154results about How to "Reduce deformation rate" patented technology

The invention discloses a solid-state battery cell manufacturing method and device based on single-sided rubber frame forming, and relates to the technical field of solid-state battery manufacturing. The method comprises the following steps: manufacturing a rubber frame on one surface of a first pole piece positioned at a forming station; the second pole pieces and the first pole pieces with the rubber frames are sequentially and alternately conveyed to a lamination station, and the first pole pieces and the second pole pieces are sequentially and alternately laminated, so that the second pole pieces are embedded into the rubber frames of the first pole pieces; wherein the electrodes of the first pole piece and the second pole piece are opposite, and the thickness of the rubber frame is greater than or equal to that of the second pole piece. According to the invention, two times of rubber frame forming on one pole piece are not needed, so that the connectivity between the pole pieces is improved, and the conditions that the solid electrolyte layer and the pole pieces deviate relatively and the two adjacent pole pieces are short-circuited are avoided.

The invention discloses a method for realizing low-temperature diffusion bonding of zirconium and alloy thereof based on a constant-current electric field, and relates to the technical field of material bonding. The method aims at solving the problems that in current direct diffusion bonding of zirconium and zirconium alloy, the joint strength is low at the low bonding temperature, and base metal performance is reduced and post-welding deformation is large at the high bonding temperature. According to the method, hole closing and atomic diffusion at a diffusion connection interface are jointly promoted mainly through the electromigration effect under the action of the constant-current electric field, the vacancy concentration of zirconium and the alloy thereof improved by the constant-current electric field, and high-temperature plasticity, so that the high-strength zirconium and the alloy connector thereof are obtained at low temperature. The method for realizing low-temperature diffusion bonding of the zirconium and the zirconium alloy under the action of the constant-current electric field can be obtained.

The invention relates to butterfly plate processing, and discloses a heat treatment device and a heat treatment process for preventing deformation of a large butterfly plate, the heat treatment device comprises a bottom plate, the top of the bottom plate is fixedly connected with a stand column, the top of the stand column is provided with a rotating column, the top of the rotating column is fixedly connected with a top plate, and the top plate is provided with a hoisting mechanism. An electric push rod, an upper baffle and a lower baffle are arranged to drive a clamping block to move up and down, so that a connecting rope can be straightened conveniently, a butterfly plate is more stable during hoisting, the connecting rope can be clamped through an inserting groove, an L-shaped rod, a spring and a hemisphere, the hoisting stability of the butterfly plate is further improved, and the hoisting efficiency of the butterfly plate is improved. And shaking of the butterfly plate in the quenching process is reduced, so that the butterfly plate is quenched more uniformly, the probability of deformation of the butterfly plate in the quenching process is reduced, and the butterfly plate is quenched more stably.

The invention relates to the technical field of photovoltaic cleaning, in particular to a photovoltaic cleaning robot which comprises a vehicle body assembly which comprises a vehicle body part and a gravity center distribution part. The vehicle body part comprises a vehicle frame; the functional assembly comprises a supporting part, an adjusting part and an action part; the supporting part comprises side arms which are installed on the two sides of the head end of the frame and the two sides of the tail end of the frame respectively, and cleat supporting frames are arranged at the far ends of the side arms. The cleat supporting frames located on the two sides of the head end of the vehicle straightly extend in the front direction of the vehicle, and the cleat supporting frames are bent outwards by 90 degrees at the far ends of the cleat supporting frames. By changing the direction of the main shaft, the Mecanum wheels are located at the angle where the Mecanum wheels can work normally, so that the overall length of the robot is increased, the interval spanning capacity is naturally improved, the situation that manual back-and-forth carrying is needed can be avoided, time and labor are saved, and the Mecanum wheels are suitable for the large-range operation situation.

