Seamless steel tube production detection system and production method based on bent shell screw drill

Abstract

The invention relates to the technical field of steel pipe safety production, in particular to a seamless steel pipe production detection system and method based on a bent shell screw drill, and the system comprises a production process detection module, a steel pipe quality detection module and a quality detection platform, the production process detection module is used for processing to obtain a seamless steel tube production process abnormal evaluation value; the steel pipe quality detection module is used for processing to obtain a seamless steel pipe surface quality evaluation value and a seamless steel pipe internal quality evaluation value; according to the seamless steel pipe production detection system based on the bent shell screw drill and the production method, the abnormities in the production process of the seamless steel pipe, the number of early warning times and the surface quality and the internal quality of the seamless steel pipe are comprehensively analyzed; quality control can be carried out more effectively, production parameters are adjusted in time, defects are reduced, and therefore the product quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of safe production of steel pipes, and in particular to a production detection system and a production method for seamless steel pipes for bent shell screw drill tools. Background Art

[0002] Seamless steel pipe is an important part of screw drill, especially the bent shell part. The quality of seamless steel pipe directly affects the performance and life of the drill. Seamless steel pipe needs to have high strength, high toughness, good corrosion resistance and wear resistance to adapt to the complex downhole environment. Therefore, the quality requirements for seamless steel pipe are much higher than those for general welded pipe. Due to some factors in the production process, some unqualified products are inevitably produced, so a strict inspection system is needed to ensure product quality.

[0003] For example, the invention patent with announcement number: CN114034588B is a safety detection device for steel pipe production, including a bottom plate, a driving end side plate and a driven end side plate are respectively arranged on both sides of the bottom plate, and a plurality of support legs are fixedly installed on the upper surface of the bottom plate and between the driving end side plate and the driven end side plate, and a device housing is fixedly installed on the top of the support legs, and a detection wheel frame is arranged on the inner side of the device housing. The safety detection device for steel pipe production is provided with structures such as a driving motor, a detection wheel frame, a rotating wheel, a pushing column, a follower column, a feeding port and a discharging port. During the entire detection process, the automatic feeding, automatic clamping and automatic detection of the steel pipe can be completed by the counterclockwise rotation of the driving motor, and the automatic unloading can be completed by the clockwise rotation of the driving motor. In addition, multiple steel pipes can be detected at the same time, which improves the speed of detecting steel pipes.

[0004] For example, the invention patent with publication number: CN118583615A is a safety detection device for steel pipe production, including a workbench with multiple supporting legs fixed at the bottom, a plurality of pairs of bottom columns fixed at intervals on the workbench, a support seat fixed on the top of the bottom column, an I-shaped steel beam fixed between two adjacent support seats, a plurality of arc seats fixed at intervals on the I-shaped steel beam, a workpiece is placed on the arc seat, a first mounting seat is arranged on the workbench, a plurality of plugs are installed at intervals on one side of the first mounting seat, a closing mechanism is arranged between the first mounting seat and the workbench, a booster pump is arranged at the bottom of the workbench, and a quick-connect connector is arranged on the booster pump.

[0005] However, in the process of implementing the technical solution of the invention in the embodiments of the present application, it was found that the above technology has at least the following technical problems: although the traditional non-destructive testing methods (such as ultrasonic testing and magnetic particle testing) can find some defects, the detection of steel pipes is not comprehensive, there may be missed detection or false detection, and it is often easily affected by the equipment. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a production and detection system and a production method for seamless steel pipes for bent shell screw drill tools, which can effectively solve the problems involved in the above-mentioned background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: The first aspect of the present invention provides a seamless steel pipe production and inspection system for bent shell screw drill tools, including: a production process inspection module, a steel pipe quality inspection module and a quality inspection platform.

[0008] The production process detection module is used to obtain the steel pipe production process data, process it to obtain the abnormal evaluation value of the seamless steel pipe production process, and issue an early warning to the production process based on the abnormal evaluation value of the seamless steel pipe production process, and record the number of early warnings.

[0009] The steel pipe quality inspection module is used to collect basic data of steel pipes and process them to obtain the surface quality assessment value and internal quality assessment value of seamless steel pipes.

[0010] The quality inspection platform is used to obtain the comprehensive quality evaluation index of seamless steel pipes based on the abnormal evaluation value of the seamless steel pipe production process, the number of early warnings, the surface quality evaluation value of seamless steel pipes and the internal quality evaluation value of seamless steel pipes through comprehensive analysis, and screen the steel pipes based on the comprehensive quality evaluation index of seamless steel pipes.

[0011] As a further feature of the system, the steel pipe production process data includes: quenching temperature, quenching time, tempering temperature, tempering time and equipment status data.

[0012] The equipment status data includes fan speed, fan vibration frequency, furnace pressure and control system response time.

[0013] As a further feature of the system, the processing obtains an abnormal evaluation value of the seamless steel pipe production process. The specific process is: extracting the rated speed, rated vibration frequency, standard pressure in the furnace, critical response time, allowable deviation speed, allowable deviation vibration frequency and allowable deviation pressure from the seamless steel pipe database.

[0014] According to the equipment status data, comprehensive processing is performed to obtain the abnormal equipment status interference characteristic value, which is used to quantitatively evaluate the degree of interference of the abnormal equipment status on the steel pipe production process, and provide a basis for evaluating the abnormality of the seamless steel pipe production process.

[0015] The reference standard quenching temperature, reference standard quenching time, reference standard tempering temperature, reference standard tempering time, allowable deviation quenching temperature, allowable deviation quenching time, allowable deviation tempering temperature and allowable deviation tempering time are extracted from the seamless steel pipe database.

[0016] According to the steel pipe production process data and the abnormal interference characteristic value of the equipment status, a comprehensive analysis is performed to obtain the abnormal evaluation value of the seamless steel pipe production process. The abnormal evaluation value of the seamless steel pipe production process is used to quantitatively evaluate the abnormality degree of the seamless steel pipe in the production process, and provide a basis for evaluating the quality of the seamless steel pipe.

[0017] As a further feature of the system, the production process is warned based on the abnormal evaluation value of the seamless steel pipe production process, and the number of warnings is recorded. The specific process is: extracting the abnormal evaluation threshold of the seamless steel pipe production process from the seamless steel pipe database, comparing the abnormal evaluation value of the seamless steel pipe production process with the abnormal evaluation threshold of the seamless steel pipe production process; if the abnormal evaluation value of the seamless steel pipe production process is higher than or equal to the abnormal evaluation threshold of the seamless steel pipe production process, then the seamless steel pipe production process is warned and the number of warnings is recorded; if the abnormal evaluation value of the seamless steel pipe production process is lower than the abnormal evaluation threshold of the seamless steel pipe production process, then the seamless steel pipe production process is continuously monitored.

[0018] As a further feature of the system, the basic data of the steel pipe includes the surface data of the steel pipe and the internal data of the steel pipe.

[0019] The steel pipe surface data includes steel pipe size, steel pipe wall thickness, steel pipe straightness, steel pipe ovality and steel pipe surface roughness.

