34results about How to "Reduce industrial manufacturing costs" patented technology

The invention relates to the field of a travel tool, particularly to a vibration-isolating electric double-row roller skate. The roller skate is characterized by comprising components, such as a skate support, a structural support, roller supports, rollers, a shoe-buckle band, a hub motor, a battery and a controller. In such a manner that the structural support is installed below the skate support and the roller supports and rollers form a double-row double-column roller group, stability of the electric roller skate is effectively improved. The roller skate travels stably and is easy for a beginner to master. The driving resistance is reduced, so that the roller skate can easily pass through a coarse complex road surface and smoothly travels. The carrying capacity is improved. A movable shoe-buckle is designed to have a backward opening, so that the roller skate is convenient and fast to wear without a tedious process for skate changing. The roller skate is simple in structure, greatly saved in weight and size of a travel tool, and convenient to carry and use. The roller skate can electrically travel and can slide by human power, integrate transportation travel and fitness and entertainment into one body, and is suitable for wide popularization.

The invention discloses a preparation method of p-nitrobenzaldehyde. The preparation method comprises the following steps: p-nitrotoluene, which is used as a raw material, undergoes bromine bromination under the catalysis of azo-dialkyl nitrile, so as to generate 4-nitrobenzyl bromide and hydrogen bromide; hydrolysis of 4-nitrobenzyl bromide is catalyzed by an aqueous carbonate solution to obtain p-nitrobenzyl alcohol; and hydrogen peroxide oxidation of p-nitrobenzyl alcohol is catalyzed by sodium hydroxide so as to generate a target product, namely p-nitrobenzaldehyde. According to the invention, the azo-dialkyl nitrile solid catalyst replaces a peroxycarbonate liquid phase catalyst to catalyze the bromination reaction, so as to raise operational safety of the industrial preparation reaction; by using aryl halide as a solvent medium, use of a haloalkane solvent medium is avoided, and pollution of volatile organic solvents with low boiling point is avoided; and by the hydrogen peroxide oxidation method, cleanliness of the industrial preparation reaction is raised, and environmental pollution is reduced. According to the invention, product yield is increased; yield is raised by about 3% in comparison with yield of existing traditional industrial methods; overall yield reaches 76%; and product purity reaches 99% and above.

The invention belongs to the technical field of digital information transmission, and discloses a converging device of vortex electromagnetic wave and a wireless communication system. The microwave lens is laminated by a plurality of circular structures, and the circular structure is composed of a part of basic units located at the center and a plurality of circular arcs. The circular arc structure is composed of several basic units, the cylindrical radius of the basic unit in the same position in each layer decreases from top to bottom, the cylindrical radius of the basic unit in the same layer decreases from inside to outside, and the cylindrical radius of the basic unit in the same circular arc structure in the same layer is the same. The feed center is located at the central axis of the lens. Compared with the prior art, the invention effectively separates the generation and the convergence of the vortex electromagnetic wave, and can effectively act on the existing energy-divergingvortex electromagnetic wave. 3D printing technology is adopted in that microwave lens of the invention, the design is simple, the price is low, and compared with the prior art, the industrial manufacturing cost can be greatly reduced.

The invention discloses an all-aluminum slab-wall structure. The all-aluminum slab-wall structure comprises a chair rail, a skirt waist installation part, a ground shell nosing part and a seamless installation part; the chair rail comprises an aluminum panel layer and a corrugated plate layer fixed to the aluminum panel layer; the skirt waist installation part comprises a steel keel fixed on a wall and a string course installation part fixed on the upper portion of the chair rail, the steel keel is located at the edge of the chair rail, and the steel keel and the chair rail are fixed; the ground shell nosing part comprises the steel keel, the off-ground chair rail, a hanging element used for fixing the upper end of the chair rail, and a towing element used for supporting the lower portionof the chair rail which are arranged from top to bottom in sequence, and the hanging element and the towing element are both fixed on the steel keel; and the chair rail comprises the aluminum panel layer and the corrugated plate layer fixed to the aluminum panel layer by bonding, and the steel keel is fixed on the wall. The invention provides an environment-friendly all-aluminum wallboard intentionally.

