384 results about "Rolling speed" patented technology

The invention discloses a rolled piece temperature control system based on a steel rolling process, which relates to the technical field of steel rolling and comprises a detection module, a control module, an execution module and a cooling module, the detection module comprises infrared thermometer arrays, an ultrasonic thickness gauge, an electromagnetic flowmeter, a pressure transmitter and a thermal resistance thermometer, and the infrared thermometer arrays are used for being arranged in front of and behind a cooling section and respectively collecting initial temperatures before entering a cooling system. Through the self-adaptive PID algorithm, the finite difference heat conduction model and the Smith pre-estimation compensation strategy are combined, the problem of control delay caused by the large lag characteristic in the cooling process is solved, control parameters can be dynamically adjusted according to the rolling speed, the steel grade characteristic and the like, temperature adjustment better fits the actual working condition, and the control precision is improved. The phenomenon of supercooling or insufficient cooling in a traditional control mode is fundamentally avoided, and the uniformity and stability of the performance of rolled pieces are guaranteed.

The invention provides a production method of a steel wire rod and a welding wire, and the production method of the steel wire rod comprises the following working procedures sequentially performed on a square billet: a heating working procedure: the square billet sequentially passes through a preheating section, a heating section and a soaking section, the temperature of the preheating section is controlled to be 820-870 DEG C, the temperature of the heating section is controlled to be 950-1000 DEG C, the temperature of the soaking section is controlled to be 1000-1040 DEG C, and the total heating time is 70-90 minutes; in the rolling procedure, rough rolling, intermediate rolling and finish rolling are conducted on the heated square billet to obtain a wire rod, the finish rolling inlet temperature is controlled to be smaller than or equal to 850 DEG C, the rolling speed is controlled to be 100-110 m / s, and the spinning temperature is controlled to be 780-810 DEG C; and a cooling process: after spinning, controlling the cooling speed to be less than or equal to 0.6 DEG C / s, and cooling the wire rod to 500-550 DEG C. According to the production method of the steel wire rod, the steel wire rod has a small-size structure, drawing is facilitated, the mechanical property of the same circle is uniform, the thickness of the oxide layer is uniform, and shelling is facilitated.

The invention belongs to the technical field of cobalt-based alloy machining, and particularly relates to high-strength cobalt-based alloy rolling machining equipment which comprises a rack and a cooling system, an upper roller and a lower roller are installed on the rack, one end of the rack is fixedly connected with a first motor, and the first motor is connected with the end of the lower roller through a reduction gearbox; and the other end of the lower roller is mounted on the bearing seat. The device further comprises a thickness acquisition module and a stress acquisition module. The thickness acquisition module and the stress acquisition module are used for monitoring the thickness and rolling pressure fluctuation of a rolled plate in real time, the control module is used for generating a corresponding fluctuation coefficient, and the thickness fluctuation coefficient and the stress fluctuation coefficient are comprehensively analyzed to generate an evaluation coefficient; and the roller spacing, the rolling speed and the working state of a cooling system are dynamically adjusted according to the evaluation result, so that the rolling process can adapt to material characteristics and working condition changes, the thickness uniformity of rolled plates is effectively improved, and the adverse effect caused by abnormal fluctuation of rolling pressure is reduced.

The utility model discloses a special-shaped lithium strip rolling and shaping device which is sequentially provided with a lithium strip placing mechanism and a special-shaped rolling mechanism along a processing path, the lithium strip placing mechanism is used for placing a lithium ingot; the special-shaped rolling mechanism comprises a first special-shaped roller and a second special-shaped roller which can move towards each other and away from each other, the outer surface of one of the first special-shaped roller and the second special-shaped roller is provided with a circumferentially-arranged convex strip, the outer surface of the other one of the first special-shaped roller and the second special-shaped roller is provided with a circumferentially-arranged groove, and the convex strip and the groove are oppositely arranged. The convex strips are matched with the grooves to press indentations on the lithium strip; after the scheme is adopted, the problem of poor production quality of the existing rolling and shaping device can be solved, the rigidity of a lithium strip can be improved, the tension control of unwinding of the rolled lithium strip can be better controlled, the flowability of lithium can be reduced, the problem of material stacking in the rolling process can be better solved through indentations, the rolling speed can be increased, and the production efficiency and the qualified rate can be improved.

The invention belongs to the field of non-ferrous metal cast rolling production equipment, and relates to a front cooling high-speed cast rolling machine and a production method thereof. The pair of casting and rolling rollers is mounted in the casting and rolling archway; the casting and rolling transmission system is used for driving the casting and rolling rollers to rotate; the rotary cooling system is used for cooling the casting roller; the belt type pre-cooling device is mounted on the cast-rolling archway and is positioned at the upstream of the cast-rolling roller, and the belt type pre-cooling device comprises an upper cooling steel belt and a lower cooling steel belt which are arranged to form a cooling channel for receiving and cooling the casting molten aluminum; the belt type pre-cooling transmission device is used for driving the upper cooling steel belt and the lower cooling steel belt to move; the controlled cooling spraying system is used for cooling the upper cooling steel strip and the lower cooling steel strip; and the belt type pre-cooling device is configured to pre-cool the casting molten aluminum before the casting molten aluminum enters the casting roller, so that the liquid-solid phase ratio of the casting molten aluminum is reduced, and the purposes of shortening the cooling and solidification time, improving the casting and rolling speed and increasing the productivity are achieved.

According to the high-quality high-speed wire rolling method for the low-alloy high-speed steel wire rod based on continuous casting forming, gradient heating is conducted through the step type heating furnace, preheating of a continuous casting blank is uniform, and phase change stress is reduced. The initial rolling temperature is set and controlled to be 1060-1100 DEG C, the finish rolling temperature is controlled to be 950-1050 DEG C, the spinning temperature is controlled to be 980-1030 DEG C, and the highest rolling speed is 25 m / s. And after rough rolling, induction heating temperature compensation is carried out to increase the surface temperature of the blank, the temperature is set to be 1000-1040 DEG C, the temperature compensation time is controlled to be 10-20 s, and surface cracks and head wind caused by too low temperature are prevented. And closing the cover plate after spinning, adopting heat collection, immediately entering a slow cooling tunnel furnace for furnace cooling after doffing, and discharging for annealing after 48 hours or longer. A continuous casting technology is used for replacing a traditional die casting technology, controlled rolling and controlled cooling in the rolling process are matched, composition segregation is remarkably reduced, the core quality is improved, carbides are effectively refined, the uniformity of products is guaranteed, the production efficiency is improved, the production cost is reduced, and the influence on the environment is reduced; and a new process and a new route are provided for producing the high-quality low-alloy high-speed steel wire rod.

The invention discloses a cold rolling speed-rolling force-tension cooperative control system and method for a composite board, and the method comprises the steps: firstly, achieving the multi-step dynamic prediction of rolling key parameters through the time sequence feature extraction capability of a GRU network based on the cold rolling data of a multi-layer composite board, and achieving the feed-forward control through online optimization; a fuzzy PID self-adaptive compensation strategy is combined, so that the influence of external disturbance and parameter time variation is effectively inhibited; and the two methods are combined in a weighted fusion manner, so that the perspectiveness is ensured, the real-time disturbance influence is considered, and the cold rolling speed-rolling force-tension cooperative control of the composite plate is realized. According to the cold rolling speed-rolling force-tension cooperative control system and method for the composite board, the control effect is better, higher generalization ability and anti-interference performance are achieved, the control precision and stability of cold rolling of the multi-layer composite board are greatly improved, and the system and method can be widely applied to the cold rolling production process of the multi-layer composite board.

The invention relates to a production method of thin cold-rolled strip steel for food cans, which comprises the following steps of: smelting molten steel according to preset smelting components, and continuously casting after smelting; the casting blank subjected to continuous casting enters a hot rolling procedure, the final rolling temperature of the casting blank corresponds to the carbon content, and finally hot-rolled strip steel with the thickness of 2.0-2.3 mm is obtained; hot-rolled strip steel enters a rolling procedure after being subjected to acid rolling uncoiling, a five-rack rolling mode is adopted for acid rolling, and the total reduction rate is controlled to be 91%; coiling and then entering a continuous annealing process; in the annealing furnace, the annealing temperature and the strip steel speed are in a proportional relation, and finally finished strip steel is obtained. The thin-gauge strip steel can be produced at a high cold rolling speed, meanwhile, vibration of the rolling mill is effectively relieved, the production cost is reduced, and the product quality is not affected.

The invention discloses a rolling force prediction method based on a deformation resistance and rolling force coupling model of a tandem cold mill, which comprises the following steps of: establishing a deformation resistance model of the tandem cold mill for realizing prediction of rolling speed on deformation resistance; a total rolling force model of the cold continuous rolling mill is established and used for predicting the total rolling force in the cold continuous rolling process; establishing a deformation resistance and rolling force coupling model parameter data set; the deformation resistance model of the cold tandem mill is coupled with the total rolling force model of the cold tandem mill, and a deformation resistance rolling force coupling model based on the length of the deformation area is obtained; based on a training set in the parameter data set of the deformation resistance rolling force coupling model, parameter optimization is conducted on the deformation resistance rolling force coupling model based on a differential evolution algorithm, training of the deformation resistance rolling force coupling model is achieved, and the trained deformation resistance rolling force coupling model is obtained; and inputting the test set into the trained deformation resistance and rolling force coupling model to predict the rolling force of the cold tandem mill.

The embodiment of the invention discloses a rolling method for effectively relieving anisotropic titanium alloy TC4 thin strip coils and the titanium alloy TC4 thin strip coils, and relates to the technical field of alloy rolling. Comprising the steps that a leading tape is welded to the TC4 titanium alloy coiled material, the TC4 titanium alloy coiled material is placed on an uncoiling machine, and tension is formed on the TC4 titanium alloy coiled material through a tension roller; warm rolling is conducted on the TC4 titanium alloy coiled material at the temperature of 650-750 DEG C, the rolling speed is 500-800 mm / s, the single-pass reduction rate is 10-20%, reciprocating rolling is conducted under the condition that the asynchronous ratio of an upper roller to a lower roller is 1-1.3, and heat preservation is conducted on the TC4 titanium alloy coiled material after each pass of rolling is completed in a furnace for 10-25 min; and the TC4 titanium alloy coiled material rolled to the required thickness is subjected to annealing treatment under the argon protection condition, the annealing treatment temperature ranges from 850 DEG C to 950 DEG C, and the heat preservation time ranges from 20 min to 40 min. The rolling method is high in production efficiency, the difference between the tensile strength of the obtained titanium alloy plate in the direction parallel to the rolling direction and the tensile strength of the obtained titanium alloy plate in the direction perpendicular to the rolling direction is small, and anisotropy of the titanium alloy plate is greatly relieved.

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 compression roller device for testing the peel strength of the adhesive tape comprises a placing table, a driving assembly and a rolling assembly, and a sample groove is formed in the top surface of the placing table in the length direction; the rolling assembly comprises a compression roller suspended at the top of the sample groove, and two ends of a roller shaft of the compression roller are respectively driven by a pair of cylinders to lift along the longitudinal direction; the air cylinder is driven by the driving assembly to transversely move in the length direction of the sample groove. The driving rods of the two air cylinders are driven to drive the roller seats to drive the pressing rollers to move in the height direction, the pressing rollers are controlled to press or be away from a sample plate on the placing table, then the sliding blocks drive the air cylinders to slide in the length direction of the first lead screws, and therefore it is guaranteed that the rolling speed and pressure are kept consistent when adhesive tape on the sample plate is pressed; and a relatively large operation error on a measurement result during a peel strength test is avoided, and the measurement accuracy is improved. And through the pressing assembly, the stability of the adhesive tape and the sample plate in the pressing process is kept, the pressing effect is good, the efficiency is high, and very high practicability and wide applicability are achieved.

The invention discloses a preparation method of a copper bar with zero high-temperature heating defect, which comprises the following steps of: smelting, up-drawing continuous casting, rolling, coiling, peeling, multi-pass coiling, reserved bottom annealing and drawing, the hydrogen embrittlement grade of the copper rod subjected to upward continuous casting reaches the second grade or below; in the rolling process, the rolling speed is 3-10 m / min, and the machining rate is larger than or equal to 30%. The hydrogen embrittlement grade of the copper rod is reduced, the surface defects of the copper rod are eliminated, and the liquid leakage condition during high-temperature heating is avoided by raising the height of the cooling water tank during upward continuous casting and combining cold machining modes such as rolling and coiling.

The invention provides an aluminum alloy round aluminum rod production process optimization control method, and relates to the technical field of control optimization, and the method comprises the steps: obtaining initial process parameters of each production link, and constructing a weight matrix; collecting dynamic output characteristics and environment interference parameters of each production link in real time; constructing a smelting-casting correction model, and predicting and outputting a casting temperature correction parameter and a casting speed correction parameter; constructing a casting-rolling correction model, and predicting and outputting a rolling temperature correction parameter and a rolling speed correction parameter; constructing a rolling-heat treatment correction model, and predicting and outputting a heat treatment temperature correction parameter and a heat preservation time correction parameter; and on the basis of the correction parameters output by all the models, progressive control parameter correction is carried out on casting, rolling and heat treatment links in combination with a preset fluctuation early warning threshold value, and the weight matrix is dynamically updated according to the correction effect. The technical problems that in the prior art, in aluminum alloy round aluminum rod production, product performance fluctuation is large, and the percent of pass is low are solved.

The invention discloses a roller grinding management method based on the surface quality of a copper plate strip, and aims to solve the problems that existing roller grinding depends on experience, positioning is inaccurate, and grinding is excessive or insufficient. The method comprises the following steps: collecting waveform data of copper print defects and flatness on the surface of a copper plate strip, and performing timestamp synchronous calibration with a rolling speed and a coil length counting signal of a rolling mill; constructing a roller damage reverse diagnosis mechanism, calculating a damage angle in combination with a copper printing coordinate, identifying a damage type, and calculating a wear depth; differentiated grinding work orders are generated according to different damage types, and high-precision positioning grinding is executed; and after returning to the production line, carrying out on-line real-time monitoring and off-line sample rechecking on the original damaged position, dynamically adjusting parameters and judging the grinding fit state. Precision, differentiation and closed-loop management of roller grinding are achieved, the grinding efficiency is effectively improved, the service life of the roller is effectively prolonged, the surface quality of a copper plate strip is remarkably improved, and the defect rate is reduced.

The invention relates to an aluminum plate casting and rolling control method and system, and the method comprises the steps: collecting real-time technological parameters, including molten aluminum temperature, aluminum plate thickness, rolling speed, rolling pressure, cooling speed and surface quality information, in an aluminum plate casting and rolling process, and predicting aluminum plate temperature distribution, stress strain, thickness change and potential defects based on thermodynamics and mechanical models; the casting speed, the rolling speed, the rolling pressure and the cooling condition of the molten aluminum are dynamically adjusted, closed-loop control is achieved, the system comprises a data acquisition module, a data processing and analysis module, a control and execution module and a man-machine interaction and visualization module, and the system supports automatic correction of thickness deviation and surface defects, abnormal alarm and historical data analysis. The method adopts model predictive control, an artificial intelligence algorithm or a hybrid optimization algorithm to realize adaptive control. The method has the advantages that the thickness uniformity and the surface quality are optimized, the production efficiency and reliability are improved, and the safe, intelligent and efficient operation effect in the aluminum plate casting and rolling process is achieved.

The present disclosure relates to a press bonding apparatus for an electrode foil of an all-solid-state secondary battery including an asymmetric rolling press element that may precisely adjust the supply speed and rolling speed while preventing damage to metal foils, thereby improving the uniformity and coating flatness of the electrode foil.

The invention relates to a strip steel parameter setting method under hot rolling fast-paced production, and belongs to the technical field of hot continuous rolling plate production methods. According to the technical scheme, the length of the tail of the strip steel out of an F7 finishing mill is collected, the accurate position of the tail of the strip steel on a laminar flow roller way is accurately judged, and accurate setting of model control completion points of the strip steel at different rolling speeds is achieved by applying the position of the strip steel on the laminar flow roller way; and the length is flexibly set on an operation interface according to the thickness of the strip steel and the rolling speed, so that the model can timely collect a strip steel control completion point under different rolling rhythms of a hot rolling production line. The method has the beneficial effects that the model is ensured to accurately set and control each coil of strip steel, the quality problem that the performance of a product is not consistent due to the fact that the strip steel cannot receive set data under fast-paced production can be effectively eradicated, and on-site implementation is facilitated.

The invention discloses a composite plate hot rolling speed-deformation-pressure coupling control system and method, and the method comprises the steps: building a time-space sequence prediction model through employing a long-short-term memory network based on the hot rolling data of a multi-layer composite plate, predicting the rolling speed, rolling force and deformation, and obtaining the deformation of the multi-layer composite plate according to the deviation between the prediction quality and the target quality. And carrying out feed-forward correction on the roll gap by adopting a multi-target balance optimization algorithm. On the basis of feed-forward correction, the residual error between the actual thickness value and the set outlet thickness is further considered, a roll gap feedback adjustment strategy is designed, and composite plate hot rolling speed-deformation-pressure coupling control is achieved. The composite plate hot rolling speed-deformation-pressure coupling control method is high in control precision, the defects of a traditional method are overcome, speed-deformation-rolling force dynamic coupling control is improved, and the method can be widely applied to multi-layer composite plate hot rolling.

The invention discloses a low-cost and high-strength two-phase titanium alloy, which contains Ti and inevitable impurity elements, and also contains the following chemical elements in percentage by mass: 5.0%-7.0% of Al, 3.6%-4.5% of V, 0.4%-1.6% of Cr, 0.5%-1.3% of Fe and 0.06%-0.20% of O. The invention further discloses a manufacturing method of the two-phase titanium alloy. The manufacturing method comprises the steps that material preparation is conducted, wherein raw materials comprise sponge titanium, ferrochrome, TC4 titanium alloy return scraps and metal aluminum; smelting cast ingots; carrying out homogenization treatment; one-fire multi-pass rolling is adopted, the rolling speed is firstly slow and then fast during rough rolling, the rolling speed is firstly fast and then slow during finish rolling, online reversing is carried out between rough rolling and finish rolling, and air cooling is carried out after rolling.

The invention relates to the technical field of metal rolling and cooling, in particular to a flexible controlled cooling method and system for copper pipe rolling, and the method comprises the following steps: selecting a rolling and cooling mode according to an identification result of copper pipe components, obtaining a copper pipe processing target, setting a processing technological process according to the rolling and cooling mode and the copper pipe processing target, the method comprises the following steps of: dividing copper pipe processing parts, acquiring the surface temperature of the copper pipe in real time according to the divided copper pipe processing parts, inverting the internal parameters of the copper pipe according to the surface temperature of the copper pipe, further performing cooling difference control, and performing control compensation on the cooling difference control through the rolling speed acquired in real time. By means of the method and device, the problem that it is difficult to carry out cooling control by considering temperature distribution of different machining parts is effectively solved, so that the cooling precision is effectively improved, quality fluctuation caused by uneven cooling is reduced, and the production efficiency of copper pipe rolling and the product quality consistency are improved.

The invention discloses rolling equipment and a rolling method for stainless steel white skin roll processing, and relates to the technical field of rolling equipment. When the rolling speed accidentally changes, the coiled material moving in the rolling state is prone to shaking, when the thickness of the coiled material is small, the thin coiled material deviates and misplaces in the rolling process, and the rolling effect is affected, through cooperation of the pressing and rolling roller and the rubber cushion ring, the coiled material in the rolling state is pressed in the process of making contact with the coiled material, and therefore the rolling effect is improved. Meanwhile, when rolling is accelerated, friction force is increased due to the fact that the rubber backing ring deforms under contact pressure and the contact area is increased, in the rotating process of the core rolling mechanism, the pressing and rolling roller obliquely moves upwards along a chute of a chute plate at the moment that the speed is accelerated, the tendency of approaching the core rolling mechanism is generated, the pressing force on the coiled material is increased, and the rolling effect is improved. And the situation that in the rolling process, the rolling speed is suddenly increased, consequently, the coiled material shakes in the moving process, and deviation and dislocation occur in the rolling process of the thin coiled material is avoided.

The application relates to a battery foil and a preparation method thereof, a battery and a power utilization device. The preparation method of the battery foil comprises the following steps: rough rolling treatment, medium rolling treatment and fine rolling treatment of a battery foil blank by using rolling oil in sequence; the rolling oil comprises base oil and rolling additives, the oil film strength alpha of the rolling oil is greater than 280 N, and the friction coefficient mu of the oil film is less than 0.05; the temperature of the rough rolling treatment is T1, the temperature of the medium rolling treatment is T2, and the temperature of the fine rolling treatment is T3, T1 < T2 < T3; the processing rate of the rough rolling treatment is S1, the processing rate of the medium rolling treatment is S2, and the processing rate of the fine rolling treatment is S3, S1 > S2 > S3; the rolling speed of the rough rolling treatment is V1, the rolling speed of the medium rolling treatment is V2, and the rolling speed of the fine rolling treatment is V3, V1 > V2 > V3. The preparation method of the battery foil can effectively improve the adhesion of the battery foil.

This invention belongs to the field of steel rolling technology, specifically relating to a method for preventing cold bending cracks in hot-rolled ribbed steel bars. This invention rapidly resolves cold bending cracks in steel bars caused by cold working stress at the bottom of the transverse ribs by limiting the angle of the transverse ribs during the steel bar die design stage, adjusting the rolling speed and temperature during the rolling process, and adjusting the roll cooling.

The invention belongs to the technical field of battery foil rolling detection, and particularly relates to a method for testing a battery foil by using double thickness gauges of an aluminum foil rolling mill, which comprises the following steps of: mounting a sensor assembly on the aluminum foil rolling mill, and acquiring roller rotating speed, rolling force and roller vibration frequency of the aluminum foil rolling mill in real time; and the calculation equipment carries out filtering processing on the original thickness data of the battery foil collected by the thickness gauge based on the roller rotating speed, the rolling pressure and the roller vibration frequency of the aluminum foil rolling mill, instantaneous fluctuation data are filtered, and infrared detectors are arranged on the two sides of a discharging port of the aluminum foil rolling mill. Filtering processing is carried out on thickness data of the battery foil by combining operation parameters of a rolling mill, interference data of vibration of the battery foil on thickness detection in the roller operation process is recognized and removed, and meanwhile detection and cleaning correction are carried out on surface impurities, so that the thickness of a battery foil body and the thickness of the impurities are accurately distinguished; the effect of eliminating false fluctuation and impurity interference is achieved, and the authenticity of thickness detection data is improved.

A method for manufacturing a pearlitic steel rail having high surface hardness, relating to the technical field of iron and steel smelting. The method comprises: feeding molten steel having undergone preliminary smelting into a ladle refining furnace, and adding an alloying element for deoxidization and alloying treatment to obtain refined molten steel, so as to further obtain a continuous casting billet; heating the continuous casting billet to a preset temperature by means of a heating furnace, and feeding the heated continuous casting billet into a rolling mill for multi-pass rolling comprising first-pass rolling and second-pass rolling, wherein during the first-pass rolling, the rolling speed is 5.0-7.5 s-1, and the rolling deformation should be 10-15%; after the first-pass rolling, the original austenite grain size is 85-115 μm; and the number of rolling passes is 9-13, and the total deformation is 85-95%; and gradually reducing the gap between rollers of the rolling mill to obtain steel rail blocks having desired specifications and shapes and performing on-line heat treatment and processing treatment on the steel rail blocks to obtain steel rails.