[0020] The internal data of the steel pipe include the number of non-metallic inclusions inside the steel pipe, the density of voids inside the steel pipe, the number of voids and the diameter of voids.

[0021] As a further feature of the system, the processing obtains the surface quality evaluation value and the internal quality evaluation value of the seamless steel pipe, specifically including: extracting the reference standard steel pipe size, reference standard steel pipe wall thickness, reference standard steel pipe straightness, reference standard steel pipe ovality, reference standard steel pipe surface roughness, allowable deviation steel pipe size, allowable deviation steel pipe wall thickness, allowable deviation steel pipe straightness, allowable deviation steel pipe ovality and allowable deviation steel pipe surface roughness from the seamless steel pipe database.

[0022] According to the steel pipe surface data, comprehensive processing is performed to obtain the surface quality evaluation value of the seamless steel pipe, which is used to quantitatively evaluate the surface quality of the seamless steel pipe and provide a basis for screening the steel pipe.

[0023] As a further feature of the system, the processing obtains the surface quality evaluation value and the internal quality evaluation value of the seamless steel pipe, and also includes: extracting the critical number of non-metallic inclusions, the critical number of voids, the critical void density and the critical void diameter from the seamless steel pipe database.

[0024] According to the internal data of the steel pipe, comprehensive processing is performed to obtain the internal quality assessment value of the seamless steel pipe, which is used to quantitatively evaluate the internal quality of the seamless steel pipe and provide a basis for screening steel pipes.

[0025] As a further feature of the system, the comprehensive analysis obtains a comprehensive evaluation index for the quality of seamless steel pipes. The specific analysis process is: based on the abnormal evaluation value of the seamless steel pipe production process, the number of warnings, the surface quality evaluation value of the seamless steel pipe and the internal quality evaluation value of the seamless steel pipe, a comprehensive analysis is performed to obtain a comprehensive evaluation index for the quality of seamless steel pipes. The comprehensive evaluation index for the quality of seamless steel pipes is used to comprehensively and quantitatively evaluate the quality of seamless steel pipes and provide a basis for screening steel pipes.

[0026] As a further feature of the system, the steel pipes are screened according to the comprehensive quality evaluation index of seamless steel pipes. The specific screening process is: extracting the threshold of the comprehensive quality evaluation index of seamless steel pipes from the seamless steel pipe database, comparing the comprehensive quality evaluation index of seamless steel pipes with the threshold of the comprehensive quality evaluation index of seamless steel pipes. If the comprehensive quality evaluation index of seamless steel pipes is higher than or equal to the threshold of the comprehensive quality evaluation index of seamless steel pipes, the comprehensive quality evaluation of seamless steel pipes is evaluated as qualified steel pipes. If the comprehensive quality evaluation index of seamless steel pipes is lower than the threshold of the comprehensive quality evaluation index of seamless steel pipes, the comprehensive quality evaluation of seamless steel pipes is evaluated as unqualified steel pipes.

[0027] The second aspect of the present invention provides a method for producing seamless steel pipes for bent shell screw drilling tools, including: S1. raw material composition optimization; S2. heating process optimization; S3. perforation deformation process control; S4. pipe rolling process control; S5. heat treatment optimization; S6. cooling bed controlled cooling; S7. cold processing process; S8. production inspection process.

[0028] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects: (1) The present invention provides a production detection system and a production method for seamless steel pipes for bent shell screw drills, which can conduct a comprehensive analysis of the abnormalities in the production process of seamless steel pipes, the number of warnings, and the surface quality and internal quality of seamless steel pipes, so as to more effectively control quality, adjust production parameters in time, reduce the occurrence of defects, and thus improve product quality.

[0029] (2) The present invention provides comprehensive quality and efficiency monitoring for the steel pipe production process by comprehensively analyzing the quenching temperature, quenching time, tempering temperature and tempering time and equipment status abnormalities. This comprehensive monitoring helps to identify and solve problems in the production process in a timely manner, thereby ensuring the reliability and performance of steel pipe products.

[0030] (3) The present invention helps ensure that steel pipe products meet specific industrial standards and customer requirements by comprehensively considering steel pipe size, steel pipe wall thickness, steel pipe straightness, steel pipe ovality and steel pipe surface roughness. At the same time, understanding the relationship between these parameters can help manufacturers optimize processing technology to reduce surface defects, thereby helping to improve production efficiency and enhance the market competitiveness of products, which is conducive to ensuring the application performance and long-term reliability of steel pipes in various fields.

[0031] (4) The present invention can more comprehensively evaluate the operating status of the equipment and timely discover and solve potential problems of the equipment by comprehensively analyzing the fan speed, vibration frequency, furnace pressure and control system response time, thereby ensuring the reliability of the equipment and the continuity of the production process. At the same time, it can also help to formulate more effective preventive maintenance plans and reduce downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0033] Figure 1 It is a schematic diagram of system module connection of the present invention.

[0034] Figure 2 It is a schematic diagram of the method flow of the present invention.

[0035] Figure 3 This is a schematic diagram of a bent shell screw drill tool involved in an embodiment of the present invention, including: 1. a cross shaft, 2. a power section, 3. an adjustable bending support, and 4. a bearing group. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] Reference Figure 1 As shown, the first aspect of the present invention provides a production and detection system for seamless steel pipes for bent shell screw drill tools, comprising: a production process detection module, a steel pipe quality detection module and a quality detection platform.

[0038] The production process detection module is used to obtain the steel pipe production process data, process it to obtain the abnormal evaluation value of the seamless steel pipe production process, and issue an early warning to the production process based on the abnormal evaluation value of the seamless steel pipe production process, and record the number of early warnings.

[0039] Specifically, the steel pipe production process data includes: quenching temperature, quenching time, tempering temperature, tempering time and equipment status data.

[0040] It needs to be explained that thermocouples are installed on the surface of the steel pipe for real-time temperature measurement. Thermocouples convert temperature signals into electrical signals, which are processed by the data acquisition system. Thermocouples are connected by a data acquisition device to collect quenching temperature and tempering temperature data in real time, and the temperature changes over time are recorded by software. A timer or timing system is integrated in the data acquisition system to record the start and end time of quenching and tempering, thereby calculating the quenching time and tempering time.

[0041] The equipment status data includes fan speed, fan vibration frequency, furnace pressure and control system response time.

[0042] It should be explained that the control system response time refers to the response time of the control system to changes in the parameters of the equipment in the furnace.

[0043] It should be explained that the fan speed can be detected using a Hall effect sensor, a photoelectric sensor, or a magnetoelectric sensor. The fan vibration frequency can be monitored using an accelerometer or a velocity sensor. A pressure sensor can be installed in the furnace to monitor the pressure changes in the furnace in real time. The time point when the control command is issued and executed can be recorded by setting a timestamp recording function in the control system, and the time difference between the two can be calculated as the response time.

[0044] Furthermore, the abnormal evaluation value of the seamless steel pipe production process is processed, and the specific process is: the rated speed, rated vibration frequency, standard pressure in the furnace, critical response time, allowable deviation speed, allowable deviation vibration frequency and allowable deviation pressure are extracted from the seamless steel pipe database.

