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1. 发明申请

WO2005042226A1 METHOD AND PLANT FOR THE INTRODUCTION OF A LIQUID INTO A MOLTEN MASS UNDER PRESSURE 审中-公开
标题翻译：将液体引入压力下的高质量的方法和设备
公开(公告)号：WO2005042226A1
公开(公告)日：2005-05-12
申请号：PCT/IT2003/000704
申请日：2003-10-31
申请人： PIRELLI & C., S.P.A. , BALCONI, Luca , DELL'ANNA, Gaia , BAREGGI, Alberto , BELLI, Sergio
发明人： BALCONI, Luca , DELL'ANNA, Gaia , BAREGGI, Alberto , BELLI, Sergio
IPC分类号： B29C45/18
CPC分类号： H01B13/14 , B29C47/0004 , B29C47/0023 , B29C47/065 , B29C47/1045 , B29C47/1063 , B29C47/26 , B29C47/28 , B29K2101/10 , B29K2101/12 , B29K2105/0005 , B29K2105/0023 , B29K2105/16 , B29K2995/0005 , B29K2995/0006 , B29K2995/0007 , B29L2031/3462
摘要： A method and plant (1) for the introduction of a liquid into a molten mass under pressure are described. Such a method and such a plant (1) are particularly but not exclusively suitable for the formation of a coating layer (5, 6, 7) on a cable element comprising at least one conductor (4), said layer (5, 6, 7) comprising an extruded thermoplastic polymer forming a continuous phase incorporating a dielectric liquid, and are useful, for example in the production of an electric cable (3) for the transportation and/or distribution of electrical power. The method comprises the steps of bringing the liquid to a predetermined pressure greater than the pressure of the molten mass; feeding the liquid into a plurality of storage tanks (12); and injecting the liquid into the molten mass at an injection pressure equal to the above-mentioned predetermined pressure by means of a plurality of injectors (13) in respective fluid communication with the plurality of storage tanks (12). Advantageously, this allows to accomplish a substantial continuity of delivery of the liquid in a technologically simple way and at low costs, while ensuring a dispersion as uniform as possible of the liquid within the molten mass.
摘要翻译：描述了用于在压力下将液体引入熔融物质的方法和设备（1）。这种方法和这种植物（1）特别但不排他地适用于在包括至少一个导体（4）的电缆元件上形成涂层（5,6,7），所述层（5,6） 7）包括形成包含介电液体的连续相的挤出热塑性聚合物，并且可用于例如生产用于运输和/或分配电力的电缆（3）。该方法包括使液体达到大于熔融物质压力的预定压力的步骤; 将液体进料到多个储罐（12）中; 并且通过与多个储罐（12）流体连通的多个喷射器（13）以等于上述预定压力的注射压力将液体注入熔融物质中。有利地，这允许以技术上简单的方式并且以低成本实现液体的输送的实质连续性，同时确保尽可能均匀的在熔融物质内的液体的分散体。

