Copper wire tinned copper rod

Abstract

The utility model relates to the technical field of copper rods, in particular to a copper rod with a tinned copper wire. In order to solve the problems that a traditional copper rod is easy to oxidize and poor in corrosion resistance, an existing tinned copper rod is not firm in coating combination and not strong in protection system, complex processing and changeable use environments are difficult to cope with, and the stability, reliability and service life of a cable are seriously affected, the following technical scheme is provided: the tinned copper rod comprises a central reinforced core; the center strengthening core serves as a core framework of the copper rod, and the structural stability is guaranteed. The inner buffer layer is deposited on the outer side of the central reinforced core and is used for absorbing energy, relieving stress and preventing the central reinforced core and the outer layer structure from being damaged due to rigid collision; and the micro-arc oxidation pretreatment layer is arranged on the outer side of the inner buffer layer. The cable provided by the utility model has the advantages of high mechanical performance, firm coating combination, comprehensive protection, capability of resisting various severe environments and external force wear, self-cleaning, antibacterial, mildew-proof and ultraviolet-resistant properties, greatly prolonged service life and expanded application scene.

Description

TECHNICAL FIELD

[0001] The utility model relates to copper pole technical field especially relates to a copper wire tinned copper pole. BACKGROUND

[0002] In today's rapid development of science and technology era, as the key carrier of power transmission and signal conduction, the performance of copper pole as the basic material directly concerns the stability and reliability of the whole system. The traditional copper pole has inherent defects such as easy oxidation and poor corrosion resistance, although the tinning process alleviates the problem to a certain extent, but the existing tinned copper pole still has many deficiencies. On the one hand, the coating and the copper pole base body are not combined closely, and the tinning layer is easy to peel off in the subsequent complex processing process such as multiple wire drawing, stranded wire and bending forming, which affects the quality of cable products; on the other hand, in the face of complex and changeable use environment, it is difficult to resist the erosion of multiple adverse factors such as humidity, salt spray, high temperature and mechanical friction, resulting in a big discount of cable life. In view of this, the utility model provides a kind of copper wire tinned copper pole. SUMMARY

[0003] The utility model aims at the problems of copper pole in the background art, such as easy oxidation, poor corrosion resistance, poor combination of existing tinned copper layer, weak protection system, difficult to cope with complex processing and variable use environment, and seriously affect the stability, reliability and life of cable, and provides a kind of copper wire tinned copper pole.

[0004] The utility model discloses a technical scheme: a kind of copper wire tinned copper pole, including center strengthening core, the center strengthening core as the core framework of copper pole, guarantee structural stability;Deposited in the inner buffer layer of the outer side of the center strengthening core, the inner buffer layer is used to absorb energy, relieve stress, prevent the center strengthening core and outer layer structure from being damaged due to rigid collision;Micro-arc oxidation pretreatment layer is arranged in the outer side of the inner buffer layer, the outer side of the micro-arc oxidation pretreatment layer is attached with tinning main layer, the micro-arc oxidation pretreatment layer is used to enhance the structural firmness of tinning main layer and internal structure, and the tinning main layer is used to provide stable and reliable corrosion protection for copper pole in all directions;Alloy transition layer is deposited in the outer side of the tinning main layer, and the alloy transition layer greatly enhances the toughness, hardness and anti creep performance of the tinning main layer;Nanometer composite protective layer is arranged in the outer side of the alloy transition layer, and the nanometer composite protective layer blocks the penetration and erosion of harmful factors from outside to internal structure;Outer woven reinforcing layer is wound in the outer side of the nanometer composite protective layer, and the outer woven reinforcing layer is used to improve the tensile strength and tear resistance of copper pole;Abrasion-resistant self-repairing coating is sprayed on the outer side of the outer woven reinforcing layer, and the abrasion-resistant self-repairing coating is used to protect the copper pole from further wear and tear.

[0005] Optionally, the center reinforced core is tightly twisted by high-strength and high-conductivity beryllium bronze wires, the wire diameter is between 0.05mm and 0.15mm, and the twisting pitch is between 5mm and 10mm.

[0006] Optionally, the inner buffer layer is a rubber elastic body plating layer with a thickness of 0.005mm to 0.02mm, which is deposited by a chemical plating process.

[0007] Optionally, the micro-arc oxidation pretreatment layer is a dense ceramic oxide film with a thickness of 0.01mm to 0.03mm, which is generated by a micro-arc oxidation technology.

[0008] Optionally, the tin-plated main layer is plated by a double-pulse electroplating process, and the thickness is 0.05mm to 0.15mm.

[0009] Optionally, the alloy transition layer is a tin-bismuth-silver alloy layer with a thickness of 0.003mm to 0.01mm, which is deposited by a vacuum sputtering method.

