| 摘要 |
The method for the manufacture of a foamed polymer body from a mould composition is carried out using a shaping tool (5) in which a cross-linking reaction and a formation of foam bubbles takes place simultaneously. Before a processing of the mould composition, it is present in the form of two separately held components (A, B) which each include partial means for the carrying out of the cross-linking reaction and which differ by these partial means. The two mould composition components are mixed for preparation for the purpose of processing. The two components (A, B) are transported separately in two flows under elevated pressure at the start of the preparation. In thi s process, both components, or only one of the components, are impregnated with a physical foaming fluid (C). The two flows (32a, 32b) are combined under still elevated pressure after the impregnation and are mixed in this process. Finally, the reactive mixture formed by mixing is continuously extruded while lowering the pressure or is injected in a metered manner into a cavity of the shaping tool. The cavity is optionally heated for the acceleration of the cross-linking reaction.
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