2. 发明申请

WO2006056218A1 CABLE MANUFACTURING PROCESS 审中-公开
标题翻译：电缆制造工艺
公开(公告)号：WO2006056218A1
公开(公告)日：2006-06-01
申请号：PCT/EP2004/013289
申请日：2004-11-23
申请人： PRYSMIAN CAVI E SISTEMI ENERGIA S.R.L. , DELL'ANNA, Gaia , BAREGGI, Alberto , BELLI, Sergio
发明人： DELL'ANNA, Gaia , BAREGGI, Alberto , BELLI, Sergio
IPC分类号： H01B13/14
CPC分类号： B29C47/26 , B29C47/0016 , B29C47/0023 , B29C47/025 , B29C47/065 , B29C47/265 , B29L2031/3462 , H01B13/141 , H01B13/143
摘要： The present invention concerns a process for manufacturing a cable, said cable comprising: a conductor; an inner semiconductive layer surrounding said conductor and having a thickness lower than or equal to 0.4 mm;, and an insulating layer surrounding said inner semiconductive layer. The process comprises the step of co-extruding the inner semiconductive layer and the insulating layer. Said step comprises: a) providing a first annular flow of inner semiconductive material and a second annular flow of insulating material; b) contacting the outer surface of said first annular flow and the inner surface of said second annular flow at an axial distance from the contacting point where the inner surface of said first annular flow contacts the conductor; c) selecting in combination said predetermined feeding speed and said contacting point (D), as a function of the dynamic viscosity (η) of the inner semiconductive material and of the insulating material, so that a ratio between the shear stress of the inner semiconductive layer at the radially inner wall of the extrusion die and the shear stress of the insulating layer at the radially outer wall of the extrusion die, in proximity of said contacting point, is comprised from about 0.5 to 4; d) compression extruding the insulating layer and the inner semiconductive layer onto the conductor.
摘要翻译：本发明涉及一种用于制造电缆的方法，所述电缆包括：导体; 围绕所述导体并具有小于或等于0.4mm的厚度的内部半导体层;以及围绕所述内部半导体层的绝缘层。该方法包括共挤出内部半导体层和绝缘层的步骤。所述步骤包括：a）提供内半导体材料的第一环形流和绝缘材料的第二环形流; b）使所述第一环形流的外表面与所述第二环形流体的内表面在距离所述第一环形流动体的内表面接触导体的接触点的轴向距离处接触; c）作为内半导体材料和绝缘材料的动态粘度（λ）的函数，选择所述预定进给速度和所述接触点（D）的组合，使得内部半导体的剪切应力在挤出模头的径向内壁处的层和在所述接触点附近的挤出模头的径向外壁处的绝缘层的剪切应力为约0.5至4; d）将绝缘层和内部半导体层压缩挤出到导体上。

3. 发明申请

WO2005055250A1 IMPACT RESISTANT CABLE 审中-公开
标题翻译：防撞电缆
公开(公告)号：WO2005055250A1
公开(公告)日：2005-06-16
申请号：PCT/EP2003/013834
申请日：2003-12-03
申请人： PIRELLI & C.S.p.A. , DELL'ANNA, Gaia , SCELZA, Cristiana , BELLI, Sergio , BAREGGI, Alberto
发明人： DELL'ANNA, Gaia , SCELZA, Cristiana , BELLI, Sergio , BAREGGI, Alberto
IPC分类号： H01B7/18
CPC分类号： H01B3/20 , H01B7/185 , H01B7/1875 , H01B7/189
摘要： The present invention concerns a cable for use in a predetermined voltage class, said cable for use in a predetermined voltage class, said cable comprising: - at least one conductor; a at least one extruded insulating layer surrounding said conductor, said insulating layer being made from a non-crosslinked insulating material comprising at least one thermoplastic polymer and at least one dielectric liquid, said insulating layer having a thickness such as to provide a voltage gradient on the outer surface of the cable insulating layer not smaller than 1.0 kV/mm; and - a protective element around said extruded insulating layer having a thickness and mechanical properties selected to provide a predetermined impact resistance capability, said protective element comprising at least one expanded polymeric layer, said thickness being sufficient to prevent a detectable insulating layer damage upon impact of at least 25 J energy. The insulating layer thickness and the protective element thickness can be selected in combination to minimize the overall cable weight while preventing a detectable insulating layer damage upon impact of at least 25 J energy.
摘要翻译：本发明涉及一种用于预定电压等级的电缆，所述电缆用于预定电压等级，所述电缆包括： - 至少一个导体; 围绕所述导体的至少一个挤出绝缘层，所述绝缘层由包含至少一种热塑性聚合物和至少一种电介质液体的非交联绝缘材料制成，所述绝缘层具有如下厚度以提供电压梯度电缆绝缘层的外表面不小于1.0kV / mm; 以及 - 围绕所述挤压绝缘层的保护元件，其具有被选择为提供预定抗冲击能力的厚度和机械性能，所述保护元件包括至少一个发泡聚合物层，所述厚度足以防止可检测的绝缘层在冲击至少25 J的能量。可以组合选择绝缘层厚度和保护元件厚度，以使总体电缆重量最小化，同时防止在至少25J的能量冲击时可检测的绝缘层损坏。

