发明名称 Process and apparatus to make plugged plate-like elements, in particular for covering paving, and plugged plate-like element thus obtained.
摘要 <p>A first elastomeric material (16) is compressed by a piston (13) to be transferred, through holes (11) formed in a dispensing plate (10) sealingly engaging the piston (13), to a plurality of recesses (8) formed in a moulding die (6), for manufacturing a plurality of plugs (5). After the material has been transferred to the forming recesses (8), the dispensing plate (10) and piston (13) are moved away from the moulding die (6) which is then lowered onto a pressure element (7) carrying a support slab (3) made from a second elastomeric material, by injection moulding. The plugs (5) are thereby applied to the support slab (3) and the slab and the plugs are then vulcanized. The plate-like element (1) thus obtained exhibits a support slab (3) on which a plurality of plugs (5) is homogeneously distributed, the material forming the plugs having physical features different from those of the material forming the slab. &lt;IMAGE&gt;</p>
申请公布号 EP0468148(A2) 申请公布日期 1992.01.29
申请号 EP19910107185 申请日期 1991.05.03
申请人 PIRELLI PRODOTTI DIVERSIFICATI S.P.A. 发明人 AMURRI, CESARE;GALLIZIA, ACHILLE
分类号 B29C43/18;B29C45/00;B29C45/02;B29C69/00;B29C70/74 主分类号 B29C43/18
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