High-strength steel wire rope and manufacturing method thereof

Abstract

According to the high-strength steel wire rope, the ultra-high molecular weight polyethylene fiber is adopted as the center core, the three-time twisting and heat setting technology is combined, and the tension strength, the structural stability and the anti-fatigue capacity are improved. And the composite inner layer strand adopts a spiral wrapping and twisting structure of high-strength aramid fibers and steel wires, so that the tensile strength and the fatigue resistance are enhanced, and the abrasion and fracture risks are reduced. The outer-layer strands are provided with the limiting reinforcing ribs and the filling layers, friction is reduced, loosening is prevented, and durability and safety are improved. The outer protective layer is composed of the steel wire mesh, the corrosion-resistant layer and the wear-resistant layer, corrosion and abrasion are prevented, and the service life is prolonged. The invention further provides a preparation method of the high-strength steel wire rope, the method is simple and clear in operation process and high in applicability, the prepared high-strength steel wire rope is excellent in performance, higher in bearing capacity, higher in fatigue resistance, excellent in corrosion resistance and longer in service life, and the requirements for high strength and high durability are met.

Description

Technical Field

[0001] The invention relates to the technical field of steel wire rope manufacturing, and in particular to a high-strength steel wire rope and a manufacturing method thereof. Background Art

[0002] Steel wire rope is a spiral steel wire bundle made by twisting together steel wires that meet the requirements of mechanical properties and geometric dimensions according to certain rules. It is composed of steel wire, rope core and grease. Steel wire rope has high strength, light weight, stable operation, not easy to break suddenly, reliable operation, and is widely used in daily life. Due to the unique properties of steel wire rope, it has been an indispensable material or component in metallurgy, mining, oil and gas drilling, machinery, chemical industry, aerospace and other fields. Therefore, the quality of steel wire rope has also been concerned by many industries. However, due to structural design and other reasons, some steel wire ropes on the market currently have insufficient properties such as wear resistance and breaking tensile strength, so their own service life is low and it is difficult to guarantee when in use. Therefore, how to improve the comprehensive performance of steel wire rope so that it has higher strength and longer service life is a problem that is constantly being studied in this field. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a high-strength steel wire rope and a manufacturing method thereof.

[0004] A high-strength steel wire rope comprises an ultra-high molecular weight polyethylene central core, a plurality of composite inner layer strands, a plurality of filling strands, a plurality of outer layer strands, a plurality of limiting reinforcing ribs, a filling layer and an outer protective layer, wherein the ultra-high molecular weight polyethylene central core is twisted from ultra-high molecular weight polyethylene fibers twisted three times and heat-set, the outer side of the ultra-high molecular weight polyethylene central core is spirally twisted with the composite inner layer strands, the composite inner layer strands comprise a high-strength aramid fiber core and a plurality of steel wires spirally twisted on the outer side of the high-strength aramid fiber core, The outer side of the composite inner layer strands is spirally twisted with the outer layer strands, and the limiting reinforcement ribs are arranged on the side of two adjacent outer layer strands away from the composite inner layer strands, and the outer protective layer is wrapped on the outer side of the outer layer strands and the limiting reinforcement ribs, and the outer protective layer comprises a wire mesh layer, a corrosion-resistant layer and a wear-resistant layer, wherein the filling strands are arranged in the gap between the composite inner layer strands and the outer layer strands, and the filling layer is arranged to fill the gap between the outer layer strands, the limiting reinforcement ribs and the outer protective layer.

[0005] Preferably, a sound-proof layer is further provided between the steel mesh layer and the corrosion-resistant layer, and the sound-proof layer includes a first rubber layer and a second rubber layer, and the first rubber layer and the second rubber layer both include a rubber plane layer and a plurality of arc-shaped protrusions provided on the rubber plane layer, and the arc-shaped protrusions of the first rubber layer and the second rubber layer are relatively staggered.

[0006] Preferably, the composite inner layer strand comprises a high-strength aramid fiber core, a plurality of medium-thin steel wires, a plurality of medium steel wires and a plurality of fan-ring steel wires, the medium-thin steel wires are spirally twisted on the outside of the high-strength aramid fiber core, the medium-thin steel wires and the medium steel wires are twisted on the outside of the medium-thin steel wires, the medium-thin steel wires and the medium steel wires are staggered, and the fan-ring steel wires are arranged on the outside of the medium-thin steel wires and the medium steel wires.

[0007] Preferably, the outer layer strands include a central strand core, a plurality of middle layer thick steel wires spirally twisted in surface contact on the outside of the central strand core, and fan ring steel wires spirally twisted in surface contact on the outside of the middle layer thick steel wires; the central strand core includes a central steel wire and a plurality of inner layer thick steel wires spirally twisted in surface contact on the outside of the strand core steel wire.

[0008] Preferably, the filling strands are polyester fiber filling strands fully impregnated with oil, and the polyester fiber filling strands are twisted from polyester fibers that are twisted twice and heat-set.

[0009] Preferably, the position-limiting reinforcement rib comprises two two-thirds circular ring structures which are connected to each other and symmetrically arranged, and the two two-thirds circular ring structures are respectively arranged on two adjacent outer strands.

[0010] Preferably, the filling layer is a thermosetting resin filling layer.

[0011] A method for manufacturing a high-strength steel wire rope, used for manufacturing the high-strength steel wire rope, comprising the following steps:

[0012] Step 1, production of ultra-high molecular weight polyethylene central core: First, select ultra-high molecular weight polyethylene fibers that meet the requirements as raw materials, and select fiber specifications of 2400D with a strength of not less than 40g / d; the selected fibers are grouped and evenly arranged to ensure that the fiber directions are consistent, and then the ultra-high molecular weight polyethylene fibers are subjected to the first twisting treatment, with the twist range set to 10 to 14 twists / meter, and at the same time, a tension of 0.05 to 0.15g / tex is applied to each fiber to achieve structural compactness and uniform strength of the first twisted fibers; during the first twisting process, heat setting treatment is carried out simultaneously, and the heat setting temperature is set to 50 to 70°C to ensure that the fiber molecular chains are rearranged under the action of tension and high temperature, thereby improving the morphological stability and strength of the fibers;

[0013] The fibers that have completed the initial twisting enter the second twisting stage. During the first twisting process, the fiber bundles that have been twisted for the first time are further twisted, with a twist range of 8 to 12 twists / m. At the same time, a tension of 0.18 to 0.25 g / tex is applied to each fiber that has been twisted for the first time to ensure that the fibers that have been twisted for the second time have higher structural uniformity and strength. During the second twisting process, heat setting treatment is carried out simultaneously, and the heat setting temperature is set at 50 to 70°C to further optimize the arrangement structure of the fiber molecular chains.

[0014] After the second twisting, the fiber is twisted for the third time. The twist range of the third twisting is adjusted to 6-10 twists / m. At the same time, a higher intensity of tension is applied, ranging from 0.25 to 0.35 g / tex, to further improve the tensile performance and structural strength of the center core. During the third twisting process, heat setting treatment is carried out simultaneously, and the temperature is set at 50-70°C to ensure the long-term stability of the twisted shape.