[0045] According to the equipment status data, comprehensive processing is performed to obtain the abnormal equipment status interference characteristic value, which is used to quantitatively evaluate the degree of interference of the abnormal equipment status on the steel pipe production process, and provide a basis for evaluating the abnormality of the seamless steel pipe production process.

[0046] In a specific embodiment, the numerical expression of the abnormal interference characteristic value of the device state is: ; In the formula, represents the abnormal interference characteristic value of the equipment state, e represents the natural constant, t represents the time variable, , Indicates the current time point. represents the monitoring start time point, Z(t) represents the fan speed at time t, L(t) represents the fan vibration frequency at time t, Y(t) represents the pressure in the furnace at time t, X(t) represents the response time of the control system at time t, Indicates the rated speed, Indicates the rated vibration frequency, Indicates the standard pressure in the furnace. represents the critical response time, Indicates the allowable deviation speed, Indicates the allowable deviation vibration frequency, Indicates the allowable deviation pressure, Indicates the device status abnormality impact factor corresponding to the preset fan speed. Indicates the abnormal impact factor of the device status corresponding to the preset fan vibration frequency. Indicates the abnormal equipment status impact factor corresponding to the preset furnace pressure, Indicates the device status abnormality impact factor corresponding to the preset control system response time.

[0047] It needs to be explained that when the control system response time is longer, the absolute difference between the fan speed, fan vibration frequency, furnace pressure and the rated speed, rated vibration frequency, and standard furnace pressure is greater, the corresponding equipment state abnormal interference characteristic value is greater, indicating that the abnormal equipment state has a greater degree of interference with the steel pipe production process.

[0048] It should be explained that in this embodiment Indicates the device status abnormality impact factor corresponding to the preset fan speed. Indicates the abnormal impact factor of the device status corresponding to the preset fan vibration frequency. Indicates the abnormal equipment status impact factor corresponding to the preset furnace pressure, It represents the equipment status abnormality influencing factors corresponding to the preset control system response time. The values ​​of these influencing factors respectively represent the degree of influence of the fan speed, fan vibration frequency, furnace pressure and control system response time unit values ​​on the equipment status abnormality. When used, these influencing factors can be directly obtained from the seamless steel pipe database. The values ​​of these influencing factors are preset in the seamless steel pipe database. For example, the fan speed, fan vibration frequency, furnace pressure and control system response time form a mapping set with the preset influencing factors in the seamless steel pipe database respectively. The real-time fan speed, fan vibration frequency, furnace pressure and control system response time are input into the mapping set to obtain the corresponding equipment status abnormality influencing factors. These mapping relationships can be one-to-one or many-to-one. The value range of all influencing factors is between 0 and 1, indicating the degree from no influence to maximum influence.

[0049] It should be explained that in this embodiment, when the fan speed is stable, the vibration frequency should show a certain regularity, which is usually proportional to the speed. If the fan speed remains unchanged but the vibration frequency changes, it may indicate damage to the fan blades, bearing wear or other mechanical problems. An increase in the fan speed usually leads to a corresponding increase in the pressure in the furnace, and vice versa. If the fan speed increases and the pressure in the furnace remains unchanged or decreases, it may indicate a leak or blockage problem in the furnace. The response time of the control system should be fast and stable, and the fan speed can be adjusted in time to meet the process requirements. If the response time of the control system becomes longer, the fan speed may not be adjusted in time, affecting the pressure in the furnace and other process parameters. The control system should be able to respond quickly to changes in the vibration frequency and maintain the stability of the equipment by adjusting the speed or other parameters. If the response time of the control system is prolonged, it may not be adjusted in time to reduce vibration, resulting in equipment damage.

[0050] It should be explained that this embodiment can more comprehensively evaluate the operating status of the equipment and promptly discover and solve potential problems by comprehensively analyzing parameters such as fan speed, vibration frequency, furnace pressure and control system response time, thereby ensuring the reliability of the equipment and the continuity of the production process. By monitoring these parameters, abnormal trends can be discovered before the equipment fails significantly, so that maintenance measures can be taken in advance. Understanding equipment status parameters can help develop more effective preventive maintenance plans, reduce downtime and maintenance costs. Ensuring that the control system responds quickly can improve the efficiency of the production line and avoid a decrease in production capacity due to slow equipment response. Monitoring the pressure in the furnace can prevent equipment damage or safety accidents caused by excessive or low pressure.

[0051] The reference standard quenching temperature, reference standard quenching time, reference standard tempering temperature, reference standard tempering time, allowable deviation quenching temperature, allowable deviation quenching time, allowable deviation tempering temperature and allowable deviation tempering time are extracted from the seamless steel pipe database.

[0052] According to the steel pipe production process data and the abnormal interference characteristic value of the equipment status, a comprehensive analysis is performed to obtain the abnormal evaluation value of the seamless steel pipe production process. The abnormal evaluation value of the seamless steel pipe production process is used to quantitatively evaluate the abnormality degree of the seamless steel pipe in the production process, and provide a basis for evaluating the quality of the seamless steel pipe.

[0053] In a specific embodiment, the numerical expression of the abnormal evaluation value of the seamless steel pipe production process is: ; In the formula, represents the abnormal evaluation value of the seamless steel pipe production process, e represents the natural constant, represents the quenching temperature at time t, represents the tempering temperature at time t, t represents the time variable, , Indicates the current time point. Indicates the monitoring start time point, represents the quenching time, Indicates the tempering time, Indicates the abnormal interference characteristic value of the device status. represents the reference standard quenching temperature at time t, Indicates reference to standard quenching time, represents the reference standard tempering temperature at time t, Indicates reference to standard tempering time, Indicates the allowable deviation of quenching temperature, T represents the allowable deviation quenching time, Indicates the allowable deviation tempering temperature, HT represents the tolerance tempering time. Indicates the abnormal correction factor of the seamless steel pipe production process corresponding to the preset quenching temperature. Indicates the abnormal correction factor of the seamless steel pipe production process corresponding to the preset tempering temperature. Indicates the abnormal correction factor of the seamless steel pipe production process corresponding to the preset quenching time, Indicates the abnormal correction factor of the seamless steel pipe production process corresponding to the preset tempering time, It represents the abnormal correction factor of the seamless steel pipe production process corresponding to the preset abnormal interference characteristic value of the equipment status.

[0054] It needs to be explained that the greater the absolute difference between the quenching temperature, tempering temperature, quenching time, tempering time and the reference standard quenching temperature, tempering temperature, quenching time and tempering time, and the greater the abnormal interference characteristic value of the equipment status, the greater the corresponding seamless steel pipe production process abnormality assessment value, indicating that the degree of abnormality of the seamless steel pipe in the production process is greater.

