1812results about "Rolls" patented technology

The invention relates to the technical field of roller cooling, and discloses a roller cooling temperature control method and system.The method comprises the steps that the length of a roller is obtained, and the roller is equally divided into N temperature monitoring areas according to the length of the roller; n pieces of detection temperature value data are obtained and preprocessed; inputting the detected temperature value data into a pre-trained state model for comparison, and obtaining a temperature prediction value; the optimal cooling water flow is calculated according to the temperature prediction value through an MPC controller; acquiring historical data of the roller, and inputting the historical data into the auto-encoder for reconstruction; inputting detection temperature value data collected in real time into the auto-encoder, and calculating a reconstruction error value; and determining a current cooling water flow control state based on the reconstruction error value, and compensating the cooling water flow to the MPC controller. The roller cooling efficiency is improved.

The invention provides a high-frequency welded pipe roller wear state monitoring method and device, and relates to the technical field of artificial intelligence and data processing, a holographic sensing system of working condition parameters and physical signals is constructed through synchronous monitoring of a multi-source sensor, and noise spectrum offset is tracked in real time based on time-frequency expression of data in different modes, so that the real-time monitoring of the wear state of a high-frequency welded pipe roller is realized. And an anti-error filtering protection channel is constructed, so that the inherent characteristics of the damage can be effectively captured. In addition, multi-physical field damage characterization information is fused from multiple complementary dimensions of transient impact (instantaneous frequency vector), spectrum complexity (spectral entropy) and amplitude distribution deflection (skewness), more comprehensive and richer state description can be provided, accurate quantitative evaluation of the roller wear level is achieved, and the capacity of real-time monitoring and accurate recognition of the roller wear state is remarkably improved.

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 invention discloses beryllium copper plate calendaring forming equipment, and relates to the technical field of beryllium copper plate manufacturing, and the beryllium copper plate calendaring forming equipment comprises a rack, a transmission assembly, a cleaning assembly and a driving guide assembly. A multi-layer composite calendering roller structure is adopted, an outer tungsten carbide wear-resisting layer is matched with a middle copper-aluminum alloy heat conduction layer and a 42CrMo alloy steel support layer, a dynamic temperature control system is formed under the synergistic effect of a spiral heating channel, a spiral cooling channel, a microwave heating tank and a liquid nitrogen cooling tank, the forming precision and the material performance are remarkably improved, and the service life of the calendering roller is prolonged. A transmission assembly, an automatic cleaning assembly on the inner wall of the rack and driving guide assemblies at the two ends are externally arranged, the rolling stability is guaranteed, the position of the beryllium copper plate can be adjusted in real time, the intelligent control platform integrates the multispectral monitoring and touch control adjusting functions, closed-loop optimization of thermal parameters is achieved through a temperature control unit, and the working efficiency is improved. And therefore, the equipment has high-efficiency forming, intelligent monitoring and process self-adaptive capabilities in the machining process.

The present invention relates to the field of aluminum cold rolling technology, and specifically to an aluminum cold rolling production device and production method for can body materials, including a stable cold rolling device for rolling aluminum alloy strips, the stable cold rolling device including a driving platform, a cold rolling roller, an outer wall cleaning mechanism, a first ball screw slide, an identification detection device and a spare replacement installation platform; two cold rolling rollers are provided and installed on the driving platform; two outer wall cleaning mechanisms are provided, and an outer wall cleaning mechanism is provided on the side of each cold rolling roller; two first ball screw slides are provided, and a first ball screw slide is installed on the working end of each outer wall cleaning mechanism; two identification detection devices are provided, and an identification detection device is installed on the active end of each first ball screw slide; the spare replacement installation platform is provided on the side of the driving platform, and spare rollers to be replaced are stored on the spare replacement installation platform. The present invention can effectively ensure the stability of production and improve productivity at the same time.

