339results about How to "Reduced material required" patented technology

The invention discloses a high-nickel ternary positive electrode material with monocrystal morphology and a preparation method of the high-nickel ternary positive electrode material. The preparation method comprises the following steps of (1) mixing a soluble nickel salt, a soluble cobalt salt, a soluble manganese salt, a precipitant and a complexing agent, and performing heating reaction to obtain a precursor; (2) mixing the precursor, a lithium compound and a doping metal compound, and sintering in an oxygen atmosphere to obtain a base material; (3) mixing the base material and a detergent,performing stirring, centrifuging and drying, and uniformly mixing with a coating agent to obtain a coated product; and (4) sintering the coated product to obtain the high-nickel ternary positive electrode material with monocrystal morphology. The high-nickel positive electrode material prepared by the method has morphology similar to that monocrystal, and is high in compaction density and energydensity, low in resided alkali amount and good in processability; and meanwhile, with the introduction of a doping element, a lithium ion battery prepared from the high-nickel positive electrode material has relatively high cycle property, and the cycle property and the safety of the material are also improved by the coating layer.

The invention discloses a composite type multi-mode multi-purpose aircraft, and belongs to the technical field of overall design of aviation flight vehicles. The aircraft comprises a body of a fixed wing aircraft, a driving/autorotation rotor wing system, an expelling aero-engine and a flying control system, wherein the driving/autorotation rotor wing system comprises paddle hubs and paddles; the paddles are hollow, and guide tubes B are communicated with the inner parts of the paddles; an H2O2 catalysis decomposition engine is mounted at the tail end of each paddle; the H2O2 catalysis decomposition engines are connected with the guide tubes; the guide tubes are communicated with guide tubes A; the guide tubes A are connected with an H2O2 storage box. The aircraft disclosed by the invention has the property of vertical/short-distance lifting and suspension, or even can achieve certain back flying and side flying, and can also fly forwards at a high speed; due to adoption of paddle tip air injection driving/autorotation wings, no reaction torque is generated in any mode, and thus a tail rotor as well as a speed reduction transmission and control mechanism of an ordinary helicopter are canceled; the differential thrust for thrusting an aero-engine is adopted to control to achieve steadiness and control in flying direction at a low speed, the waste weight and the energy consumption are reduced, the cost is lowered, the complexity is alleviated, and the flying security in a complex environment is effectively improved.

The invention relates to a radial and axial roll-forming method for a large internal-stage annular piece. The method comprises the following steps of: (1) making a blank, namely performing hot-forging, upsetting, punching and slug-stamping on a bar material, and thus obtaining an annular piece blank for rolling; (2) designing a roll hole pattern, namely determining the size of the roll hole pattern according to a roll linear speed, an equipment parameter, a roll deformation condition and the size of the annular piece blank, and determining the size of the axial roll hole pattern according to the roll linear speed, the equipment parameter, the annular piece blank and the size of the annular piece blank; and (3) roll-forming, namely putting the obtained annular piece blank on an annular rolling machine for rolling, controlling an upper conical roller and a lower conical roller to move backwards in real time during rolling to make the bottom end of the annular rolling machine always contact outer diameters of the upper end face and the lower end face of the annular piece, controlling the rolling process by rationally distributing a feeding speed and a feeding amount according to three stages, namely pre-rolling, rolling and shaping rolling, and when the outer diameter of the detected annular piece reaches a preset value, finishing the rolling process. The method has the characteristics of high production efficiency, low production cost and high product quality.

A curved part 10 having a hat-shaped cross section is produced by press-forming without causing cracks and wrinkles. When producing a curved part 10, which is made up of a top plate 11, vertical walls 12a and 12b extended in parallel with each other along ridgelines 14a and 14b of the top plate, and outwardly directed flanges 13a and 13b which connect to leading edges of the vertical walls, and has a generally hat-shaped cross section, by press forming, the metal material sheet 601 is interposed and constrained by the die 502 and the blank holder 505 and is press-formed while the metal material sheet 601 being interposed and constrained by the pad 503 and the punch 504.

A tire includes a foam portion made of rubber or plastic material and foamed integrally to be a ring-shaped foam portion, and a resilient portion received in the foam portion and having a hollow space defined therein. The hollow resilient portion reduces the foam material required and provides proper resilient feature to keep shape of the tire.

