1045results about How to "Reduce material requirements" patented technology

The invention discloses a flexible circuit board convenient for efficient heat dissipation and mainly used in a high-power LED illumination array, belonging to the semiconductor illumination technical field. The flexible circuit board of an LED illumination array is characterized in that: the circuit board is provided with a flexible substrate, a connection circuit, an insulating film-covered layer, a heat-conducting rubber pad and an LED light source; the connection circuit is arranged on the surface of the flexible substrate; the surfaces of the flexible substrate and the connection circuit are covered with the insulating film-covered layer to form a circuit board module; the LED light source is packaged inside the circuit board module in an array mode; the bottom surface of the flexible substrate is adhered to the surface of the heat-conducting rubber pad. Therefore, the entire flexible circuit board module has certain elasticity and flexibility and can adapt to bending, twisting and crimp deformation of certain strength; moreover, the invention can also be arranged on non-flat surfaces not more than a certain curvature such as a cylindrical surface or a spherical surface. The invention has wider application scope, better heat dissipation performance, less production cost, convenient installation and substantially increased production efficiency.

This invention relates to an electromagnetic progressive shaping method for plate moving coils and a device, in which, said device includes a computer control system, an electromagnetic force generation system and a three-shaft digital control shaping system including a plate clamping elevating device, a supporting model frame and an electromagnetic shaping clamping rod, in which, the computer controls the coil to move downward along the contour of a model profile from the top according to the contour data of the model profile and the plate is formed partly relying on the magnetic force of coil till to the bottom of the model and finish the entire process.

The invention relates to a plug-in type balance valve which comprises a valve body, a one-way valve core and a balance valve core, wherein a first oil opening, a second oil opening and a third oil opening are arranged on the valve body; the one-way valve core is arranged at the second oil opening and pushed by a first spring to maintain the trend of axial upward shift; the balance valve core is installed in the valve body and can be matched with a valve opening of the one-way valve core, and a second spring is arranged in a spring cavity of the valve body; the upper part in the balance valve core is provided with an axial passage and a first damping hole; the middle position of the balance valve core is provided with an axial convex shoulder; an annular notch is arranged on the periphery surface of the axial convex shoulder; the inner wall of the valve body is provided with an annular inner shoulder blade; an oil inlet cavity is formed among the annular notch, the inner wall of the valve body and the annular inner shoulder blade; and the third oil opening is communicated with the oil inlet cavity by a second damping hole on the side wall of the valve wall. The balance valve core and the one-way valve core are in an integral structure, and the structure is simple; the balance valve core and the one-way valve core are relatively independent on the relative position relationship, the assembly is convenient, and the requirements on heat treatment and materials of the balance valve core are lowered.

The invention relates to a separation disc on a multi-cell component mixed liquid separating system. The separation disc comprises a durable hard base disc and a disposable soft bag, wherein, a round disc composed of an inner core and a base seat is arranged on the hard base disc, a continuous cavity gap circling the axle of the centre of circle of the hard base disc and having a head part and a tail part which are not sealed is formed between the inner core and the base seat, the space between the outer side wall of the cavity gap and the outer side wall of the hard base disc is transparent, the soft bag adopts a single cavity structure equipped with an inlet pipe and an outlet pipe, and the soft bag can be arranged into the cavity gap; the application method comprises the following steps: the separation disc is positioned in the separating system to form a lamella of a single component through each component in the centrifuged and mixed liquid and according to the difference of the density, and then the lamella is accumulated to be thicker to extract the target component. The separation of the multi-cell component mixed liquid, for example, whole blood, by utilizing the separating system having the separation disc of the invention has the advantages of low cost, high preparation purity and high separating efficiency.

The invention relates to a methane vapor reforming hydrogen production process and devices thereof, which belong to the technical field of petrochemical industry. The process comprises three main steps of adsorption-enhanced methane vapor reforming, separation of a product and an adsorbent, and calcination and regeneration of the adsorbent, wherein the step of the adsorption-enhanced methane vapor reforming can greatly reduce the reaction temperature, slow up the carbon deposition rate of a catalyst, and simultaneously reduce the thermal load of the material of reaction devices. The process uses a gas-solid-solid reactor to perform adsorption-enhanced vapor reforming to produce hydrogen, the adsorbent is carried by reaction gas to pass through a fixed bed reactor formed by catalyst particles, and the reaction devices can operate continuously. The main reaction devices of the process comprise the gas-solid-solid reactor for achieving the adsorption-enhanced methane vapor reforming reaction, and a fluidized bed reactor for achieving the regeneration of the adsorbent. The complete device has a simple and compact design structure.

