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1. 发明专利

JP2003308743A Method for manufacturing cv cable 有权
标题翻译：制造CV电缆的方法
公开(公告)号：JP2003308743A
公开(公告)日：2003-10-31
申请号：JP2002115689
申请日：2002-04-18
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： ISHIKAWA TORAICHI , KUNIMURA SATOSHI , ITO MASAHIKO , TAKAHASHI SUSUMU , FUKUMOTO SATOSHI
IPC分类号： H01B13/00 , H01B13/14 , H02G1/16
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing CV cable capable of simplifying a process, reducing work load and cost by eliminating labor for carrying drums winding up cable core one by one for heating process to eliminate methane gas from CV cable and eliminating necessity of providing special equipment and structure such as heater line on the cable conductive body.
SOLUTION: In an electric power cable manufacturing line, an inner part semiconductive layer, an insulating layer, and an outer part semiconductive layer are formed on a cable conductive body from a cross head by three layer simultaneous extrusion, cable core 1 heated and cooled for bridging is wound up around a drum and is carried in a dry chamber, and dry air passage is connected to a winding up end terminal 1a of the cable core 1. Residual methane gas is diffused under conditions of heating and drying in the dry chamber and dry air is blown in to promote diffusion of methane gas to a conductive body side.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种能够简化工艺的CV电缆的制造方法，减少工作负荷和成本，通过消除用于携带卷绕卷芯的卷筒一个接一个的加热处理以从CV电缆中除去甲烷气体并消除了在电缆导体上提供加热线等特殊设备和结构的必要性。解决方案：在电力电缆生产线中，通过三层同时挤压在十字头上的电缆导电体上形成内部半导体层，绝缘层和外部半导体层，电缆芯1被加热并且用于桥接的冷却被卷绕在滚筒周围并被携带在干燥室中，并且干燥空气通道连接到电缆芯1的卷绕端部1a。残余甲烷气体在加热和干燥的条件下扩散吹入干燥室和干燥空气以促进甲烷气体向导电体侧的扩散。版权所有（C）2004，JPO

2. 发明专利

JPH0547238A SEMICONDUCTOR COMPOSITION AND POWER CABLE 失效
公开(公告)号：JPH0547238A
公开(公告)日：1993-02-26
申请号：JP22881391
申请日：1991-08-14
申请人： FUJIKURA LTD
发明人： ISHIKAWA TORAICHI , TANIDA MITSUTAKA , TAKAHASHI SUSUMU , TOMARU ISAMU , NAGAI KENJI , IGARASHI MITSURU
IPC分类号： C08K3/34 , C08L23/08 , C08L31/04 , C08L51/06 , H01B1/24 , H01B7/29 , H01B9/02
摘要： PURPOSE:To provide a semiconductor composition-excellent in characteristic, particularly, excellent in heat resistance. CONSTITUTION:To 100 parts by weight of a blend composite obtained by blending a polymer in which vinyl chloride is grafted to ethylene vinyl acetate copolymer (EVA-PVC) and ethylene vinyl acetate copolymer (EVA) in a blend ratio of 90/10 to 20/80, and adding a proper amount of a conductivity giving agent thereto, 0.5-20 parts by weight of zeolite is blended. The zeolite provides excellent heat resistance.

3. 发明专利

JPH04101309A POWER CABLE 失效
公开(公告)号：JPH04101309A
公开(公告)日：1992-04-02
申请号：JP21651490
申请日：1990-08-17
申请人： FUJIKURA LTD
发明人： ISHIKAWA TORAICHI , TANIDA MITSUTAKA , TAKAHASHI SUSUMU , IGARASHI MITSURU , NAGAI KENJI
IPC分类号： H01B1/24 , H01B9/02
摘要： PURPOSE:To liberate a power cable from directionality, enable exfoliation in any direction, and facilitate the termination work by providing a semiconductive layer consisting of a specific resin compound. CONSTITUTION:The conductor 1 of a power cable concerned is covered with an inner semiconductive layer 2, whereover an electric insulating layer 3 is put. The resin compound to constitute this semiconductive layer 2 consists in a mixture of 10-100 parts by wt. electroconductive carbon black and 100 parts by wt. ethylene chlorinate copolymer bridged alloy resin, or a blend polymer of this resin with ethylene series copolymer. To exfoliate the semiconductive layer 2 from the insulative layer 3 in the termination work for the cable, the exfoliation can be done for any required length in the desired direction. Thus the termination works will be facilitated.