The utility model relates to the technical field of strip steel rolling, in particular to galvanized strip steel production rolling equipment. According to the technical scheme, the device comprises an air outlet pipe, a fixing frame, rollers and an air cooler, the rollers are symmetrically and rotationally installed in the positions, close to the upper surface and the lower surface, of the interior of the fixing frame, cooling cavities are formed in the two rollers, and the two ends of each roller are fixedly connected with a rotary joint A and a rotary joint B correspondingly; connecting pipes A are fixedly connected to the outer sides of the two rotating joints A, the tail ends of the two connecting pipes A are fixedly connected to the outer surface of an air outlet pipe, and an air inlet pipe is fixedly connected to the tail end of the air cooler output pipe. In the hot rolling process of the galvanized strip steel, the temperature of the roller is reduced, the service life of the roller is prolonged, heat of the roller is converted into hot air, production raw materials needing to be heated can be preheated, meanwhile, the hot air drying device can be used for drying the galvanized strip steel after follow-up cleaning operation, and energy consumption is saved.

The utility model relates to an edge auxiliary heating device which comprises a mounting frame, two groups of heating assemblies are transversely and symmetrically arranged on the mounting frame, each heating assembly comprises a longitudinal moving table fixedly connected to the mounting frame and a transverse moving table arranged above the longitudinal moving table and connected with the longitudinal moving table in a sliding mode, and the transverse moving table is connected with a heater through a sliding table. The heater is in transverse sliding connection with the transverse moving table through the sliding table, servo motors are arranged at the ends of the transverse moving table and the longitudinal moving table and driven by the transverse moving table and the longitudinal moving table, and servo motor encoders are installed on the servo motors. And the temperature gradient of the edge part and the central area of the roller is reduced, so that the temperature of the roller is kept consistent as much as possible within the width range of the strip, thereby eliminating the defects of edge tightness and rib looseness of the rolled strip and obtaining a good edge plate shape.

The invention provides rolling equipment, a current collector, a preparation method of the current collector, a pole piece, a battery and a device. A rolling device comprises a roller mechanism, a flow control mechanism and a power mechanism. The roller mechanism comprises at least two opposite rollers arranged at intervals and a flow control mechanism. The flow control mechanism is used for independently controlling the flow of the cooling medium in each cooling channel; the power mechanism is used for driving at least one roller to rotate. According to the rolling equipment, the roller diameter of the roller can be simply, effectively and flexibly adjusted by controlling the flow, so that the thickness of a rolled membrane material is adjusted, for example, a current collector with a large thickness in a tab area is prepared, the current collector is used for preparing an electrode pole piece, the problem of belt breakage in mass production of the electrode pole piece can be solved, and the production efficiency of the electrode pole piece is improved. And the yield of electrode plate production is improved.

An electrically-assisted tooth-shaped rolling process and device for preparing a gradient ultrafine-grained sheet is provided. A rib-forming pressure roller, a rib-flatting pressure roller and a straightening pressure roller are adopted to sequentially roll relative to a surface of a sheet under a preset pressing force. The surface of the sheet is driven, under a rib forming process, to generate large deformation in micro-area to crush and refine grains, and under a rib flatting process to generate reverse large deformation in micro-area. Large deformation areas in the rib forming process and the rib flatting process are staggered to further crush and refine the grains. A cold straightening process drives the sheet to be restored to an original shape, so that the sheet becomes the gradient ultrafine-grained sheet with a decreasing grain size gradient from an interior to a surface layer.

The invention provides an aluminum strip sectional type continuous rolling device, and relates to the technical field of aluminum material production equipment.The aluminum strip sectional type continuous rolling device comprises an unwinding mechanism, a rolling mechanism and a winding mechanism, and the rolling mechanism comprises a rolling frame and a plurality of rolling roller sets; each rolling roller group comprises a first roller group and a second roller group, and the first roller group and the second roller group respectively comprise a first rolling roller and a second rolling roller which are arranged up and down; the rolling gap of the first rolling roller is the same as that of the second rolling roller; a plurality of first rolling parts and second rolling parts are arranged on the first rolling roller and the second rolling roller in the length direction in an array mode, the first rolling parts and the second rolling parts are arranged at intervals, and the rolling surfaces of the first rolling parts and the second rolling parts do not coincide; the first roller set and the second roller set are each provided with a force uniformizing assembly, and the rolling frame is provided with a plurality of deviation preventing assemblies which are arranged at intervals with the rolling roller sets. Sectional type continuous rolling of the aluminum strip can be achieved, it is guaranteed that the rolling quality of all parts in the width direction of the aluminum strip is uniform, the aluminum strip rolling effect is improved, and the aluminum strip rolling loss is reduced.

