24results about How to "Improve rolling quality" patented technology

The invention relates to the technical field of copper plate strip machining, and provides an advanced copper plate strip continuous rolling technology which comprises the steps that S1, a copper ingot with the copper content of 99.9% or above is selected, and raw materials are obtained through saw cutting and surface polishing; s2, the treated copper ingot is heated in a heating furnace, and the internal temperature uniformity of the copper ingot is guaranteed; s3, a roughing mill is used for rolling the heated copper ingot, and rough rolling is conducted for 2-3 passes; s4, the copper strip subjected to rough rolling enters an intermediate rolling mill, and intermediate rolling passes are 3-5 times; s5, the copper plate strip subjected to intermediate rolling enters a finishing mill, and the finishing pass is 3-4 times; and S6, on-line cooling is conducted, specifically, the copper plate strip obtained after finish rolling enters an on-line cooling system immediately. Through early-stage accurate saw cutting and polishing treatment, the initial quality of the copper plate strip is guaranteed, smooth proceeding of subsequent rolling procedures is guaranteed, the multi-pass continuous rolling process of rough rolling, intermediate rolling and finish rolling is combined with online cooling, and through strict parameter control, the production efficiency is improved, the energy consumption is effectively reduced, and the production cost is reduced.

The invention discloses steel for a bearing outer ring of a super-power wind generating set and a manufacturing process of the steel, and belongs to the technical field of wind power equipment manufacturing. The invention discloses steel for a bearing outer ring of a super-power wind generating set. The steel comprises the following components in percentage by mass: 0.48%-0.52% of C, 0.28%-0.33% of Si, 0.62%-0.66% of Mn, 0.97%-1.04% of Cr, 0.16%-0.21% of Mo, 0.005%-0.01% of Ti, 0.003%-0.008% of Zr, 0.0007%-0.001% of Ba and the balance of Fe. According to the method, alloy elements such as Ti, Zr and Ba are used for refining the sizes of grains and inclusions, meanwhile, the crushing degree and uniform distribution of the blank tissue and the inclusions are enhanced through extrusion and torsion, a fine and uniform metal flow line can be obtained after ring rolling, and the mechanical property of a forged piece is improved.

The utility model relates to the technical field of rolling mills, in particular to a feeding device of a rolling mill. The device comprises a bottom frame, a mounting frame, a clamping frame, a lifting frame, a spring b, a lower pressing roller, a connecting rod, a clamping table, a clamping roller, a roller c, a lead screw c, a bevel gear c, a bevel gear d, a motor c and an auxiliary conveying assembly. The mounting frame and the clamping frame are both arranged on the bottom frame, the auxiliary conveying assembly is arranged on the mounting frame, the motor c is arranged on the clamping frame and is in driving connection with the bevel gear d, the lead screw c is vertically and rotatably arranged on the clamping frame, the bevel gear c is arranged on the lead screw c, and the bevel gear d is in meshing connection with the bevel gear c. One clamping table is arranged between the two connecting rods, one clamping table is arranged between the two rollers c, the two clamping tables are opposite, and the two clamping rollers are arranged on the two clamping tables in a relatively inclined mode. According to the utility model, the conveying of different sections of fabrics can be realized through the lower pressing roller, the roller c and the two pairs of clamping rollers on the clamping frame.

The invention discloses a method for controlling the C-shaped warping defect of eighteen-roller single-stand high-strength steel, and belongs to the technical field of solving the C-shaped warping defect of a steel plate. The method comprises the following steps: carrying out hot rolling, acid pickling and eighteen-roller reversible rolling on a descaled plate blank of a casting blank, the roller diameter difference between the upper roller diameter and the lower roller diameter of the middle roller of the eighteen-roller reversible rolling mill ranges from 2 mm to 5.5 mm, and the lower roller diameter is larger than the upper roller diameter. According to the method for controlling the C-shaped warping defect of the eighteen-roller single-stand high-strength steel, the roughness of the working rollers, the roller diameter difference of the middle rollers, the rolling force of the rolling mill and the strip steel tension are strictly controlled, the plate shape and stress problems in the rolling process are effectively controlled, and finally the warping height is controlled to be within the range of + / -(0.35-0.5) mm / m.

