Abstract: A fatigue bending and folding test device for an ultra-thin metal strip, including: a first driver module, a first folding module, a first diameter adjustment module, an expansion module, and a frame. The first driver module, the first folding module, the first diameter adjustment module, and the expansion module are all disposed on the frame. The first driver module includes a servo motor, a coupler, and a drive gearbox; the drive gearbox includes a driving gear shaft, a driven gear shaft, a plurality of output end covers, and a plurality of bearings. The first folding module includes an upper folding member, a lower folding member, and a first mounting base. The first clamping member includes a sliding block, a lower clamping plate, an upper clamping plate, a rotating shaft, an intermediate pressure plate, and a plurality of fixing bolts.

Abstract: A device for detecting the flatness of a sheet material includes a conveyor, a gantry, a beam, an industrial camera unit, a speed measurement unit, a vibration measurement unit, a multi-line laser, a cable carrier, an industrial controller, and a control cabinet. The conveyor is disposed beneath the gantry and includes a plurality of pinch roll assemblies for feeding a sheet material. The beam is disposed on the gantry and includes a first side and a second side. The industrial camera unit is disposed on the first side of the beam and includes at least two industrial cameras. The speed measurement unit is disposed between the at least two industrial cameras. The vibration measurement unit is disposed on the second side of the beam and includes at least two distance measurement devices. The multi-line laser is disposed between the at least two distance measurement devices.

Abstract: The invention provides a dynamic proportional-integral-derivative (PID) method for plate straightening based on changes in yield strength. The method includes the steps of determining yield strength of a plate at an initial temperature; calculating a predicted straightening force of each straightening roll based on the yield strength; obtaining a measured straightening force of each straightening roll; determining yield strength errors ??front, ??middle, and ??rear using a numerical approximation method; determining parameters of a PID controller based on the yield strength errors ??front, ??middle, and ??rear; calculating a target reduction of a corresponding straightening roll based on the yield strength error ??middle and the yield strength at the initial temperature; and adjusting a measured reduction of the current straightening roll using the PID controller with the parameters determined based on the target reduction.

Abstract: A method for preparing a multilayer metal composite pipe includes steps of: internally and externally grinding blank pipes; cleaning oil stains; assembling a multilayer metal pipe; drawing to reduce a diameter; performing high-speed friction welding at the pipe ends; performing heat treatment; performing four-roller cross-rolling; straightening; performing two-roller cold-rolling; performing cold-drawing to reduce the diameter; performing cold-expansion to reduce the diameter; performing precise cold-rolling; degreasing; brightening; performing surface grinding; cleaning dust; detecting multilayer metal interface bonding; detecting flaws; testing metal structure performance; and sizing and packaging.

Abstract: A device for binding rod bundles includes a tilting apparatus, a wire stripper, a binding apparatus, and a collection apparatus. The tilting apparatus includes a tilting platform, a hydraulic cylinder, and an articulated base. The wire stripper includes a main body, a first sliding mechanism, a second sliding mechanism, a first slide block, and a second slide block. The binding apparatus includes an electric clamp, a clamping frame, a sliding rail, a rail base, and a drive motor. The collection apparatus is hinged to the tilting apparatus; the wire stripper is disposed below the tilting apparatus; the tilting platform includes a hinge hole for receiving one end of the clamping frame. The collection apparatus includes a shaft hole for receiving one end of the tilting platform. The hydraulic cylinder is hinged to the articulated base and the other end of the tilting platform is hinged to the hydraulic cylinder.

Abstract: A robot includes a truss assembly, a walking assembly, a power unit, and a rack including a guide pillar, a second link. The truss assembly is disposed on the top of the rack. The walking assembly is disposed in the rack and fixedly connected to the rack through a bearing. The power unit is disposed on the rear end of the rack. An oil tank is provided with a hole. The truss assembly is configured to place the robot into the oil tank through the hole. The walking assembly is configured to drive the robot to move along the axis of the oil tank and to prevent the robot from toppling in the oil tank. The power unit is configured to clean the inside of the oil tank. The walking assembly includes two active walking assemblies, a drive assembly, and a folding assembly.

Abstract: A special roller machine for a metal polar plate. A box body is a square with a circular through hole in the middle part. Upper and lower pressing rollers are mounted in the circular through hole; the upper and lower pressing rollers are mounted in grooves formed in the lower sides of upper and lower sector rotating bodies through bearing seats and are connected with upper and lower rotating blocks respectively; the rotating blocks are symmetrically arranged and are connected with upper and lower servo electric cylinders through connecting rod mechanisms respectively, then the pressing rollers are finely adjusted; four identical arch-shaped plates are mounted on the inner surface of the circular through hole for locating the rotating blocks; and main transmission is implemented in such a way that a servo motor drives the lower pressing roller to move through a safety coupling, a reduction gearbox and a cross coupling.

