Temperature control device for rolling copper-aluminum composite plate
By designing a temperature control device, the copper-aluminum composite plate is slowly cooled down by utilizing the height difference between the temperature control shell and the high-temperature gas. This solves the problem of rapid solidification and embrittlement of the aluminum layer, improves the metallurgical bonding rate and quality of the composite plate, and has adaptive control capabilities.
Patent Information
- Application Number
- CN202610115081.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-28
- Publication Date
- 2026-03-06
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the rolling process of copper-aluminum composite plates, the aluminum layer loses heat rapidly, causing the aluminum layer to solidify prematurely, resulting in insufficient atomic diffusion at the interface and low metallurgical bonding rate. After rolling, the aluminum layer is prone to embrittlement and cracking, and there is a lack of effective temperature control devices to control the cooling rate.
A temperature control device was designed, including an inlet preheating roller, a rolling equipment, and an outlet temperature control roller. By utilizing the temperature control shell and the combination of a heating panel and guide rollers, combined with the height difference of high-temperature gas and adaptive regulation, the copper-aluminum composite plate is slowly cooled down, avoiding brittleness issues.
It achieves slow cooling of copper-aluminum composite plates, improves metallurgical bonding rate, reduces embrittlement and cracking, enhances the quality of rolled composite plates, has adaptive control capabilities, and is highly automated.
Smart Images
Figure CN121607414A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of copper-aluminum composite plate rolling technology, and specifically relates to a temperature control device for copper-aluminum composite plate rolling. Background Technology
[0002] Copper-aluminum composite plates, possessing both the high electrical conductivity of copper and the lightweight properties of aluminum, have become a key industrial substrate for replacing pure copper materials. However, the following core technical problems exist in their hot rolling / casting process: the thermal conductivity of copper is 1.69 times that of aluminum, causing rapid heat loss from the aluminum layer to the copper layer during rolling, resulting in premature solidification of the aluminum layer before it enters the rolls (aluminum melting point 660℃, semi-solid range 150-250℃). Insufficient interfacial atomic diffusion results in a metallurgical bonding rate of only 70%-85%, which cannot meet the vibration and impact resistance requirements of new energy battery trays. The rolls are not preheated (room temperature 25℃), and contact with the high-temperature aluminum layer can cause the aluminum layer to become embrittled, producing transverse cracks (crack rate ≥5%). The temperature control of the composite plate after rolling is insufficient, easily leading to rapid cooling after rolling. The aluminum layer cools rapidly after exiting the rolls (cooling rate ≥10℃ / s), resulting in embrittlement. There is no structure with a gentle and natural cooling device to adapt to natural cooling and control the cooling rate. Summary of the Invention
[0003] The purpose of this invention is to provide a temperature control device for rolling copper-aluminum composite plates to solve the above-mentioned problems.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a temperature control device for rolling copper-aluminum composite plates, comprising a mounting frame, wherein an inlet preheating roller, a rolling equipment, and an outlet temperature control roller are provided on the mounting frame; the mounting frame is used for preheating the composite plate, the rolling equipment is used for rolling the composite plate, and the outlet temperature control roller is used for temperature control after rolling to promote a better fusion state; characterized in that: a temperature control shell is provided at the output port of the rolling equipment, and the temperature control shell is fixed on the mounting frame; The temperature control housing includes an outer shell fixed on the two side frames of the mounting frame. A partition is provided in the middle of the outer shell, which divides the outer shell into two areas. A lower guide roller is provided on the side closer to the rolling equipment to guide the composite plate to the top of the partition. An upper guide roller is provided on the top of the partition to guide the composite plate to the bottom of one side of the outer shell, and then extends out to the bottom of the outlet temperature control roller for output. A heating panel is provided on the side of the partition closest to the lower guide roller for heating, and a heat insulation plate is provided on the side of the partition away from the lower guide roller for separating the temperatures on both sides. The bottom of the outer casing near the outlet temperature control roller has an movable outlet roller for guiding and sealing.
[0005] Preferably, a motor is driven to one side of the discharge roller, and a connecting pipe is movably connected to the other side through a sealed bearing. One side of the connecting pipe is connected to an air duct, and one end of the air duct is connected to a hot air blower. The discharge roller has several air outlets. A rubber layer is provided on the outside of the discharge roller for compression sealing, but it has holes that are adapted to the air outlets for exhaust.
[0006] Preferably, both the inlet preheating roller and the outlet temperature control roller are equipped with heating tubes to control the body temperature of the inlet preheating roller and the outlet temperature control roller for preheating the composite plate.
