A copper clad steel strip hot lamination device

Abstract

The utility model discloses a copper clad steel strip hot compound device relates to the technical field of hot compound manufacturing of composite board, in order to solve the problem of the performance of composite board caused by oxide formation, the device includes the protective atmosphere room, and the both ends of protective atmosphere room are provided with the open feed inlet and discharge port respectively, and the feed inlet is used to provide copper band and preheated steel strip, and the discharge port is equipped with the hot rolling roller group for hot pressing copper band and steel strip, the inner chamber of protective atmosphere room is communicated with the gas pipe group, and the gas pipe group is used for the supplementary ammonia decomposition gas and nitrogen into the protective atmosphere room, and the cooling water pipe group is located in the inner chamber of protective atmosphere room, and the circulating cooling water is passed into the cooling water pipe group, so setting, can effectively isolate oxygen in air, avoids the oxidation reaction of the surface of preheated steel strip in the composite process, thereby the performance of composite board is improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of hot composite manufacturing technology for composite plates, and more specifically, to a hot composite device for copper-clad steel strips. Background Technology

[0002] In existing hot-composite production processes for copper-clad steel composite sheets, the high-strength component sheet (steel) requires preheating before rolling and composite bonding. This preheating step is necessary because the steel needs to reach a certain temperature before bonding to ensure the subsequent bonding effect. However, if the preheated steel surface comes into contact with air, oxides will rapidly form. The presence of these oxides will negatively impact the interfacial bonding quality of the sheets, leading to a decline in the performance of the composite sheet.

[0003] Therefore, how to solve the problem of performance degradation of composite boards caused by oxide formation is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a thermal composite device for copper-clad steel strip, which can effectively isolate oxygen in the air and avoid oxidation reaction on the surface of the preheated steel strip during the composite process, thereby significantly improving the performance of the composite material.

[0005] Another objective of this invention is to provide a thermal bonding method including the above-mentioned copper-clad steel strip thermal bonding device, which can improve the performance of the composite material.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A thermal lamination device for copper-clad steel strip includes:

[0008] The protective atmosphere chamber has an open feed inlet and an open outlet at both ends. The feed inlet is used to supply copper strip and preheated steel strip, and the outlet is equipped with a hot rolling roll assembly for hot pressing copper strip and steel strip.

[0009] The intake pipe assembly is connected to the inner cavity of the protective atmosphere chamber. The intake pipe assembly is used to introduce auxiliary ammonia decomposition gas and nitrogen into the protective atmosphere chamber.

[0010] The cooling water pipe assembly is located inside the protective atmosphere chamber, and circulating cooling water flows through the cooling water pipe assembly.

[0011] Preferably, the protective atmosphere chamber is equipped with an oxygen concentration detector, which is used to monitor the oxygen concentration in the protective atmosphere chamber in real time and send the measured oxygen concentration information to the controller.

[0012] Preferably, it also includes a temperature detector, which is used to monitor the temperature of the protective atmosphere chamber in real time and send the measured temperature information to the controller.

[0013] Preferably, the intake pipe assembly is located on both sides of the protective atmosphere chamber. The intake pipe assembly includes several first intake pipes for providing nitrogen and second intake pipes for providing auxiliary ammonia decomposition gas. The first intake pipes are located in the middle of the protective atmosphere chamber, and the second intake pipes are located at both ends of the protective atmosphere chamber. Both the first and second intake pipes are equipped with solenoid valves for controlling the gas flow rate in the pipes and flow sensors for real-time detection of the gas flow rate in the pipes. The solenoid valves and flow meters are both connected to the controller signal.

[0014] Preferably, ignition devices are provided at both ends of the protective atmosphere chamber.

[0015] Preferably, the protective atmosphere chamber has several openable covers on both sides and the top, and the cooling water pipe assembly is located on the covers.

[0016] Preferably, the cooling water pipe assembly includes an inlet pipe, an outlet pipe, and a circulating water pipe. The two ends of the circulating water pipe are connected to the inlet pipe and the outlet pipe respectively through connectors. The circulating water pipe is arranged in a serpentine shape on the cover plate and is located in the protective atmosphere chamber.

