A dual-purpose unit for producing hot-dip plated and irradiation-cured coated alloy steel sheets

Abstract

The utility model belongs to the steel processing technical field relates to a kind of production hot-dip galvanizing and irradiation solidification coating alloying steel plate dual-purpose unit, including hot-dip galvanizing process section, continuous annealing process cooling channel and irradiation solidification diffusion annealing process section, the hot-dip galvanizing process section includes the reduction annealing furnace, hot-dip galvanizing pot, hot-dip galvanizing process cooling channel and hot-dip galvanizing process water quenching tank that are sequentially arranged, and the inlet of continuous annealing process cooling channel is connected to the outlet of reduction annealing furnace by continuous annealing process deflection roller chamber;The outlet of continuous annealing process cooling channel is connected to the inlet of hot-dip galvanizing process cooling channel;The outlet of hot-dip galvanizing process cooling channel is connected to the inlet of the irradiation solidification diffusion annealing process section, and the outlet of irradiation solidification diffusion annealing process section is connected to the outlet of the hot-dip galvanizing process water quenching tank, and irradiation solidification diffusion annealing process section and hot-dip galvanizing process water quenching tank are connected in parallel.The utility model's dual-purpose unit improves the adaptability of production line and product diversity, and reduces the investment cost of new production line.

Description

Technical Field

[0001] This utility model belongs to the field of steel processing technology, and in particular relates to a dual-purpose unit for producing hot-dip galvanized and irradiation-cured alloyed steel plates. Background Technology

[0002] In recent years, the field of continuous steel plate processing has seen continuous development of new products and technologies, but these mainly focus on traditional hot-dip galvanizing techniques. The main technological development directions are continuous irradiation curing and continuous PVD (Physical Vapor Deposition) technology. Irradiation-cured coatings, through ultraviolet or electron beam irradiation, can cure within seconds, significantly shortening the production cycle and providing ample time windows for existing steel metallurgical processes. Furthermore, the coatings contain no organic solvents and emit no volatile organic compounds (VOCs). On the other hand, continuous PVD technology forms a thin film on the steel plate surface through physical vapor deposition under vacuum conditions. It is non-toxic and does not release harmful substances, and can use various materials for coating, such as titanium, chromium, and carbides, giving the products high hardness, low coefficient of friction, and high wear resistance, meeting the needs of different industrial applications. Both technologies comply with environmental protection requirements and the concept of green manufacturing.

[0003] While both of these technologies excel in environmental friendliness and certain performance aspects, they both encounter bottlenecks in practical industrial applications. For instance, irradiation-cured coatings rely on specific wavelengths of irradiation, and the performance of irradiation-cured coatings struggles to meet the stringent requirements of the metallurgical and steel industries regarding corrosion resistance, adhesion, and mechanical strength. Continuous PVD technology, on the other hand, demands high substrate temperature, surface cleanliness, and system vacuum levels, resulting in very low production efficiency. This limits their application in certain large-scale industrial scenarios.

[0004] Furthermore, existing hot-dip galvanizing production lines typically only produce single-type coating products and cannot quickly switch to producing multiple functional coatings (such as zinc-aluminum-magnesium alloy coatings, color coatings, and high-temperature resistant coatings). Therefore, the industry needs a new process and unit that can be modified based on existing hot-dip galvanizing production lines to achieve short-process, low-cost, multi-functional coating production and improve production efficiency. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a dual-purpose unit for producing hot-dip galvanized and irradiation-cured coated alloyed steel plates.

[0006] To achieve the above objectives, the technical solution adopted is: a dual-purpose unit for producing hot-dip galvanized and irradiation-cured alloyed steel plates, comprising a hot-dip galvanizing process section, which includes a reduction annealing furnace, a hot-dip galvanizing pot, a hot-dip galvanizing process cooling channel, and a hot-dip galvanizing process water quenching tank arranged sequentially; it also includes a continuous annealing process cooling channel and an irradiation-curing diffusion annealing process section. The inlet of the continuous annealing process cooling channel is connected to the outlet of the reduction annealing furnace through a continuous annealing process deflector roller chamber, allowing the steel strip to selectively enter the continuous annealing process cooling channel and bypass the hot-dip galvanizing pot; the continuous annealing process cooling... The outlet of the channel is connected to the inlet of the hot-dip galvanizing process cooling channel, allowing the steel strip treated by the continuous annealing process cooling channel to enter the hot-dip galvanizing process cooling channel. The outlet of the hot-dip galvanizing process cooling channel is connected to the inlet of the irradiation curing diffusion annealing process section, and the outlet of the irradiation curing diffusion annealing process section is connected to the outlet of the hot-dip galvanizing process water quenching tank. This allows the irradiation curing diffusion annealing process section and the hot-dip galvanizing process water quenching tank to be connected in parallel, enabling the steel strip to selectively bypass the hot-dip galvanizing process water quenching tank and be processed via the irradiation curing diffusion annealing process section.