[0010] Optionally, the nano-composite protective layer is selected from a nano-titanium dioxide, a nano-zinc oxide and an organic silicone resin composite system, formed by dipping and curing, and the thickness is 0.005mm to 0.015mm.

[0011] Optionally, the outer woven reinforcing layer is mixed and woven by high-strength aramid fibers and carbon fibers at a ratio of 3:1 to 5:1, tightly wound outside the nano-composite protective layer at a weaving angle of 45° to 60°, to form a protective layer with a thickness of 0.03mm to 0.08mm.

[0012] Optionally, the wear-resistant self-repairing coating is a polyurethane coating containing microencapsulated repair agents, formed by a spraying process, and the thickness is 0.002mm to 0.008mm.

[0013] In summary, the present application includes at least one of the following beneficial technical effects:

[0014] The multi-layer composite structure of the present application gradually progresses from the inside to the outside, and fully enhances the performance of the copper rod in all directions. No matter it faces high-strength mechanical stress, harsh chemical environment or frequent physical friction, it can ensure the long-term stable operation of the copper rod, greatly prolong the service life of the cable, and the combination of the center reinforced core and the inner buffer layer lays a strong mechanical foundation for the copper rod, buffers external impact, protects the integrity of the internal structure, and optimizes the conditions for subsequent plating layer adhesion.

[0015] Further, the micro-arc oxidation pretreatment layer and the alloy transition layer are treated at the same time, the coating adhesion and the comprehensive protection performance are improved significantly, the foundation for fine processing and reliable protection is built, the nanometer composite protection layer uses the characteristics of nanometer material, realizes self-cleaning, antibacterial and mildew-proof, anti-ultraviolet and other multi-protection, expands the application scene of the copper rod, and the outer braided reinforcing layer and the wear-resistant self-repairing coating cooperate, effectively resist mechanical external force and daily wear and tear, and maintain the long-term stability of the appearance and electrical performance of the copper rod.

[0016] In summary, the utility model has higher mechanical properties, firm coating adhesion, comprehensive protection, can resist various harsh environments and external force wear, and can also self-clean, antibacterial and mildew-proof, anti-ultraviolet, greatly prolong the service life of the cable, and expand the application scene. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structure schematic diagram of a copper wire tinned copper rod is given;

[0018] Figure 2 For Figure 1 A cross-sectional structure schematic diagram.

[0019] Reference signs:

[0020] 1, center reinforcing core; 2, inner buffer layer; 3, micro-arc oxidation pretreatment layer; 4, tinned main layer; 5, alloy transition layer; 6, nanometer composite protection layer; 7, outer braided reinforcing layer; 8, wear-resistant self-repairing coating. DETAILED DESCRIPTION

[0021] The technical solutions of the utility model will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments.

[0022] The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model.

[0023] Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, construct and operate in a particular orientation, therefore, it cannot be understood as the limitation of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, construct and operate in a particular orientation, therefore, it cannot be understood as the limitation of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0026] Embodiment:

[0027] As Figure 1 and Figure 2 The utility model discloses a copper wire tinned copper pole, including center strengthening core 1, center strengthening core 1 adopts high strength, high conductivity beryllium bronze wire tight lay and is formed, and the wire diameter is between 0.05mm~0.15mm, and the lay pitch is 5mm~10mm. Beryllium bronze has excellent mechanical properties, and the tensile strength can be 30%~50% higher than ordinary copper material, not only provides strong tensile, torsional support force for the whole copper pole, and its good conductivity ensures that power and signal transmission are not hindered, as the core framework of copper pole, guarantees structural stability.

[0028] Further, the above-mentioned copper pole further includes the inner buffer layer 2 deposited on the outer side of the center strengthening core 1, and the inner buffer layer 2 is a rubber elastomer coating layer with a thickness of 0.005mm~0.02mm, which is deposited by chemical plating process. The rubber elastomer has excellent flexibility and buffering performance, and can effectively absorb energy and relieve stress when the copper pole is subjected to external force impact or temperature change, preventing the center strengthening core 1 and the outer layer structure from being damaged due to rigid impact, and simultaneously filling the fine defects on the surface of the center strengthening core 1 to create good conditions for the subsequent plating layer adhesion.

[0029] Further, the copper rod further comprises a micro-arc oxidation pretreatment layer 3 arranged outside the inner buffer layer 2, and a tin-plated main layer 4 is attached outside the micro-arc oxidation pretreatment layer 3. The micro-arc oxidation pretreatment layer 3 is a dense ceramic oxide film with a thickness of 0.01 mm to 0.03 mm, which is generated by micro-arc oxidation technology. The film is rich in various metal oxides such as aluminum oxide, copper oxide, beryllium oxide, etc. By virtue of its ultra-high hardness and chemical stability, the film deeply purifies the impurities on the surface of the copper rod, and its unique porous microstructure provides a large number of anchoring sites for the tin-plated main layer 4, greatly enhancing the bonding strength of the tin-plated main layer 4 and the internal structure. The tin-plated main layer 4 is plated by double-pulse electroplating process, with a thickness of 0.05 mm to 0.15 mm. Double-pulse electroplating can finely control the deposition rate and distribution state of tin ions according to the precisely set pulse parameters, ensuring that the tin-plated main layer 4 uniformly spreads on the entire surface of the copper rod, with a thickness deviation strictly controlled within ±3%, effectively avoiding local tin accumulation or loss, so that the copper rod can obtain stable and reliable corrosion resistance protection in all directions, significantly resist the erosion of humid, salt mist and other harsh environments, and greatly extend the service life.

