97results about "Counter-pressure devices" patented technology

The invention provides a miniature flexible rolling mill, and belongs to the technical field of rolling mill equipment production and machining. Comprising a supporting unit, an execution unit, an angle compensation unit, a heavy transmission unit and a driving unit, the angle compensation unit is arranged on one side of the execution unit, the heavy transmission unit is arranged on one side of the angle compensation unit, and the driving unit is arranged on one side of the heavy transmission unit. The execution unit, the angle compensation unit, the heavy transmission unit and the driving unit are all arranged above the supporting unit. Efficient and stable rolling operation is achieved, the angle compensation unit and the heavy transmission unit ensure the flexibility and the transmission efficiency of the roller under the complex working condition, and a motor and a speed reducer in the driving unit provide powerful power support. In addition, the rolling effect is optimized through a roller and a supporting structure in the execution unit, the performance and reliability of the rolling mill are improved, and the maintenance cost is reduced.

The present invention is provided with: a plurality of hydraulic cylinders including drive-side displacement cylinders (715C), (715D) and operation-side displacement cylinders (715A), (715B) configured so as to apply an axial force to an upper work roll (710); and a hydraulic circuit configured to supply hydraulic oil to the plurality of hydraulic cylinders so that the drive-side displacement cylinders (715C), (715D) and the operation-side displacement cylinders (715A), (715B) move in the axial direction, and maintain the position of the upper working roll (710) in the axial direction, the hydraulic circuit being configured to supply hydraulic oil to the plurality of hydraulic cylinders so that the drive-side displacement cylinders (715C), (715D) and the operation-side displacement cylinders (715A), (715B) move in the axial direction, after the position of the upper working roll (710) in the axial direction is maintained by the hydraulic circuit. When only one of the hydraulic cylinders of the drive-side displacement cylinders (715C, 715D) and the operation-side displacement cylinders (715A, 715B) applies an axial force to the upper work roll (710) due to an external force applied to the upper work roll (710), the other hydraulic cylinder moves in the opposite direction.

The invention discloses steel for a supporting roller and a preparation method of the steel, belongs to the technical field of preparation of steel for supporting rollers, and solves the problems that an existing preparation method of the steel for the supporting roller is long in production period, and high toughness of the interior cannot be ensured while high hardness of a roller surface is ensured. The preparation method comprises the following steps: thermally transferring a forged steel forge piece for the supporting roller into a heating furnace at 661-680 DEG C, and preserving heat; raising the temperature to 900-960 DEG C and keeping the temperature; air cooling: cooling the roller body to 400 + / -50 DEG C, and putting the roller body into a furnace with the temperature of 400 DEG C; reducing the furnace temperature to 300-350 DEG C and preserving heat; raising the temperature below a phase change point Ac1 and preserving heat; rapidly raising the temperature to 960-1000 DEG C and keeping the temperature; oil quenching: discharging oil when the surface temperature of the supporting roller reaches 200 + / -20 DEG C; keeping the temperature at 250-300 DEG C; raising the temperature to 550-630 DEG C and keeping the temperature; cooling to 400 + / -20 DEG C; and continuously cooling to 200 DEG C or below. The method is simple, and the prepared steel for the supporting roller can meet the technical requirements.

A rolling mill includes three or more rolling rolls aligned along a circumferential direction and arranged so each rotary shaft is skewed with respect to a pass line of a material to be rolled, wherein the material to be rolled made of a pipe or bar material passes between the rolling rolls while being rotated to undergo diameter reducing rolling. At least one rolling roll selected from the three or more rolling rolls is smaller in roll diameter than at least one other rolling roll. When at least one rolling roll having a relatively maximum roll diameter defined as a maximum diameter rolling roll and at least one rolling roll smaller in roll diameter than the maximum is defined as a small diameter rolling roll, the small diameter rolling roll has a roll diameter equal to or less than 90% of the roll diameter of the maximum diameter rolling roll.

