How to distinguish flexible cable from ordinary cable?

Towing cable, towing cable, tank chain cable, moving cable is another name for towing cable, which is a highly flexible cable that can be used for reciprocating motion. It is usually used for cable towing chain inside the use, so called towing chain cable. On the one hand, the cable tow chain can form a protective layer for the cable, on the other hand, it can realize the reciprocating motion of the cable following the tow chain. Flexible towing cable is preferred for small bending radius and mechanical equipment that needs to be moved back and forth.

When choosing a mobile flexible towing cable, one may misunderstand that it can be used as a flexible towing cable as long as the cable is soft enough. Therefore, silicone cable and flexible cable RV, RVV, RVVP, rvvsp, etc., as the tow chain cable access equipment. But, as a towing cable, it's not enough just to stay soft. It also requires a degree of resilience. In the process of mobile use, the cable should be able to withstand certain stress, tensile resistance, wear resistance, small bending radius, torsion resistance, etc., and it should have good mechanical properties. When the tow chain drive cable moves back and forth frequently, the silicone cable and flexible cable cannot meet these requirements and cannot effectively protect the core wire, which is easy to cause wear and break the core, resulting in the normal operation of the machine.

Mobile cable manufacturers take us to see the difference between flexible drag chain cable and ordinary wire cable.

① conductor structure

Tow - chain cable adopts 6 conductors and multi - strand superfine stranded oxygen - free copper wire. In general, the thinner the conductor, the more flexible the cable. However, if the conductor is too thin, cable entanglement can occur. The conductor of the tow chain cable should be selected according to the specific operating environment and function to ensure the cable conductor

② Flexibility and core insulation

The insulation material of the tow chain cable is resistant to adhesion, high strength and good toughness. The insulation layer is not only the insulating material layer between the heating conductor or between the heating conductor and the grounding shield, but also needs to support each stranded conductor. The cable has uniform insulation thickness and high concentricity

③ Hinge mode

The stranded structure is wound around a stable tensile center with good stranded pitch. The cores are usually twisted in layers, bunched, and twisted again

④ Stretching center

Depending on the number of cores and the space in which each core (usually nylon or Kevlar) crosses the area, the center of the cable may be filled with a centerline. Packing can effectively protect stranded wire structure, prevent stranded wire from floating to the center area of the cable, and improve the tensile strength of the cable. Different models and specifications of the tow chain cable will vary

⑤ Inner sheath

Armored type extruded inner sheathing replaces cheap wool material, stuffing or auxiliary stuffing. On the one hand, it can protect the core structure. On the other hand, the tow chain after the second extrusion has a fuller appearance

⑥ Shielding

The shielding layer is tightly woven outside the inner sheath, and the weaving Angle is optimized. The tight braided tape improves the EMC's protection capability and prevents shield failure due to shield breakage. At the same time, the dense shielding layer has anti-torsional properties.

⑦ Outer sheath

The outer sheath must have high flexibility and support function, and adopt high pressure molding. Special PVC and polyurethane are usually used. The outer sheathing made of different modified materials has different functions, including UV resistance, low temperature resistance, oil resistance and cost optimization.