Strip steel heat resistance test chamber

Abstract

This utility model relates to a strip steel heat resistance testing chamber, including a chamber body and a testing module. The testing module is located inside the chamber body, and it also includes a feeding box located on the front side of the chamber body. A feeding roller is rotatably installed inside the feeding box, and a feeding port is provided on the front side of the feeding roller. A discharge roller is provided on the rear side of the chamber body, and the discharge roller is rotatably installed in the chamber body. The testing module includes a plurality of infrared heating lamps that slide vertically inside the chamber body. By adopting the above scheme, a strip steel heat resistance testing chamber is provided in which one end of the strip steel on the feeding roller is fixed on the discharge roller, thereby realizing that a part of the strip steel is spread apart by the feeding roller and the discharge roller and located below each infrared heating lamp, and is heated for heat resistance testing.

Description

Technical Field

[0001] This utility model relates to a testing device for steel strips, and more particularly to a testing chamber for the heat resistance of steel strips. Background Technology

[0002] Steel strip is a form of steel product, usually referring to flat steel products with a relatively large width and relatively small thickness. It is a long strip of steel produced by continuous casting or hot rolling, cold rolling and other processes. It can be supplied in coils, so it is sometimes called steel strip or coiled steel.

[0003] In many industrial applications, steel strip may be exposed to high-temperature environments, such as in metallurgy, chemical industry, power, and aerospace. To ensure safety and reliability in these applications, it is necessary to ensure that the steel strip can maintain its physical and mechanical properties within a specific temperature range. Furthermore, in some critical situations, such as the use of steel strip in high-temperature furnaces and boilers, poor heat resistance of the material may lead to equipment failure or even safety accidents. Therefore, conducting such tests regularly helps to monitor product quality during the production process and ensure that every batch of products leaving the factory meets the expected usage standards and requirements.

[0004] Therefore, how to conduct heat resistance testing on steel strips has become a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a strip heat resistance testing chamber that fixes one end of the strip on the feed roller to the discharge roller, thereby allowing a portion of the strip to be separated by the feed roller and the discharge roller and positioned below each infrared heating lamp for heating and heat resistance testing.

[0006] To achieve the above objectives, the present invention provides the following technical solution: it includes a housing and a testing module, the testing module being located inside the housing, and also includes a feeding box located on the front side of the housing, a feeding roller being rotatably installed inside the feeding box and a feeding port being provided on the front side of the feeding roller, a discharging roller being provided on the rear side of the housing, the discharging roller being rotatably installed in the housing, and the testing module including a plurality of infrared heating lamps that slide vertically inside the housing.

[0007] The present invention is further configured such that: the feeding roller includes rotating shafts on the left and right sides, the feeding box is provided with loading slots above each rotating shaft, and the front and rear limiting members that are prone to deformation are fixedly installed on the front and rear sides of each loading slot of the feeding box respectively.

[0008] The present invention is further configured such that: the front limiting member is an arc shape with an opening facing forward and has a front deformation groove extending through the left and right sides; the rear limiting member is an arc shape with an opening facing backward and has a rear deformation groove extending through the left and right sides.

[0009] The present invention is further configured such that: the test module includes a cylinder, a hydraulic rod fixed to the cylinder, an adjustment plate fixedly connected to the hydraulic rod, and a mounting base fixed to the adjustment plate and for the infrared heating lamp to be installed; each of the infrared heating lamps includes fixing plates on the front and rear sides, and each fixing plate is detachably connected to the mounting base.

[0010] The present invention is further configured such that: the box body is fixedly installed on both the left and right sides of the adjustment plate, and each limit frame is provided with a limit groove for the adjustment plate to slide.

[0011] The present invention is further configured such that: the mounting base is movably mounted with connecting blocks on both the front and rear sides of the corresponding infrared heating lamp, and the downward projection of each connecting block falls on the fixing plate on the corresponding side, and each connecting block is detachably connected to the fixing plate.

[0012] The present invention is further configured such that: each of the connecting blocks is rotatably connected to the mounting base and each of the blocks is provided with a first magnet at its bottom, and each of the fixing plates is provided with a second magnet.

