406results about "Rolling equipment maintainence" patented technology

The invention relates to the technical field of rolling mills, in particular to alloy plate rolling forming equipment which comprises a rack, two sets of rolling structures which are symmetrically arranged up and down are rotatably installed on the rack, each rolling structure comprises two adjusting discs arranged in the rack, and connecting shafts are rotatably arranged on the sides, away from each other, of the two adjusting discs in a penetrating mode; the end, away from the adjusting disc, of the connecting shaft is rotationally connected with the rack, the middle section of the connecting shaft is fixedly sleeved with a center gear, and when the roller contour measuring instrument detects that the roller used for rolling the alloy plate is excessively abraded, a user can pull out the pin shaft used for fixing the adjusting disc and then rotate the adjusting disc by 180 degrees, so that the roller contour measuring instrument can be used for rolling the alloy plate. By means of the structure, the position of the excessively-abraded roller and the position of another standby roller on the adjusting disc are changed, then the adjusting disc is fixed through the pin shaft again, the alloy plate can be rolled immediately, the rollers do not need to be replaced immediately, a large amount of time is saved, and therefore the rolling efficiency of the alloy plate is greatly improved.

The present invention relates to the technical field of rolling mills, and in particular to a cold rolling mill for improving the surface finish of cold-rolled plates. The cold rolling mill comprises a frame, an upper rolling mechanism and a lower rolling mechanism coordinated with the upper rolling mechanism, wherein the upper rolling mechanism and the lower rolling mechanism are arranged in the frame, and a cold rolling space is formed between the upper rolling mechanism and the lower rolling mechanism; the upper rolling mechanism comprises a lifting drive part, an upper driving assembly, two upper rotating seats and a plurality of upper rollers; the lower rolling mechanism comprises a lower driving assembly, two lower rotating seats and a plurality of lower rollers. Through the design of the upper rolling mechanism and the lower rolling mechanism, the upper rollers and the lower rollers can be replaced, and different upper rollers and lower rollers can be switched according to different cold-rolled plate rolling sizes, thereby eliminating the influence of plate road marks remaining on the upper rollers and the lower rollers of cold-rolled plates of different sizes, avoiding the plate road marks on the rollers from being transferred to the surface of the cold-rolled plates, and making the surface finish of the cold-rolled plates reach Ra≤0.8μm.

The invention discloses an intelligent early warning system for stainless steel cold rolling pipeline butterfly valves, and relates to the technical field of cold rolling production process monitoring, the system comprises a filtering tank, a plurality of oil outlet butterfly valves, a liquid level detection unit and a control module, the liquid level detection unit is arranged in the filtering tank and is used for collecting liquid level data of rolling oil in real time; the control module is used for calculating a speed curve of the liquid level changing along with time based on the liquid level data, comparing the liquid level descending speed with a preset speed threshold value so as to judge the operation state of the multiple oil outlet butterfly valves and outputting corresponding multi-stage early warning information; according to the invention, single-valve-level accurate detection can be realized, unfiltered rolling oil is prevented from entering the oil cleaning tank, the defect rate of spot marks on the surface of a steel coil is reduced, the qualification rate of cold-rolled products is improved, meanwhile, the manual inspection cost is reduced, and the system intelligence and maintenance convenience are improved; the technical problems of limited adaptive scene, accurate detection, information distortion, misjudgment risk and lack of an automatic early warning mechanism in the existing early warning technology are solved.

The invention relates to the technical field of hot rolling winding, and particularly discloses a hot-rolled copper plate winding machine which comprises a workbench, the top of the workbench is fixedly connected with a rolling part, and the part, located on one side of the rolling part, of the top of the workbench is fixedly connected with a cooling device. The part, located on one side of the cooling device, of the top of the workbench is fixedly connected with a deviation correcting device, the part, located on one side of the deviation correcting device, of the top of the workbench is fixedly connected with a phosphorus removing device, and the part, located on one side of the phosphorus removing device, of the top of the workbench is fixedly connected with a pressing plate device. The part, located on one side of the plate pressing device, of the top of the workbench is fixedly connected with a plate breaking device, the part, located on one side of the plate breaking device, of the top of the workbench is fixedly connected with a winding device, and the hot-rolled copper plate winding machine is provided with a dephosphorization device, prevents thermal stress cracks and reduces oxide generation.

