CN115161870A - High-strength ultrahigh molecular weight polyethylene composite braided rope and manufacturing method thereof - Google Patents
High-strength ultrahigh molecular weight polyethylene composite braided rope and manufacturing method thereof Download PDFInfo
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- CN115161870A CN115161870A CN202210791839.6A CN202210791839A CN115161870A CN 115161870 A CN115161870 A CN 115161870A CN 202210791839 A CN202210791839 A CN 202210791839A CN 115161870 A CN115161870 A CN 115161870A
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- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 title claims abstract description 67
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 title claims abstract description 67
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 239000002131 composite material Substances 0.000 title abstract description 14
- 239000000835 fiber Substances 0.000 claims abstract description 61
- 239000010410 layer Substances 0.000 claims abstract description 61
- 150000001875 compounds Chemical class 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 8
- 229920005989 resin Polymers 0.000 claims abstract description 8
- 239000011247 coating layer Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 22
- 238000009954 braiding Methods 0.000 claims description 13
- 239000006223 plastic coating Substances 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 9
- 229920000728 polyester Polymers 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000004952 Polyamide Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 229920002647 polyamide Polymers 0.000 claims description 7
- 229920002635 polyurethane Polymers 0.000 claims description 7
- 239000004814 polyurethane Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 5
- 238000009940 knitting Methods 0.000 description 4
- 238000009941 weaving Methods 0.000 description 4
- 239000000155 melt Substances 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000005253 cladding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
- D04C1/06—Braid or lace serving particular purposes
- D04C1/12—Cords, lines, or tows
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
- D04C1/02—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof made from particular materials
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
- D07B1/025—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics comprising high modulus, or high tenacity, polymer filaments or fibres, e.g. liquid-crystal polymers
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
- D07B1/162—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber enveloping sheathing
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2083—Jackets or coverings
- D07B2201/2092—Jackets or coverings characterised by the materials used
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2205/00—Rope or cable materials
- D07B2205/20—Organic high polymers
- D07B2205/201—Polyolefins
- D07B2205/2014—High performance polyolefins, e.g. Dyneema or Spectra
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2205/00—Rope or cable materials
- D07B2205/20—Organic high polymers
- D07B2205/2039—Polyesters
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2205/00—Rope or cable materials
- D07B2205/20—Organic high polymers
- D07B2205/2046—Polyamides, e.g. nylons
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2401/00—Aspects related to the problem to be solved or advantage
- D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
- D07B2401/2055—Improving load capacity
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2401/00—Aspects related to the problem to be solved or advantage
- D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
- D07B2401/2065—Reducing wear
- D07B2401/2075—Reducing wear externally
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Ropes Or Cables (AREA)
Abstract
The invention discloses a high-strength ultrahigh molecular weight polyethylene composite braided rope and a manufacturing method thereof, belonging to the technical field of high-strength ropes. The rope core is a long-pitch ultra-high molecular weight polyethylene fiber braided rope braided by a plurality of rope strands, each rope strand comprises a rope strand inner layer and a rope strand outer layer, each rope strand inner layer is low-twist twisted yarn made of ultra-high molecular weight polyethylene fibers, a low-melting-point resin coating layer is arranged on the periphery of each rope strand inner layer and serves as the rope strand outer layer, and a rope jacket braided by fibers is arranged on the outer layer of the rope. Under the condition that the rope core adopts a long pitch and has higher fiber strength utilization rate, the rope core still has a compact structure, the friction among rope strands of the rope core can be reduced, the strength of the ultrahigh molecular weight polyethylene compound braided rope is improved, and the service life of the rope is prolonged.
Description
Technical Field
The invention relates to a high-strength ultra-high molecular weight polyethylene composite rope and a manufacturing method thereof, in particular to a method for manufacturing a high-strength low-elongation ultra-high molecular weight polyethylene rope by improving the strength utilization rate of ultra-high molecular weight polyethylene fibers.