[0013] The present invention is further configured such that: a contact wheel is fixedly installed on the discharge roller, the contact wheel is located on the left side of the box and abuts against the box, and the contact wheel is provided with a plurality of contact grooves in the circumferential direction.

[0014] By adopting the above technical solution, after the coiled strip steel is loaded onto the feed roller, one end of the strip steel passes through the feed port and is fixed on the discharge roller. At this time, since there is a distance between the feed roller and the discharge roller, the strip steel can be pulled into a flat state and placed in the test chamber by the influence of the positions of the feed roller and the discharge roller. At this time, the infrared heating lamp is moved down to be above the surface of the strip steel to be tested. Then, the infrared heating lamps are activated to heat the surface of this part of the strip steel in the test chamber. The required heating time is specified. After the test time is over, the discharge roller is rotated to remove this part of the strip steel in the test chamber and wrap it around the circumference of the discharge roller. The condition of this part of the strip steel after heating can be observed. Since the strip steel is usually in coil, if necessary, during the rotation of the discharge roller, a new section of untested strip steel will fall below the test module and can be tested. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an assembly drawing illustrating a specific embodiment of the present utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is an exploded view of the mounting base and infrared heating lamp in this utility model. Figure 5 for Figure 1 Enlarged view of A in the middle; Figure 6 for Figure 4 A magnified view of B in the middle.

[0017] In the diagram: 1-box body, 11-discharge roller, 111-contact wheel, 1111-contact groove, 12-limiting frame, 121-limiting groove; 2-Test module, 21-Infrared heating lamp, 211-Fixing plate, 2111-Second magnet, 22-Cylinder, 23-Hydraulic rod, 24-Adjusting plate, 25-Mounting base, 251-Connecting plug, 2511-First magnet; 3-Feed box, 31-Feed roller, 311-Rotating shaft, 32-Feed inlet, 33-Loading groove, 34-Front limiter, 341-Front deformation groove, 35-Rear limiter, 351-Rear deformation groove. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1-6As shown, this utility model discloses a strip heat resistance testing chamber, including a chamber body 1 and a testing module 2. The testing module 2 is located inside the chamber body 1. By placing the strip to be tested inside the chamber body 1 and below the testing module 2, the testing module 2 is activated to test the strip. It also includes a feeding box 3 located at the front of the chamber body 1. A feeding roller 31 is rotatably mounted inside the feeding box 3, and a feeding port 32 is provided in front of the feeding roller 31. A discharging roller 11 is provided at the rear of the chamber body 1 and is rotatably mounted on the chamber body 1. The testing module 2 includes several infrared heating lamps 21 that slide vertically inside the chamber body 1 (the structure, working principle, and wiring method of the infrared heating lamps 21 are existing technologies and will not be specifically described here). After the coiled strip is loaded onto the feeding roller 31, one end of the strip passes through the feeding port 32 and is fixed at the discharging port 31. On roller 11, since there is a distance between the feed roller 31 and the discharge roller 11, the strip steel can be pulled into a flat state and placed in the box 1 by the position of the feed roller 31 and the discharge roller 11. At this time, the infrared heating lamp 21 is moved down to be above the surface of the strip steel to be tested. Then, each infrared heating lamp 21 is activated to heat the surface of this part of the strip steel in the box 1. The required heating time is specified. After the test time is over, the discharge roller 11 is rotated to remove this part of the strip steel in the box 1 and wrap it around the circumference of the discharge roller 11. Then, the condition of this part of the strip steel after heating can be observed. Since the strip steel is usually in coil, if necessary, during the rotation of the discharge roller 11, a new section of untested strip steel will fall below the test module 2 on the feed roller 31 and can be tested.

[0020] Normally, the feed roller 31 and the discharge roller 11 can be removed from the feed box 3 and the box body 1, thereby facilitating the complete separation of the strip from the box body 1 and the feed box 3 and making it easier to remove it from the feed roller 31 and the discharge roller 11.

[0021] In addition, the discharge roller 11 and the housing 1 can be connected by bolts (not shown in the figure), which reduces the inconvenience caused to the fixing of the strip by the rotation of the discharge roller 11 during the process of fixing one end of the strip to the discharge roller 11. When the test is completed and it is necessary to remove the part of the strip wrapped on the discharge roller 11, the bolts can be removed from the discharge roller 11 and the housing 1 so that the discharge roller 11 can be rotated.

