A production system for aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire

By coating anticorrosion oil on aluminum-clad steel core aluminum stranded wire and stranding high-conductivity aluminum wire, combined with automated fixing and control units, the problem of insufficient conductivity and durability of aluminum-clad steel core aluminum stranded wire is solved, and an efficient and low-cost production process is achieved, and product performance and consistency is improved.

CN119400519BActive Publication Date: 2025-08-22GUANGDONG SHINE CABLES
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Patent Information

Application Number
CN202411541252.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-08-22
Estimated Expiration
2044-10-31

AI Technical Summary

Technical Problem

The existing aluminum-clad steel core aluminum stranded wires have insufficient balance of conductivity and durability, high-cost manufacturing processes and environmental adaptability limitations.

Method used

Anticorrosion oil is used to coat the outer layer of the aluminum-clad steel core and twist high-conductivity aluminum wires, combined with automated fixing modules and control units to ensure the tension control of the aluminum-clad steel wire during uniform coating and twisting, and uniform coating and drying units are used to achieve uniform coating and rapid drying of the anticorrosion oil.

Benefits of technology

The conductivity and corrosion resistance of aluminum-clad steel core aluminum stranded wire are improved, the production process is optimized, costs are reduced, and production efficiency and product consistency are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a system for manufacturing aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire. Compared with the prior art, the system for manufacturing aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire of the present invention includes a coating module for coating the outside of the aluminum-clad steel core with anti-corrosion oil, a stranding machine for stranding high-conductivity aluminum wire to the outside of the anti-corrosion layer to obtain the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire, and a fixing module for fixing and tensioning the aluminum-clad steel core and the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire during the manufacturing process. The system of the present invention achieves the goal of stranding high-conductivity aluminum wire to the aluminum-clad steel core treated with anti-corrosion oil, forming an aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire with excellent electrical conductivity and excellent corrosion resistance, thereby improving the overall performance and durability of the cable and meeting the high-standard industrial application requirements. At the same time, the automated manufacturing system optimizes the production process and improves the overall production efficiency and output of the manufacturing system.
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Description

Technical Field

[0001] The present invention relates to the field of aluminum stranded wire production systems, and in particular to a production system for an aluminum-clad steel core anti-corrosion high-conductivity aluminum stranded wire. Background Art

[0002] Aluminum-clad steel-core aluminum stranded wire (ALSCR) is a composite conductive wire that combines a high-strength steel core with pure aluminum or aluminum alloy layers. It is widely used in power transmission lines. This wire effectively balances weight and electrical efficiency by leveraging the mechanical strength of the steel core and the excellent electrical conductivity of the aluminum layers. Its production process involves straightening and cleaning the steel wire, hot-extrusion coating with aluminum, and the necessary anti-corrosion treatment to ensure corrosion resistance and long-term environmental adaptability. Due to its excellent physical and electrical properties, ALSCR is widely used in high-voltage and ultra-high-voltage transmission lines, particularly for long-span transmission lines or in areas with harsh environments.

[0003] This experimental team has been browsing and studying a large number of relevant records and materials on the relevant technologies for the production of aluminum-clad steel core aluminum stranded wire for a long time. At the same time, relying on relevant resources and conducting a large number of relevant experiments, after a large number of searches, it was found that there are existing technologies such as CN114864136A, CN113035457B, CN115862941A, and CN106680957B disclosed in the prior art. For example, a method for preparing aluminum-clad steel core aluminum alloy stranded wire disclosed in the prior art is to provide an aluminum-clad steel core aluminum alloy stranded wire with an aluminum-clad steel core provided on the wire core. The aluminum-clad steel core aluminum alloy stranded wire is formed by twisting a wire and an aluminum alloy wire arranged on the periphery of the wire core. The performance of the aluminum-clad steel wire used meets the following conditions: tensile strength ≥1850MPa; elongation at break ≥2.5%; elongation after break ≥2.0%; torsion ≥20 turns; the aluminum alloy wire used is cast online stably after an aluminum-magnesium-silicon alloy melt passes through a ceramic filter plate and multi-stage electromagnetic purification, wherein the residual rate of impurities with a particle size of 1μm or more in the aluminum-magnesium-silicon alloy melt after purification is ≤6.2%.