The utility model discloses a multistage head rolling machine for steel pipe processing, which comprises a base, a guide device and a roller device, the guide device comprises a first sliding seat, a second sliding seat and a guide assembly, the first sliding seat is matched on the base in a sliding mode, the second sliding seat is matched on the first sliding seat in a sliding mode, and the guide assembly is matched on the second sliding seat in a sliding mode. The guide assembly is mounted on the second sliding seat; the roller device comprises a roller support, a first roller and a second roller, the roller support is installed on the base, the first roller and the second roller are installed on the roller support, and the first roller and the second roller are oppositely arranged. A plurality of first roller hole patterns with different sizes are formed in the outer wall surface of the first roller, a plurality of second roller hole patterns with different sizes are formed in the outer wall surface of the second roller, and a roller hole pattern cavity is defined by the first roller hole patterns and the second roller hole patterns; the steel pipe head rolling machine can well roll heads of steel pipes of different specifications and is wide in application range.

The invention relates to an upper and lower roller reducing independent transmission universal rolling mill and a control method thereof, and belongs to the technical field of metallurgy. The rolling mill comprises a universal rolling rough rolling unit, a middle rolling unit and a universal rolling finish rolling unit which are sequentially arranged along a rolling line, a horizontal roller set of each unit is of an upper and lower roller reducing structure and is provided with an independent transmission system, and a gearbox and a transmission shaft are driven by an independent motor to achieve roller separation control. The middle rolling unit is a reducing edging mill, and temperature control units are arranged in front of and behind the rough rolling unit and the finish rolling unit respectively. The rolling method comprises the steps of adjusting the roller diameter ratio, synchronously adjusting the dip angle of the universal spindle and the basic height of the rolling mill, conducting gradient deformation rolling, dynamically adapting to a rolling model and the like. Through cooperation of independent transmission and reducing, accurate matching of the speeds of the upper roller and the lower roller is achieved, deformation uniformity is improved, the total motor power is reduced, an adjustable cooling nozzle and intelligent model optimization are combined, a product has the surface layer ultra-fine grain structure and core toughness, and the yield and market competitiveness are remarkably improved.

The invention relates to a machine core calibration device for an adjustable rack of a tube push bench. The machine core calibration device comprises an annular rack, and a machine core supporting structure is arranged at one axial end of the annular rack; a calibration block is arranged at the other axial end of the annular rack in an extending manner; the center line of a roll hole pattern on an adjustable rack core loaded on the core supporting structure is coaxial with the center line of the calibration block; a plurality of detection rods are arranged on the annular rack, the detection rods are connected with a detection driving part, the detection driving part drives the detection rods to press against the roller in the machine core of the adjustable rack until the roller abuts against the calibration block, and a displacement sensor is arranged on the detection driving part; and the control part is used for receiving the displacement data output by the displacement sensor and transmitting the displacement data to a production control system. Roll gap measurement of the machine core of the pipe jacking adjustable rack is completed, manual detection is replaced, the working efficiency and detection precision of machine core assembly and detection can be improved, meanwhile, the intelligent operation level of a factory is achieved, and the device is compact in structural form, convenient to use, high in working efficiency and capable of meeting the working requirement between rollers.

The invention relates to the technical field of metal plate rolling processing, and discloses a rolling strengthening method capable of reducing the rigidity of a metal plate, which comprises the following steps: applying an asymmetric rolling condition to an initial plate to enable the plate to generate a speed gradient in the thickness direction; the plate is subjected to one-pass large-rolling-reduction rolling, and a non-continuously-distributed shear band is formed; the rolled plate is heated to the dynamic recrystallization temperature interval of the plate, and multi-pass small-rolling-reduction warm rolling is conducted on the plate; and in the warm rolling process, dynamic recrystallization of a shear band is promoted to form a grain-refined continuous core layer, complete recrystallization of the surface structure of the plate is inhibited to keep the work hardening state of the plate, and therefore the metal plate with the rigidity lower than that of an initial plate is obtained. According to the invention, a soft core-hard shell heterostructure is constructed in the plate, high strength and low macroscopic rigidity are synergistically realized, the process controllability is strong, and the method is suitable for preparation of high-performance structural materials.