To provide an electrode rolling device capable of reducing variation in thickness of an electrode sheet depending on the position in a width direction.SOLUTION: An electrode rolling device acquires the thickness Tc of a central portion 1C in a width direction, the thickness Twe of an end portion 1WE on a first side, the thickness Tde of an end portion 1DE on a second side, the thickness Twc of a first intermediate portion 1WC set between the central portion 1C and the end portion 1WE on the first side, and the thickness Tdc of a second intermediate portion 1DC set between the central portion 1C and the end portion 1DE on the second side for an electrode sheet 1. The electrode rolling device acquires the deviation ΔTwe between the thickness Tc and the thickness Twe, and the deviation ΔTwc between the thickness Tc and the thickness Twc, and also acquires the deviation ΔTde between the thickness Tc and the thickness Tde, and the deviation ΔTdc between the thickness Tc and the thickness Tdc, and performs control so as to reduce the larger one of the deviation ΔTwe and the deviation ΔTwc and the larger one of the deviation ΔTde and the deviation ΔTdc.SELECTED DRAWING: Figure 6

The utility model discloses a pole piece rolling mill which comprises two bases which are oppositely arranged front and back, an upper roller, a lower roller, an upper roller driving mechanism and a lower roller driving mechanism, the upper roller and the lower roller are oppositely arranged up and down, and a gap is formed between the roller surface of the upper roller and the roller surface of the lower roller. The two ends of the upper roller are rotatably arranged on two upper supports respectively, the two upper supports are movably arranged in the two bases respectively, and the two ends of the lower roller are rotatably arranged on two lower supports respectively. The two lower supports are movably arranged in the two bases correspondingly and located below the two upper supports correspondingly. The device further comprises two upper supporting rollers arranged in a bilateral symmetry mode, two lower supporting rollers arranged in a bilateral symmetry mode, an upper gap adjusting driving mechanism and a lower gap adjusting driving mechanism. According to the utility model, the quality of the pole piece is improved, meanwhile, the device can be suitable for thinning dry-method diaphragms with different thicknesses and sizes, the application range is wide, and the use requirements are met.

The invention discloses uniform-pressure silicon steel cold rolling equipment, and relates to the field of silicon steel cold rolling, the uniform-pressure silicon steel cold rolling equipment comprises a linearly through rack, two working rollers are distributed in the rack in parallel up and down, a gap for conducting silicon steel is formed between the two working rollers, two supporting rollers are symmetrically arranged on the far sides of the two working rollers, and the two supporting rollers are horizontally distributed at intervals; two parallel contact lines are arranged between the two supporting rollers and the working roller, symmetrical abutting force is applied to the working roller through the positions of the two contact lines, so that the working roller is positioned, it is guaranteed that the working roller has high rigidity, and the service life of the working roller is prolonged. And position deviation or self-deformation of the working roll is avoided, uniform pressure of the working roll is ensured, and the cold rolling quality of silicon steel is improved.

The invention discloses a hollow roller sleeve and a preparation method thereof, belongs to the technical field of preparation of hollow roller sleeves, and solves the problems that the high hardness of a roller surface cannot be ensured and the interior has relatively high hardness and toughness cannot be ensured in an existing preparation method of the hollow roller sleeve. The preparation method comprises the following steps: integrally tempering the hollow roller sleeve; the hollow roller sleeve is integrally preheated at the temperature of 300-350 DEG C; the hollow roller sleeve is transferred into a differential temperature furnace, the furnace temperature is rapidly increased to 1030-1080 DEG C, and the heating rate is larger than 800 DEG C / h; heat preservation is conducted at the temperature of 1030-1080 DEG C; and the furnace temperature is reduced to 950-1000 DEG C, and then tempering treatment is carried out after spray cooling is carried out on the surface of the roller body. The hollow roller sleeve prepared through the method is high in roller surface hardness, high in strength and good in wear resistance, and the inner wall of the hollow roller sleeve has certain hardness and strength and is excellent in toughness.