[0015] Finally, the fibers that have completed the three twists are woven into an ultra-high molecular weight polyethylene central core. During the weaving process, a tension of 0.35 to 0.45 g / tex is applied to the ultra-high molecular weight polyethylene central core to ensure uniform force on the fiber bundles and tightness of the weaving structure. During the weaving process, the ultra-high molecular weight polyethylene central core is subjected to overall heat setting treatment, and the heat setting temperature is set at 60 to 70°C to further stabilize its internal molecular structure and improve the shape retention and strength of the central core.

[0016] Step 2: Preparation of composite inner layer strands: Select high-strength aramid fiber as raw material, wash it to remove surface impurities; place the washed aramid fiber in a lithium chloride methanol solution with a mass fraction of 10% to 20%, set the solution temperature to 30 to 50°C, and perform swelling treatment under stirring for 40 to 60 minutes to enhance the surface activity of the fiber and its bonding ability with subsequent materials; place the swelled aramid fiber in a silane coupling agent ethanol solution with a mass fraction of 5% to 10%, and set the reaction temperature to 40~70℃, reaction time is 1~2 hours; after the reaction, use deionized water to clean the fiber surface to remove the unreacted residual substances, and obtain the modified aramid fiber; the modified aramid fiber is subjected to the first twisting treatment, the twist range is 10~14 twists / m, and the tension of 0.05~0.15g / tex is applied during the twisting process, and heat setting treatment is carried out simultaneously, and the heat setting temperature is controlled at 50~70℃ to enhance the morphological stability and preliminary mechanical properties of the twisted fiber; the aramid fiber after the first twisting is completed is subjected to the first twisting treatment. Entering the second twisting stage, the twist range is set to 8-12 twists / m, and a tension of 0.15-0.25g / tex is applied, and heat setting treatment is carried out simultaneously. The heat setting temperature is controlled at 50-70°C to further optimize the molecular orientation of the fiber and improve the structural uniformity and strength; the third twisting is carried out on the fiber after the second twisting, and the twist range is adjusted to 6-10 twists / m. At the same time, a higher tension range of 0.25-0.35g / tex is applied, and heat setting treatment is carried out simultaneously. The heat setting temperature is controlled at 50-70°C. The temperature is set to 70℃ to ensure the tensile performance and long-term stability of the fiber; the fibers that have completed the three twists are woven into a high-strength aramid fiber core, and a tension of 0.35 to 0.45 g / tex is applied to the high-strength aramid fiber core during the weaving process to ensure uniform force on the fibers and tightness of the weaving structure during the weaving process; during the weaving process, the high-strength aramid fiber core is subjected to overall heat setting treatment, and the heat setting temperature is set to 70℃ to further stabilize its internal molecular structure and improve the shape retention and strength of the high-strength aramid fiber core;

[0017] Finally, the outer side of the braided high-strength aramid fiber core is uniformly and spirally coated with medium-thin steel wires; then, multiple medium-thin steel wires and multiple medium-thin steel wires are sequentially and spirally staggered coated on the outer side of the medium-thin steel wires; then, the fan ring steel wires are coated on the outer side of the medium-thin steel wires and the medium-thin steel wires;

[0018] Step 3, preparation of outer strands: First, select carbon steel that meets the requirements, immerse it in a pickling solution for pickling treatment to remove surface oxides and impurities; after pickling, use deionized water to clean the surface of the steel wire, and place it in a drying device, the drying temperature is set to 100℃~120℃, the drying time is 15~20 minutes, to ensure that the surface of the steel wire is dry and free of residue; then, use a wire drawing machine to draw the carbon steel for the first time, control the drawing temperature at 140℃~160℃, and adjust the drawing speed to 3~4m / s; this step draws the carbon steel into the required initial diameter to ensure that it has basic dimensional accuracy and initial mechanical properties; send the steel wire that has undergone the initial wire drawing treatment into a degreasing cleaning tank for cleaning to remove oil and impurities that may remain during the drawing process; the cleaned steel wire is treated in a dryer, and the drying temperature is set to 90℃~110℃ to ensure the surface of the steel wire No water residue; then, the steel wire enters the plating solution tank for plating treatment, the mass fraction of the plating solution is 8% to 12%, and the plating time is 10 to 15 seconds; after the plating is completed, the steel wire enters the zinc pot for galvanizing, the zinc liquid temperature is controlled between 440℃ and 460℃, and the galvanizing line speed is adjusted to 25 to 28m / minute to form a uniform and dense galvanized layer and enhance the corrosion resistance of the steel wire; the galvanized steel wire is sent to the secondary wire drawing machine for drawing, the compression rate is controlled at 75% to 85%, and 6 to 8 drawing processes are selected according to the final diameter requirements to gradually adjust the diameter of the steel wire; the drawing temperature is strictly controlled between 150℃ and 165℃, and the drawing speed is adjusted to 3.5 to 4.5m / s to ensure that the surface of the steel wire is smooth and the internal structure is uniform; in order to avoid the accumulation of processing stress, the steel wire is cooled by air cooling after each drawing, and the cooling time is 8 to 12 seconds;

[0019] Finally, the treated steel wires are arranged on the stranding machine through the wire distribution plate, and after being sprayed with oil, they are pressed by the wire pressing steel die through the closing mouth, and then collected on the I-shaped wheel to obtain the required outer strands. At the same time, the stress of the strands is effectively eliminated through the deformer; during the stranding process, the compression rate of the outer strands is controlled to be 10%, the twist length multiple is controlled to be 8, and the oiling method is the strand spraying method;

[0020] Step 4: Preparation of filling strands: First, select polyester fibers that meet the requirements as raw materials, and ensure that the fibers maintain consistent directions during the arrangement process. Then, the polyester fibers are twisted for the first time, with a twist range of 10 to 14 twists / m. During this process, a tension of 0.1 to 0.3 g / tex is applied to ensure the strength uniformity and structural tightness of the fibers. At the same time, a heat setting treatment is performed, with the temperature set at 50 to 70°C. The heat treatment rearranges the fiber molecular chains and improves the morphological stability and strength of the fibers. Next, the fiber bundles that have been twisted for the first time are twisted for the second time, with the twist set at 8 to 12 twists / m, and a tension of 0.3 to 0.5 g / tex is applied to further improve the structural uniformity and strength of the fibers. During the second twisting process, heat setting treatment is carried out simultaneously at a temperature of 50-70°C to further optimize the arrangement structure of the fiber molecular chain; then, the fibers that have completed the second twisting are woven into filling strands, and a tension of 0.2-0.4 g / tex is applied to the filling strands during the weaving process to ensure the strength uniformity and structural stability of the filling strands. During the weaving process, the filling strands are subjected to overall heat setting treatment, and the heat setting temperature is set to 70°C to further stabilize its internal molecular structure and improve the shape retention and strength of the filling strands; then, the woven fabric is soaked in grease for 5-15 minutes, and the grease soaking temperature can be 40-60°C to ensure uniform grease soaking and improve the lubricity, wear resistance and corrosion resistance of the fiber;

[0021] Step 5: Rope closing: Arrange the ultra-high molecular weight polyethylene central core, composite inner layer strands, filling strands, and outer layer strands twisted in steps 1 to 4 with a wire splitter, deform them through a pre-deformer, introduce them to the same closing point, and twist them with oil. Press the wire rope with a wire pressing die through the closing mouth and eliminate stress through a deformer. At the same time, control the compaction rate to 6%-8%, and the lay length multiple of the wire rope to 6.0 to 6.5 times;

[0022] Step 6: Setting the limiting reinforcement ribs and the filling layer: Setting the limiting reinforcement ribs between two adjacent outer layer strands, and applying the thermosetting resin filling layer after setting the limiting reinforcement ribs;

[0023] Step 7: Preparation of protective layer: a steel mesh layer, a corrosion-resistant layer and a wear-resistant layer are sequentially arranged outside the steel wire rope coated with the thermosetting resin filling layer.