Background
Conventional synthetic braided rope is typically made by the following method: preparing yarns by carrying out 1 or 2 times of yarn twisting on a plurality of base yarns, twisting the yarns while doubling a plurality of yarns to prepare strands, and weaving the strands into the rope. In general, a rope braided with 8 strands is referred to as an 8-strand rope, as well as a 12-strand rope, a 16-strand rope, and the like.
The application of ultra-high molecular weight polyethylene fiber ropes has been rapidly developed in recent years. The ultra-high molecular weight polyethylene fiber has characteristics of high strength and low elongation, but if the ultra-high molecular weight polyethylene fiber having high strength and low elongation is used to manufacture a braided rope by the above-mentioned conventional twisting, stranding and braiding method, the advantage of the fiber having high strength and low elongation originally cannot be exerted because of twisting, braiding, and the like, and there is a problem that the utilization rate of the fiber strength is lowered.
Therefore, improving the strength utilization rate of the fibers in the rope is a key technology for manufacturing the high-strength rope. One of the conventional methods for improving the strength utilization rate of fibers in a rope is to manufacture a compound braided rope, wherein a long-pitch braided rope is used as a rope core, the strength of the rope is mainly provided by the rope core, and a braided jacket layer is arranged on an outer layer of the compound braided rope to serve as a protective layer of the rope.
However, such a rope has the following disadvantages:
1. when the weaving pitch of the rope core is long, the structure of the rope core is loose, and the rope core is easy to deform in the using process of the rope, so that the strength of the rope is reduced;
2. because the fiber structure of the rope core is loose, the cohesion force between fibers is poor, and mutual friction is easy to occur between strands of the rope core in the using process of the rope, so that the service life of the rope is reduced.
Disclosure of Invention
In order to solve the problems in the prior art, the invention designs the high-strength ultrahigh molecular weight polyethylene compound braided rope, and under the condition that the rope core adopts a long pitch and has higher fiber strength utilization rate, the rope core still has a compact structure, so that the friction among rope strands of the rope core is reduced, the strength of the ultrahigh molecular weight polyethylene rope is improved, and the service life of the ultrahigh molecular weight polyethylene rope is prolonged.
The technical scheme adopted by the invention is as follows: the compound braided rope comprises a rope core and a rope skin, wherein the rope core is a long-pitch ultrahigh molecular weight polyethylene fiber braided rope braided by a plurality of rope strands, each rope strand comprises two parts, namely a rope strand inner layer and a rope strand outer layer, the rope strand inner layer is composed of ultrahigh molecular weight polyethylene fiber low-twist yarns, the rope strand outer layer is a low-melting-point resin coating layer coated on the periphery of the rope strand inner layer, the outer layer of the compound braided rope is the rope skin braided by fibers, and the rope skin plays a role of a rope protective layer.
Furthermore, the twisting direction of the ultra-high molecular weight polyethylene fiber low-twist yarns forming the inner layer of the strand is S twist or Z twist, and the twisting degree is 0-40 twist/m.
Further, the structure of the rope core is 8-braided, 12-braided or 16-braided rope, and the pitch of the rope core is 3-8 times of the diameter of the rope core.
Further, the inner layers of the strands are treated with a functional coating by a polyurethane aqueous finishing agent.
Further, the melting point of the resin coating layer constituting the strand outer layer is 70 to 100 ℃, and the thickness of the strand outer layer is 1 to 3 mm.
Furthermore, the rope sheath is formed by weaving polyester fibers or polyamide fibers.