Abstract: A system for flattening steel plates includes crane, a first conveyor, a second conveyor, a first shape detector, a second shape detector, a first rangefinder, a second rangefinder, a first detection device, a second detection device, a first idler roller, a second idler roller, a flattening machine, a first robot, a second robot, a third robot, and a fourth robot. The flattening machine is connected to one end of the first conveyor and one end of the second conveyor. The first shape detector is disposed above a middle part of the first conveyor. The second shape detector is disposed above a middle part of the second conveyor. The first rangefinder is disposed at one end of the first conveyor. The first detection device is disposed between the first rangefinder and the flattening machine. The second rangefinder is disposed on one end of the flattening machine.

Abstract: The present invention discloses a method for rolling a metal composite plate/strip, comprising the following steps: 1) selecting a metal base plate and a metal cladding plate, cleaning the surfaces of the base plate and the cladding plate to be composited until the metal matrixes are exposed; 2) sequentially laminating the base plate and the cladding plate to obtain a composite plate slab; 3) rolling the composite plate slab through a composite rough rolling mill having a corrugated roll to obtain a composite plate having a corrugated mating surface on its composite surface; and 4) flattening the composite plate having a complete corrugated cladding plate by a composite finish rolling mill to a desirable thickness to obtain a composite plate/strip.

Abstract: A short stress path-type electrode sheet rolling machine and an integrated machine equipment for manufacturing lithium battery electrode sheets, whereby the rolling machine comprises: an upper roller mechanism, a lower roller mechanism, an upper bearing base, a lower bearing base and a roller-gap adjusting mechanism; the upper roller mechanism is connected to the upper bearing base, and the lower roller mechanism is connected to the lower bearing base; the upper bearing base and the lower bearing base are connected by means of a guide shaft; the roller-gap adjusting mechanism is connected to the upper roller mechanism so as to adjust a roller gap between the upper roller mechanism and the lower roller mechanism. The rolling machine has a simpler and more reliable structure, has a shorter stress return path when performing electrode sheet rolling, and may improve rolling precision and rolling quality.

Abstract: The present invention discloses a dynamic straightening method for a left/right tilt. The method includes: drawing an unevenness curve according to a distance from a shapemeter to a surface of a plate, where there are a plurality of unevenness curves; using a barycentric formula to obtain a first barycentric coordinate of each unevenness curve; calculating a tilt value of a straightening roll corresponding to each unevenness curve according to the first barycentric coordinate of each unevenness curve; determining an unevenness curve of a current straightening roll; adjusting the straightening roll according to the tilt value of the straightening roll corresponding to the unevenness curve, to straighten the plate; and going back to the step of determining an unevenness curve of a current straightening roll until the plate is totally straightened. The present invention improves plate straightening accuracy by dynamically adjusting parameters of the straightening roll.

Abstract: A giant gully-crossing vehicle for polar scientific expeditions, including a gully-crossing bridge and a vehicle body. The vehicle body includes a stage and a travelling portion. The stage includes a top platform, a front bottom plate, a rear bottom plate and a multifunctional lock platform assembly. The front bottom plate and the rear bottom plate are capable of sliding independently relative to the top platform. The travelling portion includes a first travelling component, a second travelling component, a third travelling component, a fourth travelling component, a fifth travelling component and a sixth travelling component which are symmetrically provided at left and right sides of the stage and below the stage. Bridge bodies of the bridge components can be assembled to two gully-crossing bridges, and are connected to the multifunctional lock platform assembly when crossing gullies.

Abstract: A method for checking the design of locking assemblies is provided. A pressure on each contact surface and a torque that can be transferred by a spindle and a bushing after locking assemblies are locked are calculated. The calculated torque is compared with the designed maximum transferable torque to calculate a torque safety coefficient. Based on a minimum fit clearance, a resultant stress of components is calculated and is compared with a yield strength of the material of the components to calculate a strength safety coefficient of the components. A pre-tightening force of the bolts is obtained according to a given pre-tightening moment of the bolts. A maximum equivalent stress of the bolts is calculated to obtain a safety coefficient of the bolts. This method is able to be applied to the manufacturing of the locking assemblies.

Abstract: A giant six-legged polar research vehicle with tracked feet, including a platform, six legs arranged at six ends of the platform and six tracked feet arranged below the six legs. A monitoring device is arranged on a top cover. Six power compartments each having a steering device are arranged at six ends of a chassis in the platform. Each leg includes a main traveling device with an upper end and a lower end respectively connected to the steering device and a tracked foot, an auxiliary traveling device with an upper end and a lower end respectively connected to the chassis and the main traveling device, and a connecting device arranged on the main traveling device. The tracked foot includes a main flipping mechanism, an auxiliary flipping mechanism, a tracked foot slewing device, a crawler, a sliding plate and a suspension.

