The invention discloses an L-RTM (Light-Resin Transfer Moulding) manufacture technology for a
glass fiber reinforced plastics
wind power engine room cover, comprising the following steps of:
processing a die; laying a prefabticated member; assembling dies and sealing; vacuumizing a die cavity; injecting resin; demoulding; and trimming; in the step of assembling dies and sealing, arranging an annular sealing cavity which is used for assembling dies and sealing the die cavity; assembling dies by a negative-
pressure system to judge whether the die cavity is sealed according to the pressure situation of the annular sealing cavity and the die cavity; and in the step of injecting resin, ensuring that the
discharge hole of a resin container is higher than the
injection port of the die. The L-RTM manufacture technology for a
glass fiber reinforced plastics
wind power engine room cover is characterized in that die control, trouble shooting and resin filling technology are perfected on the basis of the common L-RTM technical theory; the
automation degree is high, the die trouble shooting is easy to implement, production efficiency and product quality can be improved, and the labor intensity of workers is lowered; the resin filling step is finished by that resin flows into the die cavity under the action of
self weight and vacuum negative pressure, a high-
pressure injection machine is not required, energy is saved, major cost for
purchasing and maintaining the high-
pressure injection machine is saved, and cost is lowered.