The invention relates to a selective hydrodesulfurization catalyst. The catalyst comprises, by mass, 3-5% of CoO as an active component, 10-13% of MoO3 as an active component, 2-3% of B203 as a carrier modification aid, 1-2% of P2O5 as a carrier modification aid, 1-1.5% of K2O as a carrier modification aid and 75.5-83% of a composite oxide carrier. The catalyst carriers comprise a zinc aluminate spinel-containing zinc oxide-alumina composite oxide prepared by nonconstant pH alternating titration. The catalyst has good desulfurization selectivity and stability.

The invention relates to a method for preparing Al-Ti alloy or plated Al-Ti alloy by low-temperature electrolytic deposition of ionic liquid, which is characterized by synthesizing an ionic liquid from an organic material and anhydrous aluminium trichloride, adding a right amount of titanium salt to prepare an ionic liquid electrolyte, taking a substrate which is pre-treated as a deposition cathode and preparing Al-Ti alloy or plated Al-Ti alloy by direct current electrolytic deposition, wherein the titanium content within the alloy can be as high as 30%. The method provided by the invention has the advantages that the ionic liquid used therein has wide resource, low price and wide electrochemical window, the electrical conductivity is high, the ionic liquid is friendly to environment and the titanium salt can be effectively dissolved, the temperature of electrolytic deposition and cell voltage can be effectively reduced by using low-temperature electrolytic deposition process of ionic liquid to prepare Al-Ti alloy and the plating thereof, the energy consumption is reduced, the corrosion of the device is greatly reduced, the properties of the deposition layer which is obtained thereby are high and the thickness of the deposition layer and the titanium content of the alloy are easy to be controlled.

The method of comprehensively utilizing phosphate fertilizer by-product includes utilizing ammonium fluoride solution of 3-14% concentration to absorb side product fluorine containing tail gas ammonium fluorosilicate solution; adding iron scrap or iron salt to fluorosilicic acid as one other by-product to eliminate phosphorus; adding liquid ammonia, ammonia water or ammonium bicarbonate; filtering, washing, and eliminating silica precipitate; returning ammonium fluoride solution to phosphate fertilizer absorbing system, concentration and drying to obtain ammonium hydrogen fluoride; reacting solid ammonium hydrogen fluoride and sulfuric acid at high temperature to obtain HF gas, absorbing HF gas to obtain hydrofluoric acid, purification and condensation to obtain anhydrous HF; and mixing the mixture of ammonium sulfate and ammonium bisulfate with ammonium bicarbonate or ammonia in a mixer, curing and crushing to ammonium sulfate fertilizer.

The invention relates to an industrial manufacture method for hydrogenated petroleum resin, which comprises the following steps of: generating hydrogenation reaction on petroleum resin which is obtained by polymerizing cracking C5 and C9 fractions under the proper condition of the existence of hydrogenation catalyst and solvents by adopting the processes of two-section hydrogenation and combination alkaline cleaning neutralization; hydrogenating the unsaturated component in the petroleum resin to reduce double-bond content; hydrogenating a non-ferrous perssad to fade; hydrogenating to remove chlorine retained in the polymerization process; and carrying out alkaline cleaning, water cleaning, stabilizer injection and solvent removal to obtain light or colourless hydrogenated petroleum resin. The method further simplifies the process through the organic combination of unit operation, and the industrial manufacture method for the hydrogenated petroleum resin, which has the advantages of wide adaptability on hydrogenated raw materials, less corrosion on system equipment, high product quality and high production capability is formed.

This invention relates to a stepless meshing control clutch with large power. The clutch, super clutch, control derailleur, line clutch, control strains drive device, which are designed by the principles of meshing stepless displacement and the continuous meshing stepless locking and control, which are suitable to automobile, derailleur, impulse derailleur, automatic derailleur, machine bed and other locations needing large power.