The invention relates to the field of high polymer materials and oil and gas exploitation, and discloses a curable resin composition and application thereof, a honeycomb-shaped resin product and a preparation method and application thereof. The curable resin composition comprises a component A and a component B, the component A and the component B independently exist; the component A comprises water-based thermosetting resin, solvent-based thermosetting resin, an emulsifier and water; the component B comprises a curing agent, and the curing agent is selected from modified nano silicon dioxide and / or bisphenol phenolic resin as shown in a formula I; # imgabs0 # A is a structural unit derived from an anhydride compound, and B is a structural unit derived from a polyamino compound; the bisphenol phenolic resin comprises a structural unit as shown in a formula II and a structural unit as shown in a formula III; based on the total weight of the bisphenol phenolic resin, the content of the structural unit shown in the formula II is 0-100 wt%, and the content of the structural unit shown in the formula III is 0-100 wt%.

The invention relates to the field of acrylic plate processing, in particular to acrylic plate production and processing equipment which comprises a mounting seat, and a heating mechanism and a bending mechanism are arranged on the mounting seat; the heating mechanism comprises a base and a heating bin; a first electric telescopic rod is arranged in the base, one end of the first electric telescopic rod is hinged to the heating bin, and one side of the heating bin is hinged to the base; the bending mechanism comprises a sliding table, a bending assembly and a cooling assembly. The sliding table is slidably connected to the top of the mounting base, one side of the sliding table is connected with a second driving rod, and the other end of the second driving rod is connected to the base; in the cooling process, the flatness of the corners is guaranteed through the positioning plate, the positioning plate is pushed by the air pressure push rod to position the corners of the acrylic plate, the deformation conditions such as upwarp of the corners can be effectively avoided in the cooling process, the product quality is improved, and the problems of defective products are reduced.

The invention provides a mechanism for preventing thermal treatment deformation of an engine exhaust nozzle, and relates to the technical field of mechanisms for preventing thermal treatment deformation of the engine exhaust nozzle, the mechanism comprises a base, the top of the base is rotatably connected with a disc, one side of the disc is provided with an adjusting and supporting device, and a rotating device is arranged between the base and the disc; the adjusting and supporting device comprises a double-shaft motor and a plurality of first supporting blocks, the adjusting and supporting device is arranged, and the inner walls of the bottoms of engine exhaust nozzles of different sizes can be supported and reinforced by adjusting the positions of the first supporting blocks according to actual use requirements; by arranging the rotating device, the rotating disc can drive the fixed bottom of the engine exhaust nozzle to rotate along with the rotating device in the heat treatment process, so that the outer surface of the engine exhaust nozzle is heated more uniformly, the probability of deformation is reduced, and the machining effect and quality are improved.

The invention discloses metal knitting needle quenching equipment and a quenching process, and relates to the field of quenching equipment, the metal knitting needle quenching equipment comprises a rack, the upper end part of the rack is provided with a heating box and a cooling box, the heating box is internally provided with a plurality of heating pieces, and the rack is provided with a conveyor belt for driving a knitting needle to sequentially pass through the heating box and the cooling box; the conveying belt drives the bearing boxes to move when working, a plurality of driving blocks are arranged at the upper ends of the bearing boxes, the upper ends of the driving blocks are rotationally connected with two coaxial disc blocks, the bearing boxes are provided with clamping pieces used for driving the two disc blocks to be close to or away from each other, and clamping plates are fixedly arranged on the outer circles of the disc blocks. The bearing box is provided with a rotating piece used for driving the disc block to rotate, the multiple heating pieces are located above the conveying belt and divided into two sets, all the heating pieces in the same set are located in the same straight line, and a heating channel is formed by a gap between the two sets of heating pieces. The device has the effects that the heating uniformity of the knitting needle during quenching is improved, and the quenching quality of the knitting needle is improved.

The utility model relates to the technical field of blind plate valves, and discloses a high-pressure-resistant blind plate valve which comprises a valve body, a valve plate is slidably connected into the valve body, two fixing grooves are formed in the outer surface of the valve plate, and a communicating ring is arranged in the fixing groove in the rearmost side. According to the high-pressure-resistant blind plate valve, the purpose of self-locking of the valve plate can be achieved through the arranged worm and worm wheel, the situation that the valve plate moves automatically is effectively avoided, through the arranged conical block, when the valve body enters the valve body, the valve body extrudes the conical block and the piston disc to enter the cavity of the closing disc, and when the conical block and the connecting pipe are concentric, the valve plate is closed. When the conical block can enter the interior of the connecting pipe and unstable pressure is generated in the pipeline, the damper and the spring are extruded through the arranged piston disc, the purposes of buffering and damping can be achieved, the overall anti-pressure capacity is effectively improved, and meanwhile in the moving process of the valve body, the purpose of guiding flow of circulating substances can be achieved through the arranged curved surface of the conical block.