The invention discloses a metal plate strip thickness automatic control device, and relates to the technical field of aluminum alloy plate rolling processing, the metal plate strip thickness automatic control device comprises a machine body and roller conveyors respectively mounted on two sides of the machine body, and further comprises a rolling mechanism comprising two fixing frames, rollers mounted in the fixing frames and a lifting assembly used for driving the fixing frames to lift; the monitoring mechanism comprises a laser scanner installed in the fixing frame and a displacement assembly used for driving the laser scanner to move; the adjusting mechanism is used for adjusting the position of the roller; a cleaning mechanism; by scanning the outside of the roller, the position, namely the sunken position, with the large abrasion degree outside the roller is found in time and positioned, after the roller is far away from the aluminum alloy plate, the position of the roller with the sunken position detected currently is adjusted, and the sunken position is moved out of the rolling range of the aluminum alloy plate. The problem that the rolling thickness difference of the aluminum alloy plate is large due to the large roller abrasion degree is solved.

An abnormal-vibration-predicting method for a roll grinder that grinds an outer peripheral surface of a rolling roll with a grinding wheel while the rolling roll rotates includes an acquisition step and a prediction step. The acquisition step acquires a rigidity parameter related to a rigidity of the roll grinder and a wheel rotation parameter related to a rotational speed of the grinding wheel. The prediction step predicts an occurrence of an abnormal vibration in a process of grinding the rolling roll by using the rigidity parameter and the wheel rotation parameter.

The utility model relates to a twenty-high roll mill roll system protection device which is made of copper materials, one end of the protection device is connected with a mill body through a spring pull rod, the other end of the protection device is movably connected with a sliding rail of an intermediate roll, and the protection device comprises a protruding block body, a wedge face body and a guide groove which are sequentially connected. One side face of the protruding block body, one side face of the wedge face body and one side face of the guide groove are flush and serve as a base side face, the protruding block body is of a narrow-end-up structure, the width of the bottom of the protruding block body is equal to that of the wedge face body, the two side faces in the thickness direction of the wedge face body are symmetrical inclined faces, and the thickness of the wedge face body is gradually increased from the base side face to the other side. The thickness of the wide face end of the wedge face body is equal to that of the protruding block body, a right-angle opening is formed in the top of the protruding block body, the protruding block body is connected with a spring pull rod at the right-angle opening through a pin shaft, and a sliding rail groove is formed in the lower bottom face of the guide groove and is in sliding connection with a sliding rail of a middle roller. And under the instant huge impact force when the strip steel is broken, the strip steel can be broken, and the roller and the backing bearing are protected.

The invention discloses a device for removing attachments on the surface of a roller of a cold-rolling mill, and belongs to the technical field of cold-rolling mills. Comprising a bottom plate, the right side of the upper surface of the bottom plate is in bolted connection with a rack, and the left side of the upper surface of the bottom plate is provided with a cold-rolling mill body; the device further comprises fixing frames, the two fixing frames are fixedly installed on the inner side of the rack through bolts, and the vertical ends of the fixing frames are connected with movable plates. According to the cold-rolling mill roller surface attachment removing device, the cleaning range of the cleaning brush is flexibly adjusted through the two-way threaded rod, the lead screw is matched to control feeding so that the cleaning strength can be adjusted, rollers of different sizes and multi-scene requirements can be met, the cleaning effect and roller protection are considered, meanwhile, through cooperation of the protruding block and the wedge-shaped block, the cleaning brush can axially rub in a reciprocating mode, and the cleaning effect is improved. Therefore, the cleaning mode is changed, the friction depth is strengthened, residual impurities at the textures of the roller can be efficiently stripped, the rubbing range of the cleaning brush is synchronously expanded along with the feeding distance, and the cleaning coverage and thoroughness are further improved.