[0055] It should be explained that in this embodiment Indicates the abnormal correction factor of the seamless steel pipe production process corresponding to the preset quenching temperature. Indicates the abnormal correction factor of the seamless steel pipe production process corresponding to the preset tempering temperature. Indicates the abnormal correction factor of the seamless steel pipe production process corresponding to the preset quenching time, Indicates the abnormal correction factor of the seamless steel pipe production process corresponding to the preset tempering time, It represents the abnormal correction factor of the seamless steel pipe production process corresponding to the preset abnormal interference characteristic value of the equipment state. The values ​​of these correction factors respectively represent the degree of influence of the unit values ​​of the quenching temperature, tempering temperature, quenching time, tempering time and abnormal interference characteristic value of the equipment state on the abnormality of the seamless steel pipe production process. When used, these correction factors can be directly obtained from the seamless steel pipe database. The values ​​of these correction factors are preset in the seamless steel pipe database. For example, the quenching temperature, tempering temperature, quenching time, tempering time and abnormal interference characteristic value of the equipment state form a mapping set with the correction factors preset in the seamless steel pipe database. The real-time quenching temperature, tempering temperature, quenching time, tempering time and abnormal interference characteristic value of the equipment state are input into the mapping set to obtain the corresponding abnormal correction factor of the seamless steel pipe production process. These mapping relationships can be one-to-one or many-to-one. The value range of all correction factors is between 0 and 1, indicating the degree from no influence to maximum influence.

[0056] It should be explained that the quenching time should be shortened at high temperatures to avoid overheating and grain growth. The higher the tempering temperature, the longer it usually takes to achieve stable structure and properties. The fan speed affects the cooling rate and must be matched with the quenching temperature to ensure the appropriate cooling rate. Fan vibration frequencies far above the critical value may require the control system to have a faster response time to stabilize the fan speed. The pressure in the furnace affects the cooling capacity and protection effect of the atmosphere and must be adjusted according to the temperature and time of quenching and tempering.

[0057] It needs to be explained that when the equipment is in good condition, the temperature and time of quenching and tempering should be accurately controlled within the set range. Abnormal equipment status (such as damaged heating elements, fan failure, etc.) may cause the quenching and tempering process parameters to deviate from the set values. Quenching temperature and quenching time are interdependent and need to be optimized according to material properties and required performance. Quenching temperature that is too higher than the standard value or time that is too long than the standard value may cause the steel pipe to overheat or deform, while temperature that is too lower than the standard value or time that is too short than the standard value may cause insufficient hardening. The tempering process is designed to reduce quenching stress and improve the toughness and stability of the steel pipe. The tempering temperature and time need to be matched to achieve the expected performance. Improper tempering temperature and time may result in substandard performance of the steel pipe, such as insufficient hardness or excessive softening.

[0058] It should be explained that this embodiment provides comprehensive quality and efficiency monitoring for the steel pipe production process through comprehensive analysis of the quenching temperature, quenching time, tempering temperature and tempering time and the equipment status abnormality evaluation value. This comprehensive monitoring helps to identify and solve problems in the production process in a timely manner, thereby ensuring the reliability and performance of steel pipe products. This embodiment can ensure that the entire heat treatment process is under control and reduce operational errors by real-time monitoring of quenching and tempering process parameters combined with equipment status evaluation. By analyzing these parameters, process deviations can also be discovered in a timely manner, so that measures can be taken to adjust and ensure the quality of the steel pipe.

[0059] Furthermore, based on the abnormal evaluation value of the seamless steel pipe production process, the production process is warned, and the number of warnings is recorded. The specific process is: the abnormal evaluation threshold of the seamless steel pipe production process is extracted from the seamless steel pipe database, and the abnormal evaluation value of the seamless steel pipe production process is compared with the abnormal evaluation threshold of the seamless steel pipe production process. If the abnormal evaluation value of the seamless steel pipe production process is higher than or equal to the abnormal evaluation threshold of the seamless steel pipe production process, the seamless steel pipe production process is warned, and the number of warnings is recorded. If the abnormal evaluation value of the seamless steel pipe production process is lower than the abnormal evaluation threshold of the seamless steel pipe production process, the seamless steel pipe production process is continuously monitored.

[0060] The steel pipe quality inspection module is used to collect basic data of steel pipes and process them to obtain the surface quality assessment value and internal quality assessment value of seamless steel pipes.

[0061] Specifically, the basic data of the steel pipe includes the surface data of the steel pipe and the internal data of the steel pipe.

[0062] The steel pipe surface data includes steel pipe size, steel pipe wall thickness, steel pipe straightness, steel pipe ovality and steel pipe surface roughness.

[0063] It should be explained that the steel pipe size in this embodiment refers to the inner diameter of the steel pipe, and the steel pipe straightness refers to the degree of straight deviation of the steel pipe in the length direction. Ideally, the steel pipe should be completely straight, but in the actual production process, due to various reasons (such as rolling, uneven cooling, stress release, etc.), the steel pipe may be bent or wavy. The ovality of the steel pipe refers to half of the difference between the maximum and minimum diameters on the cross section of the steel pipe, which reflects the degree of deviation of the circular cross section of the steel pipe. Ideally, the cross section of the steel pipe should be a perfect circle, but due to various factors in the manufacturing process, the cross section may appear elliptical or other irregular shapes. Excessive ovality and standard deviation may affect the load-bearing capacity of the steel pipe, fluid transmission efficiency, and coordination with other components. The calculation formula for the ovality of the steel pipe is: ovality = (maximum diameter-minimum diameter) / 2. The surface roughness of the steel pipe refers to the degree of irregularity of the microscopic geometry of the steel pipe surface. Specifically refers to the average surface roughness of the steel pipe, that is, the absolute average value on the contour surface within a certain sampling length.

[0064] It should be explained that the inner diameter and wall thickness of steel pipes can be directly measured using tools such as calipers, micrometers, and wall thickness gauges. Specialized straightness measuring instruments, such as optical straightness gauges and mechanical straightness gauges, can be used to detect the static straightness of steel pipes. Professional ovality measuring instruments can be used to accurately measure the ovality. Specialized surface roughness measuring instruments, such as mechanical or electronic roughness gauges, can be used to measure the surface roughness of steel pipes.

[0065] The internal data of the steel pipe include the number of non-metallic inclusions inside the steel pipe, the density of voids inside the steel pipe, the number of voids and the diameter of voids.

[0066] It needs to be explained that the non-metallic inclusions inside the steel pipe include sulfides, oxides and silicates.

[0067] It should be explained that void density refers to the void volume divided by the volume of the steel pipe.

[0068] It should be explained that the image analysis software can be used to process the image scanned by the scanning electron microscope to automatically count and measure the inclusions. The three-dimensional image of the cavities inside the steel pipe provided by the CT scan can be used to calculate the cavity density and the diameter of each cavity.

[0069] Furthermore, the surface quality evaluation value and the internal quality evaluation value of the seamless steel pipe are processed, specifically including: extracting the reference standard steel pipe size, reference standard steel pipe wall thickness, reference standard steel pipe straightness, reference standard steel pipe ovality, reference standard steel pipe surface roughness, allowable deviation steel pipe size, allowable deviation steel pipe wall thickness, allowable deviation steel pipe straightness, allowable deviation steel pipe ovality and allowable deviation steel pipe surface roughness from the seamless steel pipe database.

[0070] According to the steel pipe surface data, comprehensive processing is performed to obtain the surface quality evaluation value of the seamless steel pipe, which is used to quantitatively evaluate the surface quality of the seamless steel pipe and provide a basis for screening the steel pipe.

