Production system of steel-aluminum composite board

Abstract

The utility model relates to the field of composite board production, in particular to a steel-aluminum composite board production system which comprises a partition preheating mechanism, a heating mechanism, a rolling extrusion mechanism, a detection mechanism and a composite board cutting machine, and a first conveying mechanism used for conveying boards is arranged among the partition preheating mechanism, the heating mechanism, the rolling extrusion mechanism, the detection mechanism and the composite board cutting machine. The zoning preheating mechanism comprises a layered heating zone and a heating and heat preservation synthesis zone, the layered heating zone comprises a first heating zone and a second heating zone which are vertically arranged at intervals, a plurality of heating zones with different temperature sections are arranged in the first heating zone and the second heating zone, and the first heating zone and the second heating zone are used for heating aluminum plates and steel plates correspondingly; the aluminum plate and the steel plate are conveyed into the heating and heat preservation synthesis area through the second conveying mechanism and the first conveying mechanism to be overlapped. According to the utility model, the production of the steel-aluminum composite board can be completed at one time, the automation level is high, the batch production of the steel-aluminum composite board can be realized, the processing time of the steel-aluminum composite board is shortened, and the productivity and the production efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the field of composite plate production, and specifically to a production system for steel-aluminum composite plates. Background Art

[0002] Steel-aluminum composite plates are mainly applied to occasions with large load impact force and isolation of potential difference, etc. There are strict requirements for the hardness, wear resistance and impact resistance of the materials. It is very difficult to meet the above requirements simultaneously on the same material. At present, the domestic production of steel-aluminum composite plates mainly adopts the explosion welding forming process. The explosion welding process uses explosives as the energy source. Through the high temperature and high pressure obtained by the explosion of explosives, a high-pressure pulse load is generated to push the aluminum plate to collide with the steel plate at a high inclination. Its loading stress is much higher than the yield strength of the two metal materials. The method of instantaneously intertwining and occurring in the adjacent area of the action point and moving at high speed, etc., realizes the metallurgical bonding of the two metals, and the shape of the bonding area presents a wavy metallurgical bond.

[0003] However, the explosion welding process has restrictions such as the control of explosives, strict site requirements, high personnel requirements, and high weather requirements. And the production process involves multiple processes of off-site production, such as explosion composite, ultrasonic testing, heat treatment, leveling, cutting, surface treatment, etc. This makes the whole production process more complex, and the composite plates formed by explosion welding have disadvantages such as low finished product rate, high danger coefficient, and limited production capacity.

[0004] Therefore, it is urgent to seek a production system that can replace the explosion welding forming of existing steel-aluminum composite plates. Content of the Utility Model

[0005] The purpose of the utility model is to provide a production system for steel-aluminum composite plates, which can complete the production of steel-aluminum composite plates at one time, has a high automation level, realizes the batch production of steel-aluminum composite plates, shortens the processing time of steel-aluminum composite plates, improves the production capacity and production efficiency, greatly reduces the batch production threshold and production cost, is not affected by weather and explosion site restrictions, has low professional requirements for personnel, can greatly improve the production efficiency and production capacity of steel-aluminum composite plate products, greatly reduce the number of production units and production personnel participating in production, and reduce the production cost.

[0006] To solve the above technical problems, the utility model provides a production system for steel-aluminum composite plates, including a partition preheating mechanism, a heating mechanism, a rolling and extrusion mechanism, a detection mechanism and a composite plate cutting machine arranged in sequence from left to right. A first transmission mechanism for transmitting plates is arranged between the partition preheating mechanism, the heating mechanism, the rolling and extrusion mechanism, the detection mechanism and the composite plate cutting machine;

[0007] The partition preheating mechanism includes a layered heating zone and a heating and heat-preserving synthesis zone arranged in sequence from left to right. The layered heating zone includes a first heating zone and a second heating zone arranged at intervals up and down. A number of heating zones with different temperature segments are provided in both the first heating zone and the second heating zone. The first heating zone and the second heating zone are respectively used for heating aluminum plates and steel plates. The aluminum plates and the steel plates are respectively transported to the heating and heat-preserving synthesis zone through a second conveying mechanism and the first conveying mechanism. An electric gate for positioning the steel plate and a grating sensor for detecting the position of the steel plate are provided in the heating and heat-preserving synthesis zone. The aluminum plate is placed above the steel plate by a robotic arm to achieve overlapping. The grating sensor is connected to a control system through an electrical signal, and the control system controls the opening and closing of the electric gate;

[0008] The overlapped plates are sequentially transported through the first conveying mechanism to the heating mechanism, the rolling and extrusion mechanism, the detection mechanism, and the composite plate cutting machine for processing.