The invention relates to the technical field of metal rolling, and discloses aluminum alloy plate strip rolling machining equipment which comprises a workbench and further comprises a support fixedly connected to the lower portion of the workbench and used for supporting the whole equipment. The two fixing plates are mounted on the workbench and used for fixing the rolling mechanism and the guide mechanism; the rolling mechanism is arranged on the fixing plate and used for rolling the aluminum alloy plate strip. The guide mechanism is arranged on one side of the rolling mechanism and used for guiding the feeding angle when the aluminum alloy plate strip is rolled. By arranging the guide mechanism and utilizing the cooperation of the guide roller and the third spring, an aluminum alloy plate strip can be accurately guided to enter the rolling rollers, it is ensured that the feeding angle is accurate, meanwhile, the distance between the rolling rollers can be adjusted in real time according to the thickness of the plate strip through the dynamic adjusting function of the arc-shaped connecting rod and the first spring, and the production efficiency is improved. And the stability of the rolling process is guaranteed, so that the rolling quality is improved, and the rejection rate caused by uneven thickness is reduced.

The utility model discloses a cold rolling mill self-cleaning brush roll device which comprises a brush roll body, the outer portion of the brush roll body is rotationally connected with supporting frames in a bilateral symmetry mode, the right end of the brush roll body is connected with a motor, a brush roll sleeve is arranged on the outer side of the brush roll body, and oil outlets are formed in the brush roll body at equal intervals. A piston is installed in the left side of the brush roller body, and an anti-loosening mechanism used for fixing the piston is arranged on the outer side of the piston. According to the self-cleaning brush roller device of the cold rolling mill, the reinforced cleaning mechanism is arranged, the rubbing frame is arranged on the outer side of the bristles of the brush roller and can rub with the bristles, so that cleaning of the bristles is promoted, meanwhile, the water splashing preventing mechanism is arranged, a protective cover can be installed on the outer side of the brush roller, and the rotating water throwing range of the brush roller can be controlled; and in addition, an anti-loosening mechanism is arranged, connection between the piston and the brush roller can be enhanced, and the piston can be prevented from loosening in the rotating process of the brush roller.

A splash-proof mechanism of an upper working roller for aluminum coil cold rolling comprises the upper working roller rotationally supported on a cold rolling rack, the two ends of the upper working roller are cone sections, the small-diameter ends of the cone sections face the cold rolling rack, two connecting plates extending in an arc shape are fixedly arranged on the cold rolling rack and correspond to the two ends of the upper working roller respectively, and the two ends of the upper working roller are connected with the cone sections. An oil baffle is fixedly arranged on each connecting plate and is bent in an arc shape, the circle where the oil baffle is located is concentric with the circle where the upper working roller is located, one side of the oil baffle bent in the arc shape is flush with the inner wall of the corresponding side of the cold rolling rack, and the other side of the oil baffle bent in the arc shape extends to the large-diameter end of the cone section at the corresponding end of the upper working roller; the starting end of the oil baffle is located on the discharging side of the upper working roller and corresponds to the bottom of the upper working roller, and the stopping end of the oil baffle extends in the rotating direction of the upper working roller and corresponds to the top of the upper working roller. The cold rolling oil recycling device is simple in structure, low in modification cost, capable of effectively preventing cold rolling oil from splashing out of cold rolling equipment, beneficial to cold rolling oil recycling and capable of avoiding pollution.