[0007] Preferably, the discharge roller is provided with a control housing, which is connected to the side of the temperature control housing near the air outlet. The control housing is provided with several miniature exhaust fans for drawing in high-temperature gas from one side of the temperature control housing.
[0008] Preferably, an incomplete gear is movably disposed on the rear side of the temperature control housing, a gear is meshed on the incomplete gear, a central rotating shaft is fixedly connected inside the gear, and one end of the central rotating shaft extends into the control housing and is movably connected to the control housing.
[0009] Preferably, a plurality of sealing blocks are provided at one end of the central rotating shaft extending into the control housing, and the sealing blocks correspond one-to-one with the holes communicating between the temperature control housing and the control housing.
[0010] Preferably, the plurality of sealing blocks also correspond one-to-one with a plurality of miniature exhaust fans. The indirectness of the incomplete gears drives the central rotating shaft and the sealing blocks to rotate and undulate to block the flow. A torsion spring is fixed between the central rotating shaft and the inner wall of the control housing for the reset of the sealing blocks.
[0011] Preferably, an arc-shaped plate is provided on the side of the outlet roller away from the temperature control housing to prevent gas from escaping, and the outer shell, the vent hole and the composite plate are fitted together.
[0012] The technical effects and advantages of this invention are as follows: 1. By using the electric heating plate on one side of the partition to further heat up the copper-aluminum composite plate, the aluminum material is prevented from becoming brittle due to instantaneous cooling. Then, the upper guide roller is used to guide the material to the other side of the temperature control shell. The gas inside the exhaust roller is used to heat up this side of the temperature control shell. Then, the overall height of the temperature control shell is used to allow the high-temperature gas to move upward, achieving slow cooling by utilizing the height difference. This slows down the cooling of the rolled copper-aluminum composite plate, reducing the brittleness problem. The entire process utilizes the height temperature difference to achieve cooling, which is more slow. Furthermore, the adaptive component is used to link the exhaust rate of the high-temperature gas at the top with the transport speed of the inlet preheating roller. 2. The overall temperature control equipment can adaptively adjust according to the transmission rate, with a high degree of automation. It adopts height difference cooling and uses low-heat gas generated by the hot air blower to regulate the temperature difference between the upper and lower parts inside the temperature control shell. A heating tube is set on one side of the temperature control shell (not shown in the diagram) to heat the upper part of the temperature control shell near the outlet roller. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the temperature control housing of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the structure of section A; Figure 4 This is a rear view of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of section B in the middle; Figure 6 This is a schematic diagram of the internal structure of the control housing of the present invention; Figure 7 This is a schematic diagram of the internal structure of the temperature control housing of the present invention; Figure 8 This is a schematic diagram of the internal structure of the inlet preheating roller of the present invention.
[0014] In the diagram: 1. Mounting frame; 2. Inlet preheating roller; 201. Roller body; 202. Heating tube; 3. Rolling equipment; 4. Outlet temperature control roller; 5. Control shell; 7. Temperature control shell; 701. Outer shell; 702. Partition plate; 703. Upper guide roller; 704. Lower guide roller; 705. Outlet roller; 706. Arc plate; 707. Air outlet; 708. Connecting pipe; 709. Air duct; 710. Sealed bearing; 8. Hot air blower; 9. Adaptive component; 901. Incomplete gear; 902. Synchronous belt; 903. Central shaft; 904. Gear; 905. Sealing block; 906. Torsion spring; 10. Miniature exhaust fan. Detailed Implementation
[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0016] This invention provides, for example Figures 1-8The temperature control device for rolling copper-aluminum composite plates shown includes a mounting frame 1, on which an inlet preheating roller 2, a rolling equipment 3, and an outlet temperature control roller 4 are installed. The mounting frame 1 is used for preheating the composite plate, the rolling equipment 3 is used for rolling the composite plate, and the outlet temperature control roller 4 is used for temperature control after rolling to promote a better fusion state. The device is characterized in that: a temperature control housing 7 is provided at the output port of the rolling equipment 3, and the temperature control housing 7 is fixed on the mounting frame 1. The temperature control housing 7 includes an outer shell 701 fixed on the two side frames of the mounting frame 1. A partition 702 is provided in the middle of the outer shell 701, which divides the outer shell 701 into two areas. A lower guide roller 704 is provided on the side closer to the rolling equipment 3 to guide the composite plate to the top of the partition 702. An upper guide roller 703 is provided on the top of the partition 702 to guide the composite plate to the bottom of one side of the outer shell 701. The bottom of the outlet temperature control roller 4 extends out for output. A heating panel is provided on the side of the partition 702 near the lower guide roller 704 for heating, and a heat insulation plate is provided on the side of the partition 702 away from the lower guide roller 704 for separating the temperatures on both sides. An outlet roller 705 is movably provided at the bottom of the outer casing 701 near the outlet temperature control roller 4 for guiding and sealing purposes.