A processing roller for a rolling mill for thinning a sheet of an alkali metal or its alloy into a film is disclosed. The processing roller has a cylindrical central portion defining a central axis and having an outer surface defining a thinning surface, and first and second frusto-conical portions extending from first and second ends of the central portion. When the central axis is straight, the angle between the outer surface of the central portion and the outer surfaces of each of the first and second frusto-conical portions is less than 0.05 degrees. The width of the central portion is greater than the width of each of the first and second frusto-conical portions. The width of the central portion is less than the sum of the widths of the first and second portions. A rolling mill having two such processing rollers is also disclosed.

A roll press rolls each including an upper roll and a lower roll that are supported by a main bearing at both ends and rotate at a predetermined speed, upper and lower bending bearings that are disposed outside each of the main bearings and correct deflection of the press rolls by receiving a bending load, an upper reverse operation bending mechanism provided in the upper roll that operates with hydraulic oil, a lower reverse operation bending mechanism provided in the lower roll, and two upper reverse operation bending mechanisms and two lower reverse operation bending mechanisms being installed in the upper and lower bending bearings, respectively. Deflection occurring in the upper roll and the lower roll is corrected by causing the upper reverse operation bending mechanism or the lower reverse operation bending mechanism to generate downward power or upward power, respectively.

The invention relates to the technical field of rolling, in particular to a metal plate rolling device and a rolling process thereof.The metal plate rolling device comprises a base, two control boxes are fixedly connected to the top of the base, a plurality of rolling assemblies are arranged between the two control boxes, and each rolling assembly comprises two rolling rollers which are sequentially arranged in the vertical direction; the two ends of the rolling roller are fixedly connected with first connecting shafts correspondingly, the first connecting shafts are sleeved with lifting bases in a rotating mode, a plurality of first avoiding holes are formed in the inner walls of the two control boxes correspondingly, and the two ends of each first connecting shaft penetrate through the corresponding first avoiding holes correspondingly. A movable shaft is arranged between every two adjacent first connecting shafts, the first connecting shafts are rotationally sleeved with connecting plates, and every two adjacent connecting plates are rotationally connected with the corresponding movable shaft. And the distance between the two rolling rollers on each rolling assembly can be conveniently adjusted, the adjusting efficiency is improved, the downtime is shortened, and application and popularization are facilitated.

This invention relates to a method for producing support roll steel, belonging to the field of metallurgical industry, and solves the problems of high cost and severe shrinkage porosity in existing support roll steel. The method for producing support roll steel includes: smelting, deoxidizing, desulfurizing, and refining the support roll steel ingot raw material, adjusting the alloy composition to obtain a first portion of support roll steel molten steel, tapping the steel, vacuum casting, and solidifying to obtain a solidified billet shell and liquid steel inside the billet shell; smelting, deoxidizing, desulfurizing, and refining the support roll steel ingot raw material, adjusting the alloy composition to obtain a second portion of support roll steel molten steel, tapping the steel, mixing the second portion of support roll steel molten steel with the liquid steel inside the billet shell within the solidified billet shell of the first portion of support roll steel, vacuum casting, solidifying to obtain a complete support roll steel ingot, demolding, removing the sprue, forging, removing the riser, heat treating, and machining to obtain the support roll steel; the composition of the first portion of support roll steel and the second portion of support roll steel molten steel differs.

The utility model relates to the technical field of supporting rollers, and discloses a forged steel supporting roller convenient to disassemble and maintain, which comprises a base, the inner wall of the base is connected with a sliding mounting plate in a sliding manner, the inner wall of the base is fixedly provided with a guide rail, the outer wall of the base is fixedly provided with a motor I, and the motor I is fixedly provided with a motor II. A first double-end lead screw is fixedly mounted on an output shaft of the first motor, a supporting roller body is movably connected to the inner wall of the sliding mounting plate, a threaded rod is rotatably connected to the inner wall of the sliding mounting plate, and a limiting rod is slidably connected to the inner wall of the sliding mounting plate. A threaded rod is rotated to drive a threaded sleeve to move upwards, then the threaded sleeve drives a pressing piece at the bottom to move upwards, at the moment, the fixing relation of a supporting roller body disappears, a first motor is started to drive a first double-end lead screw to rotate, the first double-end lead screw drives two sliding mounting plates to move towards the two sides, and then the supporting roller body is fixed. The sliding mounting plate is separated from the supporting roller body, and the supporting roller body can be taken out at the moment.

