A special steel strength detection device and its production process

Abstract

This application relates to the technical field of special steel production detection, in particular to a special steel strength detection device and its production process, including a base, a limiting device and a detection main body. Installation grooves are provided on both the left and right sides of the top of the base. A buffer groove is provided at the central position of the top of the base. The limiting device is arranged in the installation groove opened on the base, and the detection main body is arranged in the buffer groove opened on the base. A support frame is fixedly connected to the rear side of the top of the base, and a hydraulic telescopic rod is fixedly connected inside the support frame. In this application, through the provided base, installation groove, support frame, hydraulic telescopic rod, push column, limiting device, buffer groove and detection main body, after the austenitic stainless steel plate is positioned by the limiting device, the austenitic stainless steel plate can be directly pushed by the hydraulic telescopic rod, and then the strength of the produced austenitic stainless steel can be detected by calculating the deformation of the austenitic stainless steel plate.

Description

Technical Field

[0001] This application relates to the technical field of special steel production and testing, and specifically relates to a special steel strength detection device and its production process. Background Art

[0002] Special steel, also known as special steel, is the most important type of steel used in most industries of the national economy such as machinery, automobiles, military, chemical industry, household appliances, ships, transportation, railways, and emerging industries. Special steel is an important symbol to measure whether a country can become a steel power. Austenitic stainless steel refers to stainless steel with austenitic structure at room temperature. Austenitic stainless steel is non-magnetic and has high toughness and plasticity, and belongs to a type of special steel.

[0003] After traditional austenitic stainless steel is produced, the sample plate of austenitic stainless steel is usually directly placed on the support frame, and then the austenitic stainless steel plate is pushed by a hydraulic telescopic rod to detect the strength of the austenitic stainless steel. During the strength detection process of traditional austenitic stainless steel, because the austenitic stainless steel plate is directly placed on the support frame, it is impossible to position the austenitic stainless steel during the bending process, so a large amount of displacement occurs during the bending process of the austenitic stainless steel, affecting the detection accuracy. Therefore, a special steel strength detection device and its production process are proposed for the above problems. Summary of the Invention

[0004] The purpose of this application is to provide a special steel strength detection device and its production process to solve the problem that a large amount of displacement occurs during the bending process of austenitic stainless steel, affecting the detection progress.

[0005] To achieve the above purpose, this application provides the following technical solutions:

[0006] A special steel strength detection device and its production process, including a base, a limiting device, and a detection main body. Installation grooves are provided on both the left and right sides of the top of the base, a buffer groove is provided at the central position of the top of the base, the limiting device is arranged in the installation groove opened by the base, the detection main body is arranged in the buffer groove opened by the base, a support frame is fixedly connected to the rear side of the top of the base, a hydraulic telescopic rod is fixedly connected inside the support frame, and a pushing column is fixedly connected to the bottom end of the hydraulic telescopic rod.

[0007] Preferably, the limiting device includes a fixed block, a support block, a clamping body, a limiting block, a bolt, a positioning body and a lower runner. The fixed block is arranged in the installation groove formed in the base. One side of the fixed block is fixedly connected with a support block. The top of the support block is rotatably connected with evenly distributed lower runners. A placement groove is formed in the top of the fixed block. A limiting groove is formed in the bottom inner wall of the placement groove formed in the fixed block. A limiting block is arranged in the limiting groove formed in the fixed block. The top of the limiting block is provided with a clamping body. The clamping body is arranged in the placement groove formed in the fixed block. The top of the clamping body is provided with a positioning body. The bolt passes through the clamping body and the limiting block, and the bottom of the bolt is in threaded connection with the fixed block.

[0008] Preferably, the clamping body includes clamping blocks, upper runners, limiting rods, sliders, limiting springs, connecting rods and push plates. The bottom of the clamping blocks is rotatably connected with evenly distributed upper runners. Chute grooves are formed in the front and rear sides of the clamping blocks. The clamping blocks are fixedly connected with horizontally arranged limiting rods through the formed chute grooves. Sliders are arranged on the outer sides of the limiting rods. One side of the slider away from the clamping block is fixedly connected with a connecting rod. The bottom of the connecting rod close to the clamping block is fixedly connected with a push plate. Limiting springs are arranged on the outer sides of one ends of the limiting rods close to the fixed block. The top of the clamping blocks is provided with a positioning body.

[0009] Preferably, one end of the clamping block away from the upper runner is arranged in the placement groove formed in the fixed block. One end of the bottom of the limiting groove formed in the fixed block is provided with a limiting block. The clamping block is arranged above the support block, and the upper runner is arranged above the lower runner.

