742 results about "Continuous caster" patented technology

The invention discloses a roll gap measuring instrument and an integrated continuous casting machine online roll gap measuring device, and aims to improve the precision of roll gap measurement and the convenience of operation. The roll gap measuring instrument comprises a mounting frame and a measuring assembly. The measuring assembly comprises a swing arm, a first elastic piece, a shifting block, a detection piece and a first detector. The swing arm is rotationally connected with the mounting frame, the shifting block is connected with the swing arm, and meshing teeth are arranged on the shifting block. The first detector is installed on the installation frame, the detection piece is in sliding fit with the first detector, and a rack meshed with the meshing teeth is arranged on the detection piece. The first elastic piece is used for driving the detection piece to return to the initial position. When the swing arm drives the shifting block to rotate, the shifting block drives the detection piece to move, the swing amplitude of the swing arm is calculated according to the moving distance of the detection piece, and then the roller gap between the rollers to be measured is obtained. According to the roll gap measuring instrument, through cooperation of the swing arm, the shifting block, the detection piece and the first detector, high-precision measurement of the roll gap is achieved, and the accuracy and reliability of a measurement result are improved.

The invention relates to the technical field of magnesium ingot conveying, in particular to a discharging and conveying device and method for magnesium ingot conveying The discharging and conveying device comprises a rack, a continuous casting machine body and a conveying mechanism are vertically distributed on the rack, the continuous casting machine body is used for conveying produced magnesium ingots from left to right, and a limiting mechanism is arranged on the rack. A side scrap removing mechanism is arranged between the continuous casting machine body and the conveying mechanism, the magnesium ingot discharging angle, the optimal discharging position and the vertical sliding track can be accurately controlled, and the magnesium ingots are prevented from deviating in the conveying process; chippings and impurities on the surfaces of the magnesium ingots are brushed away, and the situation that normal conveying of the magnesium ingots is affected due to deviation of conveying of the magnesium ingots caused by blockage, blockage and clamping stagnation of chain seams of the conveying mechanism due to direct contact with the conveying mechanism after blanking is prevented; the arrangement action of a plurality of magnesium ingots required by stacking is preposed, and the situation that the magnesium ingots and a chain belt are scraped when the magnesium ingots are stacked at a processing point and wait for a stacking robot to grab the magnesium ingots is reduced.

The embodiment of the invention provides a method for solving surface scabbing of a prestressed PC (Poly Carbonate) rod, which comprises the following steps: after a square casting blank of the prestressed PC rod is output from a continuous casting machine, the square casting blank is fed into a spraying device for quenching, so that the surface temperature of the square casting blank is reduced to be below 500 DEG C; the quenched square casting blank is fed into a heating furnace to be subjected to temperature returning treatment; and the square casting blank subjected to temperature returning treatment is rolled. According to the technical scheme, the square casting blank is not naturally cooled off line like an existing cold conveying process, the square casting blank is quenched, the temperature of the square casting blank is rapidly cooled to the preset temperature, then rolling work is started through temperature returning, the whole process is conducted on line, the square casting blank does not need to be off line, and therefore production efficiency is greatly improved.

The invention relates to the technical field of continuous casting of copper materials, in particular to high-quality copper material pouring equipment which comprises a driving frame and a horizontal continuous casting machine body, an alignment frame is arranged on the top face of the driving frame, and a pouring assembly for pouring molten copper liquid into the horizontal continuous casting machine body is arranged on the alignment frame. A connecting assembly used for moving the alignment frame is arranged between the driving frame and the alignment frame, and two sets of alignment assemblies used for accurately aligning the alignment frame and the horizontal continuous casting machine body are symmetrically arranged on the side face of the alignment frame. Two sets of positioning assemblies matched with the alignment assemblies are symmetrically arranged on the side face of the horizontal continuous casting machine body. By means of the linkage design of the positioning assembly and the alignment assembly, the position of the alignment frame can be automatically adjusted, the tundish and the horizontal continuous casting machine body are accurately aligned to the same horizontal position, it is ensured that a pouring nozzle is aligned to the center of a material opening, and the problem of molten copper splashing or uneven pouring caused by position deviation is solved.

