Method for achieving online adjustment of pressure balance of hydraulic cylinders for fan-shaped section support of continuous casting machine

Abstract

A method for achieving online adjustment of pressure balance of hydraulic cylinders for a fan-shaped section support of a continuous casting machine. If a pressure difference between a hydraulic cylinder having a highest closing pressure and a hydraulic cylinder having a lowest closing pressure in the fan-shaped section is greater than a set value I, or a difference between the closing pressure of a given outlet in the fan-shaped section and the closing pressure of an adjacent inlet in the fan-shaped section is greater than a set value II, it is considered that the pressure of hydraulic cylinders is unbalanced and a roller gap of the fan-shaped section requires online adjustment. Using the present method method, the roller gap of a fan-shaped section can be adjusted online without stopping the machine, and a modified position sensor deviation HMI correction position is assigned to a current sensor offset actual reading; the actual roller gap of the fan-shaped section will change, and the position reference values of four hydraulic cylinders in the fan-shaped section can be adjusted online, avoiding the problem of unbalanced pressure of the hydraulic cylinders of the fan-shaped section support due to an inaccurate position reference value of a fan-shaped section position sensor or abnormal degrees of openness of an inlet and an outlet of the fan-shaped section.

Description

A method for achieving online pressure balance adjustment of hydraulic cylinders in a continuous casting machine segment frame Technical Field

[0001] The present invention relates to the field of continuous casting in the metallurgical industry, and in particular to a method for realizing online pressure balance adjustment of hydraulic cylinders of a sector frame of a continuous casting machine. Background Art

[0002] The continuous casting machine's segments are used to define the thickness of the slab during solidification through extrusion, preventing deformation and effectively controlling the thickness of the slab. Due to the need for continuous production, the continuous casting machine cannot be frequently shut down. During casting, the segment roll gap is measured by segment position sensors. Inaccurate segment roll gap measurement can cause the pressure in the segment's four hydraulic cylinders to fluctuate, leading to an imbalance in the closing pressure of the four hydraulic cylinders. This can cause significant damage to the segment equipment. Unbalanced forces on the slab can lead to product quality issues such as bulging and center segregation.

[0003] Summary of the Invention

[0004] The purpose of the present invention is to provide a method for achieving online pressure balance adjustment of the hydraulic cylinder of the continuous casting machine segment frame, and to adjust the segment roll gap online on the HMI segment monitoring window screen, thereby improving the reliability of the online segment opening degree and ensuring product quality.

[0005] To achieve the above object, the present invention is implemented through the following technical solutions:

[0006] A method for achieving online pressure balance adjustment of hydraulic cylinders in a continuous casting machine segment frame is implemented based on an HMI segment monitoring window. If the pressure difference between the hydraulic cylinder with the highest closing pressure and the hydraulic cylinder with the lowest closing pressure within a segment is greater than a set value of one, or if the difference between the closing pressure at the outlet of a segment and the closing pressure at the inlet of an adjacent segment is greater than a set value of two, it is considered that the hydraulic cylinder pressure is unbalanced and the segment roll gap needs to be adjusted online. The method specifically includes the following steps:

[0007] S1. Enter the roll gap adjustment screen, select the sector segment, observe the sector segment roll gap, and manually enter the position sensor deviation HMI correction offset as the current position sensor deviation HMI correction offset;

[0008] S2. Click Activation Button 1 to add the current position sensor deviation HMI correction offset to the current position sensor deviation HMI correction position as the modified position sensor deviation HMI correction position, and then assign the current position sensor deviation HMI correction offset to zero, and the sector roll gap remains unchanged;

[0009] S3. Click the second activation button to assign the modified position sensor deviation HMI correction position to the current position sensor deviation actual correction value, and the actual roll gap of the sector will change.

[0010] S4. If the hydraulic cylinder pressure of the sector segment is unbalanced, repeat steps S1 to S3.

[0011] If the input position sensor deviation HMI correction offset is a positive offset, the sector segment closes the set distance; if the input position sensor deviation HMI correction offset is a negative offset, the sector segment opens the set distance.

