Multi-core-layer inorganic mineral insulation flexible fireproof cable and preparation method thereof
A technology of inorganic minerals and fireproof cables, which is applied in the manufacture of insulating cables, inorganic insulators, and cables/conductors, and can solve problems such as low efficiency, long mixing time, and inconvenient discharge.
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Embodiment 1
[0105]S1. Remove impurities on the metal surface, straighten after drying, wire drawing and annealing to make conductive wire core,
[0106] A plurality of conductive wire cores are stranded to make a cable core;
[0107] S2. Wrapping an inorganic mineral insulating layer outside the cable core, setting a filling layer between multiple cable cores, and then continuing to coat the outer layer with an inorganic mineral tape;
[0108] S3. Extrude the aluminum alloy tube through the aluminum tube extrusion machine, and coat the aluminum alloy tube sleeve on the inorganic mineral tape to form a semi-finished cable;
[0109] S4. Wrap an oxygen barrier layer on the outer side of the semi-finished cable, and finally extrude a flame-retardant outer sheath on the outer side to make a multi-core inorganic mineral insulated flexible fireproof cable.
[0110] Wherein, the preparation steps of the inorganic mineral insulating layer used in step S2 are as follows:
[0111] (1) In terms of ...
Embodiment 2
[0129] S1. Remove impurities on the metal surface, straighten after drying, wire drawing and annealing to make conductive wire core,
[0130] A plurality of conductive wire cores are stranded to make a cable core;
[0131] S2. Wrapping an inorganic mineral insulating layer outside the cable core, setting a filling layer between multiple cable cores, and then continuing to coat the outer layer with an inorganic mineral tape;
[0132] S3. Extrude the aluminum alloy tube through the aluminum tube extrusion machine, and coat the aluminum alloy tube sleeve on the inorganic mineral tape to form a semi-finished cable;
[0133] S4. Wrap an oxygen barrier layer on the outer side of the semi-finished cable, and finally extrude a flame-retardant outer sheath on the outer side to make a multi-core inorganic mineral insulated flexible fireproof cable.
[0134] Wherein, the preparation steps of the inorganic mineral insulating layer used in step S2 are as follows:
[0135] (1) In terms of...
Embodiment 3
[0153] S1. Remove impurities on the metal surface, straighten after drying, wire drawing and annealing to make conductive wire core,
[0154] A plurality of conductive wire cores are stranded to make a cable core;
[0155] S2. Wrapping an inorganic mineral insulating layer outside the cable core, setting a filling layer between multiple cable cores, and then continuing to coat the outer layer with an inorganic mineral tape;
[0156] S3. Extrude the aluminum alloy tube through the aluminum tube extrusion machine, and coat the aluminum alloy tube sleeve on the inorganic mineral tape to form a semi-finished cable;
[0157] S4. Wrap an oxygen barrier layer on the outer side of the semi-finished cable, and finally extrude a flame-retardant outer sheath on the outer side to make a multi-core inorganic mineral insulated flexible fireproof cable.
[0158] Wherein, the preparation steps of the inorganic mineral insulating layer used in step S2 are as follows:
[0159] (1) In terms of...
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