[0030] Specifically, the copper rod comprises an alloy transition layer 5 deposited outside the tin-plated main layer 4. The alloy transition layer 5 is a tin-bismuth-silver alloy layer with a thickness of 0.003 mm to 0.01 mm, which is deposited by vacuum sputtering. The introduction of bismuth and silver elements optimizes the crystal structure of the tin-plated main layer 4, refines the grains, and greatly enhances the toughness, hardness and creep resistance of the tin-plated main layer 4, effectively preventing the tin-plated main layer 4 from cracking and peeling during subsequent processing such as drawing and stranding, while further improving the overall corrosion resistance, especially in complex humid environments containing trace amounts of chloride ions, the corrosion resistance is greatly improved compared to a single tin-plated layer.

[0031] Further, the copper rod further comprises a nano-composite protective layer 6 arranged outside the alloy transition layer 5. The nano-composite protective layer 6 is formed by impregnation and curing of a nano-titanium dioxide, nano-zinc oxide and organic silicone resin composite system, with a thickness of 0.005 mm to 0.015 mm. Nano-titanium dioxide and nano-zinc oxide have excellent photocatalytic self-cleaning, antibacterial and mildew-proof, and ultraviolet shielding properties. After being tightly combined with organic silicone resin, they not only form a strict chemical barrier to block the penetration and erosion of harmful external factors such as water vapor, oxygen and microorganisms on the internal coating and core structure of the copper rod, but also decompose pollutants such as oil and dust that may be contaminated on the surface of the copper rod by photocatalytic reaction, always keeping the surface of the copper rod clean and maintaining good electrical performance.

[0032] Further, the copper rod comprises an outer woven reinforcing layer 7 wound outside the nanocomposite protective layer 6, which is made of high-strength aramid fiber and carbon fiber mixed at a ratio of 3:1-5:1, and is tightly wound outside the nanocomposite protective layer 6 at a weaving angle of 45°-60° to form a protective layer with a thickness of 0.03mm-0.08mm. The aramid fiber gives the copper rod super-strong tensile strength and tear resistance, and the carbon fiber provides excellent rigidity and wear resistance. The two are woven together to provide all-round protection for the copper rod from mechanical external forces such as stretching, bending, scratching, etc. during handling, laying and long-term use, ensuring that the appearance and internal structure of the copper rod are intact.

[0033] Finally, the copper rod also comprises a wear-resistant self-repairing coating 8 sprayed on the outer side of the outer woven reinforcing layer 7, which is made of a polyurethane coating containing microencapsulated repair agent, and is formed by spraying process with a thickness of 0.002mm-0.008mm. In the daily use of the copper rod, once the coating surface is scratched or worn, the microcapsules will rupture and release the repair agent to automatically fill and repair the damaged part, restoring the integrity of the coating. At the same time, the polyurethane itself has good wear resistance and flexibility, and cooperates with the microcapsules to continuously protect the copper rod from further wear and tear, maintaining long-term stable protection effect.

