Processing method of rope for pelagic fishery

Abstract

The invention discloses a machining method for a rope for distant-water fishery. The machining method is characterized by comprising the following steps: pre-mixing UHMWPE powder, silicone powder, an antioxidant 1010, a nano-silver-loaded titanium dioxide antibacterial agent, hydroxy stearic acid, nano-scale white carbon black, antioxidant aid DLTP, ethylene-vinyl acetate copolymer, nano-scale diatomaceous earth and white oil which are weighed according to a formula, and then pouring the mixture into a high-speed kneading pot for performing high-speed kneading to obtain a UHMWPE-modified compound material; melting and extruding the UHMWPE-modified compound material through a double-screw extruding machine; metering an extrudate through a metering pump which is additionally mounted at the outlet of the double-screw extruding machine, and melting and extruding the extrudate from spinning holes; cooling and pre-stretching the extruded as-spun fibres; after the pre-stretched fibres are subjected to heat setting, winding melt-spinning tows by a fibre winding machine using a torque motor; performing primary twisting on the melt-spinning tows to obtain an S-directional rope strand; machining three S-directional rope strands into a Z-twisted rope for the distant-water fishery through a three-strand rope twisting machine.

Description

technical field [0001] The invention relates to a processing method of a rope used for fishing activities in the pelagic fishery. Background technique [0002] Pelagic fishery refers to fishing activities that are carried out in the coastal waters or deep seas of other countries away from the fishing port or fishery base of the country. Pelagic fishery is a fishing fleet composed of a large-scale processing mother ship with a high degree of mechanization and automation, advanced and complete fishing aid and navigation equipment, and a long battery life, as well as several fishing sub-ships, refueling ships, and transport ships; its development depends on The country's economic strength, degree of industrialization, level of marine science and technology, domestic and foreign markets, consumption levels and other factors (such as the technical level of ropes used in pelagic fisheries, etc.). In the field of pelagic fishery technology, people refer to melt-spun monofilament a...

AI Technical Summary

Problems solved by technology

In the field of prior art, melt-spinning for rope-making uses a single high-density polyethylene resin (hereinafter referred to as HDPE resin) as a raw material, and is processed and produced by a traditional melt-spinning process, which makes the melt-spun yarn and the rope products made of it have better performance. Poor (for example, the breaking strength of the existing rope with a diameter of 7.1mm is only 4649N, and the breaking strength of the melt-spun yarn used for rope making is only 5.2cN / dtex). Broken net broken accident, the breaking strength, wear resistance, safety, elongation at break, and antibacterial property of ropes and melt-spun yarns used for rope making in the prior art field are poor, and it is difficult to adapt to the development needs of modern pelagic fisheries. People urgently need to process Good production safety, high breaking strength (50% higher than that of existing pelagic fishery ropes of the same diameter, and the breaking strength of melt-spun yarns for rope making is greater than 8.0cN / dtex), good wear resistance (abrasion resistance is higher than that of existing pelagic fishery ropes). High-performance pelagic fishery rope with high elongation at break (more than 50% elongation at break) and certain antibacterial and antiseptic

In this field, HDPE resin raw materials, traditional melt spinning and rope-making processes cannot produce the above-mentioned high-performance pelagic fishery ropes at all, and ultra-high molecular weight polyethylene (UHMWPE) has extremely poor processing fluidity. Therefore, pelagic fishery ropes have become local Long-term unresolved technical problems in the field