According to some embodiments, a token synchronization gateway may be recognized in a graph-based business process model, such as a business process modeling notation model. or lower and a difference of temperature between the liquidus temperature and the solidus temperature being 100\xb0 C. The extent of the compression is selected such that the resulting axial force which is exercised by the plastic component or by the liquid spring is sufficient for causing the desired after-pressure in the molten metal.