[0034] In this embodiment, during use, the central reinforcing core 1 not only provides strong tensile and torsional support for the overall copper rod, but also ensures that power and signal transmission are not hindered due to its good electrical conductivity, serving as the core framework of the copper rod and ensuring structural stability. The inner buffer layer 2 has excellent flexibility and buffering performance, and can effectively absorb energy and relieve stress when the copper rod is subjected to external force impact or temperature changes, preventing the central reinforcing core 1 and the outer layer structure from being damaged due to rigid impact, while filling in the fine defects on the surface of the central reinforcing core 1 to create good conditions for subsequent coating adhesion. The micro-arc oxidation pretreatment layer 3 has ultra-high hardness and chemical stability, deeply purifying the surface impurities of the copper rod, and its unique porous microstructure provides a large number of anchoring sites for the tin plating main layer 4, greatly enhancing the bonding strength of the tin plating main layer 4 and the internal structure. The tin plating main layer 4 effectively avoids local tin accumulation or loss, enabling the copper rod to obtain stable and reliable corrosion resistance protection in all directions, significantly resisting the erosion of harsh environments such as humidity and salt mist, and greatly extending the service life. The alloy transition layer 5 greatly enhances the toughness, hardness, and creep resistance of the tin plating main layer 4, effectively preventing the tin plating main layer 4 from cracking and peeling during subsequent processing such as drawing and twisting, while further improving the overall corrosion resistance, especially in complex humid environments containing trace amounts of chloride ions, the corrosion resistance is greatly improved compared to a single tin plating layer. The nano-composite protective layer 6 has excellent photocatalytic self-cleaning, antibacterial and mildew-proof, and ultraviolet shielding properties, not only can form a strict chemical barrier to block the penetration and erosion of harmful external factors such as water vapor, oxygen, and microorganisms on the internal coating and the core structure of the copper rod, but also uses photocatalytic reaction to decompose pollutants such as oil and dust that may be contaminated on the surface of the copper rod, keeping the surface of the copper rod clean and maintaining good electrical performance. The outer woven reinforcing layer 7 gives the copper rod super strong tensile strength and tear resistance, and the carbon fiber provides excellent rigidity and wear resistance, both of which are woven together to protect the copper rod from mechanical damage such as stretching, bending, and scratching during handling, laying, and long-term use, ensuring that the appearance and internal structure of the copper rod are intact. The wear-resistant self-repairing coating 8, once the coating surface is scratched or worn during daily use, the microcapsules rupture and release the repair agent, automatically filling and repairing the damaged area, restoring the integrity of the coating, while the polyurethane itself has good wear resistance and flexibility, working together with the microcapsules to continuously protect the copper rod from further wear and tear, maintaining long-term stable protection effect.

[0035] The above specific embodiments are only optional embodiments of the present application, and based on the technical solutions of the present application and the related inspiration of the above embodiments, those skilled in the art can make various alternative improvements and combinations on the above specific embodiments.

Claims

1. A copper wire tinned copper rod characterized by, The application relates to a copper rod with a novel structure, which comprises the following parts: a central reinforcing core (1) serving as the core framework of the copper rod and guaranteeing structural stability; an inner buffer layer (2) deposited on the outer side of the central reinforcing core (1) and used for absorbing energy and relieving stress; a micro-arc oxidation pretreatment layer (3) arranged on the outer side of the inner buffer layer (2) and attached with a tin-plated main layer (4) on the outer side; an alloy transition layer (5) deposited on the outer side of the tin-plated main layer (4); a nano-composite protective layer (6) arranged on the outer side of the alloy transition layer (5) and used for blocking the penetration and corrosion of harmful external factors on the internal structure; an outer woven reinforcing layer (7) wound on the outer side of the nano-composite protective layer (6) and used for improving the tensile strength and tear resistance of the copper rod; and a wear-resistant self-repairing coating (8) sprayed on the outer side of the outer woven reinforcing layer (7). The central reinforcing core (1) is tightly twisted by beryllium bronze wires with high strength and high conductivity, the wire diameter is 0.05mm-0.15mm, and the twisting pitch is 5mm-10mm. The inner buffer layer (2) is a rubber elastic body coating with a thickness of 0.005mm-0.02mm and is deposited through a chemical plating process. The micro-arc oxidation pretreatment layer (3) is a dense ceramic oxide film with a thickness of 0.01mm-0.03mm and is generated by using a micro-arc oxidation technology. The tin-plated main layer (4) is plated by using a double-pulse plating process and has a thickness of 0.05mm-0.15mm. The alloy transition layer (5) is a tin-bismuth-silver alloy layer with a thickness of 0.003mm-0.01mm and is deposited by using a vacuum sputtering method. The nano-composite protective layer (6) is formed by dipping and curing a nano-titanium dioxide, a nano-zinc oxide and an organic silicone resin composite system and has a thickness of 0.005mm-0.015mm. The outer woven reinforcing layer (7) is formed by mixing high-strength aramid fibers and carbon fibers at a ratio of 3:1-5:1, tightly winding the outer woven reinforcing layer (7) on the outer side of the nano-composite protective layer (6) at a weaving angle of 45 DEG -60 DEG, and forming a protective layer with a thickness of 0.03mm-0.08mm.

2. A copper wire tinned copper rod as set forth in claim 1 wherein, The wear-resistant self-repairing coating (8) is a polyurethane coating containing microencapsulated repairing agents, is formed by using a spraying process, and has a thickness of 0.002mm-0.008mm.

3. The copper wire tinned copper rod of claim 2, wherein, ​ 4. The copper wire tinned copper rod of claim 3, wherein, ​ 5. A copper wire tinned copper rod as set forth in claim 4 wherein, ​ 6. A copper wire tinned copper rod as set forth in claim 5 wherein, ​ 7. A copper wire tinned copper rod as set forth in claim 6 wherein, ​ 8. The copper wire tinned copper rod of claim 7, wherein, ​ 9. A copper wire tinned copper rod as set forth in claim 8 wherein, ​

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