[0004] The present invention is made in order to solve the problems commonly existing in the art, such as the insufficient balance between conductivity and durability, the high cost of the manufacturing process, and the limitation of environmental adaptability. Summary of the Invention

[0005] The purpose of the present invention is to address the deficiencies in the current field and to propose a production system for an aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire.

[0006] In order to overcome the deficiencies of the prior art, the present invention adopts the following technical solutions:

[0007] A system for manufacturing an aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire, the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire comprising aluminum-clad steel wire, an anti-corrosion layer formed by applying anti-corrosion oil to the outer layer of the aluminum-clad steel core and drying it, and a stranded layer formed by stranding high-conductivity aluminum wire with an electrical conductivity of 62.5% IACS or above outside the anti-corrosion layer, wherein the anti-corrosion oil is a solvent-based anti-corrosion oil, a wax-based anti-corrosion oil, a synthetic anti-corrosion oil, and / or a bio-based anti-corrosion oil.

[0008] The production system of the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire includes a coating module for coating anti-corrosion oil on the outside of the aluminum-clad steel core, a stranding machine for stranding high-conductivity aluminum wire to the outside of the anti-corrosion layer to obtain the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire, and a fixing module for fixing and tensioning the aluminum-clad steel core and the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire during the production process.

[0009] Furthermore, the fixing module includes an initial winding device for releasing the aluminum clad steel wire, a final winding device for winding and storing the obtained aluminum clad steel core corrosion-resistant high-conductivity aluminum stranded wire, an initial photoelectric sensor for monitoring the thickness of the aluminum clad steel wire wound on the initial winding device, a final photoelectric sensor for monitoring the thickness of the aluminum clad steel core corrosion-resistant high-conductivity aluminum stranded wire wound on the final winding device, an initial positioning tube horizontally arranged for the aluminum clad steel core corrosion-resistant high-conductivity aluminum stranded wire to pass through, a final positioning tube horizontally arranged for the aluminum clad steel core to pass through, an initial tension sensor for monitoring the tension of the aluminum clad steel core corrosion-resistant high-conductivity aluminum stranded wire entering the initial positioning tube, a final tension sensor for monitoring the tension of the aluminum clad steel wire entering the final positioning tube, a number of support rods for fixing the initial positioning tube and the final positioning tube, and a control unit for controlling the initial winding device and the winding speed of the initial winding device.

[0010] The axis of the initial positioning tube and the axis of the final positioning tube are located on the same horizontal extension line. The final positioning tube and the initial positioning tube ensure that the aluminum-clad steel wire always remains horizontal during the anti-corrosion oil coating and high-conductivity filter wire twisting process.

[0011] Furthermore, the coating module includes an oil supply unit for conveying anti-corrosion oil to the aluminum-clad steel wire, a coating unit for evenly coating the anti-corrosion oil on the aluminum-clad steel wire, and a drying unit for drying and solidifying the anti-corrosion oil on the aluminum-clad steel wire to obtain an anti-corrosion layer.

[0012] Furthermore, the oil inlet unit includes a storage tank for storing anti-corrosion oil, a liquid outlet pipe connected to the storage tank, a liquid pump driving the anti-corrosion oil in the storage tank to flow out of the liquid outlet pipe, a feed nozzle abutting against the outer wall of the aluminum-clad steel wire, and a connecting piece connecting the liquid outlet pipe with the feed nozzle.

[0013] The feed nozzle is flat, and the discharge end of the feed nozzle is arranged close to the top of the aluminum-clad steel wire. Driven by a liquid pump, the anti-corrosion oil flows from the feed nozzle to the aluminum-clad steel wire at a preset flow rate.