[0017] Preferably, the protective atmosphere chamber is movable along the material transport direction, and the bottom of the protective atmosphere chamber is connected to the pillow block via a support column, with the pillow block sliding along the track.

[0018] Preferably, the hot rolling roll assembly includes an upper pressure roll and a lower pressure roll arranged in a relatively rolling manner.

[0019] Preferably, the upper and lower pressure rollers are provided with cooling channels for introducing coolant.

[0020] The copper-clad steel strip thermal lamination device provided by this utility model includes a protective atmosphere chamber, an air inlet pipe assembly, and a cooling water pipe assembly. Specifically, the two ends of the protective atmosphere chamber are respectively set as an open feed port and a discharge port. The feed port is used to provide copper strip and preheated steel strip, and the discharge port is equipped with a hot rolling roller assembly for hot pressing the copper strip and steel strip. This allows the copper strip and preheated steel strip to continuously enter and leave the protective atmosphere chamber, achieving uninterrupted production, significantly shortening the production cycle, increasing the output per unit time, and improving the thermal lamination production efficiency of composite plates. The air inlet pipe assembly is connected to the inner cavity of the protective atmosphere chamber and is used to supply air into the protective atmosphere chamber. The introduction of auxiliary ammonia decomposition gas and nitrogen effectively isolates oxygen in the air, preventing oxidation of the preheated steel strip surface during the composite process, thereby significantly improving the interfacial bonding quality of the plate. The auxiliary ammonia decomposition gas is converted into hydrogen and nitrogen. The reducing properties of hydrogen effectively prevent oxidation of copper and steel strips at high temperatures, while nitrogen provides a stable inert gas environment, ensuring the hot pressing effect and improving the mechanical properties of the composite plate. The cooling water pipe assembly is located inside the protective atmosphere chamber, and circulating cooling water is introduced into the cooling water pipe assembly, which can effectively control the internal temperature of the protective atmosphere chamber and increase the reliability of the subsequent hot rolling mill assembly for hot composite.

[0021] The copper-clad steel strip thermal composite device configured in the above manner can effectively isolate oxygen in the air by introducing auxiliary ammonia decomposition gas and nitrogen into the protective atmosphere chamber, thereby preventing oxidation reaction on the surface of the preheated steel strip during the composite process and significantly improving the performance of the composite material. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the thermal composite device for copper-clad steel strip provided by this utility model.

[0024] Figure 2 This is a schematic diagram of the thermal composite device for copper-clad steel strip provided by this utility model.

[0025] Figure 3 This is a schematic diagram of the cooling water pipe assembly provided by this utility model.

[0026] Figure 4 This is a flowchart illustrating the steps of the thermal bonding method provided by this utility model.

[0027] Figure label:

[0028] 10 - Copper strip; 20 - Steel strip; 30 - Copper-clad steel strip;

[0029] 1-Protective atmosphere chamber; 11-Cover plate;

[0030] 2-Hot rolling roll group, 21-Upper pressure roll, 22-Lower pressure roll;

[0031] 3-Intake pipe assembly, 31-First intake pipe, 32-Second intake pipe;

[0032] 4-Cooling water pipe assembly, 41-Circulating water pipe, 42-Connector, 43-Placement;

[0033] 5-Ignition device;

[0034] 6-Supporting column;

[0035] 7-Pillow block;

[0036] 8-track. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] It should be noted that the directional terms such as "upper," "middle," and "lower" used below are defined based on the accompanying drawings in the instruction manual.

[0040] The core of this invention is to provide a thermal lamination device for copper-clad steel strip, which can effectively isolate oxygen in the air and prevent oxidation reaction on the surface of the preheated steel strip 20 during the lamination process, thereby significantly improving the performance of the composite material. Another core aspect of this invention is to provide a thermal lamination method including the aforementioned thermal lamination device for copper-clad steel strip, which can further improve the performance of the composite material.

[0041] Please refer to Figure 1 and Figure 2A copper-clad steel strip thermal composite device includes a protective atmosphere chamber 1, an air inlet pipe assembly 3, and a cooling water pipe assembly 4.

