An annealing furnace suitable for tension control of ultra-thin alloy strips

Abstract

The present invention discloses an annealing furnace suitable for tension control of ultra-thin alloy strips, belonging to the technical field of metallurgical equipment; it solves the technical problem that the tension is difficult to control during the annealing process of existing ultra-thin alloy strips. The annealing furnace of the present invention comprises a tension device, a heating device, a cooling device, a push-pull device and a supporting device; the supporting device is used to support the tension device, the push-pull device and the cooling device; the heating device is connected to the cooling device; the push-pull device is used to transport samples, and the tension device is connected to the cooling device, which is used to apply and monitor the tension changes of the ultra-thin alloy strips during the annealing process. The present invention realizes the precise control of the tension of ultra-thin alloy precision strips in the atmosphere-protected annealing process.

Description

Technical Field

[0001] The invention relates to the technical field of annealing heat treatment, and in particular to an annealing furnace used for tension annealing of an ultra-thin alloy strip. Background Art

[0002] Heat treatment is an important procedure in the production and processing of metal materials and components, and has a crucial impact on the final material properties. Annealing is one of the heat treatment processes and is generally used in the next process after cold rolling. For precision ultra-thin alloy strips, the final annealing process directly affects the performance of the material.

[0003] However, the preparation of high-performance precision ultra-thin alloy strips requires not only the appropriate annealing temperature and holding time, but also high requirements for the ambient atmosphere, and the role of various atmospheres must be considered. In addition, the precise control of tension during the annealing process is also crucial to the final material properties of precision ultra-thin alloy strips.

[0004] However, the existing annealing furnace is not equipped with a tension device, and it is unable to measure the tension change during the annealing of the ultra-thin alloy strip. Summary of the invention

[0005] In view of the above analysis, the present invention aims to provide an annealing furnace for tension annealing of ultra-thin alloy strips, so as to solve the problem of precise tension control of existing ultra-thin alloy precision strips in the atmosphere-protected annealing process.

[0006] The purpose of the present invention is mainly achieved through the following technical solutions:

[0007] The present invention provides an annealing furnace suitable for controlling the tension of ultra-thin alloy strips, comprising a tension device, a heating device, a cooling device, a push-pull device and a supporting device;

[0008] The supporting device is used to support the tension device, the push-pull device and the cooling device; the heating device is connected to the cooling device; the push-pull device is used to transport the sample to the cooling device or the heating device, the tension device is connected to the cooling device, and the tension device is used to apply and monitor the tension change of the ultra-thin alloy strip during the annealing process.

[0009] In a possible design, the tension device includes a pressure sensor and a pressure sensor connecting frame; the pressure sensor is arranged on the pressure sensor connecting frame;

[0010] One end of the pressure sensor connecting frame is connected to the ultra-thin alloy strip in the cooling device or the heating device.

[0011] In one possible design, the push-pull device includes a push-pull rod and a burning rack;

[0012] The burning rack is arranged in the cooling device and is used to carry the ultra-thin alloy strip; one end of the push-pull rod passes through the heating zone and is connected to the burning rack; the push-pull rod is used to move the ultra-thin alloy strip.

[0013] In a possible design, a partition device is provided between the cooling device and the heating device;

[0014] The isolation device is used to isolate the heat conduction between the heating device and the cooling device.

[0015] In one possible design, the heating device includes an upper heating furnace body and a lower heating furnace body;

[0016] The space enclosed by the upper heating furnace body and the lower heating furnace body is the heating zone.

[0017] In one possible design, a ventilator is also included;

[0018] The cooling device is provided with a gas inlet and a gas outlet, and the ventilation device is connected with the cooling device through the gas inlet; the ventilation device is used for ventilation during the tension annealing process of the ultra-thin alloy strip.

[0019] In a possible design, it also includes an exhaust gas treatment device, which is connected to the gas outlet.

[0020] In one possible design, the support device includes a first square three-dimensional support, a second square three-dimensional support, and a third square three-dimensional support;

[0021] The first square three-dimensional bracket is used to support the tension device, the second square three-dimensional bracket is used to support the cooling device; and the third square three-dimensional bracket is used to support the push-pull device.

[0022] In a possible design, a control cabinet is also included; the control cabinet is provided with a visualization interface.

