587results about How to "Heavy load" patented technology

The invention relates to an anti-static PP composite material and a preparation method thereof, and belongs to the technical field of high polymer materials. The antistatic PP composite material is prepared from the following components in parts by weight: 60 to 80 parts of PP resin, 10 to 20 parts of glass fiber, 0.1 to 0.5 part of a lubricant, 0.3 to 2 parts of a modified antistatic agent, 0.5 to 1.5 parts of a modified flame retardant and 0.2 to 0.8 part of an antioxidant, in the modified antistatic agent, an alkanolamide bond intermediate forms a conductive film, so that the resistivity is reduced, static dissipation is promoted, the material is endowed with lubricity, and the generation of static electricity is reduced; in addition, maleic anhydride forms a conductive layer and cooperates with quaternary ammonium salt to enhance hydrophilicity and accelerate charge transfer; a piperazine pyrophosphate derivative in the modified flame retardant and a phosphorus-nitrogen flame retardant cooperate to construct an expanded carbon layer to isolate a fire source and oxygen, so that the service life is prolonged; the anti-static PP composite material prepared by the invention not only has a good anti-static effect, but also has excellent flame-retardant and tensile properties.

The invention relates to the technical field of fibers, and discloses an ultrahigh-moisture-absorption anti-static polyester fiber and a preparation method thereof. The preparation method comprises the following steps: carrying out nucleophilic substitution reaction on 1, 2-benzisothiazolin-3-one and methacryloyl chloride to obtain modified benzisothiazolinone; the preparation method comprises the following steps: carrying out nucleophilic substitution reaction on phosphonitrilic chloride trimer and allylamine, and then carrying out nucleophilic substitution reaction on the phosphonitrilic chloride trimer and melamine again to obtain modified cyclophosphazene; the preparation method comprises the following steps: mixing gamma-methacryloxypropyltrimethoxysilane with aluminum zinc oxide for reaction, and mixing the obtained modified aluminum zinc oxide with modified benzisothiazolinone and modified cyclophosphazene for copolymerization in the presence of an initiator to obtain a flame-retardant antibacterial additive; mixing the flame-retardant antibacterial additive, calcium carbonate and polyethylene glycol terephthalate, performing melt spinning, and performing acid treatment to obtain modified polyester fibers; dipping the modified polyester fiber in a finishing liquid containing modified chitosan to obtain the ultrahigh-moisture-absorption anti-static polyester fiber.

The invention provides a conveying platform for internal parts of a compact fusion reactor and a using method of the conveying platform, and belongs to the field of transportation of the internal parts of the fusion reactor. Vacuum outdoor transportation parts of the conveying platform comprise a supporting steel frame assembly, a transportation track assembly, a transportation trolley assembly and a mobile crane assembly, and the supporting steel frame assembly comprises a cage-shaped steel frame; one section of the transportation track assembly is straightly installed in the building channel, the other sections of the transportation track assembly are straightly located in the cage-shaped steel frame and extend to a window in the vacuum chamber, and the movable crane assembly and the transportation trolley are sequentially located on the transportation track assembly. The cable-stayed hanger rail component comprises cable-stayed rods, a bearing steel beam and an annular hanger rail, the cable-stayed rods are installed at the upper end of the regular polygon-shaped frame in an annular array mode, one end of each cable-stayed rod is connected with the upper window collar of the vacuum chamber, and the other end of each cable-stayed rod is connected with the bearing steel beam of the frame. According to the invention, after internal parts on the equatorial plane of the vacuum chamber are quickly conveyed, the internal parts can be conveyed through simple adjustment.

The invention discloses a pure smelting method for nickel-based superalloy, which relates to the technical field of metal smelting and comprises the following steps: (1) screening high-purity raw materials; (2) selecting a vacuum induction melting furnace and carrying out vacuumizing treatment; (3) sequentially adding the pretreated raw materials into a vacuum induction melting furnace, and heating and melting the raw materials; (4) carrying out electromagnetic stirring; (5) preparing special electroslag, and drying and crushing the electroslag; and (6) casting the alloy liquid subjected to vacuum melting into a consumable electrode, inserting the consumable electrode into the slag of the electroslag remelting furnace, and electrifying. According to the design scheme, impurities in the nickel-based superalloy are effectively removed, the purity and uniformity of the alloy are improved, the mechanical property and thermal stability of the alloy are improved, the service life is prolonged, and a better purification effect is achieved.

