A hot mounting device for the titanium layer of the cathode roller and the core layer

Abstract

The utility model discloses a kind of hot mounting device for cathode roller titanium layer and core layer, including heating furnace body, the middle part of the heating furnace body is provided with hot mounting cavity, at least three heating modules are arranged on the side wall of the heating furnace body along the height direction, cooling structure is provided on the heating module, the upper side and / or lower side of the heating furnace body is provided with exhaust structure, by being provided with multi-section heating module on heating furnace body, so that each heating module can work independently, realize distributed heating, by setting cooling structure, the independent rapid cooling of each heating module can be realized, the temperature control of each heating module is controlled to control the hot mounting of cathode roller middle part preferentially cooling, gas is discharged through the both ends of cathode roller, ensure that no gas remains between cathode roller titanium layer and copper layer.

Description

Technical Field

[0001] This utility model relates to the technical field of electrolytic copper foil process equipment, specifically a heat-fitting device for the titanium layer and core layer of a cathode roller. Background Technology

[0002] Currently, cathode rollers for electrolytic copper foil are hot-loaded in embedded heating furnaces. After hot loading, a natural cooling process is adopted. During the natural cooling process, the upper end of the cathode roller cools and shrinks first, and the gas in the hot loading gap is squeezed to the lower part of the hot loading furnace. Since there are no exhaust holes in the lower part of the hot loading furnace, the gas is easily sealed between the titanium layer and the copper layer of the cathode roller, forming a high-resistivity oxide layer in actual use. Utility Model Content

[0003] This invention provides a heat-fitting device for the titanium layer and core layer of a cathode roller, which can solve the problem that the existing heat-fitting devices for the titanium layer and core layer of the cathode roller use natural cooling, resulting in the formation of a high-resistivity oxide layer between the titanium layer and the copper layer of the cathode roller.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a heat-fitting device for the titanium layer and core layer of a cathode roller, comprising a heating furnace body, a heat-fitting cavity in the middle of the heating furnace body, at least three heating modules arranged along the height direction on the side wall of the heating furnace body, each heating module being provided with a cooling structure, and an exhaust structure provided on the upper and / or lower side of the heating furnace body. By setting multi-segment heating modules on the heating furnace body, each heating module can work independently to achieve distributed heating. By setting cooling structures, each heating module can be cooled quickly and individually. The temperature control of each heating module can be used to control the preferential cooling of the center of the cathode roller for heat-fitting, and the gas is discharged through both ends of the cathode roller to ensure that no gas remains between the titanium layer and the copper layer of the cathode roller.

[0005] Preferably, the heating module includes an upper heating module located at the top of the heat fitting cavity, a middle heating module located in the middle of the heat fitting cavity, and a lower heating module located at the bottom of the heat fitting cavity. The middle heating module can be turned off first by independent control of the three heating modules, so that the air is squeezed out to both ends first.

[0006] Preferably, the cooling structure is an air-cooled channel located in the middle of the heating module, which has a simple structure.

[0007] Preferably, the air-cooling channel is connected to a fan or air pump, which can improve the cooling speed of the heating module by the cooling structure.

[0008] Preferably, both the heating module and the cooling structure are annular structures, which makes the heating and cooling of the heat-filled cavity more uniform.

[0009] Preferably, the exhaust structure is an exhaust groove located near the edge of the hot-fitting cavity, which can smoothly guide and exhaust the air between the titanium copper and the copper core cylinder inside the hot-fitting cavity.

[0010] Preferably, the heating module is an electromagnetic coil, a resistance wire, or an infrared radiation ring. A combination of various heating structures can be used, such as using a resistance wire for the middle heating module and electromagnetic coils for the upper and lower heating modules, which can produce different heating speeds.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] Through three-stage cooling control, namely, priority cooling in the middle section and subsequent cooling at both ends, the gas directional extrusion effect is formed by utilizing the time difference of titanium-copper contraction: when the middle section is cooled and contracted, the internal gas is discharged through the two ends of titanium-copper. With the help of the base exhaust structure, gas is prevented from being trapped between the titanium layer and the core layer, achieving a gas discharge rate of ≥99%, eliminating subsequent problems caused by gas residue from the source.

