VDI conference "Plastics in Automotive Engineering" Statement Helmut Gries
VDI conference "Plastics in Automotive Engineering" Statement Helmut Griesau” Statement Helmut Gries
Concerning the production of optical parts out of technical ther-moplastics, the feasibility of difficult geometries as well as the high standards of quality claims have top priority. The mould temperature control has a decisive influence on the economic production of that kind of high-quality products. Something similar applies to the pro-duction of visible parts with high-gloss surfaces that are becoming increasingly popular.
Innovative solutions for cooling and temperature control, that serve to save energy costs, are also in great demand. In times of tight funds and increasing energy costs, a reduced energy consumption of a complete production cell is more and more in the focus of the customer’s attention. This can be achieved by intelligent temperature control systems that reduce cycle times and minimize the number of rejects.
As far as the cooling technology is concerned, the trend goes towards increased savings of operating costs for the production of cold water as well as towards an increased use of waste heat for heating processes. The permanently increasing costs for heating oil, gas and electric energy put the manufacturers under pressure, so that more and more demands are made, to stipulate how many kilowatt hours are allowed for the processing of one kilogram plastic material.
As, due to the use of close-to-cavity mould inserts, not only the quality of the moulded parts is improved, but also the cycle times are enormously reduced, the customer profits twice. In combination with our energy-saving cooling systems the operating costs can be considerably reduced so that consequently the competitiveness is increased.
The topic “energy-saving” has become more and more important for us and our customers, but it has always to be compatible with innovative technologies. Here, the development of the dynamic cavity temperature control is a good example that proved a great success.
By means of this technology our customers are in a position to change mould temperatures up to 10 times faster than they could do with conventional temperature control systems and this with only a tenth of the previous energy consumption. Furthermore, this technology contributes to improve the quality of the moulded parts, particularly the part’s surface quality. In this regard I think of scratch-proof coatings, especially in the automotive area. With this technology also thick-walled parts for optical applications can now be produced in a much more efficient way than before.