The invention relates to a wide-view C-shaped arm X-ray machine and an imaging method thereof.The wide-view C-shaped arm X-ray machine comprises a main machine, a C-shaped arm, an X-ray source, a flat panel detector, a first telescopic mechanism, a first translation mechanism and a first swing mechanism, the first telescopic mechanism is arranged at one end of the C-shaped arm and used for driving the first translation mechanism and the flat panel detector to stretch out and draw back, and the first swing mechanism is arranged at the other end of the C-shaped arm and used for driving the X-ray source to swing. The first translation mechanism is arranged on the first telescopic mechanism and used for driving the flat panel detector to translate, and the first swinging mechanism is arranged at the other end of the C-shaped arm and used for driving the X-ray source to swing so as to follow the position of the flat panel detector, so that X-rays emitted by the X-ray source can fall on the flat panel detector. The flat panel detector can move to different imaging positions to obtain images at different positions, and the images are synthesized into a larger image, so that the area of an imaging region is greatly increased, the observation view of a doctor is expanded, and the efficiency and safety of an operation are improved.

A pushing chain for a villa elevator relates to the technical field of pushing chains and comprises a pushing chain body, the pushing chain body comprises a first chain plate and a second chain plate, limiting grooves are formed in the upper portions of the front ends of the first chain plate and the second chain plate, limiting blocks are arranged on the upper portions of the rear ends of the first chain plate and the second chain plate, and the limiting grooves are used in cooperation with the limiting blocks. First protrusions extending forwards are arranged at the bottoms of the front ends of the first chain plate and the second chain plate, first connecting holes are formed in the first protrusions, second protrusions are arranged at the rear ends, where the inner sides of the lower portions of the limiting blocks are located, of the first chain plate or the second chain plate, and second connecting holes are formed in the second protrusions. The second protrusions are bent and translated towards the outer side relative to the first chain plates or the second chain plates, the translating distance is the same as the thickness of the first protrusions, and the second protrusions of the first chain plates and the second chain plates are opposite in direction relative to the first protrusions. The device is used for being installed on the side face of the villa elevator car and has the advantages of being simple in structure, small in occupied space, high in speed, large in load, low in maintenance cost, safe and reliable.

The invention relates to a construction method of an anti-typhoon sea wave sea-crossing steel trestle and platform adjacent to a residential building. The construction method comprises the steps that firstly, deep fusion application of BIM and VR is conducted; step 2, surveying and setting out; step 3, embedding steel bars and pouring strip-shaped concrete; fourthly, the steel pipe piles are transported and lengthened; fifthly, steel pipe piles are driven; sixthly, parallel connection and diagonal bridging construction is conducted; seventhly, bearing beams are installed; eighthly, longitudinal beams are installed; ninthly, the distribution beams are installed; tenthly, bridge deck slabs and guardrails are installed; and 11, an intelligent monitoring and early warning system.

The invention discloses an edible mushroom cultivation device, and relates to the technical field of agricultural planting, the edible mushroom cultivation device comprises two bases and a greenhouse frame, the greenhouse frame is fixedly connected to the upper surfaces of the two bases, a moving assembly is arranged on the bases, and the moving assembly comprises rails fixedly connected to the upper surfaces of the two bases; and four symmetrical moving plates are slidably connected to the two sides of the rail, four moving wheels are rotatably connected to the inner side of each moving plate, a moving block is fixedly connected between every two opposite moving plates through bolts, and a framework is fixedly connected to the tops of the moving blocks. Edible mushrooms are irrigated by moving and spraying on the framework, the situation that the load of a greenhouse frame is increased due to the fact that a spraying device needs to be arranged on the greenhouse frame in the prior art can be avoided, then the greenhouse frame is prevented from collapsing due to too large pressure, and the spraying device can be conveniently moved to the position where maintenance is convenient through the independent framework; and the maintenance difficulty and time cost are reduced.

The invention belongs to the technical field of underground coal mine pipeline installation, and particularly relates to a large-pipe-diameter-range pipeline installation mechanical clamping jaw suitable for an underground coal mine roadway, which comprises a fixed installation part, a fixed jaw, a movable jaw, a fixed hydraulic cylinder and a movable hydraulic cylinder. Pipelines with different diameters in a large pipe diameter change range can be grabbed; six groups of rubber rollers are mounted on the fixed jaw and the movable jaw, and at least one group of driving rubber rollers capable of actively rotating can extrude the pipeline and drive the pipeline to roll in the clamping jaw through extrusion contact of the rubber rollers and the pipeline, so that the relative position of a pipeline mounting flange bolt hole is adjusted, and smooth butt joint and bolt insertion are facilitated. The device has the characteristics of small structural space, wide pipe diameter range and convenience in operation.

The utility model provides a wind power deflection bearing sealing structure which comprises a first bearing ring, a second bearing ring and a sealing structure, and the sealing structure is arranged between the first bearing ring and the second bearing ring. The sealing structure is a double sealing ring consisting of an inner sealing ring and an outer sealing ring; the inner sealing ring is of a double-lip type sealing structure. The outer sealing ring can prevent the inner sealing ring from being directly exposed in the environment, invasion of soil, dust and sand is avoided, the aging progress of the sealing ring is slowed down, and the service life of the sealing ring is prolonged; the outer seal can improve the sealing performance of the bearing, guarantee the stock of lubricating grease in the bearing, improve the operation stability of the bearing and reduce the maintenance cost.

The utility model discloses a self-cleaning scraper for a side type scraper reclaimer, which comprises a case used for reclaiming materials from the side type scraper reclaimer. The cleaning device is used for self-cleaning the scraper; the buffer device is used for buffering the scraping plate; the inner surface of the rotating disc is fixedly connected with a rotating shaft, and the outer surface of the rotating disc is fixedly connected with a matching rod. The device is provided with a cleaning device, a guide rail drives a tooth block to slide, the tooth block drives a sliding rod to slide, the sliding rod drives a collision plate on a connecting block to slide, the collision plate collides with a material taking plate, the material taking plate vibrates, materials attached to the material taking plate fall off, the sliding rod drives an L-shaped plate to slide, and the L-shaped plate drives a brush to clean the inner wall of the material taking plate. Under the condition that extra power driving is not needed, the scraping plate can clean accumulated materials by itself, the situation that the load of the scraping plate is too large is avoided, and the self-cleaning purpose is achieved.

The embodiment of the invention provides a wind generating set rack design method and system, and belongs to the technical field of wind power. The method comprises the following steps: S10) carrying out topological optimization on a topological region of a rack model, and checking the rack model after topological optimization; s20) identifying and constructing a transfer matrix of stress and load of each key part; s30) executing a genetic algorithm based on a load updating result and the transfer matrix to obtain optimized geometric parameters of each key part; s40) on the basis of the optimized set parameters of each key part, updating a topological region optimization result of the rack, and checking the rack model after updating topological optimization; and (S50) repeating the step (S20) to the step (S40) until the geometric parameters, meeting the design requirements, of all the key parts are obtained, and outputting a corresponding rack design plane.According to the scheme, the lightweight design effect of the rack is improved, and the safety and economical efficiency of the rack are guaranteed.

The invention discloses a novel Internet of Vehicles congestion simulation method oriented to a 5G V2X Uu interface, a semi-physical simulation test platform oriented to the 5G V2X Uu interface is included, the test platform architecture comprises a traffic simulator, data packet software, a receiving end OBU, a sending end OBU and a 5G comprehensive tester, and the problem that the semi-physical simulation is limited by the number of terminals and is difficult to simulate a congestion scene is solved. By limiting available resources of the network, the requirement of semi-physical simulation on the number of terminals is reduced, and meanwhile, the increase of the number of vehicles in the network is simulated by increasing the network traffic load. The adjustment of the traffic load is realized by setting a data packet sending period and the size of a data packet. And selecting a required channel model to calculate fading according to a traffic simulation scene and vehicle time-position information, and then adding the fading into a corresponding data packet. And for a V2N2V link, respectively adding uplink fading and downlink fading for a data packet according to different environments and positions of receiving and transmitting end vehicles.

The invention relates to a heat pump system and a control method thereof, the heat pump system is provided with a liquid spraying enthalpy increasing branch, a refrigerant in a refrigerant circulation loop can be shunted between a first throttling element and a main path of an economizer, and the refrigerant flows into an air supplementing opening of a compressor through an auxiliary path of the economizer for air supplementing and enthalpy increasing. An air supply throttling element is arranged on the liquid spraying enthalpy increasing branch, and the controller obtains the exhaust superheat degree according to the exhaust temperature and the exhaust pressure, determines the optional adjusting mode of the opening degree of the air supply throttling element according to the exhaust superheat degree and obtains the superheat degree of the economizer according to the side road inlet temperature and the side road outlet temperature. According to the method, the target adjusting mode is determined from the selectable adjusting modes based on the superheat degree of the economizer, the opening degree of the air supply throttling element is controlled through the target adjusting mode, and the reliability of the compressor can be guaranteed while the exhaust temperature is reduced and the refrigerating and heating capacity is improved. And the heat exchange capacity of the economizer can be fully utilized, the refrigerant can be ensured to obtain sufficient supercooling degree, and the heat absorption capacity of the evaporator is improved.

The utility model discloses a double-turntable crane which comprises a chassis, a slewing bearing is mounted on the chassis, a turntable connecting piece is mounted on the slewing bearing, two turntables are symmetrically arranged on the turntable connecting piece by taking a slewing axis of the slewing bearing as a symmetry axis, and a hoisting mechanism is mounted on each turntable; the rotary table connecting piece comprises a connecting part located in the middle and installed on the slewing bearing, and two installation parts located on the two sides of the connecting part and used for installing a rotary table. The lower surfaces of the two mounting parts are curved surfaces, and the two curved surfaces are sunken towards the upper part of the connecting part; the hoisting mechanism comprises a mast hinged to the rotary table, a counterweight assembly installed on the mast and provided with a counterweight piece, a lifting assembly installed on the rotary table and used for pulling the counterweight piece to move up and down, and a hoisting assembly installed on the rotary table and used for hoisting heavy objects. By arranging the two rotary tables and the two hoisting mechanisms, when a large-load heavy object is hoisted, the two hoisting mechanisms can work synchronously, and the heavy object is hoisted together.

The invention discloses a flight performance improvement method based on aero-engine emergency control, and the method comprises the steps: calculating a flight envelope of an aircraft in an original limit state according to the parameters of the aircraft; according to the flight envelope in the original limit state, an engine thrust increasing controller is designed to carry out emergency control on the engine, and the flight performance is improved; and calculating the flight envelope of the aircraft after the flight performance is improved, comparing the flight envelope with the flight envelope in the original limit state, and carrying out quantitative evaluation on the flight performance improvement. By adjusting the control strategy of the aero-engine, higher engine thrust can be obtained by sacrificing part of the service life of the engine in emergency. The flight performance of the aircraft under the emergency condition can be effectively improved, the coping capacity and safety of the aircraft under the emergency condition can be improved, the application range of the aircraft in the complex environment is expanded, and greater safety guarantee is provided for pilots and passengers.

The invention provides a chuck for a laser cutting production line. The chuck comprises a rack, a rear cover, a front cover, two up-down clamping jaws, two left-right clamping jaws, a power source for providing power for movement of the clamping jaws, a synchronous driving mechanism arranged on the front cover and used for driving the clamping jaws to synchronously move under the action of the power source, and a rotary driving mechanism used for driving the whole chuck to rotate. The synchronous driving mechanism comprises a power input shaft in transmission connection with the power output end of the power source, a power transmission main gear rotationally arranged on the power input shaft, a first gear ring and a second gear ring, wherein the first gear ring and the second gear ring are rotationally arranged on the inner side and the outer side of the first gear ring respectively and meshed with the power transmission main gear. The two first transmission gears are meshed with the first gear ring, the two second transmission gears are meshed with the second gear ring, and the four transmission assemblies are used for achieving transmission connection between the two first transmission gears and the two second transmission gears and the two clamping jaws in the vertical direction and the left-right direction correspondingly. Compared with an existing similar chuck, the clamping speed is higher, the efficiency is higher, the thrust is larger, and the cost performance is high.