[0007] Based on the above technical solution, the present invention can be further improved as follows: Furthermore, the irradiation curing diffusion annealing process section includes a roller coating irradiation curing process section and a diffusion annealing alloying process section arranged in series. The inlet of the roller coating irradiation curing process section is connected to the outlet of the cooling channel of the hot-dip galvanizing process, and the outlet of the diffusion annealing alloying process section is connected to the outlet of the water quenching tank of the hot-dip galvanizing process. Thus, the process path formed by the roller coating irradiation curing process section and the diffusion annealing alloying process section in series is arranged in parallel with the water quenching tank of the hot-dip galvanizing process.

[0008] The beneficial effects of adopting the above-mentioned further technical solutions are as follows: the coating curing and alloying processes are integrated into a continuous process segment and connected in parallel with the water quenching tank, so that the steel strip can continuously complete the entire process of coating, curing and alloying after the substrate is cooled, thus ensuring the process continuity and efficiency of functional coating production.

[0009] Furthermore, the roller coating irradiation curing process section includes multiple roller coating machines and irradiation curing devices, with the roller coating machines and irradiation curing devices arranged alternately.

[0010] The beneficial effects of adopting the above-mentioned further technical solutions are as follows: the use of alternating roller coating and curing devices facilitates the combination of single or multiple coatings and instant curing processes, which is conducive to precise control of coating thickness and uniformity, and meets the requirements of different functional coatings for film thickness and performance.

[0011] Furthermore, the irradiation curing device is an ultraviolet curing device, and the irradiation curing device is equipped with UV lamp components that are relatively staggered.

[0012] The beneficial effects of adopting the above-mentioned further technical solutions are as follows: staggered UV lamp components can achieve uniform and rapid irradiation and curing of the coating on the upper and lower surfaces of the steel strip, which helps to avoid irradiation blind spots and improve curing efficiency and coating quality stability.

[0013] Furthermore, the diffusion annealing alloying process section includes an induction heating unit and an annealing air cooling unit arranged sequentially.

[0014] The beneficial effects of adopting the above-mentioned further technical solutions are as follows: induction heating can realize the rapid heating and alloying reaction of the coating metal components, while the subsequent air cooling unit can controllably cool the alloyed steel strip, thus jointly ensuring the formation quality and microstructure properties of the alloyed coating.

[0015] Furthermore, the continuous cooling process cooling channel is an upward protective gas cooling channel, which includes an inlet sealing chamber, at least one protective gas circulation final cooling unit, and an outlet sealing chamber arranged in sequence.

[0016] The beneficial effect of adopting the above-mentioned further technical solutions is that it can effectively prevent the high-temperature steel strip after continuous annealing from being oxidized during the cooling process.

[0017] Furthermore, a final cooling channel section and a final cooling outlet turning chamber are sequentially provided between the outlet of the continuous cooling process cooling channel and the outlet sealing chamber.

[0018] The beneficial effects of adopting the above-mentioned further technical solutions are as follows: the channel section after final cooling ensures the uniformity of the steel strip temperature, while the turning chamber realizes the smooth turning and transition of the steel strip from the continuous annealing process cooling channel to the subsequent process section, thus ensuring the stability of the production line operation.

[0019] Furthermore, it also includes a switching device disposed after the cooling channel of the hot-dip galvanizing process, the switching device being used to selectively guide the steel strip path to the water quenching tank of the hot-dip galvanizing process or the irradiation curing diffusion annealing process section.

[0020] The beneficial effect of adopting the above-mentioned further technical solution is that the direction of the steel strip is controlled by the switching device, thereby realizing the switching of the process mode.

[0021] Furthermore, the reduction annealing furnace, the hot-dip galvanizing pot, the hot-dip galvanizing process cooling channel, and the hot-dip galvanizing process water quenching tank are all equipped with correction rollers and / or steering rollers.

