Resin Transfer Molding for Honeycomb Structure with Fast Speed

摘要

The Resin transfer molding (RTM) technique was well developed and applied to component both aerospace and general industries. For the structures with honeycomb core, RTM resins to fill the core cells and increase the density. Presented here is a new sealing process for the R of honeycomb structures. A thermoplastic polyurethane film was first heated and adhered on surface of honeycomb core to seal the cells. Then the general RTM process was conducted the honeycomb products were finished. The cells with resins filled in were less than Flatwise tension and three-point bending tests were carried out to verify the bonding between film and honeycomb core. This honeycomb core sealing can be done in less than forty mini and the whole RTM process can be much faster than the existing methods.