[0023] In a possible design, the control cabinet is connected to the tension device, the cooling device, the heating device and the ventilation device; the heating device is arranged directly above the control cabinet and the two are designed as one body.

[0024] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0025] (1) The present invention utilizes a push-pull rod, a guide rail frame, and a driving motor to convey an ultra-thin alloy strip, and utilizes a pressure sensor to apply tension to the ultra-thin alloy strip, thereby ensuring that the ultra-thin alloy strip moves in a cooling furnace and a heating furnace while being subjected to tension, thereby achieving continuous processing during annealing, reducing material loss during the transfer process, and avoiding frequent operations by staff during actual operations, thereby effectively improving heat treatment efficiency and experimental success rate.

[0026] (2) The present invention utilizes a pressure sensor to change the tension of the ultra-thin strip during the annealing process, and utilizes a ventilation device to allow the ultra-thin alloy strip to undergo annealing experiments under different atmospheres. The combination of the two can achieve controllable tension atmosphere protection annealing, thereby exploring the organizational changes of the precision ultra-thin strip during tension annealing and effectively improving the material properties of the precision ultra-thin strip.

[0027] (3) The control cabinet of the present invention is provided with a visual interface, by which process operation variables such as tension adjustment, temperature change and atmosphere adjustment can be visualized and integrated, which is convenient for the operation of the experimenter and can simultaneously adjust and monitor the changes in tension, temperature and atmosphere.

[0028] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can become obvious from the description, or can be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the embodiments of the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings are only for the purpose of illustrating specific embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like components throughout the drawings.

[0030] Figure 1 It is an overall schematic diagram of an annealing furnace for tension annealing of ultra-thin alloy strips of the present invention;

[0031] Figure 2 It is a front view of an annealing furnace for tension annealing of ultra-thin alloy strips of the present invention;

[0032] Figure 3 It is a structural schematic diagram of the tension device of the present invention;

[0033] Figure 4 It is a structural schematic diagram of the push-pull device.

[0034] Reference numerals:

[0035] 1-pressure sensor connecting frame; 2-pressure sensor; 3-upper heating furnace body; 4-lower heating furnace body; 6-cooling device; 7-gas inlet; 8-gas outlet; 5-control cabinet; 9-guide rail frame; 10-support device; 11-partition device; 12-cylinder; 13-spring hose; 14-push-pull rod. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0037] The present invention provides an annealing furnace suitable for controlling the tension of ultra-thin alloy strips, such as Figure 1 and Figure 2 As shown, the annealing furnace is mainly an annealing furnace for laboratory use; the annealing furnace includes a tension device, a heating device, a cooling device 6, a push-pull device and a supporting device 10; the supporting device 10 is used to support the tension device, the cooling device 6 and the push-pull device; wherein the heating device is connected to the cooling device 6; the push-pull device is used to transport the sample to the cooling device 6 or the heating device, the tension device is connected to the cooling device 6, and the tension device is used to apply and monitor the tension changes of the ultra-thin alloy strip during the annealing process.

[0038] Specifically, the cooling device 6 and the heating device of the present invention are both hollow furnace tubes, and the cooling device 6 (for example, a cooling furnace) is connected to the heating device (for example, a heating furnace) internally, that is, the air tightness of the two is the same, and the cooling device 6 and the heating device are used together to control the annealing process of the ultra-thin alloy strip under atmosphere protection, including the heating temperature, the holding time and the cooling speed, etc. It should be noted that the tension device, the cooling device 6, the heating device and the push-pull device are connected in sequence and are all arranged on the support device 10; wherein, the ultra-thin alloy strip is placed in the cooling device 6 or the heating device, one end of the ultra-thin alloy strip is connected to the tension device, and the other end is connected to the push-pull device, and the ultra-thin alloy strip can move in the cooling device 6 and the heating device while being tensioned, so that continuous processing can be achieved during the annealing process, the material loss during the transfer process is reduced, and the frequent operation of the staff during the actual operation process is avoided, which can effectively improve the heat treatment efficiency and the success rate of the experiment.

[0039] Compared with the prior art, the present invention can achieve accurate control of the tension of the ultra-thin alloy strip in the annealing process through the tension device. In addition, the present invention connects the heating device and the cooling device 6 to facilitate heating and cooling of the sample in the same environment atmosphere to avoid oxidation of the sample.

