High-performance three-ply polythene cable for net cage or fishing gear

Abstract

The invention provides a high performance three-strand polyethylene rope for net cages or fishing gears, which relates to a rope material for fishing needing to improve the tenacity property of the rope. In the rope, high-strength polyethylene monofilaments are used; the rope is characterized in that the rope strand diameter is determined according to the rope diameter and the strand forming empirical coefficient, and the strand forming empirical coefficient is between 0.472 and 0.495; the number of monofilaments for rope yarn forming is determined according to the number of spinneret holes and the empirical coefficient of the spinneret holes; the number of yarns for rope strand are determined according to the combination of the diameter of rope yarns and the empirical coefficient of the yarns for the rope strand, and the empirical coefficient of the yarns for the rope strand is between 0.935 and 0.990; the ratio of the rope twist coefficient to the strand twist coefficient is 1.12, and the rope twist coefficient is between 2.6 and 2.9; and the high-strength fishing polyethylene monofilaments are twisted into the rope yarns along the Z direction, 1 to 20 strands of Z-direction rope yarns are twisted into a rope core along the S direction, the rope yarns with certain quantity and one rope core are additionally twisted into the rope strand along the S direction, and at last three strands of rope strands are twisted into the high performance three-strand polyethylene rope for the net cages or the fishing gears along the Z direction. The rope is applied to the net cages or the fishing gears.

Description

Technical field: [0001] The present invention relates to rope materials for fishing. Background technique: [0002] Rope is an essential material for making net cages or fishing gear. Ropes are divided into polyethylene ropes, polyamide ropes and polypropylene ropes according to raw materials, and three-strand ropes, four-strand ropes and six-strand ropes according to the number of strands. Cage ropes, fishing gear ropes, marine ropes and military ropes, etc., due to the functional requirements of the net cage or fishing gear components for knot positioning, gauging and eye opening, and main load, the selection of fiber materials and the manufacturing process of net cages or fishing gear The ropes should be used in conjunction with Network cables are somewhat different. Under normal conditions, the rope is used as a flexible structural material, and the breaking strength is the most important index to measure its fishing performance. The monofilaments used in the processin...

AI Technical Summary

Problems solved by technology

The three-strand polyethylene ropes used for existing net cages or fishing gear mainly increase the strength by increasing the diameter during rope making, which not only increases the weight, volume, cost, energy consumption and water resistance of the net cage or fishing gear, but also increases the use of the net cage or fishing gear. Difficulty in operation and transportation; when the power of fishing boats, deck space and the capacity of net lifting equipment remain unchanged, it is difficult to implement the method of increasing the strength of the rope by increasing the diameter of the rope, unless people spend a lot of money and time to buy new high-power fishing boats or Large-scale netting equipment, which not only requires a lot of investment, but also has a long construction period and slow results

Therefore, the ordinary three-strand polyethylene rope has relatively large defects and limitations in the large-scale development of modern net cages or fishing gear. chemical and deepwater operations