[0024] Preferably, the medium steel wire, the medium thin steel wire and the fan ring steel wire in step two are all subjected to the steel wire processing process in step three.

[0025] Preferably, the sound-proof layer is wrapped between the steel mesh layer and the corrosion-resistant layer.

[0026] The beneficial effects of the present invention are as follows: the high-strength steel wire rope provided by the present invention, firstly, adopts ultra-high molecular weight polyethylene fiber as the central core, combined with the process of three-time twisting and heat setting, so that the central core exhibits higher tensile strength, good structural stability and excellent fatigue resistance when subjected to high loads, greatly improving the bearing capacity and service life of the steel wire rope. Secondly, the design of the composite inner layer strand adopts a spiral twisting structure of a high-strength aramid fiber core and multiple steel wires, which not only enhances the tensile strength of the steel wire rope, but also improves its fatigue resistance, and can effectively reduce the risk of wear and breakage during long-term use. In addition, the coordination of the limiting reinforcement ribs and the filling layer arranged on the outside of the outer layer strand not only reduces the friction between the strands and reduces wear, but also plays a role in preventing loosening, thereby improving the durability and safety of the steel wire rope. At the same time, the outer protective layer composed of the steel wire mesh layer, the corrosion-resistant layer and the wear-resistant layer not only enhances the anti-loosening performance of the steel wire rope, but also fully protects the steel wire rope from corrosion and wear in harsh environments, thereby extending its service life. Therefore, the high-strength steel wire rope of the present invention can meet the requirements of high strength and high durability and has a long service life.

[0027] The present invention also provides a method for manufacturing a high-strength steel wire rope. First, the production of the ultra-high molecular weight polyethylene fiber center core is carried out through multiple twisting and heat setting treatments, which not only enhances the strength and morphological stability of the fiber, but also improves its tensile properties and fatigue resistance. The composite inner layer strands are made of high-strength aramid fibers, which are further improved in tensile strength and wear resistance after treatment. The outer layer strands are made of high-quality galvanized steel wires, which have excellent corrosion resistance and good surface finish, ensuring the long-term stability of the steel wire rope in harsh environments. At the same time, the polyester fiber of the filling strands is treated by twisting, heat setting and grease impregnation to enhance the fiber's wear resistance, lubricity and corrosion resistance. The design of the limiting reinforcement ribs effectively reduces the friction between the strands of the steel wire rope, avoids looseness and deformation, and further improves the tensile strength and structural stability of the steel wire rope. The setting of the thermosetting resin filling layer not only improves the overall tightness of the steel wire rope, but also enhances its compressive resistance and impact resistance. The outer protective layer is protected by the steel wire mesh layer, the corrosion-resistant layer and the wear-resistant layer, so that the steel wire rope has stronger anti-loosening, wear-resistant and corrosion-resistant capabilities, thereby extending the service life of the steel wire rope. Therefore, the steel wire rope prepared by the manufacturing method of the high-strength steel wire rope of the present invention has higher load-bearing capacity, stronger fatigue resistance, excellent corrosion resistance and longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of a high-strength steel wire rope described in the present invention.

[0029] Figure ID

[0030] 10-ultra-high molecular weight polyethylene center core, 20-composite inner layer strands, 30-filling strands, 40-outer layer strands, 50-limiting reinforcement ribs, 60-filling layer, 71-wire mesh layer, 72-silent layer, 73-corrosion-resistant layer, 74-wear-resistant layer. DETAILED DESCRIPTION

[0031] The embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] refer to Figure 1 As shown, this embodiment provides a high-strength steel wire rope, including an ultra-high molecular weight polyethylene central core 10, a plurality of composite inner layer strands 20, a plurality of filling strands 30, a plurality of outer layer strands 40, a plurality of limiting reinforcing ribs 50, a filling layer 60 and an outer protective layer, the ultra-high molecular weight polyethylene central core 10 is twisted by ultra-high molecular weight polyethylene fibers twisted three times and heat-set, the outer side of the ultra-high molecular weight polyethylene central core 10 is spirally twisted with the composite inner layer strands 20, the composite inner layer strands 20 include a high-strength aramid fiber core and a plurality of steel wires spirally twisted on the outer side of the high-strength aramid fiber core, The outer side of the composite inner layer strand 20 is spirally twisted with the outer layer strand 40, and the limiting reinforcement rib 50 is arranged on the side of two adjacent outer layer strands 40 away from the composite inner layer strand 20, and the outer side of the outer layer strand 40 and the limiting reinforcement rib 50 is wrapped with the outer protective layer, and the outer protective layer includes a wire mesh layer 71, a corrosion-resistant layer 73 and a wear-resistant layer 74, wherein the filling strand 30 is arranged in the gap between the composite inner layer strand 20 and the outer layer strand 40, and the filling layer 60 is filled in the gap between the outer layer strand 40, the limiting reinforcement rib 50 and the outer protective layer.

[0033] Preferably, a silent layer 72 is further provided between the steel wire mesh layer 71 and the corrosion-resistant layer 73, and the silent layer 72 includes a first rubber layer and a second rubber layer, and the first rubber layer and the second rubber layer both include a rubber plane layer and a plurality of arc-shaped protrusions provided on the rubber plane layer, and the arc-shaped protrusions of the first rubber layer and the second rubber layer are relatively staggered. In the present application, the staggered arrangement of the arc-shaped protrusions on the first rubber layer and the second rubber layer can effectively disperse and absorb mechanical vibration and impact force, reduce the transmission of noise, and provide a quieter use environment. The silent layer 72 not only improves the comfort during use, but also prolongs the service life of the steel wire rope and reduces the environmental impact caused by noise.

[0034] Preferably, the composite inner layer strand 20 comprises a high-strength aramid fiber core, a plurality of medium-thin steel wires, a plurality of medium-thin steel wires and a plurality of fan-ring steel wires, the medium-thin steel wires are twisted spirally on the outside of the high-strength aramid fiber core, the medium-thin steel wires and the medium-thin steel wires are twisted on the outside of the medium-thin steel wires, the medium-thin steel wires and the medium-thin steel wires are staggered, and the fan-ring steel wires are arranged on the outside of the medium-thin steel wires and the medium-thin steel wires. The composite inner layer strand 20 described in the present invention significantly improves the tensile strength and fatigue resistance of the steel wire rope through the combination of the high-strength aramid fiber core and the plurality of steel wires. The high-strength aramid fiber core provides excellent strength and stability and can effectively withstand high loads. The medium-thin steel wires are twisted spirally on the outside of the high-strength aramid fiber core to increase the overall tensile resistance and wear resistance. The staggered arrangement of the medium-thin steel wires and the medium steel wires optimizes the structural arrangement between the steel wires, reduces friction and wear, and improves the durability and stability of the steel wire rope. Finally, the twisting design of the fan ring steel wire further enhances the tensile strength of the wire rope, while making the composite inner layer strands 20 and the composite inner layer strands 20 and the outer layer strands 40 more tightly bonded, making the wire rope more resistant to loosening and ensuring the safety and reliability of the wire rope during long-term use.