[0071] In a specific embodiment, the numerical expression of the surface quality evaluation value of the seamless steel pipe is: ; In the formula, It indicates the surface quality evaluation value of seamless steel pipe, CT indicates the size of steel pipe, BH indicates the wall thickness of steel pipe, ZX indicates the straightness of steel pipe, TY indicates the ovality of steel pipe, CU indicates the surface roughness of steel pipe, Indicates reference to standard steel pipe size, Indicates the reference standard steel pipe wall thickness, Indicates the straightness of the reference standard steel pipe. Indicates the ovality of the reference standard steel pipe. Indicates the surface roughness of the reference standard steel pipe. Indicates the allowable deviation of steel pipe size, Indicates the allowable deviation of the steel pipe wall thickness, Indicates the allowable deviation of the straightness of the steel pipe. Indicates the allowable deviation of the steel pipe ovality. Indicates the allowable deviation of the surface roughness of the steel pipe. Indicates the steel pipe surface quality influencing factor corresponding to the preset steel pipe size, Indicates the influence factor of the steel pipe surface quality corresponding to the preset steel pipe wall thickness, Indicates the steel pipe surface quality influencing factor corresponding to the preset steel pipe straightness, Indicates the steel pipe surface quality influencing factor corresponding to the preset steel pipe ovality, Indicates the steel pipe surface quality influencing factor corresponding to the preset steel pipe surface roughness.

[0072] It needs to be explained that the greater the absolute difference between the steel pipe size, steel pipe wall thickness, steel pipe straightness, steel pipe ovality and steel pipe surface roughness and the reference standard steel pipe size, steel pipe wall thickness, steel pipe straightness, steel pipe ovality and steel pipe surface roughness, the smaller the corresponding seamless steel pipe surface quality assessment value, indicating that the surface quality of the seamless steel pipe is worse.

[0073] It should be explained that in this embodiment Indicates the steel pipe surface quality influencing factor corresponding to the preset steel pipe size, Indicates the influence factor of the steel pipe surface quality corresponding to the preset steel pipe wall thickness, Indicates the steel pipe surface quality influencing factor corresponding to the preset steel pipe straightness, Indicates the steel pipe surface quality influencing factor corresponding to the preset steel pipe ovality, It indicates the steel pipe surface quality influencing factors corresponding to the preset steel pipe surface roughness. The values ​​of these influencing factors respectively indicate the influence of the steel pipe size, steel pipe wall thickness, steel pipe straightness, steel pipe ovality and steel pipe surface roughness unit value on the steel pipe surface quality. When used, these influencing factors can be directly obtained from the seamless steel pipe database. The values ​​of these influencing factors are preset in the seamless steel pipe database. For example, the steel pipe size, steel pipe wall thickness, steel pipe straightness, steel pipe ovality and steel pipe surface roughness form a mapping set with the preset influencing factors in the seamless steel pipe database respectively. The real-time steel pipe size, steel pipe wall thickness, steel pipe straightness, steel pipe ovality and steel pipe surface roughness are input into the mapping set to obtain the corresponding steel pipe surface quality influencing factors. These mapping relationships can be one-to-one or many-to-one. The value range of all influencing factors is between 0 and 1, indicating the degree from no influence to maximum influence.

[0074] It should be explained that in this embodiment, the steel pipe with poor straightness may have a large ovality, that is, the shape deviation of the cross section of the steel pipe in the length direction. The steel pipe with good straightness usually has a small ovality. The surface roughness of the steel pipe can be affected by the size and wall thickness of the steel pipe. Larger sizes and wall thicknesses may require more stringent processing to maintain a low surface roughness.

[0075] It should be explained that accurate dimensions and uniform wall thickness are the basis for ensuring the structural integrity and functionality of steel pipes. Good straightness helps the installation and use of steel pipes in construction, machinery and other fields, reducing the need for adjustment of fitting accuracy. Lower ovality means that the cross-section of the steel pipe is more round, which is very important for rotating parts or fluid transmission pipelines. Lower surface roughness can improve the corrosion resistance of steel pipes and reduce fluid resistance. For steel pipes that require coatings, good surface roughness also helps the coating adhere.

[0076] It should be explained that this embodiment helps to ensure that the steel pipe product can meet specific industrial standards and customer requirements by comprehensively considering the steel pipe size, steel pipe wall thickness, steel pipe straightness, steel pipe ovality and steel pipe surface roughness. At the same time, understanding the relationship between these parameters can help manufacturers optimize processing techniques, such as cold drawing, hot rolling, straightening, etc., to reduce surface defects. Steel pipes with uniform wall thickness, good straightness and low ovality perform better when subjected to pressure, bending or other mechanical loads. High-quality steel pipe surfaces mean that the cost of subsequent processing (such as grinding and painting) is reduced, which improves production efficiency. Steel pipes with high surface quality are more likely to meet the needs of the high-end market and can improve the market competitiveness of products. By comprehensively analyzing the steel pipe size, steel pipe wall thickness, steel pipe straightness, steel pipe ovality and steel pipe surface roughness, it is helpful to comprehensively evaluate the surface quality of the steel pipe, thereby ensuring the application performance and long-term reliability of the steel pipe in various fields.

[0077] Furthermore, the processing obtains the seamless steel pipe surface quality assessment value and the seamless steel pipe internal quality assessment value, and also includes: extracting the critical non-metallic inclusion number, the critical void number, the critical void density and the critical void diameter from the seamless steel pipe database.

[0078] According to the internal data of the steel pipe, comprehensive processing is performed to obtain the internal quality assessment value of the seamless steel pipe, which is used to quantitatively evaluate the internal quality of the seamless steel pipe and provide a basis for screening steel pipes.

[0079] In a specific embodiment, the numerical expression of the internal quality evaluation value of the seamless steel pipe is: ; In the formula, Indicates the internal quality assessment value of seamless steel pipe. It indicates the number of non-metallic inclusions inside the steel pipe, i indicates the number of each cavity inside the steel pipe, i=1,2,3,...,h, h indicates the total number of cavities inside the steel pipe, represents the diameter of the i-th cavity inside the steel pipe, KDM represents the cavity density inside the steel pipe, KDG represents the number of cavities inside the steel pipe, represents the critical number of non-metallic inclusions, represents the critical number of voids, represents the critical void density, represents the critical void diameter, Indicates the internal quality influencing factor of the steel pipe corresponding to the preset number of non-metallic inclusions. Indicates the internal quality influencing factor of the steel pipe corresponding to the preset cavity diameter. Indicates the internal quality influencing factor of the steel pipe corresponding to the preset void density. Indicates the internal quality influencing factor of the steel pipe corresponding to the preset number of voids.

[0080] It needs to be explained that when the number of non-metallic inclusions inside the steel pipe, the void density inside the steel pipe, the number of voids and the void diameter are larger, the corresponding seamless steel pipe internal quality assessment value will be smaller, indicating that the internal quality of the seamless steel pipe is worse.

