229results about How to "Mature manufacturing technology" patented technology

The invention discloses a charging pressing forming method for a variable-cross-section special-shaped pipe, and relates to a forming manufacturing method of a metal pipe. The problems that an existing low-internal-pressure forming technology only can form a pipe with the unchangeable section perimeter, and meanwhile, in the internal-high-pressure forming process of an advanced high-strength steel variable-cross-section pipe, the pressure is high, springback is large, and a mold is seriously worn are solved. The forming method comprises the steps that firstly, an upper expansion mold and a lower expansion mold are assembled on a pressure machine; secondly, the upper expansion mold descends to perform mold assembly, a pipe blank is subject to charging, and the pipe blank expands until the pipe blank is attached to the mold; thirdly, the internal pressure of the pipe blank is relieved; fourthly, an upper pressing block and a lower pressing mold are assembled on a pressure machine; fifthly, the upper pressing block descends to perform mold assembly; sixthly, under the joint action of mechanical pressure of the mold and hydraulic pressure of an inner cavity of a variable-cross-section round pipe, mold attaching is carried out, the variable-cross-section round pipe is formed into the variable-cross-section special-shaped pipe, and the forming process is finished; and seventhly, the internal pressure of the variable-cross-section special-shaped pipe is relieved, and the variable-cross-section special-shaped pipe is cut, so that the variable-cross-section special-shaped pipe meeting the design requirement is obtained. The method is used for forming the variable-cross-section special-shaped pipe.

The invention discloses a variable-gradient fractal lattice sandwiched reinforcement phase change heat sink and aims to provide an efficient phase change heat sink which is high in heat exchange efficiency, has certain universality and can be developed in a serialization mode. The variable-gradient fractal lattice sandwiched reinforcement phase change heat sink is realized according to the following technical scheme: reinforcement heat transfer structures are distributed in a phase change heat sink shell in an array; each variable-gradient fractal lattice sandwiched unit takes a variable-gradient V structure as a first-stage reinforcement heat transfer structure (4) according to the heat transfer and heat exchange characteristics of the phase change heat sink; on this basis, at variable-gradient V-shaped ends of the first-stage reinforcement heat transfer structures, the variable-gradient V structures in the same shape are gradually increased to form multiple stages of reinforcement heat transfer structures, and the specific surface areas of the multiple stages of reinforcement heat transfer structures are multiplied in sequence; the first-stage reinforcement heat transfer structures can transfer heat to an area far away from a heat radiation bottom plate rapidly in a reinforcement mode, and the second-stage reinforcement heat transfer structures (5) and the third-stage reinforcement heat transfer structures can transfer heat to phase change material far away from the heat radiation bottom plate rapidly to complete heat exchange.

The invention relates to a method for preparing hydrogen through photoanode-photovoltaic battery coupled dual-illumination fully-photic-driven decomposition of water. Efficient decomposition of water is realized under sunlight illumination conditions by using coupling of a photoelectrocatalysis technology with a photovoltaic battery technology, adopting a water oxidation cocatalsyt modified semiconductor material as a photoanode, placing a proton reduction cocatalyst modified Si battery in an electrolyte as a photocathode, directly connecting the positive electrode of the Si battery with the anode through a lead and allowing the surface of the cathode to contact with the electrolyte. The method realizes fully photic driven decomposition of water without applied bias conditions, and the solar energy utilization efficiency STH of the method reaches 2.2% or above.

The invention discloses a lithium anode for a high-specific-energy secondary battery. The lithium anode for the high-specific-energy secondary battery consists of a conductive substrate, a nanotube array, lithium metal and a barrier layer, wherein the nanotube array grows on the conductive substrate in an oriented manner; the lithium metal exists in the nanotube array; the barrier layer covers the nanotube structure. The lithium anode for the high-specific-energy secondary battery has the advantages that the lithium metal exists in a pipeline structure in a sealed manner, lithium dendrites can be prevented effectively, and a metal organic frame (MOF) which is rich in electrolyte or another lithium conducting material is used as the barrier layer, so that overgrowth of the lithium dendrites in local nanotubes can be prevented effectively, and the safety of the battery is ensured.