[0009] Further, there are four heating zones with different temperature segments. The four heating zones are arranged in sequence and are respectively a first heating zone, a second heating zone, a third heating zone, and a fourth heating zone. The temperature of the first heating zone is 400±40°C, the temperature of the second heating zone is 460±30°C, the temperature of the third heating zone is 480±20°C, and the temperature of the fourth heating zone is 500±20°C.

[0010] Further, the heating mechanism is an electromagnetic induction heating device, and the heating temperature of the electromagnetic induction heating device is 520±20°C.

[0011] Further, the second conveying mechanism includes a horizontal feeding section and an inclined discharging section connected to each other. The horizontal feeding section is arranged in the first heating zone, and the inclined discharging section is arranged in the heating and heat-preserving synthesis zone.

[0012] Further, the first conveying mechanism and the second conveying mechanism are roller conveyors.

[0013] Further, the rolling and extrusion mechanism includes at least two rollers arranged up and down. The upper and lower rollers are used for rolling aluminum plates and steel plates, and the inner cavity of each roller is filled with a heat-conducting medium.

[0014] Further, the detection mechanism is a water immersion ultrasonic flaw detector.

[0015] The beneficial effects of the present utility model are:

[0016] 1. The production system of the present utility model can complete the production of steel-aluminum composite plates at one time, with a high level of automation, not affected by weather and explosion site limitations. By replacing multiple off-site processes involved in the original explosive welding forming process with a multi-temperature section plate preheating - electromagnetic induction heating - hot rolling forming - ultrasonic on-line detection - cutting process, it can greatly improve the production efficiency and production capacity of steel-aluminum composite plate products, significantly reduce the number of production units and production personnel involved, reduce production costs, enable the batch production of steel-aluminum composite plates, shorten the processing time of steel-aluminum composite plates, and improve production capacity and production efficiency.

[0017] 2. The present utility model preheats the upper aluminum plate and the lower steel plate through four different temperature sections respectively, and then, by providing an electric gate for positioning the steel plate and a grating sensor for detecting the position of the steel plate in the heating and heat preservation synthesis area, it can accurately position the steel plate, facilitating the overlap of the upper aluminum plate and the lower steel plate. Specifically, after the grating sensor senses the position of the lower steel plate, it sends an electrical signal to the control system. The control system controls the roller conveyor to stop, and at the same time controls the electric gate to position the lower steel plate. The upper aluminum plate is grabbed by a robot controlled by a program and then placed on the lower steel plate and aligned to form a stacked plate structure, improving the finished product rate of the subsequent steel-aluminum composite plate, enhancing the automated operation, and reducing the manual workload.

[0018] 3. In the present utility model, the rolling and extrusion mechanism includes at least two upper and lower rollers, and the inner cavity of each roller is filled with a heat-conducting medium. This design improves the finished product rate of the subsequent steel-aluminum composite plate, can hot-roll the stacked plates under the action of a 100T rolling force, reduce the total height of the aluminum plate and the steel plate by about 10% - 15%, and enable the upper aluminum plate and the lower steel plate to be bite-compounded and formed through rolling. The intermediate transition layer between the aluminum plate and the steel plate presents a corrugated interface, which is consistent with the corrugated interface presented in the middle of the composite plate formed by explosive welding after high-magnification inspection, improving the forming rate of the composite plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the present utility model, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic structural diagram of the production system of the steel-aluminum composite plate of the present utility model;

[0021] In the figure: 1 - First conveying mechanism, 3 - Heating mechanism, 4 - Rolling and extrusion mechanism, 5 - Detection mechanism, 6 - Composite sheet cutting machine, 7 - Second conveying mechanism, 21 - Layered heating zone, 22 - Heating and heat preservation synthesis zone, 71 - Horizontal feeding section, 72 - Oblique discharging section, 211 - First heating zone, 212 - Second heating zone, 201 - Heating zone 1, 202 - Heating zone 2, 203 - Heating zone 3, 204 - Heating zone 4, 41 - Roll. Detailed implementation mode

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] In a specific embodiment of the present invention, as Figure 1 shown, a production system for steel-aluminum composite sheets includes a partition preheating mechanism, a heating mechanism 3, a rolling and extrusion mechanism 4, a detection mechanism 5, and a composite sheet cutting machine 6 arranged in sequence from left to right. A first conveying mechanism 1 for transporting sheets is provided between the partition preheating mechanism 2, the heating mechanism 3, the rolling and extrusion mechanism 4, the detection mechanism 5, and the composite sheet cutting machine 6;