The utility model discloses a fireproof air pipe with a stable structure, and relates to the technical field of fireproof air pipes. The fireproof air pipe with the stable structure comprises air pipe main bodies and further comprises an outer supporting plate, an inner supporting plate is installed at the top end of the interior of each air pipe main body, an upper mounting plate is arranged above the joint of the two air pipe main bodies, and a lower mounting plate is arranged below the joint of the two air pipe main bodies; two sets of first clamping pieces are symmetrically arranged between the two air pipe bodies, and a second clamping piece is arranged between the two first clamping pieces. The utility model is used for supporting the upper part of the air duct main body, enhancing the rigidity of the air duct main body, avoiding sinking of the upper part caused by long-time use or accumulation of sundries on the upper part of the air duct main body, reducing the probability of deformation, prolonging the service life of the air duct main body, quickly completing the butt-joint installation of two adjacent air duct main bodies, improving the connection effect, avoiding falling off, and improving the production efficiency. The operation is convenient.

The utility model discloses a clamp tool for turning a scroll plate of an electric compressor, which comprises a base plate and a support plate fixed above the base plate, the support plate comprises an inner support table and an outer ring which are arranged inside and outside, the outer ring is fixedly connected to the edge of the base plate, and the inner support table is used for being supported in the scroll plate. A connecting rod is fixedly connected between the inner supporting table and the outer ring, a main shaft pull rod is fixedly connected to the center of the base plate, clamping jaws are fixedly connected to the position, located between the outer ring and the inner supporting table, of the base plate, the clamping jaws are distributed on the base plate in an annular array mode, and the clamping jaws make contact with a vortex line of the vortex plate and are used for clamping the vortex plate. And the clamping jaws contract inwards to clamp the scroll plate. When the main shaft pull rod moves upwards, the base plate slightly deforms, the distance between the upper ends of the clamping jaws is increased, the scroll plate to be machined is arranged on the inner supporting table between the clamping jaws, the main shaft pull rod moves downwards, the base plate slightly deforms, the distance between the upper ends of the clamping jaws is decreased, and at the moment, the clamping jaws contract to clamp the scroll plate.

The utility model discloses a cable, which belongs to the field of cables and comprises a core wire, a middle coating layer, a first shielding layer, a second shielding layer and a ground wire, the middle coating layer is coated outside the core wire, the first shielding layer is coated outside the middle coating layer, the second shielding layer is coated outside the first shielding layer, and the ground wire is positioned between the middle coating layer and the first shielding layer. According to the cable provided by the utility model, through the combined action of multiple layers of structures, the middle coating layer, the first shielding layer and the second shielding layer can be dispersed to each layer when bearing external bending stress, so that the stress concentration of the core wire is reduced, the probability of deformation of the core wire due to repeated bending is reduced, the characteristic impedance stability is maintained, the signal transmission is ensured, and the data transmission abnormity is reduced.

The invention relates to the technical field of laser cutting machines, and provides a laser cutting machine for JP cabinet production, which comprises a mounting plate frame, a traction component, a polishing component and a pressing and separating mechanism, the mounting plate frame is fixedly connected to the end part of a lathe bed, and the pressing and separating mechanism is fixedly connected to the mounting plate frame; the pressing and separating mechanism is used for disconnecting a part adhered to a plate from the plate through pressing and comprises a cushion wheel and a pressing wheel, a plurality of protrusions are arranged on the pressing wheel, the plate slides between the pressing wheel and the cushion wheel, the cushion wheel and the pressing wheel are each sleeved with a protective sleeve made of a flexible material, and the protective sleeves are connected with the pressing wheel. And a scraper mechanism is arranged between the pressing and separating mechanism and the traction component and used for separating parts which are pressed and broken by the pressing and separating mechanism on the plate, and the technical problems that in the prior art, after laser cutting is conducted on the JP cabinet thin plate, cuttings adhere to base metal, residues need to be removed through manual knocking, the labor cost is high, and the machining efficiency is low are solved.

The invention relates to an artificial woven ligament, and relates to the technical field of artificial woven ligaments, the artificial woven ligament comprises a plurality of woven bodies which are different in diameter and are of cylindrical structures, and the plurality of woven bodies are mutually sleeved and are mutually connected through fixing parts to form the ligament. According to the application, the plurality of weaving bodies with different diameters are manufactured in advance, then the plurality of weaving bodies with different diameters are mutually sleeved together according to the required ligament diameter, and the plurality of weaving bodies are fixedly connected to form the ligament through the fixing piece, so that the ligament does not need to be rolled on site, can meet the requirements of different diameters, does not need to be cut, and is convenient to use. Therefore, a doctor can concentrate more energy to perform an operation, the implantation effect is improved, and the quality and efficiency of the operation are improved.

Provided are a heat-sealable laminated film which has a high adhesion force at a laminated interface and has a good bonded state when being heat-sealed, and a roll obtained by rolling the heat-sealable laminated film. A heat-sealable laminated film includes a layer B, a layer C, a layer A, a layer C, and a layer B in this order. At least the layer C, the layer A, and the layer C are laminated by co-extrusion. The layer A contains 100 to 70% by mass of a polymer A1 containing 90 mol% or more and 100 mol% or less of a constitutional unit derived from 4-methyl-1-pentene with respect to all constitutional units. The layer B contains 100 to 70% by mass of a heat-sealable polyolefin B1. The layer C contains 50% by mass or more of a copolymer C1 containing 60 mol% or more and 99 mol% or less of a constitutional unit derived from 4-methyl-1-pentene and 1 mol% or more and 40 mol% or less of a constitutional unit derived from an α-olefin having 2 or more and 20 or less carbon atoms other than 4-methyl-1-pentene.

The utility model discloses a scooter forehead which comprises a forehead body, a pressing block and a screw, the forehead body is provided with a first groove, a positioning protrusion and a plurality of first screw holes, the pressing block is provided with a second groove, a positioning groove and a plurality of second screw holes, and the pressing block can be connected with the forehead body. The first grooves and the second grooves can be spliced into a transverse hole, meanwhile, the first screw holes and the second screw holes are opposite in a one-to-one mode, the first screw holes and the second screw holes which are opposite are connected through screws, and the positioning protrusions can be embedded in the positioning grooves. According to the utility model, the forehead main body and the pressing block are separately arranged, so that the scooter handle cross beam can be disassembled and assembled without penetrating through the forehead, the pre-installation of other parts on the scooter handle cross beam can be facilitated, the disassembly of the scooter handle cross beam can be facilitated, and the transportation of the forehead is also facilitated; and the probability of deformation during transportation is effectively reduced.

The utility model discloses a food grade liquid cold storage tank, which relates to the technical field of food storage and specifically comprises a support and a Miller plate evaporator, a cold storage tank body is arranged at the top of the support, and a breather valve, a stirring structure, an inlet hole and a liquid inlet are arranged at the top of an inner cavity of the cold storage tank body. The inner cavity of the refrigeration tank body is provided with a pressurized automatic rotary cleaning CIP spray head, the stirring structure comprises a stirring rod movably connected with the top of the inner cavity of the refrigeration tank body, the top end of the stirring rod is provided with a stirring blade I, and the bottom end of the stirring rod is provided with a stirring blade II. According to the food-grade liquid refrigeration tank, manufacturing of the Miller plate evaporator and connection of the refrigeration plate and the liquid layer are achieved through the laser welding technology, the deformation probability of the inner wall of the refrigeration tank body is reduced, the smoothness and the use strength of the interior of the refrigeration tank body are guaranteed, and when the refrigeration tank is used, the refrigeration plate directly makes contact with liquid in the tank, so that the refrigeration effect is improved. The heat exchange efficiency is optimized, and the using effect is improved.

The invention discloses an anti-sliding key structure which comprises a plurality of miniature steel pipe grouting piles and pressure grouting piles, each miniature steel pipe grouting pile comprises a first cement column, two miniature steel pipes welded side by side are arranged in each first cement column, and the bottoms of the miniature steel pipes are flush with the bottom of each first cement column. The invention further discloses an implementation method of the anti-sliding key structure. The implementation method comprises the following steps that a steel pipe pile hole and a pressure grouting hole are drilled in the rear edge position of a landslide; pouring cement paste into the steel pipe pile hole and the pressure grouting hole; two micro steel pipes welded side by side are pressed into the first cement column to the bottom end of the first cement column, and a micro steel pipe grouting pile is formed; and after the cement paste is solidified, an anti-sliding key structure is formed. The invention further discloses a landslide treatment method, 20-40 sets of anti-sliding key structures are implemented on the rear edge of the landslide, the distance between every two adjacent sets of anti-sliding key structures ranges from 4 m to 6 m, and the anti-sliding key structure sets are arranged in a V shape on the plane. The anti-sliding key structure can increase the depth of a sliding surface and reduce the sliding force and the deformation rate of a landslide.

The invention provides a pole piece of a lithium ion battery and a preparation method of the pole piece, the pole piece of the lithium ion battery comprises a current collector and an active material coated on the current collector, and by arranging the active material and an adhesive, the active material can be conveniently and rapidly fixed when being extruded and arranged on the current collector along an angle; the assembly state of the active material on the current collector is stabilized, the active material is placed in the slit die cavity to be extruded, the active material moves and deforms towards the single side direction, so that the structure becomes long and narrow, and the end part of the long and narrow active material is connected with the current collector to be rolled, so that the tortuosity of the lithium ion battery pole piece is reduced, and the service life of the lithium ion battery pole piece is prolonged. And the migration rate of lithium ions in the pole piece and the embedding rate of the lithium ions in the active material are accelerated, meanwhile, the problem that the pole piece is expanded and increased due to lithium ion embedding in the thickness direction of the pole piece is solved, and the probability of deformation of the lithium ion battery is reduced.

The utility model discloses a double-shaft adhesive tape rewinding machine which comprises a machine frame, openings are formed in the two sides of the back face of the machine frame, an unwinding shaft is arranged in the two openings jointly, a tensioning roller is arranged at the top of the machine frame, sliding ways are formed in the middles of the two side walls of the machine frame, winding shafts are arranged on the inner sides of the sliding ways, and the winding shafts are arranged on the inner sides of the sliding ways. And a baffle is arranged at the bottom of the inner side of the sliding way, a pneumatic clamping roller is arranged below the winding shaft, second air cylinders are installed in the middles of the inner walls of the two sides of the rack, two first air cylinders are installed at the bottom of the front face of the rack, and a semicircular cylinder is jointly arranged at the top ends of the two first air cylinders. By arranging a series of structures, a cut adhesive tape roll containing backing paper can be wound on the winding shaft again, the winding efficiency of the winding machine can be improved, the external force borne by the rewinding adhesive tape roll during discharging is reduced, and the probability that the adhesive tape roll deforms during discharging is reduced.

The invention discloses a metal knitting needle quenching device and a quenching process, and relates to the field of quenching equipment, which includes a frame, a heating box and a cooling box are arranged at the upper end of the frame, a plurality of heating elements are arranged in the heating box, a conveyor belt for driving the knitting needles to pass through the heating box and the cooling box in sequence is arranged along the frame; and also includes: a plurality of carrying boxes, the conveyor belt drives the carrying box to move when working, a plurality of driving blocks are arranged at the upper end of the carrying box, two coaxial disc blocks are rotatably connected to the upper end of the driving block, the carrying box is provided with a clamping member for driving the two disc blocks to approach or move away, a clamping plate is fixed on the outer circle of the disc block, the carrying box is provided with a rotating member for driving the disc block to rotate, and the plurality of said heating elements are all located above the conveyor belt and divided into two groups, all the heating elements in the same group are in the same straight line, and the gap between the two groups of heating elements constitutes a heating channel. The application has the effect of improving the uniformity of heating of the knitting needles during quenching and improving the quenching quality of the knitting needles.