[0022] The feed roller 31 includes left and right rotating shafts 311. Each feed box 3 has a loading groove 33 located above each rotating shaft 311. A front limiting member 34 and a rear limiting member 35, which are prone to deformation, are fixedly installed on the front and rear sides of each loading groove 33 of the feed box 3. Due to the presence of the front and rear limiting members 34 and 35, before the strip is loaded, the feed roller 31 is forced to pass over the front and rear limiting members 34 and 35. After the positioning member 35, the feed roller 31 can be removed from the feed box 3. After the coiled strip is loaded onto the feed roller 31, the feed roller 31 is then turned downwards to force it past the front limit member 34 and the rear limit member 35. After the rotating shafts 311 are inserted into the feed box 3, both sides of the strip on the feed roller 31 are abutted against the inner wall of the feed box, so that force can be applied to one end of the coiled strip to remove it and fix it on the discharge roller 11.

[0023] Preferably, the front limiting member 34 is an arc-shaped opening facing forward and has a front deformation groove 341 extending through it from left to right, and the rear limiting member 35 is an arc-shaped opening facing backward and has a rear deformation groove 351 extending through it from left to right. 1. Since both the front limiting member 34 and the rear limiting member 35 are arc-shaped, their surface area in the front-rear direction can be increased, making it difficult for each rotating shaft 311 to pass over the front limiting member 34 and the rear limiting member 35 upward without the action of external force, and thus it can be stably rotated and installed in the feed box; 2. When it is necessary to remove the feed roller 31, since the front limiting member 34 and the rear limiting member 35 are respectively provided with the front deformation groove 341 and the rear deformation groove 351, the contact positions of the front limiting member 34 and the rear limiting member 35 with the feed roller 31 can be squeezed towards the corresponding deformation groove, so that the rotating shaft 311 can be forcibly removed from the feed box upward.

[0024] In addition, the test module 2 includes a cylinder 22 (the wiring method and working principle of the cylinder 22 are existing technologies and will not be specifically described here), a hydraulic rod 23 fixed to the cylinder 22, an adjusting plate 24 fixedly connected to the hydraulic rod 23 by welding or other means, and a mounting base 25 fixed to the adjusting plate 24 for the infrared heating lamp 21 to be installed. Each infrared heating lamp 21 includes fixing plates 211 on both the front and rear sides. Each fixing plate 211 is detachably connected to the mounting base 25 by bolts, fastening, or other means. 1. After starting the cylinder 22, it can drive the hydraulic rod 23 to rise and fall, thereby driving the adjusting plate 24 and the mounting base 25 with the infrared heating lamp 21 to move up and down. When the distance between the infrared heating lamp 21 and the strip steel is closer, the energy density received per unit area is higher, so it can be heated faster. Conversely, if the distance increases, the energy density decreases, and the heating rate will slow down accordingly. Furthermore, close-range heating may lead to localized overheating, especially when using high-power-density infrared emitters. This may cause uneven temperature distribution on the strip surface. Appropriately increasing the distance between the heating lamp and the strip helps improve the uniformity of temperature distribution because the heat has more time to diffuse across the material surface. Therefore, the test module 2 can adjust the height of each infrared heating lamp 21 to meet different usage requirements. 2. The infrared heating lamp 21 is detachably connected to the mounting base 25 via the fixing plate 211, which facilitates maintenance and replacement, improves the operability and maintenance convenience of the equipment, and after being fixed to the mounting base 25, it can move stably up and down with the movement of the hydraulic rod 23 without shaking within the mounting base 25.

[0025] The housing 1 is fixedly installed with limit frames 12 on both the left and right sides of the adjustment plate 24 by welding, integral molding or other methods. Each limit frame 12 is provided with a limit groove 121 for the adjustment plate 24 to slide. The existence of the limit frames 12 on both sides of the housing 1 can guide the path of the adjustment plate 24 as it moves up and down with the hydraulic rod 23, ensuring the stability and accuracy of the adjustment plate 24 during the movement.