[0012] There are several sectors, each of which includes a hydraulic cylinder, a sector frame, a position sensor, a servo valve, a proportional valve, an upper cavity pressure sensor, and a lower cavity pressure sensor. The hydraulic cylinder includes an inlet hydraulic cylinder and an outlet hydraulic cylinder. Each hydraulic cylinder is provided with a position sensor for detecting the position of the inlet opening and outlet opening of the sector. The upper cavity pressure sensor is used to detect the inlet closing pressure and the outlet closing pressure of the sector, respectively. The lower cavity pressure sensor is used to detect the lifting pressure of the upper frame. The sector frame includes an upper frame and a lower frame. The upper frame is connected to the piston of the hydraulic cylinder, and the lower frame is connected to the base of the hydraulic cylinder.

[0013] The servo valve is used to control the oil inlet amount of the upper chamber of the inlet hydraulic cylinder and the outlet hydraulic cylinder. The piston movement of the inlet hydraulic cylinder and the outlet hydraulic cylinder is driven by adjusting the servo valve. The inlet opening and outlet opening of the sector segment are changed by adjusting the upper frame. The proportional valve is used to control the oil inlet amount of the lower chamber of the inlet hydraulic cylinder and the outlet hydraulic cylinder. The upper frame is lifted by adjusting the proportional valve.

[0014] The inlet hydraulic cylinder and the outlet hydraulic cylinder are respectively arranged on both sides of the sector frame. There are two inlet hydraulic cylinders and two outlet hydraulic cylinders. The upper cavity pressure sensor, the lower cavity pressure sensor, the servo valve and the proportional valve are arranged in the hydraulic station. There are four upper cavity pressure sensors, one lower cavity pressure sensor, four servo valves and one proportional valve.

[0015] The upper frame, the lower frame, the upper cavity of the hydraulic cylinder and the lower cavity of the hydraulic cylinder are arranged on the sector segment.

[0016] The setting value 1 is 30~100ton, and the setting value 2 is 30~100ton.

[0017] The set distance value is: -5mm~+5mm.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The HMI sector monitoring window is implemented. If the pressure difference between the hydraulic cylinder with the largest closing pressure and the hydraulic cylinder with the smallest closing pressure in the sector is greater than the set value one, or the difference between the outlet closing pressure of a sector and the inlet closing pressure of the adjacent sector is greater than the set value two, it is regarded as hydraulic cylinder pressure imbalance. Without stopping the machine, the sector roll gap is adjusted online, and the modified position sensor deviation HMI correction position is assigned to the current position sensor deviation actual correction value. The actual sector roll gap will change, and the position reference value of the four hydraulic cylinders of the sector can be adjusted online. This avoids the problem of sector frame hydraulic cylinder pressure imbalance caused by inaccurate position reference value of the sector position sensor or abnormal inlet and outlet opening of the sector, improves the reliability of online sector opening, and ensures product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a schematic front view of the sector structure of a continuous casting machine.

[0021] FIG2 is a second schematic front view of the continuous casting machine sector structure.

[0022] FIG3 is a schematic top view of the sector structure of the continuous casting machine.

[0023] Figure 4 is the first HMI monitoring screen for the sector roll gap adjustment.

[0024] Figure 5 is the second HMI monitoring screen for the sector roll gap adjustment.

[0025] Figure 6 is the third HMI monitoring screen for the sector roll gap adjustment.

[0026] Figure 7 is the fourth HMI monitoring screen for the sector roll gap adjustment.

[0027] Figure 8 is the fifth HMI monitoring screen for the sector roll gap adjustment.

[0028] Figure 9 is the sixth HMI monitoring screen for the sector roll gap adjustment.

[0029] Figure 10 is the seventh HMI monitoring screen for the sector roll gap adjustment.

[0030] FIG. 11 is a flowchart of the first embodiment of the screen modification correction deviation value.

[0031] FIG. 12 is a second flow chart of the embodiment of the screen modification correction deviation value.

[0032] FIG13 is a flowchart 3 of the embodiment of the screen modification correction deviation value.

[0033] FIG14 is a schematic diagram of the first sector segment calibration reference position according to an embodiment.

[0034] Figure 15 is a schematic diagram of the second sector calibration reference position of the embodiment

[0035] FIG16 is a schematic diagram of the third sector segment calibration reference position according to an embodiment.

[0036] FIG17 is a fourth schematic diagram of the calibration reference position of the sector segment according to the embodiment.

[0037] FIG18 is an HMI monitoring screen 1 of the sector roll gap adjustment embodiment.

[0038] FIG19 is a second HMI monitoring screen of the sector roll gap adjustment embodiment.