The utility model discloses roller hot jacket dismounting and mounting equipment which comprises a rack, a control box, an induction heating device, a lifting mechanism and a supporting mechanism, the lifting mechanism is fixed on the rack, a heating coil of the induction heating device is horizontally arranged, the heating coil is fixedly connected with the lifting mechanism through a support, and the heating coil is sleeved on a roller sleeve of a roller. The lifting mechanism drives the heating coil to do vertical reciprocating motion along the axis of the roller sleeve, the supporting mechanism is located under the heating coil and fixed to the rack through a support, the supporting mechanism vertically supports one end of the roller, the induction heating device and the lifting mechanism are electrically connected with the control box, and the control box is fixed to the rack. Compared with the prior art, the thermal sleeving device has the beneficial effects that the thermal sleeving device can perform thermal sleeving and thermal dismounting on the roller sleeve and the roller core, and is easy to operate, high in safety and low in cost.

The invention belongs to the technical field of special alloy hot rolling, and particularly relates to a refined subsection cooling method and device for a titanium plate hot mill roller. Comprising the steps that S1, a temperature field distribution function of a roller during rolling and a temperature field distribution function of the surface of the roller during cooling are obtained; s2, a heat exchange coefficient distribution function of the heat exchange coefficient required by the roller in the axial direction of the roller is obtained; s3, a distribution function of the cooling water flow in the axial direction of the roller is obtained; s4, according to the distribution function of the cooling water flow in the axial direction of the roller, the roller is divided into a plurality of cooling sections in the axial direction of the roller, and different cooling sections correspond to different cooling water flow difference threshold values; and S5, a non-contact temperature sensor is arranged at the center position of each cooling section, an independent roller cooling mechanism is configured for each cooling section, and the flow of cooling water is adjusted. Independent cooling control over different cooling sections of the roller is achieved, and the plate shape quality of a titanium plate is improved.

The present invention provides a continuous extrusion device and method for copper strip processing, which relates to the technical field of copper strip processing devices. A continuous extrusion device for copper strip processing includes: a workbench erected on a horizontal plane; a first rotation source fixedly arranged on the workbench and provided with a plurality of them along the vertical direction. The driving shaft of each first rotation source is fixedly connected with a support rod, the support rod is rotationally connected with the workbench, the support rod is fixedly sleeved with a roller base body, and adjacent two roller base bodies extrude the copper strip. The inner side wall of the roller base body is fixedly connected with a reinforcing rib, and the height of the reinforcing rib gradually increases from the middle of the roller base body to both ends. The present invention has the effect of improving the extrusion accuracy of the copper strip.

The novel lithium battery shell has strict requirements on the performance, the surface, the plate shape and the like of stainless steel precision strip steel. The invention relates to a production process of 304 cold-rolled stainless precision strip steel for a lithium battery shell. Compared with a conventional process, a roller heat treatment process is added. By controlling the components of the raw materials and adding special rolling, annealing and straightening processes, the problems of poor plate shape, non-uniform performance, poor surface and the like in the production process of the stainless steel band are effectively solved, and the high-quality requirement of the lithium battery shell industry is met.

The invention discloses a cold rolling die with a straight rib thin-wall cladding pipe, a production process and the cladding pipe, and relates to the technical field of reactor fuel cladding, the cold rolling die comprises a cold rolling outer die for controlling the forming of the outer contour of a pipeline and a cold rolling core head for controlling the inner diameter; the cold rolling outer die is a die with a hollow area inside, the hollow area comprises a pitch circle section and a fixed rib section, and the fixed rib section is provided with at least one section of rib groove; a pipeline forming die cavity is formed by hollow areas of the two cold rolling outer dies, and a roll gap is formed between the two cold rolling outer dies; when the cold rolling die is used for producing the cladding pipe, the requirement for room-temperature plasticity of cladding materials in the forming process is low, the quality of the surface of the cladding pipe cannot be affected in the forming process, the quality of a formed product is high, and the cold rolling die is simple in structure, low in manufacturing cost and suitable for popularization and application. The thin-wall cladding tube with the straight ribs produced by the cold rolling die is good in surface quality, and the ribs of the cladding tube are good in mechanical property.

