GINDIN: продукция Casar (Казар) в России

Dipl.- Ing. Roland Verreet and Dr. Isabel Ridge: Wire Rope Forensics Fig. 143: During stranding, one strand obviously had slipped on the capstan, locally creating a long lay length. This stranding defect was not detected before the faulty strand was closed into the rope. ROPE PRODUCTION FAULTS 46 Fig. 144: A strand serving was not removed during rope closing and ended up as an unpleasant decoration of the finished rope. Fig. 145: An incorrect backtwist in the rope closer has shortened the strands. The inner wires were then be under compression and later popped out. Fig. 146: An unsuited plastic material will not give sufficient support to the outer strands. It will wear and lead to premature rope failure. Fig. 147: In multi layer spooling, small diameter differences of two ropes will lead to big diffe- rences in the spooled rope lengths (see p. 42).