Steel wire rope is a machine that consists of a number of moving parts that are designed and manufactured to be in constant interaction with each other. Steel ropes consist of wires, strands and a core. The main element is steel wire. Wire ropes are produced by careful processing and shaping of wires with predetermined physical properties and nominal strength.
STEEL WIRE ROPE STRUCTURE
Steel ropes are named according to the structures. Special ropes may have their own names (6×19 Seale, 6×36 Warrington Seale, X 53, HD 8 K etc.) extensions like Standard, Filler, Seale, Warrington Seale refers to the thinness, thickness and arrangement of the wires in a strand
Steel ropes are normally made of bright wires that have not been coated. They are galvanized if protection is required due to rust, moisture and steam.
It refers to the amount of load at which the mm2 of the wires are broken. Some nominal strengths are as follows;
1770 N/mm2 = 180 kgf/mm2
1960 N/mm2 = 200 kgf/mm2
2160 N/mm2 = 220 kgf/mm2
STEEL WIRE ROPE DIRECTION OF LAY
During the production of rope, while the wires and the strands are helically shaped, the selected directions of lay indicates the direction of the rope if lay of the strands and the wires in the strand have the opposite direction, then it is called ordinary lay, if have the same direction, then called lang lay. The lay of the strand determines the lay of the rope. The basic lays are seen to figure,