Surface damage of galvanized steel wire rope
Steel wire rope or steel wire surface caused by contact with the external pressure, scratches, pendants, scratches or nail wounds, such as the surface damage, but in the manufacturing process due to press pressure die, the pre-variant or roll mold, such as plastic deformation does not belong to the category of surface damage. If one of the following conditions is found in the inspection process, the liability shall be investigated in accordance with the standard stipulations.
Pressure injury: galvanized steel wire rope Because the rope strands were crushed, the wire rope deformation, rope stock pressure injury, rope diameter and deformation caused by uneven twist, the gap increased, the gap increased, the core exposed, generally by the removal of the drop, external impact caused.
Touch: After the injury, galvanized steel wire rope caused by the hard curved convex core exposed, generally caused by transport.
Hang injury: After the rope strands are hung, the tightness of the strands is uneven; the winding rope is scrapped by a serious hanging wound, galvanized steel wire rope usually caused by the production process
Scratch: This damage is caused by transport or handling defects, usually caused by transit.
Nail injury: Line nails have been caused by internal damage, line nail fixed and the phenomenon is generally not a quality problem.
Scratches: The outer layer of steel wire is scratched by the hard object, which causes the outer layer wire to loose, galvanized steel wire rope usually caused by transit.
Zinc plating defect of galvanized steel wire rope
The surface of steel wire rope has crack, fall off, zinc accumulation, zinc scar and dew steel and other phenomena belong to galvanization flaw.
Zinc plating defects are mainly caused by the surface oil of galvanized steel wire or oxidized skin not washed off, zinc plating process Control is not strict, such as the purity of zinc, temperature, equipment running speed and smoothness, improper treatment of zinc slag and other reasons.