The utility model discloses a steering engine heat shield structure which comprises a main body, first connecting belts are installed on the two sides of one end of the main body, hook-and-loop fastener thorn faces are installed at one ends of the first connecting belts, second connecting belts are installed on the two sides of the other end of the main body, hook-and-loop fastener loop faces are installed at one ends of the second connecting belts, and hook-and-loop fastener loop faces are installed at the other ends of the second connecting belts. And a reinforcing structure is arranged in the side wall of the main body. Through the arrangement of the first connecting belt, the main body can be wound on the steering machine through the mutual matching of the first connecting belt and the second connecting belt, and through the mutual matching of the hook-and-loop fastener thorn surface and the hook-and-loop fastener loop surface, the first connecting belt and the second connecting belt can be connected in a bonding manner, so that the main body can be fixedly mounted on the steering machine.

The novel special-shaped product positioning tool comprises a bottom plate and two sets of clamping assemblies, each clamping assembly comprises a limiting block, the limiting blocks are installed on the surface of the bottom plate, the lower end of a screw rod is fixedly arranged in the middle of the limiting blocks in a penetrating mode, the screw rod is connected with a fine adjustment nut in a screwed mode, the upper end of the screw rod is arranged in the middle of an adjusting block in a penetrating mode, and the lower end of the screw rod is connected with a fine adjustment nut in a screwed mode. The top of the fine adjustment nut abuts against the bottom of the adjusting block, sliding grooves are formed in the two ends of the adjusting block, the two ends of the limiting block are sleeved with the adjusting block, the profiling block is arranged below one end of the special-shaped product, and the profiling pressing plate is arranged above the special-shaped product and tightly presses one end of the special-shaped product on the profiling block. According to the utility model, the elliptical part can be quickly mounted, the clamping and positioning are accurate, and the part clamping time is shortened. By rotating the fine adjustment nut, the heights of the two sides of the part can be finely adjusted up and down, the part can be aligned through one-time clamping, the part clamping frequency is reduced, and the product deformation probability is effectively reduced.

The present invention provides a support device and method for controlling the deformation rate of small-diameter flexible pipe installation, comprising: an upper support plate, a lower support plate, and a vertical support rod connected between the upper support plate and the lower support plate, characterized in that the vertical support rod is respectively connected to the upper support plate and the lower support plate through a socket sleeve, and the vertical support rod rotates around the upper support plate and the lower support plate respectively through the socket sleeve. The beneficial effect of the present invention is to control the deformation of the small-diameter flexible pipe caused by its own insufficient anti-deformation ability during the trench backfilling process, reduce the pipe deformation rate, reduce rework, and can play a good control on the pipe leakage caused during the construction of the drainage pipe, and the device is simple to operate and has low manufacturing cost, easy to assemble and disassemble, and convenient to maintain.

The present application relates to the technical field of concrete vibrating equipment, and discloses a fiber concrete vibrator for residential garage construction, including a flat plate, a connecting frame is provided on the flat plate, the flat plate is connected to a motor through a buffer platform, the motor is connected to the vibrator through a second transmission unit, the second transmission unit is configured to isolate vibration, and the motor is connected to a mobile frame through a first transmission unit. In the fiber concrete vibrator for residential garage construction, the motor and the second transmission unit drive the vibrator to make the vibrator vibrate, and the motor is arranged on the buffer platform, the motor and the vibrator generate heat respectively, and do not overlap each other, and the motor is in an environment with relatively small vibration when running, which increases the service life, and secondly, a scraper is provided in front of the flat plate, and the scraper reciprocates to flatten the concrete in front, so that the bottom of the connection between the flat plate and the vibrator will not be suspended, which not only ensures the vibration effect, but also reduces the probability of deformation of the flat plate.

The utility model belongs to the technical field of electric furnace production equipment, and mainly relates to a bottom ring for calcium carbide production, which is formed by splicing four arc-shaped plates end to end in the circumferential direction, a cooling channel is arranged in each arc-shaped plate, and a plurality of turbulent flow blocks are arranged in the cooling channels. The turbulent flow blocks are arranged in the cooling channel so as to reduce the flow area of the cooling channel, according to the Bernoulli's law, when a cooling medium flows to the position where the turbulent flow blocks are arranged, the flow speed of the cooling medium can be increased, more cooling medium can flow through the cooling channel in unit time, and the cooling efficiency is improved. The cooling medium can take away more heat in unit time, so that the temperature of the bottom ring is reduced, and the service life of the bottom ring is prolonged.

