Side sealing plate for twin-roll thin strip continuous casting and method of using the same

Abstract

The present invention discloses a side sealing plate for twin-roll thin strip continuous casting and a method for using the side sealing plate. The side sealing plate comprises a side sealing plate body, a positioning block and a back plate. The side sealing plate body comprises a first side surface and a second side surface opposite to the first side surface, the first side surface is fitted with the end of the twin rolls, the positioning block is connected to the second side surface of the side sealing plate body, and the back plate is positioned on the second side surface of the side sealing plate body by the positioning block. The present invention provides a side sealing plate for twin-roll thin strip continuous casting, which can well seal the ends of the twin rolls, form a closed area with the casting rolls, effectively prevent the metal liquid from leaking from the ends of the twin rolls, and realize stable casting.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgy, and in particular to a side sealing plate for twin-roller thin strip continuous casting and a use method thereof. Background Art

[0002] Twin-roller thin strip continuous casting (also known as thin strip casting and rolling) process is a cutting-edge technology in the field of metallurgy. Its emergence has brought revolutionary changes to the steel industry. Its process principle is to pour molten steel directly into a molten pool formed by a pair of counter-rotating crystallization rollers and side sealing plates. The crystallization rollers are cooled by water to solidify the molten metal between the two rollers to form a thin strip. Twin-roller thin strip continuous casting has the advantages of short process, low production cost, energy saving and environmental protection, and the thin strip does not need to be reheated. The thin strip continuous casting process can directly cast and roll molten steel into strip steel with a thickness of 0.7-5mm, greatly shortening the production process of hot-rolled strip steel. It is currently the hot-rolled strip steel production technology with the shortest process.

[0003] The thin strip continuous casting process is a sub-rapid solidification process of metal. In this process, the molten metal in the molten pool formed between the two rollers and the side sealing plates has a certain liquid level. The ends of the two rollers are sealed by the side sealing plates. There is often a problem of poor fit between the side sealing plates and the roller ends, resulting in poor sealing, which in turn leads to leakage of molten metal. Summary of the invention

[0004] In view of this, the present invention provides a side sealing plate for twin-roll thin strip continuous casting and a method of using the side sealing plate, which can well seal the ends of the twin rolls, form a closed area with the casting rolls, effectively prevent the leakage of molten metal from the ends of the twin rolls, and achieve stable casting.

[0005] Specifically, the following technical solutions are included:

[0006] In a first aspect, an embodiment of the present invention provides a side sealing plate for twin-roll thin strip continuous casting, comprising a side sealing plate body, a positioning block and a back plate;

[0007] The side sealing plate body includes a first side surface and a second side surface opposite to the first side surface, the first side surface is in contact with the end of the double roller, the positioning block is connected to the second side surface of the side sealing plate body, and the back plate is positioned on the second side surface of the side sealing plate body by the positioning block.

[0008] Optionally, the back panel includes a cutout, the positioning block is embedded in the cutout, the positioning block includes a first section and a second section, the first section has a T-shaped cross-section, the second section gradually narrows in a direction away from the first section, and the cutout includes a first cutout section corresponding to the first section and a second cutout section corresponding to the second section.

[0009] Optionally, the first cut segment includes a first side edge and a second side edge opposite to each other, the first segment includes a first protruding edge corresponding to the first side edge and a second protruding edge corresponding to the second side edge, the positioning block is fastened to the second side surface of the side sealing plate body by screws, the first protruding edge presses the first side edge, and the second protruding edge presses the second side edge, so that the back panel is pressed against the second side surface of the side sealing plate body.

[0010] Optionally, the second cut section is V-shaped or trapezoidal, and the second section is embedded in the second cut section to guide the installation between the side sealing plate body and the back plate, and the second cut section includes a first table surface and a second table surface, the first protruding edge corresponds to the first table surface, and the second protruding edge corresponds to the second table surface.

[0011] Optionally, the bottom of the first protruding edge is clamped on the first table surface, and the bottom of the second protruding edge is clamped on the second table surface, so that the height of the side sealing plate body relative to the end of the double roller is determined by the height of the first table surface and the second table surface relative to the back plate in the vertical direction; and / or, the height of the side sealing plate body relative to the end of the double roller is determined by the distance from the second section to the second incision section.