4. 发明申请

WO2005015577A1 CONTINUOUS PROCESS FOR MANUFACTURING ELECTRICAL CABLES 审中-公开
标题翻译：制造电气电缆的连续工艺
公开(公告)号：WO2005015577A1
公开(公告)日：2005-02-17
申请号：PCT/EP2003/008194
申请日：2003-07-25
申请人： PIRELLI & C. S.P.A. , BELLI, Sergio , BAREGGI, Alberto , DELL'ANNA, Gaia , SCELZA, Cristiana , DONAZZI, Fabrizio
发明人： BELLI, Sergio , BAREGGI, Alberto , DELL'ANNA, Gaia , SCELZA, Cristiana , DONAZZI, Fabrizio
IPC分类号： H01B13/00
CPC分类号： H01B13/2626 , H01B7/189 , H01B13/00 , H01B13/14 , H01B13/262
摘要： The present invention concerns a process for manufacturing an electric cable. In particular, the process comprises the phases of: a) feeding a conductor at a predetermined feeding speed; b) extruding a thermoplastic insulating layer in a position radially external to the conductor; c) cooling the extruded insulating layer, and forming a circumferentially closed metal shield around said extruded insulating layer. The process according to the invention is carried out continuously, i.e. the time occurring between the end of the cooling phase and the beginning of the shield forming phase is inversely proportional to the feeding speed of the conductor.
摘要翻译：本发明涉及一种用于制造电缆的方法。特别地，该方法包括以下阶段：a）以预定的进料速度供给导体; b）在导体的径向外部的位置挤出热塑性绝缘层; c）冷却所述挤出的绝缘层，以及在所述挤出绝缘层周围形成周向封闭的金属屏蔽。根据本发明的方法是连续进行的，即在冷却阶段的结束和屏蔽形成阶段的开始之间发生的时间与导体的进给速度成反比。

5. 发明申请

WO2006114118A1 CABLE MANUFACTURING PROCESS 审中-公开
标题翻译：电缆制造工艺
公开(公告)号：WO2006114118A1
公开(公告)日：2006-11-02
申请号：PCT/EP2005/004510
申请日：2005-04-27
申请人： PRYSMIAN CAVI E SISTEMI ENERGIA S.R.L. , CASTIGLIONI, Walter , BALCONI, Luca , BAREGGI, Alberto , BELLI, Sergio
发明人： CASTIGLIONI, Walter , BALCONI, Luca , BAREGGI, Alberto , BELLI, Sergio
IPC分类号： B29C47/28 , B29C47/92
CPC分类号： B29C47/28 , B29C47/0023 , B29C47/92 , B29C2947/92019 , B29C2947/92209 , B29C2947/92409 , B29C2947/92466 , B29C2947/92514 , B29C2947/92571 , B29C2947/9258 , B29C2947/926 , B29C2947/92704 , B29C2947/92904 , B29C2947/92933 , B29C2947/92952 , B29L2031/3462
摘要： The present invention relates to a method for manufacturing a cable, said cable comprising at least one transmissive element (3) and at least one coating layer (100) made of a polymeric material and arranged at a radially outer position with respect to the transmissive element (3). The method comprises the steps of: a) feeding the polymeric material to an extrusion apparatus including an extrusion head (1), the extrusion head (1) comprising: a male die (12); a female die (13), coaxially arranged with respect to said male die (12); a conveying channel (20), at least one portion of which being defined between said male die (12) and said female die (13); and b) controlling a cross-sectional area of said at least one portion of the conveying channel (20) in response to a detected quantity, said quantity being caused to vary during the manufacturing of the cable as a function of the actual extrusion speed. The present invention further relates to an extrusion apparatus for carrying out said process.
摘要翻译：本发明涉及一种用于制造电缆的方法，所述电缆包括至少一个透射元件（3）和由聚合物材料制成的至少一个涂层（100），并且布置在相对于透射元件的径向外部位置（3）。该方法包括以下步骤：a）将聚合物材料输送到包括挤出头（1）的挤出设备中，挤压头（1）包括：阳模（12）; 相对于所述阳模（12）同轴布置的阴模（13）; 输送通道（20），其至少一部分限定在所述阳模（12）和所述阴模（13）之间; 以及b）响应于检测到的量控制所述输送通道（20）的所述至少一个部分的横截面积，所述数量在制造电缆期间随着实际挤出速度的变化而变化。本发明还涉及一种用于执行所述方法的挤压设备。