[0039] FIG. 20 is a third HMI monitoring screen of the sector roll gap adjustment embodiment.

[0040] FIG. 21 is a fourth HMI monitoring screen of the sector roll gap adjustment embodiment.

[0041] FIG22 is a schematic diagram of the set value of the fan segment opening degree given by the process.

[0042] FIG23 is a second schematic diagram of the set values ​​of the fan segment opening degree given by the process.

[0043] Figure 24 is a simplified diagram of the sector position calculation.

[0044] In the figure: 1-left side inlet position sensor 2-right side inlet position sensor 3-upper frame 4-left side inlet hydraulic cylinder upper chamber servo valve 5-right side inlet hydraulic cylinder upper chamber servo valve 6-lower chamber proportional valve 7-hydraulic cylinder upper chamber 8-hydraulic cylinder lower chamber 9-left side inlet pressure sensor 10-lifting frame pressure sensor 11-right side inlet pressure sensor 12-lower frame. DETAILED DESCRIPTION

[0045] The present invention will be described in detail below with reference to the accompanying drawings, but it should be noted that the implementation of the present invention is not limited to the following embodiments.

[0046] See Figures 1 to 3. The number of fan-shaped segments of a single-strand casting machine is fifteen, and the number of fan-shaped segments of a double-strand casting machine is thirteen. Each fan-shaped segment includes an inlet hydraulic cylinder, an outlet hydraulic cylinder, a fan-shaped segment frame, a position sensor, a servo valve, a proportional valve, an upper cavity pressure sensor, and a lower cavity pressure sensor. The inlet hydraulic cylinder and the outlet hydraulic cylinder are respectively arranged on both sides of the fan-shaped segment frame. The fan-shaped segment frame includes an upper frame and a lower frame. The lower frame is fixedly connected to the base of the inlet hydraulic cylinder and the outlet hydraulic cylinder and does not move. The upper frame is connected to the piston of the inlet hydraulic cylinder and the outlet hydraulic cylinder. There are two inlet hydraulic cylinders and two outlet hydraulic cylinders. The servo valve is used to control the oil inlet amount of the upper cavity of the inlet hydraulic cylinder and the outlet hydraulic cylinder. The piston movement of the inlet hydraulic cylinder and the outlet hydraulic cylinder is driven by adjusting the servo valve, that is, the upper frame is driven to move by adjusting the servo valve, and the inlet opening of the fan-shaped segment is changed by adjusting the upper frame. The inlet opening and outlet opening degrees, the number of servo valves is four, and position sensors are provided in the inlet hydraulic cylinder and the outlet hydraulic cylinder. The position sensor is used to detect the position of the inlet opening and outlet opening degrees of the sector segment; the upper cavity pressure sensor is used to detect the inlet closing pressure and outlet closing pressure of the sector segment respectively, and the upper cavity pressure sensor is arranged on the valve platform of the hydraulic station, and the number of upper cavity pressure sensors is four; the proportional valve is used to control the oil inlet amount of the lower cavity of the inlet hydraulic cylinder and the outlet hydraulic cylinder, and the upper frame is driven to lift by adjusting the proportional valve, and the number of proportional valves is one, the lower cavity pressure sensor is used to detect the lifting pressure of the upper frame, and the number of lower cavity pressure sensors is one, the upper cavity pressure sensor, the lower cavity pressure sensor, the servo valve and the proportional valve are arranged in the hydraulic station, and the upper frame, the lower frame, the upper cavity of the hydraulic cylinder, and the lower cavity of the inlet hydraulic cylinder and the outlet hydraulic cylinder are arranged on the sector.

[0047] See Figures 4 to 10 for an online adjustment method for the pressure balance of the hydraulic cylinders of the continuous casting machine segment frame. This method is based on the HMI segment pressure monitoring window. If the pressure difference between the hydraulic cylinder with the largest closing pressure and the hydraulic cylinder with the smallest closing pressure within the segment is greater than 50 tons, see Figure 6, or if the closing pressure of a segment is unbalanced with that of the adjacent segment, see Figure 8 and Figure 9. For example, if the difference between the closing pressure of the right outlet of the S8 segment and the closing pressure of the right inlet of the S9 segment is greater than 50 tons, it is considered that the hydraulic cylinder pressure is unbalanced and the segment roll gap needs to be adjusted online. The method specifically includes the following steps:

[0048] Step S1, enter the roll gap adjustment screen, see Figure 5, click one of the buttons S01 POS MODIFY---S15 POS MODIFY to enter the corresponding sector, see Figure 6, and observe the sector roll gap Position, see Figure 7, manually enter the position sensor deviation HMI correction offset as this position sensor deviation HMI correction offset, Sensor offset HMI wirte Pos is used to input the adjusted sector roll gap value, if you want the sector to open 1mm, then Sensor offset HMI wirte Pos (position sensor deviation HMI correction offset) = -1, if you want the sector to close 1mm, then Sensor offset HMI wirte Pos (position sensor deviation HMI correction offset) = +1;

[0049] Step S2: Click the activation button MODI START to add the current position sensor deviation HMI correction offset to the current position sensor deviation HMI correction position as the modified position sensor deviation HMI correction position, see formula ①, as shown below:

[0050] Senor offset HMI calcul pos.=

[0051] Senor offset HMI calcul pos.+Sensor offset HMI wirte Pos. ①

[0052] In formula ①, Senor offset HMI calcul pos. represents the position sensor deviation HMI correction position, and Sensor offset HMI wirte Pos. represents the position sensor deviation HMI correction offset.

[0053] Then set the HMI correction offset of the position sensor deviation to zero, see formula ②, as shown below:

[0054] Sensor offset HMI wirte Pos.=0; ②

[0055] In formula ②, Sensor offset HMI wirte Pos. represents the position sensor deviation HMI correction offset;

[0056] The sector roll gap position remains unchanged;

[0057] Step S3, click the activation button CONF START to assign the modified position sensor deviation HMI correction position to the current actual position sensor offset, see formula ③, as shown below:

[0058] Sensor offset actual reading.=Senor offset HMI calcul pos.; ③

[0059] In formula 3, Sensor offset actual reading. represents the actual correction value of the position sensor offset, and Senor offset HMI calcul pos. represents the HMI correction position of the position sensor offset.

[0060] The actual roll gap of the sector will change;

[0061] Step S4: If the hydraulic cylinder pressure of the sector is unbalanced, repeat steps S1 to S3.

[0062] The working process is described as follows:

[0063] See Figure 4 to Figure 10. In the figures, POS MODIFY represents the sector, Position represents the sector roll gap, Sensor offset HMI wirte Pos represents the position sensor deviation HMI calibration offset, Senor offset HMI calcul pos represents the position sensor deviation HMI calibration position, Sensor offset actual reading represents the position sensor deviation actual calibration value, and Last sensor offset calibration represents the actual position sensor offset when the sector was last calibrated.

[0064] The principle of adjusting the sector is as follows: the closing pressure of the sector S01 to the sector S06 should not be less than 40 tons; the closing force of the sector S11 to the sector S15 should not be greater than 30 tons; the closing force of the sector S07 to the sector S08 should not be less than 50 tons and not greater than 90 tons; the HMI correction offset of each position sensor deviation should be between -1 and +1.

[0065] The position reference value is the actual offset of the position sensor when the sector is finally calibrated. After the new sector is online, the upper frame of the sector needs to be pressed down with the maximum closing force. The value of the sector position sensor is the position reference value.

[0066] If the servo valve opening becomes larger, oil flows into the upper chambers of the inlet and outlet hydraulic cylinders, the upper frame is pressed down, the inlet and outlet openings of the sector are reduced, and the value detected by the upper chamber pressure sensor is the closing pressure. At this time, the sector is closed; if the servo valve opening becomes smaller, the proportional valve opening becomes larger, oil flows into the lower chambers of the inlet and outlet hydraulic cylinders, the upper frame is lifted, the inlet and outlet openings increase, and the value detected by the lower chamber pressure sensor is the lifting pressure. At this time, the sector is opened. The sector opening setting value (i.e., the target opening of the sector) is given according to the production process, see Figure 22, see Figure 23. During the production of the continuous casting machine, the operator found in the monitoring window of the sector pressure that the closing pressure of the hydraulic cylinder at a certain position of a certain sector was unbalanced, and timely online adjustment was made to ensure that the pressure difference between adjacent hydraulic cylinders did not exceed 50 tons to avoid pressure imbalance.

[0067] The following examples are implemented under the premise of the technical solution of the present invention, and provide detailed implementation methods and specific operating processes, but the scope of protection of the present invention is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.