[0012] Optionally, the side sealing plate body, the positioning block, the back plate and the screws are made of the same refractory material.

[0013] Optionally, the side sealing plate body includes a first end and a second end opposite to each other, and the side sealing plate body has a shape gradually narrowing from the first end toward the second end, so that the side sealing plate body corresponds to the gap between the double rollers to seal the gap.

[0014] Optionally, the outer contour of the back plate is consistent with the outer contour of the side sealing plate body.

[0015] Optionally, the back plate is pressed against the side sealing plate body under the driving force of the driving mechanism along the axial direction of the double rollers, so that the first side surface of the side sealing plate body is tightly fitted with the end surface of the double rollers.

[0016] In a second aspect, an embodiment of the present invention provides a method for using a side sealing plate for twin-roll thin strip continuous casting as described above, comprising the following steps:

[0017] placing the back plate on the second side of the side closure plate body;

[0018] Positioning the second side surface of the side sealing plate body on the back plate by means of a positioning block;

[0019] The back plate is pressed against by the driving force of the driving mechanism along the axial direction of the double rollers, so that the first side surface of the side sealing plate body is closely fitted with the end surface of the double rollers.

[0020] The beneficial effects of the technical solution provided by the embodiment of the present invention include at least:

[0021] The side sealing plate provided by the present invention utilizes a positioning block to firmly position the back plate on the second side surface of the side sealing plate body, so that the back plate will not move on the side sealing plate, especially when the driving mechanism is used to tighten the back plate, the back plate will not move under the action of the driving force, but will be firmly pressed against the side sealing plate body, so that the side sealing plate body can also be firmly attached to the end faces of the double rollers and will not move relative to the end faces, thereby playing a good sealing role. In addition, except for the friction between the side sealing plate body and the end faces of the double rollers due to the rotation of the rollers, the side sealing plate body will not produce additional wear due to other relative movements, thereby improving the service life of the side sealing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a perspective view of a side sealing plate for twin-roll thin strip continuous casting according to an embodiment of the invention.

[0024] Figure 2 It is a schematic diagram of the connection state of the side sealing plate body and the positioning block according to an embodiment of the invention.

[0025] Figure 3 is a perspective view of a back plate according to an embodiment of the invention.

[0026] Figure 4 It is a schematic diagram of the assembly state of the side sealing plate and the double rollers according to an embodiment of the invention.

[0027] The reference numerals in the figures represent respectively:

[0028] 10-side sealing plate body; 20-positioning block; 201-first protruding edge; 202-second protruding edge; 30-back plate; 310-incision; 311-first side edge; 312-second side edge; 313-first table top; 314-second table top; 40-screw; 50-double roller.

[0029] The above drawings have shown clear embodiments of the present invention, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present invention in any way, but to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Thin strip continuous casting technology is a cutting-edge technology in the field of metallurgy and material research. Its emergence has brought revolutionary changes to the steel industry. It has changed the production process of thin steel in the traditional metallurgical industry. Traditional thin steel generally adopts slab continuous casting method, which needs to go through multiple hot rolling and repeated cold rolling processes in production. It consumes a lot of energy, has complex processes, has a long production cycle, high labor intensity, high product cost, and difficult conversion. The thin strip continuous casting technology combines continuous casting, rolling, and even heat treatment into one, so that the thin strip billet produced can be formed into an industrial finished product at one time after a little cold rolling. The production process is simplified, the production cycle is shortened, the equipment investment is also reduced accordingly, the product cost is significantly reduced, and the quality of the thin strip is no less than that of the traditional process. In addition, the rapid solidification effect of thin strip continuous casting technology can also produce materials that are difficult to roll and new materials with special properties.

[0032] The thin strip continuous casting technology process is divided into belt type, roller type, roller belt type, etc. due to different crystallizers. Among them, the most researched, fastest progressed and most promising is the twin-roller thin strip continuous casting technology. This technology has unique advantages in producing thin steel strips with a thickness of 1mm to 10mm. Its process principle is to inject molten metal between a pair of counter-rotating casting rollers with cooling water inside, so that the molten metal solidifies between the two rollers to form a thin strip. Twin-roller casting machines are divided into twin-roller casting machines with the same diameter and twin-roller casting machines with different diameters according to the different roller diameters of the two rollers. There are three types of two-roller layouts: horizontal, vertical and inclined. Among them, twin-roller casting machines with the same diameter are the most widely used.