[0024] In this embodiment, the partition preheating mechanism is a roller hearth heat treatment furnace with upper and lower layers to achieve the preheating of the sheet metal. Specifically, the partition preheating mechanism includes a layered heating zone 21 and a heating and heat preservation synthesis zone 22 arranged in sequence from left to right. The layered heating zone 21 includes a first heating zone 211 and a second heating zone 212 arranged at intervals up and down. A number of heating zones with different temperature segments are provided in both the first heating zone 211 and the second heating zone 212. The first heating zone 211 and the second heating zone 212 are respectively used to heat aluminum sheet metal and steel sheet metal. The aluminum sheet metal and the steel sheet metal are respectively transported to the heating and heat preservation synthesis zone 22 through the second conveyor mechanism 7 and the first conveyor mechanism 1. In this embodiment, the first conveyor mechanism 1 and the second conveyor mechanism 7 are roller conveyors. An electric gate (not shown in the figure) for positioning the steel sheet metal and a grating sensor (not shown in the figure) for detecting the position of the steel sheet metal are provided in the heating and heat preservation synthesis zone 22. The aluminum sheet metal is placed above the steel sheet metal by a robotic arm to achieve overlapping. The grating sensor is connected to the control system through an electrical signal. The control system controls the opening and closing of the electric gate. Specifically, after the grating sensor senses the position of the lower-layer steel sheet metal, it sends an electrical signal to the control system. The control system controls the roller conveyor to stop and controls the electric gate to lower to position the lower-layer steel sheet metal. The upper-layer aluminum sheet metal is grabbed by a robotic arm controlled by a program and placed on the lower-layer steel sheet metal and aligned to form an overlapping (upper and lower superposition) sheet metal structure. After a series of actions are completed, the electric gate is opened and returns to the origin position, and the roller conveyor restarts the transmission action. The upper and lower superposed sheet metals are sequentially transported to the heating mechanism 3, the rolling and extrusion mechanism 4, the detection mechanism 5, and the composite sheet metal cutting machine 6 through the first conveyor mechanism 1 for processing. Specifically, in this embodiment, the heating mechanism 3 is an electromagnetic induction heating device, and the heating temperature of the electromagnetic induction heating device is 520 ± 20 °C.

[0025] Specifically, in this embodiment, there are four heating zones with different temperature segments. The four heating zones are arranged in sequence, and the four heating zones are respectively a heating zone 201, a heating zone 202, a heating zone 203, and a heating zone 204. The temperature of the heating zone 201 is 400 ± 40 °C, the temperature of the heating zone 202 is 460 ± 30 °C, the temperature of the heating zone 203 is 480 ± 20 °C, and the temperature of the heating zone 204 is 500 ± 20 °C; the upper-layer aluminum sheet metal and the lower-layer steel sheet metal are preheated through four different temperature segments respectively.

[0026] Specifically, in this embodiment, the second conveying mechanism 7 includes a transverse feeding section 71 and an oblique discharging section 72 which are connected to each other. The transverse feeding section 71 is arranged in the first heating zone 211, and the oblique discharging section 72 is arranged in the heating and insulation synthesis zone 22. After the preheating of the upper aluminum plate is completed, the position of the steel plate is positioned by the electric gate, and then the aluminum plate is grabbed by the robotic arm and placed on the lower steel plate and aligned. Of course, in the production process, each aluminum plate is composited with the corresponding steel plate to be composited, and can be mass-produced through the production system of the utility model.

[0027] like Figure 1 As shown, in this embodiment, the rolling and extrusion mechanism 4 includes at least two rollers 41 arranged up and down, and the upper and lower rollers 41 are used to roll aluminum plates and steel plates. The inner cavity of each roller 41 is filled with a heat-conducting medium, and can hot-roll the upper and lower superimposed plates under the action of a rolling force of 100T, and can reduce the total height of the aluminum plate and the steel plate by about 10%-15%, so that the upper aluminum plate and the lower steel plate are occluded and composited by rolling, and the transition layer between the aluminum plate and the steel plate presents a corrugated interface. After high-magnification detection, the corrugation of the middle interface of the steel-aluminum composite plate formed by explosion welding is consistent; the steel-aluminum composite plate formed by hot rolling technology can fully meet the current performance index requirements of the automotive, aerospace, shipbuilding and other fields for the mechanical properties, tensile shear force, pull-off force and other performance indicators of the composite plate.

[0028] In this embodiment, the detection mechanism 5 is a water immersion ultrasonic flaw detector. After the steel-aluminum composite plate is hot-rolled and formed, it goes through an online water immersion ultrasonic detection process, and the unqualified areas are recorded and marked with codes after being removed from the water. Finally, the steel-aluminum composite plate of a fixed length is cut by a saw blade.

[0029] In this embodiment, the composite plate cutting machine 6 processes and cuts the composite plate. The composite plate cutting machine is a commonly used device in the prior art. As long as it can achieve the cutting of the plate, it will not be described in detail.