[0042] Specifically, the protective atmosphere chamber 1 has open inlets and outlets at both ends. The inlet provides copper strip 10 and preheated steel strip 20, while the outlet is equipped with a hot rolling roll assembly 2 for hot-pressing the copper strip 10 and steel strip 20. This allows the copper strip 10 and preheated steel strip 20 to continuously enter and exit the protective atmosphere chamber 1, achieving uninterrupted production, significantly shortening the production cycle, increasing output per unit time, and improving the efficiency of hot composite panel production. The air inlet pipe assembly 3 is connected to the inner cavity of the protective atmosphere chamber 1 and is used to introduce auxiliary ammonia decomposition gas and nitrogen into the protective atmosphere chamber 1, effectively... Isolating the oxygen in the air prevents oxidation of the preheated steel strip 20 surface during the composite process, thus significantly improving the interfacial bonding quality of the plate. It also assists in the decomposition of ammonia into hydrogen and nitrogen. The reducing properties of hydrogen effectively prevent oxidation of copper strip 10 and steel strip 20 at high temperatures, while nitrogen provides a stable inert gas environment, thereby ensuring the hot pressing effect and improving the mechanical properties of the composite plate. The cooling water pipe group 4 is located inside the protective atmosphere chamber 1, and circulating cooling water is introduced into the cooling water pipe group 4, which can effectively control the internal temperature of the protective atmosphere chamber 1 and increase the reliability of the subsequent hot rolling roll group 2 for hot composite.

[0043] It should be noted that the feed inlet of the protective atmosphere chamber 1 is equipped with a winding mechanism for feeding materials, and the discharge outlet of the protective atmosphere chamber 1 is equipped with a receiving mechanism for receiving materials. The winding mechanism is used to transport the copper strip 10, steel strip 20 and copper strip 10 arranged in an upper, middle and lower position. The steel strip 20 is located in the middle position, and the copper strip 10 is located directly above and below the steel strip 20. The steel strip 20 has been preheated by the heating device before being transported to the protective atmosphere chamber 1.

[0044] The hot rolling roll assembly 2 includes an upper pressure roll 21 and a lower pressure roll 22 arranged in a relatively rolling configuration. The upper pressure roll 21 and lower pressure roll 22 are symmetrically installed at the outlet of the protective atmosphere chamber 1, and are used to press the upper copper strip 10, the middle steel strip 20, and the lower copper strip 10 together to form a copper-clad steel strip. The relatively rolling configuration of the upper pressure roll 21 and lower pressure roll 22 ensures that the copper strip 10 and steel strip 20 are subjected to uniform pressure during the hot lamination process, thereby improving the interfacial bonding quality of the composite material and reducing lamination defects such as delamination and bubbles caused by uneven pressure. By adjusting the gap between the upper pressure roll 21 and lower pressure roll 22, the thickness of the composite material can be precisely controlled, ensuring the dimensional accuracy and performance consistency of the composite material. The relatively rolling design of the upper pressure roll 21 and lower pressure roll 22 allows the lamination process to proceed continuously without frequent interruptions. This continuity significantly improves production efficiency and reduces time losses caused by equipment adjustments or downtime. The upper pressure roller 21 and lower pressure roller 22 can be precisely adjusted through an automated control system, reducing manual intervention and improving the automation and stability of production. By precisely controlling the rolling speed and pressure of the upper and lower pressure rollers 21 and 22, jamming or clogging of materials during the lamination process can be effectively prevented, further improving the safety of the production process. The upper and lower pressure rollers 21 and 22 can be adjusted according to different material properties (such as hardness and thickness), enabling them to adapt to the lamination requirements of various materials. This allows the equipment to be widely used in different industrial fields, improving its versatility.

[0045] Furthermore, the upper pressure roller 21 and the lower pressure roller 22 are provided with cooling channels for introducing coolant, which can effectively reduce the surface temperature of the upper pressure roller 21 and the lower pressure roller 22, avoid overheating of the copper 10 and steel strip 20 due to high temperature, help maintain the stability of material properties during the composite process, reduce material deformation or performance degradation caused by excessive temperature, and thus improve the quality of copper-clad steel strip 30.

[0046] The copper-clad steel strip thermal composite device configured in the above manner can effectively isolate oxygen in the air by introducing auxiliary ammonia decomposition gas and nitrogen gas into the protective atmosphere chamber 1, thereby preventing oxidation reaction on the surface of the preheated steel strip 20 during the composite process and significantly improving the performance of the composite material.

