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A high-shielding high-temperature cable and its manufacturing method
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A manufacturing method and shielding technology, applied in the high-shielding high-temperature cable and its manufacturing field, can solve the problems of low temperature resistance, short service life, poor insulation, etc., achieve high temperature and aging resistance performance improvement, overall structural design is reasonable, The effect of high toughness and cushioning capacity
Active Publication Date: 2018-04-20
JIANGSU HENGHUI ELECTRIC CO LTD
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[0004] Among the relevant patents that have been applied in China, the patent "A Ceramic Insulated High Temperature Cable" (application number: 201520062210.3, publication date: 2015-07-08) discloses a ceramic layer coated on the surface of the conductor core material. Insulation method, but due to the continuous plating adopted, the ceramic film is very brittle, and the ceramic layer is easily broken after bending, and it is easy to damage the conductor core material and damage the insulating surface material, so that the service life of the final molded product is short, and it is also easy to age and Corrosion, on the other hand, because other materials are not selected high-temperature resistant high-insulation materials, so other parts outside the ceramic part are still not high-temperature resistant, and the insulation is also poor. Because there is no overall design and reasonable combination, the ceramic insulation of the invention is resistant The tensile strength, yield strength, and elongation of high-temperature cables are equivalent to those of ordinary cables, and the comprehensive mechanical properties are not good
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Embodiment 1
[0040] A high-shielding high-temperature cable, which is respectively provided with a surface sheath 1, a hollow layer 2, an aluminum wire mesh layer 3, a support layer 4, an inner lining 5, an insulating layer 6, and a conductor 7 from the outside and the inside; the surface sheath 1 adopts Made of heat vulcanized silicone rubber; supporting layer 4 is made of alumina ceramic fiber; lining 5 is made of ENB EPDM rubber; insulating layer 6 is made of epoxy resin and glass fiber in a weight ratio of 9:1 made of material;
[0041] The manufacturing method of the high-shielding high-temperature cable comprises the following steps:
[0042] 1) Selection and preparation of raw materials
[0043] ① The raw material of the surface sheath 1 is heat vulcanized silicone rubber, and the selection standard is: its volume resistivity is not less than 2×10 15 Ω·cm, dielectric strength not less than 200kV / cm, long-term working temperature range -55~180℃;
[0044] ② The aluminum wire mesh l...
Embodiment 2
[0071] A high-shielding high-temperature cable, which is respectively provided with a surface sheath 1, a hollow layer 2, an aluminum wire mesh layer 3, a support layer 4, an inner lining 5, an insulating layer 6, and a conductor 7 from the outside and the inside; the surface sheath 1 adopts Made of heat vulcanized silicone rubber; supporting layer 4 is made of alumina ceramic fiber; lining 5 is made of ENB EPDM rubber; insulating layer 6 is made of epoxy resin and glass fiber in a weight ratio of 9:1 made of material;
[0072] The manufacturing method of the high-shielding high-temperature cable comprises the following steps:
[0073] 1) Selection and preparation of raw materials
[0074] ① The raw material of the surface sheath 1 is heat vulcanized silicone rubber, and the selection standard is: its volume resistivity is not less than 2×10 15 Ω·cm, dielectric strength not less than 200kV / cm, long-term working temperature range -55~180℃;
[0075] ② The aluminum wire mesh l...
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Abstract
The invention discloses a high-shielding-property high-temperature cable and a manufacturing method thereof. The high-shielding-property high-temperature cable comprises a surface-layer sheath, a hollow layer, a shielding layer, a supporting layer, a lining, an insulating layer and a conductor, and can bear a working temperature in a range from -70 DEG C to 200 DEG C for long time; a shielding grade is grade A at least and the high-shielding-property high-temperature cable can resist a thunder and lightning abrupt slope value 5000kV / s; the yield strength is not lower than 80N / mm<2>, the elongation percentage is not lower than 25 percent and the tensile strength is not lower than 100N / mm<2>; ceramic fibers manufactured by a specific method are woven into a net pipe shape and are used as a supporting layer; design of the hollow layer and the shielding layer is added and a high-temperature-resisting and anti-ageing material is used as a base material, so that excellent high-temperature-resisting and insulating property and electromagnetic shielding property are obtained; the high-shielding-property high-temperature cable disclosed by the invention has a good comprehensive mechanical property, high insulativity, high temperature resistance, ageing resistance, long service life and wide application range.
Description
technical field [0001] The invention relates to the field of electronic components, in particular to a high-shielding high-temperature cable and a manufacturing method thereof. Background technique [0002] A cable is usually a rope-like cable twisted by several or groups of conductors (at least two in each group). Each group of conductors is insulated from each other and is often twisted around a center. Highly insulating overlay. The cable has the characteristics of internal electrification and external insulation. [0003] The insulating layer is to evenly and hermetically wrap a layer of non-conductive material around the cable conductor, such as: resin, plastic, silicone rubber, PVC, etc., but these materials are limited by their essential properties, and their heat resistance and insulation properties are compared with those of ceramics. Weaker than the base material. [0004] Among the relevant patents that have been applied in China, the patent "A Ceramic Insulate...
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Application Information
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