[0081] It should be explained that in this embodiment Indicates the internal quality influencing factor of the steel pipe corresponding to the preset number of non-metallic inclusions. Indicates the internal quality influencing factor of the steel pipe corresponding to the preset cavity diameter. Indicates the internal quality influencing factor of the steel pipe corresponding to the preset void density. It indicates the influencing factors of the internal quality of the steel pipe corresponding to the preset number of voids. The values ​​of these influencing factors respectively indicate the influence of the number of non-metallic inclusions inside the steel pipe, the diameter of the voids inside the steel pipe, the void density and the number of voids on the internal quality of the steel pipe. When used, these influencing factors can be directly obtained from the seamless steel pipe database. The values ​​of these influencing factors are preset in the seamless steel pipe database. For example, the number of non-metallic inclusions inside the steel pipe, the diameter of the voids inside the steel pipe, the void density and the number of voids form a mapping set with the preset influencing factors in the seamless steel pipe database. The real-time number of non-metallic inclusions inside the steel pipe, the diameter of the voids inside the steel pipe, the void density and the number of voids are input into the mapping set to obtain the corresponding influencing factors of the internal quality of the steel pipe. These mapping relationships can be one-to-one or many-to-one. The value range of all influencing factors is between 0 and 1, indicating the degree from no influence to maximum influence.

[0082] It should be explained that void density is the result of the combined effect of void number and void diameter. The void density may increase with the increase of void number or void diameter. Non-metallic inclusions may promote the formation of voids, especially in areas with more inclusions, where the formation of voids may be more significant.

[0083] It needs to be explained that reducing non-metallic inclusions can improve the plasticity and toughness of steel pipes, reduce stress concentration points, and thus improve the fracture resistance of steel pipes. Reducing the void density can enhance the density and uniformity of steel pipes, and improve their pressure resistance and corrosion resistance.

[0084] It should be explained that this embodiment can more accurately evaluate the internal quality of the steel pipe through a comprehensive analysis of the number of non-metallic inclusions inside the steel pipe, the density of the voids inside the steel pipe, the number and the diameter of each void, thereby improving the standard and accuracy of quality control. The number of non-metallic inclusions inside the steel pipe, the density of the voids, the number and the diameter of each void are directly related to the mechanical properties of the steel pipe, such as tensile strength, yield strength, fatigue life, etc. Comprehensive analysis helps to predict the performance of the steel pipe in practical applications. At the same time, understanding the relationship between these parameters can help manufacturers adjust the production process, such as adjusting the smelting temperature, cooling rate, heat treatment, etc., to reduce internal defects and improve product quality. By reducing internal defects, the scrap rate can be reduced, the waste of raw materials and energy can be reduced, and the production cost can be reduced. It also helps to ensure the safety of steel pipes in the construction, oil and gas, chemical and other industries. High-quality steel pipe products are more competitive in the market, can meet more stringent quality requirements, and attract more customers.

[0085] The quality inspection platform is used to obtain the comprehensive quality evaluation index of seamless steel pipes based on the abnormal evaluation value of the seamless steel pipe production process, the number of early warnings, the surface quality evaluation value of seamless steel pipes and the internal quality evaluation value of seamless steel pipes through comprehensive analysis, and screen the steel pipes based on the comprehensive quality evaluation index of seamless steel pipes.

[0086] Specifically, a comprehensive analysis is performed to obtain a comprehensive evaluation index for the quality of seamless steel pipes. The specific analysis process is as follows: based on the abnormal evaluation value of the seamless steel pipe production process, the number of warnings, the surface quality evaluation value of the seamless steel pipe and the internal quality evaluation value of the seamless steel pipe, a comprehensive analysis is performed to obtain a comprehensive evaluation index for the quality of seamless steel pipes. The comprehensive evaluation index for the quality of seamless steel pipes is used to comprehensively and quantitatively evaluate the quality of seamless steel pipes and provide a basis for screening steel pipes.

[0087] In a specific embodiment, the numerical expression of the comprehensive evaluation index of seamless steel pipe quality is: ; In the formula, It represents the comprehensive evaluation index of seamless steel pipe quality. represents the abnormal evaluation value of the production process of seamless steel pipe at time t, Indicates the number of warnings. Indicates the number of critical warnings. Indicates the surface quality evaluation value of seamless steel pipe, Indicates the internal quality assessment value of seamless steel pipe. Indicates the seamless steel pipe quality correction factor corresponding to the preset abnormal assessment value of the seamless steel pipe production process. Indicates the seamless steel pipe quality correction factor corresponding to the preset number of warning times. Indicates the seamless steel pipe quality correction factor corresponding to the preset seamless steel pipe surface quality assessment value. Indicates the seamless steel pipe quality correction factor corresponding to the preset seamless steel pipe internal quality assessment value.

[0088] It needs to be explained that when the abnormal assessment value and the number of warning times in the seamless steel pipe production process are smaller, and the surface quality assessment value and the internal quality assessment value of the seamless steel pipe are larger, the corresponding comprehensive evaluation index of the seamless steel pipe quality will be larger, indicating that the quality of the seamless steel pipe is better.

[0089] It should be explained that in this embodiment Indicates the seamless steel pipe quality correction factor corresponding to the preset abnormal assessment value of the seamless steel pipe production process. Indicates the seamless steel pipe quality correction factor corresponding to the preset number of warnings. Indicates the seamless steel pipe quality correction factor corresponding to the preset seamless steel pipe surface quality assessment value. It represents the seamless steel pipe quality correction factor corresponding to the preset seamless steel pipe internal quality assessment value. The values ​​of these correction factors respectively represent the influence of the seamless steel pipe production process abnormal assessment value, the number of warnings, the seamless steel pipe surface quality assessment value and the seamless steel pipe internal quality assessment value unit value on the seamless steel pipe quality. When used, these correction factors can be directly obtained from the seamless steel pipe database. The values ​​of these correction factors are preset in the seamless steel pipe database. For example, the seamless steel pipe production process abnormal assessment value, the number of warnings, the seamless steel pipe surface quality assessment value and the seamless steel pipe internal quality assessment value form a mapping set with the correction factors preset in the seamless steel pipe database respectively. The real-time seamless steel pipe production process abnormal assessment value, the number of warnings, the seamless steel pipe surface quality assessment value and the seamless steel pipe internal quality assessment value are input into the mapping set to obtain the corresponding seamless steel pipe quality correction factor. These mapping relationships can be one-to-one or many-to-one. The value range of all correction factors is between 0 and 1, indicating the degree from no influence to maximum influence.

[0090] It should be explained that the increase in the abnormal evaluation value of the seamless steel pipe production process in this embodiment may lead to a decrease in the surface quality evaluation value, because production abnormalities often lead to an increase in surface defects. Similarly, the increase in the abnormal evaluation value may lead to a decrease in the internal quality evaluation value, because abnormalities in the production process may lead to the formation of internal defects. The increase in the abnormal evaluation value of the seamless steel pipe production process will also increase the number of warnings.

[0091] It needs to be explained that this embodiment can more effectively control quality, adjust production parameters in time, reduce the occurrence of defects, and thus improve product quality by conducting a comprehensive analysis of abnormalities in the seamless steel pipe production process, the number of warnings, and the surface quality and internal quality of the seamless steel pipe.