[0033] In the following embodiments, horizontally arranged twin rollers of the same diameter are taken as an example to describe the application scenarios of the side sealing plates provided in the embodiments of the present invention.

[0034] In the twin-roller thin strip continuous casting process, the molten metal is directly injected into the molten pool formed by the twin rolls and the side sealing plates. In order to keep the side sealing plates and the roll ends in a tight state throughout the continuous casting process, a large pressing force needs to be applied to the outside of the side sealing plates. If the side sealing plates cannot be firmly pressed against the end faces of the twin rolls, it is easy to cause leakage of the molten metal. Therefore, the sealing of the two roll ends by the side sealing plates is very important for the twin-roller thin strip continuous casting process technology.

[0035] In view of this, the present invention provides a side sealing plate for twin-roll thin strip continuous casting, which can well seal the ends of the twin rolls and effectively prevent the leakage of molten metal from the ends of the twin rolls.

[0036] To make the technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0037] like Figures 1 to 3 As shown, an embodiment of the present invention provides a side sealing plate for twin-roll 50 thin strip continuous casting, comprising a side sealing plate body 10 , a positioning block 20 and a back plate 30 .

[0038] The side sealing plate body 10 includes a first side surface and a second side surface opposite to the first side surface, the first side surface is in contact with the end of the double roller 50, the positioning block 20 is connected to the second side surface of the side sealing plate body 10, and the back plate 30 is positioned on the second side surface of the side sealing plate body 10 through the positioning block 20.

[0039] The side sealing plate provided in the embodiment of the present invention utilizes the positioning block 20 to securely position the back plate 30 on the second side surface of the side sealing plate body 10, so that the back plate 30 will not move on the side sealing plate, especially when the driving mechanism is used to tighten the back plate 30, it will not move under the action of the driving force, but will be firmly pressed against the side sealing plate body 10, so that the side sealing plate body 10 can also be securely attached to the end surface of the double roller 50 and will not move relative to the end surface, thereby playing a good sealing role. In addition, except for the friction between the side sealing plate body 10 and the end surface of the double roller 50 due to the rotation of the roller, the side sealing plate body 10 will not produce additional wear due to other relative movements, thereby improving the service life of the side sealing plate.

[0040] like Figure 4 As shown, Figure 4 The assembly state of the side sealing plate and the double roller 50 of an embodiment of the present invention is shown, where the back plate 30 is placed on the second side surface of the side sealing plate main body 10; the back plate 30 is positioned on the second side surface of the side sealing plate main body 10 by the positioning block 20; the back plate 30 is tightened by the driving force of the driving mechanism (not shown) along the axial direction of the double roller 50, so that the first side surface of the side sealing plate main body 10 is tightly fitted with the end surface of the double roller 50.

[0041] During the casting process, especially in the initial stage of casting, due to the low temperature of the molten metal (e.g., molten steel) at the initial stage of the molten pool, the rapid change of the liquid level height, and the presence of impurities in the molten steel, abnormal conditions such as the presence of impurities in the molten steel will cause a large lateral component of the casting force to be applied to the side sealing plate body 10. At this time, if the lateral component of the casting force is large enough, and the sealing performance of the side sealing plate is not good enough, a gap will appear between the side sealing plate and the end surface of the double roller 50, and the molten steel in the molten pool will leak out of the molten pool through this gap. This situation will cause the casting operation to fail, or cause the side sealing plate to be severely worn, thereby seriously affecting the casting stability.

[0042] According to the embodiment of the present invention, since the back plate 30 is firmly positioned on the side sealing plate body 10 by the positioning block 20, the tightening force of the driving mechanism can be effectively transmitted to the side sealing plate body 10, so that the side sealing plate body 10 can ensure good sealing performance under the action of a sufficiently large driving force even if it is subjected to a large lateral component of the casting force.

