Resin flow control in VARTM process

摘要

A method for controlling a resin flow (13) in a closed mould cavity (15) during a vacuum assisted resin transfer moulding process is disclosed. The used closed mould cavity (15) comprises at least one resin inlet (2) and a number of resin outlets (3). Each resin outlet (3) is operatively connected to an inlet (6) of a container (5). Each container (5) comprises an outlet (7) which is operatively connected to a vacuum pump (8). The method comprises the steps of evacuating the closed mould cavity (15) through the resin outlets (3) by means of the vacuum pump (8), injecting liquid resin (12) into the closed mould cavity (15), measuring the resin fill level in each container (5) during the injection of liquid resin (12) into the closed mould cavity (15) and adjusting the applied pressure at each container (5) outlet depending on the measured resin fill level in the particular container (5).