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Method for knitting high-strength rope from high-strength polyethylene fibers

A technology of high-strength polyethylene and high-strength polyethylene, which is applied in the field of high-strength polyethylene fiber weaving high-strength ropes, can solve the problems of low utilization rate of high-strength fiber strength, high price of polyethylene fiber cables, difficult solvent recovery and unfavorable environmental protection, etc., to achieve Good toughness and flexibility, long service life, and the effect of less resin content

Inactive Publication Date: 2010-06-23
NINGBO DACHENG ADVANCED MATERIAL
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  • Summary
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AI Technical Summary

Problems solved by technology

[0003] However, in the existing production methods of polyethylene fiber cables, some do not use tension technology in each production process link, resulting in low strength utilization of high-strength fibers and serious damage to strength; some use small strands of resin to make the resin The increase of the content leads to a decrease in the tension of the rope; some equipment has a large investment, and it is difficult to recover the solvent, which is not conducive to environmental protection
And, the polyethylene fiber cable price that existing method produces is also higher

Method used

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Experimental program
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Embodiment Construction

[0008] Production method of the present invention is as follows:

[0009] Step 1. Select high-strength large-tow polyethylene fiber, the fiber specification is 2400D ~ 4800D, the strength is ≥ 32g / D, and the multi-roll tension machine is used for uniform tension. The tension applied by the multi-roll tension machine is 0.5 ~ 1.5 kg per bundle of fibers Adjust between them, and then twist the small strands of roving synchronously at the speed of the twisting machine to form a roll. The small strands of roving are generally 12000-26000 denier, the twisting is 5-20 twists per meter, and the twisting line speed is 5 per minute. ~15 meters, and the length of each small strand of roving is generally 2000-3000 meters. There are two types of twisting: S twist and Z twist.

[0010] Step 2. Merge the evenly twisted small strands of roving into multiple strands, and the size of the strands can be combined according to the requirements of the rope specifications. Generally, 50-150 small ...

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Abstract

The invention relates to a new production method for knitting a high-strength rope from high-strength polyethylene fibers, which is superior to the current production method for ropes. The method of the invention comprises the following concrete steps: selecting high-strength large-tow polyethylene fibers; by homogenizing tension by a fiber tension device, twisting and stranding multiple tows of fibers; homogenizing the tension of multiple strands of twisted fibers according to the specification requirements of the rope, combining the multiple strands of twisted fibers, and then homogenizing the tension of the combined single-strand tows; knitting 12 strands of ropes by a knitting machine; and coating resin on the surface, drying and shaping to form a high-strength polyethylene fiber rope. The rope produced by the invention has the advantages of convenient use, high strength, corrosion resistance, wear resistance, excellent toughness and flexibility, long service life and the like, and can be widely applied to the fields of industries, national defense, physical education, oceans and the like.

Description

Technical field: [0001] The invention relates to a production method for braiding high-strength ropes with high-strength polyethylene fibers. Background technique: [0002] High-strength polyethylene fiber was successfully developed in the late 1970s. The high-performance fiber that entered the market in the late 1980s is known as one of the three major high-performance fibers (carbon fiber, aramid fiber, and high-strength polyethylene fiber) in the world today. High-strength polyethylene fiber has low density, good weather resistance, strong corrosion resistance to various chemicals, wear resistance, bending resistance and cutting resistance toughness, and its strength is 15 times that of high-quality steel wire and 10 times that of ordinary chemical fibers under the same weight. Therefore, the world's developed countries are widely used in national defense military equipment, aerospace, safety protection, sports equipment, marine engineering and other fields. Especially i...

Claims

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Application Information

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IPC IPC(8): D04C1/12D04C1/02D07B1/02D07B7/14
CPCD07B1/025D07B2205/2014
Inventor 陈成泗许史安孙乃杰陈冠军
Owner NINGBO DACHENG ADVANCED MATERIAL
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