[0014] Furthermore, the coating unit includes an outer shell in the shape of a ring, an inner shell in the shape of a ring and coaxially sleeved in the outer shell, a bearing ring with the outer ring fixed to the inner wall of the outer shell and the inner ring fixed to the outer wall of the inner shell, a support frame for supporting and fixing the bottom shell wall of the outer shell, two fixed blocks respectively fixed to the inner shell, a driving mechanism for driving the fixed blocks to move relative to the sleeve shell, and two smear brushes respectively fixed to different fixed blocks.

[0015] Among them, the left and right sides of the inner shell extend and protrude from the left and right sides of the outer shell respectively, the edges of the ring openings on both sides of the inner shell are the left ring opening edge and the right ring opening edge respectively, the two fixed blocks are symmetrically arranged on the right ring opening edge of the inner shell, and the two smear brushes are respectively fixed on different fixed blocks.

[0016] Furthermore, the driving mechanism includes an outer gear ring sleeved on the outer wall of the ring near the left ring opening of the inner shell, a driving gear meshing with the outer gear ring, and a driving motor for driving the driving gear to rotate the shaft.

[0017] Furthermore, the drying unit includes a cylinder coaxially sleeved on the outside of the aluminum-clad steel wire, air outlets sequentially arranged on the cylinder wall, a hot air drying fan connected to each air outlet through an air duct, and a temperature control subunit for controlling the air outlet speed of each air outlet, wherein the temperature control subunit gradually increases the wind speed setting of each air outlet along the conveying direction of the aluminum-clad steel core.

[0018] The beneficial effects achieved by the present invention are:

[0019] 1. The system of the present invention realizes the process of stranding high-conductivity aluminum wire onto an aluminum-clad steel core treated with anti-corrosion oil, forming an aluminum-clad steel core anti-corrosion high-conductivity aluminum stranded wire with excellent electrical conductivity and excellent corrosion resistance, thereby improving the overall performance and durability of the cable, meeting the high-standard industrial application requirements. At the same time, through the automated production system, the production process is optimized, the manpower requirements are reduced, the production costs are lowered, and the overall production efficiency and output of the production system are improved.

[0020] 2. The present invention monitors and adjusts the winding speeds of the primary winding device and the final winding device through a control unit to effectively control the tension of the aluminum-clad steel wire and the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire during the production process, thereby avoiding uneven tension that may cause material relaxation or excessive stretching, affecting the stranding quality and the mechanical properties of the wire, and causing uneven thickness of the product, thereby improving the overall consistency and reliability of the production system.

[0021] 3. The coating module of the present invention realizes efficient and uniform coating and rapid drying of aluminum-clad steel wire by integrating the oil inlet unit, the film coating unit and the drying unit, thereby ensuring the uniformity and curing quality of the anti-corrosion oil layer. This process not only improves the anti-corrosion performance and durability of the aluminum-clad steel wire, but also improves production efficiency and reduces costs by precisely controlling the coating and drying parameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but rather the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0023] Figure 1 This is a modular schematic diagram of the production system of the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire of the present invention.

[0024] Figure 2 It is a partial structural schematic diagram of the coating unit of the present invention.

[0025] Explanation of the accompanying numbers: 1-driving gear; 2-outer gear ring; 3-inner housing; 4-outer housing; 5-support frame; 6-fixing block; 7-apply brush; 8-drive motor. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with its embodiments; it should be pointed out that the specific embodiments described herein are only used to explain the present invention and are not used to limit this case. For those skilled in the art, after reviewing the following detailed description, other systems, methods and / or features of this embodiment will become apparent. In addition, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and cannot be understood as limiting this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0027] Example 1: Combined with the attached Figure 1 and attached Figure 2 This embodiment constructs a system for manufacturing an aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire. The aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire comprises aluminum-clad steel wire, an anti-corrosion layer formed by applying anti-corrosion oil to the outer layer of the aluminum-clad steel core and drying it, and a stranded layer formed by stranding high-conductivity aluminum wire with an electrical conductivity of 62.5% IACS or higher outside the anti-corrosion layer. The anti-corrosion oil can be a solvent-based anti-corrosion oil, a wax-based anti-corrosion oil, a synthetic anti-corrosion oil, and / or a bio-based anti-corrosion oil, without limitation.