The invention relates to metal plate rolling equipment which comprises a left fixed roller and a right fixed roller which are symmetrically arranged, a multi-layer rolling structure is adopted, through the synergistic effect of the left fixed roller, the right fixed roller and a middle adjusting roller and in combination with an upper left roller, a lower left roller, an upper right roller and a lower right roller which are arranged up and down, precise step-by-step rolling on a metal plate is achieved, and the rolling precision of the metal plate is improved. Through the dynamic pressure and curvature adjusting system, the pressure distribution and the contact state between the upper roller and the lower roller can be adjusted in real time according to the material, the thickness and the process requirements of a to-be-machined plate through the upper adjusting roller, the lower adjusting roller, the matched upper adjusting mechanism and the matched lower adjusting mechanism, and the problem of insufficient rolling caused by overpressure fracture or underpressure is effectively solved; the left detection heating mechanism and the right detection heating mechanism integrate an electromagnetic ultrasonic nondestructive testing technology and an induction heating technology, so that nondestructive testing of internal defects of a plate can be achieved in the rolling process, and local or overall efficient heating can be conducted according to needs.

The utility model relates to the technical field of prepreg rolling, in particular to prepreg rolling equipment which comprises a frame body, a rolling assembly is fixedly connected to the middle of the surface of the frame body, an adjusting assembly is fixedly connected to the middle of the top end of the frame body, and a pressing assembly is fixedly connected to the bottom end of the adjusting assembly. Extension rods are fixedly connected to the two sides of the top end of the downward pressing assembly. Through the arrangement of the adjusting assembly, the pressing assembly and the rolling assembly, a threaded sleeve on the adjusting frame can be rotated according to prepreg during use, a threaded column drives the connecting frame to move downwards under the cooperation of a hollow rod and an extension rod, and an upper roller shaft on the connecting frame is matched with a lower roller shaft to be tightly attached to the prepreg; and then a first servo motor in a first fixing frame is started through an external power source, a first transmission rod drives a lower roller shaft at one end of a connecting rod to rotate to be matched with two upper roller shafts to roll the prepreg, and the effect of improving the rolling quality of the device on the prepreg of different specifications is achieved.

This utility model relates to a turbid circulating water pressurization system for a finishing mill, belonging to the field of mechanical equipment technology. It includes a main inlet pipe, the outlet of which is connected to the cooling circuit of the finishing mill. A centrifugal pump is installed on the main inlet pipe, driven by a variable frequency motor. The centrifugal pump pressurizes the turbid circulating water and pumps it into the cooling circuit of the finishing mill. An inlet butterfly valve, an inlet pressure gauge, and an inlet pressure sensor are installed on the inlet side of the main inlet pipe, and an outlet butterfly valve, an outlet pressure gauge, and an outlet pressure sensor are installed on the outlet side. The inlet pressure sensor, outlet pressure sensor, and variable frequency motor are connected to a PLC control cabinet. The inlet and outlet pressure sensors detect the water pressure at the inlet and outlet of the main inlet pipe and feed it back to the PLC control cabinet. Upon receiving the signal, the PLC control cabinet adjusts the speed of the variable frequency motor. This application can locally increase the turbid circulating water supply pressure of the finishing mill rolls, improve the cooling effect of the roll rings, and ensure the surface hardness of the roll rings.

