840 results about "Thin slab" patented technology

The invention relates to the technical field of alloy steel, in particular to 590MPa-grade short-process hot-dip galvanized low-density steel and a preparation method thereof. The high-strength steel is composed of the following chemical components in percentage by weight: 0.06%-0.11% of C, 0.5%-0.8% of Si, 0.7%-1.15% of Mn, 0.01%-0.04% of P, less than or equal to 0.03% of S, 3.0%-5.8% of Al, 0.01%-0.05% of Ti, 0.001%-0.004% of N and the balance of Fe and inevitable impurities. The technological process comprises the steps of smelting, medium and thin slab continuous casting and rolling, acid pickling, cold rolling and hot galvanizing. The hot-dip galvanized low-density steel has the tensile strength of more than 590 MPa and the elongation of more than 25%, is low in cost, simple in process and low in production difficulty, and can meet the requirements of environmental protection, energy conservation and emission reduction.

The invention discloses a near-net-shape endless rolling non-oriented electrical steel ultra-thin strip and a preparation method thereof, and belongs to the technical field of metal processing. According to the method, the near-net-shape endless rolling non-oriented electrical steel ultra-thin strip with the finished product thickness being only 0.05-0.15 mm is prepared through the processes of smelting, thin slab continuous casting, endless rolling hot continuous rolling, coiling, online heat preservation, acid pickling, primary cold rolling and continuous annealing, normalizing and secondary cold rolling annealing are not needed in the process, and short-process, low-cost and efficient production can be achieved. The defects that the surface of the non-oriented electrical steel ultra-thin strip is corrugated, the magnetic performance is poor, the surface is scratched and severely narrowed in the annealing process, iron loss is not easy to control, and energy consumption is high are overcome, and the prepared non-oriented electrical steel ultra-thin strip is excellent in magnetic property and can be applied to high-frequency and high-speed motors. And the development requirements of new energy and low-altitude economy are met.

The invention relates to a cabinet body structure processing device for high-voltage cabinet production, which comprises a processing rack, a displacement box mounted at the upper end of the processing rack, a sliding seat arranged on the surface of the displacement box, a welding assembly arranged below the sliding seat and displacement racks arranged at the two ends of the processing rack, and a displacement frame is arranged between the two displacement racks; the displacement frame is used for clamping and turning over a high-voltage cabinet body, an outer moving frame and an inner positioning frame are arranged on the displacement frame, an outer clamping assembly is arranged on the outer moving frame, and an inner clamping assembly is arranged at the upper end of the inner positioning frame; by arranging a multi-point internal and external cooperative clamping and supporting structure, bidirectional mechanical constraint on a thin plate cabinet body in the whole welding process is achieved, the limiting effect on a plate body is improved, meanwhile, a pressing assembly is driven in the working process of a welding gun, angular deformation and wave deformation caused by thermal expansion and cold contraction are effectively restrained, and the welding quality is improved. The diagonal deviation control quantity of the cabinet body is small, and the assembly precision and the sealing performance between the door body and the cabinet body are improved.

The invention belongs to the technical field of thin plate laser welding, and particularly relates to a curved-surface thin plate laser welding device which comprises a welding base. A first supporting frame is arranged on the welding base. The upper fixing base and the lower fixing base are matched with a plurality of short rods to adaptively clamp different types of curved-surface thin plates, and are matched with two laser welding heads to perform double-sided welding, so that the effect of performing counterpoint double-sided laser welding on the different types of curved-surface thin plates is achieved, traditional laser equipment which is difficult to perform double-sided counterpoint welding on the curved-surface thin plates is replaced, and the production efficiency is improved. The multiple short rods on the upper fixing base and the lower fixing base can conduct adaptive clamping according to the curved surface shapes of the thin plates, the welding precision and stability are improved, welding deviation caused by the irregular curved surface shapes of the thin plates is avoided, the two oppositely-arranged laser welding heads can flexibly move to the upper and lower opposite seams of the two curved surface thin plates, and the welding quality is improved. And laser double-face simultaneous welding is achieved, the welding efficiency is improved, a welded joint is firmer, and the overall welding quality is improved.