[0010] Preferably, the positioning body includes a sliding plate, a fixing plate, sliding rods, positioning springs, clamping plates, rollers, connecting blocks and connecting plates. Connecting rods are fixedly connected to the front and rear sides of the bottom of the sliding plate. An empty groove is formed in the sliding plate. Vertically arranged and evenly distributed sliding rods are fixedly connected to the sliding plate through the formed empty groove. A fixing plate is arranged in the empty groove formed in the sliding plate. The sliding rods penetrate through the fixing plate. A receiving groove is formed in the top of the fixing plate at the positioning position of the sliding rod. Positioning springs are arranged on the outer sides of the top ends of the sliding rods. The bottoms of the positioning springs are arranged in the receiving grooves formed in the fixing plate. The bottom of the fixing plate is fixedly connected with a clamping plate penetrating through the bottom of the sliding plate. Connecting blocks are fixedly connected to the left and right sides of the fixing plate. One side of the connecting block away from the fixing plate is fixedly connected with a connecting plate. Positioning grooves are formed in the top of the clamping block in an evenly distributed manner. The clamping plate is arranged in the positioning grooves formed in the clamping block.

[0011] Preferably, a roller is rotatably connected to one end of the clamping plate away from the fixing plate, and the bottom of the roller is in close contact with the bottom inner wall of the positioning groove formed in the clamping block.

[0012] Preferably, the push plate is arranged between the clamping block and the support block. Connecting rods are fixedly connected to both the front and rear ends of the push plate. The horizontal plane where the upper surface of the push plate is located is at the same horizontal level as the horizontal plane at the bottom of the upper runner.

[0013] Preferably, the detection body includes a connection body, a pressure sensor, a wire, a rubber block, a fixing rod, and a fixing ball. A pressure sensor is fixedly connected to the top of the connection body. A wire is fixedly connected to the front of the connection body. A longitudinally arranged fixing rod is fixedly connected to the bottom of the connection body. Fixing balls are fixedly connected to the bottom of the fixing rod and are evenly distributed longitudinally. A rubber block is arranged at the bottom of the connection body. The fixing rod and the fixing balls are both arranged inside the top of the rubber block. A deformation groove is formed in the inner bottom of the rubber block. The bottom of the connection body and the rubber block are both arranged inside the buffer groove opened in the base.

[0014] Preferably, clamping grooves are formed in the inner walls on both the left and right sides of the buffer groove opened in the base. Clamping balls are fixedly connected to the upper sides on both the left and right sides of the rubber block and are evenly distributed longitudinally. The side of the clamping ball away from the rubber block is arranged inside the clamping groove opened in the base. A pushing column is arranged directly above the pressure sensor.

[0015] Preferably, it includes the following production steps:

[0016] Step 1: Charge nickel-chromium pig iron with different low grades into an electric furnace for blowing. After desiliconization and decarburization, a stainless steel mother liquor is obtained. The weight percentages of the added substances are as follows: C: 1%-3%, Si: 0.10%-2%. According to the content requirements of the stainless steel finished product, Cr is adjusted to half of the finished product, and high-carbon ferrochrome is used to adjust the Ni in the stainless steel mother liquor in the electric furnace to an appropriate content.

[0017] Step 2: Add the stainless steel mother liquor from Step 1 into an AOD furnace, ensuring that the temperature of the stainless steel mother liquor before being added to the AOD furnace is greater than 1500 degrees Celsius. Then add high-carbon ferrochrome. According to the silicon content in the furnace, adjust the top lance flow rate to 30-90 m3 / min. At this time, for the side blowing lance oxygen, after blowing silicon to a weight percentage of 0.2% in the early stage, then blow nitrogen to reduce Cr2O3 in the slag. Then control the basicity of the molten steel at 1.4. Finally, through slag flowing, a crude austenite is smelted.

[0018] Step 3: Add metallurgical lime, high-carbon ferrochrome, nickel iron, and scrap steel to the crude austenite stainless steel made in Step 2 for the first-stage decarburization. The volume ratio of oxygen to nitrogen is 7:1, and the flow rates are as follows: O2: 200 Nm3 / min, the oxygen top lance is 100 Nm3 / min, the side blowing lance is 100 Nm3 / min, N2: 30 Nm3 / min. When the decarburization reaches 0.45%, the first-stage decarburized stainless steel is obtained.