[0047] In the above embodiment, an oxygen concentration detector is provided in the protective atmosphere chamber 1. The oxygen concentration detector is used to monitor the oxygen concentration in the protective atmosphere chamber 1 in real time and send the measured oxygen concentration information to the controller.

[0048] It should be noted that the oxygen concentration detector can monitor the oxygen concentration in the protective atmosphere chamber 1 in real time and accurately, providing real-time data to ensure that the oxygen concentration remains within a strictly controlled range. The oxygen concentration information is sent to the controller for automated control, which can automatically adjust the flow rates of nitrogen and auxiliary ammonia decomposition gas based on real-time data, ensuring a stable gas environment within the protective atmosphere chamber 1, reducing manual intervention, and improving production efficiency. By monitoring the oxygen concentration in real time and adjusting the gas flow rate promptly, oxidation reactions can be effectively prevented on the surface of the preheated steel strip 20 during the composite process, thereby significantly improving the interfacial bonding quality of the sheet and ensuring the stable performance of the composite sheet. Ensuring the stability of the oxygen concentration throughout the composite process helps improve the consistency of the composite sheet quality and reduces product performance differences caused by fluctuations in oxygen concentration. Because it effectively prevents oxidation reactions and reduces defective products caused by oxidation, the product qualification rate is improved, and production costs are reduced.

[0049] In the above case, a temperature detector is also included, which is used to monitor the temperature of the protective atmosphere chamber 1 in real time and send the measured temperature information to the controller.

[0050] Understandably, the temperature detector can monitor temperature changes within the protective atmosphere chamber 1 in real time and accurately, providing precise temperature data for the production process. By sending the temperature information to the controller, automated temperature control within the protective atmosphere chamber 1 is achieved. The controller can automatically adjust the cooling water flow rate of the cooling water pipe assembly 4 or the power of the heating device based on the real-time temperature data, ensuring that the temperature remains within the set range, reducing manual intervention, and improving production efficiency and temperature control stability.

[0051] In the thermal lamination process, temperature stability is crucial to the lamination quality. Real-time monitoring and control of temperature ensures the lamination process occurs under optimal conditions, thereby improving the interfacial bonding strength and overall performance of the composite material and reducing product quality issues caused by temperature fluctuations. Ensuring temperature uniformity and stability throughout the lamination process helps improve the consistency of composite material quality, reduces performance differences due to temperature variations, and enhances product market competitiveness. Precise temperature control avoids damage to equipment caused by excessively high or low temperatures, reducing thermal fatigue and mechanical damage, extending equipment lifespan, and lowering maintenance costs. During thermal lamination, excessively high temperatures may exacerbate oxidation of the steel strip 20, preventing timely hydrogen reduction and reducing bonding quality; excessively low temperatures may lead to insufficient softening of the steel strip 20, affecting the lamination effect. Real-time temperature monitoring and control effectively prevents safety hazards caused by abnormal temperatures, ensuring production safety. A stable temperature environment helps reduce production interruptions and adjustment time caused by temperature fluctuations, improving production continuity and efficiency, and further reducing unit product production costs.

[0052] Based on the above embodiment, the protective atmosphere chamber 1 is provided with several openable cover plates 11 on both sides and top, and the cooling water pipe assembly 4 is provided on the cover plates 11.

[0053] It should be noted that the cover plate 11 is installed on both sides and the top of the protective atmosphere chamber 1 to seal the protective atmosphere chamber 1. Cooling water pipe assemblies 4 are arranged on the cover plate 11 to reduce the temperature of the protective atmosphere chamber 1. The openable cover plate 11 design makes the installation, inspection, and maintenance of equipment inside the protective atmosphere chamber 1 more convenient. Workers can easily open the cover plate 11 and enter the protective atmosphere chamber 1 to operate without a complicated disassembly process, greatly improving equipment maintenance efficiency. This design allows for flexible adjustment of the equipment layout or technical upgrades within the protective atmosphere chamber 1 according to production needs. For example, the cooling water pipe assembly 4 can be easily replaced, new sensors or other auxiliary equipment can be installed to adapt to different production processes or improve production efficiency.