[0035] Preferably, the outer layer strands 40 include a central strand core, a plurality of middle layer thick steel wires spirally twisted in surface contact on the outside of the central strand core, and a fan ring steel wire spirally twisted in surface contact on the outside of the middle layer thick steel wire; the central strand core includes a central steel wire and a plurality of inner layer thick steel wires spirally twisted in surface contact on the outside of the strand core steel wire. The outer layer strands 40 of the present application enable the composite inner layer strands 20 and the outer layer strands 40 to be tightly combined, effectively improving the anti-loosening performance of the steel wire rope, and ensuring the structural stability and safety in long-term use. At the same time, it also ensures that the steel wire rope can work stably under high load and harsh environment, has higher tensile strength, fatigue resistance and corrosion resistance, and improves the comprehensive performance of the steel wire rope.

[0036] Preferably, the filling strand 30 is a polyester fiber filling strand 30 fully impregnated with grease, and the polyester fiber filling strand 30 is twisted from polyester fibers that are twisted twice and heat-set. The wear resistance and lubricity of the filling strand 30 are effectively improved, the friction inside the steel wire rope is reduced, and it helps to reduce wear and extend the service life. The grease-impregnated polyester fiber filling strand 30 also enhances the corrosion resistance of the steel wire rope, and can better protect the internal structure in harsh environments, ensuring that the steel wire rope works stably for a long time. At the same time, through the twisting and heat-setting processes, the stability and shape of the filling strand 30 are better maintained, further improving the compressive strength and impact resistance of the steel wire rope. This makes the steel wire rope perform well in applications with high strength, high durability and harsh environments.

[0037] Preferably, the limiting reinforcement rib 50 comprises two two-thirds circular ring structures which are connected to each other and symmetrically arranged, and the two two-thirds circular ring structures are respectively fitted on the two adjacent outer strands 40. The friction between the strands of the steel wire rope is effectively reduced, and the combination with the filling layer 60 prevents the steel wire rope from becoming loose and deformed during use. The symmetrically arranged circular ring structures not only improve the stability and durability of the steel wire rope, but also ensure that the steel wire rope can maintain good structural stability and safety under high load and long-term use. In addition, the design of the limiting reinforcement rib 50 effectively improves the overall fatigue resistance of the steel wire rope and reduces the performance degradation caused by long-term wear.

[0038] Preferably, the filling layer 60 is a thermosetting resin filling layer 60. After curing, the thermosetting resin filling layer 60 has excellent pressure resistance, impact resistance and deformation resistance, and can effectively improve the compressive strength and impact resistance of the steel wire rope. In addition, the thermosetting resin filling layer 60 can also fill the gaps between the outer strands 40 to ensure the tightness and stability of the steel wire rope during use, thereby effectively preventing the occurrence of looseness.

[0039] The present invention provides a high-strength steel wire rope. First, ultra-high molecular weight polyethylene fiber is used as the central core. Combined with the process of three-twisting and heat setting, the central core exhibits higher tensile strength, good structural stability and excellent fatigue resistance when subjected to high loads, greatly improving the bearing capacity and service life of the steel wire rope. Secondly, the design of the composite inner layer strand 20 adopts a spiral twisting structure of a high-strength aramid fiber core and multiple steel wires, which not only enhances the tensile strength of the steel wire rope, but also improves its fatigue resistance, and can effectively reduce the risk of wear and breakage during long-term use. In addition, the coordination of the limiting reinforcement rib 50 and the filling layer 60 arranged on the outside of the outer layer strand 40 not only reduces the friction between the strands and reduces wear, but also plays a role in preventing loosening, thereby improving the durability and safety of the steel wire rope. At the same time, the outer protective layer composed of the steel wire mesh layer 71, the corrosion-resistant layer 73 and the wear-resistant layer 74 not only enhances the anti-loosening performance of the steel wire rope, but also fully protects the steel wire rope from corrosion and wear in harsh environments, thereby extending its service life. Therefore, the high-strength steel wire rope of the present invention can meet the requirements of high strength and high durability and has a long service life.

[0040] The present application also provides a method for manufacturing a high-strength steel wire rope, which is used to manufacture the above-mentioned high-strength steel wire rope, and comprises the following steps:

[0041] Step 1, making the ultra-high molecular weight polyethylene central core 10: First, select ultra-high molecular weight polyethylene fibers that meet the requirements as raw materials, and select the fiber specification of 2400D, and the strength is not less than 40g / d; the selected fibers are grouped and evenly arranged to ensure that the fiber directions are consistent, and then the ultra-high molecular weight polyethylene fibers are subjected to the first twisting treatment, and the twist range is set to 10 to 14 twists / meter, and at the same time, a tension of 0.05 to 0.15g / tex is applied to each fiber to achieve structural compactness and strength uniformity of the first twisted fibers; during the first twisting process, heat setting treatment is carried out simultaneously, and the heat setting temperature is set to 50 to 70°C to ensure that the fiber molecular chains are rearranged under the action of tension and high temperature, thereby improving the morphological stability and strength of the fibers;

[0042] The fibers that have completed the initial twisting enter the second twisting stage. During the first twisting process, the fiber bundles that have been twisted for the first time are further twisted, with a twist range of 8 to 12 twists / m. At the same time, a tension of 0.18 to 0.25 g / tex is applied to each fiber that has been twisted for the first time to ensure that the fibers that have been twisted for the second time have higher structural uniformity and strength. During the second twisting process, heat setting treatment is carried out simultaneously, and the heat setting temperature is set at 50 to 70°C to further optimize the arrangement structure of the fiber molecular chains.

[0043] After the second twisting, the fiber is twisted for the third time. The twist range of the third twisting is adjusted to 6-10 twists / m. At the same time, a higher intensity of tension is applied, ranging from 0.25 to 0.35 g / tex, to further improve the tensile performance and structural strength of the center core. During the third twisting process, heat setting treatment is carried out simultaneously, and the temperature is set at 50-70°C to ensure the long-term stability of the twisted shape.

[0044] Finally, the fibers that have completed the three twistings are woven into an ultra-high molecular weight polyethylene central core 10. During the weaving process, a tension of 0.35 to 0.45 g / tex is applied to the ultra-high molecular weight polyethylene central core 10 to ensure uniform force on the fiber bundles and tightness of the weaving structure during the weaving process. During the weaving process, the ultra-high molecular weight polyethylene central core 10 is subjected to overall heat setting treatment, and the heat setting temperature is set at 60 to 70° C. to further stabilize its internal molecular structure and improve the shape retention and strength of the central core.