[0026] The mounting base 25 has connecting blocks 251 movably mounted on both the front and rear sides of the corresponding infrared heating lamp 21. The downward projection of each connecting block 251 falls on the corresponding fixing plate 211. Each connecting block 251 is detachably connected to the fixing plate 211 by bolts, clips, or other means. Since each connecting block 251 is movably mounted on the mounting base 25 and its downward projection falls on the corresponding fixing plate 211, it is detachably connected to it. Therefore, without external force, each connecting block 251 is stably connected to the fixing plate 211, making it impossible to remove the infrared heating lamp 21 and thus keeping it stably in the corresponding mounting base 25. After separating the connecting block 251 from the fixing plate 211, the infrared heating lamp 21 can be removed from the mounting base 25 for maintenance.

[0027] Preferably, each of the connecting plugs 251 is rotatably connected to the mounting base 25 and is provided with a first magnet 2511 at its bottom. Each of the fixing plates 211 is provided with a second magnet 2111. The first magnet 2511 at the bottom of the connecting plug 251 and the second magnet 2111 on the fixing plate 211 attract each other, which enhances the connection strength between the connecting plug 251 and the fixing plate 211. By offsetting the first magnet 2511 and the second magnet 2111, each connecting plug 251 can be rotated upwards to release the infrared heating lamp 21 from the corresponding mounting base 25.

[0028] In addition, a contact wheel 111 is fixedly installed on the discharge roller 11 by welding or other means. The contact wheel 111 is located on the left side of the housing 1 and abuts against the housing 1. The contact wheel 111 is provided with a number of contact grooves 1111 around its circumference. The presence of each contact groove 1111 can increase the circumferential friction of the contact wheel 111, thereby reducing the slippage between the hand or operating tool and the contact wheel 111 during the rotation of the discharge roller 11.

[0029] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heat resistance testing chamber for steel strip, comprising a chamber body and a testing module, wherein the testing module is located inside the chamber body, characterized in that: It also includes a feeding box located on the front side of the box, a feeding roller is rotatably installed inside the feeding box and a feeding port is provided on the front side of the feeding roller, a discharging roller is provided on the rear side of the box and is rotatably installed in the box, and the test module includes several infrared heating lamps that slide in the vertical direction inside the box.

2. The heat resistance test chamber for steel strip according to claim 1, characterized in that: The feed roller includes rotating shafts on the left and right sides. The feed box is provided with loading slots above each rotating shaft. The front limiter and the rear limiter, which are prone to deformation, are fixedly installed on the front and rear sides of each loading slot.

3. The heat resistance test chamber for steel strip according to claim 2, characterized in that: The front limiting member is an arc-shaped opening facing forward and has a front deformation groove running through it on both sides. The rear limiting member is an arc-shaped opening facing backward and has a rear deformation groove running through it on both sides.

4. The heat resistance test chamber for steel strip according to claim 1, characterized in that: The test module includes a cylinder, a hydraulic rod fixed to the cylinder, an adjustment plate fixedly connected to the hydraulic rod, and a mounting base fixed to the adjustment plate for the infrared heating lamps to be installed. Each infrared heating lamp includes fixing plates on the front and rear sides, and each fixing plate is detachably connected to the mounting base.

5. A steel strip heat resistance testing chamber according to claim 4, characterized in that: The box body is fixedly installed with limit frames on both the left and right sides of the adjustment plate, and each limit frame is provided with a limit groove for the adjustment plate to slide.

6. The heat resistance test chamber for steel strip according to claim 4, characterized in that: The mounting base is equipped with connecting blocks on both the front and rear sides of the corresponding infrared heating lamp. The downward projection of each connecting block falls on the fixing plate on the corresponding side, and each connecting block is detachably connected to the fixing plate.

7. A steel strip heat resistance testing chamber according to claim 6, characterized in that: Each of the connecting blocks is rotatably connected to the mounting base and has a first magnet at its bottom, while each of the fixing plates has a second magnet.

8. The heat resistance test chamber for steel strip according to claim 1, characterized in that: A contact wheel is fixedly installed on the discharge roller. The contact wheel is located on the left side of the box and abuts against the box. The contact wheel is provided with a number of contact grooves in the circumference.

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