CN-119041093-B - Basalt fiber rope and preparation method thereof

CN119041093BCN 119041093 BCN119041093 BCN 119041093BCN-119041093-B

Abstract

The invention discloses a basalt fiber rope and a preparation method thereof, wherein basalt fibers and flexible flame-retardant fibers are selected to manufacture the rope, each bundle of fiber yarns is clean and tidy, no broken yarns or defects are caused, 3 100 dtex-600 dtex flexible flame-retardant fibers are wrapped outside 1-2 basalt fibers, the basalt fibers are combined on a doubling machine to form core-spun yarns, the core-spun yarns are combined to manufacture twisted yarns, a plurality of core-spun yarns are combined together, the core-spun yarns are covered by a core-spun strand machine to form a rope strand with a sheath, the finished rope strand is woven on a weaving machine to form a fiber rope I, and a horizontal tension machine is adopted to perform a breaking tension test on the fiber rope I.

Inventors

HOU BINGBING
ZHOU JIADE
LI YANXI
WANG YUHUA
LI JIHAN
LI JI
LI HANGYU
LI MAOBEN
Lin Yuntian
Dong Hailei

Assignees

浙江四兄绳业有限公司

Dates

Publication Date: 20260508
Application Date: 20240904

Claims (4)

1. A preparation method of basalt fiber rope comprises the following steps: Firstly, selecting basalt fibers (1) and flexible flame-retardant fibers (2) to manufacture ropes, and ensuring that fiber filaments of each bundle are clean and tidy without broken filaments and defects, wherein 3 100 dtex-600 dtex flexible flame-retardant fibers (2) are wrapped outside 1-2 basalt fibers (1) with 500dtex-2000dtex, and doubling is carried out on a doubling machine to form core-spun yarns (3); Step two, doubling and twisting 4-8 core yarns (3) through a doubling machine to form first twisted yarns (4), wherein the twist of the first twisted yarns (4) is 10-20T/m, and the twist direction is S twist or Z twist; Combining a plurality of first twisted yarns (4), cladding the first twisted yarns (4) by adopting a core-spun strand making machine to form a first rope strand (6) with a sheath (5), wrapping basalt fibers (1) in the sheath (5), and weaving the sheath (5) in a warp and weft direction, wherein the thickness of the sheath (5) is 2-4mm; Weaving the finished first rope strand (6) into a first fiber rope (7) on a weaving machine, wherein the diameter of the first fiber rope (7) is 3.5-4.5 times of the inner diameter of the sheath (5), and the weaving lay length of the first fiber rope (7) is 8-12 times of the diameter of the first fiber rope (7), and the structure is 1X 12, 2X 12 or 16; and fifthly, carrying out breaking force test on the first fiber cable (7) by adopting a horizontal pulling machine, wherein the first fiber cable (7) is circulated for 10 times from 1% of designed breaking force to 50% of designed breaking force before the test, then is pulled to break, and finally the breaking force of the first fiber cable (7) is not smaller than the designed breaking force.
2. A method for manufacturing a basalt fiber rope according to claim 1, characterized in that after the core spun yarn (3) is made from fibers according to step one, the fiber rope is made by the following steps: Step two, doubling and twisting 5-20 core yarns (3) through a doubling machine to form a second twisted yarn (8), wherein the twist of the second twisted yarn (8) is 20-35T/m, and the twist direction is S twist or Z twist; twisting the finished second twisted yarn (8) on a stranding machine to form a second twisted yarn (9), wherein the twisting distance of the second twisted yarn (9) is 20-25 times of the diameter of the second twisted yarn (9), and the twisting direction of the second twisted yarn (9) is opposite to that of the second twisted yarn (8); Weaving the finished second rope strand (9) into a second fiber cable (10) on a weaving machine, wherein the weaving lay length of the second fiber cable (10) is 8-12 times of the diameter of the second fiber cable (10), the diameter of the second rope strand (9) is 2/5-1/5 times of the diameter of the second fiber cable (10), and the structure is 1X 12, 2X 12 or 16; and fifthly, carrying out breaking force test on the fiber cable II (10) by adopting a horizontal pulling machine, wherein the fiber cable II (10) is circulated for 10 times from 1% of designed breaking force to 50% of designed breaking force before the test, then the fiber cable II (10) is pulled to break, and finally the breaking force of the fiber cable II (10) is not smaller than the designed breaking force.
3. The method for producing basalt fiber rope according to claim 1, wherein the flexible flame retardant fiber (2) in the step one is any one or more of flame retardant polyester fiber, flame retardant viscose fiber and aramid fiber.
4. Basalt fiber rope obtained by the production method according to any one of claims 1 or 2.