The invention discloses a roll gap measuring instrument and a split type continuous casting machine online roll gap measuring device. The technical problem that an existing roll gap measuring instrument can only move in the single direction for measurement is solved. The roll gap measuring instrument comprises a box body, a roll gap detection structure and a roll gap measuring structure. The roll gap detection structure comprises a swing arm, a first elastic piece and a shifting block. The first end of the swing arm extends out of the box body, the shifting block is installed at the second end of the swing arm, and the first elastic piece is used for driving the swing arm to rotate to the initial position relative to the box body. The roll gap measuring structure comprises a first detector and a detection piece. The detection piece is in sliding fit with the first detector, and when the swing arm drives the shifting block to swing, the shifting block drives the detection piece to move. According to the roll gap measuring instrument disclosed by the invention, the compact box body and the innovative roll gap detection structure are designed, so that the measuring instrument can greatly reduce the equipment size while keeping the measuring precision, is convenient to carry and mount, and is particularly suitable for a working environment with limited space.

The invention provides a round billet continuous casting machine and multi-stage multi-mode electromagnetic stirring device matching method, and belongs to the technical field of metallurgy continuous casting, and the method comprises the steps that an electromagnetic stirrer in a crystallizer area applies a rotating magnetic field in the initial solidification stage, and the forming quality of an initial solidification shell is optimized; an electromagnetic stirrer in the secondary cooling area utilizes a traveling wave magnetic field to continuously regulate and control the solidification process of the core part of the casting blank; the feeding effect of a final solidification section is remarkably improved through the action of a high-intensity magnetic field by an electromagnetic stirrer in a solidification tail end area, and multiple matching modes are produced to be matched with existing continuous casting processes of different steel grades according to the characteristics of the steel grades, the throwing direction of each area and the type of the electromagnetic stirrer. And then through linkage of the multi-stage multi-mode electromagnetic stirring device and cooperative control over continuous casting process parameters, the equiaxed crystal area of the casting blank is enlarged, segregation is reduced, the internal quality of the casting blank is improved, and the density, uniformity and mechanical performance of the casting blank are improved.

The invention relates to a method for controlling cracks of a steel casting blank for a new energy automobile battery pack. The method comprises the steps of casting blank composition control, casting powder performance control, crystallizer inlet and outlet water temperature control, submersed nozzle insertion depth control, molten steel superheat degree control, secondary cooling water distribution specific water flow control, crystallizer taper control and continuous casting machine equipment precision control. The steel comprises, by mass, 0.08%-0.11% of C, 0.55%-0.70% of Si, 2.40%-2.70% of Mn, smaller than or equal to 0.018% of P, smaller than or equal to 0.008% of S, 0.020%-0.070% of Als, 0.015%-0.035% of Nb, 0.02%-0.04% of Ti, 0.15%-0.35% of Cr, smaller than or equal to 0.006% of N and the balance Fe. The alkalinity R of the casting powder ranges from 1.30 to 1.42; 0.6 wt%-0.8 wt% of Li2O is added into the casting powder; when the water inlet temperature of the crystallizer is 25-30 DEG C, the wide surface water inlet and outlet temperature difference of the crystallizer is 2-5 DEG C, and the narrow surface water inlet and outlet temperature difference is 4-8 DEG C; when the water inlet temperature of the crystallizer is 31-36 DEG C, the water inlet and outlet temperature difference of the wide surface of the crystallizer is 4-7 DEG C, and the water inlet and outlet temperature difference of the narrow surface is 5-9 DEG C; constant-pulling-speed pouring is adopted for continuous casting, the tonnage of a tundish is 35-70 tons, and the liquid level fluctuation of a crystallizer is smaller than or equal to + / -5 mm. The defect of'black lines' on the surface of the strip steel of the battery pack for the new energy automobile can be effectively improved, and the surface quality of the battery pack for the new energy automobile is guaranteed.

The invention relates to the technical field of steel, in particular to high-strength wear-resistant steel and a preparation process thereof. The method comprises the following steps: S1, carrying out electric furnace smelting, LF refining and RH vacuum treatment on raw materials, and pouring into a steel billet through a continuous casting machine; s2, the steel billet is subjected to quenching and tempering treatment in sequence, and after hot rolling, steel is prepared; s3, uniformly mixing aminated aluminum oxide, modified graphene oxide and deionized water, carrying out ultrasonic treatment for 30-50 minutes, adding waterborne epoxy resin, a curing agent, a flatting agent and a defoaming agent, and uniformly mixing, so as to obtain a wear-resistant coating; and S4, the surface of the steel is coated with a wear-resistant coating, after drying, a wear-resistant coating is formed, the high-strength wear-resistant steel is obtained, the high-strength wear-resistant steel not only has excellent wear resistance, but also has excellent corrosion resistance, and the service life can be effectively prolonged.

