How To Distinguish The Quality Of Wire Rope
Wire rope is the mechanical properties and geometric size of the steel wire in accordance with the requirements of the twisted together in accordance with certain rules, the wire rope is composed of steel wire, rope core and grease. In material handling machinery, used for lifting, pulling, tensioning and carrying. According to the material can be divided into carbon steel wire rope and stainless steel wire rope two categories. With high strength, light weight, stable work, not easy to suddenly break the whole root, reliable work and so on.
Wire rope is a very important traction rope in lifting construction, which is related to the safety and efficiency of lifting construction, so the selection must choose a good quality operation. However, some users do not have the experience of selection, so it is not easy to identify the advantages and disadvantages of the rope, next teach you how to distinguish.
High quality wire rope strength, light weight, stable work, not easy to suddenly break the whole root, reliable work. Want to identify can start from these aspects, first of all, you can check the surface damage, see whether there is due to contact with the outside caused by pressing, touching, hanging, scratching or nail injury; You can also see whether the twist of the rope is tight, too loose, uneven, the quality of the skipping wire is poor; You can also see whether the surface rust, inferior rope packaging is not good, will accelerate the rust of the rope, if there is rust that rope quality is not good; Rope in the production will be galvanized treatment, if the surface of zinc accumulation, zinc scar and exposed steel phenomena are galvanized defects, which represents the rope is inferior rope.
Precautions for use:
A:Check the scope of inspection before use: check the wear, rust, stretching, bending, deformation, fatigue, broken wire, rope core exposed degree, to determine its safe weight (including scrap).
B:The service life of the wire rope
(1)the use of the method has a great relationship, so should be done according to the provisions of the use, prohibit dragging, throwing, use is not allowed to overload, not allowed to make the wire rope sharp Angle bending, not allowed to dramatically change the speed of lifting, avoid impact load.
(2)The steel wire rope has rust and dirt, with a wire brush and oil.
(3) The wire rope is oiled once every 4 months, and it is best to soak the core of the rope with hot oil (about 50℃) when oiled, and then wipe off the excess grease.
(4) Wire rope coil should be placed in a clean and dry place, not overlapping pile, to prevent sprain.
(5) The end of the wire rope is fastened with wire or welded with low melting point alloy, and can also be hoop tight, so as not to loose the rope head.
(6)In the case of use, the surface of the wire rope, such as oil drop extrusion, indicates that the wire rope has been subjected to considerable force, then should stop increasing the load, and check, if necessary to replace the new wire rope.
(7)The bearing capacity of the rope should be 5 to 8 times that of the total traction.