[0054] By placing the cooling water pipe assembly 4 on the cover plate 11, the cooling water can be more evenly distributed across the entire surface of the protective atmosphere chamber 1, thereby improving cooling efficiency. This layout can more effectively remove heat from the protective atmosphere chamber 1, ensuring temperature stability during the thermal bonding process and preventing equipment damage or product quality issues caused by excessive temperature. By installing the cooling water pipe assembly 4 on the cover plate 11, the flow rate and direction of the cooling water can be flexibly adjusted according to the temperature requirements of different areas, achieving more precise temperature control and helping to improve the quality and performance of the composite material. Integrating the cooling water pipe assembly 4 onto the cover plate 11 makes the entire structure of the protective atmosphere chamber 1 more compact, reducing the equipment's footprint and space requirements.

[0055] Please refer to Figure 3 The cooling water pipe assembly 4 includes an inlet pipe, an outlet pipe, and a circulating water pipe 41. The two ends of the circulating water pipe 41 are connected to the inlet pipe and the outlet pipe respectively through connectors 42. The circulating water pipe 41 is arranged in a serpentine shape on the cover plate 11 and is located in the protective atmosphere chamber 1.

[0056] Understandably, the circulating water pipe 41 is secured to the cover plate 11 by a pad 43 and is arranged in a serpentine pattern. Both ends of the circulating water pipe 41 are connected to corresponding inlet and outlet pipes via connectors 42, which are located on the cover plate 11. The inlet and outlet pipes are used to transport cooling water to the circulating water pipe 41 to remove heat from the cover plate 11 and the protective atmosphere chamber 1, thus reducing their operating temperature. The serpentine arrangement of the circulating water pipe 41 significantly increases the contact area between the cooling water pipe and the interior of the protective atmosphere chamber 1, allowing the cooling water to more fully absorb heat from the protective atmosphere chamber 1. By continuously removing heat from the protective atmosphere chamber 1, more efficient heat exchange is achieved, effectively reducing the temperature of the protective atmosphere chamber 1. This ensures that the temperature within the protective atmosphere chamber 1 remains within the optimal process range, reducing production interruptions or quality problems caused by temperature fluctuations and improving production efficiency. The serpentine layout of the circulating water pipe 41 allows for uniform distribution of cooling water within the protective atmosphere chamber 1, avoiding localized overheating or insufficient cooling, ensuring a more uniform temperature distribution throughout the entire protective atmosphere chamber 1, and providing a stable temperature environment for the thermal bonding process. During production, if it is necessary to pause or restart the equipment, the serpentine circulating water pipe 41 can quickly reduce the temperature of the protective atmosphere chamber 1, allowing it to reach the required cooling state more quickly, reducing the equipment's cooling and startup time, and further improving production efficiency.

[0057] Furthermore, the intake pipe assembly 3 is located on both sides of the protective atmosphere chamber 1. The intake pipe assembly 3 includes several first intake pipes 31 for providing nitrogen and second intake pipes 32 for providing auxiliary ammonia decomposition gas. The first intake pipes 31 are located in the middle of the protective atmosphere chamber 1, and the second intake pipes 32 are located at both ends of the protective atmosphere chamber 1. Both the first intake pipes 31 and the second intake pipes 32 are equipped with solenoid valves for controlling the gas flow rate in the pipes and flow sensors for real-time detection of the gas flow rate in the pipes. The solenoid valves and flow meters are both connected to the controller signal.

[0058] It should be noted that the first inlet pipe 31 and the second inlet pipe 32 are symmetrically installed on both sides of the protective atmosphere chamber 1 to provide high-concentration nitrogen and ammonia decomposition gas. The first inlet pipe 31 is located in the middle of the protective atmosphere chamber 1 to ensure that the nitrogen entering the protective atmosphere chamber 1 can fully blow out the oxygen inside. The second inlet pipe 32 is located at both ends of the protective atmosphere chamber 1, close to the inlet and outlet of the protective atmosphere chamber 1, to form an air seal. This prevents outside air from entering the protective atmosphere chamber 1 from both ends, thus affecting the gas composition inside the protective atmosphere chamber 1. This layout allows the gas to be evenly distributed throughout the protective atmosphere chamber 1, ensuring that the copper strip 10 and steel strip 20 are always in a good protective gas environment during the composite process, further improving the consistency of product quality.