The invention also discloses a manufacturing method of the high-strength ultrahigh molecular weight polyethylene composite braided rope, which comprises the following steps of (1) bundling a plurality of 1600D ultrahigh molecular weight polyethylene fiber multifilaments with the strength of 32g/D into a fiber bundle as an inner layer of a rope strand, and twisting with low twist or without twisting in the bundling process;
(2) Finishing the inner layer of the strand prepared in the step (1) by using a polyurethane aqueous finishing agent to form a functional coating so as to improve the strength and the wear resistance of the strand;
(3) Introducing the inner layer of the strand obtained in the step (2) into a head of a plastic coating machine, taking low-melting-point polyamide as a plastic coating raw material, performing melt extrusion at 160 ℃, extruding a melt body through a die head to tightly coat the outer side of the inner layer of the strand, performing water cooling setting to form an outer layer of the strand, and pulling and rolling to obtain the strand;
(4) Using the coated rope strand as a raw material, and manufacturing an 8-braided, 12-braided or 16-braided ultrahigh molecular weight polyethylene fiber rope core on a rope braiding machine, wherein the pitch is 3-8 times of the diameter of the rope core;
(5) Adopting a plurality of 1680D polyester multifilament yarns as 1 rope skin folded yarn, and carrying out primary twisting in the doubling process to respectively prepare rope skin folded yarns in an S twisting direction and a Z twisting direction;
(6) And (5) feeding the ultra-high molecular weight polyethylene fiber rope core obtained in the step (4) from the center of a braiding machine, and braiding 48 strands of the sheath compound yarns obtained in the step (5) outside the rope core to form a sheath, so as to prepare the ultra-high molecular weight polyethylene fiber compound braided rope.
Further, the twist of the strand in the step (1) is 0-40 twist/m, and the twist direction is S twist direction or Z twist direction.
Further, the thickness of the strand outer layer in the step (3) is 1-3 mm.
Compared with the prior art, the high-strength ultrahigh molecular weight polyethylene composite braided rope designed by the invention has the advantages that: 1. the inner layer of the rope strand is low-twist twisted yarn made of ultra-high molecular weight polyethylene fiber, the ultra-high molecular weight polyethylene braided rope of the rope core has a longer pitch, the fiber low-twist is made into the rope strand, the rope core is braided by the long-pitch of the rope strand, the strength utilization rate of the fiber is higher, and the prepared ultra-high molecular weight polyethylene composite braided rope has high strength and low elongation;
2. because the resin layer is tightly coated on the outer layer of the rope strand, the rope strand has a tighter structure, and the rope strand is not easy to loosen in the using process of the rope, so that the strength is not reduced;
3. the rope strands are compact, the friction resistance between the rope strands coated with the outer layers of the rope strands is improved, and the service life of the rope is prolonged;
4. the low-melting-point polyamide with a lower extrusion temperature is used as the strand outer layer, so that the surface of the ultra-high molecular weight polyethylene fiber is not thermally damaged due to overhigh temperature in the resin extrusion and cladding process, and the strength of the strand inner layer is prevented from being reduced.
Drawings
Fig. 1 is a schematic structural view of the high-strength ultra-high molecular weight polyethylene multi-braided rope of the present invention.
Fig. 2 presents a schematic structure of a strand of the high-strength ultra-high molecular weight polyethylene rope according to the invention.
In the figure: 1-compound weaving a rope; 2-rope core; 3-rope leather; 4-strands; 5-inner strand layer, 6-outer strand layer.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments. The technical solutions in the embodiments of the present invention are clearly and completely described, and the described embodiments are only some, but not all, of the inventive embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative efforts shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, the present invention discloses an embodiment of a high-strength ultra-high molecular weight polyethylene composite braided rope, in this embodiment, the composite braided rope 1 includes a core 2 and a sheath 3, and the core 2 is a long-pitch ultra-high molecular weight polyethylene fiber braided rope braided by 12 strands 4.
The strand 4 comprises two parts, namely a strand inner layer 5 and a strand outer layer 6, wherein the strand inner layer 5 is formed by ultra-high molecular weight polyethylene fiber low-twist yarns, and the twisting direction can be S twisting or Z twisting. The strand outer layer 6 is a low-melting-point resin coating layer that coats the outer periphery of the strand inner layer 5. The thickness of the strand outer layer 5 may be 1-3 mm. The rope sheath 3 is woven by polyester fiber and is coated on the outer side of the rope core to play a role of a rope protective layer.