[0068] [Example 1]

[0069] The method for realizing online pressure balance adjustment of hydraulic cylinders of a continuous casting machine segment frame comprises the following steps:

[0070] Step S1: To close the sector by 1 mm, enter 1 in the Sensor offset HMI wirte Pos. box. See Figure 18: Sensor offset HMI wirte Pos. = 1.

[0071] Step S2: Click the activation button MODI START to transfer the modified value Senor offset HMI calcul pos. + Sensor offset HMI wirte pos. to Senor offset HMI calcul pos. (see FIG19 ): Senor offset HMI calcul pos. = Senor offset HMI calcul pos. + Sensor offset HMI wirte pos. = 434.0 + 1 = 435.0.

[0072] Step S3. Click the CONF START activation button to assign the Senor offset HMI calcul pos. value to the Sensor offset actual reading. At the same time, the program determines the actual position. As shown in Figure 18, 231.6 is the actual position, that is, the actual opening of the fan segment. The target position is the position set according to the process requirements, that is, the target opening of the fan segment. The target position is 231.6. If the actual position of the fan segment is 232.6, it needs to be closed.

[0073] The working process is described as follows:

[0074] See Figure 21. When the fan segment is in the shutdown maintenance state, the fan segment calibration reference position is 387.2mm, see Figure 14; when the fan segment is in the casting state, the fan segment target position is 242.5mm, and the actual open position is 242.5mm, see Figure 15; when casting, the pressure of the hydraulic cylinder is too small, and the position of the hydraulic cylinder of the fan segment needs to be adjusted smaller. Since the target position is not divided into left and right sides, the target position is determined by the production process and there is no condition for changing it, so it is necessary to adjust a hydraulic cylinder separately. To change the position, it is necessary to change the sector calibration reference value online. For example, if it needs to be closed by 1mm, the original reference value of 387.2mm needs to be increased by 1mm to 388.2mm, as shown in Figure 16; the actual value changes from the original 242.5mm to 243.5mm, but the target value is still 242.5mm. The position of the hydraulic cylinder needs to be closed from 243.5mm to 242.5mm, and the pressure of the hydraulic cylinder will also increase accordingly, thereby achieving the purpose of adjusting the hydraulic cylinder pressure, as shown in Figure 17.

[0075] [Example 2]

[0076] In this embodiment, a method for achieving online pressure balance adjustment of the hydraulic cylinder of the continuous casting machine segment frame is the same as that in Example 1, and a process of modifying the segment position by modifying the segment position reference value is added thereto.

[0077] See Figures 11 to 13. By modifying the correction deviation value of the sector inlet or outlet, the position of the sector inlet and outlet (that is, the sector opening degree) can be modified. See Figure 24. The formula is as follows:

[0078] A=(X1+X2)*P1 / X2-X1*P2 / X2; ④

[0079] B=(X2+X3)*P2 / X2-X3*P1 / X2; ⑤

[0080] Among them, in formula ④ and formula ⑤, A: right side inlet position of the sector; B: right side outlet position of the sector; C: right side inlet position sensor reading of the sector; D: right side outlet position sensor reading of the sector; E: right side inlet position correction deviation value of the sector; F: right side outlet position correction deviation value of the sector; X1: distance from the right side inlet of the sector to the right side inlet hydraulic cylinder of the sector; X2: distance from the right side inlet hydraulic cylinder of the sector to the right side outlet hydraulic cylinder of the sector; X3: distance from the right side outlet hydraulic cylinder of the sector to the right side outlet of the sector; P1: process variable 1; P2: process variable 2; P1=C+E; P2=D+F.

[0081] The present invention is based on an HMI sector monitoring window and can adjust the sector roll gap online without stopping the machine. The modified HMI correction position of the position sensor deviation is assigned to the current actual correction value of the position sensor deviation. The actual sector roll gap will change, and the position reference values ​​of the four hydraulic cylinders of the sector can be adjusted online. This avoids the problem of pressure imbalance in the hydraulic cylinders of the sector frame caused by inaccurate position reference values ​​of the sector position sensors or abnormal inlet and outlet openings of the sector. This improves the reliability of online sector opening and ensures product quality.

