The internal structure of drag chain cables is mainly divided into layered cables and split cables:
Split bundling and cabling: The core wires of the drag chain cable are first twisted into bundles individually, and the core wires are twisted into bundles around a center made of tensile material. Due to the multiple bundling process, inside the cable, the core wires are changed several times to bend the cable. The inner diameter and outer diameter of the cable are balanced with each other, and the tension and pressure around the highly tensioned center line are balanced with each other, so that the internal structure of the cable has reliable stability, so the drag chain cable can also remain stable under the greatest bending force.
The internal structure of the split-cable cable is compact, which basically solves the problem of layered cables, but the change of the process increases the production cost.
Layered cable: Most of the core wires of the drag chain cable are tightly twisted into several layers around the center line, and the outside is wrapped with an extruded sheath. When the cable is bent and stressed, the inner diameter of the cable is compressed and the outer diameter is compressed. pull.
The layered cable is the so-called low-cost cable suitable for drag chains. When the cable is bent and stressed, the inner diameter of the cable is compressed and the outer diameter is pulled. At first the cable worked due to the elasticity of the material, but after a while, the material was permanently deformed due to excessive stress on the material. After this special extrusion process, the core wires of the cable form different areas of compression and tension, and the spinning phenomenon occurs. In most cases, the cable will break quickly.
For drag chain cables, their structures and production techniques may not be the same, so their bending radius and bending resistance may not be the same. It is particularly important to pay attention to the internal structure of the cable when selecting drag chain cables.