The application discloses a method for improving the quality of high-nickel steel and belongs to the technical field of high-nickel steel continuous casting. The method comprises the following steps: continuously casting high-nickel steel liquid with a nickel content of not less than 3.5% in a continuous casting machine; controlling the temperature of a slab entering and leaving a two-cooling zone of the continuous casting machine and the opening shrinkage value of a casting roller of the two-cooling zone during the continuous casting process, so that the slab is pressed down and high-quality high-nickel steel is obtained; wherein the temperature of the slab entering and leaving the two-cooling zone of the continuous casting machine is 1100-1150 DEG C and 800-900 DEG C respectively, and the opening shrinkage value of the casting roller of the two-cooling zone of the continuous casting machine is 1.6-4.5 mm. The method provided by the application realizes solute element redistribution, slows down the defects of element central segregation, and thus improves the quality of high-nickel steel.

The invention discloses a lead-acid battery production process, and relates to the technical field of lead-acid battery production, and the lead-acid battery production process comprises the following steps: S1, lead powder preparation: carrying out grain cutting and closed Balton ball milling on an electrolytic lead ingot to obtain lead powder with BET0.65-0.75 m / g and apparent density 1.10-1.20 g / cm < 3 >, and the nitrogen-sealed oxygen content of a lead powder bin is less than or equal to 5vol%; s2, grid casting: heating the lead-calcium-tin-aluminum alloy to 480 + / -10 DEG C in a lead smelting furnace, and casting the lead-calcium-tin-aluminum alloy into a grid with the thickness tolerance of + / -0.05 mm through a continuous casting machine; s3, performing paste mixing; the device has the advantages that through side insertion of the inverted dovetail groove, isolation of the hydrophilic PET thin sheet and blocking of the top air curtain, condensate is guided to the collecting tank along the thin sheet and is pumped out in real time, no PbSO4 white ring is left on the surface of the polar plate, and the powder falling rate of the follow-up slicing and vibration procedures is remarkably reduced.

The invention provides a continuous casting machine pulling speed stability control method, system and equipment and a medium, and the method comprises the steps: S1, obtaining real-time state data of continuous casting production of a continuous casting machine, including molten steel temperature, flow, crystallizer vibration parameters, withdrawal and straightening machine speed, casting blank size and quality detection data; s2, a virtual three-dimensional model of the continuous casting machine production process is built, the virtual three-dimensional model is used for reflecting the operation state of all equipment and the change condition of materials in the actual production process in real time, and therefore the element cosmic space of the continuous casting production process is built; s3, on the basis of the obtained real-time state data of continuous casting production of the continuous casting machine, real-time monitoring and correlation analysis are conducted on the continuous casting production process through the built element cosmic space of the continuous casting production process, and therefore abnormal judgment and casting speed change trend prediction are achieved; and S4, optimal pulling speed control is generated on the basis of abnormal judgment and pulling speed change trend prediction, and the pulling speed of the continuous casting machine is controlled and regulated through the generated optimal pulling speed control.

A simulated fixed-weight cutting data processing method based on a cognitive intelligent process model, the method comprising: mounting one hydraulic lifting platform scale per strand at a cooling bed transfer run-out table of a multi-strand continuous casting machine; each time after the platform scale performs weighing, feeding back weighing data to a fixed-weight cutting model; on the basis of the fixed-weight cutting model, using a mathematical calculation formula to calculate the length of a steel billet; issuing steel billet length information to a flame cutting machine for cutting, so as to obtain a cut steel billet; weighing the cut steel billet again by means of the platform scale, and calculating a length required for the next instance of steel billet cutting; ensuring that a process is continuously and circularly performed, and collecting a series of parameters in the above process; and studying dynamic relationships between the parameters and the mathematical calculation formula. The method improves the prediction accuracy of the weighing data. Further comprised are a simulated fixed-weight cutting data processing system based on a cognitive intelligent process model, and an electronic device and a computer-readable storage medium. The effect of simulating fixed-weight cutting is achieved, thereby ensuring the cutting accuracy.