[0045] In this step, the structural uniformity and strength of the ultra-high molecular weight polyethylene central core 10 are significantly improved through the three-twisting and heat setting process, ensuring that it still has excellent morphological stability under high-intensity tension. The first twisting uses a twist of 10 to 14 twists / m and applies a tension of 0.05 to 0.15 g / tex, which can ensure the compactness and strength uniformity of the fiber and meet the basic strength requirements. Through the second twisting (twist 8 to 12 twists / m, tension 0.18 to 0.25 g / tex), the molecular arrangement of the fiber is further optimized and the consistency of the structure is improved. The third twisting (twist 6 to 10 twists / m, tension 0.25 to 0.35 g / tex) further strengthens the tensile performance of the central core, ensuring that it still has excellent tensile strength and stability under high tension. The heat setting treatment is carried out simultaneously throughout the process (temperature range 50 to 70 ° C), which not only helps the rearrangement of the molecular chain, improves the morphological stability and strength of the fiber, but also enhances the long-term stability of the overall structure. During the weaving process, the tension is controlled between 0.35 and 0.45 g / tex, which ensures the tightness and uniformity of the weaving structure and further improves the overall performance of the product. Therefore, the processing in this step makes the ultra-high molecular weight polyethylene central core 10 have obvious advantages in mechanical properties, durability and stability, and is suitable for application scenarios requiring high strength, high stability and long life.

[0046] Step 2: Preparation of the composite inner layer strand 20: Select high-strength aramid fiber as raw material, wash it to remove surface impurities; place the washed aramid fiber in a lithium chloride methanol solution with a mass fraction of 10% to 20%, set the solution temperature to 30 to 50°C, and perform swelling treatment under stirring for 40 to 60 minutes to enhance the surface activity of the fiber and its bonding ability with subsequent materials; place the swelled aramid fiber in a silane coupling agent ethanol solution with a mass fraction of 5% to 10%, and set the reaction temperature to The temperature is set at 40-70°C, and the reaction time is 1-2 hours. After the reaction is completed, the fiber surface is cleaned with deionized water to remove unreacted residual substances to obtain modified aramid fiber. The modified aramid fiber is subjected to the first twisting treatment, and the twist range is 10-14 twists / m. During the twisting process, a tension of 0.05-0.15 g / tex is applied, and a heat setting treatment is simultaneously performed. The heat setting temperature is controlled at 50-70°C to enhance the morphological stability and preliminary mechanical properties of the twisted fiber. The first twisted aramid fiber is completed. Entering the second twisting stage, the twist range is set to 8-12 twists / m, and a tension of 0.15-0.25g / tex is applied, and heat setting treatment is carried out simultaneously. The heat setting temperature is controlled at 50-70°C to further optimize the molecular orientation of the fiber and improve the structural uniformity and strength. The third twisting is carried out on the fiber after the second twisting, and the twist range is adjusted to 6-10 twists / m. At the same time, a higher tension range of 0.25-0.35g / tex is applied, and heat setting treatment is carried out simultaneously. The heat setting temperature is controlled at 50-70°C. The temperature is set to 70℃ to ensure the tensile performance and long-term stability of the fiber; the fibers that have completed the three twists are woven into a high-strength aramid fiber core, and a tension of 0.35 to 0.45 g / tex is applied to the high-strength aramid fiber core during the weaving process to ensure uniform force on the fibers and tightness of the weaving structure during the weaving process; during the weaving process, the high-strength aramid fiber core is subjected to overall heat setting treatment, and the heat setting temperature is set to 70℃ to further stabilize its internal molecular structure and improve the shape retention and strength of the high-strength aramid fiber core;

[0047] Finally, the outer side of the braided high-strength aramid fiber core is uniformly and spirally coated with medium-thin steel wires; then, multiple medium-thin steel wires and multiple medium-thin steel wires are sequentially and spirally staggered coated on the outer side of the medium-thin steel wires; then, the fan ring steel wires are coated on the outer side of the medium-thin steel wires and the medium-thin steel wires;

[0048] In step 2, the strength, stability and durability of the composite inner layer strand 20 are significantly improved through fiber modification and multiple twisting processes. First, the treatment with lithium chloride methanol solution and silane coupling agent not only enhances the surface activity of the aramid fiber, but also improves its bonding ability with subsequent materials, providing a solid foundation for subsequent fiber twisting. In the twisting process, through three twisting treatments (twists are 10-14 twists / m, 8-12 twists / m, and 6-10 twists / m) and the gradual increase of tension (0.05-0.15g / tex to 0.25-0.35g / tex), the molecular arrangement and structural uniformity of the fiber are optimized, the tensile performance and morphological stability of the fiber are improved, and the stability of the composite inner layer strand 20 under high-intensity tension is ensured. Especially in the heat setting process, the molecular structure of the fiber is further optimized, which significantly enhances the tensile strength and durability of the fiber. During the weaving process, by controlling the tension of the fiber (0.35-0.45 g / tex), the compactness and uniformity of the structure of the composite inner layer strand 20 are ensured, and the strength and stability of the inner layer strand are further improved. Finally, a spiral coating process is used to coat the outer surface of the aramid fiber core with a multilayer structure of medium-fine steel wire, medium steel wire and fan ring steel wire, which not only enhances the overall strength of the composite inner layer strand 20, but also improves its tensile properties and wear resistance, ensuring its durability and reliability in high-intensity working environments. Therefore, this step effectively improves the comprehensive performance of the composite inner layer strand 20, making it suitable for applications requiring high strength and high stability.

[0049] Step 3, preparation of outer strand 40: first select carbon steel that meets the requirements, immerse it in a pickling solution for pickling treatment to remove surface oxides and impurities; after pickling, use deionized water to clean the surface of the steel wire, and place it in a drying device, the drying temperature is set to 100℃~120℃, the drying time is 15~20 minutes, to ensure that the surface of the steel wire is dry and free of residue; then, use a wire drawing machine to draw the carbon steel for the first time, control the drawing temperature at 140℃~160℃, and adjust the drawing speed to 3~4m / s; this step draws the carbon steel into the required initial diameter to ensure that it has basic dimensional accuracy and initial mechanical properties; send the steel wire that has undergone the initial wire drawing treatment into a degreasing cleaning tank for cleaning to remove oil and impurities that may remain during the drawing process; the cleaned steel wire is treated in a dryer, and the drying temperature is set to 90℃~110℃ to ensure that the surface of the steel wire There is no moisture residue on the surface; then, the steel wire enters the plating liquid tank for plating treatment, the mass fraction of the plating liquid is 8% to 12%, and the plating time is 10 to 15 seconds; after the plating is completed, the steel wire enters the zinc pot for galvanizing, the zinc liquid temperature is controlled between 440℃ and 460℃, and the galvanizing line speed is adjusted to 25 to 28m / minute to form a uniform and dense galvanized layer and enhance the corrosion resistance of the steel wire; the galvanized steel wire is sent to the secondary wire drawing machine for drawing, the compression rate is controlled at 75% to 85%, and 6 to 8 drawing processes are selected according to the final diameter requirements to gradually adjust the diameter of the steel wire; the drawing temperature is strictly controlled between 150℃ and 165℃, and the drawing speed is adjusted to 3.5 to 4.5m / s to ensure that the surface of the steel wire is smooth and the internal structure is uniform; in order to avoid the accumulation of processing stress, the steel wire is cooled by air cooling after each drawing, and the cooling time is 8 to 12 seconds;