[0059] Furthermore, the first inlet pipe 31 and the second inlet pipe 32 respectively provide nitrogen and auxiliary ammonia decomposition gas, and each is equipped with a solenoid valve, which can independently control the flow rate of the two gases. This ensures that the gas flow rate can be precisely adjusted under different stages and conditions to meet the different gas flow rate requirements of the composite process. The flow sensor can detect the gas flow rate in the pipe in real time and feed the data back to the controller. The controller automatically adjusts the opening of the solenoid valve based on the real-time data to achieve precise flow control and avoid production problems caused by flow fluctuations. By precisely controlling the flow rates of nitrogen and auxiliary ammonia decomposition gas, the stability of the gas environment in the protective atmosphere chamber 1 can be ensured, avoiding incomplete oxidation or reduction reactions caused by unstable gas flow rates. This improves the interfacial bonding quality and overall performance of the composite board, thereby increasing the product qualification rate and reducing production costs.

[0060] The solenoid valve is connected to the controller, enabling automatic control and emergency shutdown. If an abnormal gas flow or excessive oxygen concentration is detected in the protective atmosphere chamber 1, the controller immediately shuts off the solenoid valve, cutting off the gas supply and effectively preventing gas leaks, thus reducing the safety risks caused by hydrogen leaks. Precise control of the flow rate of the auxiliary ammonia decomposition gas (containing hydrogen) avoids excessive hydrogen concentration, reducing the risk of explosion due to hydrogen accumulation and ensuring the safety of the production process. The signal connection between the solenoid valve and flow sensor and the controller enables automated gas flow control, reducing the tedium and errors of manual operation and improving the automation level and efficiency of the production process. Precise gas flow control avoids unnecessary gas waste and reduces the cost of using nitrogen and auxiliary ammonia decomposition gas.

[0061] In the above embodiment, ignition devices 5 are provided at both ends of the protective atmosphere chamber 1 to ignite and remove hydrogen gas overflowing from the protective atmosphere chamber 1.

[0062] It is understandable that hydrogen is a flammable and explosive gas. If it overflows and accumulates inside or outside the protective atmosphere chamber 1, it may cause explosions and other safety accidents. The ignition device 5 can ignite the overflowing hydrogen in a timely manner, converting it into water vapor, thereby effectively preventing hydrogen accumulation and reducing the risk of explosion. By igniting the gas at the outlet and inlet of the protective atmosphere chamber 1, a gas seal is formed, effectively preventing air from entering the protective atmosphere chamber 1 and preventing oxygen in the outside air from mixing with the hydrogen inside, further improving the safety of the production process. The ignition device 5 can ensure that the gas environment inside the protective atmosphere chamber 1 remains stable at all times, avoiding gas concentration fluctuations caused by hydrogen overflow, thereby providing stable process conditions for the thermal recombination process and improving the stability and reliability of the production process.

[0063] In a preferred embodiment, the protective atmosphere chamber 1 is movable along the material transport direction, and the bottom of the protective atmosphere chamber 1 is connected to the pillow block 7 via the support column 6. The pillow block 7 slides along the track 8.

[0064] It should be noted that multiple support columns 6 are welded to the bottom of the protective atmosphere chamber 1. These support columns 6 are mounted on the support blocks 7 to support the entire protective atmosphere chamber 1. The protective atmosphere chamber 1 is mounted on a track 8 on the ground via the support blocks 7. The track 8 bears the load of the support columns 6. The support blocks 7 slide along the track 8, thereby controlling the distance between the protective atmosphere chamber 1 and the hot rolling mill group 2. The bottom of the protective atmosphere chamber 1 is connected to the support blocks 7 via the support columns 6, providing stable support for the protective atmosphere chamber 1 and ensuring its smooth movement, reducing production problems caused by equipment shaking or instability. The design of the support blocks 7 sliding along the track 8 makes the movement of the protective atmosphere chamber 1 smoother and more controllable. The track 8 effectively guides the movement direction of the protective atmosphere chamber 1, preventing it from deviating or jamming during movement, thus improving the reliability and safety of equipment operation.

