Annealing equipment for high-strength steel

Abstract

The present invention discloses an annealing device for high-strength steel, which relates to the technical field of steel annealing equipment, including an annealing furnace, a guide rail arranged at the side end of the annealing furnace, a quenching pool arranged at the side end of the guide rail, a machine table slidably mounted on the top of the guide rail, and steel pipe fittings stacked on the top of the machine table, and the two sides of the machine table are symmetrically provided with clamping mechanisms for clamping and fixing the steel pipe fittings; the quenching pool and the annealing furnace are provided with a dispersing mechanism for dispersing the stacked steel pipe fittings; the steel pipe fittings are clamped and fixed by the clamping mechanism, and the stacked steel pipe fittings are diffusely distributed in cooperation with the dispersing mechanism, so that the steel pipe fittings are heated evenly. The annealing device disclosed by the present invention has the effects of uniform annealing, high quality of finished products, and convenient operation.

Description

Technical Field

[0001] The invention relates to the technical field of steel annealing equipment, and in particular to an annealing equipment for high-strength steel. Background Art

[0002] Annealing is a heat treatment method in which the workpiece is heated to a certain temperature (with or without phase change), kept warm, and then slowly cooled, or phase change is performed to obtain pearlite structure, or no phase change occurs to eliminate stress and reduce hardness. After annealing, the steel will reduce hardness, increase plasticity, improve cutting performance, improve the uniformity of composition and organization, improve processing performance, and eliminate internal stress caused by casting, forging, welding, rolling, cold working, etc.

[0003] Generally, alloy steel with a yield strength of more than 1370MPa (140kgf / mm2) and a tensile strength of more than 1620MPa (165kgf / mm2) is called high-strength steel. In the existing market, when annealing steel pipe fittings made of such high-strength steel, they are usually stacked and placed inside the annealing furnace for heating. However, due to the large volume of the pipes themselves and the close fit of two to two, during annealing and heating, the pipes inside the pipe pile or the fitting surfaces between two pipes will be heated unevenly, thereby affecting the annealing efficiency of the pipes. As the height of the pipe stacking increases, the stability of the pipes will also decrease accordingly. The traditional method of fixing the pipes with brackets and iron chains will increase the workload of workers and reduce work efficiency. If the pipes are stacked in a single layer, the amount of pipes that can be processed in the annealing furnace at one time will be reduced, reducing the work efficiency of the equipment. Summary of the invention

[0004] The invention discloses an annealing device for high-strength steel, aiming to solve the technical problem that when the existing traditional equipment anneals high-strength pipes, a large number of pipes are squeezed and contacted with each other, resulting in the need to improve the working efficiency.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An annealing device for high-strength steel comprises an annealing furnace, a guide rail arranged at the side end of the annealing furnace, a quenching pool arranged at the side end of the guide rail, a machine table slidably mounted on the top of the guide rail, and steel pipes stacked on the top of the machine table, wherein clamping mechanisms for clamping and fixing the steel pipes are symmetrically arranged on both sides of the machine table;

[0007] The quenching tank and the annealing furnace are provided with a dispersing mechanism for dispersing the stacked steel pipes;

[0008] The steel pipe fittings are clamped and fixed by the clamping mechanism, and the stacked steel pipe fittings are diffused and distributed in cooperation with the bulking mechanism, so that the steel pipe fittings are heated evenly.

[0009] On the basis of the traditional annealing furnace, additional clamping mechanisms and dispersing mechanisms are provided. The clamping mechanisms are used to automatically clamp and fix the stacked pipes on both sides, eliminating the step of manually binding the pipes and reducing the complexity of using the equipment. At the same time, the dispersing mechanism can disperse the stacked pipes and increase the distance between the pipes, ensuring that the pipes can be heated and cooled more evenly during heat annealing, thereby further improving the working efficiency of traditional equipment.

[0010] In a preferred embodiment, the clamping mechanism includes two groups of fixed seats symmetrically fixed to the side ends of the top of the machine, side rods are slidably distributed between each group of the fixed seats, the number of the side rods is several and evenly distributed in the vertical direction, a plurality of clamping disks are rotatably installed on the side of each side rod, and a plurality of the clamping disks on a plurality of the side rods on the same side are interspersed in the horizontal direction, each of the clamping disks is clamped and fixed inside the side end of a steel pipe fitting, extrusion pieces are symmetrically arranged on both sides of the interior of the annealing furnace, and the side rods and the extrusion pieces are extruded and fitted.