The utility model relates to the field of rollers, and discloses a working roller with shoulder pads embedded and sleeved, which comprises a mounting plate, two fixing plates are fixed on the top surface of the mounting plate, brackets are fixed on the top surfaces of the fixing plates, a working roller inner layer is rotatably arranged above the mounting plate, two ends of the working roller inner layer are respectively and fixedly provided with a shoulder pad column, and the shoulder pad columns are fixed on the mounting plate. A shoulder supporting sleeve is fixed to the shoulder supporting column, two supporting tiles are fixed to the top face of the bracket, and the supporting tiles support the shoulder supporting column upwards. In the utility model, the inner layer of the working roller and the shoulder supporting column have the characteristics of fracture resistance but not wear resistance, and then a worker installs the shoulder supporting sleeve made of a wear-resistant material mainly made of high-carbon chromium steel on the shoulder supporting column, so that the surface of the shoulder supporting sleeve is in contact with the supporting tile, and further, the wear-resistant effect of the shoulder supporting column can be improved; due to the high abrasion resistance of the shoulder supporting sleeve, abrasion is small when the inner layer of the working roller rotates, the roller grinding precision can be improved, a high-precision roller is provided for a rolling line, and control over hot rolling strip steel rolling control is guaranteed.

The utility model relates to a high-speed rolling mill, in particular to a transmission device of the high-speed rolling mill. A four-shaft balance transmission device of a high-speed rolling mill comprises a power input shaft and a shaft with a crank gear, a transmission gear is arranged on the power input shaft, and a balancing weight and a connecting rod for driving a machine frame are arranged on the crank gear. The two sides of a shaft where the crank gear is located are each provided with a transmission shaft, each transmission shaft is provided with a gear with a small balance block, the gear on one side is located between the power input shaft gear and the crank gear shaft and meshed with the power input shaft gear and the crank gear shaft, and the transmission shaft on the other side is provided with a gear which is meshed with the crank gear and provided with a small balance block. The two gears with small counterbalances are matched with a crank gear in diameter. Compared with existing equipment, the rolling efficiency is improved, and the service life of the rolling mill is prolonged.

According to the off-line brush roll adjusting device and method, an upper working roll assembly and a lower working roll assembly are placed in a containing groove of an overturning frame body, then the overturning frame body and the working roll assemblies are driven by a driving device to rotate to adjust the angle, and a working roll is pressed against the position, close to a brush roll, of a working roll bearing seat under the action of gravity; and then the brush roll is driven by the hydraulic motor of the brush roll, the gap is eliminated, the brush roll does not need to be adjusted on line, the operation is simple, the adjusting time is shortened, the working efficiency is improved, and the labor burden of workers is greatly relieved. According to the invention, the real state of the working roll and the brush roll during working can be simulated in an off-line manner. When the overturning oil cylinder extends out, the overturning frame body is horizontal, and at the moment, the working roll device can be hoisted. After hoisting is completed, the overturning oil cylinder retracts, the working roller device is overturned by 20 degrees on the overturning frame, the working roller is completely attached to the bearing seat under the action of gravity, the bearing backlash is eliminated, and the real working condition is simulated.

The utility model relates to an adsorbable brush roller which comprises a roller and bristles arranged on the surface of the roller, a magnetic attraction mechanism is arranged in the roller, an attraction channel is arranged on the roller, and the attraction channel is arranged by avoiding the bristles and is communicated with the inner space and the outer space of the roller. According to the utility model, the magnetic attraction mechanism is arranged in the brush roll, and the brushed oxide scale can be captured by the magnetic attraction mechanism through the adsorption channel under the action of magnetic force, so that the air quality of an operation site is effectively improved, the brush roll is friendly to operators, and clean rolling is realized; a dust removal system with poor sealing performance can be omitted, and the occupied space and the operation cost of equipment are correspondingly reduced.

This invention provides a fully automatic cold rolling equipment for producing copper strip, belonging to the technical field of fully automatic cold rolling equipment for producing copper strip. It includes: a main body, mounting plates, mounting frames, a cleaner, a waste trough, and an electric cylinder. Mounting plates are respectively installed on the upper and lower front sides of the main body. Mounting frames are installed on the inner sides of each mounting plate. Electric cylinders are installed on the front sides of each mounting frame. A cleaner is installed on the rear side of each mounting frame. The cleaner consists of a felt layer and a fiber cloth layer. A waste trough is installed on the inner side of each mounting frame. The cleaner, driven by the electric cylinder, presses against the roller surface from the side of the work roll end. The felt layer scrapes off large copper shavings, the fiber cloth layer cleans residual oil, and the waste trough collects the waste material. This system is interlocked with the main drive motor, achieving automatic online cleaning without stopping the machine. This effectively improves the surface quality of the copper strip and production efficiency. The structure is compact and easy to install and modify on existing equipment.

