What are the causes of defective cables?

2022/05/13

Author: Noyafa–POE checker

What are the causes of defective cables? Cable fault tester manufacturers Cables and wires are currently widely used in home life. As we all know, these are indispensable now, so how to use them more safely? What are the reasons for the defects in the cable and cable? Cables and wires are widely used in home life at present. As we all know, these are indispensable now, so how to use them more safely? In the production process of cables and other products, cable fault tester manufacturers often have some large or small appearance defects, such as some cable factory products with uneven surface and clinker particles (pre-vulcanized rubber particles) Or impurities, scratches, abrasions, dents on the surface, hemp marks, etc.

The following are five common factors that cause appearance defects in rubber sheathed cables: 1. The length of the line carried by the mold sleeve is too long or too short, the die opening is not smooth and the hole diameter is too large; The temperature of the mouth or the body is low; the plasticity of the rubber is small, etc., which may cause the surface of the rubber sheathed cable to be uneven. 2. The rubber used is not clean and contains impurities; the time control is short during scorch, and the temperature of the body, head or die is too high; the rubber in the head does not flow smoothly, and the rubber stays Dead angle; the screw is not smooth, viscose, etc. may cause clinker particles (pre-vulcanized rubber particles) or impurities on the surface of the rubber sheathed cable. 3. The surface of the die sleeve is not very smooth and has no chamfer; it is thought that sometimes impurities or cooked rubber particles will block the die opening; dragging the tube in the vulcanization tube is scratched; the diameter of the rubber gasket at the outlet of the vulcanization tube is too small, etc. Resulting in scratches and abrasions on the surface of the rubber sheathed cable.

4. The diameter of the die sleeve is too large; the space between the outer strands and the monofilaments of the conductive wire core is too large, and the outer diameter of the cable core is not uniform; the rubber material has small plasticity and poor viscosity; there are impurities in the rubber; Low pressure, etc., may cause the surface of the rubber sheathed cable to dent. 5. The diameter of the die sleeve is too small, the rubber extrusion is insufficient, and the gap between the cores will not be filled; the conductive core or cable core jumper; the short distance between the die, etc. may cause the surface of the rubber sheathed cable. Cable fault tester manufacturer Shenzhen Noyafa Electronic Technology Co., Ltd.

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