Published: 2025-08-13 10:28:24
The short pitch stranding process optimizes the internal structure of the cable, allowing drag chain cables to have a more even stress distribution when bending, reducing the risk of conductor breakage, thereby reshaping its flexibility characteristics. The specific manifestations are as follows:
Reduce stress concentration: In drag chain cables, the conductors are prone to stress concentration during frequent bending, which can lead to breakage. The short-pitch stranding process allows the conductors to be twisted more tightly. A smaller pitch means an increased number of twists per unit length, so when the cable bends, the stress can be more evenly distributed to each strand of copper wire rather than being concentrated at a single point or section, thereby reducing stress concentration and improving the cable's flexibility and fatigue resistance.
Improving bending performance: This process makes the internal structure of the cable more compact, reducing the gaps between the cores. When the cable bends, the cores can deform in better coordination, reducing friction and displacement between them, lowering bending resistance, allowing the cable to bend flexibly at a smaller bending radius, and making it less prone to deformation, twisting, and other issues, thereby extending its service life.
Enhancing structural stability: The core wires, twisted with short pitch around a high-strength central tensile filler rope, are formed into a cable, which makes the cable structure more stable. When subjected to external forces such as stretching and twisting, it can better maintain the integrity of the internal structure, reduce the risk of wire core loosening and displacement, and thus maintain the cable's flexibility, allowing it to function normally even in complex dragging environments.
Optimizing signal transmission: For drag chain cables that transmit signals, the short-pitch stranding process helps maintain the stability of the cable structure, reducing the impact of mechanical stresses such as bending and stretching on the shield layer. This allows the shielding layer to function more effectively, ensuring the stability and reliability of signal transmission, and indirectly improving the overall performance of the cable in dynamic environments, allowing its flexibility advantages to be better realized.