Example 1
The embodiment discloses a first manufacturing method for preparing an ultrahigh molecular weight polyethylene composite braided rope with a 12-braided structure and a nominal diameter of 40mm, which comprises the following specific steps:
(1) Twisting a plurality of 1600D ultra-high molecular weight polyethylene fiber multifilaments with the strength of 32g/D in a doubling process, wherein the twist number is 30 twists/meter, and respectively preparing rope yarns in an S twist direction and a Z twist direction;
(2) Combining a plurality of rope yarns in the same direction into one rope strand, twisting in the yarn combining process, wherein the twist degree is 20 twists/m, and obtaining inner layers of the rope strand in the S twist direction and the Z twist direction respectively;
(3) Finishing the inner layer of the strand prepared in the step (2) by using a polyurethane aqueous finishing agent to form a functional coating so as to improve the strength and the wear resistance of the strand;
(4) Introducing the inner layer of the strand obtained in the step (3) into a head of a plastic coating machine, taking low-melting-point polyamide as a plastic coating raw material, performing melt extrusion at 160 ℃, extruding a melt body through a die head to tightly coat the outer side of the strand, coating the single-wall thickness of the plastic coating with 1mm, performing water cooling setting (water temperature of 15 ℃, water cooling length of 6 m), and pulling and rolling to obtain the strand with the linear density of 60.4 g/m;
(5) Taking the coated strand in half S twisting direction and half Z twisting direction as raw materials, and manufacturing a 12-braided ultrahigh molecular weight polyethylene fiber rope core on a rope braiding machine, wherein the pitch is 240 mm;
(6) Adopting a plurality of 1680D polyester fiber multifilaments and 1 rope skin folded yarn, carrying out primary twisting in the doubling process, wherein the twist degree is 30 twists/m, and respectively preparing the rope skin folded yarn in the S twist direction and the Z twist direction;
(7) And (3) feeding the ultra-high molecular weight polyethylene fiber rope core obtained in the step (5) from the center of a braiding machine, and braiding 48 strands of the sheath compound yarns prepared in the step (6) outside the rope core to form a sheath to prepare the ultra-high molecular weight polyethylene fiber compound braided rope.
Example 2
The embodiment discloses a second manufacturing method for preparing an ultrahigh molecular weight polyethylene composite braided rope with a 12-braided structure and a nominal diameter of 40mm, which comprises the following specific steps:
(1) Bundling the same number of 1600D ultrahigh molecular weight polyethylene fiber multifilaments with the strength of 32g/D into a fiber bundle as an inner layer of a strand, wherein the fiber bundle is not twisted in the bundling process;
(2) Finishing the inner layer of the strand prepared in the step (1) by using a polyurethane aqueous finishing agent to form a functional coating so as to improve the strength and the wear resistance of the strand;
(3) Introducing the inner layer of the strand obtained in the step (2) into a head of a plastic coating machine, taking low-melting-point polyamide as a plastic coating raw material, performing melt extrusion at 160 ℃, extruding a melt body through a die head to tightly coat the outer side of the strand, coating the single-wall thickness of the plastic coating with 1mm, performing water cooling setting (water temperature of 15 ℃, water cooling length of 6 m), and pulling and rolling to obtain the strand with the linear density of 58.7 g/m;
(4) Taking the coated strand as a raw material, and manufacturing a 12-braided ultrahigh molecular weight polyethylene fiber rope core on a rope braiding machine, wherein the pitch is 240 mm;
(5) Adopting 1 rope skin folded yarn of the same number of 1680D polyester multifilament yarns, carrying out primary twisting in the doubling process, wherein the twist degree is 30 twists/m, and respectively preparing the rope skin folded yarn in the S twist direction and the Z twist direction;
(6) And (3) feeding the ultra-high molecular weight polyethylene fiber rope core obtained in the step (4) from the center of a knitting machine, and knitting 48 strands of the sheath compound yarns prepared in the step (5) outside the rope core to form a sheath, so as to prepare the ultra-high molecular weight polyethylene fiber compound rope.