[0022] The beneficial effects of adopting the above-mentioned further technical solutions are as follows: the setting of the correction roller and the steering roller ensures the stability and centering of the steel strip throughout the entire production line, especially during long strokes and between multiple process sections, prevents deviation, and ensures stable production process and product quality.

[0023] Furthermore, it also includes a finishing and straightening section, which is located after the hot-dip galvanizing process water quenching tank and the irradiation curing diffusion annealing process section, and is used to finish the surface of the steel plate as well as to flatten and stretch the plate shape.

[0024] The beneficial effects of adopting the above-mentioned further technical solutions are that, regardless of the process path the steel strip takes, the surface quality and shape can be improved by a unified finishing and straightening section before the finished product, thus unifying the final appearance and mechanical properties of the product and improving product quality.

[0025] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model constructs a dual-purpose unit by connecting the cooling channel of the continuous annealing process in parallel with the hot-dip galvanizing pot, and connecting the irradiation curing diffusion annealing process section in parallel with the hot-dip galvanizing process water quenching tank, so that the same production line can be flexibly switched to produce traditional hot-dip galvanized steel sheets or irradiation curing alloyed coated steel sheets, which improves the adaptability of the production line and the diversity of products, while making full use of the original equipment and reducing the investment cost of new production lines. Attached Figure Description

[0026] Figure 1 Layout diagram of a dual-purpose unit for producing hot-dip galvanized and irradiation-cured alloyed steel plates.

[0027] In the diagram: 1. Reduction annealing furnace; 2. Hot-dip galvanizing pot; 3. Cooling channel for hot-dip galvanizing process; 4. Water quenching tank for hot-dip galvanizing process; 5. Roller coater; 6. Irradiation curing device; 7. Induction heating unit; 8. Annealing air cooling unit; 9. Inlet sealing chamber; 10. Protective gas circulation final cooling unit; 11. Outlet sealing chamber; 12. Final cooling channel section; 13. Final cooling outlet turning chamber; 14. Straightening roller; 15. Turning roller; 16. Turning device; 17. Finishing and straightening section. Detailed Implementation

[0028] The present invention will be described below with reference to examples. The examples are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0029] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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.

[0031] like Figure 1 As shown, a dual-purpose unit for producing hot-dip galvanized and irradiation-cured alloyed steel sheets includes a hot-dip galvanizing section. The hot-dip galvanizing section comprises a reduction annealing furnace 1, a hot-dip galvanizing pot 2, a hot-dip galvanizing cooling channel 3, and a hot-dip galvanizing water quenching tank 4, arranged sequentially. It also includes a continuous annealing cooling channel and an irradiation-curing diffusion annealing section. The inlet of the continuous annealing cooling channel is connected to the outlet of the reduction annealing furnace 1 via a continuous annealing deflector roller 15 chamber, allowing the steel strip to selectively enter the continuous annealing cooling channel while bypassing the hot-dip galvanizing pot 2. The outlet of the continuous annealing cooling channel is connected to... The steel strip, after being processed by the continuous annealing cooling channel, enters the hot-dip galvanizing cooling channel 3 through the inlet of the hot-dip galvanizing cooling channel 3. The outlet of the hot-dip galvanizing cooling channel 3 is connected to the inlet of the irradiation curing diffusion annealing process section, and the outlet of the irradiation curing diffusion annealing process section is connected to the outlet of the hot-dip galvanizing water quenching tank 4. This allows the irradiation curing diffusion annealing process section and the hot-dip galvanizing water quenching tank 4 to be connected in parallel, enabling the steel strip to selectively bypass the hot-dip galvanizing water quenching tank 4 and be processed through the irradiation curing diffusion annealing process section.

[0032] The irradiation-curing diffusion annealing process section includes a roll coating irradiation-curing process section and a diffusion annealing alloying process section arranged in series. The inlet of the roll coating irradiation-curing process section is connected to the outlet of the hot-dip galvanizing cooling channel 3, and the outlet of the diffusion annealing alloying process section is connected to the outlet of the hot-dip galvanizing water quenching tank 4. This allows the process path formed by the series connection of the roll coating irradiation-curing process section and the diffusion annealing alloying process section to be arranged in parallel with the hot-dip galvanizing water quenching tank 4. The roll coating irradiation-curing process section is used to coat the cooled steel strip surface with an irradiation-curable metal or alloy coating liquid and cure it. The diffusion annealing alloying process section is used to perform induction heating alloying and subsequent cooling of the cured coating. By integrating the coating curing and alloying processes into a continuous process section and connecting it in parallel with the water quenching tank, the steel strip can continuously complete the entire process of coating, curing, and alloying after the substrate is cooled, ensuring the process continuity and efficiency of functional coating production.

