公开(公告)号：US20200031065A1

公开(公告)日：2020-01-30

申请号：US16594462

申请日：2019-10-07

Applicant: LM WP PATENT HOLDING A/S

Inventor： Poul Erik HANSEN ,  Harsha TUMMALA

IPC: B29C70/54 ,  B29C70/44 ,  B29C70/48

Abstract: A method of manufacturing a fibre-reinforced polymer object by means of vacuum-assisted resin transfer moulding (VARTM), wherein fibre material is impregnated with liquid resin in a mould cavity comprising a rigid mould part having a mould surface defining an outer surface of the object, is described. One or more pressure sensors are connected to resin inlets of the VARTM system. A control unit is used for controlling a polymer supply unit based on measured resin pressure and is adapted to adjusting a resin flow rate, if pressure measured by the pressure sensors is below a lower threshold level or above a higher threshold level.