The invention belongs to the technical field of rolling, and particularly relates to an anti-decarburization and anti-brittle failure controlled cooling process for a high-silicon-chromium alloy tool steel wire rod. Aiming at the dilemma that the hot-rolled wire rod which contains more than 2.0% of Si, more than 1.1% of Cr, Mo, V and other alloy elements not only meets the decarburization requirement of a product, but also does not have brittle failure of the wire rod, the method comprises the following steps: firstly, determining the cover entering temperature of the hot-rolled wire rod, the cooling speed of the wire rod before the hot-rolled wire rod enters the cover and other key process parameters; and then the method is realized by adjusting the speed of a roller way, the number of opened heat preservation covers after spinning, a fan Jinling device, the air volume of a fan, the spinning temperature and the like, so that the hot rolling structure of the wire rod is a pearlite structure which is not easy to brittle, and meanwhile, the requirement that the decarburization of a product does not exceed 0.55 D (D is the diameter of the wire rod) is met.

The invention relates to a foil rolling device and method, a current collector, a pole piece forming method, a battery production system and a power utilization device.In the rolling process, a rolling mechanism is used for rolling a foil to the needed thickness, and then a rolling mechanism is used for rolling a first blank area of the foil in the tape conveying direction; and the first blank area has extension deformation in the tape conveying direction. The first blank area of the foil corresponds to the tab area of the pole piece, so that the tab area of the pole piece is equivalently extended in advance and has extension deformation quantity in advance during cold press molding of the pole piece, and the probability of wrinkling of a coating area due to excessive extension can be reduced. Besides, the calendaring of the tab area is advanced to the rolling process, and the calendaring mechanism is arranged at the downstream end of the rolling mechanism, so that heat generated in the rolling process can be fully utilized in the calendaring process, and the first blank area of the foil is easy to extend.

The invention aims to provide a device and process for preparing a fine-grain magnesium alloy plate through turning arc-shaped roller rolling, and belongs to the technical field of light metal plastic forming, and the device comprises a special-shaped roller, a flat roller and a motor; the special-shaped rollers comprise the upper special-shaped roller and the lower special-shaped roller, the lower special-shaped roller is horizontally arranged, and the included angle between the axis of the upper special-shaped roller and the axis of the lower special-shaped roller is 20-45 degrees. The two ends of the upper special-shaped roller and the two ends of the lower special-shaped roller are connected with an upper bevel gear and a lower bevel gear through roller shafts respectively, the upper bevel gear and the lower bevel gear located at the same end are meshed with each other, and the lower bevel gear located at one end is connected with a motor through a coupler. The flat roller is located behind the discharging end of the special-shaped roller, the included angle between the axis of the flat roller and the axis of the lower special-shaped roller which is horizontally placed is 0-45 degrees, and the fine-grain magnesium alloy plate with the weak basal texture is finally manufactured through the method. The problem that a traditional magnesium alloy plate is prone to forming a strong basal texture is solved, and the performance of the magnesium alloy plate is effectively improved.

The invention relates to the technical field of high-temperature alloy materials, and provides an N10276 profiled bar and a forming method thereof.The surface of a blank is coated with a three-layer composite sheath, the blank is heated in a partitioned and gradient mode, the temperature of a side wing plate area is 50-100 DEG C higher than that of a web plate area, the metal fluidity of a side wing plate is improved, cogging rolling, four-roller reciprocating finish rolling, partitioned and gradient cooling and secondary solution treatment are conducted, and the N10276 profiled bar is obtained. A nitric acid and hydrofluoric acid mixed solution is used for pickling and stripping the composite sheath, an oxide layer is removed, intergranular corrosion is avoided, a triple sheath synergistic protection mechanism is adopted, oxygen is physically isolated by outer stainless steel, and heat loss is inhibited by a middle yttria-stabilized zirconia ceramic fiber layer.

Generally described, one or more aspects of the present disclosure relate to methods, systems, and devices related to pre-straining bare lanes of a multilane electrode with a system for calendering a multilane electrode including a pre-strain roll device including a plurality of pre-strain rollers and a pressure roller forming a pre-strain nib and a calender roll device comprising a pair of calendering rollers forming a calendering nip positioned downstream from the pre-strain roll device.

A system configured to roll a metal into a foil. The system includes rollers spaced apart to receive the metal therebetween. The rollers are configured to press against the metal to roll the metal into the foil. A cooling sub-system is configured to cool the rollers with a coolant, thereby cooling the foil in contact with the rollers.