[0040] The thickness of the ultra-thin alloy strip of the present invention is less than 0.10mm, and its hardness will drop significantly when annealed at a higher temperature. The steel strip is subjected to tension during continuous annealing due to the process requirements and the tension generated by its own weight. The tension during high-temperature annealing strongly affects the change of the microstructure. The evolution of the grain structure during the annealing process is extremely sensitive to the tension and the grain evolution speed is extremely fast, which seriously affects the material properties after annealing. Therefore, the continuous annealing tension value of the precision ultra-thin alloy strip must be accurately set.

[0041] In order to achieve accurate setting of the tension of ultra-thin alloy strip during annealing, Figure 3 As shown, the tension device of the present invention includes a pressure sensor 2 and a pressure sensor connecting frame 1; the pressure sensor 2 is arranged on the pressure sensor connecting frame 1; the pressure sensor connecting frame 1 is connected to the ultra-thin alloy strip in the cooling device 6.

[0042] Specifically, a burning rack is provided in the cooling device 6, the ultra-thin alloy strip is arranged on the burning rack, the pressure sensor connecting frame 1 is connected to the ultra-thin alloy strip inside the cooling device 6, and the pressure sensor 2 is arranged on the pressure sensor connecting frame 1. The pressure sensor 2 can be used to apply and monitor the tension change of the ultra-thin alloy strip during tension annealing.

[0043] Compared with the prior art, the present invention utilizes the pressure sensor 2 to apply and monitor the tension change of the ultra-thin alloy strip, and changes the tension of the ultra-thin alloy strip during the annealing process through the pressure sensor 2 to achieve the purpose of tension regulation.

[0044] The tension device of the present invention also includes a cylinder 12 and a spring hose 13, wherein the cylinder 12 is arranged on the support unit, and the cylinder 12 is connected to the spring hose 13 through a pressure sensor connecting frame 1; a molybdenum wire is arranged in the spring hose 13, and the pressure sensor 2 is connected to the ultra-thin alloy strip in the cooling device 6 through the molybdenum wire to provide tension data.

[0045] It should be noted that the pressure sensor 2 of the present invention is a digital sensor, and the tension value can be directly input to adjust the size.

[0046] In order to facilitate the movement of ultra-thin alloy strips, such as Figure 4 As shown, the push-pull device of the present invention includes a push-pull rod 14 and a burning rack; the burning rack is arranged in the cooling device 6, and the burning rack is used to carry the ultra-thin alloy strip; one end of the push-pull rod 14 passes through the heating device (i.e., the heating furnace) and is connected to the burning rack; the push-pull rod 14 is used to move the ultra-thin alloy strip.

[0047] Specifically, a burning rack carrying the sample is arranged in the cooling device 6, a hook is provided at one end of the burning rack, the first end of the push-pull rod 14 is connected to the burning rack through the hook, and the second end of the push-pull rod 14 (i.e., the other end) is outside the heating furnace. Pushing or pulling the push-pull rod 14 can make the ultra-thin alloy strip reciprocate in the annealing furnace, pushing and pulling the ultra-thin alloy strip into the heating zone or pushing it away from the heating zone.

[0048] Compared with the prior art, the present invention utilizes a push-pull rod 14 to move the sample, so that the ultra-thin alloy strip can be moved in the cooling furnace and the heating furnace while tension is applied, thereby realizing continuous processing during the annealing process, reducing material loss during the transfer process, and avoiding frequent operations by staff during actual operations, which can effectively improve the heat treatment efficiency and the success rate of the experiment.

[0049] In order to further facilitate the movement of the ultra-thin alloy strip, the push-pull device of the present invention also includes a guide rail frame 9 and a drive motor; wherein the guide rail frame 9 is arranged on the support device 10, and the axis of the guide rail frame 9 is colinear with the axis of the heating furnace and the cooling furnace, and the three are in the same horizontal direction; the drive motor is used to provide power for the push-pull rod 14, so that the push-pull rod 14 can move back and forth along the axis direction of the guide rail frame 9, thereby pushing and pulling the ultra-thin alloy strip to be transmitted between the cooling furnace and the heating furnace.