[0050] Finally, the treated steel wires are arranged on the stranding machine through the wire distribution plate, and after being sprayed with oil, they are pressed by the wire pressing steel die through the closing mouth, and then collected on the I-shaped wheel to obtain the required outer layer strands 40, and at the same time, the stress of the strands is effectively eliminated through the deformer; during the stranding process, the compression rate of the outer layer strands 40 is controlled to be 10%, the twist length multiple is controlled to be 8, and the oiling method is the strand spraying method;

[0051] In step three, first, the surface oxides and impurities of carbon steel are removed by pickling treatment to ensure the purity of the steel wire and lay the foundation for the smooth progress of subsequent processes. During the wire drawing process, the drawing temperature (140℃~160℃) and the drawing speed (3~4m / s) are strictly controlled to ensure the dimensional accuracy and mechanical properties of the steel wire. At the same time, a uniform and dense galvanized layer is formed through the plating treatment and galvanizing process (zinc liquid temperature 440℃~460℃, galvanizing speed 25~28m / min), which significantly improves the corrosion resistance and service life of the steel wire. After the secondary wire drawing (drawing temperature 150℃~165℃, compression rate 75%~85%, drawing speed 3.5~4.5m / s), the steel wire has a smooth surface and uniform structure, avoiding the accumulation of processing stress and ensuring the stability and reliability of the steel wire. Finally, the compression rate during the twisting process is controlled at 10%, the twist length multiple is 8, and the strands are oiled by spraying oil, which further improves the tensile strength and wear resistance of the outer strands 40, effectively eliminates internal stress, and ensures the long-term stability and performance of the outer strands 40. This ensures the excellent performance of the outer strands 40 in high-strength applications, especially for applications that require high corrosion resistance and strength.

[0052] Step 4: Preparation of filling strands 30: First, select polyester fibers that meet the requirements as raw materials, and ensure that the fibers maintain consistent directions during the arrangement process. Then, perform the first twisting treatment on the polyester fibers, with a twist range of 10 to 14 twists / m. During this process, a tension of 0.1 to 0.3 g / tex is applied to ensure the strength uniformity and structural tightness of the fibers. At the same time, perform heat setting treatment, with the temperature set at 50 to 70°C. The heat treatment rearranges the fiber molecular chains to improve the morphological stability and strength of the fibers. Next, perform the second twisting on the fiber bundles that have been twisted for the first time, with the twist set at 8 to 12 twists / m, and apply a tension of 0.3 to 0.5 g / tex to further improve the structural uniformity and strength of the fibers. During the twisting process, a heat setting treatment is carried out simultaneously at a temperature of 50-70°C to further optimize the arrangement structure of the fiber molecular chain; subsequently, the fibers that have completed the secondary twisting are woven into filling strands 30, and during the weaving process, a tension of 0.2-0.4 g / tex is applied to the filling strands 30 to ensure the strength uniformity and structural stability of the filling strands 30. During the weaving process, the filling strands 30 are subjected to an overall heat setting treatment, and the heat setting temperature is set to 70°C to further stabilize its internal molecular structure and improve the shape retention and strength of the filling strands 30; subsequently, the woven fabric is soaked in grease for 5-15 minutes, and the grease soaking temperature can be 40-60°C to ensure uniform grease soaking and improve the lubricity, wear resistance and corrosion resistance of the fiber;

[0053] In this step, first, the polyester fiber maintains a consistent direction during the arrangement process, and the structural compactness and strength uniformity of the fiber are ensured by the first twisting (twist 1014 twists / m, tension 0.1-0.3g / tex). The simultaneous heat setting treatment promotes the rearrangement of the fiber molecular chain, thereby improving the morphological stability and strength of the fiber. The second twisting (twist 8-12 twists / m, tension 0.3-0.5g / tex) further enhances the structural uniformity and overall strength of the fiber, while continuing to perform heat setting to optimize the arrangement of the fiber molecular chain. After being woven into the filling strand 30, the applied tension (0.2-0.4g / tex) ensures the strength uniformity of the fiber bundle, and further stabilizes its molecular structure and morphological retention through overall heat setting. Finally, the impregnation treatment of the filling strand 30 in grease significantly improves the lubricity, wear resistance and corrosion resistance of the fiber, ensuring the long-term stability and excellent performance of the filling strand 30 in practical applications, especially the durability in high friction and high corrosion environments is further enhanced.

[0054] Step 5: Rope closing: Arrange the ultra-high molecular weight polyethylene central core 10, composite inner layer strands 20, filling strands 30, and outer layer strands 40 twisted in steps 1 to 4 with a splitter, deform them through a pre-deformer, introduce them into the same closing point, and twist them with oil. Press the steel wire rope with a wire pressing die through the closing mouth and eliminate the stress through a deformer. At the same time, control the compaction rate to 6%-8%, and the lay multiple of the steel wire rope to 6.0 to 6.5 times; by controlling the compaction rate during rope closing within the range of 6% to 8%, and setting the lay multiple to 6.0 to 6.5 times, ensure that the steel wire rope has good toughness and durability during stretching or use.

[0055] Step 6: Setting the limiting reinforcement rib 50 and the filling layer 60: Setting the limiting reinforcement rib 50 between two adjacent outer strands 40, and applying the thermosetting resin filling layer 60 after setting the limiting reinforcement rib 50;

[0056] Step 7: Preparation of protective layer: A steel mesh layer 71, a corrosion-resistant layer 73 and a wear-resistant layer 74 are sequentially arranged outside the steel wire rope coated with the thermosetting resin filling layer 60.

[0057] Preferably, the medium steel wire, the medium fine steel wire and the fan ring steel wire in step two are all subjected to the steel wire processing process in step three. Ensure that all steel wires contained in the steel wire rope of the present application have consistent performance and quality during drawing, galvanizing and subsequent processing. Specifically, the steel wire that has undergone processes such as pickling, degreasing, plating assistance and galvanizing can obtain a uniform and dense surface coating, thereby improving its corrosion resistance and durability. In addition, by controlling the drawing process (including drawing temperature, speed and compression rate), the dimensional accuracy, surface finish and uniformity of the internal structure of the steel wire can be ensured, so that it has better mechanical properties and stability when used at high intensity.

[0058] Preferably, the sound-proof layer 72 is provided between the steel mesh layer 71 and the corrosion-resistant layer 73. The sound-proof layer 72 plays a role in slowing down the propagation of noise, reducing friction and reducing the vibration effect during use.

