-12-16 | 1991-10-09 | The B.F. Goodrich Company | Fiber reinforced composite threaded member |
US11041552B2 (en) | 2017-07-14 | 2021-06-22 | Crompton Technology Group Limited | Composite ball screw |
EP3427921B1 (en) * | 2017-07-14 | 2021-11-17 | Crompton Technology Group Limited | Composite ball screw |
WO2021013457A1 (en) * | 2019-07-25 | 2021-01-28 | S-Fasteners Gmbh | Method for producing a tubular part with an internal thread, and tubular part with an internal thread |
Also Published As
Publication number | Publication date |
---|---|
DE1908420C3 (en) | 1978-08-24 |
JPS5125455B1 (en) | 1976-07-31 |
DE1908420B2 (en) | 1977-12-22 |
DE1908420A1 (en) | 1970-09-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |