1394results about "Rolls" patented technology

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 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 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 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 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 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.

To provide a stand that enables both of a position in a rolling machine and a configuration for adjustment to be selected more flexibly at the same time with designing for downsizing the rolling machine.SOLUTION: A stand 1 rolls a metal rod, a wire, and a pipe along a rolling shaft. The stand includes: a stand housing 10 whose outside includes at least six side surfaces 14.1-14.6 having equal lengths which are arranged rotationally symmetrically with the rolling shaft as a center, when viewed along the rolling shaft, where the two side surfaces respectively form a pair of side surfaces arranged in parallel to each other; and three rollers 20.1-20.3 each arranged on one roller shaft, and surrounding the rolling shaft in a star shape to jointly form a caliber 21. The three rollers are loaded by an eccentric bushing, in a bearing hole of the stand housing, by a method in which an interval in a radial direction of the rollers from the rolling shaft can be adjusted.SELECTED DRAWING: Figure 1A

The utility model relates to a smooth copper shell cold roll, which comprises an inner core component and a copper shell component coaxially connected outside the inner core component, a liquid inlet channel and a liquid outlet channel are respectively arranged at two ends of the inner core component, and an annular cavity is arranged in the copper shell component. The liquid inlet channel, the annular cavity and the liquid outlet channel are sequentially communicated and form a one-way cooling flow channel; an impeller rotating along with the liquid inlet channel is installed in the liquid inlet channel and used for driving cooling liquid to flow in the one-way cooling flow channel. Through the design of linkage of the impeller and the roller body, the cooling liquid is driven to flow by using the rotation power of the roller, an external pumping device is not needed, active cooling with zero extra energy consumption is realized, and the energy-saving benefit is remarkable; a spiral flow guide path is matched, so that the heat conduction efficiency and the cooling liquid contact area are greatly improved, and thermal deformation is effectively prevented.

The present invention belongs to the technical field of non-oriented silicon steel production and discloses a method for improving the cold-rolled edge quality of high-grade non-oriented silicon steel burr coils. The method comprises: cold rolling using a multi-stand continuous rolling mill or a single-stand reversible rolling mill for 5 to 7 rolling passes, controlling the flatness of the plate after the first, second, and final rolling passes to meet a specific formula; in addition, the rolling speed of the first pass, the emulsion flow rate of the first and second passes, and the original roughness of the mill work rolls can be further controlled. The present invention achieves the purpose of controlling rolled edge cracks and reducing edge waves by adopting a large edge wave rolling mode and adjusting the rolling speed, emulsion flow rate, and the original roughness of the work rolls, thereby achieving optimal cold-rolled edge quality of the burr coils and improving production efficiency and product yield.

The present application relates to copper plate strip processing technical field, provide a kind of advanced copper plate strip continuous rolling process, including S1.selecting the copper ingot of copper content above 99.9%, after sawing and surface polishing to obtain raw material;S2.copper ingot is heated in heating furnace, ensure the uniformity of copper ingot internal temperature;S3.using roughing mill to the copper ingot after heating is rolled through 2-3 passes roughing;S4.copper plate strip after roughing enters medium rolling mill, and medium rolling pass is 3-5 times;S5.copper plate strip after medium rolling enters finishing mill, and finishing pass is 3-4 times;S6.on-line cooling: copper plate strip after finishing immediately enters on-line cooling system.By early accurate sawing and polishing treatment, the initial quality of copper plate strip is guaranteed, the smooth progress of subsequent rolling process is ensured, the multi-pass continuous rolling process of roughing, medium rolling and finishing is combined with on-line cooling, through strict parameter control, not only improve production efficiency, but also effectively reduce energy consumption, reduce production cost.

The invention discloses thickness-variable metal belt rolling equipment and a thickness-variable metal belt rolling method, and belongs to the technical field of metal rolling, the thickness-variable metal belt rolling equipment comprises a rack and further comprises roller quick cutting mechanisms, a thickness quick adjusting mechanism and a metal belt supporting mechanism, and the two roller quick cutting mechanisms which are vertically stacked are distributed on the upper side of the rack; a roller fast cutting mechanism with the lower side conducting self-locking and fast switching on rollers is installed on the upper side of the rack, the thickness fast adjusting mechanism is installed on the rack, and metal belt supporting mechanisms for conducting supporting feeding and supporting discharging on metal belts are installed on the front side and the rear side of the rack correspondingly. The roller quick-cutting mechanism comprises a roller quick-switching mechanism and a roller locking mechanism, and the roller quick-switching mechanism for quickly switching the rollers is mounted on the upper side of the rack. In this way, the rollers made of different materials can be rapidly switched for rolling, and the rolling thickness can be rapidly adjusted.

The invention discloses a 0.01 mm-thick aluminum foil special for an anti-counterfeit label and a preparation method of the 0.01 mm-thick aluminum foil, and relates to the field of aluminum foil processing.The preparation method comprises the steps that a 0.24 mm-H14 aluminum foil blank is subjected to four-pass rolling and shearing, and a 0.01 mm-H18 aluminum foil is obtained; and carrying out gradient annealing on the aluminum foil finished product rolled in the fourth pass to obtain the 0.01 mm-0 state thickness aluminum foil special for the anti-counterfeit label. Wherein the process conditions of gradient annealing are as follows: heating: the temperature is increased to 185 DEG C from room temperature within 20 hours; primary heat preservation: preserving heat at 185 DEG C for 25 hours; cooling: reducing the temperature from 185 DEG C to 120 DEG C within 3 hours; and secondary heat preservation: preserving heat at 120 DEG C for 10 hours. The optimized 1235 alloy raw material is selected to prepare the blank, and the specific four-pass rolling process and the gradient annealing process are combined, so that the obtained aluminum foil is few in pinholes, flat in plate shape and smooth in surface and has the good mechanical properties that the tensile strength ranges from 75 MPA to 95 MPA, the transverse elongation is larger than or equal to 1.4%, and the longitudinal elongation is larger than or equal to 2.0%; and the performance requirements of the aluminum foil for preparing the anti-counterfeit label can be met.

The invention provides a working roll capable of reducing the transverse thickness difference of cold-rolled strip steel and a working method, and relates to the technical field of cold rolling process.The middle position of a roll body of the working roll is provided with roll convexity, symmetrical strip steel edge thinning areas are arranged at the positions, corresponding to the two side edges of the strip steel, of the roll body, and small-diameter areas are formed; the diameter of the roller body corresponding to the strip steel edge thinning area is smaller than the diameter of the roller convexity in the middle of the roller body; wherein the strip steel edge thinning area is an extension area of the part of the strip steel width and the edge of the strip steel in the width direction and is used for counteracting the thickness difference caused by too high rolling pressure of the edge of the strip steel in the rolling process. According to the method, rolling mill equipment and rollers do not need to be transformed, and roller consumption of the rollers is not increased. The roll shape can be achieved through grinding of a grinding machine, and the transverse thickness difference of strip steel is smaller than 0.0068 mm.

The present application discloses a nip roller, pole piece flattening equipment and a pole piece production system. The nip roller includes: a roller body. The side surface of the roller body is provided with a plurality of ridges. Each ridge is provided with a first part and a second part, where the first part is provided with part of first threads, the second part is provided with part of second threads, and a rotation direction of the first threads is opposite to that of the second threads; rotation directions of the first threads are the same, and rotation directions of the second threads are the same; and plurality of ridges are sequentially arranged at intervals in a rotation direction of the roller body, lead angles of the first threads on the first parts are sequentially decreased, and lead angles of the second threads on the second parts are sequentially decreased.

The utility model discloses a thickness-variable metal tabletting device which comprises a connecting plate, a supporting frame is arranged on the outer side of the connecting plate, a driving motor is fixedly installed on the outer side of the supporting frame, tabletting rollers are fixedly installed at the output end of the driving motor, and two groups of tabletting rollers are arranged in a bilateral symmetry mode relative to the midpoint of the connecting plate; the adjusting assembly is mounted on the outer side of the connecting plate; the lubricating assembly is installed at the upper end of the supporting frame. According to the thickness-variable metal tabletting device, when a gap between rollers needs to be adjusted, the output end of a servo motor drives a different-direction threaded rod to rotate by operating the servo motor, and the different-direction threaded rod rotates to drive threaded connectors at the two ends to move in the opposite direction or in the reverse direction; the two sets of threaded connectors move oppositely or reversely to drive the tabletting rollers at the two ends to move along with the two sets of threaded connectors, the gap between the tabletting rollers at the two ends is adjusted, and therefore the metal tabletting thickness is adjusted.

The invention relates to a control method for improving EDT roller texturing efficiency and high-surface automobile aluminum plate oil storage amount. The control method comprises the steps that (1) a single-rack cold rolling mill is adopted; (2) carrying out roller surface treatment by adopting an electrode electric spark roller grinder, wherein the roughness Ra of a working roller before roughening is less than or equal to 0.4 mu m; the roughness Ra after EDT roughening is equal to 1.95 to 2.2 [mu] m; (3) a single-rack cold rolling mill is adopted for production, the rolling oil temperature is 35 + / -5 DEG C, and the rolling oil pressure is 6.0-9.0 bar; (4) an air cushion type continuous annealing line is adopted for cleaning and solid solution aging treatment; (5) carrying out surface appearance and pit size measurement on the prepared aluminum plate by adopting a 3D optical microscope; and (6) the manufactured aluminum plate is measured through a 3D non-contact optical contourgraph. By means of the method, the requirements for the surface roughness Ra and Rpc of the automobile sheet can be met, the downstream stamping cracking risk and the corrosion spot defect caused by the too large surface pit diameter are reduced, the better high-surface automobile sheet, the higher aluminum sheet surface oil storage amount and the lower friction coefficient can be obtained, and the EDT roller texturing working time can be saved.

The invention discloses a high-performance wide precision zirconium alloy strip as well as a preparation method and application thereof. By strictly controlling the content of key elements in the zirconium alloy raw material and the structure before cold rolling, the deformation resistance is reduced, and the processing plasticity is improved; the material, the roll shape curve and the surface quality of a cold rolling working roll suitable for cold rolling of the zirconium alloy strip are strictly controlled, the rolling stability is improved, the strip thickness-rolling parameter matching relation is established in stages, the pass deformation is improved, and work hardening is reduced; small-angle oblique welding seam tailor-welding is adopted, so that welding seams sequentially pass through a rolling deformation area, the average unit pressure of the welding seams is reduced, welding seam cracking is reduced, tailor-welding coiling cold rolling stable control over the wide precision zirconium alloy strip is achieved, and machining of the precision strip with the width larger than or equal to 500 mm and the thickness smaller than or equal to 0.2 mm can be achieved.

The invention discloses equipment and a method for customizing front and back morphology structures of an invar alloy ultra-thin strip, and belongs to the field of invar alloy ultra-thin strip processing. The equipment comprises a working roller with differentiated surface topography, a first middle roller with a polyurethane-based organic material coating layer, an ultrasonic clamping device, an integrated tension weighting control system and a central control unit. By configuring different surface roughness of the upper working roll and the lower working roll and combining stable transverse pressure stress and axial ultrasonic vibration provided by the first middle roll, asymmetric plastic flow and shape copying of metal on the front face and the back face of the strip are achieved. In the rolling process, plate shape defects caused by friction differences are dynamically compensated by cooperatively adjusting the roll shifting amount of the first intermediate roll and the convexity of the backing roll saddle, finally, customized production of the 4J36 invar alloy ultra-thin strip with the thickness of 15 microns is achieved, the A face and the B face of the strip have different surface roughness, and the surface roughness of the strip is greatly improved. And the specific requirement of a fine metal mask plate pore-forming process on the surface state of the base material is met.

The invention relates to a preparation method for rapidly improving the glossiness of a mirror-finished aluminum alloy strip. The aluminum alloy strip used in the method is subjected to a cold-rolling homogenization treatment. The method comprises the following steps: S1: before the cold-rolling mirror-finishing pass of the aluminum alloy strip, the roughness of an entrance color-adjusting roller is set to 0.01-0.30 μm; S2: 2) during the cold-rolling mirror-finishing pass of the aluminum alloy strip, the lower tangent position of an upper roller of the entrance color-adjusting roller is 0-10 mm lower than the roller surface height of a lower roller, and the linear speed of the entrance color-adjusting roller is 10-100 m / min greater than the linear speed of a working roller of a rolling mill; S3: during the cold-rolling mirror-finishing pass of the aluminum alloy strip, the speed of the working roller of the rolling mill is ≤200 m / min. By optimizing the surface roughness and the pressing depth of the cold-rolling entrance color-adjusting roller, the mirror-finished aluminum alloy strip is rapidly prepared and a higher surface glossiness is obtained, thereby increasing the material preparation production efficiency and achieving a good mirror-finished effect on the finished product.

The utility model relates to a battery pole piece hot roller, and belongs to the technical field of battery production, the battery pole piece hot roller comprises a roller shaft, a roller sleeve, a first cover body, a second cover body, n flow channels, a first rotating shaft, a second rotating shaft and a filter cone, a first gap is formed between the roller sleeve and the roller shaft, and a second gap is formed between the first cover body and the roller shaft, a third gap is formed between the second cover body and the roller shaft, the n flow channels are separated from one another, the parts, located in the first gap, of the flow channels are spiral, and a filter cone is arranged in the liquid inlet channel of the first rotating shaft. According to the battery pole piece hot roller, it can be guaranteed that fluid media make full and uniform contact with the roller shaft and the roller sleeve, the temperature difference of the surface of the roller sleeve is reduced, impurities existing in the fluid media can be prevented from entering a flow to block a flow channel, and normal circulation of the fluid media is guaranteed.

The invention relates to the field of alloy wire machining, in particular to a large-width-to-thickness-ratio flat wire slitting rolling method which comprises the steps that a roughing mill unit, an intermediate mill unit and a finishing mill unit are adopted, and hole pattern system parameters and gradient distribution pass deformation of the three units are designed correspondingly; the wire with the circular cross section is rolled by the roughing mill unit, the intermediate mill unit and the finishing mill unit in sequence and finally rolled into two flat wires with the large width-to-thickness ratio, the cross section sizes and the shapes of the two flat wires are identical, the width-to-thickness ratio is larger than 7, and the technical problems that in the prior art, produced flat wires with the large width-to-thickness ratio are large in width size fluctuation and low in production efficiency are solved.