[0059] The present invention also provides a method for manufacturing a high-strength steel wire rope. First, the production of the ultra-high molecular weight polyethylene fiber center core is carried out through multiple twisting and heat setting treatments, which not only enhances the strength and morphological stability of the fiber, but also improves its tensile properties and fatigue resistance. The composite inner layer strand 20 adopts high-strength aramid fiber, and after treatment, its tensile strength and wear resistance are further improved. The outer layer strand 40 adopts high-quality galvanized steel wire, which has excellent corrosion resistance and good surface finish, ensuring the long-term stability of the steel wire rope in harsh environments. At the same time, the polyester fiber of the filling strand 30 is twisted, heat-set and grease-impregnated to enhance the wear resistance, lubricity and corrosion resistance of the fiber. The design of the limiting reinforcing rib 50 effectively reduces the friction between the strands of the steel wire rope, avoids looseness and deformation, and further improves the tensile strength and structural stability of the steel wire rope. The setting of the thermosetting resin filling layer 60 not only improves the overall tightness of the steel wire rope, but also enhances its compressive resistance and impact resistance. The outer protective layer is protected by the steel mesh layer 71, the corrosion-resistant layer 73 and the wear-resistant layer 74, so that the steel wire rope has stronger anti-loosening, wear-resistant and corrosion-resistant capabilities, thereby extending the service life of the steel wire rope. Therefore, the steel wire rope prepared by the manufacturing method of the high-strength steel wire rope of the present invention has higher load-bearing capacity, stronger fatigue resistance, excellent corrosion resistance and longer service life.

[0060] The above disclosure is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A high-strength steel wire rope, characterized in that: The invention comprises an ultra-high molecular weight polyethylene central core, multiple composite inner layer strands, multiple filling strands, multiple outer layer strands, multiple limiting reinforcement ribs, a filling layer and an outer protective layer, wherein the ultra-high molecular weight polyethylene central core is twisted by ultra-high molecular weight polyethylene fibers twisted three times and heat-set, the outer side of the ultra-high molecular weight polyethylene central core is spirally twisted with the composite inner layer strands, the composite inner layer strands comprise a high-strength aramid fiber core and multiple steel wires spirally twisted on the outer side of the high-strength aramid fiber core, the outer side of the composite inner layer strands is spirally twisted with the outer layer strands, the limiting reinforcement ribs are arranged on the side of two adjacent outer layer strands away from the composite inner layer strands, the outer side of the outer layer strands and the limiting reinforcement ribs is wrapped with the outer protective layer, the outer protective layer comprises a steel mesh layer, a corrosion-resistant layer and a wear-resistant layer, wherein the filling strands are arranged in the gap between the composite inner layer strands and the outer layer strands, and the filling layer is filled in the gap between the outer layer strands, the limiting reinforcement ribs and the outer protective layer.

2. The high-strength steel wire rope according to claim 1, characterized in that: A soundproofing layer is also arranged between the steel mesh layer and the corrosion-resistant layer, and the soundproofing layer includes a first rubber layer and a second rubber layer. The first rubber layer and the second rubber layer both include a rubber plane layer and a plurality of arc-shaped protrusions arranged on the rubber plane layer. The arc-shaped protrusions of the first rubber layer and the second rubber layer are relatively staggered.

3. The high-strength steel wire rope according to claim 1, characterized in that: The composite inner layer strands include a high-strength aramid fiber core, a plurality of medium-thin steel wires, a plurality of medium steel wires and a plurality of fan-ring steel wires. The medium-thin steel wires are spirally twisted on the outside of the high-strength aramid fiber core, the medium-thin steel wires and the medium steel wires are twisted on the outside of the medium-thin steel wires, the medium-thin steel wires and the medium steel wires are staggered, and the fan-ring steel wires are arranged on the outside of the medium-thin steel wires and the medium steel wires.

4. The high-strength steel wire rope according to claim 1, characterized in that: The outer layer strands include a central strand core, a plurality of middle layer thick steel wires spirally twisted in surface contact on the outside of the central strand core, and fan ring steel wires spirally twisted in surface contact on the outside of the middle layer thick steel wires; the central strand core includes a central steel wire and a plurality of inner layer thick steel wires spirally twisted in surface contact on the outside of the strand core steel wire.

5. The high-strength steel wire rope according to claim 1, characterized in that: The filling strands are polyester fiber filling strands fully soaked with grease, and the polyester fiber filling strands are twisted from polyester fibers that are twisted twice and heat-set.

6. The high-strength steel wire rope according to claim 1, characterized in that: The position-limiting reinforcement rib comprises two two-thirds circular ring structures which are connected to each other and symmetrically arranged, and the two two-thirds circular ring structures are respectively arranged on the two adjacent outer strands.

7. The high-strength steel wire rope according to claim 1, characterized in that: The filling layer is a thermosetting resin filling layer.