[0011] On the basis of the traditional annealing furnace, a side rod structure that is squeezed and moved is set on the top of the machine. As the machine moves with the steel pipe fittings toward the inside of the annealing furnace, the side rods are pushed by the extrusion parts, causing the side rods to extend with several clamping plates into the inside of the steel pipe fittings, thereby realizing fully automatic fixation of the steel pipe fittings, eliminating the steps of manual bundling and fixing of pipes in traditional equipment, reducing the tediousness of using the equipment, and making the equipment more convenient to use.

[0012] In a preferred embodiment, the bulk material dispersing mechanism includes an arc groove opened on the side end of the fixed seat, the number of the arc grooves is several and evenly distributed in the vertical direction, the side end of each side rod is slidably distributed inside one of the arc grooves, the side end of each extrusion member is provided with a guide folding groove, the number of the guide folding grooves is several and evenly distributed in the vertical direction, the side ends of several side rods located on the same side are fixed with a guide member, the guide members are evenly distributed in the vertical direction and staggered in the horizontal direction, and each of the guide members is slidably distributed inside one of the guide folding grooves, the inner wall of the quenching pool is symmetrically provided with guide straight grooves, the number of the guide straight grooves is several and evenly distributed in the horizontal direction, and each of the guide members is slidably distributed inside one of the guide straight grooves.

[0013] On the basis of the side rod, additional guide parts, guide straight grooves and guide folding groove structures are provided on the side ends of the side rod, the side ends of the extruded parts and the inner side of the traditional quenching pool. The guide parts slide inside the guide straight grooves and the guide folding grooves, so that the side rod drives several rows of fitted steel pipe fittings to stretch in the vertical direction through the clamping plate, and the fitting relationship between each row of steel pipe fittings is released, leaving more space between the steel pipe fittings for heating and heat dissipation, thereby improving the working efficiency of traditional equipment and improving the quality of the finished steel pipe fittings.

[0014] In a preferred embodiment, a placement groove is provided on the top of the machine, the steel pipe fittings are stacked inside the placement groove, and side plates are symmetrically fixed on both sides of the top of the fixing seat, and the side plates are attached to the side ends of several side rods on the same side.

[0015] The placement groove is provided to limit the steel pipe fittings below, and the side plates are used to limit the steel pipe fittings on both sides, thereby ensuring the stability and neatness of the steel pipe fittings placed on the machine by the user, thereby providing conditions for the operation of the subsequent clamping mechanism and the dispersion mechanism, and ensuring the integrity of the operation of this equipment.

[0016] In a preferred embodiment, each of the side rods has a heat conduction zone extending through it in the vertical direction, the number of the heat conduction zones is several and evenly distributed in the horizontal direction, each of the side rods has a flow groove extending through it in the horizontal direction, the number of the flow grooves is several and evenly distributed in the horizontal direction, and each of the flow grooves corresponds to and extends through one of the clamping plates.

[0017] By providing a heat conduction zone and a circulation groove, conditions are provided for heat circulation inside the annealing furnace to ensure uniform heating of the steel pipe fittings. At the same time, when the steel pipe fittings are immersed in the interior of the quenching pool, the quenching oil in the quenching pool can enter the interior of the steel pipe fittings through the circulation groove, thereby further ensuring the annealing efficiency of the steel pipe fittings.

[0018] In a preferred embodiment, the inclination amplitudes of the plurality of arc-shaped grooves located on the same fixed seat increase successively from bottom to top, the plurality of guide folding grooves located on the same side end of the extrusion piece are staggered in the horizontal direction, and the lengths of the plurality of guide straight grooves located on the same side of the quenching pool increase successively.

[0019] By setting the sizes and positions of the arc grooves, guide folding grooves and guide straight grooves differently, it is ensured that when the side rods enter the annealing furnace and are immersed in the quenching pool, the side rods can move with different strokes, thereby ensuring that the stacked steel pipe fittings can be more diffused when dispersed, thereby ensuring the uniformity of the heating and heat dissipation of the steel pipe fittings.

[0020] As can be seen from the above, the annealing equipment using high-strength steel provided by the present invention has the following improvements and advantages compared with the prior art:

[0021] First, by arranging a number of side rods that are squeezed and moved on the top of the machine, as the machine moves with the steel pipe fittings toward the inside of the annealing furnace, the side rods are pushed by the extrusion parts, causing the side rods to extend with a number of clamping plates into the inside of the steel pipe fittings, thereby realizing fully automatic fixation of the steel pipe fittings, eliminating the steps of manually fixing or bundling the pipe bracket when using the traditional annealing furnace, reducing the cumbersomeness of using traditional equipment, and making it more convenient to use.

