Manufacturing method for high-wear-resistance polyethylene fishing net

Abstract

The invention specifically relates to a manufacturing method for a high-wear-resistance polyethylene fishing net, belonging to the technical field of manufacturing of fishing gear materials. The manufacturing method comprises the following steps: preparation of auxiliary agents; batching; granulation; wire drawing; and shaping. Compared with the prior art, the invention has the following advantages: through addition of the auxiliary agents and reasonable control of conditions in each step, amorphous parts in netting twines are obviously oriented, shish-kebab and fibrous structures are formed in a sample, and the degree of crystallization reaches 65.84%, 63.5% higher than the crystallization degree of polyethylene filaments; and due to changes of conditions like water cooling, the manufacturing cost of the fishing net is increased by about 1200 yuan / ton, but the prepared polyethylene fishing net overcomes the disadvantage of softening and adhesion fatigue of polyethylene filament materials caused by the action of frictional heat, has resistance to frictional heat and wear resistance stability, presents good strength retention ratio under the condition of dry friction or water lubrication and is improved in the usage performance of fishing net threads.

Description

technical field [0001] The invention belongs to the technical field of fishing gear material manufacturing, and in particular relates to a manufacturing method of a high wear-resistant polyethylene fishing net. Background technique [0002] During the use of polyethylene fishing nets, they are damaged due to severe friction with stones, cement, steel, plastics and other metal and non-metallic materials. The scrapping and damage of the nets mainly come from wear and tear, so the service life mainly depends on the durability of the nets Abrasion performance, the existing polyethylene fishing net mainly improves the wear resistance by increasing the twist when the fishing net is twisted. When the twist is increased by 30%, the wear resistance of the fishing net can be improved by about 15-20%, which is high. The defect of increasing the internal twist and external twist of the viscosity polyethylene fiber fishing net is that the breaking strength of the fishing net will be lost...

AI Technical Summary

Problems solved by technology

[0002] During the use of polyethylene fishing nets, they are damaged due to severe friction with stones, cement, steel, plastics and other metal and non-metallic materials. The scrapping and damage of the nets mainly come from wear and tear, so the service life mainly depends on the durability of the nets Abrasion performance, the existing polyethylene fishing net mainly improves the wear resistance by increasing the twist when the fishing net is twisted. When the twist is increased by 30%, the wear resistance of the fishing net can be improved by about 15-20%, which is high. The defect of increasing the internal twist and external twist of the viscosity polyethylene fiber fishing net is that the breaking strength of the fishing net will be lost by 20-30%. It not only increases the manufacturing cost, but also increases the weight of the mesh by about 30%, thus greatly increasing the cost of using the net. Due to the high elongation percentage of the high-viscosity fishing net, the net is easily deformed or broken due to uneven force. , the use and fishing effect is poor, and the use limitations are large. The resulting waste of resources such as tugboat resistance indirectly affects the use cost of fishing gear

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