The invention discloses an optical fiber with a ring-shaped doped layer, which is used in an optical fiber laser and composed of an inner clad layer (101), a ring-shaped doped layer (102), a middle clad layer (103), an outer clad layer (104) and a protective layer (105), wherein the ring doped layer (102), the middle clad layer (103), the outer clad layer (104) and the protective layer (105) are, from inside to outside, sequentially clad on the inner clad layer (101), and the inner clad layer (101) is an undoped optical fire core. The invention also discloses a method for preparing the optical fiber with a ring-shaped doped layer, and a laser taking the optical fiber with a ring-shaped doped layer as a gain medium. According to the invention, the traditional fiber core doping is changed into a ring-shaped doped layer, so that the laser oscillation is actually performed in a ring-shaped waveguide, and then through reasonably designing the thickness of the ring-shaped waveguide, a single-mode operation can be kept; meanwhile, because the cross section area of the doped layer is large, the optical fiber with a ring-shaped doped layer is suitable to high-power output, therefore, the output power of the optical fiber laser using the optical fiber can be improved.

The invention discloses a working medium contact cooling system of power batteries. An insulating liquid heat-conducting working medium is contained in a working medium box; a working medium pump sinks into the insulating liquid heat-conducting working medium; a filter is arranged at an inlet of the working medium pump; the working medium pump is connected with a spray main pipe; a plurality of spray branch pipes are connected with the spray main pipe in parallel; each spray branch pipe is provided with a plurality of nozzles; the nozzles are opposite to a high-power battery pack; the spray branch pipes and the spray main pipe form a cage frame; the high-power battery pack is placed in the cage frame; the spray branch pipes are distributed on the side surfaces and the upper part of the high-power battery pack to form a relatively open spray structure; and the insulating liquid heat-conducting working medium is a nonpolar substance and is free of a phase change in the spray process. The invention further provides a working method of the working medium contact cooling system of the power batteries. According to the working medium contact cooling system, the cooling structure is reasonable and the cooling efficiency is high.

The invention discloses a flying saucer and two smoke- and fire-free engines. The flying saucer is composed of a cabin and a disk which rotates round the cabin. The disk includes a disk-shaped wing and a rotary engine. The cabin includes a driving cabin, a passenger cabin and a device cabin. The rotary engine sucks air which is mixed with water, and then the mixture is jetted out horizontally through jet tubes installed on the edge of the disk according to the sprayer principle, so that a generated reactive force enables the disk to rotate at a high speed, thereby generating an upward raising force on the disk. Four fixing wings are installed outside the device cabin to eliminate reverse rotation of the cabin. A vector engine and a diesel power generating set are installed in the device cabin under the disk. The vector engine sucks large amount of air through an air inlet duct in the passenger cabin to form vacuum above the passenger cabin, which enables air pressure difference between an upper surface and a lower surface of the disk to be increased, thereby generating a huge raising force. The sucked air is compressed to form high-pressure gas which is discharged into vector jet tubes and is jetted out, wherein the directions and the angles of the vector jet tubes are adjustable to generate pushing forces in different directions, thereby achieving maneuvering flight of the flying saucer.

The invention discloses a multi-rotor wind generating system with suspenders. The multi-rotor wind generating system comprises a lower tower 1, a rotary driving device 3, wind turbines, an upper tower 2, ropes and/or connecting rods 8, beams 6, a cabin frame 7 and the suspenders 9, wherein the rotary driving device is arranged between the upper tower and the lower tower; two sides of the upper tower are connected with one end of each beam; the outer end and the middle part of the uppermost beam are connected with the top of the upper tower through the ropes and/or the connecting rods; outer ends of adjacent beams are connected through the ropes and/or the connecting rods; middle parts of the adjacent beams are connected through the ropes and/or the connecting rods; the upper ends of the suspenders are fixedly connected with the lowermost beam; the cabin frame is arranged on the upper tower; the wind turbines are arranged on the upper tower; and the wind turbines are fixedly connected with the top of the upper tower, the beams, the cabin frame or/and the lower ends of the suspenders. The multi-rotor wind generating system has the advantages of long service life, small floor area, low installation and maintenance cost, high reliability, wide application range, no rotary driving device in a cabin, and low bearing overturning moment.

