What are the braid structures for bending resistant drag chain cables?

1. Fiber woven layer. The fiber braided layer is relatively lightweight and can protect the insulation layer from light, heat, humidity, low temperatures, acid and alkali gases, as well as external mechanical damage. For bending resistant drag chain cables, the fiber braided layer is often located in the middle of the protective layer to enhance the tear resistance of the protective layer. For example, adding a woven layer of fibers such as cotton yarn and hemp to the middle of a rubber or plastic protective layer to improve the strength of the protective layer.

2. Metal braid layer. The metal used in the metal braid layer is mainly copper wire and steel wire. The steel wire braided layer is mainly used for mechanical protection, and is commonly used in some demanding heavy machinery and detection fields. It can withstand large longitudinal tensile forces, and also has good performance of magnetic field shielding. Copper wire braiding can prevent electromagnetic interference, play a safety protection shielding role in eliminating cable surface potential and induced electricity.   In the production process of cables, another important step is to paint the braided layer for quick identification during construction and operation. From the material of the braided layer, glass fiber and aramid are commonly used as braided materials for bending resistant drag chain cables. Glass fiber has good thermal stability, a softening temperature of 700 ℃, and an average thickness of 0.002-0.035 inches. The decomposition temperature of aramid fiber is about 600 ℃, and the average thickness is slightly smaller than that of glass fiber. Glass fibers are easily colored and have a bright and bright appearance, with their natural color being natural white. Aramid is difficult to make into bright white, with only bright colors. Its prominent characteristics are abrasion resistance and shear resistance, and its strength is several times greater than glass fiber. Therefore, it becomes a material for many cable outer protective layers.