The utility model relates to the technical field of rolling mill guides and guards, and discloses a rolling mill guide and guard assembly capable of achieving temperature-controllable cooling. The rolling mill guide and guard assembly with the controllable temperature cooling function comprises a guide and guard assembly, a filtering and cooling assembly is installed at the upper end of the guide and guard assembly, a collecting tank is installed at the upper end of the filtering and cooling assembly, a filtering net is installed in the collecting tank, a cooling box is installed at the lower end of the collecting tank, and a protection plate is installed in the cooling box. A circulating pipe is installed on the left side of the cooling box, a connecting pipe is installed at the upper end of the circulating pipe, a pressure stabilizing assembly is connected to the left side of the filtering and cooling assembly, a water outlet pipe is installed at the upper end of the pressure stabilizing assembly, and a pressure stabilizing pump is installed at the upper end of the water outlet pipe. Large-particle impurities contained in water or oxide scale falling off from the surface of a rolled piece may block an injection orifice, so that cooling is insufficient, and the service life of a guide and guard device is affected.

The invention relates to the technical field of bearing seat cleaning, in particular to supporting roller bearing seat surface oil, rust and scale removing equipment and method.The supporting roller bearing seat surface oil, rust and scale removing equipment comprises a box body, the box body is arranged in a pit formed in the ground, a high-pressure flushing pump, a cleaning oil tank and an oil cleaning pump are fixedly arranged above the ground, and the output end of the high-pressure flushing pump communicates with a hard pipe and a hose; one end of the hose is communicated with a high-pressure water gun, one end of the hard pipe is communicated with a purging pipe structure, a roller saddle is fixed at the bottom end of the box body, a liquid collecting box is arranged below the box body and close to one side, a grating plate covers the liquid collecting box, and a sewage pump is arranged above the grating plate; the purging pipe structure comprises an inner side face nozzle set, a bottom face nozzle set and an outer side face nozzle set, and the roller saddles are located on the two sides of the bottom face nozzle set. The problems that dirt on the outer side of an existing back-up roll bearing seat is very difficult to clean manually, cleaning is not thorough through a conventional method, and great safety risks exist during manual cleaning are solved.

The application provides a calendering equipment for zinc ingot processing, and relates to the technical field of calendering equipment, which comprises a support, adjusting assemblies are arranged on both sides of the support, a group of calendering rollers are arranged in the adjusting assemblies, the calendering rollers are arranged in an up-down mode and are used for calendering zinc ingots, a driving motor for driving the calendering rollers to rotate actively is arranged on one side of the support, cleaning assemblies are arranged on the outer sides of the calendering rollers, the cleaning assemblies are used for removing residual impurities on the surfaces of the calendering rollers, and a PLC control cabinet is arranged on one side of the support. Through the arrangement of the reciprocating movable plate with the cleaning brush, the adhering matters on the surfaces of the calendering rollers can be brushed in real time. The axial reciprocating movement of the movable plate ensures that the cleaning brush can uniformly cover the surfaces of the calendering rollers, effectively avoids scratches and indentations caused by the adhesion of impurities, and significantly improves the surface quality.

A plurality of alignment electric push rods are fixed to the top end of a fixed supporting frame at equal intervals, a processing integration box is fixed to the bottom ends of the alignment electric push rods, a fixed limiting box is fixed to the inner side of the fixed supporting frame, and rolling wheel sets are installed on the inner side of the processing integration box and the inner side of the fixed limiting box. A plurality of treatment electric push rods are clamped to the top end of the treatment integration box, inclined push fixing plates are fixed to the bottom ends of the treatment electric push rods, vertical scraping plates are fixed to the top ends of the multiple fixed electric push rods, and the fixed electric push rods drive the vertical scraping plates to move, so that the side ends of the inclined push fixing plates and the side ends of the vertical scraping plates are attached to the side ends of the rolling wheel sets; and the impurities on the surface of the steel and the surface of equipment are completely removed through multi-section continuous scraping treatment, so that the situation of abnormal deformation of the steel caused by pressing of the foreign matters is avoided, and the production quality of the steel and the yield of products are ensured.