[0092] Furthermore, according to the comprehensive quality evaluation index of seamless steel pipes, the steel pipes are screened. The specific screening process is: extracting the threshold of the comprehensive quality evaluation index of seamless steel pipes from the seamless steel pipe database, comparing the comprehensive quality evaluation index of seamless steel pipes with the threshold of the comprehensive quality evaluation index of seamless steel pipes. If the comprehensive quality evaluation index of seamless steel pipes is higher than or equal to the threshold of the comprehensive quality evaluation index of seamless steel pipes, the comprehensive quality evaluation of seamless steel pipes is evaluated as qualified steel pipes. If the comprehensive quality evaluation index of seamless steel pipes is lower than the threshold of the comprehensive quality evaluation index of seamless steel pipes, the comprehensive quality evaluation of seamless steel pipes is evaluated as unqualified steel pipes.

[0093] In a specific embodiment, the seamless steel pipe database is used to store relevant data in the process of evaluating the quality of seamless steel pipes, including rated speed, rated vibration frequency, standard pressure in the furnace, critical response time, allowable deviation speed, allowable deviation vibration frequency, allowable deviation pressure and seamless steel pipe quality comprehensive evaluation index threshold value and the data extracted from the seamless steel pipe database in the above embodiment. The relevant data can be extracted by directly executing SQL queries through an enterprise-authorized database management system, such as MySQLOracle, SQL Server, etc., or by using data visualization tools, such as Tableau, Power BI, etc., to directly connect to the database and visualize the relevant data. Data can also be extracted from the database by using the ExtractTransform Load (ETL) tool and converted into other formats or loaded into different systems.

[0094] Reference Figure 2 As shown, the second aspect of the present invention provides a method for producing a seamless steel pipe for a bent shell screw drill, comprising: S1. Optimization of raw material composition; S2. Optimization of heating process; S3. Control of piercing and deformation process; S4. Control of tube rolling process; S5. Optimization of heat treatment; S6. Cooling controlled by cooling bed; S7. Cold working process; S8. Production inspection process.

[0095] It should be added that the specific measures for optimizing the raw material composition include: optimizing alloy elements such as C, Mn, Cr, Mo, and Al to make the chemical composition fluctuate within a narrow range. Controlling the carbon equivalent, improving the welding performance of the steel pipe, and avoiding the brittleness of the weld causing fracture during use. The purpose is to ensure that the steel pipe has high strength and plasticity, as well as high impact toughness.

[0096] The specific measures for optimizing the heating process include: selecting the appropriate heating temperature, maintaining a slightly positive pressure in the furnace, controlling the billet tapping speed at a heating rate of 0.8-1.0 minutes / mm according to the billet diameter, and ensuring uniform steel temperature. The purpose is to ensure that the billet is evenly heated during the heating process and reaches the best plastic state.

[0097] The specific measures for controlling the perforation deformation process include: using an oblique rolling perforator to adjust the angle between the roller axis and the rolling line to ensure smooth deformation of the metal. Optimizing the shape of the deformation zone, improving the dimensional accuracy of the tube wall and the quality of the internal and external surfaces. The purpose is to provide rough tubes with high dimensional accuracy and eliminate defects such as internal cracks and small warping.

[0098] The specific measures for the pipe rolling process control include: using the ASSEL180 pipe rolling unit to gradually reduce the outer diameter through multiple reducers to ensure uniform wall thickness. Using a double-guide roller pusher device to avoid abnormal shaking when the billet bites into the piercing machine to ensure the wall thickness accuracy of the steel pipe. The purpose is to ensure the dimensional accuracy and mechanical properties of the steel pipe.

[0099] The specific measures for heat treatment optimization include: using a complete annealing process to eliminate the stress of the hot-rolled steel pipe, and the microstructure after annealing is pearlite + ferrite + a small amount of granular bainite. Through quenching and tempering treatment (quenching + tempering), ensure that the yield strength is ≥890MPa, the tensile strength is ≥960~1110MPa, and the impact energy at -40℃ is ≥45J. The L9(34) orthogonal test is used to determine the optimal quenching and tempering process parameters, including quenching temperature, quenching time, tempering temperature and tempering time. The purpose is to obtain fine grain size and microstructure and improve the mechanical properties of the material.

[0100] The specific measures for controlling cooling of the cooling bed include: using chain cooling bed air cooling, combined with the automatic lubrication system of the open chain bed, to achieve rolling cooling of the steel pipe. Using short-cycle automatic circulation lubrication instead of long-cycle manual lubrication to avoid high temperature and oxide scale erosion of the chain bed lubrication system. The purpose is to achieve uniform cooling of the steel pipe and avoid residual stress and bending caused by uneven cooling.

[0101] The specific measures of the cold working process include: using a 400-ton press to pre-bend the angle, accurately controlling the pressing amount to 0.2mm, and ensuring that the angle is controlled within the target value. Tracking the rebound deformation of subsequent steel pipes in different length directions during quenching and tempering, and rolling cooling during water quenching, and continuously optimizing the bending angle before quenching and tempering. The purpose is to ensure the final dimensional accuracy of the steel pipe and the angle after bending and forming does not rebound.

[0102] The production inspection process is specifically the specific process of the production inspection system performing quality inspection on the seamless steel pipe.

[0103] In a specific embodiment, the production process of seamless steel pipe for bent shell screw drilling tools is as follows: 1. billet preparation, 2. heating, 3. perforation, 4. tube rolling, 5. micro-tension reducing, 6. cooling bed controlled cooling, 7. complete annealing, 8. straightening and bending, 9. tempering, 10. performance testing, 11. sawing, and 12. finished product.

[0104] The third aspect of the present invention provides a seamless steel pipe for a bent shell screw drill, comprising: a transmission shaft assembly, a universal shaft assembly, a motor assembly, an anti-drop assembly and a bypass valve assembly.

[0105] Reference Figure 3 As shown, the bent shell screw drilling tool includes: 1. a cross shaft, 2. a power section, 3. an adjustable bending support, and 4. a bearing group.

[0106] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. Based on the production and detection system of seamless steel pipe for bent shell screw drilling tools, it is characterized by: include: Production process inspection module, steel pipe quality inspection module and quality inspection platform; The production process detection module is used to obtain the steel pipe production process data, process it to obtain the abnormal evaluation value of the seamless steel pipe production process, and issue an early warning to the production process according to the abnormal evaluation value of the seamless steel pipe production process, and record the number of early warnings; The steel pipe quality inspection module is used to collect basic data of steel pipes and process them to obtain the surface quality assessment value and internal quality assessment value of seamless steel pipes; The quality inspection platform is used to obtain the comprehensive quality evaluation index of seamless steel pipes based on the abnormal evaluation value of the seamless steel pipe production process, the number of early warnings, the surface quality evaluation value of seamless steel pipes and the internal quality evaluation value of seamless steel pipes through comprehensive analysis, and screen the steel pipes based on the comprehensive quality evaluation index of seamless steel pipes.