[0028] The production system of the aluminum-clad steel core anti-corrosion high-conductivity aluminum stranded wire includes a coating module for coating the aluminum-clad steel core with anti-corrosion oil, a stranding machine for stranding high-conductivity aluminum wire to the outside of the anti-corrosion layer to obtain the aluminum-clad steel core anti-corrosion high-conductivity aluminum stranded wire, and a fixing module for fixing and tensioning the aluminum-clad steel core and the aluminum-clad steel core anti-corrosion high-conductivity aluminum stranded wire during the production process. The stranding machine is a prior art and will not be described in detail here.

[0029] The fixing module includes a primary winding device for releasing the aluminum-clad steel wire, a final winding device for winding and storing the obtained aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire, a primary photoelectric sensor for monitoring the thickness of the aluminum-clad steel wire wound on the primary winding device, a final photoelectric sensor for monitoring the thickness of the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire wound on the final winding device, a primary positioning tube horizontally arranged for the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire to pass through, a final positioning tube horizontally arranged for the aluminum-clad steel core to pass through, a primary tension sensor for monitoring the tension of the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire entering the primary positioning tube, a final tension sensor for monitoring the tension of the aluminum-clad steel wire entering the final positioning tube, a number of support rods for fixing and supporting the primary positioning tube and the final positioning tube respectively, and a control unit for controlling the primary winding device and the winding speed of the primary winding device.

[0030] The axis of the initial positioning tube and the axis of the final positioning tube are located on the same horizontal extension line. The final positioning tube and the initial positioning tube ensure that the aluminum-clad steel wire is always kept horizontal during the anti-corrosion oil coating and high-conductivity filter wire twisting process.

[0031] The system of the present invention realizes the process of stranding high-conductivity aluminum wire onto an aluminum-clad steel core treated with anti-corrosion oil, forming an aluminum-clad steel core anti-corrosion high-conductivity aluminum stranded wire with excellent electrical conductivity and excellent corrosion resistance, thereby improving the overall performance and durability of the cable, meeting the high-standard industrial application requirements, and at the same time optimizing the production process through an automated production system, reducing manpower requirements, lowering production costs, and improving the overall production efficiency and output of the production system.

[0032] Example 2: Combined with the attached Figure 1 and attached Figure 2 In addition to the contents of the above embodiments, the control unit also implements the following operating steps:

[0033] S101: Receive the tension value tens1 obtained by the initial tension sensor at time t and the tension value tens2 obtained by the final tension sensor at time t.

[0034] S102: Receive the thickness value of the aluminum-clad steel wire wound on the primary winding device obtained by the initial photoelectric sensor at time t, and express the three thickness values ​​obtained by the initial photoelectric sensor at the moment before t, time t, and time after t as Ha1, Ha2, and Ha3 respectively.

[0035] The thickness Hs2 of the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire wound on the last winding device monitored by the last photoelectric sensor at time t is received, and the three thickness values ​​obtained by the last photoelectric sensor at the moment before t, time t, and time after t are expressed as Hs1, Hs2, and Hs3 respectively.