Claims

1. A method for realizing online adjustment of pressure balance of hydraulic cylinder of segment frame of continuous casting machine, based on HMI segment monitoring window, characterized in that: If the pressure difference between the hydraulic cylinder with the largest closing pressure and the hydraulic cylinder with the smallest closing pressure in the sector is greater than the set value one, or the difference between the outlet closing pressure of a sector and the inlet closing pressure of the adjacent sector is greater than the set value two, it is considered that the hydraulic cylinder pressure is unbalanced and the sector roll gap needs to be adjusted online, which specifically includes the following steps: S1. Enter the roll gap adjustment screen, select the sector segment, observe the sector segment roll gap, and manually input the position sensor deviation HMI correction offset as the current position sensor deviation HMI correction offset; S2. Click the activation button 1 to add the current position sensor deviation HMI correction offset to the current position sensor deviation HMI correction position as the modified position sensor deviation HMI correction position, and then assign the current position sensor deviation HMI correction offset to zero, and the fan-shaped segment roll gap remains unchanged; S3. Click the activation button 2 to assign the modified position sensor deviation HMI correction position to the current position sensor deviation actual correction value, and the actual roll gap of the fan segment will change; S4. If the hydraulic cylinder pressure of the sector segment is unbalanced, repeat steps S1 to S3.

2. A method for realizing online pressure balance adjustment of hydraulic cylinders of a continuous casting machine segment frame according to claim 1, characterized in that: The input position sensor deviation HMI correction offset is a positive offset, and the fan segment closes the set distance; the input position sensor deviation HMI correction offset is a negative offset, and the fan segment opens the set distance.

3. The method for realizing online pressure balance adjustment of hydraulic cylinders of a continuous casting machine segment frame according to claim 1 is characterized in that: The number of the fan-shaped segments is several, and each fan-shaped segment includes a hydraulic cylinder, a fan-shaped segment frame, a position sensor, a servo valve, a proportional valve, an upper cavity pressure sensor, and a lower cavity pressure sensor. The hydraulic cylinder includes an inlet hydraulic cylinder and an outlet hydraulic cylinder. Position sensors are arranged in the hydraulic cylinders. The position sensors are used to detect the positions of the inlet opening degree and the outlet opening degree of the fan-shaped segment. The upper cavity pressure sensor is used to detect the inlet closing pressure of the fan-shaped segment and the outlet closing pressure of the fan-shaped segment respectively. The lower cavity pressure sensor is used to detect the lifting pressure of the upper frame. The fan-shaped segment frame includes an upper frame and a lower frame. The upper frame is connected to the piston of the hydraulic cylinder, and the lower frame is connected to the base of the hydraulic cylinder. The servo valve is used to control the oil inlet amount of the upper chamber of the inlet hydraulic cylinder and the outlet hydraulic cylinder. The piston movement of the inlet hydraulic cylinder and the outlet hydraulic cylinder is driven by adjusting the servo valve. The inlet opening and outlet opening of the fan-shaped segment are changed by adjusting the upper frame. The proportional valve is used to control the oil inlet amount of the lower chamber of the inlet hydraulic cylinder and the outlet hydraulic cylinder. The upper frame is lifted by adjusting the proportional valve.

4. A method for realizing online pressure balance adjustment of hydraulic cylinders of a continuous casting machine segment frame according to claim 3, characterized in that: The inlet hydraulic cylinder and the outlet hydraulic cylinder are respectively arranged on both sides of the sector frame, and the number of the inlet hydraulic cylinder and the outlet hydraulic cylinder are two. The upper chamber pressure sensor, the lower chamber pressure sensor, the servo valve, and the proportional valve are arranged in the hydraulic station. The number of the upper chamber pressure sensors is four, the number of the lower chamber pressure sensor is one, the number of the servo valves is four, and the number of the proportional valve is one.

5. The method for realizing online pressure balance adjustment of hydraulic cylinders of a continuous casting machine segment frame according to claim 3 is characterized in that: The upper frame, the lower frame, the upper chamber of the hydraulic cylinder and the lower chamber of the hydraulic cylinder are arranged on the fan-shaped segment.

6. A method for realizing online pressure balance adjustment of hydraulic cylinders of a continuous casting machine segment frame according to claim 1, characterized in that: The setting value 1 is: 30~100ton, and the setting value 2 is: 30~100ton.

7. A method for realizing online pressure balance adjustment of hydraulic cylinders of a continuous casting machine segment frame according to claim 1, characterized in that: The setting distance is: -5mm~+5mm.

Images