[0022] Secondly, guide members, guide straight grooves and guide folding groove structures are additionally arranged on the side ends of the side rods, the side ends of the extrusions and the inner sides of the traditional quenching pool. The guide members slide inside the guide straight grooves and the guide folding grooves, so that the side rods drive several rows of fitted steel pipe fittings to stretch and spread out in the vertical direction through the clamping plates, thereby releasing the fitting relationship between each row of steel pipe fittings and leaving more space between the steel pipe fittings for heating and heat dissipation, thereby improving the working efficiency of traditional equipment and improving the quality of the finished steel pipe fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of an annealing device for high-strength steel proposed by the present invention.

[0024] Figure 2 This is a schematic diagram of the top structure of a machine platform of a high-strength steel annealing equipment proposed in the present invention.

[0025] Figure 3 This is a schematic diagram of the mechanism and operating status of a high-strength steel annealing device proposed in the present invention.

[0026] Figure 4 This is a schematic diagram of the machine structure of a high-strength steel annealing equipment proposed by the present invention.

[0027] Figure 5 The invention provides a high-strength steel annealing device Figure 4 A magnified view of the structure at center.

[0028] Figure 6 This is an exploded view of the clamping mechanism structure of the high-strength steel annealing equipment proposed by the present invention.

[0029] Figure 7 The invention provides a high-strength steel annealing device Figure 6 A magnified view of the structure at point B.

[0030] Figure 8This is a sectional view of the side end structure of an annealing furnace of a high-strength steel annealing device proposed by the present invention.

[0031] In the figure: 1. Annealing furnace; 2. Guide rail; 3. Quenching pool; 4. Machine; 5. Steel pipe fittings; 6. Clamping mechanism; 601. Fixing seat; 602. Side rod; 603. Clamping plate; 604. Extrusion piece; 605. Side plate; 606. Receiving groove; 7. Material dispersing mechanism; 701. Arc groove; 702. Guide piece; 703. Guide folding groove; 704. Guide straight groove; 705. Elastic piece; 706. Arc portion; 8. Heat transfer zone; 9. Circulation groove. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] The annealing equipment for high-strength steel disclosed in the present invention is mainly used in the scenario of stacking annealing of steel pipes.

[0034] Reference Figures 1 to 8 , an annealing device for high-strength steel, comprising an annealing furnace 1, a guide rail 2 arranged at the side end of the annealing furnace 1, a quenching pool 3 arranged at the side end of the guide rail 2, a machine table 4 slidably mounted on the top of the guide rail 2 and steel pipe fittings 5 ​​stacked on the top of the machine table 4, and clamping mechanisms 6 for clamping and fixing the steel pipe fittings 5 ​​are symmetrically arranged on both sides of the machine table 4;

[0035] The quenching tank 3 and the annealing furnace 1 are provided with a dispersing mechanism 7 for dispersing the stacked steel pipes 5;

[0036] The steel pipe fittings 5 ​​are clamped and fixed by the clamping mechanism 6 , and the stacked steel pipe fittings 5 ​​are diffused and distributed in cooperation with the bulking mechanism 7 , so that the steel pipe fittings 5 ​​are heated evenly.

[0037] In this embodiment: when in use, the user stacks the steel pipe fittings 5 ​​on the top of the machine 4 in sequence through transportation equipment such as a crane and a forklift, and starts the machine 4 at the same time, causing the machine 4 to move along the guide rail 2 toward the inside of the annealing furnace 1. As the machine 4 moves toward the inside of the annealing furnace 1, the clamping mechanism 6 located at the side end of the top of the machine 4 operates, and clamps and fixes both sides of the steel pipe fittings 5 ​​by moving in the center, and as the machine 4 continues to move toward the inside of the annealing furnace 1, the bulking mechanism 7 starts to work, and the stacked steel pipe fittings 5 ​​are distributed in layers, so that the stacked steel pipe fittings 5 ​​are spread out. At this time, the user controls the annealing furnace 1 to close the furnace door structure and add After the heating work of the steel pipe fittings 5 ​​is completed, the user controls the furnace door structure of the side end of the annealing furnace 1 to open and close and stop the operation, and starts the machine 4 at the same time, so that the machine 4 moves along the guide rail 2 toward the outside of the annealing furnace 1, and is exposed to the air for 20 to 45 minutes for natural cooling. If quenching is required, the user uses the lifting equipment to put the machine 4 and the steel pipe fittings 5 ​​into the quenching pool 3. During this process, the bulk material mechanism 7 starts to work, and the stacked steel pipe fittings 5 ​​are layered and distributed again, so that the stacked steel pipe fittings 5 ​​are spread out, and the steel pipe fittings 5 ​​are immersed in the quenching pool 3 for quenching, and the annealing and quenching of the steel pipe fittings 5 ​​can be completed according to the processing requirements.

