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It has a significant impact on the service life of steel wire ropes, and the main characteristics of steel wire ropes for dock cranes are:
1. Reasonable overall structure
2- High breaking force of steel wire rope
3- Improve the flexibility of steel wire ropes
4- Good wear and corrosion resistance
It is recommended to use wire contact or surface contact wire ropes for dock cranes, and 8-strand steel core wire ropes for floating cranes for better flexibility.
Common specifications: 6 * 36WS+FC, 6 * 36WS+IWR, 6K36WS+IWR, 6 * 29FI+IWR, 8K * 36WS+IWR, 35W * K7
A wire rope with adjacent layers of wire in linear contact, also known as a parallel twisted wire rope. Rope strands are made of several specifications of steel wires twisted together, with the same lay distance but different lay angles for each layer of steel wire. According to the configuration of steel wires in the strand, the wire in contact with the steel wire rope is not only in line contact between the same layer of steel wires, but also between adjacent layers of steel wires. Each layer of steel wire in the strand has the same lay direction and lay distance.
The diameter of each layer of steel wire is different and has a certain ratio, so it has the following characteristics: 1) the internal structure of the strand is in close contact with the points, which can reduce the relative sliding between the internal steel wires during use; The lay distance of the steel wire inside the strand is equal, the lay angle of the inner layer is small, and the overall elongation of the rope is relatively smaller than that of the steel wire rope in point contact;, 2) The density coefficient is relatively high. When other conditions are the same, the strength loss after twisting is smaller than that of point contact wire rope. When the diameter and strength are the same, point contact wire rope can withstand higher loads than point contact wire rope;, 3) During work, the bending and contact stresses on the steel wires inside the rope are relatively small; 4) The lifespan is 20% to 40% longer than that of ordinary point contact steel wire ropes, and can even reach 1-2 times.
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