[0019] Step 4: Adjust the nitrogen-oxygen ratio, carry out secondary decarburization, adjust the carbon content to the level required for the finished product, and finally loosely send it into the LF furnace. Carry out fine adjustment of composition and temperature adjustment in the LF furnace to obtain austenitic stainless steel;

[0020] Step 5: Take a part of the austenitic stainless steel, make it into a stainless steel plate with appropriate thickness, and finally cut the austenitic stainless steel into appropriate specifications, and test the austenitic stainless steel.

[0021] Compared with the prior art, the beneficial effects of this application are:

[0022] 1. In this application, through the base, installation groove, support frame, hydraulic telescopic rod, push column, limiting device, buffer groove and detection body provided, after the limiting device positions the austenitic stainless steel plate, the austenitic stainless steel plate can be directly pushed by the hydraulic telescopic rod, and then by calculating the deformation of the austenitic stainless steel plate, the strength of the produced austenitic stainless steel can be detected;

[0023] 2. In this application, through the fixed block, support block, clamping block, sliding groove, upper runner, limiting rod, slider, limiting spring, connecting rod, push plate, limiting groove, placement groove, limiting block, bolt and lower runner, the clamping block can be driven to move towards the support block by rotating the bolt. At this time, under the action of the upper runner and the lower runner, the austenitic stainless steel plate is positioned, which is convenient for applying pressure to the austenitic stainless steel plate. At the same time, the limiting spring drives the push plate to clamp the austenitic stainless steel plate through the slider and the connecting rod, so that the central position of the austenitic stainless steel plate is as aligned with the push column as possible, making the bending of the austenitic stainless steel more stable. At the same time, when the austenitic stainless steel plate is bent, the austenitic stainless steel plate can drive the upper runner and the lower runner to rotate simultaneously, reducing the clamping friction force and making the bending process more accurate. During the movement of the clamping block, the limiting block and the clamping block can be limited through the limiting groove and the placement groove opened by the fixed block, so that the clamping block can move stably and the clamping is more stable;

[0024] 3. In this application, through the clamping block, positioning groove, sliding plate, fixing plate, storage groove, sliding rod, positioning spring, clamping plate, roller, connecting block and connecting plate, the sliding plate can be limited by the clamping block arranged in the positioning groove, so as to position the connecting block and the push plate, which is convenient for the placement of the austenitic stainless steel plate. Then, the fixing plate is moved upward by the connecting plate and the connecting block, so that the clamping plate leaves the positioning opened by the clamping block. When the limiting spring pushes the sliding plate to move through the slider and the connecting rod, the roller can roll on the surface of the clamping block, making the movement of the sliding plate and the push plate more stable. After the detection is completed, directly push the sliding plate. When the clamping plate moves to the position of the positioning groove opened by the clamping block, the positioning spring pushes the fixing plate and the clamping plate to move downward, so that the clamping plate quickly snaps into the positioning groove opened by the clamping block, realizing the quick positioning of the sliding plate;

[0025] 4. In this application, through the arranged base, buffer groove, connection body, pressure sensor, wire, rubber block, fixing rod, fixing ball, deformation groove, clamping ball and clamping groove, when the austenitic stainless steel plate is bent, it can contact the pressure sensor, and then transfer the data to the external controller under the action of the wire. The external controller controls the hydraulic telescopic rod to stop extending. At this time, the hydraulic telescopic rod continues to push the austenitic stainless steel plate to deform under the action of inertia. At this time, the austenitic stainless steel plate pushes the connection body to move through the pressure sensor. At this time, the rubber block deforms through the deformation groove to buffer the connection body and prevent the connection body from being damaged. When the rubber block and the connection body are installed, the rubber block pushes the clamping ball to be arranged in the clamping groove opened by the base to support the rubber block and the connection body, making the position of the connection body more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of this application;

[0027] Figure 2 It is a schematic diagram of the structure of the base of this application;

[0028] Figure 3 It is a schematic diagram of the structure of the limiting device of this application;

[0029] Figure 4 It is a schematic diagram of the installation structure of the bolt of this application;

[0030] Figure 5 It is a schematic diagram of the installation structure of the lower runner of this application;

[0031] Figure 6 It is a schematic diagram of the structure of the clamping body of this application;

[0032] Figure 7 It is a schematic diagram of the installation structure of the positioning body of this application;

[0033] Figure 8 For this application Figure 7 Schematic diagram of the structure at position A;

[0034] Figure 9 It is a schematic diagram of the installation structure of the roller of this application;

[0035] Figure 10 It is a schematic diagram of the installation structure of the clamping block of this application;

[0036] Figure 11 For this application Figure 10 Schematic diagram of the structure at position B;

[0037] Figure 12 It is a schematic diagram of the installation structure of the detection body of this application;

[0038] Figure 13 For this application Figure 12 Structure schematic diagram at position C;

[0039] Figure 14 Structure schematic diagram for the installation of the fixed ball of this application;

[0040] Figure 15 Structure schematic diagram for the installation of the clamping ball of this application.