[0050] It should be noted that the push-pull rod 14 of the present invention is a heat-resistant alloy rod, which can adapt to the furnace environment of the tempering furnace.

[0051] In order to ensure the airtightness of the annealing furnace during the movement of the ultra-thin alloy strip, the push-pull device of the present invention also includes a retractable metal sleeve; the retractable metal sleeve is arranged at one end of the heating furnace away from the cooling furnace, the retractable metal sleeve is connected to the heating furnace and the airtightness of the two is consistent, and the second end of the push-pull rod 14 is arranged in the retractable metal sleeve.

[0052] Compared with the prior art, the present invention sets a retractable metal sleeve outside the push-pull rod 14 to isolate the entire push-pull rod 14 from the environment outside the annealing furnace. In a sealed state, the push-pull rod 14 can be operated to push and pull the burning rack to make it move back and forth in the annealing furnace.

[0053] In order to reduce the heat conduction between the cooling device 6 and the heating device, a partition device 11 is provided between the cooling device 6 and the heating device of the present invention; the partition device 11 is used to isolate the heat transfer between the heating device and the cooling device 6.

[0054] Specifically, Figure 1 As shown, a water circulation is installed in the partition device 11, and the water circulation is used to block the heat transfer between the heating device and the cooling device 6; at the same time, the blocking device extends the length of the cooling zone in the cooling device 6 to ensure that the sample has sufficient cooling space.

[0055] The heating device of the present invention comprises an upper heating furnace body 3 and a lower heating furnace body 4; the space enclosed by the upper heating furnace body 3 and the lower heating furnace body 4 is a heating zone.

[0056] Specifically, the heating device of the present invention includes a heating furnace, which includes an upper heating furnace body 3 and a lower heating furnace body 4. The upper heating furnace body 3 is located directly above the lower heating furnace body 4, and the two together form a heating zone.

[0057] Compared with the prior art, the heating device of the present invention is an open device, and the furnace body can be replaced according to actual usage conditions, which is beneficial to extending the service life of the entire equipment.

[0058] It should be emphasized that the heating zones of the present invention include a first heating zone, a second heating zone, a third heating zone and a fourth heating zone in sequence; wherein the first heating zone is a heating compensation zone, and the second to fourth heating zones are all uniform temperature zones, and the temperature difference in the uniform temperature zones is controlled within the range of ±2°C. Through the thermal compensation in the heating compensation zone, the temperatures of the second to fourth heating zones can be kept consistent; setting up three uniform temperature zones can leave enough heating zones for the sample, avoiding the temperature difference caused by the rapid heat dissipation at both ends of the heating zones, thereby ensuring the temperature of the heat treatment furnace is accurate and constant.

[0059] The above-mentioned heating device also includes multiple independent heating and temperature control systems, which are respectively the first heating body to the fourth heating body and the first temperature control system to the fourth temperature control system; the first heating body and the first temperature control system are arranged on the outer wall of the annealing furnace tube corresponding to the first heating zone, and similarly, the second heating body and the second temperature control system are arranged on the outer wall of the annealing furnace tube corresponding to the second heating zone, the third heating body and the third temperature control system are arranged on the outer wall of the annealing furnace tube corresponding to the third heating zone, and the fourth heating body and the fourth temperature control system are arranged on the outer wall of the annealing furnace tube corresponding to the fourth heating zone; the first heating body to the fourth heating body all use silicon carbon rods, and the first temperature control system to the fourth temperature control system all use existing temperature control programs for temperature control.

[0060] Compared with the prior art, the present invention divides the heating zone of the annealing furnace tube into four sections, and arranges a heating body on the outer wall of the furnace corresponding to each heating zone, and controls the temperature of each heating zone separately. At the set required temperature in the furnace, the four heating zones can be heated collaboratively to ensure that the temperature of the uniform temperature zone is consistent, which can solve the technical problem of large temperature difference in the heating zones.

[0061] In order to conduct annealing research on ultra-thin alloy strips under different atmospheres, the annealing furnace of the present invention also includes a ventilation device; the ventilation device is connected to the cooling device 6 through a gas inlet 7 arranged on the cooling device 6; the ventilation device is used to adjust the ambient atmosphere of the ultra-thin alloy strip during tension annealing, and can control the cooling rate of the sample in the cooling stage together with the cooling device 6.