The utility model discloses a plate arc rolling machine, and relates to the technical field of gardening processing equipment, the plate arc rolling machine comprises a control cabinet, the control cabinet is located on one side of the plate arc rolling machine and is electrically connected with the plate arc rolling machine, the plate arc rolling machine further comprises a main body support, and the main body support is provided with a forming unit and a feeding limiting unit matched with the forming unit for use. The forming unit comprises a lifting assembly, an extrusion assembly and a power assembly, the power assembly is connected with the extrusion assembly, the extrusion assembly is connected with the lifting assembly, the lifting assembly ensures that an upper forming pressing wheel in the extrusion assembly is accurately matched with a rubber forming wheel, and the power assembly drives the forming assembly to extrude a plate; according to the device, the arc rolling speed and the pressure and the length of each section in the rolling process are controlled through the control cabinet, and the plates are pressed into different shapes through the arc rolling speed controlled by the control cabinet and the pressure and the length of each section in the rolling process.

The invention relates to the technical field of tire detection, in particular to an automobile tire detection and maintenance device for electric automobile maintenance, and the automobile tire detection and maintenance device comprises a base, a tire, two clamping and moving units and a detection assembly, the detection assembly comprises two parallel abutting wheels, two inclined abutting wheels, a connecting frame, a supporting frame and a rotating part; the parallel abutting wheels and the inclined abutting wheels abut against a tire bead of a tire, the rotating component is started to drive the connecting frame and the abutting wheels to roll on the tire bead, real contact of a hub and a rim is simulated, the abutting pressure and the rolling speed can be adjusted and increased at the moment, and meanwhile whether the tire deforms or not is observed. If the tire does not deform within the preset abutting pressure and rolling speed, the detected structural strength of the tire is qualified; therefore, the tire bead is comprehensively supported by the plurality of supporting wheels, and the real contact of the hub and the rim is simulated by continuously rolling and pressurizing, so that the accuracy of detecting the structural strength of the tire can be remarkably improved.

The invention provides a rolling oil removing method for high-wetting-tension aluminum foil, which comprises the following steps: collecting a first Dalton value and a second Dalton value, the first Dalton value being the Dalton value of the aluminum foil before rolling, and the second Dalton value being the Dalton value of the aluminum foil after rolling; rolling data and cleaning data are determined according to the difference value of the first Darn value and the second Darn value, the rolling data are the rolling speed, the rolling force and the rolling oil flow of the rolling machine, and the cleaning data are the negative pressure purging data, the electrostatic adsorption data and the infrared volatilization data of the cleaning machine; the rolling machine is controlled to run according to the rolling data, the cleaning machine is controlled to run according to the cleaning data, and a closed-loop control system is formed to ensure that the wetting tension of the aluminum foil stably reaches the standard by measuring the difference between Darn values before and after rolling in real time and dynamically adjusting rolling and cleaning parameters.

The present invention discloses a high-precision three-roller wall reduction and leveling device, comprising rollers, guide plates, and mandrels. The three rollers are all active rollers, and a guide plate is provided between adjacent rollers. The mandrel is located in a forming space surrounded by the guide plates and the rollers. The end of the mandrel with a smaller diameter is the feed end, and the billet enters the forming space from the smaller end of the mandrel. The present invention also provides a high-precision three-roller wall reduction and leveling process. Utilizing the above-mentioned high-precision three-roller wall reduction and leveling device, after the billet contacts the rollers, it spirals forward along the direction of the rolling line. Under the joint action of the rollers and the mandrel, the wall reduction and leveling rolling process is achieved, and the billet is output from the end with a larger diameter of the mandrel to complete the rolling of the seamless pipe. The present invention utilizes the guide plates to cooperate with the rollers to confine the billet within the forming space. The rollers and the mandrel cooperate to complete the wall reduction and leveling process in one pass, thereby increasing the rolling speed and avoiding the accumulation of forming errors caused by the long rolling process, thereby improving the precision and production efficiency of the seamless pipe product.