Comparative example
The comparative example adopts the traditional manufacturing process to prepare the ultra-high molecular weight polyethylene composite braided rope with 12 braided structure and nominal diameter of 40mm, and the specific steps are as follows:
(1) Twisting 1600D ultrahigh molecular weight polyethylene fiber multifilaments with the same quantity and the strength of 32g/D in a doubling process, wherein the twist degree is 60 twists/m, and respectively preparing rope yarns in an S twist direction and a Z twist direction;
(2) Combining the same number of rope yarns in the same direction into one rope strand, twisting in the yarn combining process, wherein the twist degree is 50 twists/m, and rope strands in an S twist direction and a Z twist direction are obtained respectively;
(3) Finishing the strand prepared in the step (2) by using a polyurethane aqueous finishing agent to form a functional coating so as to improve the strength and the wear resistance of the strand;
(4) Using half S twist direction and half Z twist direction strands as raw materials, and manufacturing 12-braided ultrahigh molecular weight polyethylene fiber rope cores on a rope braiding machine, wherein the pitch is 140 mm;
(5) Adopting 1 piece of rope skin folded yarn with the same number of 1680D polyester multifilament, carrying out primary twisting in the doubling process, wherein the twist number is 30 twists/meter, and respectively preparing the rope skin folded yarn in the S twist direction and the Z twist direction;
(6) And (3) feeding the ultra-high molecular weight polyethylene fiber rope core obtained in the step (4) from the center of a knitting machine, and knitting 48 strands of the sheath compound yarns prepared in the step (5) outside the rope core to form a sheath, so as to prepare the ultra-high molecular weight polyethylene fiber compound rope.
The breaking strength of the ultra-high molecular weight polyethylene composite braided ropes manufactured by the manufacturing methods of examples 1 and 2 and the comparative example was measured, and the measurement results are shown in table 1.
Table 1 breaking strength and fiber strength utilization of ropes
As can be seen from the data obtained in table 1, the breaking strength of the rope manufactured by the manufacturing method of example 1 is 1.40 times the breaking strength of the rope manufactured by the manufacturing method of the comparative example; the breaking strength of the rope produced by the production method of example 2 was 1.47 times that of the rope produced by the production method of comparative example. Therefore, the strength utilization rate of the ultra-high molecular weight polyethylene fiber composite rope with low twist and long pitch designed by the invention to the ultra-high molecular weight polyethylene fiber is higher.
The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, which is defined by the appended claims and the description of the invention.
Claims (9)
1. The high-strength ultrahigh molecular weight polyethylene compound braided rope is characterized by comprising a rope core and a rope jacket, wherein the rope core is a long-pitch ultrahigh molecular weight polyethylene fiber braided rope braided by a plurality of rope strands, the rope strands comprise a rope strand inner layer and a rope strand outer layer, the rope strand inner layer is formed by ultrahigh molecular weight polyethylene fiber low-twist yarn, the rope strand outer layer is a low-melting-point resin coating layer coated on the periphery of the rope strand inner layer, the outer layer of the compound braided rope is the rope jacket braided by fibers, and the rope jacket plays a role of a rope protection layer.
2. The high-strength ultra-high molecular weight polyethylene multi-braided rope according to claim 1, wherein the direction of twist of the ultra-high molecular weight polyethylene fiber low-twist yarn constituting the inner layer of the strand is S twist or Z twist, and the twist is 0 to 40 twist/m.
3. The high-strength ultrahigh molecular weight polyethylene multi-braided rope according to claim 2, wherein the structure of said core is 8-, 12-or 16-braided rope, and the pitch of the core is 3-8 times its diameter.
4. A high strength ultra high molecular weight polyethylene multi-braided rope according to claim 3, characterized in that the inner layers of said strands are treated with a polyurethane aqueous finishing agent with a functional coating.
5. A high-strength ultra-high molecular weight polyethylene multi-braided rope according to claim 4, characterized in that the melting point of the resin coating layer constituting the strand outer layer is 70-100 ℃, and the thickness of said strand outer layer is 1-3 mm.
6. The high-strength ultrahigh molecular weight polyethylene multi-braided rope according to claim 5, wherein said sheath is braided with polyester fibers or polyamide fibers.