Abstract: A production line for recycling and processing waste materials of steel rolling, the production line including: an electromagnetic hoisting equipment; a conveying platform; a clamping-and-feeding device; a segmentation shear; a swing conveyor device; a pushing device; a rolling-type shearing machine; a chain-type conveyor track; a material guiding device; two shredding-type shearing machines; and a scrap collection device. The electromagnetic hoisting equipment is connected to the conveying platform, and is configured to hoist waste materials of steel rolling to the conveying platform; the conveying platform is connected to the clamping-and-feeding device, and is configured to convey the waste materials to the clamping-and-feeding device; the segmentation shear cooperates with the clamping-and-feeding device and is configured to segment the waste materials of steel rolling into steel plates; the pushing device is configured to push the steel plates to the rolling-type shearing machine.

Abstract: A magnesium alloy cast-rolling unit, including: a main body; a fluid supplier; an electric pushrod; a linkage mechanism; a horizontal platform; a screw; dovetail guide rails; and a bottom plate. The main body includes a base, a spring cylinder, a hydraulic adjustment cylinder, a connection portion, and a cast-rolling unit body. The connection portion includes an arc-shaped rail. The spring cylinder includes an actuation element. The actuation element includes a piston rod and a pressure strip. The piston rod includes an external thread at one end; and the pressure strip includes an internal thread corresponding to the external thread. The fluid supplier includes a head box, a corrugated pipe, a compression spring assembly including a gland cover, a connection pipe including a convex pipe joint and a concave pipe joint, a flat plate including a groove, a smelting furnace, and a horizontal operation platform.

Abstract: Hydraulic two-side rolling-cut shears, including: a front transport roller device, a rear transport roller device, a shear body, and a roller carrier. The front transport roller device includes a laser scriber, a magnetic alignment device, and a pinch roller device. The rear transport roller device includes a vertical guide roller. The laser scriber is disposed on the front end of the front transport roller device. The magnetic alignment device is disposed in the middle part of the front transport roller device. The pinch roller device is disposed on the rear end of the front transport roller device in front of the shear body. The roller carrier is disposed longitudinally in the middle of the shear body. The vertical guide roller is disposed on the rear transport roller device and behind the shear body.

Abstract: A magnesium alloy cast-rolling unit, including: a main body; a fluid supplier; an electric pushrod; a linkage mechanism; a horizontal platform; a screw; dovetail guide rails; and a bottom plate. The main body includes a base, a spring cylinder, a hydraulic adjustment cylinder, a connection portion, and a cast-rolling unit body. The connection portion includes an arc-shaped rail. The spring cylinder includes an actuation element. The actuation element includes a piston rod and a pressure strip. The piston rod includes an external thread at one end; and the pressure strip includes an internal thread corresponding to the external thread. The fluid supplier includes a head box, a corrugated pipe, a compression spring assembly including a gland cover, a connection pipe including a convex pipe joint and a concave pipe joint, a flat plate including a groove, a smelting furnace, and a horizontal operation platform.

Abstract: A method for preparing a metal composite plate by rolling includes the following steps: 1) rolling composite surfaces of a base plate and a cladding plate, respectively, to obtain the base plate corrugation and the cladding plate corrugation for mating with each other; 2) cleaning the composite surfaces of the base plate and the cladding plate to expose the metal matrixes of the base plate and the cladding plate; 3) laminating the base plate and the cladding plate sequentially so that the base plate corrugation on the base plate and cladding plate corrugation on the cladding plate mate with each other, compacting, and performing welding sealing treatment to the base plate and the cladding plate to obtain a composite plate slab; and 4) rolling the composite plate slab after inspection by using a compositing machine to a desirable thickness, to obtain a metal composite plate.

Abstract: A hydraulic rolling-cut shears, including: a horizontally disposed hydraulic cylinder; a shear mechanism including an upper tool post and a lower tool post; a linkage mechanism including a first upper connecting rod, a first lower connecting rod, a second upper connecting rod, a second lower connecting rod, and a synchronous connecting rod; and supports including a hydraulic cylinder support and a guiding rod support. The hydraulic cylinder is hinged to and disposed on the hydraulic cylinder support through a first pin. One end of the first upper connecting rod, one end of the first lower connecting rod, and one end of the synchronous connecting rod are hinged to one end of a piston rod of the hydraulic cylinder via a second pin. The first upper connecting rod, the synchronous connecting rod, and the first lower connecting rod are disposed at one side of the hydraulic cylinder support.