[0017] Specifically, a motor is connected to one side of the discharge roller 705, and a connecting pipe 708 is movably connected to the other side via a sealed bearing 710. One side of the connecting pipe 708 is connected to an air duct 709, and one end of the air duct 709 is connected to a hot air blower 8. Several air outlets 707 are provided on the discharge roller 705. A rubber layer is provided on the outside of the discharge roller 705 for compression sealing, but holes are provided on it to match the air outlets 707 for exhaust.
[0018] Specifically, both the inlet preheating roller 2 and the outlet temperature control roller 4 are equipped with heating tubes 202 to control the body temperature of the inlet preheating roller 2 and the outlet temperature control roller 4 for preheating the composite plate.
[0019] Specifically, the discharge roller 705 is provided with a control housing 5, which is connected to the side of the temperature control housing 7 near the air outlet 707. The control housing 5 is provided with several miniature exhaust fans 10, which are used to draw in high-temperature gas from one side of the temperature control housing 7.
[0020] Specifically, an incomplete gear 901 is movably arranged on the rear side of the temperature control housing 7. A gear 904 is meshed on the incomplete gear 901. A central rotating shaft 903 is fixedly connected inside the gear 904. One end of the central rotating shaft 903 extends into the control housing 5 and is movably connected to the control housing 5.
[0021] Specifically, a number of sealing blocks 905 are provided at one end of the central rotating shaft 903 extending into the control housing 5. The sealing blocks 905 correspond one-to-one with the holes that connect the temperature control housing 7 and the control housing 5.
[0022] Specifically, several sealing blocks 905 correspond one-to-one with several miniature exhaust fans 10. The indirect rotation of the central shaft 903 and the sealing blocks 905 is driven by the incomplete gear 901 to block the airflow. A torsion spring 906 is fixed between the central shaft 903 and the inner wall of the control housing 5 for the reset of the sealing blocks 905.
[0023] Specifically, an arc-shaped plate 706 is provided on the side of the outlet roller 705 away from the temperature control housing 7 to prevent gas from escaping, and the housing 701, the vent 707 and the composite plate are attached to each other.
[0024] Working Principle: When using this invention, the copper-aluminum composite plate is conveyed from the inlet preheating roller 2, and preheated using the internal heating of the inlet preheating roller 2, providing excellent physical conditions for subsequent rolling. Then, the preheated copper-aluminum composite plate is rolled using the rolling equipment 3. The rolled high-temperature copper-aluminum composite plate is guided by the lower guide roller 704 into the temperature control housing 7. During this process, a partition is set between the lower guide roller 704 and the temperature control housing 7 for temperature protection. The electric heating plate on one side of the partition 702 further heats the copper-aluminum composite plate, preventing the aluminum material from being heated too quickly. Cooling causes brittleness. The upper guide roller 703 is used to guide the gas to the other side of the temperature control housing 7. The gas inside the exhaust roller 705 is used to heat the side of the temperature control housing 7. The high temperature gas moves upward using the overall height of the temperature control housing 7, and the height difference is used to achieve slow cooling. This slow cooling of the rolled copper-aluminum composite plate reduces the brittleness problem. The entire process uses the height temperature difference to achieve cooling, which is more slow. Then, the adaptive component 9 is used to link the exhaust rate of the high temperature gas at the top with the transport speed of the inlet preheating roller 2. By utilizing the incomplete gears 901 and 904, the transport rotational power of the inlet preheating roller 2 can indirectly drive the gear 904 to perform an arc-shaped rotational motion. The faster the inlet preheating roller 2 rotates, the higher the rotation frequency of the gear 904, and the longer the sealing block 905 blocks the holes. This continuously drives the sealing block 905 to block the holes, preventing air leakage. The faster the rotation, the slower the flow rate inside the temperature control housing 7, resulting in a higher average temperature inside the temperature control housing 7. This also reduces the size of the copper-aluminum composite plate inside the temperature control housing 7. It can also control the overall cooling purpose. As the transmission speed of the imported preheating roller 2 decreases, the average temperature inside the temperature control housing 7 will be lower. When the speed is fast, the temperature is reduced to achieve efficient cooling. The overall temperature control equipment can adaptively adjust according to the transmission rate, with a high degree of automation. It also adopts height difference cooling. The low heat gas generated by the hot air blower 8 is used to regulate the temperature difference between the upper and lower parts inside the temperature control housing 7. A heating tube is provided on one side of the temperature control housing 7 (not shown in the figure) to heat the upper part of the temperature control housing 7 near the outlet roller 705.