[0033] The roller coating irradiation curing process section includes one or more roller coating machines 5 and irradiation curing devices 6. When multiple roller coating machines 5 and irradiation curing devices 6 are used, the roller coating machines 5 and the irradiation curing devices 6 are set up alternately, which facilitates the combination of single or multiple coatings and instant curing processes. This is beneficial for accurately controlling the coating thickness and uniformity, and meeting the requirements of different functional coatings for film thickness and performance.

[0034] The irradiation curing device 6 is an ultraviolet curing device, and its interior is equipped with UV lamp assemblies that are arranged opposite to each other and staggered. The staggered arrangement of the UV lamp assemblies enables uniform and rapid irradiation curing of the coating on the upper and lower surfaces of the steel strip, which helps to avoid irradiation blind spots and improves curing efficiency and coating quality stability.

[0035] The diffusion annealing alloying process section includes an induction heating unit 7 and an annealing air-cooling unit 8 arranged sequentially. Induction heating enables rapid heating and alloying reaction of the coating metal components, while the subsequent annealing air-cooling unit 8 provides controllable cooling of the alloyed steel strip, together ensuring the formation quality and microstructure of the alloyed coating.

[0036] The continuous annealing process cooling channel is an upward protective gas cooling channel, which includes an inlet sealing chamber 9, at least one protective gas circulation final cooling unit 10 and an outlet sealing chamber 11 arranged in sequence, which can effectively prevent the high-temperature steel strip after continuous annealing from being oxidized during the cooling process.

[0037] Between the outlet of the continuous annealing cooling channel and the outlet sealing chamber 11, there is a final cooling channel section 12 and a final cooling outlet turning chamber 13 arranged sequentially. The final cooling channel section 12 ensures the uniformity of the steel strip temperature, while the turning chamber enables the steel strip to smoothly turn and transition from the continuous annealing cooling channel to the subsequent process section, ensuring the stability of the production line operation.

[0038] The dual-purpose unit for producing hot-dip galvanized and irradiation-cured alloyed steel sheets also includes a switching device located after the cooling channel 3 of the hot-dip galvanizing process. This switching device selectively guides the steel strip path to either the water quenching tank 4 of the hot-dip galvanizing process or the irradiation-curing diffusion annealing process section. By controlling the direction of the steel strip through the switching device, the process mode can be switched.

[0039] The reduction annealing furnace 1, hot-dip galvanizing pot 2, hot-dip galvanizing process cooling channel 3, and hot-dip galvanizing process water quenching tank 4 are all equipped with a correction roller 14 and / or a steering roller 15. The setting of the correction roller 14 and steering roller 15 ensures the stability and centering of the steel strip throughout the entire production line, especially during long strokes and between multiple process sections, preventing deviation and ensuring stable production process and product quality.

[0040] The dual-purpose unit for producing hot-dip galvanized and irradiation-cured alloyed steel plates also includes a finishing and straightening section 17. This section 17 is located after the hot-dip galvanizing process water quenching tank 4 and the irradiation curing diffusion annealing process section, and is used to finish the surface of the steel plate as well as to flatten and stretch the plate shape. Regardless of the process path the steel strip takes, the surface quality and plate shape can be improved by the unified finishing and straightening section 17 before the finished product, thus standardizing the final appearance and mechanical properties of the product and improving product quality.

[0041] This utility model's dual-purpose unit for producing hot-dip galvanized and irradiation-cured alloyed steel plates has at least two process paths: The first process path can be used to produce irradiated cured alloyed coated steel sheets. The process flow is as follows: After the steel strip is drawn out from the reduction annealing furnace 1, it selectively bypasses the hot-dip galvanizing pot 2 and first enters the continuous annealing process turning roller 15 chamber to complete the path switching. Then it enters the continuous annealing process inlet sealing chamber 9 to establish a sealed environment. Next, it passes through the continuous annealing process protective gas circulation final cooling unit 10 and is controlled to cool under a protective atmosphere. After cooling, the steel strip passes through the continuous annealing process final cooling channel section 12 and the continuous annealing process final cooling turning roller 15 chamber in sequence, and finally leaves through the continuous annealing process final cooling outlet sealing chamber 11. Subsequently, the steel strip is directed by the steering roller 15 at the top of the hot-dip galvanizing tower and enters the hot-dip galvanizing cooling channel 3, where it is precisely cooled to the substrate surface temperature required for the irradiation curing roll coating process.