7. The method for manufacturing the high-strength ultrahigh molecular weight polyethylene multi-braided rope according to claim 6, characterized in that the manufacturing method comprises (1) bundling a plurality of 1600D ultrahigh molecular weight polyethylene multifilament yarns with the strength of 32g/D into a fiber bundle as an inner layer of a strand, and the bundling process is carried out with low twist twisting or without twisting;
(2) Finishing the inner layer of the strand prepared in the step (1) by using a polyurethane aqueous finishing agent to form a functional coating so as to improve the strength and the wear resistance of the strand;
(3) Introducing the inner layer of the strand obtained in the step (2) into a head of a plastic coating machine, taking low-melting-point polyamide as a plastic coating raw material, performing melt extrusion at 160 ℃, extruding through a die head to enable an extruded solution to be tightly coated on the outer side of the inner layer of the strand, performing water cooling shaping to form an outer layer of the strand, and pulling and winding to obtain the strand;
(4) Using the coated rope strand as a raw material, and manufacturing an 8-braided, 12-braided or 16-braided ultrahigh molecular weight polyethylene fiber rope core on a rope braiding machine, wherein the pitch is 3-8 times of the diameter of the rope core;
(5) Adopting a plurality of 1680D polyester multifilament yarns as 1 rope skin folded yarn, and carrying out primary twisting in the doubling process to respectively prepare rope skin folded yarns in an S twisting direction and a Z twisting direction;
(6) And (5) feeding the ultra-high molecular weight polyethylene fiber rope core obtained in the step (4) from the center of a braiding machine, and braiding 48 strands of the sheath compound yarns obtained in the step (5) outside the rope core to form a sheath, so as to prepare the ultra-high molecular weight polyethylene fiber compound braided rope.
8. The method for manufacturing a high-strength ultrahigh molecular weight polyethylene multi-braided rope according to claim 7, wherein the number of twists in the strand in the step (1) is 0 to 40 twists/m, and the direction of twist is the S or Z direction of twist.
9. A method for manufacturing a high-strength ultra-high molecular weight polyethylene multi-braided rope according to claim 8, wherein the thickness of the outer layer of the strands in step (3) is 1-3 mm.
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| CN202210791839.6A CN115161870A (en) | 2022-07-07 | 2022-07-07 | High-strength ultrahigh molecular weight polyethylene composite braided rope and manufacturing method thereof |
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| CN202210791839.6A CN115161870A (en) | 2022-07-07 | 2022-07-07 | High-strength ultrahigh molecular weight polyethylene composite braided rope and manufacturing method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4640178A (en) * | 1984-02-01 | 1987-02-03 | Teufelberger Gesellschaft M.B.H. | Rope |
| JP2000178888A (en) * | 1998-12-11 | 2000-06-27 | Tokyo Seiko Seni Rope Kk | Fiber rope |
| CN104611961A (en) * | 2015-02-09 | 2015-05-13 | 宁波大成新材料股份有限公司 | Preparing method of ultra high molecular weight polyethylene fiber wear-resisting rope |
| CN111593591A (en) * | 2020-05-27 | 2020-08-28 | 山东鲁普科技有限公司 | Composite cable for navigation mark anchoring system and manufacturing method thereof |
-
2022
- 2022-07-07 CN CN202210791839.6A patent/CN115161870A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4640178A (en) * | 1984-02-01 | 1987-02-03 | Teufelberger Gesellschaft M.B.H. | Rope |
| JP2000178888A (en) * | 1998-12-11 | 2000-06-27 | Tokyo Seiko Seni Rope Kk | Fiber rope |
| CN104611961A (en) * | 2015-02-09 | 2015-05-13 | 宁波大成新材料股份有限公司 | Preparing method of ultra high molecular weight polyethylene fiber wear-resisting rope |
| CN111593591A (en) * | 2020-05-27 | 2020-08-28 | 山东鲁普科技有限公司 | Composite cable for navigation mark anchoring system and manufacturing method thereof |
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