IT1042206B - Filament wound plastics article of non-circular cross section - by winding blank of circular cross section and deforming it during moulding - Google Patents
Filament wound plastics article of non-circular cross section - by winding blank of circular cross section and deforming it during mouldingInfo
- Publication number
- IT1042206B IT1042206B IT2677975A IT2677975A IT1042206B IT 1042206 B IT1042206 B IT 1042206B IT 2677975 A IT2677975 A IT 2677975A IT 2677975 A IT2677975 A IT 2677975A IT 1042206 B IT1042206 B IT 1042206B
- Authority
- IT
- Italy
- Prior art keywords
- mandrel
- section
- circular cross
- mould
- deforming
- Prior art date
Links
Abstract
A hollow filament woulnd resin article of non-circular cross-section is made by forming an inflatable mandrel comprising a sheath held between a pair of circular end plates, inflating the mandrel to a cylindrical configuration, helically winding resin impregnated filaments at angles of 0-90 degrees onto the inflated mandrel, removing the end plates to deflate the mandrel, locating the deflated mandrel in a mould of the desired configuration, and finally reinflating the mandrel to press the filament/resin coating into contact with the mould and heating the mould to effect a cure. The sheat may or may not be retained in the finished article High strength articles of non-circular construction, such as helicopter blades and aerofoils, can be relatively easily madE.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2677975A IT1042206B (en) | 1975-09-01 | 1975-09-01 | Filament wound plastics article of non-circular cross section - by winding blank of circular cross section and deforming it during moulding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2677975A IT1042206B (en) | 1975-09-01 | 1975-09-01 | Filament wound plastics article of non-circular cross section - by winding blank of circular cross section and deforming it during moulding |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1042206B true IT1042206B (en) | 1980-01-30 |
Family
ID=11220229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2677975A IT1042206B (en) | 1975-09-01 | 1975-09-01 | Filament wound plastics article of non-circular cross section - by winding blank of circular cross section and deforming it during moulding |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1042206B (en) |
-
1975
- 1975-09-01 IT IT2677975A patent/IT1042206B/en active
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