[0036] S103: Calculate the tension difference △Tenva of the aluminum-clad steel wire in the production system:

[0037] ΔTenva=tens1-tens2|,

[0038] S104: Calculate and obtain the winding speed difference ΔH:

[0039]

[0040] ΔH=|Hra-Hrs|,

[0041] Hra is the rate of change of the winding speed of the aluminum-clad steel wire of the primary winding device, Hrs is the rate of change of the winding speed of the aluminum-clad steel wire of the final winding device, β and γ are rate of change correction coefficients, β and γ are used to adjust the sensitivity of the rate of change under different thickness values, β and γ are preliminarily set based on historical tests, and further based on a large number of repeated experimental training, β and γ are gradually adjusted to minimize the influence of the winding speed of each layer of the aluminum-clad steel wire and the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire under different winding thicknesses, until β and γ achieve a satisfactory correction effect and the high efficiency and stability of the manufacturing system of the present invention, and obtain the final β and γ.

[0042] S105: Obtain adjustment parameter AMI:

[0043]

[0044] S106: When the AMI is not greater than the preset threshold, the winding speed of the first winding device and the last winding device is maintained.

[0045] When AMI is greater than a preset threshold, the winding speeds of the primary winding device and the final winding device are adjusted, and the winding speed of the primary winding device is adjusted to VNW1, and the winding speed of the final winding device is adjusted to VNW2:

[0046]

[0047] Wherein, Vnew is the adjusted speed, Vcur1 is the winding speed of the initial winding device at time t, Vcur2 is the winding speed of the final winding device at time t, Ttarget1 is the target tension of the aluminum-clad steel wire, Ttarget2 is the target tension of the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire, k is the tension adjustment coefficient, h is the thickness adjustment coefficient, R1 is the cross-sectional diameter length of the aluminum-clad steel wire, R2 is the cross-sectional diameter length of the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire, RF1 is the preset first thickness reference value, and RF2 is the preset second thickness parameter value.

[0048] The preset threshold is the maximum AMI value obtained by those skilled in the art through a large number of repeated experimental trainings under the production standard corresponding to the fixed tension of the fixed module for the aluminum-clad steel wire and the aluminum-clad steel core anti-corrosion high-conductivity aluminum stranded wire.

[0049] Vcur1 and Vcur2 are obtained by encoders on the initial winding device and the final winding device respectively, and R1 and R2 are measured in advance by those skilled in the art.

[0050] The parameters of k and h are initially set based on historical tests. Based on a large number of repeated experimental training, k and h are gradually adjusted to minimize the diameter length difference and tension difference between the aluminum-clad steel wire and the aluminum-clad steel core anti-corrosion high-conductivity aluminum stranded wire until k and h achieve a satisfactory adjustment effect and the high efficiency and stability of the manufacturing system of the present invention, and the final k and h are obtained.

[0051] In this embodiment, those skilled in the art may refer to the above value examples and make adjustments according to actual conditions. In short, the specific value ranges and trends of the above β, γ, RF1, RF2, R1, R2, k, and h will be determined by the designer or operator of the production system according to actual processing requirements and system response, and will not be repeated here.

[0052] The present invention monitors and adjusts the winding speeds of the primary winding device and the final winding device through a control unit to effectively control the tension of the aluminum-clad steel wire and the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire during the production process, thereby avoiding uneven tension that may cause material relaxation or excessive stretching, affecting the stranding quality and the mechanical properties of the wire, and causing uneven thickness of the product, thereby improving the overall consistency and reliability of the production system.

[0053] Example 3: Combined with the Figure 1 and attached Figure 2 In addition to the contents of the above embodiments, the coating module also includes an oil supply unit for delivering anti-corrosion oil to the aluminum-clad steel wire, a coating unit for evenly coating the anti-corrosion oil on the aluminum-clad steel wire, and a drying unit for drying and solidifying the anti-corrosion oil on the aluminum-clad steel wire to obtain an anti-corrosion layer.

[0054] The oil inlet unit includes a storage tank for storing anti-corrosion oil, a liquid outlet pipe connected to the storage tank, a liquid pump driving the anti-corrosion oil in the storage tank to flow out of the liquid outlet pipe, a feed nozzle abutting against the outer wall of the aluminum-clad steel wire, and a connecting piece connecting the liquid outlet pipe and the feed nozzle.