The utility model provides a magnetism gathering roller type magnetic stirrer for a slab continuous casting machine, which relates to the technical field of electromagnetic metallurgy process in steel industry, and comprises a stirrer body, the stirrer body consists of a roller sleeve, an inductor, an outer shielding ring group and a bearing seat, the inductor is inserted in the roller sleeve, the outer shielding ring group is arranged below the roller sleeve, and the bearing seat is arranged below the roller sleeve. According to the magnetism gathering type stirrer, the overall design is novel, the structure is simple, the angle A of the appearance shielding ring is adjusted through the kidney-shaped hole, and when a pair of magnetism gathering roller type magnetic stirrers is installed in a mirror image mode, the outer shielding ring is aligned. The roller type electromagnetic stirrer has multiple magnetism gathering effects of the inner shielding ring, the magnetic poles and the outer shielding ring, and is high in intermediate magnetic induction intensity and thrust and good in metallurgical effect.

The present invention discloses a method for preventing breakout in a high-speed billet continuous casting machine. During continuous casting, the billet continuous casting machine operates at a casting speed of 3.5 to 5.5 m / min and a mold taper of 1.9 to 2.2% / m. The mold flux used has a melting point of 1055 to 1095°C, a melting rate of 25 to 33 seconds, and a viscosity of 0.09 to 0.13 Pa·s. When the casting speed is 3.5 to 4.0 m / min, the tundish molten steel temperature must not exceed 1535°C. When the casting speed is 4.0 to 5.5 m / min, the tundish molten steel temperature must not exceed 1530°C. The present invention controls breakout in the mold or at the foot roll section by adopting an appropriate mold copper tube taper and using a mold flux with an appropriate melting point, melting rate, and viscosity. This method achieves stable high-speed production for the billet continuous casting machine, resolves the difficulty in handling breakouts and the inability to complete production plans due to high casting speed breakouts, and improves the billet yield.

The utility model relates to aluminium alloy production and processing technical field, concretely relates to a continuous casting machine for aluminium alloy plate, including base, the both sides of base's bottom end wall front and back are equipped with fixed base, the inner bottom wall front side of base is equipped with motor no.

The utility model relates to the field of steelmaking continuous casting equipment, in particular to a large round billet continuous casting machine cold start throwing connecting device which comprises an annular cover, the annular cover is formed by welding steel bars, the rear end of the annular cover is connected with an end cover, the end cover is formed by welding steel bars, and an L-shaped connecting frame is welded to the front end of the annular cover. And a baffle plate corresponding to the L-shaped connecting frame is arranged on the annular cover. As a filling aggregate for the hook head part of the end part of the casting blank, the filling aggregate has the effect of quickly reducing the casting blank temperature of the hook head part of the end part of the casting blank, improves the mechanical strength of the hook head part of the end part of the casting blank, ensures reliable connection, ensures successful cold start of a continuous casting machine, reduces cold start accidents, improves the operation rate of the continuous casting machine and reduces the cost of a continuous casting process.

A continuous casting billet surface quenching method in the embodiment of the present application, by cutting the continuous casting billet leaving the continuous casting machine, the to-be-quenched billet is obtained, the to-be-quenched billet is conveyed into the first quenching area for first-stage quenching, and the surface temperature after the first-stage quenching is controlled within the first preset temperature threshold range, the once-quenched billet is obtained, the once-quenched billet is conveyed into the temperature-recovery area for temperature recovery, the once-quenched billet after the temperature recovery is obtained, the once-quenched billet after the temperature recovery is quenched in the second quenching area, the surface temperature after the second-stage quenching is controlled within the second preset temperature threshold range, the twice-quenched billet is obtained, and the twice-quenched billet is conveyed to the heating furnace; the method can effectively reduce the surface temperature of the continuous casting billet under high speed to a suitable temperature range by setting two quenching areas for quenching control of the continuous casting billet under high speed, and the temperature recovery section between the quenching areas can reduce the quenching stress.