[0065] Before hot bonding, the protective atmosphere chamber 1 needs to be moved to one end closer to the coiling mechanism so that the steel strip 20 and copper strip 10 output from the coiling mechanism can be transferred into the protective atmosphere chamber 1 and extend to the hot rolling roll group 2. The copper strip 10 and steel strip 20 are clamped by the hot rolling roll group 2. Then, the air in the protective atmosphere chamber 1 is purged and the gas composition and concentration in the protective atmosphere chamber 1 are adjusted. At the same time, circulating cooling water is introduced into the protective atmosphere chamber 1 to ensure the temperature in the protective atmosphere chamber 1. After the gas composition and temperature in the protective atmosphere chamber 1 meet the requirements, the protective atmosphere chamber 1 is moved closer to the hot rolling roll group 2.

[0066] The protective atmosphere chamber 1 is movable along the material transport direction, and its position can be flexibly adjusted according to production needs to accurately cover different areas in the thermal bonding process. It is suitable for processing materials of different lengths or with different process requirements, improving the equipment's versatility and adaptability. By moving the protective atmosphere chamber 1, the various steps in the thermal bonding process can be better coordinated. For example, when materials enter and leave the thermal bonding area, the protective atmosphere chamber 1 can be moved in a timely manner to ensure that the material is always in the optimal protective gas environment throughout the entire transport process, thereby optimizing the production process and improving production efficiency.

[0067] Before hot bonding, the protective atmosphere chamber 1 needs to be moved closer to the coiling mechanism so that the steel strip 20 and copper strip 10 output from the coiling mechanism can be transferred into the protective atmosphere chamber 1 and extend to the hot rolling roll group 2. The hot rolling roll group 2 clamps the copper strip 10 and steel strip 20. Then, nitrogen gas with a purity of not less than 99.5% is introduced into the protective atmosphere chamber 1 through the first air inlet pipe 31, while circulating cooling water is introduced into the cooling water pipe group 4 to ensure that the temperature in the protective atmosphere chamber 1 is within a suitable range. The air in the protective atmosphere chamber 1 is purged with nitrogen gas. When the oxygen concentration in the protective atmosphere chamber 1 is lower than 0.15%, the purging is stopped, and the nitrogen flow rate is adjusted to 25-35 cubic meters per hour. Then, auxiliary ammonia decomposition gas is introduced into the protective atmosphere chamber 1, and the auxiliary ammonia decomposition gas is introduced into the protective atmosphere chamber 1. After adjusting the flow rate of ammonia decomposition gas to 15-20 cubic meters per hour, start the ignition devices 5 at both ends of the protective atmosphere chamber 1, and ignite the three ports at the outlet and inlet of the protective atmosphere chamber 1 in sequence to prevent air from entering the interior of the protective atmosphere chamber 1, so that the protective atmosphere chamber 1 forms an air seal. Move the protective atmosphere chamber 1 to the hot rolling roll group 2, adjust the flow rate of nitrogen to 10-15 cubic meters per hour, and adjust the flow rate of auxiliary ammonia decomposition gas to 5-10 cubic meters per hour. Maintain the flow rates of nitrogen and auxiliary ammonia decomposition gas and the temperature of steel strip 20 for normal production. The upper pressure roller 21 and the lower pressure roller 22 press down to form copper-coated steel strip 30. At the same time, adjust the speed of steel strip 20 and copper strip 10 to 3-6 meters per minute. The speed of copper strip 10 and steel strip 20 is controlled by the coiling mechanism and the receiving mechanism.

[0068] Nitrogen is produced by a nitrogen generator and has a purity of over 99.5%. Ammonia decomposition gas is a gas formed by the decomposition of liquid ammonia, which contains 75% hydrogen and 25% nitrogen.