[0055] The feed nozzle is flat, and the discharge end of the feed nozzle is set close to the top of the aluminum-clad steel wire. Driven by the liquid pump, the anti-corrosion oil flows from the feed nozzle to the aluminum-clad steel wire at a preset flow rate.

[0056] The coating unit includes an outer shell in the shape of an annulus, an inner shell in the shape of an annulus and coaxially sleeved in the outer shell, a bearing ring with an outer ring fixed to the inner wall of the outer shell and an inner ring fixed to the outer wall of the inner shell, a support frame for supporting and fixing the bottom shell wall of the outer shell, two fixed blocks respectively fixed to the inner shell, a driving mechanism for driving the fixed blocks to move relative to the sleeve shell, and two smear brushes respectively fixed to different fixed blocks.

[0057] The left and right sides of the inner shell extend and protrude from the left and right sides of the outer shell respectively. The edges of the ring opening on both sides of the inner shell are the left ring opening edge and the right ring opening edge respectively. The driving mechanism includes an outer gear ring sleeved on the outer wall of the ring near the left ring opening edge of the inner shell, a driving gear meshing with the outer gear ring, and a driving motor for driving the driving gear to rotate the shaft.

[0058] The two fixing blocks are symmetrically arranged on the right ring edge of the inner shell, and the two smear brushes are fixed on different fixing blocks respectively.

[0059] Through the driving operation of the driving motor, the inner shell is driven to rotate relative to the outer shell, and then the fixed block and the smear brush are synchronously driven to rotate along the axis of the inner shell, so that the smear brush can evenly spread the anti-corrosion oil on the surface of the aluminum-clad steel wire.

[0060] The drying unit includes a cylinder coaxially sleeved on the outside of the aluminum-clad steel wire, air outlets sequentially arranged on the wall of the cylinder, a hot air drying fan connected to each air outlet through an air duct, and a temperature control subunit for controlling the air outlet speed of each air outlet.

[0061] Along the conveying direction of the aluminum-clad steel core, the temperature control sub-unit gradually increases the wind speed setting of each air outlet. The increasing wind speed setting allows the anti-corrosion oil coating to start the curing process slowly when it is first applied. As the aluminum-clad steel core moves forward, the drying intensity is gradually increased. This progressive drying process helps prevent cracks or uneven curing caused by excessive drying of the coating, thereby improving the consistency and quality of the final product.

[0062] The anti-corrosion oil flows evenly onto the moving aluminum clad steel wire through the feed nozzle. The smear brush fixed on the inner shell rotates with the inner shell to evenly apply the anti-corrosion oil on the surface of the aluminum clad steel wire. The anti-corrosion oil is further dried by the drying unit to completely solidify and form a solid anti-corrosion layer, providing protection for the aluminum clad steel wire.

[0063] The coating module of the present invention realizes efficient and uniform coating and rapid drying of aluminum-clad steel wire by integrating the oil inlet unit, the film coating unit and the drying unit, thereby ensuring the uniformity and curing quality of the anti-corrosion oil layer. This process not only improves the anti-corrosion performance and durability of the aluminum-clad steel wire, but also improves production efficiency and reduces costs by precisely controlling the coating and drying parameters.

[0064] Although the present invention has been described above with reference to various embodiments, it will be appreciated that many changes and modifications may be made without departing from the scope of the present invention. That is, the methods, systems, and devices discussed above are examples. Various configurations may omit, replace, or add various processes or components as appropriate. For example, in alternative configurations, the methods may be performed in an order different from that described, and / or various components may be added, omitted, and / or combined. Moreover, the features described with respect to certain configurations may be combined in various other configurations, such as different aspects and elements of the configurations may be combined in a similar manner. In addition, as technology develops, the elements therein may be updated, i.e., many elements are examples and do not limit the scope of the present disclosure or claims. It will also be appreciated that, after reading the contents of the present invention, a technician may make various changes or modifications to the present invention, and these equivalent changes and modifications also fall within the scope defined by the claims of the present invention.