[0043] like Figures 1 to 3 As shown, the back plate 30 includes a cutout 310, the positioning block 20 is embedded in the cutout 310, the positioning block 20 includes a first section and a second section, the cross-section of the first section is T-shaped, and the second section gradually narrows in a direction away from the first section, and the cutout 310 includes a first cutout section corresponding to the first section and a second cutout section corresponding to the second section.

[0044] Exemplarily, the cutout 310 extends downward from the upper end of the back plate 30, and the cutout 310 forms two cutout sections with different outer contours in the length direction of the back plate 30, namely, the first cutout section and the second cutout section. The first cutout section mainly plays a pressing role, and the second cutout section mainly plays a limiting role. Correspondingly, the first section of the positioning block 20 cooperates with the first cutout section, and the second section of the positioning block 20 cooperates with the second cutout section. Through their joint action, the back plate 30 can be positioned on the side sealing plate body 10.

[0045] According to an embodiment of the present invention, the first incision section includes a first side edge 311 and a second side edge 312 opposite to each other, the first section includes a first protruding edge 201 corresponding to the first side edge 311 and a second protruding edge 202 corresponding to the second side edge 312, the positioning block 20 is fastened to the second side surface of the side sealing plate body 10 by screws 40, the first protruding edge 201 presses the first side edge 311, and the second protruding edge 202 presses the second side edge 312, so that the back panel 30 is pressed against the second side surface of the side sealing plate body 10.

[0046] Exemplarily, in this embodiment, the first side edge 311 and the second side edge 312 extend in the length direction of the back panel 30, and the structure and arrangement of the first side edge 311 and the second side edge 312 are completely symmetrical. Exemplarily, the first side edge 311 and the second side edge 312 both extend from the top of the back panel 30 to the upper end near the second incision segment, and the thickness of the first side edge 311 and the second side edge 312 is less than the total thickness of the back panel 30.

[0047] The cross-section of the first section of the positioning block 20 is T-shaped, and the first protruding edge 201 and the second protruding edge 202 are used to press against the first side edge 311 and the second side edge 312 respectively. The total thickness of the positioning block 20 minus the thickness of the first protruding edge 201 or the second protruding edge 202 is less than or equal to the thickness of the first side edge 311 or the second side edge 312, so that the positioning block 20 can press the first side edge 311 and the second side edge 312 when it is fastened to the side sealing plate body 10 by screws 40.

[0048] Exemplarily, the second cut section can be V-shaped or inverted trapezoidal (V-shaped in the present embodiment), and the second section is embedded in the second cut section to guide the installation between the side sealing plate body 10 and the back plate 30. The second cut section includes a first table surface 313 and a second table surface 314. The first protruding edge 201 corresponds to the first table surface 313, and the second protruding edge 202 corresponds to the second table surface 314.

[0049] The bottom of the first protruding edge 201 is clamped on the first table 313, and the bottom of the second protruding edge 202 is clamped on the second table 314, so that the height of the side sealing plate body 10 relative to the double roller end is determined by the height of the first table 313 and the second table 314 relative to the back plate 30 in the vertical direction; and / or, by the second section (such as Figure 1 The V-shaped section shown in FIG. 1 enters the second cutout section (as shown in FIG. Figure 1 The height of the side sealing plate body relative to the end of the double roller is determined by the distance of the V-shaped cutout (also known as the depth of entry) shown in the figure.

[0050] Since the bottom of the first protruding edge 201 is stuck on the first table surface 313, and the bottom of the second protruding edge 202 is stuck on the second table surface 314, the height of the positioning block 20 relative to the back plate 30 can be limited by the height of the first table surface 313 and the second table surface 314, thereby limiting the installation height of the side sealing plate body 10, and further limiting the height of the side sealing plate body 10 relative to the end of the double roller. Therefore, the height of the side sealing plate body 10 relative to the end of the double roller can be adjusted by the height of the first table surface 313 and the second table surface 314 in the vertical direction relative to the back plate 30, so that the side sealing plate body 10 can better cooperate with the end face of the double roller 50 to achieve a good sealing effect.

