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Five Common Reasons Caused Defects of Rubber Cables Appearance

Number of visits: Date:3/9/2015 10:09:18
In the production process,it inevitably will have some quality issues, so does the wire and cable. In the production process of rubber cables, they often appear on the appearance, such as the surface is not smooth; the surface of clinker particles (early vulcanized rubber particles) or impurities; wire and cable surface scratches, abrasions; surface subsidence; surface patterns, such as hemp. The following is the collection of five common causes of rubber cables appearance defects:
 
First, the die sets bearing line is too long or too short, not smooth and pore die too; head, die or low body temperature; plastic rubber material and small rubber cables are likely to lead to the surface is not smooth.
 
Second, the supply of rubber is not clean, containing impurities; rubber scorch time is too short; squeeze rubber body, head or die temperature is too high; the nose rubber flow flow, and there are dead rubber material retention; not screw Smooth, rayon and other rubber cables are likely to lead to the surface of clinker particles (early vulcanized rubber particles) or impurities.
 
Third, the die sets is not smooth, without chamfer; impurities or cooked glue particles block the die; in the vulcanization tube tow tube abrasions; vulcanized rubber gasket seals the tube outlet aperture is small and so are likely to lead to scratch the surface of rubber cables injuries, abrasions.
 
Fourth, die sets aperture too; between the outer conductive core strands, the gap between the filaments is too large, uneven outer diameter of the cable core; small rubber material plasticity, viscosity difference; rubber compound impurities; to die from Little pressure and small rubber cables are likely to lead to surface subsidence.
 
Fifth, die sets aperture is too small; extruded rubber material shortage, core gaps be filled; conductive core or cable core jumper; for a short distance, such as mold rubber cables are likely to lead to the surface of hemp patterns.

TypeInfo: Industry news

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