The invention discloses a weaving sleeve pipe type fiber reinforce plastic (FRP) rib and a preparation method of the weaving sleeve pipe type FRP rib. The FRP rib is provided with protrusions and thread structures, wherein the protrusions are distributed on the surface of the FRP rib in a pattern mode and the thread structures are horizontal. The FRP rib comprises reinforced fibers and dipping glue solution. All or part of the reinforced fibers are woven into fiber sleeve pipes. The matrix of the dipping glue solution is heat convertible resin or unsaturated polyester resin. The FRP rib further comprises curing agents, initiating agents and packing. The preparation step of the FRP rib comprises delivering yarn, placing the sleeve pipes, dipping glue, packing fibers, performing, intertwine-sizing, dragging, solidification forming and cutting. The weaving sleeve pipe type FRP rib is excellent in longitudinal tensile strength, good in surrounding strength, capable of adapting to new demands for the FRP rib in existing application, low in preparation cost, capable of being manufactured after slight improvement on the base of existing equipment and easy to popularize. Application range of the FRP rib is greatly widened.

The invention relates to a method for preparing a monodisperse flaky magnesium hydroxide flame retardant. The method comprises the following steps of: preparing a soluble magnesium salt into a solution with magnesium ion concentration of more than 0.5mol/l; adding sodium hydroxide with hydroxyl ion concentration of more than 0.5mol/l or an ammonia aqueous solution at a temperature of 25-60 DEG C, a stirring rate of 1,500-4,000rmp and a constant flow rate under a constant pressure for precipitation reaction; reacting until the molar ratio of magnesium ions to hydroxyl ions is 1 to 2; transferring the reacted slurry into a high pressure reaction kettle, wherein the hydro-thermal reaction temperature is 100-200 DEG C, the reaction time is 1-6 hours and the stirring rate is 300-700 rpm; and after filtering and washing a product, drying the product at the temperature of 100-160 DEG C for 4-6 hours to obtain the magnesium hydroxide flame retardant which has a shape of hexagonal sheet or circular sheet, a grain size from 200nm to 500 nm and excellent dispersibility. By using the method provided by the invention, the problems that nano-sized magnesium hydroxide is subjected to hydro-thermal reaction only in a strong alkali system at a higher temperature and the requirement on equipment material is higher are solved.

A one-piece molded end cap is provided for use with a container tarping system. The end cap is in the form of an aerodynamically shaped shell and includes a trough and ridge configuration at the rear edge to provide a sealing surface for the side edge of the flexible cover of the tarping system. A deflection barrier is formed at the underside of the end cap shell and is configured to deflect material loaded into the container away from the end cap. In a further embodiment, the end cap can include a tensioning mechanism integral with a front edge of the end cap. The tensioning mechanism includes an elongated body having a bore within which a tensioning element is disposed. The tensioning element applies tension to a drive mechanism of the tarping system through a cable.

The invention discloses an apparatus and a process for destructive distillation and cracking of biomass, belonging to the technical field of industrial processing apparatus structures and processes for mechanical products. The apparatus comprises an input part, a reaction vessel part, a control part and a processing output part. Self-balancing of energy in the process of production is realized through utilization of the destructive distillation and cracking process for biological garbage. According to the invention, the destructive distillation and cracking process for biomass has the advantages of short process flow, little equipment and low energy consumption, and the apparatus has the advantages of safe and convenient operation, easy maintenance and repair, etc.

The invention discloses a mothproof fabric and a preparation method thereof. The preparation method of the mothproof fabric comprises the following steps: weaving natural fibers into an inner layer, synthetic multifilament yarn into a surface course, and polypropylene fiber filament or polyethylene fiber filament fabric into a lapping layer, wherein the inner layer and the surface course are in grid shape; dying in dying liquid at a temperature of 60-105 DEG C for 10-120 minutes; washing with water; drying; and forming, wherein the dying liquid is a missible-oil aqueous solution, missible oil is formed by mixing pyrethroid and ether solvent in a mass ratio of 1:5 to 1:20; the mass ratio of the fabric to the dying liquid is 1:7 to 1:20; and the amount of the missible oil is 5-10% of the fabric weight. The method has short production flows, convenient operation, small consumption of a pyrethroid pesticide and low requirements for fiber material by adopting dying and the additional pyrethroid pesticide; and the fabric prepared by the method has favorable permeability, strong capability of resisting insect invasion and long anti-mosquito effect.

Disclosed is a polyether polyamide elastomer particularly excellent in transparency while retaining properties such as dynamic physical properties, stiffness and bending-fatigue resistance. The polyether polyamide elastomer is produced by polymerizing (A) a polyamide-forming monomer selected from an aminocarboxylic acid compound (A1) represented by the following formula (1) and a lactam compound (A2) represented by the following formula (2), (B) a diamine compound comprising a triblock polyetherdiamine compound (B1) represented by the following formula (3) and at least one diamine compound (B2) selected from a branched saturated diamine having 6 to 22 carbon atoms, a branched alicyclic diamine having 6 to 16 carbon atoms and norbornanediamine, and (C) a dicarboxylic acid compound represented by the following formula (4),

H₂N—R¹—COOH  (1)

• • wherein R¹ represents a linking group having a hydrocarbon chain,

HOOC—(R³)_m—COOH  (4)

• • wherein R³ represents a linking group having a hydrocarbon chain, and m represents 0 or 1.

