91results about How to "High mechanical flexibility" patented technology

A bending-resistant and tensile elevator or lift travelling flexible fireproof cable comprises multi-strand soft copper wire conductors formed by twisting multiple strands of soft copper wires. A first synthetic mica tape layer is wound on the surface of each multi-strand soft copper wire conductor, and a ceramic silicone rubber insulation layer is arranged on the surface of each first synthetic mica tape layer through extrusion to form a fireproof insulated wire core. A plurality of fireproof insulated wire cores are stranded together, and a third refractory layer and a second synthetic mica tape layer wrap the stranded fireproof insulated wire cores to form a cable core. A plurality of cable cores are arranged in parallel to form a cable core group, multi-strand flexible steel wires are arranged between the cable groups, each multi-strand flexible steel wire is coated with a second refractory layer, and the gaps between the cable cores and between the cable cores and the multi-strand flexible steel wires coated with the second refractory layers are filled with glass fibers, so as to form a multi-group cable core. A first refractory layer and a third synthetic mica tape layer are arranged in a winding way, a metal welding corrugated armor layer is arranged in a longitudinal wrapping way and a ceramic silicone rubber outer sheath is arranged in an extrusion way outside the multi-group cable core in sequence.