The invention provides a D-shaped steel pipe rolling device which comprises a rolling frame, a plurality of driving assemblies and an auxiliary supporting assembly, a plurality of sets of rollers are arranged in the rolling frame, and each set of rollers comprises an upper roller and a lower roller. The supporting columns on the upper roller and the lower roller can be supported in an auxiliary mode through the auxiliary supporting assemblies, annular grooves in the surfaces of the supporting columns are supported, namely, the supporting columns are supported in the radial direction, the supporting columns are also supported in the axial direction, and therefore the top pressure, borne by the upper roller and the lower roller, of a steel pipe body is resisted; and the effect of the jacking force on the connecting points between the supporting columns and the rolling frame is reduced, then loss of the connecting positions between the rollers and the rolling frame is reduced, and the loss speed of the connecting positions between the rollers and the rolling frame can be reduced.

The utility model relates to the technical field of supporting rollers, and discloses a sectional flexible supporting roller mechanical property regulating structure which comprises an independent supporting roller, the inner side of the independent supporting roller is slidably connected with a shaft center, the inner side of the shaft center is provided with a pressure regulating mechanism, and the outer side of the independent supporting roller is provided with a limiting mechanism. Flexible sheets are arranged on the inner sides of the independent supporting rollers, the outer sides of the flexible sheets are attached to the inner sides of the independent supporting rollers, the limiting mechanisms comprise limiting plates, the limiting plates are fixedly connected to the outer sides of the independent supporting rollers, bidirectional threaded rods are rotationally connected to the inner sides of the limiting plates, and anti-skid wheels are fixedly connected to the middles of the peripheries of the bidirectional threaded rods. The anti-skid wheels drive the bidirectional threaded rods to rotate, so that the bidirectional threaded rods drive the movable plates to move through the threaded plates, the movable plates can drive the insertion rods to be inserted into the inner sides of the axes, the positions of the axes are limited, and when external equipment drives the axes, the axes can drive the independent supporting rollers to rotate through the insertion rods.

The invention relates to the technical field of profile rolling, and particularly discloses a flat-rolling ultrathin aluminum alloy profile rolling device which comprises rolling racks, and a profile pretreatment unit is fixedly arranged between the front faces of the two rolling racks through bolts; sectional material rolling units are symmetrically arranged on the upper portion and the lower portion between the two rolling racks, and auxiliary supporting assemblies are arranged on the two sectional material rolling units. Through the composite structure design of the working roller, the rolling quality is improved from three aspects: the flat roller and the convexity roller are adapted to the thickness control requirements of profiles with different widths; the nano ceramic coating strengthens the wear resistance of the roller surface; by means of the micro-nano rib and pit structure, on one hand, the contact area of the roller and the profile is reduced, the friction coefficient is reduced, drawing marks or wrinkles of the profile are avoided, and on the other hand, the pits are used for storing lubricating oil and containing aluminum skimmings to protect the surface of the profile. And meanwhile, the servo electric cylinder is matched with the adjusting frame, so that the distance between the rollers can be accurately adjusted to adapt to rolling of profiles with different thicknesses, and the rolling precision is guaranteed.

To ameliorate at least some of inconveniences present in the prior art.SOLUTION: Disclosed is a working roller for a rolling mill for forming a film by thinning a sheet of alkali metal or alloy thereof. The working roller has: a cylindrical center portion defining a central axis, the center portion having an outer surface defining a lamination surface; and first and second frustoconical portions extending from first and second ends of the center portion. When the central axis is straight, an angle between the outer surface of the center portion and an outer surface of each of the first and second frustoconical portions is less than 0.05 degrees. A width of the center portion is greater than a width of each of the first and second frustoconical portions. The width of the center portion is less than a sum of the widths of the first and second portions. A rolling mill having two such working rollers is also disclosed.SELECTED DRAWING: Figure 5