[0041] In the figure: 1, base; 2, installation groove; 3, support frame; 4, hydraulic telescopic rod; 5, pushing column; 6, limiting device; 61, fixing block; 62, supporting block; 63, clamping main body; 631, clamping block; 632, sliding groove; 633, upper runner; 634, limiting rod; 635, sliding block; 636, limiting spring; 637, connecting rod; 638, pushing plate; 639, positioning groove; 64, limiting groove; 65, placing groove; 66, limiting block; 67, bolt; 68, positioning main body; 681, sliding plate; 682, fixing plate; 683, storage groove; 684, sliding rod; 685, positioning spring; 686, clamping plate; 687, roller; 688, connecting block; 689, connecting plate; 69, lower runner; 7, buffer groove; 8, detection main body; 81, connecting main body; 82, pressure sensor; 83, wire; 84, rubber block; 85, fixing rod; 86, fixed ball; 87, deformation groove; 88, clamping ball; 9, clamping groove. Specific embodiments

[0042] Please refer to Figures 1-15 , this application provides a technical solution:

[0043] A special steel strength detection device and its production process, including a base 1, a limiting device 6 and a detection main body 8. Installation grooves 2 are opened on both the left and right sides of the top of the base 1, a buffer groove 7 is opened at the central position of the top of the base 1, a limiting device 6 is arranged in the installation groove 2 opened by the base 1, a detection main body 8 is arranged in the buffer groove 7 opened by the base 1, a support frame 3 is fixedly connected to the rear side of the top of the base 1, a hydraulic telescopic rod 4 is fixedly connected inside the support frame 3, and the bottom end of the hydraulic telescopic rod 4 is fixedly connected to a pushing column 5. Through this setting, after the austenitic stainless steel plate is positioned by the limiting device 6, the austenitic stainless steel plate can be directly pushed by the hydraulic telescopic rod 4, and then by calculating the deformation of the austenitic stainless steel plate, the strength of the produced austenitic stainless steel can be detected.

[0044] Such as Figures 1-6As shown, the limiting device 6 includes a fixed block 61, a support block 62, a clamping body 63, a limiting block 66, a bolt 67, a positioning body 68 and a lower runner 69. The fixed block 61 is arranged in the installation groove 2 opened on the base 1. One side of the fixed block 61 is fixedly connected with the support block 62. The top of the support block 62 is rotatably connected with evenly distributed lower runners 69. The top of the fixed block 61 is provided with a placement groove 65. The bottom inner wall of the placement groove 65 opened on the fixed block 61 is provided with a limiting groove 64. A limiting block 66 is arranged in the limiting groove 64 opened on the fixed block 61. The top of the limiting block 66 is provided with a clamping body 63. The clamping body 63 is arranged in the placement groove 65 opened on the fixed block 61. The top of the clamping body 63 is provided with a positioning body 68. The bolt 67 passes through the clamping body 63 and the limiting block 66. The bottom of the bolt 67 is threadedly connected with the fixed block 61. The clamping body 63 includes a clamping block 631, upper runners 633, limiting rods 634, sliders 635, limiting springs 636, connecting rods 637 and a push plate 638. The bottom of the clamping block 631 is rotatably connected with evenly distributed upper runners 633. Both the front and rear sides of the clamping block 631 are provided with sliding grooves 632. The clamping block 631 is fixedly connected with horizontally arranged limiting rods 634 through the sliding grooves 632 opened thereon. The outer sides of the limiting rods 634 are provided with sliders 635. One side of the slider 635 away from the clamping block 631 is fixedly connected with the connecting rod 637. The bottom of the connecting rod 637 close to the clamping block 631 is fixedly connected with the push plate 638. The outer sides of one ends of the limiting rods 634 close to the fixed block 61 are provided with limiting springs 636. The top of the clamping block 631 is provided with a positioning body 68. One end of the clamping block 631 away from the upper runner 633 is arranged in the placement groove 65 opened on the fixed block 61. The bottom of one end of the limiting groove 64 opened on the fixed block 61 is provided with a limiting block 66. The clamping block 631 is arranged above the support block 62. The upper runners 633 are arranged above the lower runners 69. Through this setting, the clamping block 631 can be driven to move towards the support block 62 by rotating the bolt 67. At this time, under the action of the upper runners 633 and the lower runners 69, the austenitic stainless steel plate is positioned, which is convenient for applying pressure to the austenitic stainless steel plate. At the same time, the limiting spring 636 drives the push plate 638 through the slider 635 and the connecting rod 637 to clamp the austenitic stainless steel plate, so that the central position of the austenitic stainless steel plate is as aligned with the pushing column 5 as possible, making the bending of the austenitic stainless steel plate more stable. At the same time, when the austenitic stainless steel plate is bent, the austenitic stainless steel plate can drive the upper runners 633 and the lower runners 69 to rotate simultaneously, reducing the frictional force of clamping and making the bending process more accurate. During the movement of the clamping block 631, the limiting block 66 and the clamping block 631 can be limited through the limiting groove 64 and the placement groove 65 opened on the fixed block 61, so that the clamping block 631 can move stably and the clamping is more stable.

