| 摘要 |
<p>A method for producing shell-moulded casting structures, particularly interior decorative details for the car industry, whereby a surface layer for the detail is provided in a bottom mould portion (1), which is effected in that a surface layer mould lid (2) is fitted in the bottom mould portion (1), thus that a closed mould cavity (3) is obtained, whereupon a thermosetting compound, preferably a poly-urethane elastomer, intended to form surface layer (4a, Fig. 2) in the detail is injected (4) into said mould cavity (Fig. 1). The mould is opened after terminated setting and the surface layer mould lid is removed. Thereupon are performed the following steps, known per se: any insert details (5) are mounted in the mould (Fig. 2), an expanding, thermosetting plastic compound (6) is poured into the mould before or after fitting of a mould lid (7), whereupon said plastic compound is brought to fill the mould cavity limited by the surface layer and the mould lid (Fig. 3), the moulded detail (8) (Fig. 4) thereupon being demoulded after the end of the setting period, and the detail finally being subjected to a cleaning operation.</p> |