2. According to claim 1, the production and detection system for seamless steel pipes for bent shell screw drilling tools is characterized in that: The processing obtains an abnormal evaluation value of the seamless steel pipe production process, including: The steel pipe production process data includes: quenching temperature, quenching time, tempering temperature, tempering time and equipment status data; The equipment status data includes fan speed, fan vibration frequency, furnace pressure and control system response time; Extract the rated speed, rated vibration frequency, standard pressure in the furnace, critical response time, allowable deviation speed, allowable deviation vibration frequency and allowable deviation pressure from the seamless steel pipe database; According to the equipment status data, comprehensive processing is performed to obtain the abnormal equipment status interference characteristic value, which is used to quantitatively evaluate the degree of interference of the abnormal equipment status on the steel pipe production process, and provide a basis for evaluating the abnormality of the seamless steel pipe production process.

3. The production and detection system for seamless steel pipes for bent shell screw drilling tools according to claim 2 is characterized in that: The processing to obtain the abnormal evaluation value of the seamless steel pipe production process also includes: Extract the reference standard quenching temperature, reference standard quenching time, reference standard tempering temperature, reference standard tempering time, allowable deviation quenching temperature, allowable deviation quenching time, allowable deviation tempering temperature and allowable deviation tempering time from the seamless steel pipe database; According to the steel pipe production process data and the abnormal interference characteristic value of the equipment status, a comprehensive analysis is performed to obtain the abnormal evaluation value of the seamless steel pipe production process. The abnormal evaluation value of the seamless steel pipe production process is used to quantitatively evaluate the abnormality degree of the seamless steel pipe in the production process, and provide a basis for evaluating the quality of the seamless steel pipe.

4. The production and detection system for seamless steel pipes for bent shell screw drilling tools according to claim 3 is characterized in that: The production process is warned according to the abnormal evaluation value of the seamless steel pipe production process, and the number of warnings is recorded. The specific process is as follows: The abnormality assessment threshold of the seamless steel pipe production process is extracted from the seamless steel pipe database, and the abnormality assessment value of the seamless steel pipe production process is compared with the abnormality assessment threshold of the seamless steel pipe production process. If the abnormality assessment value of the seamless steel pipe production process is higher than or equal to the abnormality assessment threshold of the seamless steel pipe production process, the seamless steel pipe production process is warned and the number of warnings is recorded; if the abnormality assessment value of the seamless steel pipe production process is lower than the abnormality assessment threshold of the seamless steel pipe production process, the seamless steel pipe production process is continuously monitored.

5. The production and detection system for seamless steel pipes for bent shell screw drilling tools according to claim 1 is characterized in that: The processing obtains the seamless steel pipe surface quality evaluation value and the seamless steel pipe internal quality evaluation value, specifically including: The basic data of the steel pipe includes the surface data of the steel pipe and the internal data of the steel pipe; The steel pipe surface data includes steel pipe size, steel pipe wall thickness, steel pipe straightness, steel pipe ovality and steel pipe surface roughness; The internal data of the steel pipe include the number of non-metallic inclusions inside the steel pipe, the density of voids inside the steel pipe, the number of voids and the diameter of voids; Extract the reference standard steel pipe size, reference standard steel pipe wall thickness, reference standard steel pipe straightness, reference standard steel pipe ovality, reference standard steel pipe surface roughness, allowable deviation steel pipe size, allowable deviation steel pipe wall thickness, allowable deviation steel pipe straightness, allowable deviation steel pipe ovality and allowable deviation steel pipe surface roughness from the seamless steel pipe database; According to the steel pipe surface data, comprehensive processing is performed to obtain the surface quality evaluation value of the seamless steel pipe, which is used to quantitatively evaluate the surface quality of the seamless steel pipe and provide a basis for screening the steel pipe.

6. The production and detection system for seamless steel pipes for bent shell screw drilling tools according to claim 5 is characterized in that: The processing to obtain the seamless steel pipe surface quality evaluation value and the seamless steel pipe internal quality evaluation value also includes: The critical number of non-metallic inclusions, critical number of voids, critical void density and critical void diameter were extracted from the seamless steel pipe database; According to the internal data of the steel pipe, comprehensive processing is performed to obtain the internal quality assessment value of the seamless steel pipe, which is used to quantitatively evaluate the internal quality of the seamless steel pipe and provide a basis for screening steel pipes.

7. The production and detection system for seamless steel pipes for bent shell screw drilling tools according to claim 6 is characterized in that: The comprehensive analysis obtains the comprehensive evaluation index of seamless steel pipe quality, and the specific analysis process is as follows: Based on the abnormal assessment value of the seamless steel pipe production process, the number of early warning times, the surface quality assessment value of the seamless steel pipe and the internal quality assessment value of the seamless steel pipe, a comprehensive analysis is conducted to obtain the comprehensive assessment index of the seamless steel pipe quality. The comprehensive assessment index of the seamless steel pipe quality is used to comprehensively and quantitatively assess the quality of the seamless steel pipe and provide a basis for screening the steel pipe.

8. The production and detection system for seamless steel pipes for bent shell screw drilling tools according to claim 7 is characterized in that: According to the comprehensive evaluation index of seamless steel pipe quality, the steel pipe is screened, and the specific screening process is as follows: The threshold of the comprehensive quality evaluation index of seamless steel pipe is extracted from the seamless steel pipe database, and the comprehensive quality evaluation index of seamless steel pipe is compared with the threshold of the comprehensive quality evaluation index of seamless steel pipe. If the comprehensive quality evaluation index of seamless steel pipe is higher than or equal to the threshold of the comprehensive quality evaluation index of seamless steel pipe, the comprehensive quality evaluation of seamless steel pipe is evaluated as qualified steel pipe; if the comprehensive quality evaluation index of seamless steel pipe is lower than the threshold of the comprehensive quality evaluation index of seamless steel pipe, the comprehensive quality evaluation of seamless steel pipe is evaluated as unqualified steel pipe.

9. The production and detection system for seamless steel pipes for bent shell screw drilling tools according to claim 6 is characterized in that: The specific numerical expression of the internal quality evaluation value of the seamless steel pipe is: ； In the formula, Indicates the internal quality assessment value of seamless steel pipe. It indicates the number of non-metallic inclusions inside the steel pipe, i indicates the number of each cavity inside the steel pipe, i=1,2,3,...,h, h indicates the total number of cavities inside the steel pipe, represents the diameter of the i-th cavity inside the steel pipe, KDM represents the cavity density inside the steel pipe, KDG represents the number of cavities inside the steel pipe, represents the critical number of non-metallic inclusions, represents the critical number of voids, represents the critical void density, represents the critical void diameter, Indicates the internal quality influencing factor of the steel pipe corresponding to the preset number of non-metallic inclusions. Indicates the internal quality influencing factor of the steel pipe corresponding to the preset cavity diameter. Indicates the internal quality influencing factor of the steel pipe corresponding to the preset void density. Indicates the internal quality influencing factor of the steel pipe corresponding to the preset number of voids.

10. The production method of the production and detection system of the seamless steel pipe for the bent shell screw drill tool according to any one of claims 1 to 9, characterized in that: include: S1. Optimization of raw material composition; S2. Heating process optimization; S3. Punching deformation process control; S4. Tube rolling process control; S5. Heat treatment optimization; S6. Cooling bed controls cooling; S7. Cold working process; S8. Production inspection process.

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