It is an object of the present invention to provide a three-dimensional network aluminum porous body which can be used for a process continuously producing an electrode and enables to produce a current collector having small electric resistance in the current collecting direction, and an electrode using the aluminum porous body, and a production method thereof. In a sheet-shaped three-dimensional network aluminum porous body for a current collector, when one of two directions orthogonal to each other is taken as an X-direction and the other is taken as a Y-direction, a cell diameter in the X-direction of the three-dimensional network aluminum porous body differs from a cell diameter in the Y-direction thereof.

The invention provides a preparation method of a positive electrode material lithium iron phosphate. The preparation method comprises the following steps of: (1) mixing a lithium source, an iron source and a phosphoric acid aqueous solution to form a mixed solution, and stirring the mixed solution to prepare sol; (2) under heating and stirring, completely volatilizing the solvent from the sol to obtain wet gel, and carrying out vacuum drying on the wet gel to obtain dry gel; and (3) grinding the dry gel to obtain a powdery precursor, and carrying out heat treatment on the powdery precursor in a reducing atmosphere to obtain the lithium iron phosphate. The invention also provides a lithium ion battery. The lithium ion battery comprises a positive electrode plate, a negative electrode plate, electrolyte and a diaphragm; and the positive electrode plate comprises the positive electrode material lithium iron phosphate prepared by the preparation method. According to the method disclosed by the invention, the industrial preparation cost of the lithium iron phosphate is reduced, and the prepared lithium iron phosphate has good electrochemical performance.

The invention discloses a transfer method of a semiconductor film layer and a preparation method of a composite wafer. The method comprises the following steps: preparing a first dielectric layer on the upper surface of a semiconductor substrate, and preparing a metal film layer on the lower surface of the semiconductor substrate; preparing a second dielectric layer on the second semiconductor substrate; bonding the first dielectric layer and the second dielectric layer to enable the first semiconductor substrate and the second semiconductor substrate to be combined; etching a groove in the side surface of the first semiconductor substrate; applying external force to the metal film layer on the lower surface of the first semiconductor substrate, so that the first semiconductor substrate issubjected to transverse crystal cracking at the groove, and the semiconductor film layer subjected to crystal cracking is transferred to the second semiconductor substrate. According to the invention, the preparation of the high-quality, large-area and low-cost semiconductor single crystal thin film layer on the XOI substrate can be realized; meanwhile, the method can repeatedly utilize the remaining first semiconductor substrate and separate multiple semiconductor film layers from the first semiconductor substrate for preparing multiple XOIs, so that the industrial manufacturing cost is greatly saved.

Self-starting vertical axis wind rotor (11) able to start also at very low wind speeds, for example of the order of 1 m / s, comprising a fixed support structure; a machine for converting the circular movement into electric current, associated with said structure; a vertical shaft rotatably supported by the structure and connected to the machine so that the rotation of the shaft causes the generation of electric current by said machine; a rotatable wind structure connected centrally to the vertical shaft and at the periphery to a plurality of rotor blades; wherein each rotor blade of said plurality of blades comprises three elongated bodies arranged in cascade and having the same wing profile, said elongated bodies being arranged vertical and substantially parallel to each other and to the shaft.

The invention belongs to the technical field of digital information transmission, and discloses a converging device of vortex electromagnetic wave and a wireless communication system. The microwave lens is laminated by a plurality of circular structures, and the circular structure is composed of a part of basic units located at the center and a plurality of circular arcs. The circular arc structure is composed of several basic units, the cylindrical radius of the basic unit in the same position in each layer decreases from top to bottom, the cylindrical radius of the basic unit in the same layer decreases from inside to outside, and the cylindrical radius of the basic unit in the same circular arc structure in the same layer is the same. The feed center is located at the central axis of the lens. Compared with the prior art, the invention effectively separates the generation and the convergence of the vortex electromagnetic wave, and can effectively act on the existing energy-divergingvortex electromagnetic wave. 3D printing technology is adopted in that microwave lens of the invention, the design is simple, the price is low, and compared with the prior art, the industrial manufacturing cost can be greatly reduced.