[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A temperature control device for rolling copper-aluminum composite plate, comprising a mounting rack (1), an inlet preheating roller (2), a rolling device (3) and an outlet temperature control roller (4) are arranged on the mounting rack (1), the mounting rack (1) is used for preheating the composite plate, the rolling device (3) is used for rolling the composite plate, and the outlet temperature control roller (4) is used for promoting the formation of a better fusion state after rolling, characterized in that: The output of the rolling device (3) is provided with a temperature control shell (7) which is fixed on the mounting rack (1); The temperature control shell (7) comprises an outer shell (701) which is fixed on the frames on both sides of the mounting rack (1), a partition plate (702) is arranged in the middle of the outer shell (701), the partition plate (702) divides the outer shell (701) into two areas, a lower guide roller (704) is arranged on the side close to the rolling device (3) for guiding the composite board to the top of the partition plate (702), an upper guide roller (703) is arranged on the top of the partition plate (702) for guiding the composite board to the bottom of the side of the outer shell (701), and an outlet temperature control roller (4) is arranged at the bottom of the outlet temperature control roller (4) for output. A heating panel is arranged on the side of the partition plate (702) close to the lower guide roller (704) for heating, and a heat insulation plate is arranged on the side of the partition plate (702) away from the lower guide roller (704) for dividing the temperature on both sides. A guide roller (705) is movably arranged on the bottom of the side of the outer shell (701) close to the outlet temperature control roller (4) for guiding and sealing.
2. The temperature control device for rolling copper-aluminum composite sheet according to claim 1, characterized in that: A motor is drivingly connected to one side of the guide roller (705), and a connecting pipe (708) is movably connected to the other side of the guide roller (705) through a sealing bearing (710), one side of the connecting pipe (708) is connected to an air pipe (709), one end of the air pipe (709) is connected to a hot air blower (8), a plurality of air outlets (707) are formed in the guide roller (705), and a rubber layer is arranged on the outer side of the guide roller (705) for extrusion sealing but a hole is formed in the rubber layer and matched with the air outlets (707) for air exhaust.
3. The temperature control device for rolling copper-aluminum composite sheet according to claim 1, characterized in that: Heating pipes (202) are arranged in the inlet preheating roller (2) and the outlet temperature control roller (4) for controlling the temperature of the inlet preheating roller (2) and the outlet temperature control roller (4) to preheat the composite board.
4. The temperature control device for rolling copper-aluminum composite sheet according to claim 1, characterized in that: A control shell (5) is arranged on the guide roller (705), the control shell (5) is connected to the side of the temperature control shell (7) close to the air outlets (707), a plurality of micro air suction fans (10) are arranged on the control shell (5) for sucking high-temperature gas on one side of the temperature control shell (7).
5. The temperature control device for rolling copper-aluminum composite sheet according to claim 1, characterized in that: An incomplete gear (901) is movably arranged on the rear side of the temperature control shell (7), a gear (904) is meshingly connected to the incomplete gear (901), a center rotating shaft (903) is fixedly connected to the inside of the gear (904), and one end of the center rotating shaft (903) extends into the control shell (5) and is movably connected to the control shell (5).
6. The temperature control device for rolling copper-aluminum composite sheet according to claim 5, characterized in that: A plurality of sealing blocks (905) are arranged on the end of the center rotating shaft (903) extending into the control shell (5), and the sealing blocks (905) correspond to the holes between the temperature control shell (7) and the control shell (5).
7. The temperature control device for rolling copper-aluminum composite sheet according to claim 6, characterized in that: The several sealing blocks (905) also correspond to several micro-pump (10) one by one, using indirect drive center shaft (903) and sealing block (905) rotation fluctuation block by incomplete gear (901), the center shaft (903) and the fixed torsion spring (906) between the inner wall of the control shell (5) is used for the reset of the sealing block (905).
8. The temperature control device for rolling copper-aluminum composite sheet according to claim 7, characterized in that: The guide roller (705) is provided with an arc plate (706) on the side away from the temperature control shell (7), which is used to prevent the emission of gas, and the shell (701), the air outlet (707) and the composite plate are mutually attached.