Claims

1. A system for manufacturing an aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire, the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire comprising aluminum-clad steel wire, an anti-corrosion layer formed by coating an anti-corrosion oil on the outer layer of the aluminum-clad steel core and drying it, and a stranded layer formed by stranding high-conductivity aluminum wire with an electrical conductivity of 62.5% IACS or higher outside the anti-corrosion layer, wherein: The anti-corrosion oil is a solvent-based anti-corrosion oil, a wax-based anti-corrosion oil, a synthetic anti-corrosion oil and / or a bio-based anti-corrosion oil, The manufacturing system of the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire comprises a coating module for coating the outside of the aluminum-clad steel core with anti-corrosion oil, a stranding machine for stranding high-conductivity aluminum wire outside the anti-corrosion layer to obtain the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire, and a fixing module for fixing and tensioning the aluminum-clad steel core and the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire during the manufacturing process. The fixing module includes a primary winding device for releasing the aluminum-clad steel wire, a final winding device for winding and storing the obtained aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire, a primary photoelectric sensor for monitoring the thickness of the aluminum-clad steel wire wound on the primary winding device, a final photoelectric sensor for monitoring the thickness of the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire wound on the final winding device, a primary positioning tube horizontally arranged for the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire to pass through, a final positioning tube horizontally arranged for the aluminum-clad steel core to pass through, a primary tension sensor for monitoring the tension of the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire entering the primary positioning tube, a final tension sensor for monitoring the tension of the aluminum-clad steel wire entering the final positioning tube, a number of support rods for fixing and supporting the primary positioning tube and the final positioning tube respectively, and a control unit for controlling the primary winding device and the winding speed of the primary winding device. The axis of the initial positioning tube and the axis of the final positioning tube are located on the same horizontal extension line, and the final positioning tube and the initial positioning tube ensure that the aluminum-clad steel wire is always kept horizontal during the anti-corrosion oil coating and high-conductivity filter wire twisting process; The control unit implements the following operating steps: S101: Receive the tension value tens1 obtained by the initial tension sensor at time t and the tension value tens2 obtained by the final tension sensor at time t. S102: Receive the thickness value of the aluminum-clad steel wire wound on the primary winding device obtained by the initial photoelectric sensor at time t, and express the three thickness values ​​obtained by the initial photoelectric sensor at the moment before t, time t, and time after t as Ha1, Ha2, and Ha3 respectively. The thickness Hs2 of the aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire wound on the last winding device monitored by the last photoelectric sensor at time t is received, and the three thickness values ​​obtained by the last photoelectric sensor at the moment before t, time t, and time after t are expressed as Hs1, Hs2, and Hs3 respectively. S103: Calculate the tension difference △Tenva of the aluminum-clad steel wire in the production system: , S104: Calculate and obtain the winding speed difference ΔH: , , , Hra is the change rate of the aluminum-clad steel wire winding speed of the primary winding equipment, and Hrs is the change rate of the aluminum-clad steel wire winding speed of the final winding equipment. and is the rate of change correction coefficient, and Used to adjust the sensitivity of the change rate at different thickness values. and Initial parameter value settings are made based on historical tests, and further adjustments are made based on a large number of repeated experimental training. and , in order to minimize the influence of the winding speed of each layer of aluminum-clad steel wire and aluminum-clad steel core corrosion-resistant high-conductivity aluminum stranded wire at different winding thicknesses; S105: Obtain adjustment parameter AMI: , S106: When the AMI is not greater than the preset threshold, the winding speed of the first winding device and the last winding device is maintained. When AMI is greater than a preset threshold, the winding speeds of the primary winding device and the final winding device are adjusted, and the winding speed of the primary winding device is adjusted to VNW1, and the winding speed of the final winding device is adjusted to VNW2: , , Among them, Vnew is the adjusted speed, Vcur1 is the winding speed of the initial winding equipment at time t, Vcur2 is the winding speed of the final winding equipment at time t, Ttarget1 is the target tension of the aluminum-clad steel wire, Ttarget2 is the target tension of the aluminum-clad steel core anti-corrosion high-conductivity aluminum stranded wire, k is the tension adjustment coefficient, h is the thickness adjustment coefficient, R1 is the cross-sectional diameter length of the aluminum-clad steel wire, R2 is the cross-sectional diameter length of the aluminum-clad steel core anti-corrosion high-conductivity aluminum stranded wire, RF1 is the preset first thickness reference value, and RF2 is the preset second thickness reference value.