[0038] In the above scheme, considering that the steel pipe fittings 5 ​​stacked on the top of the machine 4 need to be manually fixed by iron chains and brackets each time before annealing, the operation is cumbersome, and the fixing steps of the steel pipe fittings 5 ​​need to be simplified and automated. The specific operations are as follows.

[0039] Reference Figures 1 to 8 In a preferred embodiment, the clamping mechanism 6 includes two groups of fixed seats 601 symmetrically fixed to the top side ends of the machine table 4, and side rods 602 are slidably distributed between each group of fixed seats 601. The number of side rods 602 is several and evenly distributed in the vertical direction. Several clamping disks 603 are rotatably installed on the side of each side rod 602, and several clamping disks 603 on several side rods 602 on the same side are interspersed and distributed in the horizontal direction. Each clamping disk 603 is clamped and fixed inside the side end of a steel pipe fitting 5. Extrusion pieces 604 are symmetrically arranged on both sides of the interior of the annealing furnace 1, and the side rods 602 and the extrusion pieces 604 are squeezed and fitted.

[0040] In this embodiment: when the machine 4 moves toward the inside of the annealing furnace 1, the side rods 602 located at the top side ends of the machine 4 will contact the two extrusion pieces 604 respectively. As the machine 4 continues to move toward the inside of the annealing furnace 1, the extrusion pieces 604 will continue to squeeze the side rods 602, and push the side rods 602 and the clamping plate 603 to move in an aligned manner through the arc surface structure. The clamping plate 603 extends to the inner sides of the two ends of the steel pipe fitting 5 by moving in an aligned manner, thereby clamping and fixing the two sides of the steel pipe fitting 5.

[0041] It should be additionally explained that: an elastic member 705 is fixed inside each arc-shaped groove 701 , and the elastic member 705 is pressed and fits against the side end of the side rod 602 , and the side rod 602 is pushed to reset and move by the elastic member 705 .

[0042] In the above scheme, considering that the steel pipe fittings 5 ​​pressed and fitted together will affect the uniformity of each other's heating and heat dissipation, it is necessary to disperse the stacked steel pipe fittings 5, and the specific operation is as follows.

[0043] Reference Figure 1 , Figures 4 to 8 In a preferred embodiment, the bulk material mechanism 7 includes an arc groove 701 opened at the side end of the fixed seat 601, the number of the arc grooves 701 is several and evenly distributed in the vertical direction, the side end of each side rod 602 is slidably distributed inside an arc groove 701, and the side end of each extrusion member 604 is provided with a guide folding groove 703, the number of the guide folding grooves 703 is several and evenly distributed in the vertical direction, and a guide member 702 is fixed to the side ends of several side rods 602 on the same side, the guide members 702 are evenly distributed in the vertical direction, and staggered in the horizontal direction, and each guide member 702 is slidably distributed inside a guide folding groove 703, and the inner wall of the quenching pool 3 is symmetrically provided with guide straight grooves 704, the number of the guide straight grooves 704 is several and evenly distributed in the horizontal direction, and each guide member 702 is slidably distributed inside a guide straight groove 704.

[0044] In this embodiment, as the machine 4 continues to move toward the interior of the annealing furnace 1, the guide member 702 at the side end of the side bar 602 will slide into the corresponding guide folding groove 703, thereby moving along the inside of the guide folding groove 703, while lifting the side bar 602, and the lifted side bar 602 will lift each layer of the steel pipe fittings 5 ​​through the clamping plate 603, so that the originally fitted steel pipe fittings 5 ​​are separated layer by layer, as shown in FIG. Figure 3 As shown; when the machine table 4 is hoisted into the quenching pool 3, the guide member 702 located at the side end of the side rod 602 will also slide into the corresponding guide straight groove 704, and as the machine table 4 continues to move downward, until the guide member 702 moves to the bottom of the guide straight groove 704, the side rod 602 is lifted in disguise, and the lifted side rod 602 will lift each layer of steel pipe fittings 5 ​​through the clamping plate 603, so that the originally fitted steel pipe fittings 5 ​​can be separated layer by layer.

