High-pressure RTM-tool

We developed and manufactured the HD-RTM mold (high-pressure resin transfer molding) for the series production of a high pressure vessel for hydrogen. A hollow body made of CFRP fiber braid with a high fiber volume content is placed into the two-part mold. Subsequently, a low-viscosity resin-based composite is injected under high pressure, thus penetrating the braid and enclosing the individual fibers uniformly and without leaving any voids. To ensure process reliability, BBG has developed and integrated a sealing system for precise production under high pressure, which facilitates industrial production without any complex processing steps further downstream.