2. The production system according to claim 1, wherein: The coating module includes an oil supply unit for delivering anti-corrosion oil to the aluminum clad steel wire, a coating unit for evenly coating the anti-corrosion oil on the aluminum clad steel wire, and a drying unit for drying and solidifying the anti-corrosion oil on the aluminum clad steel wire to obtain an anti-corrosion layer.

3. The production system according to claim 2, wherein: The oil inlet unit includes a storage tank for storing anti-corrosion oil, a liquid outlet pipe connected to the storage tank, a liquid pump driving the anti-corrosion oil in the storage tank to flow out of the liquid outlet pipe, a feed nozzle abutting against the outer wall of the aluminum-clad steel wire, and a connecting piece connecting the liquid outlet pipe and the feed nozzle. The feed nozzle is flat, and the discharge end of the feed nozzle is arranged close to the top of the aluminum-clad steel wire. Driven by a liquid pump, the anti-corrosion oil flows from the feed nozzle to the aluminum-clad steel wire at a preset flow rate.

4. The production system according to claim 3, wherein: The coating unit includes an outer shell in the shape of an annulus, an inner shell in the shape of an annulus and coaxially sleeved in the outer shell, a bearing ring with an outer ring fixed to the inner wall of the outer shell and an inner ring fixed to the outer wall of the inner shell, a support frame for supporting and fixing the bottom shell wall of the outer shell, two fixed blocks respectively fixed to the inner shell, a driving mechanism for driving the fixed blocks to move relative to the sleeve shell, and two smear brushes respectively fixed to different fixed blocks. Among them, the left and right sides of the inner shell extend and protrude from the left and right sides of the outer shell respectively, the edges of the ring openings on both sides of the inner shell are the left ring opening edge and the right ring opening edge respectively, the two fixed blocks are symmetrically arranged on the right ring opening edge of the inner shell, and the two smear brushes are respectively fixed on different fixed blocks.

5. The production system according to claim 4, wherein: The driving mechanism includes an outer gear ring sleeved on the outer wall of the ring near the left ring opening of the inner shell, a driving gear meshed with the outer gear ring, and a driving motor for driving the driving gear to rotate the shaft.

6. The production system according to claim 5, wherein: The drying unit includes a cylinder coaxially sleeved on the outside of the aluminum-clad steel wire, air outlets sequentially arranged on the cylinder wall, a hot air drying fan connected to each air outlet through an air duct, and a temperature control subunit for controlling the air outlet speed of each air outlet, wherein the temperature control subunit gradually increases the wind speed setting of each air outlet along the conveying direction of the aluminum-clad steel core.

Citation Information

Patent Citations

  • A low-loss aluminum tube OPGW power optical cable and its manufacturing method

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  • Preparation method of aluminum-clad steel core aluminum alloy stranded wire

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  • High-elongation aluminum-clad steel-cored aluminum stranded wire and manufacturing method thereof

    CN114864136A

  • Aluminum-clad steel core overhead insulated cable and preparation method thereof

    CN115862941A

  • Manufacturing technology for high-intensity clearance ultra heat resisting aluminum alloy lead and ultra heat resisting aluminum alloy

    CN101261890A