[0045] It should be additionally explained that arcuate portions 706 are symmetrically arranged on the top of both sides of the inner wall of the quenching tank 3 , and the arcuate portions 706 assist the user in placing the machine 4 inside the quenching tank 3 .

[0046] Furthermore, it is supplemented that: the inclination amplitudes of the several arc-shaped grooves 701 located on the same fixed seat 601 increase successively from bottom to top, the several guide folding grooves 703 located on the side ends of the same extrusion piece 604 are staggered in the horizontal direction, and the lengths of the several guide straight grooves 704 located on the same side of the quenching pool 3 increase successively; resulting in a different movable stroke for each side rod 602, thereby ensuring the effectiveness of the dispersion between the steel pipe fittings 5.

[0047] In the above solution, considering that when the user stacks the steel pipes 5 , in order to ensure the stability of the steel pipes 5 , the specific operation is as follows.

[0048] Reference Figure 4 and Figure 6 In a preferred embodiment, side plates 605 are symmetrically fixed on both sides of the top of the fixing seat 601, and the side plates 605 are attached to the side ends of several side rods 602 on the same side. A placement groove 606 is opened on the top of the machine table 4, and the steel pipe fittings 5 ​​are stacked inside the placement groove 606.

[0049] In this embodiment: when the user stacks the steel pipe fittings 5 ​​on the top of the machine 4, the steel pipe fittings 5 ​​on the lower layer will be stuck in the placement groove 606, and the steel pipe fittings 5 ​​on the upper layer will be stacked on the top of the steel pipe fittings 5 ​​on the lower layer in sequence, and the side plates 605 located on both sides of the top of the machine 4 will limit the two ends of the steel pipe fittings 5, so that both ends of each stacked steel pipe fitting 5 can be flush.

[0050] In the above scheme, in order to ensure the heating and heat dissipation efficiency of the dispersed steel pipe 5, the specific operations are as follows.

[0051] Reference Figures 1 to 6 In a preferred embodiment, each side bar 602 has a heat conduction zone 8 extending therethrough in the vertical direction, and the number of the heat conduction zones 8 is several and evenly distributed in the horizontal direction. Each side bar 602 has a flow groove 9 extending therethrough in the horizontal direction, and the number of the flow grooves 9 is several and evenly distributed in the horizontal direction, and each flow groove 9 corresponds to and extends through a clamping plate 603.

[0052] In this embodiment: the high-temperature hot gas generated inside the annealing furnace 1 can flow freely through the heat conduction zone 8 and the circulation groove 9, thereby ensuring the uniformity of heat distribution inside the annealing furnace 1. At the same time, when the machine table 4 is immersed in the quenching pool 3, the quenching liquid inside the quenching pool 3 can enter the interior of the steel pipe fitting 5 through the circulation groove 9, thereby ensuring the quenching uniformity of the steel pipe fitting 5.

[0053] Working principle: when the machine 4 moves toward the inside of the annealing furnace 1, the side rod 602 located at the side end of the top of the machine 4 will contact the two extrusion pieces 604 respectively. As the machine 4 continues to move toward the inside of the annealing furnace 1, the extrusion piece 604 will continue to extrude the side rod 602, and push the side rod 602 and the clamping plate 603 to move in the center through the arc surface structure. The clamping plate 603 extends to the inner sides of both ends of the steel pipe 5 by moving in the center, thereby clamping and fixing the two sides of the steel pipe 5. Thereafter, the machine 4 continues to move toward the inside of the annealing furnace 1, and the guide piece 702 located at the side end of the side rod 602 will slide into the corresponding guide folding groove 703, thereby moving along the guide folding groove 703. While moving, the side rod 602 is lifted, and the lifted side rod 602 will lift each layer of the steel pipe 5 through the clamping plate 603, so that the originally fitted steel pipe 5 can be separated layer by layer. Figure 3 As shown; when the machine table 4 is hoisted into the quenching pool 3, the guide member 702 located at the side end of the side rod 602 will also slide into the corresponding guide straight groove 704, and as the machine table 4 continues to move downward, until the guide member 702 moves to the bottom of the guide straight groove 704, the side rod 602 is lifted in disguise, and the lifted side rod 602 will lift each layer of steel pipe fittings 5 ​​through the clamping plate 603, so that the originally fitted steel pipe fittings 5 ​​can be separated layer by layer.

