Lawrence, Pennsylvania -- Polyurethane Composite-Spray-Moulding (PUR-CSM) technology is well-known to PU processors all over the world and the composites experts of Hennecke GmbH and its subsidiary Hennecke Inc., based in Lawrence (PA), continue to expand the portfolio.
For example, it has added Resin Transfer Molding (RTM) technology that allows high-performance lightweight parts to be produced fast, efficiently and in high volumes.
Hennecke said the ACMA Composites show held in Florida in early February provided a good occasion for the machinery and plant manufacturer to present this technology and further CSM process variants.
After a successful premiere at the ACMA trade fair last year, Hennecke also took part in America's leading composites exhibition in 2011.
Its presentation focused on its state-of-the-art spray mixhead portfolio as well as on advanced sample parts for the automotive and sanitary sectors.
These attracted a great deal of interest from many specialist visitors, not least because the use of PUR-CSM technology in the reinforcement of bathtubs and shower trays brings real added value to the end customer.
Important aspect in this context are: optimal thermal insulation, improved acoustic characteristics and the complete elimination of solvents.
Also, Hennecke notes, its polyurethane experts gave visitors a first insight into a new engineering approach that responds to the growing requirements regarding efficiency and environment in the automotive sector - the manufacture of fibre-reinforced structural components in a high-pressure RTM process (HP-RTM).
According to Hennecke, in contrast to the classic RTM process, this new technology enables the reactive mix to be quickly injected into the cavity. Curing times are extremely short and this guarantees optimised cycle times for the whole process, allowing even high numbers to be produced in an appropriate way.