The invention provides a forging method for improving the steel ingot utilization rate of a supporting roller and the supporting roller, and relates to the technical field of forge piece forging, the forging method for improving the steel ingot utilization rate of the supporting roller comprises the following steps: forging for a first heating number: after a steel ingot blank is subjected to heat preservation for a first preset time at a first preset temperature, carrying out first overall drawing-out on the steel ingot blank; the steel ingot blank is subjected to heat preservation at a second preset temperature for a second preset duration, then the steel ingot blank is subjected to upsetting through the cooperative use of an upsetting cover plate with a blind hole and a bottoming type upsetting leakage disc, and then the upset steel ingot blank is subjected to second overall drawing-out; and the steel ingot blank is subjected to overall drawing-out and blanking after being subjected to heat preservation at the third preset temperature for a third preset duration. Compared with the prior art, the forging method for improving the utilization rate of the supporting roll steel ingot has the advantages that waste of blanks is reduced in the forging process of the supporting roll forge piece, and the utilization rate of the steel ingot is improved.

To provide laminated films of an alkali metal or an alloy thereof, and an apparatus for making the same.SOLUTION: A working roller for a rolling mill for laminating a sheet of an alkali metal or alloy thereof to a film is disclosed. The working roller has: a cylindrical center portion defining a central axis, and having an outer surface defining a lamination surface; and first and second frustoconical portions extending from first and second ends of the center portion, respectively. When the central axis is straight, an angle between the outer surface of the center portion and an outer surface of each of the first and second frustoconical portions is less than 0.05°. A width of the center portion is greater than a width of each of the first and second frustoconical portions. The width of the center portion is less than the sum of the widths of the first and second portions. A rolling mill having two such working rollers is also disclosed. A laminated sheet of an alkali metal or alloy thereof obtained by the working roller of the present technology is also disclosed.SELECTED DRAWING: Figure 2

The embodiment of the utility model provides a rolling mill and a battery production system. The rolling mill comprises a measuring mechanism and a roller mechanism. The roller mechanism comprises two supporting rollers and two working rollers, the two supporting rollers are arranged at intervals in the first direction, the two working rollers are arranged between the two supporting rollers in the first direction and arranged side by side in the first direction, and a gap allowing a plate to penetrate through is formed between the two working rollers. The two supporting rollers are used for abutting against the adjacent working rollers correspondingly, at least one of the two supporting rollers is provided with a flow channel structure allowing heat exchange media to flow, a liquid inlet flow path and a liquid outlet flow path, the liquid inlet flow path and the liquid outlet flow path communicate with the flow channel structure, the flow channel structure is located in the supporting rollers, and the area, corresponding to the flow channel structure, of the working rollers is a cooled area. The measuring mechanism is used for measuring the thickness of the plate pressed by the cooled area. The quality of rolled products can be improved.

The invention relates to the technical field of metal rolling machining, and discloses an integrated multi-mode roller system switchable ultra-thin strip precision rolling mill system which comprises a closed type common rack and a screw-down system fixedly connected to the closed type common rack. The multi-mode detachable roller system mechanism is matched with the assembly space in the closed type common rack, the multi-mode detachable roller system mechanism comprises a six-roller roller system mechanism, a twelve-roller roller system mechanism and a twenty-roller roller system mechanism, and the screw-down system is used for adjusting the rolling thickness of the roller system mechanisms; the shared transmission mechanism comprises a motor, a gear seat and a transmission shaft, one end of the transmission shaft is in transmission connection with the motor through the gear seat, and the other end of the transmission shaft can be in transmission connection with any one of the six-roller system mechanism, the twelve-roller system mechanism and the twenty-roller system mechanism. Covering type rolling from thick strips to ultra-thin strips is achieved, the modular production requirement for small-batch customization of the ultra-thin strips is met, and the rack utilization rate and the equipment utilization rate are remarkably increased.