The invention discloses an automatic measurement and optimization method for impact prompt drop of a seamless steel tube hot continuous rolling mill, and the method comprises the steps: carrying out a plurality of rolling tests for a steel tube of one specification, reading the actual speed of a motor from a steel biting point to a set ending time point at a preset time interval during each rolling test, and calculating the actual speed of the motor; the minimum actual speed is selected; calculating a speed average value of the plurality of minimum actual speeds and a difference value between the speed average value and a given process speed of the motor; and taking the difference value as a speed drop compensation value corresponding to the steel pipe of the current specification. The optimization method comprises the steps of determining a speed drop compensation value corresponding to a steel pipe according to the specification of the steel pipe; before steel biting, the speed obtained after the given process speed is superposed with the speed drop compensation value serves as the motor running speed, and after steel biting, the given process speed serves as the motor running speed. Correlation between the steel pipe specification information and the prompt drop compensation value can be achieved, accurate compensation during rolling of steel pipes of different specifications is guaranteed, and the rolling quality is improved.

The invention discloses a method for rolling 170 * 190 mm bars through a cogging mill pass system, and relates to the technical field of cogging mills. According to the method for rolling the bar with the size of 170 * 190 mm through a cogging mill pass system, a cogging mill rolling system comprises a large manipulator opening degree, a small manipulator opening degree and cogging mill rolling reduction, and a 430 * 350 mm raw material section is rolled into a section with the size of 170 * 190 mm through nine passes; turning steel in front of a first pass machine, wherein the K1 rolling reduction is 75-95 mm; turning steel after a second pass machine, wherein the rolling reduction of K1 is 50-70mm; turning steel in front of a third pass machine, wherein the rolling reduction of K2 is 60-80 mm; turning steel after a fourth pass machine, wherein the rolling reduction of K2 is 70-90 mm; turning steel in front of the machine in the fifth pass, wherein the rolling reduction of K3 is 55-75 mm; the steel is not turned over in the sixth pass, and the rolling reduction of K3 is 50-70 mm; turning steel in front of the machine in the seventh pass, wherein the rolling reduction of K4 is 55-75 mm; steel turning is avoided in the eighth pass, and the rolling reduction of K3 is 35-55 mm; and turning steel in front of the ninth pass machine, wherein the rolling reduction of K5 is 50-70 mm.

The invention relates to a duplex stainless steel ER2594 welding material and a preparation method thereof, and the welding material is prepared from the following raw materials in percentage by weight: less than or equal to 0.018% of C; 0.50% to 0.60% of Si; 0.60% to 0.80% of Mn; less than or equal to 0.020% of P; s: < = 0.002%; ni: 8.55 to 8.70%; cr: 25.80% to 25.95%; 3.80% to 3.90% of Mo; 0.22% to 0.24% of N; cu: less than or equal to 0.3%; b: 0.0015% to 0.0030% of the total weight of the raw The balance is iron and inevitable impurities; the preparation method comprises the steps that low-P, low-Pb, low-Sn, low-As, low-Sb and low-Bi waste stainless steel is selected, the waste stainless steel is sequentially subjected to smelting, die casting, two-fire cogging and blank solid solution, intermediate billet coping and cogging, intermediate billet rolling and wire rod surface treatment, and the welding material is obtained. The comprehensive performance of the welding material is improved, a wire product without surface defects and core precipitation can be produced in a high-speed wire continuous rolling unit, the yield can reach 85% or above, the surface of an intermediate blank is free of precipitation, it is guaranteed that cracking caused by grinding is avoided in the grinding process, and remarkable economic benefits and environmental protection benefits are achieved.

The application relates to a printed matter cutting and separating device, and belongs to the technical field of packaging material processing equipment. The cutting and separating structure comprises a cutting assembly, a separating assembly, a winding assembly and a rack. The cutting assembly is arranged at one end of the rack. The cutting assembly comprises an auxiliary roller, a cutting roller, a cutting motor and a traction mechanism. The auxiliary roller is rotationally arranged at one end of the rack. The traction mechanism is arranged on the rack and located at one side of the auxiliary roller. The cutting roller is rotationally arranged on the rack and located between the auxiliary roller and the traction mechanism. A plurality of cutting knives are arranged on the cutting roller. The separating assembly is arranged at the other end of the rack. The winding assembly is arranged on the rack and located above the separating assembly. The working end of the cutting motor is arranged on the cutting roller. The cutting motor provides power for the rotation of the cutting roller. The application has the technical effects of shunting, guiding, preventing deviation and winding.