[0042] After reaching the predetermined temperature, the steel strip is introduced into the roller coating machine 5 through the turning device 16, and the irradiation-curable metal or alloy coating liquid is uniformly coated on the substrate surface; the coated steel strip immediately enters the irradiation curing machine to make the coating cure quickly.

[0043] After curing, the coated steel strip then enters the diffusion annealing alloying stage. First, the coating is heated to the alloying temperature by the induction heating unit 7, so that it undergoes a diffusion reaction with the substrate to form an alloy layer. Then, it enters the diffusion annealing air cooling unit 8 for cooling to complete the alloying process.

[0044] Finally, the steel strip that has completed diffusion annealing is oriented by the steering roller 15, corrected for deviation by the hot-dip galvanizing process correction roller 14, and enters the finishing and straightening section 17 shared by the unit for final shape correction and surface finishing. Finally, it is wound up by the coiling equipment at the exit section to become the finished irradiated cured alloyed coated steel sheet.

[0045] In the first process path, various functional alloy coatings or non-metallic coatings are prepared on the clean steel strip surface after continuous annealing through processes such as roll coating, curing, and alloying.

[0046] The second process route can be used to produce hot-dip galvanized steel sheets, and its process flow is as follows: After being drawn from the reduction annealing furnace 1, the steel strip directly enters the hot-dip galvanizing tank 2, where a zinc or zinc alloy coating is formed on its surface through the hot-dip galvanizing process. After coating, the steel strip is guided by the steering roller 15 at the top of the hot-dip galvanizing tower and enters the air-cooling channel for initial controlled cooling of the coating. Subsequently, the steel strip enters the hot-dip galvanizing water quenching tank 4, where the coating is rapidly cooled and solidified by water quenching. After water quenching, the steel strip is corrected for deviation by the hot-dip galvanizing process straightening roller 14 and enters the unit's shared finishing and straightening section 17 for shape correction and surface finishing. Finally, it is coiled at the exit section by the coiling equipment to become the finished hot-dip galvanized steel sheet.

[0047] It should be further explained that the continuous annealing process refers to the continuous annealing process. In this patent, the continuous annealing process is a continuous processing system integrated into the original production line, which includes gas protection and controllable cooling. It transforms the annealed hot substrate into a cold substrate suitable for high-quality roll coating, preparing it for subsequent roll coating. During the roll coating stage, various metal powders can be added to the irradiation curing coating. After curing and diffusion annealing, a new coating-to-plating process is realized.

[0048] This invention, based on existing hot-dip galvanized and zinc alloy coated steel sheet production units, achieves flexibility in producing multiple functional coating products on the same unit by adding a continuous annealing section, an irradiation curing section, and a diffusion annealing section. This improved scheme can not only prepare highly corrosion-resistant zinc-aluminum-magnesium, aluminum-zinc-silicon, aluminum-silicon, and zinc-magnesium rare earth alloy coatings, but also independently produce various functional coating products such as colored coatings, high-temperature resistant and strong alkali-resistant coatings, magnetic coatings, and self-cleaning coatings. By adding rare earth elements or other elemental and alloy powders to zinc-aluminum alloy powders according to functional requirements, and then subjecting them to diffusion annealing treatment, the metal components in the coating form a dense and firmly bonded alloy layer with the substrate. This significantly improves the corrosion resistance, decorative properties, and other functional characteristics of the steel sheet while maintaining its original mechanical properties.

