FGS – The New Hot Chamber Die Casting

10,00
Preis inkl. MwSt., zzgl. Versand


Dr.-Ing. Norbert Erhard

Die Casting is a technically mature production process to manufacture complex components in large quantities. In the duality for plastic injection molding, it has ever been the ambition in die casting to reduce the casting runners of the mould further or even eliminate them. The specific requirements in non-ferrous metal die casting do not allow transferring the hot runner technologies of plastic injection moulding easily. Only with the development of the Frech Gating System (FGS-System) Frech has succeeded in producing parts with virtually no sprue in hot chamber die casting. In this connection the tempered melt is led to the cavity in the die and the casting process of the cell is modified so that the melt front in the die can always be hold at the outlet point of the heated runner system. Thus the FGS system is not only a hot runner system, but also a special hot chamber die casting process. As an obvious advantage of the FGS system the considerably reduced shot can be recognized as a result of eliminated parts of runners. The lower material capacity and the reduction of recycling portion per shot are the correlated advantages. In addition, there are further benefits, that can be demonstrated in the part quality, the process and energy efficiency. The lecture presents the FGS technology and proves the possibilities, potentials and advantages of the hot chamber die casting on practical examples.

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