The packaging box comprises a plurality of side plates and a plurality of bottom plates, the bottom plates are arranged on the side plates, the side plates are enclosed together to form side walls of a box body, the bottom plates are matched together to form the bottom of the box body, the side walls are perpendicular to the bottom, cover plates are arranged on the side plates, and the bottom plates are arranged on the cover plates. The lifting device further comprises a first hook plate, a second hook plate, a first attaching plate and a second attaching plate, the first hook plate and the second hook plate are arranged on the different bottom plates respectively and located in the side wall, a first lifting handle plate is arranged on the first hook plate, a second lifting handle plate is arranged on the second hook plate, and the first attaching plate and the second attaching plate are arranged on the side wall. The first lifting handle plate and the second lifting handle plate are both located outside the side wall, and the cover plate, the first lifting handle plate and the second lifting handle plate are clamped together. The packaging box has the following beneficial effects that the probability that the cover plate deforms in the hand lifting process is reduced, and the probability that the cover plate is separated from the first lifting handle plate and the second lifting handle plate is also reduced.

The utility model provides a PVC pipe tractor which comprises a support, a shell arranged above the support and a traction assembly installed on the shell, the shell is of a cylindrical structure with the two ends open, and the traction assembly comprises an installation frame, a plurality of traction idler wheels arranged in the installation frame and a driving motor arranged on the installation frame. The installation frame is of an annular frame structure and is arranged on the inner edge of the shell, all the traction rollers are connected end to end in a chain mode and are sequentially and mutually in driving connection to form a whole, and the traction roller located at the head end is in driving connection with a motor. According to the utility model, the plurality of traction rollers are arranged to be of an annular structure, so that the pressure intensity of a single contact point is reduced by uniformly distributing the pressure, and the probability of deformation of the PVC pipe caused by the pressure on the PVC pipe is reduced; besides, the more the traction rollers are, the smaller the area where the PVC pipe deforms under pressure is, the deformation of the PVC pipe is not obvious, and the influence on the quality of the PVC pipe is smaller.

The utility model provides a kind of flat tube automatic sliding device and radiator assembly machine, the flat tube automatic sliding device includes device support;Heat pipe conveying mechanism, for conveying heat pipe;Guiding connecting seat, fixed on the device support, and with heat pipe conveying mechanism butt joint to form first guide channel, the first guide channel end is equipped with channel outlet;Flat tube trend adjusting mechanism, including stop block, the third cylinder of driving the stop block and connecting seat, the connecting seat forms vertical third guide channel and with the channel outlet butt joint;Lifting support device, including lifting module, second cylinder and second support frame.The utility model realizes the flexible steering of heat pipe by arc first guide channel arc setting, eliminates hard collision;Lifting support device before heat pipe enters vertical channel, initiative extension second support frame whole process support bottom, reduce deformation rate;By automatic shunt surplus material, it is convenient to take out redundant pipe body.

The invention provides a nickel-based superalloy low-welding-specification high-strength diffusion welding method, and belongs to the technical field of superalloy welding. According to the method, the high-purity nickel foil is introduced between the two nickel-based high-temperature alloy to-be-welded parts to serve as the middle layer material, the middle layer material has good plastic deformation performance, the surface contact condition between the to-be-welded materials can be improved, the eutectic reaction of base metal and middle layer elements is used for promoting breaking of an oxidation film on the surface of the base metal, and the welding quality is improved. The generation of intermetallic compounds is inhibited, so that a diffusion welding joint with good performance can be obtained; by controlling the thickness of the middle layer material, the structure defects in a welding joint can be effectively reduced, the room-temperature tensile property and the high-temperature tensile property of the welding joint are improved, meanwhile, the temperature needed in the diffusion welding process can be reduced, deformation generated in the welding process is further reduced, and the welding manufacturing precision is improved.