[0051] Optionally, the second section (such as Figure 1 The V-shaped section shown in FIG. 1 enters the second cutout section (as shown in FIG. Figure 1 The height of the side sealing plate body 10 relative to the end of the double roller is determined by the distance of the second section (or the depth of entry) from the second section to the V-shaped incision shown in the figure. For example, after the second section enters the second incision section, the bottom of the second section completely abuts against the bottom of the second incision section, then the depth of the second incision section defines the height of the positioning block 20 relative to the back plate 30, thereby defining the installation height of the side sealing plate body 10, and further defining the height of the side sealing plate body 10 relative to the end of the double roller. Therefore, the height of the side sealing plate body 10 relative to the end of the double roller can be adjusted by the depth of the second incision section (since in this example, the bottom of the second section completely abuts against the bottom of the second incision section, the distance that the second section enters the second incision section is also the depth of the second incision section) so that the side sealing plate body 10 can better cooperate with the end face of the double roller 50 to achieve a good sealing effect.

[0052] In addition to adjusting the distance that the second section enters into the second incision segment by the depth of the second incision segment, illustratively, the distance that the second section enters into the second incision segment may also be adjusted by the included angle of the second incision segment.

[0053] The second section of the positioning block 20 has a V-shape that matches the second incision section. When the second section of the positioning block 20 is engaged with the second incision section of the back plate 30, the position of the back plate 30 on the second side of the side sealing plate can be limited. The first table 313 and the second table 314 are located at the top of the second incision section and adjacent to the first incision section. The bottom of the first protruding edge 201 is stuck on the first table 313, and the bottom of the second protruding edge 202 is stuck on the second table 314. The cooperation between the first protruding edge 201 and the first table 313 and the cooperation between the second protruding edge 202 and the second table 314 also have a limiting effect on the back plate 30, which can prevent the back plate 30 from tipping over, so that the back plate 30 can stably transmit the top driving force of the driving mechanism to the side sealing plate body 10, so that the side sealing plate body 10 can have good sealing performance.

[0054] Optionally, according to an embodiment of the present invention, the side sealing plate body 10, the positioning block 20, the back plate 30 and the screw 40 are made of the same refractory material, for example, quartz material.

[0055] Since the molten metal has a relatively high temperature, the side sealing plate body 10, the positioning block 20, the back plate 30 and the screws 40 need to be made of refractory materials, and their materials must be consistent to avoid different expansion rates caused by different materials when the side sealing plate is baked at high temperature, causing visible or invisible damage to the side sealing plate and affecting the subsequent process flow.

[0056] Optionally, according to an embodiment of the present invention, the side sealing plate body 10 includes a first end and a second end opposite to each other, and the side sealing plate body 10 has a shape that gradually narrows from the first end toward the second end, so that the side sealing plate body 10 corresponds to the gap between the double rollers 50 to seal the gap.

[0057] Optionally, according to an embodiment of the present invention, the outer contour of the back plate 30 is consistent with the outer contour of the side sealing plate body 10. The pressing force can be transmitted to the side sealing plate body 10 in a more balanced manner.

[0058] Optionally, according to an embodiment of the present invention, the first side surface of the side sealing plate body 10 is a smooth and flat surface. The side sealing plate body 10 has a smooth and flat surface to ensure close contact with the end surface of the double roller 50, thereby having good sealing performance.

[0059] Optionally, according to an embodiment of the present invention, the back plate 30 is pressed against the side sealing plate body 10 under the action of the driving force of the driving mechanism (not shown) along the axial direction of the double roller 50, so that the first side surface of the side sealing plate body 10 is tightly fitted with the end surface of the double roller 50.

[0060] The embodiment of the present invention provides a method for using the side sealing plate for twin-roll 50 thin strip continuous casting as described above, comprising the following steps:

[0061] Placing the back plate 30 on the second side surface of the side sealing plate body 10;

[0062] The positioning block 20 is fitted into the cutout 310 of the back plate 30, so that the first protruding edge 201 of the positioning block 20 presses against the first side edge 311 of the back plate 30, and the second protruding edge 202 of the positioning block 20 presses against the second side edge 312 of the back plate 30, and the positioning block 20 is fastened to the second side surface of the side sealing plate body 10 by means of screws 40, so that the second side surface of the side sealing plate body is positioned on the back plate by means of the positioning block;

[0063] The side sealing plate body 10 is pressed against by the driving force of the driving mechanism along the axial direction of the double rollers 50 , so that the first side surface of the side sealing plate body 10 is closely fitted with the end surface of the double rollers 50 .