[0062] Compared with the prior art, the pressure sensor 2 of the present invention can change the tension of the ultra-thin alloy strip during the annealing process, and the ventilation device can enable the ultra-thin alloy strip to undergo annealing experiments under different atmospheres. The combination of the two can realize controllable tension atmosphere protection annealing, thereby exploring the organizational changes of the precision ultra-thin strip during the tension annealing process and effectively improving the material properties of the precision ultra-thin strip.

[0063] In order to reduce the error of the experimental results, the ultra-thin alloy strip of the present invention can be quickly cooled in the cooling furnace. Since the entire annealing furnace is sealed, the cooling rate range depends on the type and flow rate of the hydrogen, nitrogen, and argon gases introduced. The atmosphere is adjusted by the control cabinet 5 to control the cooling rate.

[0064] In order to avoid air pollution, the annealing furnace suitable for tension control of ultra-thin alloy strips of the present invention further includes an exhaust gas treatment device, which is connected to the gas outlet 8 .

[0065] Specifically, the tail gas treatment device can treat toxic gases such as hydrogen, ammonia, etc. When the tail gas is hydrogen, the hydrogen is ignited by an electric ignition device for treatment.

[0066] In order to provide firm and stable support for the push-pull device, the cooling device 6 and the tension device, the support device 10 of the present invention includes a first square three-dimensional bracket, a second square three-dimensional bracket and a third square three-dimensional bracket; the first square three-dimensional bracket is used to support the tension device, the second square three-dimensional bracket is used to support the cooling device 6; the third square three-dimensional bracket is used to support the push-pull device.

[0067] Compared with the prior art, the present invention can stably support the tension device, cooling device 6 and push-pull device by setting the first square three-dimensional frame to the third square three-dimensional frame, thereby avoiding shaking during the annealing experiment and reducing the error of the tension applied by the tension device.

[0068] The annealing furnace suitable for tension control of ultra-thin alloy strips of the present invention also includes a control cabinet 5, which includes a visual interface; the control cabinet 5 is controlled and connected with the tension device, cooling device 6, heating device and ventilation device; the heating device is arranged directly above the control cabinet 5 and the two are designed as one body.

[0069] Specifically, since the tension device is connected to the control cabinet 5, the operator can not only display the tension of the ultra-thin alloy strip through the display interface of the control cabinet 5, but also adjust the tension of the pressure sensor 2 according to the displayed value.

[0070] Compared with existing technicians, the present invention integrates the furnace body and control cabinet 5 of the heating device into an integrated design, which can also reduce the floor space; the tension adjustment, temperature and atmosphere changes are all operated through a visual interface, which greatly simplifies the operating process of the experimenter and facilitates the operation and learning of new experimenters.

[0071] It should be emphasized that the tension device applies tension to the ultra-thin strip, and the evolution of the grain structure during the annealing process is extremely sensitive to the tension and the grain evolution speed is extremely fast, which seriously affects the material properties after annealing. The tension device of the present invention adjusts the tension change of the ultra-thin alloy strip during the annealing process through the pressure sensor 2 and the pressure sensor connecting frame 1, and performs visual operation on the control cabinet 5 interface. The user can select the appropriate tension according to the actual situation of the material annealing process. Since a push-pull device is connected to the right side of the ultra-thin strip, the operator can change the tension at different positions of the heating furnace and the cooling furnace and at different time periods, thereby accurately adjusting the tension and reducing the experimental error in the experimental annealing process of the ultra-thin strip.

[0072] On the other hand, the present invention also provides an annealing method suitable for controlling the tension of an ultra-thin alloy strip, using the above-mentioned annealing furnace suitable for controlling the tension of an ultra-thin alloy strip, comprising the following steps:

[0073] Step 1, placing the sample to be tested on a burning rack in a cooling furnace, one end of the ultra-thin alloy strip to be tested is connected to a tension device, and the burning rack is connected to a push-pull device;

[0074] Step 2: After the heating furnace is raised to the set temperature, the ultra-thin alloy strip is moved into the heating device by using a push-pull device, and the tension, temperature and atmosphere are adjusted by using a control cabinet 5; and tension is applied by a tension device to perform atmosphere tension annealing;

[0075] Step 3: Use a push-pull device to transfer the heated and heat-insulated ultra-thin alloy strip to a cooling furnace for cooling.