The utility model discloses a handheld laser welding gun auxiliary welding jig which comprises a connecting frame, a first positioning attaching block, a second positioning attaching block and a welding gun head clamping block, the first positioning attaching block and the second positioning attaching block are both hinged to the connecting frame, and a welding gun head is movably connected between the welding gun head clamping block and the connecting frame. And the welding gun head clamping block is movably connected with the connecting frame through a limiting shaft. The first positioning attaching block and the second positioning attaching block are arranged to be the right-angle sides, that is, a welding piece can be placed between the areas of the first positioning attaching block and the second positioning attaching block, then the welding gun head is aligned with a welding seam of the welding piece for welding, and then stable and high-quality welding operation of the welding seam can be achieved by moving the welding gun head along the plane of the welding piece. The problem that the laser armored cable brings a large load to the hand of a user during welding is effectively solved. The welding effect of equipment is effectively guaranteed, and the welding track is correct and continuous.

The utility model relates to the technical field of agricultural landscaping. A water system abrupt slope landscape gabion revetment comprises a plurality of gabion sets, and the gabion sets are laid on a river levee in a stepped mode. Each gabion group comprises a first gabion net cage and a second gabion net cage; the section of the first gabion net cage and the section of the second gabion net cage are rectangular, and the second gabion net cage is arranged in the first gabion net cage in a concentric-square-shaped mode. The interior of the second gabion net cage is a planting groove space; a slope type third gabion net cage is arranged on the inner side, opposite to the river bank, of the first gabion net cage at the lowermost end of the gabion set; each of the first gabion net cage, the second gabion net cage and the third gabion net cage comprises a net cage main body enclosed by a plurality of steel bars and steel wire meshes arranged among the steel bars, and the first gabion net cage and the third gabion net cage are filled with protective stones. The water system abrupt slope landscape gabion revetment is reasonable in structure, stable in revetment structure and high in adaptability to a water bank abrupt slope.

A wireless induction power supply air circulation fan comprises a fan assembly and a seat body, the seat body comprises a fixed seat and a rotating seat rotationally connected to the fixed seat, and the fan assembly is assembled on the rotating seat; the driving device is used for driving the rotating seat to rotate along the end surface of the fixed seat; the power supply device is used for being electrically connected with the fan assembly and providing a starting power supply for the fan assembly, and the power supply device comprises an electromagnetic emission assembly used for generating a magnetic field; and the electromagnetic receiving assembly and the electromagnetic transmitting assembly are correspondingly arranged in the rotating shaft, and the electromagnetic receiving assembly is used for providing a driving power supply. According to the electromagnetic induction principle, a wireless induction power supply mode is adopted for supplying power to the fan assembly, so that the fan can be driven to rotate under the condition that a power line is omitted, real uninterrupted and dead-angle-free 360-degree rotary motion is achieved, and the blowing requirement of a user is met.

The utility model discloses a sewage treatment system based on solar photovoltaic power generation and power supply, which relates to the technical field of sewage treatment, and comprises an underground water pool and a biochemical treatment pool, one side of the biochemical treatment pool is fixedly communicated with the underground water pool. The fixing blocks are used for assisting in mounting and fixing of the steel strands, the steel strands provide tensioning prestress, and the shock-proof and anti-sinking effects are achieved, so that the protection effect on the top of the biochemical treatment pond is improved, stress deformation of the biochemical treatment pond is reduced, and the use effect of the biochemical treatment pond is guaranteed; when the photovoltaic panel inclines, the spring telescopic rod can support one side of the photovoltaic panel, the stability of the photovoltaic panel in use is improved, the working state of the battery module can be detected through the power failure alarm, an alarm is given in time when power supply of the battery module is abnormal, and normal use of photovoltaic equipment is guaranteed.