The invention discloses a working medium contact cooling system for high-power electromagnetic generators. The working medium contact cooling system comprises the high-power electromagnetic generators, an insulating liquid heat-conducting working medium, nozzles, spray branch pipes, a spray master pipe, a working medium pump, a filter and a working medium box, wherein the insulating liquid heat-conducting working medium is contained in the working medium box; the working medium pump sinks into the insulating liquid heat-conducting working medium; the filter is arranged at an inlet of the working medium pump; the working medium pump is connected with the spray master pipe; a plurality of spray branch pipes are connected with the spray master pipe in parallel; each spray branch pipe is provided with a plurality of nozzles; the nozzles are opposite to the high-power electromagnetic generators and spray towards the front surfaces and the back surfaces of the high-power electromagnetic generators to form a relatively open spray structure; the insulating liquid heat-conducting working medium is a non-polar substance; and the insulating liquid heat-conducting working medium is free of a phase change in the spraying process. The invention further provides a working method of the working medium contact cooling system for the high-power electromagnetic generators. The heat dissipation structure is reasonable and the heat dissipation efficiency is high.

The invention discloses a multi-rotor wind power generation system, which includes a lower tower 1, a rotary drive device 3 and a wind turbine, and also includes an upper tower 2, ropes and/or rods 8, beams 6 and a nacelle frame 7, and the rotary drive device is arranged on Between the upper tower and the lower tower, the beams located on both sides of the upper tower are connected to the upper tower through one end of the beam, and the outer end and middle part of the uppermost beam are respectively connected to the upper tower by ropes and/or rods The top ends of the adjacent beams are connected by ropes and/or rods, and the middle parts of adjacent beams are connected by ropes and/or rods. The nacelle frame is set on the upper tower, and the wind turbine is connected to the top of the upper tower. , the beam or/and the nacelle frame are fixedly connected, the wind turbine includes the wind wheel 4 and the nacelle 5, and there are 2-100 wind turbines. The blade of the invention has long service life, small occupied area, low installation and maintenance cost, good system reliability and wide application range, cancels the slewing bearing or slewing driving device in the nacelle, and improves the stress of the beam.

The invention discloses a coding chip based microarray and a preparation method thereof. In a typical embodiment, the preparation method includes: providing a carrier, which has at least one fluid accommodating cavity, in which at least one bearing surface is distributed; coating the bearing surface with an adhesive evenly; adding a selected fluid into the fluid accommodating cavity till immersionof the bearing surface with the selected fluid; depositing coding microchips dispersed in the selected fluid to the bearing surface, and performing combination with the adhesive distributed on the bearing surface; and curing the adhesive so as to fix the microchips on the bearing surface. The invention also discloses a biochemical kit based on the microarray, a detection system, a method and thelike. Compared with the prior art, the coding chip based microarray provided by the invention shows outstanding advantages in detection multiplicity, high efficiency, sensitivity and other aspects, can achieve high flux and high accuracy sample detection, also is simple in operation, and has manufacturing simplicity and economical efficiency.

The invention relates to an information processing method based on an identification number, comprising: (a), a mobile terminal receives a radio-frequency signal which is transmitted by a radio-frequency device and contains the identification number, and extracts the identification number from the radio-frequency signal; (b), the mobile terminal generates an information processing request according to the identification number; and (c), the mobile terminal selects one or more servers according to the server information obtained by the mobile terminal and sends the information processing request to the one or more servers; and (d), the one or more servers respond to the information processing request so as to carry out information processing. The invention further relates to a system used for implementing the information processing method.