The application discloses a kind of strip steel's flattening method and device, the flattening method is by obtaining the strip steel flattening sequence comprising multiple flattening periods, determine whether the first strip steel roughness of current period is greater than the second strip steel roughness of next period, when the first strip steel roughness is greater than the second strip steel roughness, control current flattening strip steel of current period to polish the flattening work roll, so that the flattening work roll reaches the target roughness of next period, when the strip steel flattening of next period is implemented, based on the flattening work roll reaching target roughness, the strip steel to be flattened of next period is flattened and handled, since the flattening work roll is polished to the roughness required by control strip steel during flattening process, so that there is no need to change roll when flattening is implemented in next period, the roll changing frequency of flattening work roll on the flattening machine is reduced, and then the flattening efficiency of strip steel is improved.

The utility model relates to the technical field of roller cleaning devices, in particular to a laser on-line automatic control roller surface cleaning device, which comprises a laser component, a roller surface cleaning device, a roller surface cleaning device and a roller surface cleaning device, the visual monitoring assembly is used for collecting an image of the to-be-cleaned roller surface; the laser assembly is electrically connected with the visual monitoring assembly, and a to-be-cleaned roller surface sequentially passes through the visual monitoring assembly and the laser assembly. By using the laser assembly and the visual monitoring assembly, automatic cleaning of the roller surface is achieved, labor is saved, the working position of the laser assembly can be accurately controlled through the visual monitoring assembly, more energy is concentrated and used for actual work, and energy waste is reduced.

The present application relates to a kind of hot galvanizing production line finishing machine roll replacement reduces the method of degraded product, belong to hot galvanizing continuous production process technical field.The technical scheme is: according to the following steps to operate: step one: reduce process section one and process section two strip speed;Step two: when strip weld reaches finishing machine outlet, process section two strip speed reduces to 0 m / min;Step three: replace finishing machine work roll, and flushing is carried out to the work roll after replacement;Step four: after finishing machine work roll flushing is completed, process section two speed strip starts to run with the minimum strip running speed specified by finishing machine, tension leveler and roll coater, when finishing machine, tension leveler and roll coater start finishing, tension leveling and roll coating, process section two strip speed is gradually increased, and intermediate looper is released, until process section one and process section two restore normal production speed.The beneficial effects of the present application are: it can reduce the degraded product of strip due to not finishing when finishing machine roll replacement.

The present invention provides a surface defect suppression device and the like for suppressing the occurrence of surface defects such as stains on the surface of a metal strip, which are caused by a mixture of dirt formed by a lubricating oil and roll wear powder generated during rolling. The surface defect suppression device (20) includes an injection device (21) for injecting a cleaning liquid (21a) toward a work roll (4a), and water draining devices (22a), (22b) for preventing droplets (W) containing the lubricating oil (8a), roll wear powder generated during rolling, and the cleaning liquid (21a) from falling onto the metal strip (S). The water draining devices include water absorbing members (22aa), (22ba) for absorbing the droplets (W), and inclined members (22ab), (22bb) which, together with the water absorbing members, are inclined obliquely downward at an angle of 5 to 15° from the leading end to the opposite end with respect to the rolling direction. The water absorbing member is disposed at a position such that the gap (Δ22a), (Δ22b) between the work roll and the water absorbing member is 0.2 to 0.8 mm during low speed rolling, and 1.0 to 5.0 mm during high speed rolling.