4. 发明专利

JPH0479105A POWER CABLE 失效
公开(公告)号：JPH0479105A
公开(公告)日：1992-03-12
申请号：JP19157690
申请日：1990-07-19
申请人： FUJIKURA LTD
发明人： ISHIKAWA TORAICHI , TANIDA MITSUTAKA , TAKAHASHI SUSUMU , IGARASHI MITSURU , NAGAI KENJI
IPC分类号： H01B1/24 , H01B9/02
摘要： PURPOSE:To peel a semi-conductive layer in some direction by using as the semi-conductive layer a composition that is obtained when 5 to 20 parts by weight of a compatible modifier and 10 to 100 parts by weight of conductive carbon black are blended into 100 parts by weight of a blended polymer of hydrogen-added acrylonitrile-butadiene copolymer and ethylene-vinyl acetate copolymer, the compatible modifier being obtained by grafting acrylonitrile- styrene copolymer in EVA. CONSTITUTION:A semi-conductive layer 4 uses a composition obtained by blending 5 to 20 parts by weight of a compatible modifier (EVA-g-As) and 10 to 100 parts by weight of conductive carbon black into 100 parts by weight of a blended polymer (base polymer) of hydrogen-added acrylonitrile-butadiene copolymer (hydrogen-added NBR) and ethylene-vinyl acetate copolymer (EVA), the compatible modifier being obtained by grafting acrylonitrile-styrene copolymer in EVA. Therefore the base polymer itself becomes a uniformly dispersed system and the semi-conductive layer can be peeled as much as needed in some direction.

5. 发明专利

JPH0428506A ROTARY-CUTTER POSITIONING DEVICE IN PELLETIZER 失效
公开(公告)号：JPH0428506A
公开(公告)日：1992-01-31
申请号：JP13452690
申请日：1990-05-24
申请人： FUJIKURA LTD
发明人： MATSUURA KATSUHISA , SUZUKI YASUO , ISHIKAWA TORAICHI
IPC分类号： B29B9/06
摘要： PURPOSE:To adjust a clearance between a rotary cutter and a die plate easily without interrupting the operation of a pelletizer by detecting the contact of the rotary cutter and the die plate by closing a contact detector and conforming the zero point of a pneumatic gauge at the position of the contact. CONSTITUTION:A worm 5 is turned (a manual handle is rotated in a simple manual handle type), a shaft 4 is moved, and a rotary cutter 3 is brought into contact lightly with the end face of a die plate 21. The contact can be recognized easily because the ammeter 73 of a contact detector 7 is swung largely. The pointer of a pneumatic gauge 6 is conformed to zero in a scale at the point of the contact. The operation is called zero-point setting, but the rotary cutter 3 is moved by rotating the worm 5 in the opposite direction when the zero-point setting of the pneumatic gauge 6 is completed, and a clearance between the rotary cutter 3 and the die plate 21 is set at an optimum value, normally the value of 20-30mum.

6. 发明专利

JPH03182533A FLAME-RETARDING COMPOSITION 失效
公开(公告)号：JPH03182533A
公开(公告)日：1991-08-08
申请号：JP32225389
申请日：1989-12-12
申请人： FUJIKURA LTD
发明人： ISHIKAWA TORAICHI , SUNATSUKA HIDEO , MATSUURA MICHIO , ASABA SHOJI
IPC分类号： C08K3/00 , C08L23/00 , C08L87/00 , H01B3/44
摘要： PURPOSE:To obtain a flame-retarding composition excellent in flame retardancy and not evolving any corrosive gas such as noxious hydrogen chloride when burnt by mixing a polyolefin resin with an inorganic flame retardant and a powdery polysilazane in a specified mixing ratio. CONSTITUTION:A polyolefin resin (e.g. low-density PE, high-density PE, PP or ethylene/vinyl acetate copolymer) is mixed with a combination of 50-200 pts.wt., per 100 pts.wt. resin, inorganic flame retardant (e.g. aluminum hydroxide or magnesium hydroxide) with a powdery polysilazane (e.g. S-polysilazane of formula 1 or N-polysilazane of formula II). When a combination of the polysilazane with the inorganic flame retardant is added to the resin, the amount of the inorganic flame retardant used can be decreased though the amount of the polysilazane used is small, and a polyolefin resin composition of high flame retardancy and good mechanical properties, low-temperature resistance, etc., can be obtained. This composition does not evolve any noxious corrosive gas when burnt, so that it is highly desirable as a coating material for wires, cables, etc.