The invention discloses a method for transferring a semiconductor thin film layer and a method for preparing a composite wafer, comprising: preparing a first dielectric layer on the upper surface of a semiconductor substrate, and preparing a metal film layer on the lower surface; Prepare the second dielectric layer on the first dielectric layer; bond the first dielectric layer and the second dielectric layer to combine the first semiconductor substrate and the second semiconductor substrate; etch grooves on the side of the first semiconductor substrate; An external force is applied to the metal film layer on the lower surface of the semiconductor substrate, causing the first semiconductor substrate to be crystallized laterally at the groove, and the semiconductor thin film layer after the crystallization is transferred to the second semiconductor substrate. The present invention can realize the preparation of high-quality, large-area, and low-cost semiconductor single crystal thin film layer on the XOI substrate; at the same time, this method can reuse the remaining first semiconductor substrate and separate it from the first semiconductor substrate. The multi-layer semiconductor thin film layer is used to prepare multiple XOIs, which greatly saves the industrial manufacturing cost.

The invention discloses an orbit angular momentum vortex electromagnetic wave generation apparatus design method comprising the following steps: step 1, a cylindrical microwave lens is designed and relative dielectric constants corresponding to basic unit structures of different sizes are calculated; step 2, the microwave lens is formed; step 3, the microwave lens is made; step 4, the microwave lens and a feed source are placed. The beneficial effects of the method are that: (1) compared with a discrete rotating phase plate, the microwave lens disclosed in the invention is advantaged by tightstructure connection, easy fixation, portability, easy usage, a small divergence angle of a wave beam of generated vortex electromagnetic waves, concentrated directions, and large transmission distance; (2) the microwave lens of the present invention allows the bandwidth of a transmitting antenna to be widened to 7 GHz to 13 GHz; (3) all-dielectric material is adopted in the microwave lens of thepresent invention and is low in energy consumption and high in corrosion resistance; (4) the microwave lens is made via use of 3D printing technology, and low price of the technology can help greatlyreduce industrial manufacturing costs.

The invention provides a magnetic field sensor based on an organic field effect transistor and a preparation method thereof, and belongs to the technical field of sensors and preparation thereof. Themagnetic field sensor sequentially comprises a substrate, a gate electrode, a dielectric layer, an organic semiconductor layer, a source electrode, a drain electrode and a packaging layer from bottomto top. The organic semiconductor layer comprises a mixed material of a magnetic nano material and an organic semiconductor material, and the content of the magnetic nano material is 0.1-1wt%. The magnetic field sensor has high sensitivity to magnetic field signals, the manufacturing cost is low, the service life of the magnetic field sensor is prolonged; the preparation of a high-stability deviceis realized, magnetic field transistors with different magnetic field intensities and sensitive response can be manufactured according to requirements, detection of magnetic fields with various intensities can be realized, the application range is broadened, and the magnetic field sensor has huge potential in flexible, miniature, bionic and disposable human body electronic devices, and finally, the prepared magnetic field sensor structure based on the organic field effect transistor has the characteristics of simple structure, miniaturization and portability.

The invention provides a vortex electromagnetic wave generating device for solving the problem that the effective working frequency range of the existing vortex wave generating device is narrow. The vortex electromagnetic wave generating device comprises a microwave lens, a metal reflection plate and a feed source; the microwave lens is a cylindrical structure composed of a plurality of fan-shapedcolumn structures, each fan-shaped column structure is stacked by a plurality of fan-shaped structures, and the fan-shaped structure is composed of a partial basic unit located and the center and a plurality of fan-shaped arcs; the basic unit is composed of three mutually perpendicular cylinders, the cylindrical radiuses of various layers of base units of the microwave lens progressively decreasefrom top to bottom, the cylindrical radiuses of the same layer of basic units decrease from the inside to the outside, the cylindrical radiuses of the basic units in the same fan-shaped arc are the same, and the cylindrical radiuses of the basic units in the fan-shaped arc progressively decrease along clockwise / counterclockwise starting from the fan-shaped structure having the maximum cylindricalradius on the various layers; and a plane wave generated by the feed source is compensated by the microwave lens for the first time, and is subjected to secondary phase compensation of the microwavelens after being reflected by the metal reflection plate to obtain a vortex electromagnetic wave.

