KraussMaffei will present its High Pressure Resin Transfer Molding (HP-RTM) process for lightweight construction applications to automotive customers for the first time in the US.The partners KraussMaffei, Proper Group International Inc. and Kiefel Technologies Inc. will also present machines and processes for the automotive industry during an Open House on September in Warren, Michigan.
With the HP-RTM process, KraussMaffei offers machines and components on a turnkey basis for the entire process chain from handling of semi-finished products through to finishing of the complete composite fiber part.
“The optimum interaction between all system components, which comprise a press, a mold and a metering machine, is an important criterion in producing highly complex parts with a high fiber volume ratio,” said JP Mead, Vice President of KraussMaffei Corporation, who is responsible for the Reaction Process Machinery Segment in the US. The company has developed special technology as a system partner in the country for multi-process solutions in metering technology for highly reactive resins.
The Open House will also focus on direct processing in an injection molding compounder. An injection molding compounder is especially suitable for large-series production, for example of front end and instrument panel supports, door modules, insulating mats and other noise absorbers, explains KraussMaffei.
The materials are mixed and the components are produced in one machine. The matrix polymer is initially plasticized in a co-rotating twin-screw extruder and mixed with aggregates. Only then are the reinforcement fibers added to the polymer melt. The actual injection molding process then takes place via the injection piston.
Because of this single-stage process, the injection molding compounder ensures good melt homogeneity and a mixing effect, as well as high injection volumes and superb part quality. Components can therefore be combined with any fillers, reinforcement materials and substitution materials.