The application provides a steel strip rolling mill and a steel strip rolling method. The steel strip rolling mill comprises a rack, a work roller assembly and a pressure regulating roller assembly arranged on the rack. The work roller assembly comprises an upper work roller and a lower work roller which can rotate relative to the rack, and a rolling channel is formed between the upper work roller and the lower work roller. The pressure regulating roller assembly comprises a first pressure regulating roller arranged above the upper work roller, and the first pressure regulating roller is provided with a first roller surface at one end close to an operation side, and the first roller surface is arranged tangentially with a work roller surface of the upper work roller. By arranging the pressure regulating roller assembly, the first roller surface of the first pressure regulating roller close to the operation side is arranged to press the upper work roller, and the rolling pressure of the upper work roller away from the driving side can overcome the reaction force generated in the process of rolling the steel strip, so that the rolling channel of the work roller assembly can be kept stable in the process of rolling the steel strip, and the deviation of the transverse thickness of the steel strip can be avoided, so that the quality of the steel strip can be ensured and the rolling efficiency can be improved.

A lamination lubricant dispensing unit is disclosed for lubricating the work rolls of a rolling mill used to laminate sheets of alkali metals or alkali metal alloys into films. The lubricant dispensing unit comprises: a dispensing unit body defining a laterally extending wall; a first sidewall and a second sidewall extending forward from the laterally extending wall; and a protrusion connected to a lower end of the wall. The protrusion extends forward from the laterally extending wall and extends between the sidewalls. The protrusion and the wall define a recess having an open side. The protrusion has a leading edge for abutting against the lamination surface of the work roll. At least a portion of the protrusion is an angled portion extending upward and backward from the leading edge toward the laterally extending wall. The dispensing unit body defines at least one lubricant channel having an outlet defined in the laterally extending wall.

The application discloses a rolling mill roller system structure and a rolling method for rolling magnesium alloy thin strips, which comprises upper supporting working rollers, lower supporting working rollers, upper working rollers, lower working rollers, front machine following steering rollers, rear machine following steering rollers, an uncoiler and a coiler, and magnesium alloy thin strips on the uncoiler pass through the upper supporting working rollers and the upper working rollers, the rear machine following steering rollers, the space between the upper working rollers and the lower working rollers, the front machine following steering rollers, the space between the lower supporting working rollers and the lower working rollers and are wound on the coiler in sequence in a rolling direction. The rolling mill roller system structure realizes one-time unwinding and winding of the magnesium alloy thin strips on a single-stand production line, three-pass rolling can be carried out in the unwinding and winding process, the number of heating and temperature compensation can be reduced, the four-drive asymmetric roller system body structure is adopted, the special requirements of the special lattice structure of the magnesium alloy thin strips on rolling deformation can be met, the anisotropy of the product can be reduced, and the product performance can be further improved.

The invention discloses a segmented combined bushing type large wide and thick plate supporting roller, and belongs to the technical field of large supporting rollers. The large wide and thick plate supporting roller comprises a roller shaft and a roller sleeve arranged on the roller shaft in a sleeving mode, the outer surface of the roller shaft and an inner hole of the roller sleeve are each of a taper structure with the outer side diameter larger than the inner side diameter, additional axial force pointing to the middle of the roller shaft is formed after hot charging, and the interference magnitude of the outer side of the roller sleeve is smaller than that of the inner side of the roller sleeve; grooves are formed in the outer surface of the roller shaft and the inner surface of the roller sleeve, and the grooves of the roller shaft and the roller sleeve are matched to form an oil storage cavity; a wireless pressure test valve mounting hole communicated with the oil storage cavity is formed between the contact surfaces of the roller sleeve and the roller shaft, a wireless pressure test valve is mounted in the wireless pressure test valve mounting hole, and the wireless pressure test valve remotely displays the pressure of the oil storage cavity through the Internet of Things technology; the roller sleeve comprises a left side roller sleeve body, a middle roller sleeve body and a right side roller sleeve body which are sequentially arranged in the axial direction of the roller shaft and are inlaid with the roller shaft through overall hot charging.

