Elevator cable manufacturing method

By setting water barrier belts and gold mica belts on the conductors of the elevator cables and using halogen-free low-smoke crosslinked polyolefins as the insulating layer, the problem of insufficient fire resistance and waterproofness of the elevator cables is solved, and the water barrier, flame retardant and low-smoke characteristics of the cables are achieved, ensuring higher safety and environmental protection.

CN119724765APending Publication Date: 2025-03-28GUANGZHOU NANYANG CABLE
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Patent Information

Application Number
CN202411907450.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The existing elevator cables have poor fire resistance and water resistance, are prone to damage, and release harmful or high smoke gases during fire, threatening human safety.

Method used

An elevator cable manufacturing method is adopted, by sequentially wrapping the water barrier belt and the gold mica belt on the conductor, and extruding halogen-free low-smoke crosslinked polyolefins as an insulating layer using a pressurized die to form a wire core and a cable core. At the same time, a communication protective layer and an outer sheath are provided outside the cable core to ensure the water, flame retardant and low smoke characteristics of the cable.

Benefits of technology

The elevator cables made of good fire resistance and waterproofness, will not release harmful or high smoke gases during fire, making them more environmentally friendly and safe.

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Abstract

The invention specifically discloses an elevator cable manufacturing method, and relates to the technical field of electric wires and cables.The elevator cable manufacturing method comprises the steps that a first conductor is sequentially wrapped with a first water-blocking tape and a first phlogopite tape, and halogen-free low-smoke cross-linked polyolefin is extruded on the first phlogopite tape through a pressurization type mold to serve as a first insulating layer; forming a first wire core; twisting the plurality of first wire cores to form a first cable core; a second water-blocking tape and a second phlogopite tape are sequentially arranged on the second conductor in a wrapping mode, halogen-free low-smoke cross-linked polyolefin is extruded on the second phlogopite tape through the pressurization type mold to serve as a second insulating layer, and a second wire core is formed; twisting a plurality of second wire cores to form a second cable core; a communication protection layer is arranged on the second cable core to form a communication cable; according to the elevator cable manufacturing method provided by the embodiment of the invention, the manufactured elevator cable has good fire resistance and water resistance, and does not burn to release harmful or high-smoke-intensity gas.
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