The utility model relates to the field of steel production equipment, in particular to a continuous casting machine capable of improving yield, which comprises a crystallization system, the crystallization system comprises a crystallization box, a crystallization pipeline, a vibration component and a cooling component, the vibration component comprises a bottom frame, a buffer spring, a driving motor, a crankshaft, a connecting rod and an ejector rod, and the buffer spring is fixedly mounted on the side of the bottom frame. The bottom of the crystallization box is fixedly connected with the buffer spring, a liquid inlet is formed in the top of the crystallization box, a liquid outlet is formed in one side of the crystallization box, the crystallization pipeline and the cooling assembly are arranged in the crystallization box, and through the U-shaped structure and installation of the cooling ring, it is ensured that cooling water is evenly sprayed to all parts of the crystallization pipeline, especially the top of the crystallization pipeline; the cooling effect is improved, the crystallization defect is reduced, the crystallization box vibrates through the reciprocating motion of the vibration assembly, the tempering solution uniformly flows in the crystallization pipeline, and the crystallization efficiency of the tempering solution is improved.

The utility model discloses a brake device, system and continuous casting machine variable frequency brake system of frequency converter relates to frequency converter brake field, and the first end of processor is connected with the first end of contactor's auxiliary contact, and the second end of processor is connected with the first end of relay's coil, the second end of contactor's auxiliary contact is accessed first power voltage, and the coil of relay is used for when the high level of processor output, and the coil of relay is used for after the power of the coil of relay, and the auxiliary contact of relay is used for after the power of the coil of relay, and the coil of contactor is used for after the power of the coil of contactor, and the main contact of contactor is used for after the power of the coil of contactor, and the brake resistance is used for after the main contact of contactor closes, and the feedback electric energy of the direct current side of frequency converter is consumed. The application can be in transmission roll way deceleration or the brake resistance of parking fast investment through the collaborative control of processor, relay and contactor, and the feedback electric energy of the direct current side of frequency converter is effectively consumed, and the overvoltage damage frequency converter is prevented.

In a manufacturing method for a rolled metal strip, the method including rolling, by a rough rolling mill 70, a cast piece cast by a continuous casting machine (CC) 12, the CC 12 is configured to be capable of selecting an endless mode in which a cast piece cast into a first thickness X is rolled by the rough rolling mill 70 without being cut and a batch mode in which the cast piece cast into a second thickness Y thicker than the first thickness X is rolled by the rough rolling mill 70 after being cut. This provides a manufacturing method for a rolled metal strip and a rolling facility that can improve the productivity of the rolled metal strip in a continuous casting facility that uses both the endless mode and the batch mode compared with conventional techniques.

A method for creating a cast slab quality prediction model according to the present invention includes: an imaging step for capturing an image of a molten metal surface inside a mold of a continuous casting machine; a determination step for determining the operation mode of the continuous casting machine by using the image captured in the imaging step; an extraction step for extracting time-series image data in cast-slab units by subjecting the image captured in the imaging step to image processing; a calculation step for calculating a feature quantity for the time-series image data extracted in the extraction step; and a creation step for creating, for each operation mode of the continuous casting machine, a quality prediction model having the time-series image data feature quantity as an input variable and the quality of the cast slab corresponding to the time-series image data as an output variable, by using the operation mode of the continuous casting machine when the time-series image data extracted in the extraction step is obtained, the feature quantity of the time-series image data, and an actual value of the quality of the cast slab corresponding to the time-series image data.

The utility model relates to the technical field of continuous casting machine crystallizers, in particular to a square billet continuous casting machine crystallizer which comprises a supporting plate, a crystallization chamber and a quick release assembly, the crystallization chamber is installed inside the supporting plate, an end cover is installed on the upper surface of the crystallization chamber, a guide pipe is fixedly connected to the outer circumference of the crystallization chamber, and the quick release assembly is installed on the guide pipe. The guide pipe is communicated with the inner wall of the crystallization chamber, the guide pipe is fixedly connected with the upper surface of the supporting plate, the quick release assembly is arranged on the cambered surface of the crystallization chamber, and a foot roller is mounted on the lower surface of the crystallization chamber; the quick release assembly comprises a connecting unit, the connecting unit comprises an L-shaped support, and the L-shaped support abuts against the cambered surface of the crystallization chamber. According to the utility model, through the arrangement of the quick release assembly, the foot roller of the equipment can be conveniently disassembled and maintained by a worker, so that the problem that the maintenance cost is increased due to complicated disassembly operation when a bolt is used for fixing is reduced, and the convenience of equipment maintenance is further improved.