This invention provides a method for setting the roll shape of a finishing mill without a roll shifting device, comprising: when changing support rolls in any finishing mill in the finishing mill production line, configuring one standby support roll and multiple standby work rolls for the finishing mill; determining the maximum and minimum converted roll diameter values ​​and the target converted roll diameter value based on the theoretically designed maximum and minimum support roll diameters, maximum and minimum work roll diameters, and the roll diameters of the standby support roll and standby work rolls; calculating the target work roll shape corresponding to the standby work roll; grinding the standby work roll according to the target work roll shape corresponding to the standby work roll; during the operation of the standby support roll, rotating the multiple standby work rolls at preset time intervals, and re-grinding the standby work rolls rotated off the finishing mill during the operation of the standby support roll according to the target work roll shape corresponding to the multiple standby work rolls, so as to continue to rotate and use them during the operation of the support roll.

The utility model discloses an intermediate roll shifting device for a six-roll mill, which is characterized in that two ends of an upper intermediate roll and a lower intermediate roll are respectively and fixedly arranged in an intermediate roll bearing seat assembly on a rack, the intermediate roll shifting device further comprises two intermediate roll shifting mechanisms, and the upper intermediate roll and the lower intermediate roll are respectively driven by the intermediate roll shifting mechanisms; each middle roller shifting mechanism comprises a roller shifting driving device, the two ends of each roller shifting driving device are connected with locking pin blocks respectively, and the two locking pin blocks are detachably connected with the corresponding middle roller bearing seat assemblies respectively. According to the intermediate roll shifting device for the six-roll mill, the intermediate roll shifting action can be completed only by driving the intermediate roll assembly through the intermediate roll shifting mechanism, the rolled plate shape control is guaranteed, and the problems that an existing structure is complex, the operation requirement precision is high, and the leakage point risk exists are solved.

The invention discloses a method for producing a pickled plate steel coil through a five-rack continuous rolling mill, and belongs to the technical field of steel plate production. The method specifically comprises the steps that (1) the roller distance between working roller sets of first to fourth rolling mills is adjusted to be larger than the thickness of a pickled plate; 2) shielding sensor signals of the first to fourth rolling mills, and closing emulsion nozzles of the first rolling mill, the second rolling mill, the third rolling mill and the fourth rolling mill; (3) replacing a working roller set of a fifth rolling mill with a roller set with the grinding convexity of 0 + / -5 microns; the method for producing the pickled plate steel coil through the five-rack continuous rolling mill comprises the steps of (1) adjusting the screw-down rate of a working roller set of the fifth rolling mill, (2) adjusting the screw-down rate of a working roller set of the fifth rolling mill to be smaller, (3) adjusting the liquid outlet rate of an emulsion nozzle of the fifth rolling mill to be smaller, and (4) shielding a thickness measuring signal of a thickness measuring instrument of a steel outlet of the fifth rolling mill to enable an existing five-rack continuous rolling mill to meet the requirement for producing the pickled plate steel coil.

The utility model relates to the field of hot rolling machining, in particular to a rolling mill working roll balance cylinder sectional type flange connecting device which comprises a flange short connector, one side of the flange short connector is sleeved with a halving flange, and the halving flange comprises an upper halving flange part and a lower halving flange part; the side, away from the flange short connector, of the halving flange is connected with a rolling mill balance cylinder. Flange oil leakage accidents are greatly reduced, the time for disassembling the flange and the rubber pipe is shortened, working efficiency is improved, flange bolts can be prevented from being blocked by thick and hard oxide layers left on the side face of a rolling mill, production efficiency is improved, spare part loss is reduced, and production cost is reduced. The rubber tube replacement efficiency is improved, and the impact resistance and vibration resistance of the flange bolt and the flange during rolling are enhanced, so that the hydraulic cylinder has the advantages that the operation is stable, the maintenance is convenient, accidents are reduced, a large amount of energy and cost are saved, the field production requirement is met, and the hydraulic cylinder is also applicable to rolling mill balance control connection systems in other industries.