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7.7.Combination ropes
Unit 7 - Floats and sinkers
7.7.Combination ropes
Combination rope or combined rope with or without a central core is manufactured by twisting strands which are formed from a combination of natural fibre or synthetic fibre yarns and steel wires. In this construction steel wires are completely covered by fibre yarns. Steel wires of 0.5-1.5 mm dia. with a carbon content of 0.4-0.9% are generally used and is either galvanized or ungalvanised. The steel wires provide high breaking strength and low extensibility while fibre component reduces stiffness and protects the steel wires from wear and tear. Polypropylene is the most widely used fibre material in combination ropes. Combination ropes are used in the construction of large bottom and midwater trawls and as sweeps and bridles.
Combination rope or combined rope with or without a central core is manufactured by twisting strands which are formed from a combination of natural fibre or synthetic fibre yarns and steel wires. In this construction steel wires are completely covered by fibre yarns. Steel wires of 0.5-1.5 mm dia. with a carbon content of 0.4-0.9% are generally used and is either galvanized or ungalvanised. The steel wires provide high breaking strength and low extensibility while fibre component reduces stiffness and protects the steel wires from wear and tear. Polypropylene is the most widely used fibre material in combination ropes. Combination ropes are used in the construction of large bottom and midwater trawls and as sweeps and bridles.
Last modified: Thursday, 29 March 2012, 8:32 AM