8. A method for manufacturing a high-strength steel wire rope, suitable for manufacturing the high-strength steel wire rope as claimed in any one of claims 1 to 7, characterized in that: include: Step 1, production of ultra-high molecular weight polyethylene central core: First, select ultra-high molecular weight polyethylene fibers that meet the requirements as raw materials, and select fiber specifications of 2400D with a strength of not less than 40g / d; the selected fibers are grouped and evenly arranged to ensure that the fiber directions are consistent, and then the ultra-high molecular weight polyethylene fibers are subjected to the first twisting treatment, with the twist range set to 10 to 14 twists / meter, and at the same time, a tension of 0.05 to 0.15g / tex is applied to each fiber to achieve structural compactness and uniform strength of the first twisted fibers; during the first twisting process, heat setting treatment is carried out simultaneously, and the heat setting temperature is set to 50 to 70°C to ensure that the fiber molecular chains are rearranged under the action of tension and high temperature, thereby improving the morphological stability and strength of the fibers; The fibers that have completed the initial twisting enter the second twisting stage. During the first twisting process, the fiber bundles that have been twisted for the first time are further twisted, with a twist range of 8 to 12 twists / m. At the same time, a tension of 0.18 to 0.25 g / tex is applied to each fiber that has been twisted for the first time to ensure that the fibers that have been twisted for the second time have higher structural uniformity and strength. During the second twisting process, heat setting treatment is carried out simultaneously, and the heat setting temperature is set at 50 to 70°C to further optimize the arrangement structure of the fiber molecular chains. After the second twisting, the fiber is twisted for the third time. The twist range of the third twisting is adjusted to 6-10 twists / m. At the same time, a higher intensity of tension is applied, ranging from 0.25 to 0.35 g / tex, to further improve the tensile performance and structural strength of the center core. During the third twisting process, heat setting treatment is carried out simultaneously, and the temperature is set at 50-70°C to ensure the long-term stability of the twisted shape. Finally, the fibers that have completed the three twists are woven into an ultra-high molecular weight polyethylene central core. During the weaving process, a tension of 0.35 to 0.45 g / tex is applied to the ultra-high molecular weight polyethylene central core to ensure uniform force on the fiber bundles and tightness of the weaving structure. During the weaving process, the ultra-high molecular weight polyethylene central core is subjected to overall heat setting treatment, and the heat setting temperature is set at 60 to 70°C to further stabilize its internal molecular structure and improve the shape retention and strength of the central core. Step 2: Preparation of composite inner strands: Select high-strength aramid fiber as raw material and clean it to remove surface impurities; The cleaned aramid fiber is placed in a lithium chloride methanol solution with a mass fraction of 10% to 20%, the solution temperature is set to 30 to 50°C, and a swelling treatment is performed under stirring for 40 to 60 minutes to enhance the surface activity of the fiber and its bonding ability with subsequent materials; the aramid fiber after swelling treatment is placed in a silane coupling agent ethanol solution with a mass fraction of 5% to 10%, the reaction temperature is set to 40 to 70°C, and the reaction time is 1 to 2 hours; after the reaction is completed, the fiber surface is cleaned with deionized water to remove unreacted residual substances to obtain modified aramid fiber; the modified aramid fiber is subjected to the first twisting treatment, the twist range is 10 to 14 twists / m, a tension of 0.05 to 0.15 g / tex is applied during the twisting process, and the fiber is subjected to the first twisting treatment. The fiber is subjected to heat setting treatment, and the heat setting temperature is controlled at 50-70°C to enhance the morphological stability and preliminary mechanical properties of the twisted fiber. The aramid fiber that has completed the first twisting enters the second twisting stage, and the twist range is set to 8-12 twists / m. At the same time, a tension of 0.15-0.25g / tex is applied, and heat setting treatment is carried out simultaneously. The heat setting temperature is controlled at 50-70°C to further optimize the molecular orientation of the fiber and improve the structural uniformity and strength. The fiber is subjected to the third twisting, and the twist range is adjusted to 6-10 twists / m. At the same time, a higher tension range of 0.25-0.35g / tex is applied, and heat setting treatment is carried out simultaneously. The heat setting temperature is set to 70°C to ensure the tensile performance and long-term stability of the fiber. The fibers that have completed three twists are woven into a high-strength aramid fiber core. During the weaving process, a tension of 0.35 to 0.45 g / tex is applied to the high-strength aramid fiber core to ensure uniform force on the fibers and tightness of the weaving structure. During the weaving process, the high-strength aramid fiber core is subjected to overall heat setting treatment at a temperature of 70°C to further stabilize its internal molecular structure and improve the shape retention and strength of the high-strength aramid fiber core. Finally, the outer side of the braided high-strength aramid fiber core is uniformly and spirally coated with medium-thin steel wires; then, multiple medium-thin steel wires and multiple medium-thin steel wires are sequentially and spirally staggered coated on the outer side of the medium-thin steel wires; then, the fan ring steel wires are coated on the outer side of the medium-thin steel wires and the medium-thin steel wires; Step 3, preparation of outer strands: First, select carbon steel that meets the requirements, immerse it in a pickling solution for pickling treatment to remove surface oxides and impurities; after pickling, use deionized water to clean the surface of the steel wire, and place it in a drying device, the drying temperature is set to 100℃~120℃, the drying time is 15~20 minutes, to ensure that the surface of the steel wire is dry and free of residue; then, use a wire drawing machine to draw the carbon steel for the first time, control the drawing temperature at 140℃~160℃, and adjust the drawing speed to 3~4m / s; this step draws the carbon steel into the required initial diameter to ensure that it has basic dimensional accuracy and initial mechanical properties; send the steel wire that has undergone the initial wire drawing treatment into a degreasing cleaning tank for cleaning to remove oil and impurities that may remain during the drawing process; the cleaned steel wire is treated in a dryer, and the drying temperature is set to 90℃~110℃ to ensure the surface of the steel wire No water residue; then, the steel wire enters the plating solution tank for plating treatment, the mass fraction of the plating solution is 8% to 12%, and the plating time is 10 to 15 seconds; after the plating is completed, the steel wire enters the zinc pot for galvanizing, the zinc liquid temperature is controlled between 440℃ and 460℃, and the galvanizing line speed is adjusted to 25 to 28m / minute to form a uniform and dense galvanized layer and enhance the corrosion resistance of the steel wire; the galvanized steel wire is sent to the secondary wire drawing machine for drawing, the compression rate is controlled at 75% to 85%, and 6 to 8 drawing processes are selected according to the final diameter requirements to gradually adjust the diameter of the steel wire; the drawing temperature is strictly controlled between 150℃ and 165℃, and the drawing speed is adjusted to 3.5 to 4.5m / s to ensure that the surface of the steel wire is smooth and the internal structure is uniform; in order to avoid the accumulation of processing stress, the steel wire is cooled by air cooling after each drawing, and the cooling time is 8 to 12 seconds; Finally, the treated steel wires are arranged on the stranding machine through the wire distribution plate, and after being sprayed with oil, they are pressed by the wire pressing steel die through the closing mouth, and then collected on the I-shaped wheel to obtain the required outer strands. At the same time, the stress of the strands is effectively eliminated through the deformer; during the stranding process, the compression rate of the outer strands is controlled to be 10%, the twist length multiple is controlled to be 8, and the oiling method is the strand spraying method; Step 4: Preparation of filling strands: First, select polyester fibers that meet the requirements as raw materials, and ensure that the fibers maintain consistent directions during the arrangement process. Then, the polyester fibers are twisted for the first time, with a twist range of 10 to 14 twists / m. During this process, a tension of 0.1 to 0.3 g / tex is applied to ensure the strength uniformity and structural tightness of the fibers. At the same time, a heat setting treatment is performed, with the temperature set at 50 to 70°C. The heat treatment rearranges the fiber molecular chains and improves the morphological stability and strength of the fibers. Next, the fiber bundles that have been twisted for the first time are twisted for the second time, with the twist set at 8 to 12 twists / m, and a tension of 0.3 to 0.5 g / tex is applied to further improve the structural uniformity and strength of the fibers. During the second twisting process, heat setting treatment is carried out simultaneously at a temperature of 50-70°C to further optimize the arrangement structure of the fiber molecular chain; then, the fibers that have completed the second twisting are woven into filling strands, and a tension of 0.2-0.4 g / tex is applied to the filling strands during the weaving process to ensure the strength uniformity and structural stability of the filling strands. During the weaving process, the filling strands are subjected to overall heat setting treatment, and the heat setting temperature is set to 70°C to further stabilize its internal molecular structure and improve the shape retention and strength of the filling strands; then, the woven fabric is soaked in grease for 5-15 minutes, and the grease soaking temperature can be 40-60°C to ensure uniform grease soaking and improve the lubricity, wear resistance and corrosion resistance of the fiber; Step 5: Rope closing: Arrange the ultra-high molecular weight polyethylene central core, composite inner layer strands, filling strands, and outer layer strands twisted in steps 1 to 4 with a wire splitter, deform them through a pre-deformer, introduce them to the same closing point, and twist them with oil. Press the wire rope with a wire pressing die through the closing mouth and eliminate stress through a deformer. At the same time, control the compaction rate to 6%-8%, and the lay length multiple of the wire rope to 6.0 to 6.5 times; Step 6: Setting the limiting reinforcement ribs and the filling layer: Setting the limiting reinforcement ribs between two adjacent outer layer strands, and applying the thermosetting resin filling layer after setting the limiting reinforcement ribs; Step 7: Preparation of protective layer: a steel mesh layer, a corrosion-resistant layer and a wear-resistant layer are sequentially arranged outside the steel wire rope coated with the thermosetting resin filling layer.

9. The method for manufacturing a high-strength steel wire rope according to claim 8, characterized in that: The medium steel wire, the medium thin steel wire and the fan ring steel wire in step two are all subjected to the steel wire processing process in step three.

10. The method for manufacturing a high-strength steel wire rope according to claim 8, characterized in that: The sound-proof layer is wrapped between the steel mesh layer and the corrosion-resistant layer.

Images