This invention discloses oxidation reactor and method for preparing TiO2 by chlorination. The reactor comprises a combustion chamber, a shell of reacting zone, and a shell of developing zone. A TiCl4 inflow pipe is inserted vertically into the shell of the reacting zone, and is bent 90 degrees to form an L-shaped pipe towards the shell of the developing zone. A nozzle is fixed on the end of the L-shaped pipe, and on the same axis of the shells. A cool air entrance is at the connecting part of the shells. The right side of the shell of the developing zone is connected with the flow exit. The tangential and radial TiCl4 cyclone jets can be formed at the axes to mix TiCl4 gas and hot oxygen and react fast and uniformly. The mixing effect can be ameliorated by controlling the relative momentum of the TiCl4 jet. Cool air is applied to blow the nozzle to prevent blockage. The cool air introduced from the connecting part of the shells is applied to control the rection, reduce and scar formation on the reactor wall, and adjust the particle size distribution.

The invention belongs to the field of microalgae culture, and particularly relates to an inserting-plate type microalgae semi-dry solid adherent culture device. The inserting-plate type microalgae semi-dry solid adherent culture device is characterized by comprising a supporting truss, culture plates, liquid distributing pipes, liquid collecting tanks and a liquid storage bottle, wherein the supporting truss is provided with at least one culture plate, and one liquid distributing pipe is arranged above each culture plate; the liquid collecting tank arranged on the supporting truss is arranged under each culture plate; all the liquid collecting tanks are communicated with the liquid storage bottle by the main liquid pipe; the bottom of the liquid storage bottle is respectively provided with a circulating pump and a carbon-supplementing gas distributing pipe communicated with a carbon dioxide source, and the circulating pump is communicated with a liquid distributing pipe by a pipeline; and each culture plate is provided with a picking scraper. The inserting-plate type microalgae semi-dry solid adherent culture device has the advantages that the yield in unit occupied area is effectively increased, the culture period is shortened, the water consumption for culture is greatly reduced, the cost and the operating cost of the culture device are reduced and the industrial culture on large scale is easily realized.

The invention relates to a contacting unit for a card-type carrier element in electronic component groups with a housing, the contact unit including a bonding pad on one end face, a slot-like slide-in port that joins on the end face opposite the bonding pad, into which the card-type carrier element, especially a chip card in accordance with ISO 7816, can be inserted, and a printed circuit board, arranged in the housing parallel to the slide-in port and electrically connected to the bonding pad, wherein said printed circuit board is equipped on one surface with contact elements for contacting the card-type carrier element, characterized in that said unit is designed in accordance with the PCMCIA Express Card Standard.

The invention discloses a method and device for double-stage expansion refrigeration high methane gas liquefaction and belongs to the field of high methane gas separation and liquefaction. According to the purposes of the method and device for double-stage expansion refrigeration high methane gas liquefaction, the problems of difficult heavy hydrocarbon separation, cumbersome operation, high equipment investment, large methane loss and high energy consumption in an existing production method for liquefied natural gas are solved. The method comprises the steps of high methane gas liquefaction and circulation refrigeration. After high methane feed gas and preheating gas are mixed, the mixture is subjected to heat exchanger cooling, throttling depressurization and gas-liquid separation, liquefied high methane gas and low-temperature flashing steam are obtained; and the liquefied high methane gas is collected as a product, and the low-temperature flashing steam is subjected to open type circulation refrigeration or closed circulation. The method and device have the advantages of being simple in procedure, low in energy consumption, flexible in operation, low in equipment investment, small in methane loss, good in nitrogen separation effect, easy in heavy hydrocarbon removal and the like.