The invention relates to a production method of a 360-degree spiral stair with cambered box beams. The stair is formed by assembling and mounting of the cambered box beams on two sides, steps and bottom uprights. The method includes the steps: adopting a computer to perform part lofting according to three-dimensional spatial point coordinates of flange plates and webs in design details and X-Y coordinates expanded in a two-dimensional plane; accurately blanking on a numerical control cutting machine according to programming; producing and assembling a moulding bed; adopting a total station to measure positioning points of bottom flanges of the stair beams on the moulding bed; subjecting cambered plates to rolling and pressing shaping; assembling segments by an 'integral assembly, end to end connection and section falling head' mode; subjecting the box stair beams to integral welding and correction; assembling and welding step plates; measuring and correcting overall dimensions; and inspecting, and coating after sand blasting. By the production method, used energy, materials and labor can be reduced, production cycle and construction difficulty are reduced, and quality of a finished product is improved.

An engine cooling fan shroud structure (20) for a vehicle includes a skirt (12′) defining a frame. The frame has a certain wall thickness and defines an opening (22) therein constructed and arranged to permit air to pass through the skirt. The skirt includes motor mount structure (14) supported in the opening and constructed and arranged for mounting a fan motor thereto. The frame defines passageways (18) there-through to reduce an amount of material of the skirt. A film material (28) has a wall thickness substantially less than the certain wall thickness and covers the passageways such that air may flow mainly through the opening.

The invention provides a new concept high-speed aerocraft propulsion system layout method. Two cycles are built in a propulsion system, namely a Brayton cycle with the air as the working medium and a closed cycle with supercritical state fluid as the working medium. The two cycles are coupled through a supercritical microscopic scale heat exchange technology, a supercritical state fluid turbine and compressor power balance. By adjusting related valves, the propulsion system can be in a turbofan engine model when taking off or flying at a low speed and in a turbine rocket engine model when flying at a high Mach number, so that it is guaranteed that the aerocraft can effectively cruise for a long time in both a subsonic state and a supersonic state. Through the supercritical microscopic scale heat exchange technology, the gas flow temperature at an inlet of a compressor can be effectively reduced when the propulsion system is flying at a high speed, and when the supercritical microscopic scale heat exchange technology is applied in combination with a closed cycle technology, optical distribution of energy of the propulsion system can be achieved. By means of the method, the defects of the propulsion system of an existing high-speed aerocraft are overcome, and working performance of the high-speed aerocraft propulsion system is remarkably improved when Ma ranges from 0 to 5.

Disclosed is a plant protection device that combines the functionality of a solid walled style plant protector that is good for the establishment of a new plant/seedling and perforated style plant protector that is good for an established plant. The wall of a tree/plant protector and growth device has thin areas inherent in the wall that degrade faster than other parts of the same device wall. This occurs based on the weather conditions (wind/rain/cold), UV degradation, biodegradation, and other factors. Over time these areas open up, allowing air, sun light and other environmental elements to reach the plant/tree within the protector. Strategically placing the thinner areas allows for designs for different plant/tree species and applications. Applications for climatic regions—northern, aired, wetlands, etc. Other applications examples are reforestation, vineyards, windbreaks, etc. The degradation of the thin areas can be controlled by using different materials, UV stabilizer levels and other methods.

The embodiment of the invention discloses a handheld electronic product, which comprises cover plate glass and a shell, wherein the shell is a square shell; borders are arranged at the four corners of the shell; the left side and the right side of the shell are free from borders; the cover plate glass is embedded into the shell in a contracting way; the back face of the cover plate glass is connected with the shell; and the borders arranged at the four corners of the shell are higher than the back face of the cover plate glass. According to the embodiment of the invention, the width of the handheld electronic product can be reduced, and installing procedures are reduced.

a waste processing machine for reducing wood waste comprises an accumulator operatively connected to the cutting system so as to power the cutting system upon discharge thereof. The accumulator is adapted to receive, store, and release a charge developed from a charging device operatively connected to the accumulator and one or more systems of the waste processing machine.

A method includes isolating carbon atoms as conditioned carbide anions below a surface of a reactant liquid. The conditioned carbide anions are then enabled to escape from the reactant liquid to a collection area where carbon nanostructures may form. A carbon structure produced in this fashion includes at least one layer made up of hexagonally arranged carbon atoms. Each carbon atom has three covalent bonds to adjoining carbon atoms and one unbound pi electron.