The clamping tool for the sand casting ball valve blank comprises an air cylinder, a fixing plate, a driving disc, a driving rod, a driven rod and a clamping jaw, and the fixing plate is fixedly arranged on the peripheral face of a cylinder body of the air cylinder in a sleeving mode; a plurality of racks parallel to the axis of the piston rod are fixed on the peripheral wall of the driving disc; the number of the driving rods is multiple, sector gears are fixed to one ends of the multiple driving rods, the tooth ends of the multiple sector gears are meshed with the multiple racks in a one-to-one correspondence mode, and the connecting positions of the sector gears and the driving rods are rotationally connected to the bottom face of the fixing plate; a rod body of the driven rod is fixed at the other end of the driving rod; the clamping jaw is fixed to one end of the driven rod so as to clamp a sand casting ball valve blank. The clamping device has the advantages of being large in load, large in stroke and accurate in positioning, can flexibly clamp ball valves of multiple varieties and specifications, and is wider in application range.

The invention relates to the technical field of prefabricated formworks, in particular to an arc-shaped equipment foundation prefabricated formwork equally-divided assembling and reinforcing method which comprises the steps that firstly, lofting is conducted on plywood according to the foundation diameter, a corresponding circular formwork outline is cut out, and a bottom fixing plate and a top end fixing plate are manufactured; finally, the base is divided into an even number of bottom fixing plates and top end fixing plates according to the diameter of the base; equilong battens are cut according to the height of the foundation to form supporting assemblies, and the supporting assemblies are evenly distributed between the bottom fixing plate and the top end fixing plate and fixed through nails, so that a prefabricated circular-arc-shaped equipment foundation framework is formed; the corresponding circular-arc-shaped equipment foundation framework is assembled on the bottom plate, and a complete circular-arc-shaped equipment foundation prefabricated formwork is formed; flattening an iron sheet higher than the top end fixing plate on the fixing cambered surface; and after the internal iron sheet is fixed, a circle is defined on the fastening groove by using a reinforcing steel bar, and the joint is fastened by using an opposite-drawing lead screw and then is welded and reinforced at the joint.

The invention relates to the technical field of earthquake simulation platforms, and discloses an earthquake simulation platform monitoring device for an engineering structure, and the device comprises an earthquake simulation platform which is installed on the top surface of a bottom plate; the mounting frame is fixed on the bottom plate, and the mounting frame is of a U-shaped structure; the electric hoist is mounted at the top of the mounting frame; the counterweight structure is arranged above the earthquake simulation platform, the counterweight structure comprises a counterweight water tank, the top surface of the counterweight water tank is connected with four branch slings, and the driving end of the electric hoist is connected with a main sling. According to the load adjusting mode, a traditional weight stack adjusting method is abandoned, the adjusting mode replaces the traditional weight stack adjusting method, operation is simpler, the load adjusting requirement can be quickly responded, and the working efficiency and flexibility are improved.

The invention discloses a display panel and a display device. The display panel comprises a first display area, a second display area and a first non-display area. In the first direction, the first non-display area is located on at least one side of the first display area, the first display area and the second display area are arranged in the second direction, and the first direction intersects with the second direction; the display panel comprises at least one first signal line and at least one row of first pixels which are located in a first display area; the first signal lines extend along a first direction, and the first signal lines are connected with one row of first pixels; the at least one second signal line and the at least one row of second pixels are located in the second display area; the second signal lines extend along the first direction, and the second signal lines are connected with one row of second pixels; the number of the first pixels arranged in the first direction is smaller than that of the second pixels arranged in the first direction; at least one compensation capacitor is located in the first non-display area and connected with the first signal line. The brightness difference of the display panel can be improved.

The utility model provides a suspension mechanism of a heavy-load Mecanum wheel and an automatic guide carrier, and belongs to the technical field of mobile platforms, the suspension mechanism comprises a first connecting plate, the Mecanum wheel, a second connecting plate, a driving piece and an elastic piece, the first connecting plate is provided with a speed reducer, the driving piece is connected with the input end of the speed reducer, and the second connecting plate is provided with a second connecting plate; the Mecanum wheel is installed at the output end of the speed reducer through a rotating shaft, the driving part drives the Mecanum wheel to rotate through the speed reducer, the second connecting plate is slidably installed on the first connecting plate through a guide rail sliding block structure, the top face of the second connecting plate is connected with the vehicle body, and the elastic part is arranged between the first connecting plate and the second connecting plate; the driving piece drives the Mecanum wheel to rotate through the speed reducer, the first connecting plate and the second connecting plate are matched through a guide rail sliding block structure, the effects of guiding and bearing external torque are achieved, the torque is borne by the two connecting plates, the strength of the connecting plates is easier to guarantee, and deformation is not prone to occurring.