6. 发明申请

WO2003046592A1 METHOD FOR TESTING AN ELECTRICAL CABLE, MODIFIED ELECTRICAL CABLE AND PROCESS FOR PRODUCING IT 审中-公开
标题翻译：用于测试电缆，改进电缆及其制造方法的方法
公开(公告)号：WO2003046592A1
公开(公告)日：2003-06-05
申请号：PCT/IB2001/002234
申请日：2001-11-27
申请人： PIRELLI S.P.A. , BALCONI, Luca , BAREGGI, Alberto , BELLI, Sergio
发明人： BALCONI, Luca , BAREGGI, Alberto , BELLI, Sergio
IPC分类号： G01R31/12
CPC分类号： G01R31/1272 , G01R31/021
摘要： The present invention relates to a method for the, electrical testing of a protective polymeric layer of an electrical cable comprising at least one metal element in a position radially internal to said protective polymeric layer. This method comprises the steps of applying a semiconductive polymeric layer in a position radially external to said protective polymeric layer, and of electrically connecting said semiconductive polymeric layer to said at least one metal layer. The present invention also relates to an electrical cable comprising a semiconductive polymeric layer in a position radially external to said protective polymeric layer, and also to a process for producing said cable.
摘要翻译：本发明涉及一种用于对电缆的保护性聚合物层进行电气测试的方法，所述电缆包括在所述保护聚合物层的径向内部位置的至少一个金属元素。该方法包括以下步骤：将半导体聚合物层施加在所述保护性聚合物层的径向外侧的位置，以及将所述半导体聚合物层电连接到所述至少一个金属层。本发明还涉及一种电缆，其包括在所述保护性聚合物层的径向外侧的位置的半导体聚合物层，以及用于生产所述电缆的方法。

7. 发明申请

WO2003023791A1 EXTRUSION METHOD AND APPARATUS FOR PRODUCING A CABLE 审中-公开
标题翻译：挤出方法和生产电缆的装置
公开(公告)号：WO2003023791A1
公开(公告)日：2003-03-20
申请号：PCT/EP2002/009815
申请日：2002-09-03
申请人： PIRELLI S.P.A. , BALCONI, Luca , BAREGGI, Alberto , BELLI, Sergio , VEGGETTI, Paolo
发明人： BALCONI, Luca , BAREGGI, Alberto , BELLI, Sergio , VEGGETTI, Paolo
IPC分类号： H01B13/14
CPC分类号： B29C47/28 , B29C47/0016 , B29C47/0023 , B29C47/0026 , B29C47/025 , B29C47/06 , B29C47/065 , B29C47/128 , B29C47/26 , B29K2023/06 , B29K2023/0625 , B29K2023/0633 , B29K2023/0641 , B29K2023/065 , B29K2023/083 , B29K2023/12 , B29K2027/06 , B29K2055/02 , B29K2067/00 , B29K2067/006 , B29K2075/00 , B29K2077/00 , H01B3/30 , H01B13/141 , H01B13/142 , H01B13/144 , H01B13/24
摘要： An extrusion method and apparatus (11) for producing a cable (1, 101) including at least one core (7) comprising at least one transmissive element (2, 40), and at least one pair of coating layers (8, 9) arranged at a radially outer position with the respect of the core (7) are described. The method of the invention includes the simultaneous steps of depositing by co-extrusion at least one coating layer (8) of polymeric material and one coating layer (9) of expanded polymeric material and of maintaining a residual pressure not greater than the external pressure in a substantially annular interspace (21) defined between the coating layers. With respect to the methods of the prior art, the present invention allows to avoid the formation of bubbles at the interface between said at least one coating layer (8) of polymeric material and the coating layer (9) of expanded polymeric material, attaining an optimal adhesion between said layers (8, 9).
摘要翻译：一种用于制造包括至少一个包括至少一个透射元件（2）的芯（7）的电缆（1,101）和至少一对涂层（8,9）的挤出方法和装置（11）在芯部（7）的径向外侧位置配置。本发明的方法包括通过共挤出聚合材料的至少一个涂层（8）和一个膨胀聚合物材料的一个涂层（9）并保持不大于外部压力的残余压力的同时步骤限定在所述涂层之间的基本上环形的间隙（21）。关于现有技术的方法，本发明允许避免在聚合材料的所述至少一个涂层（8）与膨胀聚合物材料的涂层（9）之间的界面处形成气泡，从而达到所述层（8,9）之间的最佳粘合。