[0054] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An annealing device for high-strength steel, comprising an annealing furnace (1), a guide rail (2) arranged at a side end of the annealing furnace (1), a quenching pool (3) arranged at a side end of the guide rail (2), a machine table (4) slidably mounted on the top of the guide rail (2), and steel pipes (5) stacked on the top of the machine table (4), characterized in that: Clamping mechanisms (6) for clamping and fixing the steel pipe (5) are symmetrically arranged on both sides of the machine platform (4); The quenching pool (3) and the annealing furnace (1) are provided with a dispersing mechanism (7) for dispersing the stacked steel pipes (5); The steel pipe fittings (5) are clamped and fixed by the clamping mechanism (6), and the stacked steel pipe fittings (5) are diffused and distributed in cooperation with the dispersing mechanism (7), so that the steel pipe fittings (5) are heated evenly; The clamping mechanism (6) comprises two groups of fixed seats (601) symmetrically fixed to the top side ends of the machine table (4), side bars (602) are slidably distributed between each group of the fixed seats (601), the number of the side bars (602) is several and evenly distributed in the vertical direction, a plurality of clamping discs (603) are rotatably mounted on the side of each side bar (602), and a plurality of the clamping discs (603) on a plurality of the side bars (602) on the same side are interlaced and distributed in the horizontal direction, each of the clamping discs (603) is clamped and fixed inside the side end of one of the steel pipe members (5), and extrusion pieces (604) are symmetrically arranged on both sides of the interior of the annealing furnace (1), and the side bars (602) and the extrusion pieces (604) are extruded and fitted; The dispersing mechanism (7) comprises an arcuate groove (701) formed on the side end of the fixing seat (601), the number of the arcuate grooves (701) being several and evenly distributed in the vertical direction, the side end of each side bar (602) being slidably distributed inside one of the arcuate grooves (701), the side end of each extrusion member (604) being formed with a guide folding groove (703), the number of the guide folding grooves (703) being several and evenly distributed in the vertical direction, and the side bars (602) on the same side being arranged on the same side. A guide member (702) is fixed to each side end, the guide members (702) are evenly distributed in the vertical direction and staggered in the horizontal direction, and each of the guide members (702) is slidably distributed inside one of the guide folding grooves (703), and guide straight grooves (704) are symmetrically opened on both sides of the inner wall of the quenching pool (3), the number of the guide straight grooves (704) is several and evenly distributed in the horizontal direction, and each of the guide members (702) is slidably distributed inside one of the guide straight grooves (704).

2. The annealing equipment for high-strength steel according to claim 1, characterized in that: Side plates (605) are symmetrically fixed on both sides of the top of the fixing seat (601), and the side plates (605) are attached to the side ends of a plurality of side bars (602) on the same side.

3. The annealing equipment for high-strength steel according to claim 2, characterized in that: The top of the machine platform (4) is provided with a placement groove (606), and the steel pipe pieces (5) are stacked and placed inside the placement groove (606).

4. The annealing equipment for high-strength steel according to claim 3, characterized in that: An elastic member (705) is fixed inside each of the arc-shaped grooves (701), and the elastic member (705) is pressed and fitted to the side end of the side rod (602).

5. The annealing equipment for high-strength steel according to claim 4, characterized in that: Arc portions (706) are symmetrically arranged on the tops of both sides of the inner wall of the quenching pool (3).

6. The annealing equipment for high-strength steel according to claim 5, characterized in that: Each of the side bars (602) has a heat conduction zone (8) extending through it in the vertical direction, and the heat conduction zones (8) are in a plurality and evenly distributed in the horizontal direction.

7. The annealing equipment for high-strength steel according to claim 6, characterized in that: A circulation groove (9) is provided in the interior of each of the side bars (602) in the horizontal direction. The circulation grooves (9) are multiple in number and are evenly distributed in the horizontal direction, and each of the circulation grooves (9) is correspondingly connected to one of the clamping plates (603).

8. The annealing equipment for high-strength steel according to claim 7, characterized in that: The inclination amplitudes of the plurality of arc-shaped grooves (701) located on the same fixed seat (601) are increased successively from bottom to top, the plurality of guide folding grooves (703) located on the side ends of the same extrusion member (604) are staggered in the horizontal direction, and the lengths of the plurality of guide straight grooves (704) located on the same side of the quenching pool (3) are increased successively.

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