[0013] Through a tight bond with no gas residue, the contact surfaces of the titanium layer and the copper core layer are in direct contact, reducing the contact resistance by more than 70% and avoiding the formation of a high-resistance oxide layer.

[0014] By prioritizing cooling in the middle section, the titanium-copper shrinkage proceeds gradually from the middle to both ends, resulting in a uniform distribution of shrinkage stress and axial misalignment deviation controlled within 0.1mm. Combined with the annular cooling structure, this ensures uniform circumferential shrinkage and avoids circumferential deformation of the titanium layer caused by local temperature differences in traditional processes. Attached Figure Description

[0015] Figure 1 This is a front sectional view of the structure of this utility model.

[0016] Figure label:

[0017] 1. Furnace body, 2. Copper core cylinder, 3. Titanium copper, 4. Cooling structure, 5. Exhaust duct, 6. Heating module. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] This invention addresses the problem of high-resistivity oxide layers forming between the titanium and copper layers in existing cathode roller heat-fitting devices that rely on natural cooling. Figure 1As shown, the following technical solution is provided: a heat-fitting device for the titanium layer and core layer of a cathode roller, including a heating furnace body 1, a heat-fitting cavity in the middle of the heating furnace body 1, at least three heating modules 6 arranged along the height direction on the side wall of the heating furnace body 1, each heating module 6 being provided with a cooling structure 4, and an exhaust structure being provided on the upper and / or lower side of the heating furnace body 1. By setting multi-segment heating modules 6 on the heating furnace body 1, each heating module 6 can work independently to achieve distributed heating. By setting the cooling structure 4, each heating module 6 can be cooled quickly and individually. The temperature control of each heating module 6 can be used to control the priority cooling of the heat-fitting in the middle of the cathode roller, and the gas is discharged through both ends of the cathode roller to ensure that no gas remains between the titanium layer and the copper layer of the cathode roller.

[0020] Specifically, the heating module 6 includes an upper heating module located at the top of the heat fitting cavity, a middle heating module located in the middle of the heat fitting cavity, and a lower heating module located at the bottom of the heat fitting cavity. The middle heating module can be turned off first through independent control of the three heating modules, so that the air is squeezed out to both ends first. The technical solution in this embodiment is mainly to assemble the titanium copper 3 with the copper core cylinder 2. It mainly adopts the principle of thermal expansion and contraction. The heat fitting cavity is first heated by the heating module 6, so that the outer titanium copper 3 will expand and loosen. At this time, the copper core cylinder 2 of the core layer can be easily installed into the titanium copper 3. At this time, there is a gap between the titanium copper 3 and the copper core cylinder 2, and the gap contains air.

[0021] Then, the heating module 6 in the middle first turns off the heating and cools down. The middle titanium layer first contracts, driving the gas to both ends. The gas is discharged from both ends. Finally, the upper and lower heating modules are turned off and the corresponding cooling structure 4 is turned on, so that the two ends of the titanium cylinder are cooled and contracted, and the air is completely discharged.

[0022] In addition, the number of heating modules 6 can be adjusted as needed, such as increasing to five sections according to the length of the cathode roller, which is suitable for cathode rollers of different specifications (diameter φ500-φ1500mm, length 2-5m), improving equipment compatibility and reducing customization costs.

[0023] The multi-segment heating module 6 only activates the corresponding area when needed, such as turning off the middle section heating module when cooling the middle section. Compared with traditional embedded heating furnaces that heat the entire process, energy consumption is reduced by more than 30%.

[0024] By setting up a separate cooling structure 4, the overall cooling time is shortened from 8-12 hours of traditional natural cooling to a controllable 3-5 hours (adjusted according to the thickness of the titanium layer), which greatly improves the efficiency of thermal charging and can increase the daily production capacity by 50%.

