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Five Common Causes Of Appearance Defects In Rubber Sheath Cable
Mar 24, 2018

  In the production of rubber sheath cable, there are often appearance defects, such as the surface is not smooth, the surface has clinker particles (early vulcanized rubber particles) or impurities, wire and cable surface scratches, abrasions, surface subsidence, the surface has hemp pattern and so on.


The following is the cable network collected in the network five kinds of common causes of rubber sheath cable appearance defects, for the vast number of rubber cable manufacturers reference:


First, the die sleeve bearing line is too long or too short, the die is not smooth and the aperture is too large, the nose, die or fuselage temperature is low, the rubber is small plastic and so on may cause the rubber sheath cable surface is not smooth.


Second, the supply of rubber is not clean, containing impurities, rubber coke burning time is too short; extrusion rubber body, nose or die temperature is too high, the rubber flow in the head, there is a dead end of oak, the screw is not smooth, viscose, etc. may lead to the rubber sheath cable surface clinker particles (early vulcanized rubber particles) or impurities.


Third, the die sleeve is not smooth, no chamfer, impurities or cooked gum particles through the mold mouth, in the vulcanization tube abrasion, tube outlet sealing rubber washer hole diameter is likely to cause rubber sheath cable surface scratches, abrasions.


Iv. the aperture of the die sleeve is too large, the outer strand of the conductive core is large, the gap between the filaments is too big, the diameter of the core is not uniform, the rubber is small, the viscosity is poor, the rubber has impurities, the distance between the die and the pressure is small, so it is possible that the The diameter of the die sleeve is too small, the rubber extrusion is insufficient, the core gap is filled, the conductive wire core or the cable core jumper, the short distance between the die and so on may cause the rubber sheath cable surface to appear hemp pattern.


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