The invention discloses a vibration reduction ship pipeline cabin penetrating piece which comprises a pipeline and a cabin wallboard. The pipeline is externally provided with a cabin penetrating piece shell. The cabin penetrating piece shell is divided into an outer cabin penetrating piece shell body, a wavy shell body and an inner cabin penetrating piece shell body. The outer cabin penetrating piece shell body is connected with the cabin wallboard, the wavy shell body is connected with the outer cabin penetrating piece shell body at crest positions, and wavy fireproof rubber is arranged between the wavy shell body and the outer cabin penetrating piece shell body. Perpendicular connecting pieces are arranged on the inner cabin penetrating piece shell body and are provided with connecting rings, and parallel springs are arranged between the connecting rings and are parallel to the outer cabin penetrating piece shell body and the inner cabin penetrating piece shell body. Perpendicular springs perpendicular to the wavy shell body are arranged on the crests, and the parts, at the joint of the crests and the outer cabin penetrating piece shell body and at the outer portion of the outer cabin penetrating piece shell body, of the perpendicular springs are provided with bolts. A transverse partition plate is arranged at the middle portion of the cabin penetrating piece shell and is connected with the parallel springs. The vibration reduction ship pipeline cabin penetrating piece has the following beneficial effects that firstly, the vibration reduction capability of the pipeline cabin penetrating piece under collisions is improved; secondly, the vibration reduction capability of the cabin penetrating piece can be adjusted according to needs of different pipeline systems; and thirdly, the wavy shell body in the cabin penetrating piece can well reduce stress concentration.

The invention provides an impact-resistant connecting device of a pipeline and equipment. The impact-resistant connecting device comprises an outer barrel, a cylindrical helical spring, a rubber gasket, a rubber barrel cover, a connecting pipe and a flange, wherein one end of the connecting device is connected with the equipment through the outer barrel which is internally provided with springs, while the other end is connected with the pipeline through the flange and the connecting pipe; at the connecting end with the equipment, the connecting pipe is inserted into the equipment through the rubber gasket to realize the flexible connection of the pipeline and the equipment; the interior of the outer barrel of the connecting device is provided with a plurality of groups of springs which can be used for bearing larger deformation, and the outer barrel and the connecting pipe are fixed through a clamping trough so as to realize a constraint effect in the axial direction and the vertical direction of the pipeline and guarantee the tightness of the connection of the pipeline and the equipment; and meanwhile, the connecting part of the end part of the barrel, the connecting pipe and the equipment is provided with the rubber gasket so as to play the roles of sealing and flexible connection.

The invention provides a section-variable hollow component forming device and a section-variable hollow component forming method, belongs to the technical field of hydraulic formation, and solves the problems that when a hollow component with a large hydraulic formation section size difference of a traditional tubular product is formed, axial feeding is difficult, the deformation uniformity is poor and the like. A closed cavity is formed by an upper die base, a left puncher pin, a right puncher pin and a lower die base; a puncher pin liquid injection hole is formed on the left puncher pin or the right puncher pin; a pressurizing device is communicated with the puncher pin liquid injection hole through a liquid channel; and the puncher pin liquid injection hole is used for injecting a liquid medium into a pipe blank. A pipe blank is placed into a die cavity and the puncher pins at the two ends are used for fixing the pipe blank; the upper die base is moved downwards to form a sealed hollow cavity with the lower die base; a force transfer medium is injected into the tubular product from the puncher pin injection hole at one side to pressurize; and the formation of a diameter-changing tube piece is realized under the matching effect of moving the left and right puncher pins to the inner side. After the formation, pressure in the die cavity can be removed after the formation, the upper die base is removed to separate the left and right puncher pins, and the formed piece is taken out. The section-variable hollow component forming device and the section-variable hollow component forming method are suitable for forming the hollow component with the great change of the section size and the circular-section or non-circular-section diameter-changing part.