[0064] The side sealing plate provided in the embodiment of the present invention utilizes the positioning block 20 to securely position the back plate 30 on the second side surface of the side sealing plate body 10, so that the back plate 30 will not move on the side sealing plate, especially when the driving mechanism is used to tighten the back plate 30, it will not move under the action of the driving force, but will be firmly pressed against the side sealing plate body 10, so that the side sealing plate body 10 can also be securely attached to the end surface of the double roller 50 and will not move relative to the end surface, thereby playing a good sealing role. In addition, except for the friction between the side sealing plate body 10 and the end surface of the double roller 50 due to the rotation of the roller, the side sealing plate body 10 will not produce additional wear due to other relative movements, thereby improving the service life of the side sealing plate.

[0065] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the meanings understood by ordinary technicians in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "one" and other similar words do not indicate quantity restrictions, but indicate the existence of at least one. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0066] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The description and examples are to be considered exemplary only.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A side sealing plate for twin-roll thin strip continuous casting, characterized in that: It includes a side sealing plate body, a positioning block and a back plate; The side sealing plate body comprises a first side surface and a second side surface opposite to the first side surface, the first side surface is in contact with the end of the double roller, the positioning block is connected to the second side surface of the side sealing plate body, and the back plate is positioned on the second side surface of the side sealing plate body by the positioning block; The back plate includes a cutout, the positioning block is embedded in the cutout, the positioning block includes a first section and a second section, the first section has a T-shaped cross section, the second section gradually narrows in a direction away from the first section, and the cutout includes a first cutout section corresponding to the first section and a second cutout section corresponding to the second section; The first cutout section includes a first side edge and a second side edge opposite to each other, the first section includes a first protruding edge corresponding to the first side edge and a second protruding edge corresponding to the second side edge, the positioning block is fastened to the second side surface of the side sealing plate body by screws, the first protruding edge presses the first side edge, and the second protruding edge presses the second side edge, so that the back plate is pressed against the second side surface of the side sealing plate body; The second cutout section is V-shaped or inverted trapezoidal, the second section is embedded in the second cutout section to guide the installation between the side sealing plate body and the back plate, the second cutout section includes a first table surface and a second table surface, the first protruding edge corresponds to the first table surface, and the second protruding edge corresponds to the second table surface; The side sealing plate body, the positioning block, the back plate and the screws are made of the same refractory material.

2. The side sealing plate for twin-roll thin strip continuous casting according to claim 1, characterized in that: The bottom of the first protruding edge is clamped on the first table surface, and the bottom of the second protruding edge is clamped on the second table surface, so that the height of the side sealing plate body relative to the end of the double roller is determined by the height of the first table surface and the second table surface relative to the back plate in the vertical direction; and / or, the height of the side sealing plate body relative to the end of the double roller is determined by the distance from the second section to the second incision section.

3. The side sealing plate for twin-roll thin strip continuous casting according to claim 1, characterized in that: The side sealing plate body includes a first end and a second end opposite to each other, and has a shape gradually narrowing from the first end toward the second end so that the side sealing plate body corresponds to a gap between the double rollers to seal the gap.

4. The side sealing plate for twin-roll thin strip continuous casting according to claim 3, characterized in that: The outer contour of the back plate is consistent with the outer contour of the side sealing plate body.

5. The side sealing plate for twin-roll thin strip continuous casting according to claim 1, characterized in that: The back plate is pressed against the side sealing plate body under the driving force of the driving mechanism along the axial direction of the double rollers, so that the first side surface of the side sealing plate body is closely fitted with the end surface of the double rollers.

6. A method for using the side sealing plate for twin-roll thin strip continuous casting as claimed in claim 1, characterized in that: The following steps are involved: placing the back plate on the second side of the side closure plate body; Positioning the second side surface of the side sealing plate body on the back plate by means of a positioning block; The back plate is pressed against by the driving force of the driving mechanism along the axial direction of the double rollers, so that the first side surface of the side sealing plate body is closely fitted with the end surface of the double rollers.

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