Introduction:
In the equipment unit needs to move back and forth occasions, in order to prevent the cable entanglement, wear and tear, pull off, hanging and scattered, often put the cable into the cable drag chain, the cable to form a protective, and the cable can be realized with the drag chain to move back and forth, this can be followed to move back and forth drag chain is not easy to wear a highly flexible special cable will be called a towing chain cable, usually can also be referred to as the trailing cable, tank chain cable.
Trailer chain cable composition:
1. tensile center
In the center of the cable according to the number of cores and the number of each core crosses the region of the space as far as possible, there is a real center line filling (not as a rule, with some filler or waste plastic made of garbage core filling) This method can effectively protect the stranded wire structure to prevent the stranded wire from straying into the center of the cable. center area of the cable.
KYF12J4ZT-NC drag chain
2. Conductor structure
Cable should choose the most flexible conductor, in general, the finer the conductor, the better the flexibility of the cable, but the conductor is too fine, it will produce the phenomenon of cable winding. A series of long-term experiments to provide the best diameter of a single conductor, length and section direction of the shielding combination, it has the best tensile strength.
3. Core Insulation
The insulation inside the cable must not stick to each other. And the insulation also needs to support a single strand of wire per strand. Therefore, only high-pressure molded PVC or TPE materials can be used in drag chains with millions of meters of cable in the application process to confirm his reliability.
4. Stranded wires
The stranded wire structure must be wound around a stable tensile center with an optimal intersection pitch. However, due to the use of insulating materials, the strand structure should be designed for motion, starting with 12 core wires, which should be stranded in bundles.
5. The inner jacket is an extruded, armor-type inner jacket that replaces cheap wool materials, fillers, or accessory fillers. This method ensures that the stranded wire structure will not come apart.
6. The shield is tightly braided outside the inner jacket with optimized braiding angles. Loose braid reduces the protective ability of the EMC and the shield fails quickly due to breakage of the shield. The tightly woven shield is also torsionally resistant.
7. Sheaths made from different modified materials have different functions, including UV resistance, low temperature resistance, oil resistance, and cost optimization. However, all of them have one thing in common: they are highly wear-resistant and do not adhere to anything. The sheath must be highly flexible but also supportive, and of course it should be autoclaved.