Three-coaxial mineral insulated cable and manufacturing method thereof

A mineral insulated cable, triaxial technology, applied in the direction of insulated cable, coaxial cable manufacturing, cable/conductor manufacturing, etc., can solve the problems of signal influence, low mechanical strength, material aging, etc., to achieve less signal interference, use Wide range and long life effect

Active Publication Date: 2010-05-12
久盛电气股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to structural defects, after the existing coaxial cable is used for a period of time, the material will age, the insulation resistance will become smaller, and the leakage current of the insulating medium will increase; the outer sheath is made of polyethylene material, which h

Method used

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  • Three-coaxial mineral insulated cable and manufacturing method thereof
  • Three-coaxial mineral insulated cable and manufacturing method thereof
  • Three-coaxial mineral insulated cable and manufacturing method thereof

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0031] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to this embodiment without creative contribution as required after reading this specification, but as long as they are within the rights of the present invention All claims are protected by patent law.

[0032] like figure 1 As shown, the triaxial mineral insulated cable includes an inner conductor layer 1, an inner insulating dielectric layer 2, an inner shielding layer 3, an outer insulating dielectric layer 4, an outer shielding layer 5 and a sheath layer 6 from the inside to the outside. The dielectric layer 2 and the outer insulating dielectric layer 4 are magnesium oxide. The diameter of the cable conductor is 0.6mm, the thickness of the inner insulating layer 2 is 0.35mm,...

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Abstract

The invention relates to a three-coaxial mineral insulated cable which is mainly applied to the field of the transmission of a high-frequency signal in an occasion with high environmental temperature and high radiation, such as the communication fields of metallurgy, medical treatment, aerospace, military affairs and the like. The three-coaxial mineral insulated cable comprises an internal conductor layer, an internal insulation dielectric layer, an internal shielding layer, an external insulation dielectric layer, an external shielding layer and a sheath layer sequentially from the inside to the outside. The three-coaxial mineral insulated cable is characterized in that the internal insulation dielectric layer and/or the external insulation dielectric layer are magnesia, alumina or silicon dioxide. Compared with the prior coaxial cable, the three-coaxial mineral insulated cable has the advantages of longer service life and more extensive use range.

Description

technical field [0001] The invention relates to a triaxial mineral insulated cable, which is mainly used in the field of high-frequency signal transmission in high ambient temperature and high radiation occasions, such as metallurgy, medical treatment, aerospace, military and other communication fields. Background technique [0002] The existing coaxial cable consists of four parts: inner conductor, insulating medium, outer conductor (inner shielding layer) and outer sheath (outer shielding layer). The inner conductor is usually composed of a solid conductor; the insulating medium can be polyethylene, polypropylene, polyvinyl chloride (PVC) and fluoroplastics, etc. The commonly used insulating medium is polyethylene with low loss and good process performance. The outer conductor of the coaxial cable has a double function, it is not only a wire in the transmission circuit, but also has a shielding effect. The outer sheath is usually polyethylene. Due to structural defects, ...

Claims

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Application Information

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IPC IPC(8): H01B11/18H01B3/10H01B7/20H01B13/016H01B13/06H01B13/22
Inventor 罗才谟姚坤方
Owner 久盛电气股份有限公司
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