Effect of injection chamber length and pull speed of tapered resin injection pultrusion

摘要

The objective of the present study is to improve the pultrusion process by improving the reinforcement wetout, and thus, the quality of the pultruded part in the resin injection pultrusion process. The emphasis here is on one of the processing parameters (pull speed/line speed) with a slot injection tapered chamber by varying the length of the injection chamber. Investigated is the impact of tapering of the walls of the injection chamber on the minimum injection pressure necessary to achieve complete wetout via varying the length of the tapered injection chamber and also the pull speed. This work presents the injection chamber exit pressure, since this is important for chamber design with respect to personnel safety and die/chamber damage.