Mineral insulation signal cable and method for manufacturing the same

A signal cable, mineral insulation technology, used in insulated cables, cable/conductor manufacturing, communication cables, etc., can solve problems such as loss of life and property, and achieve the effect of improving moisture absorption, scientific and reasonable structure, and good performance.

Inactive Publication Date: 2008-03-26
BAOSHENG SCI & TECH INNOVATION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Unfortunately, these organic materials will still release harmful gases and produce thick smoke more or less during the combustion process, and it is difficult to guarantee normal work in some large-scale fires, thus causing damage to people's lives and property loss

Method used

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  • Mineral insulation signal cable and method for manufacturing the same

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Embodiment Construction

[0019] After the copper strip is cleaned and dried, the copper strip is longitudinally wrapped into a tube shape, and the edge of the copper strip is argon-arc-welded under the protection of argon gas to form a seamless copper sheath 3 at a welding speed of 2m / min. The high-purity magnesium oxide powder is prepared by calcining the magnesium oxide powder at a high temperature to remove impurities and evenly adding 0.06% to 0.08% of silicon oil (polydimethylsiloxane) by weight. The copper wire core stranded by copper wire is used as the conductor 1, and the stranded copper wire core conductor 1 enters the central part of the seamless copper sheath 3 through a fixed pipe (flowing into the centering pipe). A filling machine is used to fill high-purity magnesium oxide powder insulation 2 in the gap around the twisted copper core conductor 1 in the seamless copper sheath 3 to make a semi-finished cable. The outlet of the pipe is set under the weld, and the magnesium oxide powder is...

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Abstract

This invention relates to a mineral signal insulation cable including a conductor, an insulator and a jacket characterizing that all of the three are inorganic objects, the conductor is a core of twist copper wires, the insulator is pure MgO powder added with silicon oil and the jacket is a copper jacket formed by continuously welding and the MgO powder is set in the slot between the conductor and the jacket, the process of which is simple and advanced, the outer diameter is small and it's not necessary to protect it with pipes, good signal and phone communication can be kept in fire since it's smokeless and nonpoisonous.

Description

technical field [0001] The invention relates to a structure of a mineral insulated signal cable and a manufacturing process thereof, belonging to the technical field of cables. Background technique [0002] With the development of society, the fire-resistant properties of cables are becoming more and more important. Traditional signal cables use polyvinyl chloride as insulation materials, and polyvinyl chloride or polyolefin as sheath materials. The entire cable does not have any fire-resistant structure. Once A fire can easily cause great damage to human life and property. As people have carried out extensive and in-depth research on the flame-retardant and fire-resistant properties of organic insulation or sheath materials, many signal cable products with superior performance have been successfully developed. Unfortunately, these organic materials will still release harmful gases and produce thick smoke more or less during the combustion process, and it is difficult to gu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B11/00H01B7/17H01B3/10H01B13/00
Inventor 房权生冯志骏董春
Owner BAOSHENG SCI & TECH INNOVATION
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