The invention provides an intelligent regulation and control method and system for cotton processing quality. The method comprises the following steps: S1, acquiring collected cotton impurity rate data, moisture regain data, impurity grain number and rolling quality grade; s2, presetting a cotton impurity rate standard value, a moisture regain standard value, an impurity grain number standard value and a rolling quality grade standard value; s3, respectively preprocessing the cotton impurity rate data, the moisture regain data, the number of impurity-containing grains and the rolling quality grade, and S4, taking the preprocessed cotton impurity rate data, moisture regain data, the number of impurity-containing grains and the rolling quality grade as input quantities, making a decision through a cotton rolling quality decision model, and outputting the frequency of a main cotton ginning motor and the frequency of a cotton ginning and feeding motor; and S5, performing regulation and control by utilizing the frequency of the cotton ginning main motor and the frequency of the cotton ginning and feeding motor output by the cotton ginning quality decision model. According to the invention, intelligent decision-making of cotton rolling is realized through the cotton rolling quality decision-making model, and the cotton rolling quality is effectively improved.

The invention relates to a method for preventing and solving a camber of a steel plate, which comprises the following steps: before rolling the steel plate, judging the camber direction according to the head bending direction of the steel plate; and in the steel plate rolling process, the roll bending force of a rolling pass is switched to a balance mode, meanwhile, the roll gap is adjusted in real time according to the judged direction of the camber, and the adjusting force is controlled to range from 0.05 mm to 0.1 mm. The direction of the camber is rapidly judged in the rolling process of the steel plate, the rolling roll bending force is switched into the balance mode, meanwhile, the roll gap of the roll is adjusted in real time according to the direction of the camber obtained through judgment, the camber phenomenon occurring in the rolling process of the steel plate is avoided, and the rolling quality and the product yield of the steel plate are improved.

The present invention belongs to the technical field of cloth rolling, and discloses a cloth rolling machine, including a frame, a support roller and a driving roller rotatably connected to the frame, and a winding roller for winding cloth, the frame is provided with a winding device for winding cloth, the winding device includes a support frame, a push rod, a driving assembly for driving the push rod to move, an auxiliary wheel and an extrusion wheel, the support frame is vertically slidably connected to the frame, the push rod is connected to the support frame and multiple auxiliary wheels are evenly arranged in a one-to-one interval manner, the auxiliary wheel is rotatably connected to the bottom of the push rod, the driving assembly can drive the push rod to move so that the auxiliary wheel abuts against the winding roller, the extrusion wheel is arranged at the bottom of the support frame, and the extrusion wheel can abut against the cloth roll; multiple baffles for guiding the end of the cloth are arranged below the winding roller. The present invention has the effect of ensuring the safety of the staff and improving the rolling quality.

The utility model relates to the field of roller equipment, in particular to a roller device with a vibration function, which comprises a rack, two groups of first rollers are rotatably connected on the inner side wall of the rack, two second rollers are rotatably connected in the middle of the rack, and a plurality of eccentric wheels are sleeved on the outer surfaces of the second rollers. First servo motors are fixedly arranged on the side walls, close to the second rollers, of the rack, and roller necks are fixedly arranged at the two ends of the second rollers; compared with a traditional roller device, the rotating stability of the second roller is improved through cooperation of the second roller, the first servo motor, the roller neck and the shaft head, the rotating stability of the eccentric wheel is improved through cooperation of the first notch, the eccentric wheel and the through groove, and the rotating stability of the eccentric wheel is improved through cooperation of the second roller, the eccentric wheel and the supporting table. The eccentric wheel can be driven to generate eccentric rotation, so that the eccentric wheel impacts and rolls a plate under the action of inertia and gravity, the plate rolling strength is increased, and the plate rolling quality is improved.

