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Submarine degaussing cable and preparation method thereof

A technology for demagnetizing cables and submarines, used in cable/conductor manufacturing, insulated cables, cables, etc., can solve the problem that the properties of steel that are easily magnetized cannot be changed.

Active Publication Date: 2021-02-02
安徽龙庵电缆集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Ships or submarines made of modern steel will be magnetized if they are in the earth's magnetic field for a long time, and the two poles of the earth's magnetic field cannot be changed, and the nature of steel's easy magnetization cannot be changed and eliminated by itself

Method used

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  • Submarine degaussing cable and preparation method thereof
  • Submarine degaussing cable and preparation method thereof
  • Submarine degaussing cable and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] A submarine degaussing cable, comprising a tinned copper conductor 1, a first sealing layer 2, an insulating layer 3, a filling strip 4, a second sealing layer 5, an inner sheath 6 and an outer sheath 7; the first sealing layer 2 and the second The second sealing layer 5 is sealant;

[0038] Wherein, the sealant is prepared through the following steps:

[0039] Step S11: Add polyether polyol into the reaction kettle, set the temperature at 100°C and vacuum at 0.1 MPa, dehydrate for 1 hour, then lower the temperature to 80°C, add 30% toluene diisocyanate, set the temperature at 85 ℃, react at normal pressure for 50min, then lower the temperature to 80℃, add the remaining 70% toluene diisocyanate, set the temperature at 85℃, react at normal pressure for 3h, then add dioctyl phthalate and mix well After that, prepolymer A is obtained;

[0040] Step S12, add lignin and deionized water into the three-necked flask, adjust the pH of the reaction solution in the three-necked ...

Embodiment 2

[0055] A submarine degaussing cable, comprising a tinned copper conductor 1, a first sealing layer 2, an insulating layer 3, a filling strip 4, a second sealing layer 5, an inner sheath 6 and an outer sheath 7; the first sealing layer 2 and the second The second sealing layer 5 is sealant;

[0056] Wherein, the sealant is prepared through the following steps:

[0057] Step S11: Add polyether polyol into the reaction kettle, set the temperature at 110°C and vacuum at 0.1 MPa, dehydrate for 1 hour, then lower the temperature to 80°C, add 30% toluene diisocyanate, set the temperature at 85 ℃, react at normal pressure for 505min, then lower the temperature to 80℃, add the remaining 70% toluene diisocyanate, set the temperature at 85℃, react at normal pressure for 3h, then add dioctyl phthalate and mix well After that, prepolymer A is obtained;

[0058] Step S12, add lignin and deionized water into the three-necked flask, adjust the pH of the reaction solution in the three-necked...

Embodiment 3

[0073] A submarine degaussing cable, comprising a tinned copper conductor 1, a first sealing layer 2, an insulating layer 3, a filling strip 4, a second sealing layer 5, an inner sheath 6 and an outer sheath 7; the first sealing layer 2 and the second The second sealing layer 5 is sealant;

[0074] Wherein, the sealant is prepared through the following steps:

[0075] Step S11: Add polyether polyol into the reaction kettle, set the temperature at 120°C and vacuum at 0.1 MPa, dehydrate for 1 hour, then lower the temperature to 80°C, add 35% toluene diisocyanate, set the temperature at 85 ℃, react under normal pressure for 60min, then lower the temperature to 80℃, add the remaining 65% toluene diisocyanate, set the temperature at 85℃, react under normal pressure for 3h, then add dioctyl phthalate and mix well After that, prepolymer A is obtained;

[0076] Step S12, add lignin and deionized water into the three-necked flask, adjust the pH value of the reaction solution in the t...

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Abstract

The invention discloses a submarine degaussing cable and a preparation method thereof. The outer surface of a tinned copper conductor is coated with a sealant to form a first sealing layer, the outersurface of the first sealing layer is coated with an insulating layer, and the tinned copper conductor, the first sealing layer and the insulating layer form a cable core; the three cable cores areuniformly arranged in a triangular shape, the centers of the three cable cores are filled with filling strips, the outer layers of the three cable cores are coated with sealant to form a second sealing layer, the outer surface of the second sealing layer is coated with an inner sheath, and the outer surface of the inner sheath is coated with an outer sheath. The preparation method comprises the following steps of 1, coating a tinned copper conductor with a sealant to form a first sealing layer, and coating the outer surface of the first sealing layer with an insulating layer to prepare a cable core, and 2, uniformly arranging the three cable cores in a triangular shape, filling the centers of the three cable cores with filling strips, coating the outer layers of the three cable cores with a sealant to form a second sealing layer, coating the outer surface of the second sealing layer with an inner sheath, and coating the outer surface of the inner sheath with an outer sheath.

Description

technical field [0001] The invention belongs to the technical field of cable preparation, and in particular relates to a submarine degaussing cable and a preparation method thereof. Background technique [0002] Ships or submarines made of modern steel will be magnetized if they are in the earth's magnetic field for a long time, and the two poles of the earth's magnetic field cannot be changed, and the nature of steel's easy magnetization cannot be changed and eliminated by itself. As long as a ship sails on the ocean, it will inevitably generate a magnetic field. If this magnetic field is not eliminated, the magnetized ship will be easily attacked by magnetic mines, torpedoes and other weapons, or become the target of magnetic detection equipment. The ship itself has two magnetic fields, one is the induction magnetic field, which is offset by the self-degaussing system on the ship; the other is the fixed magnetic field, which needs to be periodically energized and eliminate...

Claims

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Application Information

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IPC IPC(8): H01B7/282H01B7/17H01B7/28H01B13/00C09J175/08C08G18/76C08G18/48C08G18/10C08G18/64C08L23/34C08L23/06C08L9/06C08K13/06C08K7/26C08K5/12C08K5/098C08K5/053C08K9/12C08K5/09
CPCH01B7/2825H01B7/17H01B7/2806H01B13/00C09J175/08C08G18/7614C08G18/48C08G18/10C08G18/6492C08L23/34C08L2205/035C08L2203/20C08G18/64C08L23/06C08L9/06C08K13/06C08K7/26C08K5/12C08K5/098C08K5/053C08K9/12C08K5/09
Inventor 吉云星魏善恒王飞赵海涛周美彪李加俊夏尧天
Owner 安徽龙庵电缆集团有限公司
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