8. 发明申请

WO2004057626A1 METHOD FOR PRODUCING A COATING LAYER MADE OF EXPANDABLE AND CROSS-LINKABLE MATERIAL IN A CABLE 审中-公开
标题翻译：用于生产电缆中可扩展和可交联材料的涂层的方法
公开(公告)号：WO2004057626A1
公开(公告)日：2004-07-08
申请号：PCT/IT2002/000824
申请日：2002-12-23
申请人： PIRELLI & C. S.P.A. , BALCONI, Luca , BAREGGI, Alberto , BELLI, Sergio
发明人： BALCONI, Luca , BAREGGI, Alberto , BELLI, Sergio
IPC分类号： H01B13/14
CPC分类号： H01B13/145 , B29C47/0004 , B29C47/0016 , B29C47/025 , B29C47/8805 , B29K2301/10 , H01B9/027
摘要： A method is described for producing a cable (1, 101) including: at least one transmissive element (2), such as for example an element transmitting electrical energy or optionally optical signals as well; and an expanded and cross-linked coating layer (5) in a radially outer position with respect to said at least one transmissive element (2), said coating layer (5) comprising a composition including an expandable and cross-linkable polymeric material. The method comprises the following steps of: a) extruding the composition; b) forming a coating layer made of expandable and cross-linkable polymeric material with the composition thus extruded; c) expanding the coating layer made of expandable and cross-linkable polymeric material; and d) cross-linking the above-mentioned coating layer made of expandable and cross-linkable polymeric material. The method of the invention provides that the above-mentioned expanding and cross-linking steps c) and d) are carried out by heating the coating layer made of expandable and cross-linkable polymeric material at atmospheric pressure by means of a suitable heating fluid. The method of the invention allows to attain a saving in production time and costs with respect to the prior art methods.
摘要翻译：描述了一种用于产生电缆（1,101）的方法，包括：至少一个透射元件（2），例如传输电能或可选地光信号的元件; 以及相对于所述至少一个透射元件（2）在径向外部位置的膨胀和交联的涂层（5），所述涂层（5）包括包含可膨胀和可交联的聚合材料的组合物。该方法包括以下步骤：a）挤出组合物; b）形成由可膨胀和可交联的聚合物材料制成的涂层，由此挤出组合物; c）使可膨胀和可交联聚合材料制成的涂层膨胀; 和d）交联上述由可膨胀和可交联的聚合物材料制成的涂层。本发明的方法提供了上述膨胀和交联步骤c）和d）通过借助于合适的加热流体在大气压下加热由可膨胀和可交联的聚合物材料制成的涂层来进行。本发明的方法允许在现有技术方法中节省生产时间和成本。