The invention relates to the technical field of steel pipe manufacturing, and discloses an extra-large-wall-thickness stainless steel seamless steel pipe for an ocean platform, and the steel pipe is manufactured by adopting the following manufacturing method: step A, smelting; step B, die casting; c, forging, wherein the steel ingot is forged into a round billet; d, perforating and rolling: heating the round steel, and perforating to prepare a hollow billet; e, heat treatment, wherein fine grain treatment is conducted on the pierced billet; f, cold rolling and passivation are conducted, specifically, the steel pipe subjected to heat treatment is fed into a cold-rolling mill for finished product rolling; g, inspection is conducted, specifically, the steel pipe is subjected to final inspection; the steel pipe comprises, but is not limited to, about 0.25% of Co, about 0.15% of V, about 0.10% of Cu and about 0.045% of P. By adopting a refining process of'three-removal of molten iron and intermediate frequency furnace pre-solution, AOD, RH and die casting 'and combining an RH vacuum treatment technology, the dehydrogenation rate is more than 80%, and the content of harmful elements is effectively controlled, so that the corrosion resistance of the steel pipe is remarkably improved.

The invention relates to the technical field of intelligent welding, in particular to a vehicle-mounted intelligent welding robot which comprises a movable guide rail, a rail tackle is arranged at the top of the movable guide rail, and a welding robot body is arranged at the top of the rail tackle; the transmission assembly is used for driving the welding robot body to move horizontally, and the transmission assembly is connected with the moving guide rail; and the connecting assembly is used for rapid disassembly, assembly and maintenance of the welding robot body, and the connecting assembly is connected with the rail tackle. Through the design of the connecting assembly, rapid disassembly and assembly of the welding robot body and the rail tackle are achieved, and through the structures such as a deformation cavity, a weakening groove, a reset piece and a telescopic piece in the connecting assembly, connection and separation can be easily completed without complex tools and steps in the disassembly and assembly process, so that the maintenance difficulty and the time cost are greatly reduced, and the disassembly and assembly efficiency is improved. And the production efficiency is improved.

The invention discloses a heavy-load multi-rotor butterfly airship which comprises an airship body, a pod, an air cushion, a hanging component, a duct power system and a nuclear power generation system, and the pod is fixed under the airship body and used for loading the nuclear power generation system and airship-borne equipment; the air cushion is fixed below the airship body and used for landing buffering of the airship. The hanging part is arranged below the air cushion and is used for hanging an effective load; the duct power system is fixed to the joint of the upper surface and the lower surface of the airship body and used for controlling the airship to move and balancing the effective load weight. The nuclear power generation system uses nuclear fuel to generate power and provides power for the duct power system and the airship-mounted equipment of the airship. The butterfly-shaped airship and the multiple rotors are combined to form a composite layout, and the composite airship has the advantages of being large in load, easy to unload, high in spot hovering capacity and the like. Meanwhile, nuclear power generation is adopted as a power source of the airship, and the advantages of high power, lasting discharge, environment friendliness and the like are achieved.

The invention relates to a control method, a control device and clothes processing equipment, and the control method comprises the steps: determining to execute a foam cleaning program, and controlling a clothes processing cavity to alternately rotate along a first direction, a second direction and the first direction, and the ratio of the total duration of rotation in the first direction to the total duration of rotation in the second direction is (1-10): 1. Therefore, by setting the cleaning rhythm of the foam cleaning program, controlling the clothes processing cavity to alternately rotate in the first direction, the second direction and the second direction, and controlling the rotation duration proportion in different directions, the load can alternately roll along with the clothes processing cavity in different directions, and the friction between the load and the foam and the barrel wall is increased; the foam and the load in the clothes processing cavity are fully mixed, infiltrated and acted, so that the cleanliness is improved, and the cleaning effect is improved.