[0030] In terms of production efficiency, the utility model integrates multiple original off-site production processes (explosive compounding, ultrasonic testing, heat treatment, leveling, cutting, surface treatment, etc.) into one production system and completes them at one time, reducing the leveling and surface treatment work in the original explosive welding forming process, shortening product processing time, and improving production capacity and production efficiency. The company has shortened the delivery period from the original 6 months to 1 month through the production system of the steel-aluminum composite plate of the utility model, greatly improving the competitiveness of the product and reducing the production cost.

[0031] The utility model is not restricted by weather and explosion sites, has low professional requirements for personnel, can greatly improve the production efficiency and production capacity of steel-aluminum composite plate products, greatly reduce the number of production units and production personnel participating in production, reduce production costs, and replace the original explosion welding forming process with the plate preheating - electromagnetic induction heating - hot rolling forming - on-line ultrasonic detection - cutting process of the utility model, can realize the batch production of steel-aluminum composite plates, shorten the processing time of steel-aluminum composite plates, improve production capacity and production efficiency, and greatly reduce the batch production threshold and production costs.

[0032] The above-disclosed is only a preferred embodiment of the utility model, and of course, the scope of rights of the utility model cannot be limited thereby. Therefore, equivalent changes made according to the claims of the utility model still fall within the scope covered by the utility model.

Claims

1. A production system for steel-aluminum composite panels, characterized in that: The invention comprises a zoned preheating mechanism, a heating mechanism (3), a rolling and extruding mechanism (4), a detection mechanism (5) and a composite plate cutting machine (6) which are arranged in sequence from left to right, wherein a first conveying mechanism (1) for conveying plates is arranged between the zoned preheating mechanism (2), the heating mechanism (3), the rolling and extruding mechanism (4), the detection mechanism (5) and the composite plate cutting machine (6); The zoned preheating mechanism comprises a layered heating zone (21) and a heating and heat preservation synthesis zone (22) arranged in sequence from left to right, the layered heating zone (21) comprises a first heating zone (211) and a second heating zone (212) arranged at intervals from top to bottom, the first heating zone (211) and the second heating zone (212) are each provided with a plurality of heating zones of different temperature ranges, the first heating zone (211) and the second heating zone (212) are respectively used to heat an aluminum plate and a steel plate, the aluminum plate and the steel plate are respectively transported to the heating and heat preservation synthesis zone (22) by a second conveying mechanism (7) and the first conveying mechanism (1), the heating and heat preservation synthesis zone (22) is provided with an electric gate for positioning the steel plate and a grating sensor for detecting the position of the steel plate, the aluminum plate is placed on top of the steel plate by a mechanical arm to achieve overlap, the grating sensor is connected to a control system by an electrical signal, and the control system controls the switch of the electric gate; The overlapped plates are sequentially transferred by the first conveying mechanism (1) to the heating mechanism (3), the rolling and extruding mechanism (4), the detection mechanism (5) and the composite plate cutting machine (6) for processing.

2. A production system for steel-aluminum composite panels according to claim 1, characterized in that: There are four heating zones of different temperature ranges, which are arranged in sequence and are heating zone 1 (201), heating zone 2 (202), heating zone 3 (203) and heating zone 4 (204). The temperature of heating zone 1 (201) is 400±40°C, the temperature of heating zone 2 (202) is 460±30°C, the temperature of heating zone 3 (203) is 480±20°C, and the temperature of heating zone 4 (204) is 500±20°C.

3. The production system of a steel-aluminum composite plate according to claim 1, characterized in that: The heating mechanism (3) is an electromagnetic induction heating device, and the heating temperature of the electromagnetic induction heating device is 520±20°C.

4. The production system of a steel-aluminum composite plate according to claim 1, characterized in that: The second conveying mechanism (7) comprises a transverse feeding section (71) and an oblique discharging section (72) which are connected to each other, the transverse feeding section (71) being arranged in the first heating zone (211), and the oblique discharging section (72) being arranged in the heating and heat-insulating synthesis zone (22).

5. The production system of a steel-aluminum composite plate according to claim 1, characterized in that: The first conveying mechanism (1) and the second conveying mechanism (7) are roller conveyor belts.

6. The production system of a steel-aluminum composite plate according to claim 1, characterized in that: The rolling and extrusion mechanism (4) comprises at least two rollers (41) arranged one above the other. The two rollers (41) are used for rolling aluminum plates and steel plates. The inner cavity of each roller (41) is filled with a heat-conducting medium.

7. The production system of a steel-aluminum composite plate according to claim 1, characterized in that: The detection mechanism (5) is a water-immersion ultrasonic flaw detector.

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