The invention belongs to the technical field of welding, and provides a laser welding tool and method for a thin-wall titanium alloy runner plate. A small-diameter welding wire is adopted, the laser power is adjusted, protective gas purging is started, and laser welding is conducted in the anticlockwise direction from the left lower portion; in the welding process, active cooling is carried out at the same time until welding is completed; after welding is completed, the fixing module is detached; the active cooling specifically comprises the steps that absolute ethyl alcohol is sprayed on the welded surface, after absolute ethyl alcohol on the surface of the cold plate (3) to be welded volatilizes completely and ventilation is kept for 2 min, protective gas is started again for purging for 10 s, and one-time active cooling is completed. The method is used for solving the problem that a laser welding method in the prior art easily causes heat accumulation deformation of the titanium alloy sheet, so that the welding precision of the sheet is ensured.

The invention belongs to the technical field of cold-rolled oriented electrical steel strip manufacturing, and particularly relates to a low-noise cold-rolled oriented electrical steel strip for a transformer, a preparation method of the low-noise cold-rolled oriented electrical steel strip and the transformer. The method comprises the following steps: heating a sheet billet to obtain a heated sheet billet, carrying out hot continuous rolling on the heated sheet billet to obtain a hot-rolled sheet, and sequentially carrying out normalizing pickling, primary cold rolling, decarburization annealing, secondary cold rolling, MgO separant coating, cover type high-temperature annealing, stretching leveling and insulating coating on the hot-rolled sheet to prepare a finished oriented electrical steel strip with the thickness of 0.15-0.20 mm, the slab comprises the following chemical elements in percentage by mass: 0.02% < = C < = 0.08%, 2.50% < = Si < = 3.20%, 0.10% < = Mn < = 0.50%, 0.02% < = P, 0.05% < = Als < = 0.15%, 0.10% < = Cu < = 0.50%, 0.05% < = Sb < = 0.15%, 0.005% < = S < = 0.015%, 0.005% < = N < = 0.015%, 0.004% < = Ti and the balance of Fe and inevitable impurities. The iron loss P1.7 / 50 of the cold-rolled oriented electrical steel strip finished product prepared by the method is less than or equal to 1.00 W / kg, the iron loss B8 is greater than or equal to 1.94 T, and the test noise of a transformer manufactured by the steel strip at a position of 3m is less than 15dB.

The invention provides a rapid connection system for aluminum alloy sheets, and relates to the field of material connection, the rapid connection system comprises a conveying assembly, a shearing assembly, an auxiliary lifting assembly, a sensing system and a heating device, the conveying assembly is composed of two conveying mechanisms, the shearing assembly is arranged between the two conveying mechanisms, and each conveying mechanism is composed of a plurality of conveying rollers; the shearing assembly comprises an upper shearing head and a lower shearing head, and shearing grooves are formed in the middle of the bottom face of the upper shearing head and the middle of the top face of the lower shearing head correspondingly. The auxiliary lifting assembly is arranged on the outer sides of the two conveying rollers of one conveying mechanism and comprises two auxiliary lifting rollers and a lifting device. The sensing system is arranged corresponding to the shearing assembly. According to the system, rapid and efficient connection between the aluminum alloy sheets can be achieved, real-time monitoring can be conducted through intelligent sensors such as a temperature sensor and a pressure sensor in the connection process, and the problem of connector defects caused by the external environment is solved.

The invention discloses a preparation method of a high-strength 5000 series aluminum alloy sheet for anodic oxidation. An aluminum ingot, an aluminum intermediate alloy ingot and electrolytic aluminum water are used as raw materials, and the high-strength 5000 series aluminum alloy sheet for anodic oxidation is prepared through the steps of smelting, casting, homogenization treatment, hot rolling, cogging cold rolling, intermediate annealing, finished product low-temperature cold rolling, stress relief annealing, cleaning, straightening and trimming and finished product shaft splitting. The tensile strength of the aluminum alloy material with the thickness of 0.5-2.0 mm is larger than or equal to 280 MPa, the yield is larger than or equal to 240 MPa, and the ductility is larger than or equal to 8%. The grain size of any position of the surface of the obtained final product is smaller than or equal to 30 microns, the grain aspect ratio is 1.0-1.6%, it can be guaranteed that no material lines and different color lines appear on a 150 # zircon sand blasting anode, and the requirements for high-strength punch forming and anodic oxidation of the product are met.

The invention relates to the technical field of intelligent manufacturing equipment industry, in particular to a length-adjustable cutting device for aluminum profile machining, which comprises an intelligent manufacturing workbench, a gear disc rotationally clamped outside the top end of one side of the intelligent manufacturing workbench, and a central shaft slidably clamped in the middle position in the gear disc in a penetrating manner, according to the aluminum profile cutting device for the intelligent manufacturing industry, the arranged inner supporting assembly is composed of a plurality of abutting thin plates and first electric telescopic rods, so that when a thin-wall tubular aluminum profile is cut, the first electric telescopic rods extend, the abutting thin plates expand outwards and are tightly attached to the inner wall of the aluminum profile, and uniform and stable inner supporting is formed; compared with a traditional two-point clamping and positioning mode, the inner supporting assembly can evenly disperse cutting force generated during saw blade cutting, the situation that local stress of the aluminum profile is too large is avoided, and the deformation problems of ovality out-of-tolerance, pipe opening wrinkling and the like caused by uneven stress of the thin-wall aluminum profile are greatly reduced.

The invention provides a positive and negative pressure pulse electric arc welding and additive manufacturing method which comprises the following steps: inducing electric arc plasma to generate a negative pressure electric arc with an anti-gravity adsorption effect through a current-magnetic field-hollow tungsten electrode-gas collaborative design, and forming a time sequence coupling process with a positive pressure electric arc. The core of the method is that a magnetic control positive pressure and negative pressure electric arc welding external field is cooperated with a molten pool reconstruction forming mechanism, that is, the dynamic and thermodynamic states of a molten pool are accurately balanced by dynamically switching the electric arc pressure direction and regulating and controlling the action proportion and alternating frequency of negative pressure and positive pressure electric arcs. A self-adaptive magnetic field threshold model based on current intensity and a gas mode is combined with variable polarity power supply parameters and gas flow rate cooperative control, and the problems of thin plate welding fusion penetration and thin-wall additive molten pool instability are effectively solved. According to the method, a welding wire, powder or laser composite manufacturing mode can be integrated, the forming precision and performance of a complex structure are remarkably improved, and an innovative technical support is provided for high-quality and high-efficiency welding and additive manufacturing.

The invention relates to low-density steel based on short-process hot galvanizing and a preparation method of the low-density steel. The steel comprises the following chemical components in percentage by mass: 0.05%-0.13% of C, 0.4%-0.9% of Si, 0.6%-1.2% of Mn, less than or equal to 0.02% of P, less than or equal to 0.03% of S, 3.0%-6.0% of Al, 0.012%-0.052% of Ti, 0.0012%-0.0042% of N and the balance of Fe and inevitable impurities. The production process has the advantages that the production process of converter or electric furnace smelting, medium and thin slab continuous casting and rolling, acid pickling, cold rolling, nickel plating and hot galvanizing is adopted, the hot-galvanized low-density steel with the yield strength of 330-500 MPa, the tensile strength of 590-700 MPa and the elongation rate of 25%-35% is produced, and the hot-galvanized low-density steel has the advantages of being low in density, high in formability, low in emission and high in surface quality.

The invention belongs to the technical field of steel smelting, and particularly relates to a rare earth steel smelting method based on a thin slab continuous casting and rolling production line. Comprising the following steps: (1) dynamic dephosphorization control: controlling the temperature of molten steel to be 1380-1410 DEG C, the content of FeO in slag to be 15-20%, the alkalinity of the slag to be 1.8-2.2 and the content of phosphorus at the end point to be less than or equal to 0.015% in a window period 0-6 minutes before converter smelting; and (2) converter end point carbon and oxygen regulation: the converter end point carbon content is greater than or equal to 0.08%, the end point oxygen content is less than or equal to 300ppm, and the end point inclusion density is less than or equal to 10 inclusions / mm < 2 >. Through a process chain of dynamic dephosphorization and oxygen reduction, gradient deoxidation and purification, step-by-step slag system optimization, rare earth sequential addition and whole-course protection casting, a forward circulation of molten steel cleanliness and rare earth stability is formed, the rare earth steel continuous casting problem is fundamentally solved, and technical innovation and economic breakthrough are achieved at the same time.

The utility model discloses a heat exchange plate, belongs to the field of air preheaters, solves the problem that better heat exchange efficiency cannot be obtained when a plate sheet with higher hardness is used in the prior art, and mainly adopts the technical scheme that the heat exchange plate is formed by welding two thin plates which are arranged front and back through a plurality of linear welding parts, the non-welded parts on the two thin plates are far away from each other to form an air cavity for flowing air, the left side of the air cavity is an air inlet side, the right side of the air cavity is an air outlet side, and the linear welding part is in an up-and-down fluctuating wave shape. The heat exchange plate is mainly used for improving the heat exchange efficiency while ensuring the strength of the heat exchange plate.

The invention discloses a magnesium alloy plate strip direct connection forming method and equipment system, and solves the problems of discrete process, serious oxidation and high energy consumption of a wide and thin magnesium plate. The method is realized through direct connection and cooperative control of the whole process of casting, extrusion, warm rolling and annealing, wherein a gradient solidification mold is adopted to control melt phase change, and high-frequency short-stroke stepping extrusion and dovetail groove dummy ingot are combined; pressing head return synchronously triggers a rolling mill and a loop box to perform warm compensation connection extrusion-warm rolling; tension is regulated and controlled through fuzzy PID; two-stage filtration, electromagnetic-ultrasonic composite grain refinement and CVC + AGC warm rolling are integrated; and the rolled plate is directly annealed in a nitrogen protection mobile coiling furnace. Continuous production of four procedures is achieved, oxidation heat loss is reduced, efficiency is improved by more than 50%, energy consumption per ton is smaller than or equal to 0.8 tce, the defect rate is smaller than or equal to 0.5%, the service life of a die is longer than or equal to 5000 times, thin plates with the width larger than 800 mm and the thickness + / -0.1 mm (for example, the tensile strength of AZ31 is larger than or equal to 350 MPa) can be stably produced, and the ductility is improved by 40%. The method is suitable for high-efficiency and low-consumption manufacturing of high-performance lightweight magnesium plates in the fields of aerospace and automobiles.

The invention discloses aluminum profile thin plate weld joint welding equipment which comprises a welding frame and an aluminum plate and further comprises a truss, a welding rod, a welding rod and a welding rod. The welding table is placed below the welding frame and used for placing and fixing the aluminum plate to be welded; the fixed box is arranged on the truss in a sliding manner; and the collecting box is connected with the fixing box through an auxiliary welding structure, and the collecting box is used for collecting waste generated during welding. The device has the advantages that welding waste is collected and treated in a unified mode, the storage efficiency of the waste is improved in the treatment process, continuous operation of the device is kept, and the pressing effect of the pressing wheel is matched, so that the welding position of an aluminum plate is connected naturally, flatly and attractively, and welding seams are trimmed synchronously and efficiently in cooperation with the welding speed; and during welding, high residual heat left at the welding position is used for trimming the welding position, so that the welding seam is smooth and flat, the final welding effect is guaranteed, and higher welding quality, precision and stability are provided.

The invention relates to a mixed rolling production line and a production method thereof. The production line comprises a production line A and a production line B which are arranged in parallel; the production line A comprises a continuous casting unit, a line A rough rolling unit, a line A hot coiling station, a finish rolling unit, a cooling device and a coiling unit which are collinearly arranged in sequence; the production line B comprises a heating furnace, a line B descaling device, a line B rough rolling unit and a line B hot rolling station; a furnace discharging roller way of the heating furnace, the line B descaling device, the line B rough rolling unit and the line B hot rolling station are collinearly arranged in sequence; the A-line hot rolling station and the B-line hot rolling station are connected through a transverse moving track, and a movable hot rolling device is movably arranged on the transverse moving track. The movable hot rolling device is switched between the A-line hot rolling station and the B-line hot rolling station, organic coupling of the two production lines is achieved, the thin slab production mode and the thick slab production mode of the mixed rolling production line share the finish rolling unit, the coiling machine and the like, and the equipment investment and the occupied area of the production line are effectively reduced.

The utility model relates to a PCB sheet furnace-passing jig comprising a base plate, the base plate is provided with a groove used for placing a sheet, the groove is internally provided with a plurality of first limiting nails and an elastic limiting assembly, and the first limiting nails and the elastic limiting assembly are respectively close to two opposite sides in the groove; the elastic limiting assembly comprises a sliding block and a second limiting nail, the sliding block is elastically clamped on the bottom plate, the second limiting nail is arranged on the sliding block, the sliding block can slide relative to the bottom plate so as to be close to or away from the first limiting nail, and the thin plate can be clamped to the first limiting nail and the second limiting nail. According to the utility model, through the first limiting nail arranged in the groove and the slidable elastic limiting assembly comprising the second limiting nail, the PCB thin plate can be ensured to be accurately positioned and fixed when being placed, the stability and the position accuracy of the thin plate can be maintained in a furnace passing process, and the production reject ratio caused by position deviation is reduced.

The utility model relates to the technical field of low-cycle fatigue tests, and discloses an anti-buckling tool for a low-cycle fatigue test sheet metal structure, which comprises a fixing assembly and a guide assembly, the fixing assembly comprises an upper fixing piece I, an upper fixing piece II, a lower fixing piece I and a lower fixing piece II, two screws are connected between the first upper fixing piece and the second upper fixing piece, two screws are connected between the first lower fixing piece and the second lower fixing piece, and cushion blocks are arranged on the inner side faces of the first upper fixing piece, the second upper fixing piece, the first lower fixing piece and the second lower fixing piece. Through the fixing assembly, the sample can be conveniently and quickly assembled, the low-cycle fatigue test requirement of the sheet metal structure can be met, and the lateral buckling instability phenomenon between a clamping part of equipment and the buckling-restrained tool can be reduced; through the guide assembly, when the sample bears a tension and compression cyclic load, the lateral buckling instability phenomenon in the thickness direction is prevented, and the stability of the sample is further enhanced.

The application discloses an asymmetric ring electrode cap, discards the traditional two-side uniform spherical electrode design, and adopts an asymmetric ring electrode structure, specifically, the welding end face diameter of a thin plate side electrode cap is 6-14 mm, the curvature radius is 40-100 mm, three rings are arranged, the inner ring is provided with a conical pit, and the middle ring is in the shape of an isosceles trapezoid; the welding end face diameter of a thick plate side electrode cap is not less than that of the thin plate side and not more than 14 mm, the curvature radius is not less than that of the thin plate side and not more than 100 mm, three rings are also arranged, the inner ring is provided with a conical pit, and the middle ring is in the shape of an equilateral triangle. The ring structure parameters of the two electrode caps are accurately designed to adapt to the welding requirements of plates with different thicknesses, and the welding quality and efficiency are improved. The application is particularly suitable for resistance spot welding of materials such as aluminum workpieces with large thickness ratios.

The invention relates to the technical field of welding positioners, and provides an automatic avoiding positioner for thin-plate arm body welding, aiming at solving the problems that a clamp and a welding robot interfere with each other to influence welding and cannot meet the welding requirement of a high-altitude thin-plate arm body due to the fact that a rotary body and the clamp are designed in the same structure in an existing conventional ring type positioner. A servo motor is used for controlling the position of a circular rotary clamp, accurate avoiding of the clamp during arm body welding is achieved, the problems of clamp interference and discontinuous weld joints during welding are solved, meanwhile, a plurality of self-centering lifting clamps are designed, the problem of clamping rigidity during thin-plate arm body welding is solved, and effective control over welding deformation is achieved.

The invention belongs to the technical field of sheet welding deformation leveling, and discloses a construction method and a leveling method of a sheet leveling process parameter model, and the method comprises the following steps: M1, obtaining corresponding material attributes according to a sheet material needing to be leveled on site; m2, related data of the field welding process are known; m3, the initial leveling position, the heating time, the heating current and the heating frequency are obtained according to the material attributes and the welding process parameters of the thin plate; step M4, calculating the heat flux density of the Gaussian heat source model of the heating position according to the heating current, selecting the next heating position according to the heat flux density, and obtaining a heating sequence; and step M5, repeatedly executing the steps M3 to M4, and further correcting the heating time, the heating current and the heating frequency according to the actual temperature change data to obtain a final thin plate flattening process parameter model. According to the method, data of material attributes of an actual flattening heating workpiece and actual flattening working conditions are collected, and a multi-input and multi-output thin plate flattening process parameter model conforming to field working conditions is established.

The invention relates to the technical field of wood board carrying, and discloses a material conveying mechanical arm for wood board production and processing and a using method thereof.The material conveying mechanical arm comprises a transferring mechanism, a supporting assembly is fixedly installed on the inner wall of the transferring mechanism, a driving assembly is installed on the side wall of the transferring mechanism, a second electric telescopic rod is started to stretch out, and an adsorption frame is pushed to descend; as the connecting plate is static, the connecting plate extrudes gas in the adsorption frame, negative pressure is generated at the bottom of the connecting plate until the adsorption frame drives the suction cup to make contact with the thin plate, the suction cup and the thin plate are attached, after attachment, the adsorption frame continues to move, the connecting plate makes contact with the protruding position of the first spring reset rod, and therefore the first spring reset rod is pushed to ascend; when the thin plate is conveyed, the blocking plate is driven to ascend, the blocking plate is separated from the suction cup, negative pressure at the bottom of the connecting plate enters the suction cup, the suction cup adsorbs the thin plate and flexibly clamps the thin plate, the situation that the thin plate is prone to deformation due to the fact that large extrusion force is applied to the thin plate is effectively prevented, and the integrity of thin plate conveying is guaranteed.

The invention discloses a method for rapidly detecting chemical components in a thin steel plate below 2mm by using a direct-reading spectrometer, belongs to the technical field of physical and chemical detection, and aims to solve the problem that a sample with the thickness of less than 2mm in the national standard GB / T 4336-2016 cannot be directly analyzed by using spark discharge atomic emission spectrometry. The method comprises the following operation steps: confirming conditions such as a sample preparation mode, a sample spectrum excitation limit thickness, influence of sample flatness and use of a special sample clamp, optimizing working conditions of an instrument, and establishing a method for measuring 13 elements such as C, Si, Mn, P, S, Cr, Ni, Cu, Al, Nb, V, Ti and N in a carbon steel and low alloy steel sheet with the thickness not less than 0.20 mm through spark discharge atomic emission spectrometry. And verifying the precision and accuracy of the determination result of each element, and comparing the results to show that the determination result of each element is consistent with the standard GB / T 4336-2016. The method does not need to decompose a sample, and has the characteristics of accurate and rapid determination and good stability.

The invention relates to the technical field of diffusion welding, in particular to a diffusion welding process for a large-area thin-plate structural member, which comprises the following steps of: additionally arranging flexible plates on contact surfaces of an upper welding tool and a corresponding to-be-welded plate as well as a lower welding tool and the corresponding to-be-welded plate respectively; and during diffusion welding, welding pressure is transmitted to the to-be-welded plate through the flexible plate. The diffusion welding process for the large-area thin-plate structural member aims to solve the problem that random and irregular defects are generated due to the fact that the surface of a plate of the large-area thin-plate structural member is uneven.

The invention belongs to the technical field of intelligent manufacturing, and provides a thin plate welding seam polishing control method which comprises the following steps: calculating a defect judgment parameter for any point in each cluster, judging whether the point is a defect point and a defect type according to the defect judgment parameter, clustering the defect points to form a defect cluster set, and obtaining a target removal amount of each defect cluster; determining a trajectory for the gravity center projection point set of the defect cluster, and stepping from the starting point to the ending point of the trajectory with a dynamic step length to generate a discrete path point set; the track line comprises a center line obtained through curve fitting in the welding seam direction; according to the radius of the cutter and the expected removal depth of the current pass, the position and posture of the polishing cutter are calculated for each path point; and the discrete cutter positions and postures are fitted to form a continuous cutter pose track. The method is suitable for automatic grinding of automobile door frame type welding seams, and has the advantages of being simple in engineering, high in feasibility, low in cost, robust to welding slag artifacts and the like.

According to the machining method and system for the stainless steel rectangular groove plate, the material thickness and elastic modulus parameters of a 316L stainless steel thin plate are obtained, the stress distribution state in the machining process is monitored in real time through a sensor, and if the stress value exceeds a preset threshold value, the cutting force and machining speed parameters are adjusted; a support vector machine algorithm is adopted to analyze the nonlinear relation between the material thickness and the elastic deformation, and an optimized mechanical parameter control model is obtained; according to stress control data output by the mechanical parameter control model, the machining temperature and vibration frequency information of a contact area of a tool and a workpiece is obtained, if the vibration frequency exceeds a stable machining range, the rotating speed and the feeding amount of a spindle are adjusted in real time, and the influence of thermal deformation on the groove depth precision is corrected through a temperature compensation algorithm; and determining a dynamic processing parameter combination adapted to the characteristics of the thin plate. Intelligent control over the thin plate precision machining process is achieved, and the machining precision and efficiency are effectively improved.