The utility model discloses a steelmaking continuous casting machine waste heat recycling device which comprises a conveying pipe and a heat exchanger, an annular blocking plate is arranged at the casting blank inlet end of the conveying pipe, a plurality of annular cavities are sequentially formed in the conveying pipe at intervals from the casting blank inlet end to the casting blank outlet end, and each annular cavity is connected with a cold air pipe. A plurality of air nozzles are uniformly distributed on the circumference of the side wall of the side, facing the annular blocking plate, of the annular cavity, cooling cavities are formed between the adjacent annular cavities and between the annular blocking plate and the annular cavities, a plurality of conveying rollers are arranged in the cooling cavities, an exhaust pipe is arranged on the side wall of the side, close to the annular blocking plate, of the cooling cavity, and a heat exchange pipe assembly is arranged in the heat exchanger. The exhaust pipe is communicated with an inlet of the heat exchange pipe assembly, a water supplementing opening is formed in the heat exchanger, an air compressor and a vortex tube which are communicated are arranged on the outer side of the conveying pipe, and a cold air outlet of the vortex tube is communicated with the cold air pipes. In conclusion, the casting device has the advantages of being small in heat loss, high in casting efficiency and high in heat recovery rate.

The utility model relates to the technical field of iron alloy forming and casting, and discloses a molten iron alloy granulating continuous casting machine which comprises a continuous casting machine body, a supporting seat is arranged on one side of the continuous casting machine body, a driving mechanism is fixedly installed on the top of the supporting seat, and a conveying roller is arranged at the output end of the driving mechanism through a connecting shaft. By arranging the motor, the rotating plate is driven to rotate in the supporting frame, accurate limiting and centering adjustment of molten iron alloy are achieved through the linkage effect of the first connecting arm and the movable plate, the stability of the iron alloy in the conveying process is improved, the uniformity of the iron alloy in the cooling process is improved, and therefore the quality and consistency of products are improved; the limiting fence plate can be flexibly adjusted according to the size and the shape of the molten iron alloy in cooperation with the connecting column, the sliding block, the mounting ring and the connecting arm, meanwhile, due to the arrangement of the limiting rotating wheel, friction and resistance of the iron alloy in the conveying process are reduced, and the effect of improving the production efficiency is achieved.

The invention provides a double-length cutting device and method for a continuous casting machine, and belongs to the technical field of steelmaking continuous casting equipment. The double-length cutting device of the continuous casting machine comprises a cutting unit, the cutting unit comprises a movable frame body, a primary flame cutting machine and a secondary flame cutting machine, the primary flame cutting machine and the secondary flame cutting machine are installed on the movable frame body, and the distance between the primary flame cutting machine and the secondary flame cutting machine can be adjusted in the running direction of a casting blank so that the double-length cutting requirement of the casting blank can be met; the multiple roller bed units are located below the cutting device, the multiple roller bed units are sequentially arranged at intervals in the casting direction, each roller bed unit is provided with a roller bed and an avoiding mechanism, the roller beds support the casting blanks, and the avoiding mechanisms drive the roller beds to move between the working position for bearing the casting blanks and the avoiding position for avoiding the cutting flame flow; and the synchronizing unit is arranged on the movable frame body, and the synchronizing unit controls the movable frame body to be synchronized with the moving casting blank. The equipment investment and workshop construction cost are greatly reduced, and the adaptability and economical efficiency of the continuous casting production line are enhanced.

The present application belongs to the technical field of liquid surface fluctuation evaluation of crystallizer molten steel, and particularly relates to a liquid surface fluctuation evaluation and regulation method for a thin slab continuous casting crystallizer with a multi-hole submerged entry nozzle. The method comprises the following steps: obtaining the width and thickness of the thin slab continuous casting crystallizer; obtaining the area of each outlet on one side of the multi-hole submerged entry nozzle of the thin slab continuous casting crystallizer, and respectively calculating the weight value of each outlet in molten steel flow distribution; obtaining the typical casting speed and submerged entry nozzle immersion depth used during stable production of the thin slab continuous casting machine; obtaining the position, speed and angle of the molten steel jet impact on the narrow surface of the crystallizer; calculating the liquid surface fluctuation index of each outlet jet according to the outlet area weight value; mathematically adding the liquid surface fluctuation index of each outlet jet to obtain a comprehensive liquid surface fluctuation index; and controlling the comprehensive liquid surface fluctuation index within a reasonable range by adjusting the production parameters such as casting speed and submerged entry nozzle immersion depth to achieve the purpose of regulating the liquid surface fluctuation of the crystallizer.