The invention discloses a self-rising deformable removable integral lifting steel platform system for ultrahigh varying-layer plane construction and the construction method thereof, comprising steel platform, plate lifter, flexible steel column, hanging staging and bearing pin, where the hanging staging is fixed with the steel platform, the steel platform is deformable and comprises primary and secondary beams, the junction of the two beams is provided with a rolling device, the secondary beam can take the primary beam as orbit to move relative to the primary through the rolling device. The invention uses the various construction columns installed in core tube sharing walls as support and climbing guide rails, uses the plate lifter as power, lifts the whole steel platform system by lifting screw rods connected with the steel platform, and arranges trolleys on partial secondary steel beams to make them able to move inward along the primary steel beam to the preset position at last, and completes the plane deformation of the steel platform and meets construction requirements for the core tube variation.

The invention relates to the technical field of lithium ion batteries. In order to solve the problems of poor compatibility and poor cycle performance, rate performance, processability, and safety ofexisting high nickel ternary materials and electrolytes, the invention provides a high nickel ternary positive electrode material applied to a lithium secondary battery and a preparation method thereof. The high nickel ternary positive electrode material applied to the lithium secondary battery comprises a base material and a composite coating layer outside the base material. The chemical formulaof the base material is Li1.02Ni1-x-yCoxMnyMZO2. M is selected from the group consisting of Al, Mg, Ti, and Si. (1-x-y), x, y, and z are the molar ratios of Ni, Co, Mn, and M respectively. (1-x-y) isgreater than or equal to 0.6 and less than 1. x is greater than 0 and less than 0.4. y is greater than 0 and less than 0.4. z is greater than 0 and less than or equal to 0.02. According to the invention, the high nickel ternary positive electrode material applied to the lithium secondary battery has the advantages of low surface alkalinity, good processability, excellent electrochemical performance, high safety, and good compatibility with electrolytes; and the battery made of the material has the advantages of significantly improved cycle life and excellent electrochemical performance.

The invention discloses a U-shaped self-propelled wave power generation device. The wave power generation device comprises a ship body, a wave energy collection and conversion mechanism and a propelling mechanism; the ship body comprises a cabin, a cockpit, a device chamber, a deck and a tail plate, wherein the deck is arranged at the upper part of the cabin, the cockpit is arranged on the deck, the device chamber is arranged inside the cabin, and the tail plate is arranged at the tail part of the cabin; the wave energy collection and conversion mechanism comprises a front vertical pipe, a front air turbine generator set, a rear air turbine generator set, a rear vertical pipe and a horizontal pipe; and the horizontal section of the front vertical pipe is approximately triangular, and the horizontal section of the rear vertical pipe is quadrilateral, the vertical section of the horizontal pipe is pentagonal, and the front vertical pipe, the horizontal pipe and the rear vertical pipe sequentially communicate to form a U-shaped channel. The wave power generation device has the advantages that a foundation is laid for low cost, the wide sea area and high-efficiently utilization of thewave energy.

A partially expanded stent comprising a proximal end and a distal end in communication with one another, a tubular wall disposed between the proximal end and the distal end, the tubular wall having a longitudinal axis and a porous surface defined by a plurality of interconnecting struts. The partially expanded stent has been expanded ex vivo by the application of a radially outward force thereon from a first unexpanded position to a second pre-expanded position at which the stent has reached a point of plastic deformation. The partially expanded stent is further expandable in vivo upon the application of a radially outward force thereon from the second pre-expanded position to a third expanded position wherein the stent will undergo plastic deformation to reach a maximum yield point.

The invention discloses a suspension bridge with high torsional rigidity. The suspension bridge comprises a main beam, a cable bent tower, a main cable and suspension rods, wherein the main cable is arranged on a longitudinal central elevation of the main beam, the suspension rods are arranged on two transverse sides of the main beam and used for suspending the main beam by virtue of the main cable, so that the main cable, the suspension rods and the main beam form a structure with the cross section in a space triangular shape; by utilizing the stability of the triangle, a box-beam structure like the triangle is formed, the overall torsional rigidity and torsional vibration frequency of the suspension bridge can be fundamentally improved, the critical wind speed for torsional instability under the calm wind can be directly improved, the ratio of the torsional vibration frequency and the vertical vibration frequency also can be increased, the critical wind speed of the vibration can be increased, and the safety of the large-span suspension bridge can be guaranteed; moreover, materials and cost of the existing suspension bridge are not increased, the cross section can be increased only by adopting one main cable, the number and cross section of the suspension rods can be increased, and the torsional rigidity can be further improved.

A replaceable face-milling head configured for rotating about a central rotation axis A_R. The head includes a cutting portion and an integrally formed threaded shank-connector portion, the latter of which being configured for connecting to a shank. A length-diameter ratio LDR, defined as a cutting portion length L_C divided by a cutting portion diameter D_E, fulfills the condition: LDR≦1.00.