The invention relates to a seawater desalination device and a method, and relates to the seawater device and its method by combining an electrolytic technology, a capacitance adsorption deionization technology and a low pressure reverse osmosis technology. The device comprises an electrolytic purifying system, a capacitance adsorption deionization system and a low pressure reverse osmosis system; the electrolytic purifying system comprises a stop valve, a water supply pump, an electrolytic machine, a deposition pot and a microfiltration apparatus; the capacitance adsorption deionization system comprises the stop valve, an elevator pump, a cartridge filter, the water supply pump, a capacitance adsorption deionization apparatus, a primary fresh water storage tank and a concentrated water booster pump; the low pressure reverse osmosis system comprises the stop valve, the water supply pump, the cartridge filter, a high pressure pump, a low pressure reverse osmosis membrane component and a fresh water storage tank. The method comprises the following steps: electrolyzing, performing capacitance adsorption deionization and primarily desalinating, finally performing low pressure reverse osmosis desalination. The method has the advantages of short process flow, small investment and less environmental pollution, the reverse osmosis system material has the advantages of low requirement and low cost, and solves the problem of nationalization, and the seawater desalination device has the advantages of high efficiency, low energy consumption, low production cost, high integrated level of the device, small volume, easy operation and the like.

The invention provides graphene, graphene hydrosol, and graphene powder obtained by drying the graphene hydrosol, wherein the edge of the graphene comprises active groups, and the active groups comprise amino groups. The preparation method of the graphene hydrosol comprises the following steps: (1), performing electrochemical intercalation and exfoliation on graphene to obtain graphene dispersed in electrolyte; the electrolyte after electrochemical intercalation and exfoliation contains both inorganic salt and amino acid; after intercalation, removing free inorganic salt and amino acid compounds from the solution to obtain the graphene hydrosol. According to the graphene, graphene colloidal sol, graphene powder and the preparation method and the preparation device, provided by the invention, the graphene hydrosol is provided, the use of a great deal of an organic solvent in the graphene hydrosol based on the organic solvent is reduced, the stability is good, the preparation method is simple, the operation is easy, the equipment and material requirements are low, the environmental friendliness is achieved, and the industrialization is facilitated.

The invention discloses a preparing method of SiCp/Al composite with complete shape and high analytic in metal base composite material researching domain, which comprises the following steps: allocating pre-mixing liquid with monomer, cross linker and disperser; adding into SiC powder; balling; getting stable suspension with SiC volume content at 50-70%; adding into trigger and activator; stirring evenly; injecting into unapertured mold; solidifying and shaping in incubator with temperature at 50-70 deg.c; getting green compact; drying; discharging glue; presintering; getting SiC bone; placing Al alloy of 4-8% Mg, 6-12% Si on the adaptive position of bone; putting into heater; heating-up at 900-1200 deg.c under the protection of inert gas; inflating high pure nitrogen; keeping the temperature at 1-6 h; cooling; getting the product. This invention possesses the merit of cheap cost.

The invention belongs to the field of microalgae cultivation, and particularly relates to a microalgae half-dry solid state adherent cultivation device for alternate illumination of bright and dark light. The microalgae half-dry solid state adherent cultivation device comprises a bracket system, an adherent cultivation unit, a speed regulating motor, a liquid supplement pipe, a liquid collection tank and a peripheral protection cover, wherein the adherent cultivation unit is arranged on the bracket system and is connected with the speed regulating motor; the liquid supplement pipe is arranged above the adherent cultivation unit, and the liquid collection tank is arranged below the adherent cultivation unit; the liquid collection tank is internally provided with a liquid circulating pump, a liquid supplement device and a carbon supplement device; the liquid circulating pump is connected with the liquid supplement pipe through a pipeline; and the peripheral protection cover is arranged on the periphery of the bracket system and the adherent cultivation unit; and the top surface of the protection cover is made of a light-passing material. The device utilizes the principle of bright and dark flashing light to dilute the bright light and improve the utilization efficiency of luminous energy, thereby improving the yield of microalgae biomass.

An electric double layer capacitor includes polarizable electrodes immersed in an organic electrolyte, wherein the electric double layer capacitor exhibits a high energy density. Also disclosed is a method of coupling an electric double layer capacitor to photovoltaic and variable energy generation systems.

A frame piece for a rack of a switching cabinet, which has a profile outside and a profile inside, the transitions of which lie at a distance from an outside corner edge of the rack and form a free space with the profile outside to the outside corner edge, for swinging a cabinet door and introducing edges of abutting paneling elements. A frame piece with many possibilities of variation with respect to fastening planes, fastening directions and stability is created according to this invention, because the frame piece is designed as having mirror image symmetry in cross-section with respect to an axis of symmetry which is at an angle of inclination to the rack diagonal. On both sides of the rack diagonal with the profile inside and profile outside, there are at least two profile sections that are at an angle with respect to one another, at least a part of which has fastening seats.