Process for producing a reinforced plastic article

摘要

Plastics articles with continuous reinforcement strands are normally produced by pultrusion. Pultrusion methods are known for producing straight or curved plastics profiles. It has not hitherto been possible for reinforced plastics articles of more complex form to be produced by pultrusion methods. The invention provides a pultrusion method in which a part of a curved plastics article serves, together with a mold (15), for the pultrusion of a reinforced plastics article. In this way, it is possible for complex plastics articles, for example a plastics pipe (10), to be produced by pultrusion.

主权项

1. A method for producing a reinforced plastics article, wherein a continuous reinforcement composed of strands (40) and/or fabric is guided through a mold (15) and, in the mold (15), is embedded in plastic to form the plastics article, and the mold (15) is periodically moved relative to the plastics article, wherein a part of the plastics article contributes, together with the mold (15), to the formation of the plastics article, wherein a pipe-shaped plastics article (10) is formed from multiple windings (11) lined up in coiled or spiral fashion, and wherein an already formed preceding winding (11) serves, together with the mold (15), for forming a subsequent winding.