[0049] This utility model's unit can produce a variety of products, not only increasing the added value of a single hot-dip galvanized steel sheet production line, but also forming a platform-based, universal coating process. It can produce various functional surface coating products with high degree of freedom, and features low investment cost, low operating cost, high efficiency, and high yield. It can partially replace the continuous PVD production line in producing high-value-added steel sheet vacuum coating products, and it is convenient to switch products, realizing short-process operation.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-purpose unit for producing hot-dip galvanized and irradiation-cured alloyed steel plates, comprising a hot-dip galvanizing process section, wherein the hot-dip galvanizing process section comprises a reduction annealing furnace (1), a hot-dip galvanizing pot (2), a hot-dip galvanizing process cooling channel (3), and a hot-dip galvanizing process water quenching tank (4) arranged sequentially, characterized in that: It also includes a continuous annealing process cooling channel and an irradiation curing diffusion annealing process section. The inlet of the continuous annealing process cooling channel is connected to the outlet of the reduction annealing furnace (1) through the continuous annealing process turning roller (15) chamber; the outlet of the continuous annealing process cooling channel is connected to the inlet of the hot-dip plating process cooling channel (3); the outlet of the hot-dip plating process cooling channel (3) is connected to the inlet of the irradiation curing diffusion annealing process section, and the outlet of the irradiation curing diffusion annealing process section is connected to the outlet of the hot-dip plating process water quenching tank (4), so that the irradiation curing diffusion annealing process section and the hot-dip plating process water quenching tank (4) are arranged in parallel.

2. The dual-purpose unit for producing hot-dip galvanized and irradiation-cured alloyed steel plates according to claim 1, characterized in that, The irradiation curing and diffusion annealing process section includes a roller coating irradiation curing process section and a diffusion annealing alloying process section arranged in series. The inlet of the roller coating irradiation curing process section is connected to the outlet of the hot-dip galvanizing process cooling channel (3), and the outlet of the diffusion annealing alloying process section is connected to the outlet of the hot-dip galvanizing process water quenching tank (4). Thus, the process path formed by the roller coating irradiation curing process section and the diffusion annealing alloying process section in series is arranged in parallel with the hot-dip galvanizing process water quenching tank (4).

3. The dual-purpose unit for producing hot-dip galvanized and irradiation-cured alloyed steel plates according to claim 2, characterized in that, The roller coating irradiation curing process section includes multiple roller coating machines (5) and irradiation curing devices (6), with the roller coating machines (5) and the irradiation curing devices (6) being arranged alternately.

4. The dual-purpose unit for producing hot-dip galvanized and irradiation-cured alloyed steel plates according to claim 3, characterized in that, The irradiation curing device (6) is an ultraviolet curing device, and the irradiation curing device (6) is provided with UV lamp components that are arranged opposite to each other and staggered.

5. The dual-purpose unit for producing hot-dip galvanized and irradiation-cured alloyed steel plates according to any one of claims 2-4, characterized in that, The diffusion annealing alloying process section includes an induction heating unit (7) and an annealing air cooling unit (8) arranged in sequence.

6. The dual-purpose unit for producing hot-dip galvanized and irradiation-cured alloyed steel plates according to claim 1, characterized in that, The continuous cooling channel is an upward protective gas cooling channel, which includes an inlet sealing chamber (9), at least one protective gas circulation final cooling unit (10), and an outlet sealing chamber (11) arranged in sequence.

7. The dual-purpose unit for producing hot-dip galvanized and irradiation-cured alloyed steel plates according to claim 6, characterized in that, The outlet of the continuous cooling process cooling channel and the outlet sealing chamber (11) are provided with a final cooling channel section (12) and a final cooling outlet turning chamber (13) in sequence.

8. The dual-purpose unit for producing hot-dip galvanized and irradiation-cured alloyed steel plates according to claim 1, characterized in that, It also includes a switching device located after the hot-dip galvanizing process cooling channel (3), the switching device being used to selectively guide the steel strip path to the hot-dip galvanizing process water quenching tank (4) or the irradiation curing diffusion annealing process section.

9. The dual-purpose unit for producing hot-dip galvanized and irradiation-cured alloyed steel plates according to claim 1, characterized in that, The reduction annealing furnace (1), hot-dip galvanizing pot (2), hot-dip galvanizing process cooling channel (3) and hot-dip galvanizing process water quenching tank (4) are all equipped with a correction roller (14) and / or a steering roller (15).

10. The dual-purpose unit for producing hot-dip galvanized and irradiation-cured alloyed steel plates according to claim 1, characterized in that, It also includes a finishing and straightening section (17), which is located after the hot-dip galvanizing process water quenching tank (4) and the irradiation curing diffusion annealing process section, and is used to finish the surface of the steel plate and to flatten and stretch the plate shape.

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