This invention relates to a modular rolling mill health status monitoring system, belonging to the field of metallurgical machinery equipment monitoring. It includes a rolling mill body, a weighing module, and a monitoring module. The rolling mill body consists of a work base, rolls, and bearings. The weighing module is located below the work base, and the monitoring module is located at the rolls. The weighing module includes a base plate, which is connected to a collection trough via a pressure sensor. A connecting rod is connected to the side wall of the base plate and is connected to the bottom of the work base. The pressure sensor signal is connected to a controller, and the controller signal is connected to a display module. The monitoring module includes a resolver sensor and a vibration sensor, both connected inside the rolls and connected to the controller signal. This invention acquires digital signals by monitoring the condition of the rolls and bearings, enabling the detection of the rolling mill's health status and simultaneous monitoring of multiple parameters. This provides a basis for predicting the remaining service life of the rolling mill, saving resources and time costs.

The utility model belongs to the technical field of mechanical equipment, and discloses an automatic aligning device for a rolling mill brushing roll clutch, which comprises a support frame, a support arm, a hydraulic telescopic rod and a positioner are arranged on the support frame, the support arm is rotatably connected with the support frame, the hydraulic telescopic rod is used for adjusting the rotation angle of the support arm, and the positioner is used for detecting and positioning the support arm. A V-shaped groove matched with a clutch driving part is formed in the free end of the supporting arm, an electromagnet is installed in the V-shaped groove, the alignment device is further provided with a moving mechanism and a controller in a matched mode, and the moving mechanism is used for horizontally moving the supporting frame, so that the supporting arm and the clutch driving part are horizontally moved. According to the alignment device, the clutch can be accurately aligned, automatic assembly of the clutch driven part and the clutch driving part is achieved, manual alignment operation is not needed any more, and safety is higher.

This invention relates to a method for identifying and controlling scratch defects in cold-rolled high-strength steel, belonging to the technical field of metallurgical control methods. The technical solution of this invention is: a method for statistically analyzing and identifying the morphological characteristics of scratches in different processes of continuous casting, hot rolling, and pickling, as well as corresponding process control schemes, to comprehensively control key control points in each process. The beneficial effects of this invention are: by providing a method for identifying the morphological characteristics of scratches in different processes, and a control scheme for scratches in different processes, it effectively controls scratch defects in finished products, improves product quality, reduces quality losses, and simultaneously increases contract fulfillment rates.

The invention relates to the technical field of slag flushing devices, in particular to a slag flushing device and method for a working roll of a rolling mill, the slag flushing device comprises a slag flushing water collecting pipe externally connected with a pressurized water source, and the slag flushing water collecting pipe is provided with collecting and spraying areas and plate blank spacing sections located between the collecting and spraying areas; wherein the collecting and spraying area is provided with a plurality of nozzles in the length direction of the slag flushing water collecting pipe, and the length of the collecting and spraying area is not smaller than the width of a steel billet to be subjected to slag flushing. According to the slag flushing device and method for the working roller of the rolling mill, on the premise that original slag flushing water pressure does not need to be changed, the number of the nozzles is reduced, the slag flushing water pressure of a single nozzle is improved, the slag flushing effect is improved, oxidizing slag accumulation on a roller protection plate can be effectively reduced, and the occurrence rate of pitted surfaces and pits of thick-specification products is greatly reduced; the method is suitable for slag flushing in the steel billet dephosphorization process.

The application discloses a kind of cleaning device of work roll for galvanized strip steel processing, including bearing base plate, rolling mill main body, roller conveyor, straightening machine main body, cutting machine main body and flattening machine main body, and the bottom end in rolling mill main body is connected with cleaning assembly by cleaning cavity, cleaning assembly can clean the work roll body in rolling mill main body, cleaning assembly includes horizontal mechanism, swing mechanism and reverse mechanism, swing mechanism can be moved and adjusted left and right, adapt to the work roll body of different positions, swing mechanism top is connected with reverse mechanism, can drive reverse mechanism to swing left and right, adapt to the arc structure of work roll body outside, reverse mechanism includes installation frame, cleaning wheel one and cleaning wheel two etc., under the cooperation of each other, by the reverse rotation of cleaning wheel one and cleaning wheel two, the cleaning effect of work roll body outside is strengthened, and the stripping effect of material on work roll body outside is improved, to realize more high-quality cleaning effect.