The invention discloses a nanometer waterborne woodware paint. The paint is prepared by stirring the following raw materials in parts by weight: 65-70 parts of polyacrylate emulsion, 10-15 parts of linseed oil, 5 parts of talcum powder, 10-15 parts of candelilla wax, 6 parts of sodium hexametaphosphate, 20 parts of propylene glycol, 16 parts of alkali lignin, 2 parts of zircon isocaprylate, 13 parts of nano-TiO2 slurry, 5 parts of defoaming agent and 4 parts of wetting agent. Experiments prove that the product of the invention has good wetting property, flexibility and weather resistance, excellent sealing property and grindability and simpler material and technology and can be widely used in the surface finishings of solid wood furniture and panel type furniture.

The present invention provides an improved flat display panel frame, wherein two L-shape workpieces or four strip-like workpieces are butt-jointed to form a frame body, and the perimeter of the frame body is bent to form an external bent portion, and thus, an flat display panel frame is completed. In the present invention, as the frame body is formed via butt-jointing multiple workpieces, the punching process for the metallic workpiece is more flexible, and an optimal workpiece arrangement can be used to achieve the highest manipulation efficiency of material. Thus, the material is saved, and the material cost is reduced. Further, the scrap is decreased, and the scrap-processing cost is also reduced.

The invention discloses an underwater bearing platform construction method. The underwater bearing platform construction method includes the following steps of (1) construction preparation, (2) steel plate coffering, (3) water pumping, (4) staking out in survey, (5) excavation of foundation pit, (6) pile head removing by chiseling, (7) underwater slush pumping, (8) cushion construction, (9) bearing platform construction, (10) concrete pouring, (11) concrete maintaining and form removal and (12) cofferdam removal. By means of the underwater bearing platform construction method, a bearing platform is stable and firm, meanwhile, a construction scheme is optimized, the construction period is further shortened, manpower and material resources are greatly reduced, economic benefits are remarkable, flying dust can not occur during construction, environment protection can be achieved, the accuracy during construction is effectively improved by the aid of secondary setting out of the bearing platform, the deviation is reduced, construction qualities are improved, and a whole pier column is stable.

The invention discloses a dielectric phase shifter with novel conducting cavities. The dielectric phase shifter includes an outer shell, dielectric sheets, a circuit board and coaxial cables; two rectangular cavities are formed in the outer shell; one conducting cavity is formed at one side of each cavity, wherein the conducting cavity is connected with the cavity; each conducting cavity is hollow and is a circular hole of which the diameter is 3.6 mm, and a small groove of which the width is 1.2 mm formed at one side of the hole; in each conducting cavity 4, a portion with a reserved width is maintained to be original at a position where the outer conductor of a corresponding coaxial cable is welded to the conducting cavity 4, and a portion of which the width is 15mm is machined downwards so as to be removed, and therefore, the coaxial cable can extend into the conducting cavity so as to be welded to the conducting cavity; the circuit board is designed into a rectangle with four grooves formed at one side; and the four grooves are corresponding to the edges of circuit board pads for welding the inner conductors of the coaxial cables. When welding is carried out, only one-time clamping is required, and therefore, a welding technique is better, and the economical efficiency of welding is improved; and the conducting cavities are utilized to excellently wrap the outer conductors of the coaxial cables, distortion can be avoided, bending stress of the coaxial cables can be avoided, the risk that welding spots and the circuit board are damaged can be lowered, and hidden hazard points in intermodulation can be decreased.

Disclosed is a throttle valve (1, 25), having a housing (2), comprising an inlet opening (3) for a fluid under an inlet pressure, a throttle (4, 27), by means of which the fluid can be throttled to an outlet pressure, and an outlet opening (5) for the fluid, and an actuation element (11) at the outside of the housing (2), a rotatable shaft (13), and a piston (16), which is axially movable within the housing (2) in a tubular throttle cage (15), wherein a rotation of the shaft (13) can be induced by the actuation element (11) and an axial movement of the piston (16) can be induced by the rotation of the shaft (13) and by the axial movement of the piston (16) a throttle cross section of the throttle (4, 27) can be adjusted, For under water application, in particular in oil and gas drilling with large pipe cross sections the throttle valve according to the invention is improved, so that primary magnets are mounted to the actuation element (11, 32), secondary magnets are mounted to the shaft (13), and a roller body screw drive (20) is mounted to the shaft (13), wherein a rotation of the actuation element (11, 32) is transferred to the shaft (13) by means of magnetic coupling of the primary magnets with the secondary magnets, and converted into the axial movement of the piston (16) by means of the roller element screw drive (20).