[0045] As Figures 3-11As shown, the positioning body 68 includes a sliding plate 681, a fixing plate 682, a sliding rod 684, a positioning spring 685, a clamping plate 686, a roller 687, a connecting block 688 and a connecting plate 689. Connecting rods 637 are fixedly connected to both the front and rear sides of the bottom of the sliding plate 681. An empty groove is formed in the sliding plate 681. The sliding plate 681 is fixedly connected with vertically arranged and uniformly distributed sliding rods 684 through the formed empty groove. A fixing plate 682 is arranged in the empty groove formed in the sliding plate 681. The sliding rod 684 penetrates through the fixing plate 682. A receiving groove 683 is formed at the top of the fixing plate 682 at the positioning position of the sliding rod 684. A positioning spring 685 is arranged on the outer side of the top end of the sliding rod 684. The bottom of the positioning spring 685 is arranged in the receiving groove 683 formed in the fixing plate 682. A clamping plate 686 fixedly connected to the bottom of the fixing plate 682 and penetrating through the bottom of the sliding plate 681. Connecting blocks 688 are fixedly connected to both the left and right sides of the fixing plate 682. A connecting plate 689 is fixedly connected to the side of the connecting block 688 away from the fixing plate 682. Positioning grooves 639 are formed in a uniformly distributed manner at the top of the clamping block 631. The clamping plate 686 is arranged in the positioning groove 639 formed in the clamping block 631. A roller 687 is rotatably connected to the end of the clamping plate 686 away from the fixing plate 682. The bottom of the roller 687 is in close contact with the inner wall of the bottom of the positioning groove 639 formed in the clamping block 631. A push plate 638 is arranged between the clamping block 631 and the support block 62. Connecting rods 637 are fixedly connected to both the front and rear ends of the push plate 638. The horizontal plane of the upper surface of the push plate 638 is at the same horizontal plane as the bottom horizontal plane of the upper runner 633. Through this setting, the sliding plate 681 can be limited by the clamping block arranged in the positioning groove 639 formed in the clamping block 631, so as to position the connecting block 688 and the push plate 638, facilitating the placement of austenitic stainless steel plates. Then, the fixing plate 682 is moved upward through the connecting plate 689 and the connecting block 688, so that the clamping plate 686 leaves the positioning formed in the clamping block 631. When the limiting spring 636 pushes the sliding plate 681 to move through the slider 635 and the connecting rod 637, the roller 687 can roll on the surface of the clamping block 631, making the movement of the sliding plate 681 and the push plate 638 more stable. After the detection is completed, the sliding plate 681 is directly pushed. After the clamping plate 686 moves to the position of the positioning groove 639 formed in the clamping block 631, the positioning spring 685 pushes the fixing plate 682 and the clamping plate 686 to move downward, so that the clamping plate 686 quickly snaps into the positioning groove 639 formed in the clamping block 631, realizing the quick positioning of the sliding plate 681.