The invention discloses a stamping forming device for machining, and relates to the technical field of forging stamping machining, the stamping forming device comprises a stamping assembly, the stamping assembly comprises a base, a storage frame is fixed in the base, an exhaust part is arranged on the storage frame, a hydraulic cylinder is arranged at the top of the base, and a thin plate is arranged at the top of the storage frame; and the template assembly is arranged on the base and comprises an upper die fixed to the output end of the hydraulic cylinder, and an abutting piece is arranged at the bottom of the upper die. The punching device has the beneficial effects that through the arrangement of the cleaning assembly and the conveying assembly, exhausting can be conducted during punching downward movement, the interior of the storage frame is in a negative pressure state during punching upward movement reset, waste chips are actively pushed out of a die hole through the atmospheric pressure, a toothed plate moves to be matched with a gear, a driving roller rotates to feed a thin plate, and the punching efficiency is improved. While negative-pressure discharging and blocking prevention are completed, machined materials can be fed, and additional feeding equipment does not need to be arranged.

The invention relates to a wing type centrifugal impeller blade manufacturing process based on sheet forming, in particular to the technical field of centrifugal impellers, comprising a blade body, one side of the blade body is connected with a front disc, and one side, away from the front disc, of the blade body is connected with a rear disc; the blade bodies with the wing-shaped sections are formed through a specific process by means of thin plate materials, after all the blades are manufactured, the blade bodies are arranged at a specific three-dimensional space angle, the edge of one side of each blade body is connected with a disc-shaped component called a front disc, and the blade bodies are connected with the disc-shaped component. One side edge of the blade body is connected with a front disc, the other side edge of the blade body is connected with a disc-shaped component called as a rear disc, and the front disc, the rear disc and all the blade bodies jointly form a complete centrifugal impeller structure capable of efficiently conveying fluid. And the product has lighter weight and higher material utilization rate. The manufacturing process is based on the thin plate stamping and welding forming wing type centrifugal impeller blade manufacturing process.

The utility model relates to a thin slab and conventional slab coupling production unit, which comprises a thin slab production unit, a conventional slab processing unit and a rolling unit, and the thin slab production unit comprises a thin slab continuous casting machine, a fixed section tunnel furnace and a movable tunnel furnace which are collinearly arranged in sequence; the conventional slab processing unit comprises an activity response device used for responding to the movable tunnel furnace to complete transfer of the thin slab to the conventional slab processing unit and a slab heating furnace connected to the upstream of the activity response device; the rolling unit comprises a rough rolling mechanism and a finish rolling mechanism; and the movable response device, the rough rolling mechanism and the finish rolling mechanism are collinearly arranged in sequence. Coupling production of a thin slab and a conventional slab can be achieved, and the process flexibility is high; the rolling unit and the conventional plate blank treatment unit are collinearly arranged, so that the layout reasonability is high, waste of a large amount of space can be avoided, and repeated impact of a high-speed plate blank on the movable tunnel furnace during reversible rough rolling is avoided; and the sheet billet can be roughly rolled or passes through the roughing mill according to the process condition, so that the process flexibility can be further improved.

The invention relates to the technical field of aluminum alloy preparation and processing, and discloses a high-strength plasticity high-conductivity 7075 alloy preparation method which comprises the following steps: S1, two-stage soaking annealing: heating a cast ingot to a first-stage annealing temperature and preserving heat to complete first-stage soaking annealing; then the cast ingot is continuously heated to the second-stage annealing temperature, heat preservation is conducted again, second-stage soaking annealing is completed, and the cast ingot is cooled to the room temperature; the cast ingot cooled to the room temperature is heated to the hot rolling temperature for hot rolling, a plate is obtained after the cast ingot is subjected to hot rolling deformation, and the plate is cooled to the room temperature; s3, cold rolling deformation is conducted, specifically, the cooled plate is subjected to cold rolling, and the plate is subjected to cold rolling deformation; s4, carrying out two-stage solid solution treatment; s5, water quenching at room temperature; and S6, two-stage aging treatment or three-stage aging treatment. According to the 7075 aluminum alloy sheet prepared through the method, the tensile strength reaches 600 MPa, the yield strength reaches 590 MPa, the elongation reaches 12%, and the conductivity reaches 33.8% IACS. The method can utilize the existing process equipment and is suitable for industrial production.