The utility model belongs to the field of rolling technology, specifically is a kind of export sliding guide adjustment structure, including guide box;The guide box top is rigidly connected with stepper motor;Stepper motor output end is rigidly connected with rotating rod;Rotating rod both ends are rotatably connected with connecting rod;Connecting rod end is rotatably connected with support;The support one side is rigidly connected with wheel carrier;Wheel carrier both ends are slidably connected with slide rail;Wheel carrier bottom is rotatably connected with a group of guide wheels;The guide wheel bottom is rotatably connected with sliding block;A group of sliding grooves are arranged in the guide box top;The spacing between multiple groups of guide wheels can be adjusted by the rotation of rotating rod and related components driven by stepper motor, to adapt to the rolling conveying needs of different diameters, and multiple groups of guide wheels form continuous guide channel, apply uniform constraint to rolling, reduce deviation or shaking of rolling in conveying process, and its along straight line enters next rolling process, improves rolling precision and product quality.

The utility model discloses a kind of anti-deviation steel strip rolling device, it is related to steel strip rolling technical field.The utility model includes bottom box, the bottom box top side is fixedly connected with rolling frame, the rolling frame inside is fixedly connected with bottom roll, the bottom roll rear side is fixedly connected with drive box, the rolling frame inside is threadedly connected with adjusting lever, the adjusting lever bottom is movably connected with top roll by bearing.The utility model is designed by anti-deviation roller of conical body shape, when steel strip deviates, its inclined plane is contacted with steel strip edge, because the linear velocity gradient of roll surface changes along axial direction and forms asymmetric lateral friction force, restoring force pointing to rolling center is generated, drive steel strip automatic return normality.Anti-deviation roller is driven by second driving motor, keeps same direction rotation, avoids shear stress caused by reverse rotation, reduces steel strip edge scratch, indentation and edge curl risk, significantly improves rolling precision and product quality.

The invention belongs to the technical field of cloth rolling, and discloses a cloth rolling machine which comprises a rack, a supporting roller, a driving roller and a winding roller, the supporting roller and the driving roller are rotationally connected to the rack, the winding roller is used for winding cloth, and a rolling device used for winding the cloth is arranged on the rack. The rolling device comprises a supporting frame, push rods, a driving assembly used for driving the push rods to move, auxiliary wheels and extrusion wheels, the supporting frame is vertically connected to the rack in a sliding mode, the push rods are connected with the supporting frame and evenly arranged at intervals one by one, and the auxiliary wheels are rotationally connected to the bottoms of the push rods; the driving assembly can drive the push rod to move so that the auxiliary wheel can abut against the winding roller, and the extrusion wheel is arranged at the bottom of the supporting frame and can abut against the cloth roll. A plurality of blocking pieces used for guiding the ends of the cloth are arranged below the wind-up roller. The winding device has the effects of ensuring the safety of workers and improving the winding quality.

The limiting device comprises a base plate installed on a hot rolling mill body, a sliding groove is formed in the base plate, a two-way lead screw is rotationally connected into the sliding groove, connecting blocks are connected to two sections of rod bodies, opposite in thread turning direction, of the two-way lead screw in a threaded mode, and the connecting blocks are slidably connected into the sliding groove. A limiting plate for limiting the steel plate is arranged on the connecting block, and an operation assembly for driving the bidirectional lead screw to rotate is arranged on the base plate. The effect of improving the rolling quality of the hot mill is achieved.

The application discloses an abnormal vibration detection method, device, equipment and medium, comprising: obtaining historical running data of a target rolling mill, the historical running data comprising vibration measurement data, rolling piece plate shape data, rolling piece production data and rolling process data corresponding in time sequence; constructing a training sample set and a test sample set according to the historical running data; training a preset prediction model according to the training sample set and the test sample set to obtain a target prediction model; obtaining real-time running data of a rolling mill to be detected, and inputting the real-time running data into the target prediction model to determine whether the rolling mill to be detected has abnormal vibration. The application can find the best speed reduction window before the abnormal vibration causes great damage to the rolling mill or the rolling piece, and thus the rolling mill can be controlled to reduce the speed in time, the occurrence probability of abnormal vibration is reduced, the rolling quality of the rolling piece is improved, and the service life of the rolling mill is prolonged to a certain extent.

