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    • 6. 发明授权
    • Process for the production of a cable and device for performing this process
    • 用于生产用于执行该过程的电缆和设备的过程
    • US07175411B2
    • 2007-02-13
    • US10787209
    • 2004-02-27
    • Sergio BelliAngelo Giuseppe LocatelliGiovanni PozzatiPaolo Veggetti
    • Sergio BelliAngelo Giuseppe LocatelliGiovanni PozzatiPaolo Veggetti
    • B28B17/02
    • B29C47/8815B29C47/0016B29C47/02B29C47/686B29K2105/16B29K2995/0016B29L2031/3462
    • The present invention concerns a process for producting cables, in particular cables for the distribution of electrical energy or cables for telecommunications, more particularly, cables having at least one covering layer comprising a composition of high viscosity. More particularly, the present invention concerns cables having at least one covering layer comprising a polymeric composition comprising a mineral filler capable of imparting one or more specific properties to the aforesaid cables. In accordance with the present invention, said production process comprises the stages of: conveying at least one conducting element inside of an extruder; feeding the polymeric material, optionally premixed with other components of said composition, into said extruder, filtering the material transferred and plasticized by the screw of said extruder; depositing said material onto said at least one conducting element, the filtration operation being performed with a filtration efficiency greater than 0.8, preferably greater than 0.9. The present invention concerns, in addition, an apparatus for the purpose of performing the production process mentioned above.
    • 本发明涉及用于生产电缆的方法,特别是用于分配用于电信的电能或电缆的电缆,更具体地,涉及具有至少一个包含高粘度组合物的覆盖层的电缆。 更具体地说,本发明涉及具有至少一个覆盖层的电缆,该覆盖层包括聚合物组合物,该聚合物组合物包含能够赋予上述电缆一个或多个特定性能的矿物填料。 根据本发明,所述制造方法包括以下步骤:在挤出机内输送至少一个导电元件; 将可选地与所述组合物的其它组分预混合的聚合物材料进料到所述挤出机中,过滤由所述挤出机的螺杆转移和增塑的材料; 将所述材料沉积到所述至少一个导电元件上,所述过滤操作以大于0.8,优选大于0.9的过滤效率进行。 本发明另外涉及用于进行上述制造方法的装置。