2013年9月28日星期六

easy to break suddenly the whole root


With multiple or multi-strand twisted flexible thin wire rope, wire rope is twisted into shares by the multi-layer, then the cord as the center, by a number of strands twisted into a spiral around the rope. In material handling machinery for improved traction, tensioning and load-bearing purposes. Rope, high strength, light weight, smooth, easy to break suddenly the whole root, reliable work.
Structure
⑴ wire
Play a role in load bearing rope, the performance is mainly determined by the wire. Carbon steel or alloy steel wire is cold-drawn or cold-formed by a circular (or shaped) wire, high rider pallet truck and toughness, and according to different environmental conditions for surface treatment of steel.
⑵ rope core
The main function of the core rope to increase the flexibility and toughness of steel wire rope, wire lubrication, reduce hand pallet truck, high rope life. Common types include organic fiber cord (such as hemp, cotton), synthetic fibers, asbestos core (high temperatures) or a soft metal and other materials.
Hierarchical classification
Brief introduction
Rope twist around at the level can be divided into single-winding rope, double and triple roping roping.
Single-roping
By a number of thin wire around a metal core twist from the system, flexibility is poor, easy to wear when bent repeatedly broken, mainly for not exercising taut cable.
Dual roping
Shares by the twisted steel wire rope core and then surrounded by a twisted rope shares. Common core of hemp rope core, high-temperature operation is appropriate asbestos-core or soft steel wire twisted metal core. Dipping the cord in front rope lubricant, wire each other to reduce the damage caused by friction. Dual flexible rope around better, making simple and most widely used.

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