[0046] As Figures 12-15As shown in the figure, the detection body 8 includes a connecting body 81, a pressure sensor 82, a wire 83, a rubber block 84, a fixing rod 85 and a fixing ball 86. At the top of the connecting body 81, a pressure sensor 82 is fixedly connected. In front of the connecting body 81, a wire 83 is fixedly connected. At the bottom of the connecting body 81, a longitudinally arranged fixing rod 85 is fixedly connected. At the bottom of the fixing rod 85, fixing balls 86 evenly distributed longitudinally are fixedly connected. At the bottom of the connecting body 81, there is a rubber block 84. The fixing rod 85 and the fixing balls 86 are both arranged inside the top of the rubber block 84. Inside the bottom of the rubber block 84, a deformation groove 87 is opened. The bottom of the connecting body 81 and the rubber block 84 are both arranged inside the buffer groove 7 opened on the base 1. On both the left and right inner walls of the buffer groove 7 opened on the base 1, clamping grooves 9 are opened. On the upper sides of both the left and right sides of the rubber block 84, clamping balls 88 evenly distributed longitudinally are fixedly connected. The side of the clamping ball 88 away from the rubber block 84 is arranged inside the clamping groove 9 opened on the base 1. Right above the pressure sensor 82, there is a pushing column 5. Through this setting, when the austenitic stainless steel plate is bent, it contacts the pressure sensor 82, and then under the action of the wire 83, the data is transmitted to the external controller. Through the external controller, the hydraulic telescopic rod 4 is controlled to stop extending. At this time, under the action of inertia, the hydraulic telescopic rod 4 continues to push the austenitic stainless steel plate to deform. At this time, the austenitic stainless steel plate pushes the connecting body 81 to move through the pressure sensor 82. At this time, the rubber block 84 deforms through the deformation groove 87 to buffer the connecting body 81 and prevent the connecting body 81 from being damaged. When installing the connecting body 81 and the rubber block 84, the rubber block 84 pushes the clamping ball 88 to be arranged inside the clamping groove 9 opened on the base 1, so as to support the rubber block 84 and the connecting body 81 and make the position of the connecting body 81 more stable.

[0047] A special steel strength detection device and its production process include the following production steps:

[0048] Step 1: Pour different low-grade nickel-chromium pig irons into an electric furnace for blowing, and then obtain stainless steel mother liquor through desiliconization and decarburization. The weight percentages of the added substances are as follows: C: 1%-3%, Si: 0.10%-2%. According to the content requirements of the stainless steel finished product, Cr is adjusted to half of the finished product, and high-carbon ferrochrome is used to adjust the Ni in the stainless steel mother liquor in the electric furnace to an appropriate content;

[0049] Step 2: Add the stainless steel mother liquor in Step 1 into an AOD furnace, ensure that the temperature of the stainless steel mother liquor before adding it to the AOD furnace is greater than 1500 degrees Celsius, and then add high-carbon ferrochrome. According to the silicon content in the furnace, adjust the top lance flow rate to 30~90 m3 / min. At this time, for the side blowing lance oxygen, after blowing silicon to a weight percentage of 0.2% in the early stage, then blow nitrogen to reduce Cr2O3 in the slag, and then control the basicity of the molten steel at 1.4. Finally, through slag flowing, rough austenite is smelted;

[0050] Step 3: Add metallurgical lime, high-carbon ferrochrome, ferronickel, and scrap steel to the crude austenitic stainless steel made in Step 2 for primary decarburization. The volume ratio of oxygen to nitrogen is 7:1, and the flow rates are as follows: O2: 200 Nm3 / min, the oxygen top lance is 100 Nm3 / min, the side blowing lance is 100 Nm3 / min, N2: 30 Nm3 / min. When the decarburization reaches 0.45%, the primary decarburized stainless steel is obtained.

[0051] Step 4: Adjust the nitrogen-oxygen ratio for secondary decarburization, adjust the carbon content to the level required for the finished product, and finally send it loosely into the LF furnace for fine adjustment of composition and temperature to obtain austenitic stainless steel.

[0052] Step 5: Take a part of the austenitic stainless steel, make it into stainless steel plates with appropriate thickness, and finally cut the austenitic stainless steel into appropriate specifications for testing the austenitic stainless steel.