The invention relates to a continuous casting nail shooting method with high hit precision. The method is high in measurement precision, few in continuous casting length deviation, suitable for various fixed lengths and capable of hitting an expected nail shooting position with high precision. The method comprises the implementation steps that a continuous casting length tracking measurement system is corrected; measuring the distance H from the mounting position of the nail shooting device to the lower edge of the crystallizer; the liquid level height H1 in the crystallizer is determined; the nail shooting position is determined to be X at the tail end of the Sth continuous casting billet, and the length of the nail shooting sample is 2X; the blank head waste material length L0 is determined, and the fixed lengths of the continuous casting blanks are L1... Ls in sequence according to the blank ejection sequence; setting a thermal shrinkage coefficient A; a cutting gap H2 is set, the total ejection length Ltotal is set, and when Ltotal-(H + H1) = [(L0 + L1 + L2 + L3 +... + Ls) * A + H2 * S-X * A], the time is the firing time of the nail shooter; performing percussion; the method is suitable for nail shooting of continuous casting billets with various fixed lengths, does not depend on the pulling speed of a continuous casting machine, does not use manual measurement data, is high in hit precision, and can achieve the effect that the deviation of the nail shooting position from the expected nail shooting position is smaller than or equal to 20 mm.

The application provides a full-roller bearing of a special strip holder of a continuous casting machine and a machining process and equipment, and relates to the field of special bearings of continuous casting machines. The full-roller bearing of the special strip holder of the continuous casting machine comprises a bearing inner ring and a bearing outer ring, the bearing outer ring is composed of two annular rings and the two annular rings are mutually staggered and matched at the joint and riveted by a plurality of rivets, a bearing retainer is arranged between the bearing inner ring and the bearing outer ring, bearing rollers are arranged on both sides of the bearing retainer, the bearing rollers are all rollingly arranged between the bearing inner ring and the bearing outer ring, a V-shaped outwardly opening elastic holder is arranged on the outer periphery of the bearing retainer, and a raceway assembly is axially arranged on one side of the bearing outer ring close to the bearing inner ring. The bearing retainer is provided with the elastic holder, so that the bearing rollers are always close to the bearing outer ring, the accelerated wear is avoided, the raceway body is replaced and ground at the same time, the bearing can continue to be used, and the maintenance and replacement cost is low.

The invention belongs to the technical field of steelmaking and continuous casting, and particularly relates to a system and method for remotely controlling accident water through a continuous casting machine by applying PID. The system comprises a first connecting pipe, a machine cooling pump, an accident water tank, an accident water inlet pipe, an accident water return pipe, a second connecting pipe and a PID control unit. A water return port of the continuous casting machine is connected with one end of the machine cooling pump through a first connecting pipe, and the other end of the machine cooling pump is connected with a water inlet of the continuous casting machine through a second connecting pipe. The accident water tank is connected with the second connecting pipe through an accident water inlet pipe; the PID control unit comprises an accident water return valve control unit and a PIC control unit; the accident water return valve control unit is arranged on the accident water return pipe; the PIC control unit is connected with the first connecting pipe; and the accident water return valve control unit is connected with the PIC control unit. Based on the system and the method, the problems that a traditional accident water control method is large in error, insufficient in reliability, weak in anti-interference capacity and high in maintenance cost can be solved.

The present invention relates to the field of billet continuous casting production equipment, and provides a continuous casting machine translation control system and a continuous casting machine. The continuous casting machine translation control system includes a first hydraulic cylinder, a second hydraulic cylinder, a first hydraulic lock, a second hydraulic lock, a first rodless cavity oil supply pipeline, a second rodless cavity oil supply pipeline, a first rod cavity oil supply pipeline, a second rod cavity oil supply pipeline, a control system, a main control mechanism, and an auxiliary control mechanism. The control system is configured to control the main control mechanism to move the first hydraulic cylinder and the second hydraulic cylinder, and is configured to receive signals from a first position sensor and a second position sensor. When the signals indicate that the moving speeds of the two hydraulic cylinders are inconsistent, an instruction is sent to the auxiliary control mechanism to make the moving speeds of the two hydraulic cylinders consistent. The continuous casting machine includes the above-mentioned translation control system. The continuous casting machine translation control system provided by the present invention can improve the problem of the asynchronous moving speeds of the two hydraulic cylinders, and the continuous casting machine provided with the control system has good stability.