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Hard EPR (ethylene propylene rubber) insulated power cable for ships and oceans and manufacturing method thereof

An ethylene propylene rubber insulation, power cable technology, applied in power cable, cable/conductor manufacturing, power cable with shielding layer/conductive layer, etc., can solve the problem of cable weight, large outer diameter, increase effective load, mechanical performance , poor aging performance, etc., to achieve the effects of superior insulation performance and aging performance, improved tensile performance, and improved water repellency performance

Active Publication Date: 2013-04-03
嘉兴君宏汽车配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, the current power cables for ships and oceans are mostly insulated with ordinary ethylene-propylene rubber. Ordinary ethylene-propylene rubber has low insulation resistance, poor mechanical properties, and poor aging performance. Requirements for light weight and increased payload of ships and offshore engineering equipment

Method used

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  • Hard EPR (ethylene propylene rubber) insulated power cable for ships and oceans and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Prepare the raw materials of insulating materials according to the following components and weight content: ethylene-propylene rubber 2470: 11 parts; ethylene-propylene rubber 4044: 9 parts; high-pressure polyethylene (melt index: 2.0): 1.0 parts; dicumyl peroxide DCP: 0.5 parts; triallyl isocyanurate TAIC-70: 0.3 parts; 2-mercaptobenzimidazole MB: 0.5 parts; titanium dioxide: 1 part; paraffin oil: 1.0 parts; zinc oxide: 1.0 parts ; Microcrystalline paraffin: 0.6 parts; Stearic acid: 0.2 parts; White carbon black: 1 part; Ultrafine talcum powder: 10 parts; Modified calcined clay: 12 parts;

[0021] The production includes the following steps in sequence: First, mix ethylene-propylene rubber 2470, ethylene-propylene rubber 4044 and high-pressure polyethylene; then add titanium dioxide, paraffin oil, zinc oxide, microcrystalline paraffin, stearic acid, and white carbon black in sequence , ultra-fine talcum powder and modified calcined clay for 9 minutes to make each compo...

Embodiment 2

[0024]Prepare the raw materials of insulating materials according to the following components and weight content: ethylene-propylene rubber 2470: 11 parts; ethylene-propylene rubber 4044: 9 parts; high-pressure polyethylene (melt index: 2.0): 1.2 parts; dicumyl peroxide DCP: 0.8 parts; triallyl isocyanurate TAIC-70: 0.35 parts; 2-mercaptobenzimidazole MB: 0.6 parts; titanium dioxide: 1.3 parts; paraffin oil: 1.2 parts; zinc oxide: 1.3 parts ; Microcrystalline paraffin: 0.8 parts; Stearic acid: 0.4 parts; White carbon black: 1.5 parts; Ultrafine talcum powder: 12 parts; Modified calcined clay: 14 parts;

[0025] The production includes the following steps in sequence: First, mix ethylene-propylene rubber 2470, ethylene-propylene rubber 4044 and high-pressure polyethylene; then add titanium dioxide, paraffin oil, zinc oxide, microcrystalline paraffin, stearic acid, and white carbon black in sequence , ultra-fine talc powder and modified calcined clay for 10 minutes to make each ...

Embodiment 3

[0028] Prepare the raw materials of insulating materials according to the following components and weight content: ethylene-propylene rubber 2470: 11 parts; ethylene-propylene rubber 4044: 9 parts; high-pressure polyethylene (melt index: 2.0): 1.5 parts; dicumyl peroxide DCP: 1.0 parts; triallyl isocyanurate TAIC-70: 0.4 parts; 2-mercaptobenzimidazole MB: 0.8 parts; titanium dioxide: 1.5 parts; paraffin oil: 1.5 parts; zinc oxide: 1.5 parts ; Microcrystalline paraffin: 1.0 parts; Stearic acid: 0.5 parts; White carbon black: 2 parts; Ultrafine talcum powder: 15 parts; Modified calcined clay: 16 parts;

[0029] The production includes the following steps in sequence: First, mix ethylene-propylene rubber 2470, ethylene-propylene rubber 4044 and high-pressure polyethylene; then add titanium dioxide, paraffin oil, zinc oxide, microcrystalline paraffin, stearic acid, and white carbon black in sequence , superfine talcum powder and modified calcined clay for 12 minutes to make each c...

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Abstract

The invention discloses a hard EPR (ethylene propylene rubber) insulated power cable for ships and oceans and a manufacturing method thereof. The periphery of a conductor is covered by a hard EPR insulate layer to form an insulated core wire; three insulated core wires are stranded mutually to form a cable, the periphery of the cable is extruded and wrapped by an LSOH (low smoke zero halogen) inside liner, the periphery of the LSOH inside liner is wrapped by a non-hygroscopicity isolation belt in a winding manner, the periphery of the non-hygroscopicity isolation belt is covered by a metal armor layer, the periphery of the metal armor layer is provided with a longitudinally-wrapped polyester film belt, and the periphery of the longitudinally-wrapped polyester film belt is extruded and wrapped by an LSOH outer sheath. The power cable has the advantages of good LSOH property, mechanical performance, insulation performance and ageing resistance; and the metal armor layer is internally provided with a belt, thus effectively avoiding an armor wire termination from penetrating into the inside layer and avoiding that the outer sheath material is adhered to the inside layer integrally dueto the penetration of the fused outer sheath material into weaving holes of the metal armor layer in the process of extruding and wrapping the outer sheath material at the same time, thereby being beneficial to the peeling of the outer sheath in construction.

Description

technical field [0001] The invention relates to a power cable, in particular to a hard ethylene-propylene rubber insulated power cable for ships and oceans; the invention also relates to a manufacturing method for a hard ethylene-propylene rubber insulated power cable for ships and oceans. Background technique [0002] Due to the particularity of the operating environment of ships and marine engineering equipment and the use of high-power power equipment, higher and higher technical performance requirements are put forward for the matching power cables. The most typical requirements are soft, low-smoke and halogen-free, It has good water repellency and corrosion resistance, high strength, good tensile performance, and is not easy to age. Due to the narrow space of the ship, etc., the power cable needs to be small in size and light in weight. [0003] In addition, the current power cables for ships and oceans are mostly insulated with ordinary ethylene-propylene rubber. Ordi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B9/00H01B9/02H01B13/00
Inventor 李永江陆云春
Owner 嘉兴君宏汽车配件有限公司