[0053] Workflow: When this special steel strength detection device is in use, first place the austenitic stainless steel plate to be tested on the top of the lower runner 69 rotatably connected to the support block 62. Then rotate the bolt 67. The bottom of the bolt 67 is threadedly connected to the fixed block 61. Push the clamping block 631 downward through the bolt 67. At this time, the clamping block 631 slides in the placement groove 65 opened in the fixed block 61. At the same time, the clamping block 631 pushes the limiting block 66 to slide in the limiting groove 64 opened in the fixed block 61 until the bottom of the upper runner 633 opened at the bottom of the clamping block 631 contacts the austenitic stainless steel plate. After both clamping blocks 631 at both ends have moved, pull up the connecting plate 689. The connecting plate 689 drives the fixing plate 682 to move upward along the outer side of the sliding rod 684 fixedly connected in the sliding plate 681 through the connecting block 688. At this time, the positioning spring 685 is compressed under force. The fixing plate 682 drives the clamping plate 686 to move upward until the clamping plate 686 leaves the positioning groove 639 opened at the top of the clamping block 631. Then move the sliding plate 681 towards the support frame 3 so that the clamping plate 686 leaves the positioning groove 639 opened in the clamping block 631. Then slowly release the sliding plates 681 provided on the left and right sides. At this time, the limiting spring 636 pushes the slider 635 to slide along the outer side of the limiting rod 634. At the same time, the slider 635 drives the sliding plate 681 and the push plate 638 to move towards the support frame 3 together through the connecting rod 637. At this time, the roller 687 rotatably connected to the bottom of the clamping plate 686 rolls on the top of the clamping block 631 until the push plate 638 contacts the side of the austenitic stainless steel plate to be detected. At this time, input the three-dimensional parameters of this austenitic stainless steel plate into the external controller, and then start the hydraulic telescopic rod 4 through the external controller. The hydraulic telescopic rod 4 pushes the pushing column 5 downward, and pushes the austenitic stainless steel plate through the pushing column. At this time, the austenitic stainless steel plate gradually bends. At this time, the external controller can display the pressure of the hydraulic telescopic rod 4 until the bottom of the austenitic stainless steel plate contacts the pressure sensor 82. The pressure sensor 82 transmits the pressure value to the external controller through the connection body 81 and the wire 83 after receiving the pressure. At this time, the external controller controls the hydraulic telescopic rod 4 to stop extending. Under the action of inertia, the hydraulic telescopic rod 4 will continue to extend downward. At this time, the pressure sensor 82 pushes the rubber block 84 to deform under the action of the deformation groove 87 through the connection body 81. At this time, the clamping balls 88 fixedly connected to both sides of the rubber block 84 slide in the card slots 9 opened in the base 1 until the hydraulic telescopic rod 4 completely stops extending. Then control the hydraulic telescopic rod 4 to contract through the external controller. At this time, the external controller can calculate the strength of the austenitic stainless steel. Then reverse-rotate the bolt 67. Then the clamping block 631 can be moved upward, and then take out the bent austenitic stainless steel plate. Push the sliding plate 681. When the sliding plate 681 drives the clamping plate 686 to move above the positioning groove 639 opened in the clamping block 631, the positioning spring 685 pushes the clamping plate 686 into the positioning groove 639 opened in the clamping block 631 through the sliding plate 681.Realize the positioning of the skateboard 681 and the push plate 638.,

[0054] In this article, specific examples are used to elaborate on the principles and implementation methods of this application. The descriptions of the above examples are only used to help understand the method and its core idea of this application. The above is only the preferred implementation method of this application. It should be noted that due to the limited nature of written expression and the objectively infinite specific structures, for those of ordinary skill in the art of this technology, without departing from the principles of this application, several improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, refinements, changes or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, should all be regarded as the protection scope of this application.

Claims

1. A special steel strength detection device, comprising a base (1), a limiting device (6) and a detection main body (8), characterized in that: On both the left and right sides of the top of the base (1), mounting grooves (2) are provided. At the central position of the top of the base (1), a buffer groove (7) is provided. A limiting device (6) is arranged in the mounting groove (2) opened in the base (1), and a detection body (8) is arranged in the buffer groove (7) opened in the base (1). At the rear side of the top of the base (1), a support frame (3) is fixedly connected. A hydraulic telescopic rod (4) is fixedly connected in the support frame (3), and a push column (5) is fixedly connected to the bottom end of the hydraulic telescopic rod (4). The limiting device (6) includes a fixed block (61), a support block (62), a clamping body (63), a limiting block (66), a bolt (67), a positioning body (68), and a lower runner (69). The fixed block (61) is arranged in the mounting groove (2) opened in the base (1). A support block (62) is fixedly connected to one side of the fixed block (61). Evenly distributed lower runners (69) are rotatably connected inside the top of the support block (62). A placement groove (65) is opened at the top of the fixed block (61). A limiting groove (64) is opened on the bottom inner wall of the placement groove (65) opened in the fixed block (61). A limiting block (66) is arranged in the limiting groove (64) opened in the fixed block (61). A clamping body (63) is installed on the top of the limiting block (66). The clamping body (63) is arranged in the placement groove (65) opened in the fixed block (61). A positioning body (68) is installed on the top of the clamping body (63). The bolt (67) penetrates through the clamping body (63) and the limiting block (66), and the bottom of the bolt (67) is threadedly connected to the fixed block (61). The clamping body (63) includes a clamping block (631), upper runners (633), limiting rods (634), sliders (635), limiting springs (636), connecting rods (637), and a push plate (638). Evenly distributed upper runners (633) are rotatably connected to the bottom of the clamping block (631). Chute grooves (632) are opened on both the front and rear sides inside the clamping block (631). The clamping block (631) is fixedly connected to a horizontally arranged limiting rod (634) through the opened chute grooves (632). Sliders (635) are arranged on the outer sides of the limiting rods (634). A connecting rod (637) is fixedly connected to the side of the slider (635) away from the clamping block (631). A push plate (638) is fixedly connected to the bottom of the side of the connecting rod (637) close to the clamping block (631). Limiting springs (636) are arranged on the outer sides of the ends of the limiting rods (634) close to the fixed block (61). A positioning body (68) is arranged on the top of the clamping block (631).