Description

Basalt fiber rope and preparation method thereof Technical Field The invention relates to the technical field of cables, in particular to a basalt fiber rope and a preparation method thereof. Background The basalt fiber rope is a high-performance fiber rope which is formed by processing natural basalt ores through high-temperature melting, wiredrawing, weaving and other processes. The basalt fiber has good tensile strength, excellent high temperature resistance and fireproof performance, stable chemical property, environment-friendly and pollution-free production process, and the basalt fiber is prepared from natural ore. But basalt fiber ropes are poor in softness, large in brittleness and fragile. Therefore, the basalt rope is required to be additionally protected for operators during conventional braiding and use, otherwise, broken fibers easily enter human skin to cause skin itch, and the basalt rope is easily inhaled into the human body to cause damage to the lung, so that the use of the basalt rope is greatly limited. The invention provides a novel basalt fiber braiding method which can reduce damage to human bodies caused by mooring ropes in the braiding process, is beneficial to actual operation, can reduce damage to human bodies on the premise of furthest exerting the high temperature resistance, fire resistance and mechanical properties of basalt fibers, and provides a solution for the problems. Disclosure of Invention The invention aims to provide a basalt fiber rope and a preparation method thereof, which solve the problem. The technical aim of the invention is realized by the following technical scheme: a preparation method of basalt fiber rope comprises the following steps: Firstly, basalt fibers and flexible flame-retardant fibers are selected to manufacture ropes, so that fiber yarns of each bundle are clean and tidy, and broken yarns and defects are avoided; Twisting 4-8 core yarns by a doubling machine to form a first twisted yarn, wherein the first twisted yarn has a twist of 10-20T/m, and the twisting direction is S twisting or Z twisting; Step three, a plurality of twisted wires are combined together, and the twisted wires are wrapped by a core-spun strand making machine to form a rope strand with a sheath, basalt fibers are wrapped in the sheath, the sheath adopts a warp-weft knitting process, and the thickness of the sheath is 2-4mm; Step four, weaving the finished rope strand I into a fiber rope I on a weaving machine, wherein the diameter of the fiber rope I is 3.5-4.5 times of the inner diameter of the sheath, the weaving lay length of the fiber rope I is 8-12 times of the diameter of the fiber rope I, and the fiber rope I has a structure of 1X 12 strands, 2X 12 strands or 16 strands; And fifthly, carrying out breaking force test on the first fiber cable by adopting a horizontal pulling machine, wherein the first fiber cable is circulated for 10 times in the process from 1% of designed breaking force to 50% of designed breaking force before the test, and then is pulled to break, and finally the breaking force of the first fiber cable is not smaller than the designed breaking force. Preferably, the fiber rope can be manufactured by the following steps after the core spun yarn is manufactured by the fiber according to the first step: twisting 5-20 core yarns by doubling machine to form a second twisted yarn, wherein the second twisted yarn is twisted by 20-35T/m, and the twisting direction is S twisting or Z twisting; twisting the finished second twisted yarn on a strand making machine to form a second twisted yarn, wherein the twisting distance of the second twisted yarn is 20-25 times of the diameter of the second twisted yarn, and the twisting direction of the second twisted yarn is opposite to the twisting direction of the second twisted yarn; step four, weaving the finished second rope strand into a second fiber rope on a weaving machine, wherein the weaving lay length of the second fiber rope is 8-12 times of the diameter of the second fiber rope, the diameter of the second rope strand is 2/5-1/5 times of the diameter of the second fiber rope, and the second rope strand has a structure of 1X 12, 2X 12 or 16 strands; And fifthly, carrying out breaking force test on the second fiber cable by adopting a horizontal pulling machine, wherein the first fiber cable is circulated for 10 times from 1% of designed breaking force to 50% of designed breaking force before the test, and then the second fiber cable is pulled to break, and finally the breaking force of the second fiber cable is not smaller than the designed breaking force. Preferably, the flexible flame-retardant fiber in the first step is any one or more of flame-retardant polyester fiber, flame-retardant viscose fiber and aramid fiber. Preferably, a basalt fiber rope is obtained by the preparation method. The manufacturing method has the beneficial effects that the basalt fiber is wrapped by the flexible flame-retardant fiber