The invention relates to a kitchen appliance, and in particular to a soybean milk making machine. The soybean milk making machine comprises a a headpiece and a cup body, wherein a crushing cover is arranged at the front end of the headpiece, and an electric motor is arranged in the headpiece; a crushing blade is arranged at the tail end of a rotating shaft driven by the electric motor; the crushing blade is located within the crushing cover; the bottom of the crushing cover is provided with an opening, and a plurality of spoilers, which extend towards the bottom of the cup body, are arranged on the peripheral wall of the crushing cover, and discharge holes are defined between the adjacent spoilers; the soybean milk making machine is characterized in that in the crushing cover, each spoileris provided with a first rib, a second rib and a spoiler plane for connecting the first rib and the second rib; on a same horizontal section, the first rib and the second rib are not located on a same circle that the center of the rotating shaft is taken as the center of the circle; and a distance R1 from the first rib to the center of the circle is greater than a distance R2 from the second ribto the center of the circle. In comparison with kitchen appliances of the prior art, the soybean milk making machine, which is provided with various crushing modes, can be used for making various drinks, and real dregs avoiding without filtering can be achieved, so that soybean milk, when drunk by consumers, is smooth and delicate in taste.

The beverage container, especially a tin composed of the can, top cover, pull ring and the seal plate connected with the pull ring a plate like drinking section under the seal plate composed of a convertible guide low end and a fixed root for the inner side of the top cover, with the guide flow end connected with the root position through a folded thread. When it opens, the sanitary drinking section springs out from the tin, avoids the direct contact of the consumer with the contaminated can, with reasonable structure, convenient use and safe hygiene.

The invention relates to an insulated shell of a vehicle steering control unit, the insulated shell comprises a rear end wall and an annular side wall protruding forward, an accommodation space is formed between the rear end wall and the side wall, a metallic nickel coating is sprayed on the inner surface of the rear end wall and the side wall, and the complexity of the structure and process is simplified.

The invention provides a spilling water filtration device which comprises a spilling water portion and a filtration portion. A lint filter is arranged on the filtration portion, a filtration cavity is formed between the filtration portion and the lint filter, water inlets are formed in the two sides of the filtration cavity respectively, water deflection baffles which swing in the filtration cavity water inflow direction are arranged in the filtration cavity, and the water deflection baffles deflect water currents which enter the filtration cavity from the water inlets into the lint filter. By means of the spilling water filtration device, the lint collection rate can reach to about 90%. The spilling water filtration device has the advantages that the structure is simple, the production cost is low, the filtration effect is good, and the spilling water filtration device is worth popularizing and applying.

The invention provides a circular waveguide antenna based on a dielectric lens, so as to solve the technical problem of insufficient collection of incident waves in the prior art. The circular waveguide antenna based on the dielectric lens comprises a circular waveguide and a dielectric lens fixed with the receiving end, wherein the upper bottom surface of the dielectric lens is located at one side of the receiving end of the circular waveguide; the dielectric lens comprises a cylindrical medium and multiple circular cylindrical medium layers which are nested sequentially from inside to outside with the cylindrical medium as a center, the lower bottom surface is thus a spherical surface, the upper bottom surface is a planer surface, the side surface has a round table body structure with aninward concave arc surface, the cylindrical medium and the circular cylindrical mediums comprise multiple first cylindrical mediums and first circular cylindrical mediums laminated vertically respectively, and the first cylindrical medium and the first circular cylindrical medium are formed by multiple first basic units and second basic units in a joint mode. Material parameters at different positions can be realized through changing the size of spherical space inside the first basic unit and the second basic unit, electromagnetic waves can be effectively converged, and the manufacturing costis low.