Method for forming fiber preforms
Abstract
Abstract A method of forming a fiber preform for use in the manufacture of fiber-reinforced molded resin articles is disclosed. In accordance with the method, a perforated screen form having an interior surface which defines the shape of the preform to be formed is rotated about its longitudinal axis within a surrounding vacuum chamber. Chopped fibers are directly deposited in a localized manner on to the interior surface of the screen form from a moving fiber dispensing point within the screen form. The fiber dispensing point is moved along a path which closely follows the rotating, longitudinal contour of the interior surface of the screen form so as to progressively, uniformly cover the entire interior surface with chopped fibers which are held in place by the air flow through the screen form and into the vacuum chamber. The deposited chopped fibers are sprayed with a heat curable resin binder which is subsequently cured.
Inventors
- 👤 A Wiltshire
Bibliographic Details
Claims Analysis
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| 3.5 Years (Year 4) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
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