[0069] In summary, the copper-clad steel strip thermal lamination device provided by this utility model effectively isolates oxygen in the air by introducing high-purity nitrogen and auxiliary ammonia decomposition gas into the protective atmosphere chamber 1. This prevents oxidation of the preheated steel strip 20 surface during the lamination process, improves the interfacial bonding quality of the copper-clad steel strip 30, and ensures stable and reliable performance of the composite material. Cooling circulating water is introduced through the cover plate 11 of the protective atmosphere chamber 1, effectively controlling the internal temperature and ensuring the thermal lamination process is carried out under stable temperature conditions. This improves the uniformity and consistency of the composite material and reduces lamination defects caused by temperature fluctuations. The ignition devices 5 at both ends of the protective atmosphere chamber 1 effectively ignite and remove excess hydrogen, preventing excessive accumulation of flammable hydrogen in the plant and thus improving the safety of the production process and reducing the risk of explosion due to hydrogen leakage. The controllability of gas flow and concentration, as well as the temperature control of the cooling circulating water, enables automated operation of the entire lamination process, reducing manual intervention, improving production stability and repeatability, and further enhancing production efficiency.

[0070] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0071] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0072] The above provides a detailed description of the copper-clad steel strip thermal lamination device provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A thermal lamination device for copper-clad steel strip, characterized in that, include: The protective atmosphere chamber (1) has an open feed port and a discharge port at both ends. The feed port is used to provide copper strip (10) and preheated steel strip (20). The discharge port is provided with a hot rolling roll group (2) for hot pressing the copper strip (10) and the steel strip (20). The intake pipe assembly (3) is connected to the inner cavity of the protective atmosphere chamber (1), and the intake pipe assembly (3) is used to introduce auxiliary ammonia decomposition gas and nitrogen into the protective atmosphere chamber (1); Cooling water pipe assembly (4) is located in the inner cavity of the protective atmosphere chamber (1), and circulating cooling water is introduced into the cooling water pipe assembly (4).

2. The copper-clad steel strip thermal lamination device according to claim 1, characterized in that, The protective atmosphere chamber (1) is equipped with an oxygen concentration detector, which is used to monitor the oxygen concentration in the protective atmosphere chamber (1) in real time and send the measured oxygen concentration information to the controller.

3. The copper-clad steel strip thermal lamination device according to claim 2, characterized in that, It also includes a temperature detector, which is used to monitor the temperature of the protective atmosphere chamber (1) in real time and send the measured temperature information to the controller.

4. The copper-clad steel strip thermal lamination device according to claim 3, characterized in that, The intake pipe assembly (3) is located on both sides of the protective atmosphere chamber (1). The intake pipe assembly (3) includes several first intake pipes (31) for providing nitrogen and second intake pipes (32) for providing auxiliary ammonia decomposition gas. The first intake pipes (31) are located in the middle of the protective atmosphere chamber (1), and the second intake pipes (32) are located at both ends of the protective atmosphere chamber (1). Both the first intake pipes (31) and the second intake pipes (32) are equipped with solenoid valves for controlling the gas flow rate in the pipes and flow sensors for real-time detection of the gas flow rate in the pipes. The solenoid valves and the flow meters are both connected to the controller signal.

5. The thermal lamination device for copper-clad steel strip according to claim 4, characterized in that, Ignition devices (5) are provided at both ends of the protective atmosphere chamber (1).

6. The thermal lamination device for copper-clad steel strip according to any one of claims 1-5, characterized in that, The protective atmosphere chamber (1) has several openable and closable cover plates (11) on both sides and top, and the cooling water pipe assembly (4) is located on the cover plates (11).

7. The copper-clad steel strip thermal lamination device according to claim 6, characterized in that, The cooling water pipe assembly (4) includes an inlet pipe, an outlet pipe and a circulating water pipe (41). The two ends of the circulating water pipe (41) are connected to the inlet pipe and the outlet pipe respectively through connectors (42). The circulating water pipe (41) is arranged in a serpentine shape on the cover plate (11) and is located in the protective atmosphere chamber (1).

8. The thermal lamination device for copper-clad steel strip according to claim 7, characterized in that, The protective atmosphere chamber (1) is moved along the material transport direction, and the bottom of the protective atmosphere chamber (1) is connected to the pillow block (7) by the support column (6). The pillow block (7) slides along the track (8).

9. The thermal lamination device for copper-clad steel strip according to claim 8, characterized in that, The hot rolling roll group (2) includes an upper pressure roll (21) and a lower pressure roll (22) arranged in a relatively rolling manner.

10. The thermal lamination device for copper-clad steel strip according to claim 9, characterized in that, The upper pressure roller (21) and the lower pressure roller (22) are provided with cooling channels for introducing coolant.

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