9. 发明申请

WO2004066318A1 CABLE WITH RECYCLABLE COVERING LAYER 审中-公开
标题翻译：具有可回收覆盖层的电缆
公开(公告)号：WO2004066318A1
公开(公告)日：2004-08-05
申请号：PCT/EP2004/000242
申请日：2004-01-15
申请人： PIRELLI & C. S.P.A. , PEREGO, Gabriele , SCELZA, Cristiana , DELL'ANNA, Gaia , BELLI, Sergio
发明人： PEREGO, Gabriele , SCELZA, Cristiana , DELL'ANNA, Gaia , BELLI, Sergio
IPC分类号： H01B3/20
CPC分类号： H01B3/20 , H01B3/22 , H01B3/441
摘要： Cable comprising at least one electrical conductor and at least one extruded covering layer based on a thermoplastic polymer material in admixture with a dielectric liquid, wherein: said thermoplastic polymer material is selected from: (a) at least one propylene homopolymer or at least one copolymer of propylene with at least one olefin comonomer; (b) a mechanical mixture comprising at least one propylene homopolymer or copolymer (a) and (c) at least one elastomeric copolymer of ethylene with at least one aliphatic α-olefin, and optionally a polyene. The cable of the invention possesses good mechanical and electrical properties, including high dielectric strength, in particular enabling it to be used at high operating temperature.
摘要翻译：电缆包括至少一个电导体和至少一个基于与介电液体混合的热塑性聚合物材料的挤压覆盖层，其中：所述热塑性聚合物材料选自：（a）至少一种丙烯均聚物或至少一种共聚物的丙烯与至少一种烯烃共聚单体; （b）包含至少一种丙烯均聚物或共聚物（a）和（c）至少一种乙烯与至少一种脂族α-烯烃的弹性体共聚物和任选的多烯的机械混合物。本发明的电缆具有良好的机械和电学性质，包括高介电强度，特别是能够在高工作温度下使用。

10. 发明申请

WO2004066317A1 CABLE WITH RECYCABLE COVERING LAYER 审中-公开
标题翻译：电缆带可重覆覆盖层
公开(公告)号：WO2004066317A1
公开(公告)日：2004-08-05
申请号：PCT/EP2003/000482
申请日：2003-01-20
申请人： PEREGO, Gabriele , SCELZA, Cristiana , DELL'ANNA, Gaia , BELLI, Sergio
发明人： PEREGO, Gabriele , SCELZA, Cristiana , DELL'ANNA, Gaia , BELLI, Sergio
IPC分类号： H01B3/20
CPC分类号： H01B3/20 , H01B3/22 , H01B3/441
摘要： Cable comprising at least one electrical conductor and at least one extruded covering layer based on a thermoplastic polymer material in admixture with a dielectric liquid, wherein: - said thermoplastic polymer material is selected from: a) at least one propylene homopolymer or at least one copolymer of propylene with at least one olefin comonomer selected from ethylene and an alpha-olefin other than propylene, said homopolymer or copolymer having a melting point greater than or equal to 130°C and a melting enthalpy of from 20 J/g to 100 J/g; b) a mechanical mixture comprising at least one propylene homopolymer or copolymer (a) and (c) at least one elastomeric copolymer of ethylene with at least one aliphatic alpha-olefin, and optionally a polyene; - the concentration by weight of said dielectric liquid in said thermoplastic polymer material is less or equal to the saturation concentration of said dielectric liquid in said thermoplastic polymer material. The cable of the invention possesses good mechanical and electrical properties, including high dielectric strength, in particular enabling it to be used at high operating temperature.
摘要翻译：电缆包括至少一个电导体和至少一个基于与介电液体混合的热塑性聚合物材料的挤压覆盖层，其中： - 所述热塑性聚合物材料选自：a）至少一种丙烯均聚物或至少一种共聚物的丙烯与至少一种选自乙烯和除丙烯以外的α-烯烃的烯烃共聚单体，所述均聚物或共聚物的熔点大于或等于130℃，熔融焓为20J / g至100J / G; b）包含至少一种丙烯均聚物或共聚物（a）和（c）至少一种乙烯与至少一种脂族α-烯烃和任选的多烯的弹性体共聚物的机械混合物; - 所述热塑性聚合物材料中所述电介质液体的重量浓度小于或等于所述热塑性聚合物材料中所述电介质液体的饱和浓度。本发明的电缆具有良好的机械和电学性质，包括高介电强度，特别是能够在高工作温度下使用。

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