The utility model relates to the field of steel rolling, discloses a roller cooling mechanism for steel rolling, and solves the problems that the existence of impurities can interfere with the full contact between a cooling medium and the surface of a roller, hinder heat transfer, reduce the cooling efficiency and further influence the performance of the roller and the rolling quality of the steel. A roller cooling mechanism for steel rolling comprises a base, a first supporting plate fixedly connected to the upper portion of the base and a roller arranged on the inner side of the first supporting plate, and a rotating mechanism is arranged, so that when rotating, the rotating mechanism drives a scraping plate to move transversely, and then scraping is conducted on the scraping plate. And the scraping plate is always kept to clean in front, and the water spraying head is always kept to spray cooling liquid behind, so that the cooling liquid can be better contacted with the roller for heat exchange, the cooling effect is improved, and the rolling quality of steel is improved.

The invention discloses a device for preventing a feeding metal plate of a cotton gin from skewing, and relates to the technical field of textile machinery, the device comprises a rolling mill main body of a rectangular frame structure, and the axis of the outer wall of the upper end of the rolling mill main body is rotationally connected with a working roller which is used for directly making contact with a metal material and applying pressure to achieve metal calendering; the outer walls of the two sides of the rolling mill body are in transmission connection with chain wheels used for transmitting power to the working rollers, the bottom end of the rolling mill body is fixedly connected with a rolling mill frame used for supporting the whole rolling mill body structure, and the outer walls of the two sides of the supporting rollers are provided with tail end centering clamping mechanisms. The top ends of the outer walls of the two sides of the working roller are provided with line carving texture mechanisms, the lower ends of the outer walls of the two sides of the rolling machine body are provided with resistance bending resisting mechanisms, a right barrier column and a line alignment pen are matched with each other, a tail end centering clamping mechanism can be accurately aligned to a plate, position deviation in the rolling process is reduced, and the rolling efficiency is improved. And the centering of the plate between the working rollers is ensured.

The utility model relates to a tab flattening mechanism for a winding machine, which comprises a flattening guide plate, the flattening guide plate comprises a guide plate and an arc-shaped flattening plate which are connected with each other, the arc-shaped flattening plate is provided with a concave flattening cambered surface, and the joint of the surface of the guide plate and the flattening cambered surface is in smooth transition; the translation steering mechanism is connected with the smoothing guide plate, and the translation steering mechanism can drive the arc-shaped smoothing plate of the smoothing guide plate to translate and turn over relative to a winding needle of the winding machine. According to the tab flattening mechanism, when the winding needle winds a pole piece at a high speed, the arc-shaped flattening plates of the flattening guide plates partially cover the periphery of the winding core and are arranged at intervals, so that the tabs generating centrifugal force abut against the flattening arc surfaces of the arc-shaped flattening plates. And the smooth cambered surfaces apply force to the outer surfaces of the tabs layer by layer, so that folding and damage of the tabs are effectively reduced, and the rolling quality of the roll core is improved.

The utility model provides graphene cotton coiling equipment, and belongs to the technical field of coiling equipment. The rack is hollow, the middle of the rack is concave downwards to form a connecting area, and the two ends of the rack are provided with a first mounting area and a second mounting area respectively. A cloth inlet is formed in the side face of the first installation area, and a plurality of cloth guide rollers and a dust collection box are arranged in the first installation area. The cloth guide roller is used for guiding the fabric; a dust collecting pump is arranged in the dust collecting box, and the top of the dust collecting box communicates with a dust collecting cover arranged in the first mounting area through a dust collecting pipe; a dust collection air opening is formed in the side, facing the fabric, of the dust collection cover. According to the rolling equipment, the impurity removing mechanism is arranged before rolling, impurities on the surface of the graphene cotton are sucked into the dust collecting box through the dust collecting cover under the action of the dust collecting pump in the dust collecting box, it is guaranteed that the surface of the graphene cotton is clean and free of impurities, and the rolling quality is improved.