The utility model discloses a rolling thermal expansion and cold contraction device which comprises a pair of roller sets, a thickness gauge, a plurality of temperature sensors and a temperature regulation and control assembly, the roller sets are provided with a plurality of temperature control flow channels, one temperature sensor is correspondingly arranged in one temperature control flow channel, the thickness gauge is used for detecting the thickness of a pole piece, and the temperature regulation and control assembly is used for regulating and controlling the temperature of the pole piece. The thickness gauge and the temperature sensor are respectively connected with the temperature regulation and control assembly, and the temperature regulation and control assembly is connected with the temperature control flow channel. The temperature regulation and control assembly adjusts the temperature of liquid input into the temperature control flow channel according to data detected by the temperature sensor and the thickness gauge so as to enable the deformation position of the roller set to expand with heat and contract with cold. According to the rolling thermal expansion and cold contraction device, liquid is conveyed to the deformation part of the upper roller or the lower roller, so that the deformation part of the upper roller or the lower roller is subjected to thermal expansion and cold contraction, the size of the roller group is controlled, and an electrode plate meeting the process requirement is rolled.

The utility model relates to the technical field of lithium battery production, and particularly discloses a pole piece rolling device which comprises a rack, a first roller, a second roller and a rotating assembly, the first roller and the second roller are oppositely arranged to form a rolling channel; first bearing seats are arranged at the two ends of the first roller, and the sides, back to the rolling channel, of the first bearing seats are movably connected with the rack through rotating assemblies; second bearing seats are arranged at the two ends of the second roller correspondingly, and the sides, back to the rolling channel, of the second bearing seats are movably connected with the rack through rotating assemblies. The pole piece rolling device has the technical effects that the size of a roll gap in the rolling process can be kept unchanged, so that the thicknesses of pole pieces are consistent, and the quality of the pole pieces is improved.

The invention discloses a rolling device for sheet metal part machining, and relates to the technical field of metal rolling. The adjustment problem is solved. The device specifically comprises racks on the two sides and a protective cover fixed to the opposite sides of the two racks, a rolling part is arranged in a cavity formed by the racks and the protective cover, and receding openings allowing plates to enter and exit are formed in the two ends of the protective cover; the rolling part comprises adjusting arms located on the two sides and a plurality of sets of rolling rollers arranged between the adjusting arms, and the two adjusting arms on each side are symmetrically arranged. By arranging the multiple sets of rolling rollers, the adjusting arms and the adjusting assemblies, the gaps of the rolling rollers can be adjusted in a targeted mode according to actual requirements, the thickness of a finally-rolled metal plate is changed, meanwhile, due to the fact that the adjusting arms are linear, the gaps of the multiple rolling rollers are in an arithmetic progression, the metal thickness changing tasks of all the rolling rollers are the same, and the working efficiency is improved. Therefore, the stress is uniform and the service life is prolonged.

The invention relates to the technical field of high-speed cable shielding materials, and discloses a manufacturing method of rolled copper foil for high-speed cable shielding. The method comprises the following steps: preparing a copper plate; performing multi-pass cold rolling on the copper plate to form an elongated grain structure oriented along the rolling direction; performing controlled annealing on the cold-rolled copper foil to recover plasticity and inhibit complete recrystallization; the target thickness is obtained through finish rolling; carrying out finishing rolling on at least one surface of the copper foil by adopting a mirror surface working roller so as to reduce the surface roughness; and performing surface smoothing or passivating treatment to inhibit oxidation and performance degradation. Therefore, the obtained rolled copper foil has good ductility, structural stability and high-frequency performance.

The embodiment of the invention provides a cooling device and method for an upper roller at an inlet of a finishing mill, and relates to the technical field of metallurgical equipment. The cooling device for the roller on the upper portion of the inlet of the finishing mill comprises a working roller, a supporting roller and a cooling mechanism, the supporting roller is arranged above the working roller, the cooling mechanism is provided with a first water outlet and a second water outlet, the first water outlet makes contact with the working roller, the second water outlet and the supporting roller are arranged in a spaced mode, and the supporting roller is arranged above the working roller. The first water outlet is used for spraying water towards the surface of the working roller so as to cool and clean the surface of the working roller, and the second water outlet is used for spraying water towards the surface of the supporting roller so as to cool and clean the surface of the supporting roller. In the using process, the first water outlet and the second water outlet of the cooling mechanism can clean and cool the working roller and the supporting roller correspondingly, and the cooling efficiency is improved.