2. The special steel strength detection device according to claim 1, characterized in that: The detection body (8) includes a connection body (81), a pressure sensor (82), a wire (83), a rubber block (84), a fixing rod (85) and a fixing ball (86). A pressure sensor (82) is fixedly connected to the top of the connection body (81). A wire (83) is fixedly connected to the front of the connection body (81). A longitudinally arranged fixing rod (85) is fixedly connected to the bottom of the connection body (81). Fixing balls (86) are fixedly connected to the bottom of the fixing rod (85) and are evenly distributed longitudinally. A rubber block (84) is arranged at the bottom of the connection body (81). The fixing rod (85) and the fixing balls (86) are both arranged inside the top of the rubber block (84). A deformation groove (87) is formed at the inner bottom of the rubber block (84). The bottom of the connection body (81) and the rubber block (84) are both arranged inside a buffer groove (7) formed in the base (1). Clamping grooves (9) are formed in the inner walls on the left and right sides of the buffer groove (7) formed in the base (1). Clamping balls (88) are fixedly connected to the upper sides on the left and right sides of the rubber block (84) and are evenly distributed longitudinally. One side of the clamping balls (88) away from the rubber block (84) is arranged inside the clamping grooves (9) formed in the base (1). A push column (5) is arranged directly above the pressure sensor (82).

3. The special steel strength detection device according to claim 1, characterized in that: One end of the clamping block (631) away from the upper runner (633) is arranged inside a placement groove (65) formed in the fixed block (61). A limiting block (66) is arranged at the bottom of one end of the limiting groove (64) formed in the fixed block (61). The clamping block (631) is arranged above the support block (62). The upper runner (633) is arranged above the lower runner (69).

4. A special steel strength detection device according to claim 1, characterized in that: The positioning body (68) includes a sliding plate (681), a fixing plate (682), a sliding rod (684), a positioning spring (685), a clamping plate (686), a roller (687), a connecting block (688) and a connecting plate (689). Both the front and rear sides of the bottom of the sliding plate (681) are fixedly connected with connecting rods (637). An empty groove is formed in the sliding plate (681). The sliding plate (681) is fixedly connected with vertically arranged and evenly distributed sliding rods (684) through the formed empty groove. A fixing plate (682) is arranged in the empty groove formed in the sliding plate (681). The sliding rod (684) penetrates through the fixing plate (682). A receiving groove (683) is formed at the top of the fixing plate (682) at the positioning position of the sliding rod (684). A positioning spring (685) is arranged on the outer side of the top end of the sliding rod (684). The bottom of the positioning spring (685) is arranged in the receiving groove (683) formed in the fixing plate (682). The bottom of the fixing plate (682) is fixedly connected with a clamping plate (686) penetrating through the bottom of the sliding plate (681). Connecting blocks (688) are fixedly connected to both the left and right sides of the fixing plate (682). A connecting plate (689) is fixedly connected to the side of the connecting block (688) away from the fixing plate (682). Uniformly distributed positioning grooves (639) are formed at the top of the clamping block (631). The clamping plate (686) is arranged in the positioning grooves (639) formed in the clamping block (631).

5. The special steel strength detection device according to claim 4, characterized in that: A roller (687) is rotatably connected to one end of the clamping plate (686) away from the fixing plate (682). The bottom of the roller (687) is in close fit with the inner wall of the bottom of the positioning groove (639) formed in the clamping block (631).

6. The special steel strength detection device according to claim 1, characterized in that: The pushing plate (638) is arranged between the clamping block (631) and the support block (62). Connecting rods (637) are fixedly connected to both the front and rear ends of the pushing plate (638). The horizontal plane where the upper surface of the pushing plate (638) is located is at the same horizontal plane as the horizontal plane at the bottom of the upper runner (633).

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