7. 发明专利

JPH0329211A ELECTRIC POWER CABLE 失效
公开(公告)号：JPH0329211A
公开(公告)日：1991-02-07
申请号：JP16330789
申请日：1989-06-26
申请人： FUJIKURA LTD
发明人： ISHIKAWA TORAICHI , TAKAHASHI SUSUMU , NAGAI KENJI , IGARASHI MITSURU
IPC分类号： C08K3/04 , C08L23/02 , C08L29/00 , H01B1/24 , H01B9/02
摘要： PURPOSE:To make terminal treatment work of an electric power cable easy by composing a semiconductive layer with a resin composition consisting of a polyolefin-based polymer and a conductive carbon black and acrylic polymer additive in a defined ratio to the polyolefin polymer. CONSTITUTION:A bond-type inner semiconductive layer 2 is formed on a conductor 1 and an insulating layer 3 of cross-linked polyethylene, etc., is formed on the layer 2. Then, an outer semiconductor layer 4 of a composition consisting of 100 pts.wt. of polyolefin-based polymer, 30-80 pts.wt. of conductive carbon black, and 0.1-10 pts.wt. of acrylic polymer additive is formed further on the layer 3. As a result, the layer 4 has proper adhesion and releasability property to the layer 3 and can be peeled off in optional direction to a necessary extent and terminal treatment work becomes easy.

8. 发明专利

JPH02258850A FLAME-RETARDANT RESIN COMPOSITION 失效
公开(公告)号：JPH02258850A
公开(公告)日：1990-10-19
申请号：JP8080289
申请日：1989-03-31
申请人： FUJIKURA LTD
发明人： ARAI TOSHIHIRO , SUNATSUKA HIDEO , TANIDA MITSUTAKA , MATSUURA MICHIO , ISHIKAWA TORAICHI
IPC分类号： C08K3/02 , C08K3/04 , C08L23/02 , C08L87/00 , H01B3/44
摘要： PURPOSE:To obtain the subject composition having excellent flame-retardance and suitable as a coating material for electric wire, cable, etc., without lowering the mechanical properties and deteriorating the freeze-resistance, etc., of the base polymer by compounding an olefinic polymer with specific amounts of a polyimide and red phosphorus. CONSTITUTION:The objective composition is produced by compounding (A) 100 pts.wt. of an olefinic polymer (e.g. polyethylene or polypropylene) with (B) 0.1-80 pts.wt. of a polyimide and (C) 0.5-20 pts.wt. of red phosphorus.

9. 发明专利

JPH02174008A POWER CABLE 失效
公开(公告)号：JPH02174008A
公开(公告)日：1990-07-05
申请号：JP32874388
申请日：1988-12-26
申请人： FUJIKURA LTD
发明人： ISHIKAWA TORAICHI , TAKAHASHI SUSUMU , HATADA MICHINORI , IGARASHI MITSURU , NAGAI KENJI
IPC分类号： H01B9/02 , H01B1/24 , H01B9/00
摘要： PURPOSE:To easily peel a semiconducting layer in an optional direction by using a resin composition material with specific combinations of a specific base polymer and conducting carbon black as the semiconducting layer. CONSTITUTION:An inner semiconducting layer 2 is coated on the outer periphery of the conductor 1 of a power cable, an insulating layer 3 is coated on it, and an outer semiconducting layer 4 or the like is coated on the insulating layer 3. The outer semiconducting layer 4 is formed with a resin composition material combined with conducting carbon black 10-100 pts.wt. to a base polymer 100 pts.wt. made of a 4-methyl pentene-1-alpha-olefin copolymer 5-90 pts.wt. and another non-polar polyolefin polymer 10-95 pts.wt. The semiconducting layer 4 can be peeled from the insulating layer 3 in an optional direction.

10. 发明专利

JPH01261438A FLAME-RETARDING COMPOSITION 失效
公开(公告)号：JPH01261438A
公开(公告)日：1989-10-18
申请号：JP9001788
申请日：1988-04-12
申请人： FUJIKURA LTD
发明人： ISHIKAWA TORAICHI , SUNATSUKA HIDEO , HASEGAWA MASAKI , YOSHINO AKIRA
IPC分类号： C08L23/00 , C08K3/04
摘要： PURPOSE:To obtain the title composition having improved flame retardancy, by adding carbon black to a halogen-free polyolefin resin. CONSTITUTION:100 pts.wt. halogen-free polyolefin resin (e.g., PE) is mixed with 0.05-50 pts.wt. carbon black of a particle diameter of 1-400mum and, optionally, an inorganic flame retardant [e.g., Mg(OH)2], an inorganic filler (e.g., CaCO3) or the like.

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