[0076] The results show that the active or passive tensile tension of ultra-thin alloy strips during annealing has a significant impact on the performance of the strips. The tension value ranges from 0 to tens of MPa and needs to be precisely measured, and continuous dynamic measurement is required, which can be obtained through precise tension metering.

[0077] It should be emphasized that when the sample is loaded into the annealing furnace, the push-pull device will be pushed to the cooling section to connect with the sample, and then pushed to the constant temperature section after the temperature stabilizes. The entire process is carried out under sealed conditions, and the interior of the heating furnace and the cooling furnace are connected. The pushing device can move unimpeded in the cooling section and the heating section under the drive of the driving motor.

[0078] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. An annealing furnace suitable for tension control of ultra-thin alloy strips, characterized in that: It includes tension device, heating device, push-pull device, cooling device and supporting device, and the whole annealing furnace is sealed; The supporting device is used to support the tension device and the cooling device; the heating device is connected to the cooling device; the tension device is connected to the cooling device, and the tension device is used to apply and monitor the tension change of the ultra-thin alloy strip during the annealing process; The cooling device and the heating device are both hollow furnace tubes, and the cooling device and the heating device are internally connected, that is, the air tightness of the two devices is the same; One end of the ultra-thin alloy strip is connected to the tension device, and the other end is connected to the push-pull device; The tension device also includes a pressure sensor and a pressure sensor connecting frame, and also includes a cylinder and a spring hose, wherein the cylinder is arranged on the support unit, and the cylinder is connected to the spring hose through the pressure sensor connecting frame; a molybdenum wire is arranged in the spring hose, and the pressure sensor is connected to the ultra-thin alloy strip in the cooling device through the molybdenum wire; The heating device includes an upper heating furnace body and a lower heating furnace body; the space enclosed by the upper heating furnace body and the lower heating furnace body is a heating zone; the heating zone includes a first heating zone, a second heating zone, a third heating zone and a fourth heating zone in sequence; wherein the first heating zone is a heating compensation zone, and the second heating zone to the fourth heating zone are all uniform temperature zones, and the temperature difference of the uniform temperature zone is controlled within the range of ±2°C.

2. The annealing furnace suitable for tension control of ultra-thin alloy strips according to claim 1, characterized in that: The tension device comprises a pressure sensor and a pressure sensor connecting frame; the pressure sensor is arranged on the pressure sensor connecting frame; One end of the pressure sensor connecting frame is connected to the ultra-thin alloy strip in the cooling device or the heating device.

3. The annealing furnace suitable for tension control of ultra-thin alloy strips according to claim 2, characterized in that: A partition device is provided between the cooling device and the heating device; The isolation device is used to isolate the heat conduction between the heating device and the cooling device.

4. The annealing furnace suitable for tension control of ultra-thin alloy strips according to claim 1, characterized in that: Also includes a ventilator; The cooling device is provided with a gas inlet and a gas outlet, and the ventilation device is connected with the cooling device through the gas inlet; the ventilation device is used for ventilation during the tension annealing process of the ultra-thin alloy strip.

5. The annealing furnace suitable for tension control of ultra-thin alloy strips according to claim 4, characterized in that: It also includes a tail gas treatment device, which is connected to the gas outlet.

6. The annealing furnace suitable for tension control of ultra-thin alloy strips according to claim 5, characterized in that: The supporting device comprises a first square three-dimensional bracket, a second square three-dimensional bracket and a third square three-dimensional bracket.

7. The annealing furnace suitable for tension control of ultra-thin alloy strips according to claim 6, characterized in that: The first square three-dimensional bracket is used to support the tension device, the second square three-dimensional bracket is used to support the cooling device; and the third square three-dimensional bracket is used to support the push-pull device.

8. The annealing furnace suitable for tension control of ultra-thin alloy strips according to claim 1, characterized in that: Also includes control cabinet.

9. An annealing method suitable for tension control of ultra-thin alloy strips, characterized in that: The annealing treatment is carried out using the annealing furnace suitable for ultra-thin alloy strip tension as described in any one of claims 1 to 8.

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