[0025] In this embodiment, the cooling structure 4 is a wind-cooling channel located in the middle of the heating module 6. The structure is simple. The wind-cooling channel is connected to a fan or air pump. The fan or air pump can blow cooling air into the cooling structure 4, which can improve the cooling speed of the heating module 6 by the cooling structure 4.

[0026] In this embodiment, both the heating module 6 and the cooling structure 4 are annular structures, which can ensure that the circumferential (circumferential direction) temperature deviation is ≤ ±2℃ (the deviation of traditional single-sided heating can reach ±10℃); the uniform circumferential temperature distribution avoids excessive shrinkage in hot spots, and makes the shrinkage stress of the titanium cylinder evenly distributed along the circumference (stress difference ≤ 10%), reducing the risk of titanium layer cracking or debonding from the core layer due to stress concentration.

[0027] In this embodiment, the exhaust structure is an exhaust groove 5 located near the edge of the hot charging cavity. The exhaust groove 5 can smoothly guide and discharge the air between the titanium copper 3 and the copper core cylinder 2 inside the hot charging cavity. The exhaust groove 5 can also be designed as an annular shape to guide the airflow to the outside of the furnace body. The cooling airflow of the annular cooling structure 4 acts evenly on the titanium cylinder along the circumference, and the contraction force squeezes towards the center simultaneously, discharging the gas from the axial channels at both ends of the titanium cylinder. Together with the annular exhaust groove of the base, it forms the main axial exhaust channel, reducing the gas flow resistance by 40%.

[0028] In this embodiment, the heating module 6 is an electromagnetic coil, a resistance wire, or an infrared radiation ring. It can be a combination of various heating structures, such as a resistance wire for the middle heating module and electromagnetic coils for the upper and lower heating modules, forming a "hybrid heating source" that can produce different heating speeds. Temperature sensors can be integrated at different positions in the heat-fitting cavity, and a PLC system can be used to monitor the temperature difference between each section in real time, dynamically adjust the heating power and cooling jet frequency, and ensure that the middle section is always 50-80°C lower than the two ends.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] Furthermore, in this utility model, descriptions involving terms such as "primary," "secondary," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "primary" or "secondary" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A heat-fitting device for a cathode roller titanium layer and core layer, comprising a heating furnace body (1), wherein a heat-fitting cavity is provided in the middle of the heating furnace body (1), characterized in that, At least three heating modules (6) are arranged along the height direction on the side wall of the furnace body (1). Each heating module (6) is provided with a cooling structure (4). An exhaust structure is provided on the upper and / or lower side of the furnace body (1).

2. The heat-fitting device for the titanium layer and core layer of the cathode roller according to claim 1, characterized in that: The heating module (6) includes an upper heating module located at the top of the heat fitting cavity, a middle heating module located in the middle of the heat fitting cavity, and a lower heating module located at the bottom of the heat fitting cavity.

3. The heat-fitting device for the titanium layer and core layer of the cathode roller according to claim 2, characterized in that: The cooling structure (4) is an air-cooled channel located in the middle of the heating module (6).

4. The heat-fitting device for the titanium layer and core layer of the cathode roller according to claim 3, characterized in that: The air-cooling channel is connected to a fan or air pump.

5. The heat-fitting device for the titanium layer and core layer of a cathode roller according to any one of claims 1-4, characterized in that: The heating module (6) and cooling structure (4) are both ring structures.

6. The heat-fitting device for the titanium layer and core layer of the cathode roller according to claim 4, characterized in that: The exhaust structure is an exhaust groove (5) located near the edge of the hot fitting cavity.

7. The heat-fitting device for the titanium layer and core layer of the cathode roller according to claim 1, characterized in that: The heating module (6) is an electromagnetic coil, a resistance wire, or an infrared radiation ring.

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