703results about How to "Suitable for mass production applications" patented technology

The invention discloses a flight carrier system of an unmanned aerial vehicle.The flight carrier system comprises a lifting mechanism and a grabbing mechanism.The lifting mechanism comprises a fixing carrier plate, a lifting carrier plate and a lifting lead screw.A driven tooth is arranged at one end of the lifting lead screw.A driving tooth is arranged on the lifting carrier plate.The driving tooth drives the driven tooth to rotate to control the lifting lead screw to be lifted.The lifting lead screw is lifted to drive the lifting carrier plate to move.The grabbing mechanism comprises a base, a movable arm and a traction device controlling the movable arm.The base is provided with a pair of movable arms, a rotating handle and a traction rod.The rotating handle rotates forward and reversely to pull the traction rod to extend and contract to drive the two movable arms.The grabbing mechanism is provided with a bottom carrying mechanism.Compared with the prior art, the flight carrier system of the unmanned aerial vehicle has the advantages that by means of longitudinal moving of the lifting mechanism and clamping of goods through the grabbing mechanism, the unmanned aerial vehicle can transport the goods by means of remote control, labor force is saved, and the working efficiency is improved.

The invention discloses nylon 6 with high performance and low melting-point and preparation method thereof. The nylon 6 is mainly prepared from common nylon 6, LiCl, epoxy resin and other auxiliaries. In comparison with the existing technology, the invention better lowers the melting point of the nylon 6; moreover, the epoxy resin is added to perform mutual exchange reaction with the nylon 6 such that nylon 6 with high strength, high impact, high resistance and low melting-point can be obtained without adding glass fiber. The comprehensive performance of the nylon is largely raised. The preparation technology provided by the invention is simple, and is suitable to be applied in mass production.

The invention discloses a knuckle reconfigurable robot unit module, comprising an outer frame, an inner frame, a rotating base assembly, an active connection mechanism, three passive connection mechanisms, and an inner frame and outer frame connecting component, wherein the inner frame is connected with the outer frame through the connecting component; the rotation of the inner frame relative to the outer frame is achieved through a stepper motor; the rotating base assembly comprises a rotating base substrate, a gear bank, a shaft sleeve, a bearing and a stepper motor; the rotating base assembly is arranged on the outer frame as a passive connection surface, and can freely rotate around a center shaft, so as to achieve steering motion of a robot; the active connection mechanism comprises four knuckles, a gear transmission mechanism, a direct current motor and a fixing frame, and is arranged on the inner frame; the direct current motor drives the knuckle to rotate through the gear transmission mechanism; one knuckle is opposite to the other knuckles in rotating direction, so that alignment and connection of active and passive surfaces can be achieved. The combined deformation form of the module is enriched by the design method of combined connection surfaces; the service ability of a modular self-reconfigurable robot is improved.

The invention relates to a method for preparing a porous carbon ball composite absorbing material loaded with a magnetic metal element. The method includes the steps of 1] preparing a precursor solution containing magnetic metal ion salt; 2] placing porous carbon balls into the precursor solution for stirring and dipping; 3] filtering, then washing and drying the porous carbon balls; 4] calcining the dried porous carbon balls in an inert atmosphere; and 5] cooling to room temperature in the inert atmosphere and then obtaining a porous carbon ball composite absorbing material loaded with a magnetic metal element. The invention makes use of the high specific surface area and the strong adsorption of the porous carbon balls, introduces the precursor solution containing magnetic metal ion salt including cobalt salt, nickel salt and the like into channels of the carbon balls by capillary action, combines with hydrophilic oxygen-containing functional groups, and obtains the porous carbon ball composite absorbing material loaded with the magnetic metal element like cobalt or nickel through drying and sintering in the inert atmosphere. The whole preparation process is simple in technique, convenient to operate, and less demanding on production equipment.

The invention relates to a preparation method of an iron/iron carbide-loaded porous carbon sphere composite wave-absorbing material. The method comprises the following steps: 1) preparing an iron-salt-containing precursor solution; 2) stirring porous carbon spheres in the precursor solution for impregnation; 3) filtering out the porous carbon spheres, washing and drying; 4) calcining the dried porous carbon spheres in an inert atmosphere; and 5) cooling to room temperature in an inert atmosphere to obtain the iron/iron carbide-loaded porous carbon sphere composite wave-absorbing material. The iron salt precursor solution is introduced to the inside of the ducts of the carbon spheres by using the high specific area and strong adsorptivity of the porous carbon spheres through the capillary actions and is combined with the hydrophilic oxygen-containing functional group; and finally, the drying and sintering treatment in the inert atmosphere are performed to obtain the simple substance iron/iron carbide-loaded porous carbon sphere composite material. The whole preparation process is simple in technique and convenient to operate, and has low requirements for the production equipment.

The invention relates to a porous perovskite film, carbon slurry and a carbon electrode based solar cell. The chemical formula of the perovskite film is ABX3, wherein A is at least one monovalent cation, and is preferably at least one or a mixed ion of CH3NH3<+>, NH2-CH=NH2<+>, Cs<+>, Li<+>, C4H9NH3<+>, CH6N3<+>, Na<+> and K<+>, B is at least one of PB<2+>, Sn<2+>, Ge<2+>, Co<2+>, Fe<2+>, Mn<2+>,Cu<2+> and Ni<2+>, and X is at least one of Cl<->, Br<->, I<->, SCN<-> and BF4<->. The perovskite film is of a porous structure.

The invention discloses lead storage battery positive pole material and a production method thereof, ingredients of the material and percent contents of the ingredients by weight are as follows: 0.2-2% of carbon nanometer tube, 0.2-2% of polyacrylonitrile short fiber, 60-90% of PbO2, the rest is lead powder. The carbon nanometer tube experiencing mixed-acid ultrasonic treatment is used as an additive for the lead storage battery positive pole, which can not only resist corrosion from the execrable electrochemical environment in the lead storage battery, increase specific surface area of the positive pole active substances, promote charging and discharging abilities of an electrode, improve the circulation performance, boost chemical efficiency, but advance the utilization rate of the active substances and discharging capacity of the lead storage battery. In case of 0.5c-10c of current, the utilization rate of the active substances in simulation batteries can be enhanced by 8%-15%. The invention has simple process and low cost as well as adapt to large-scale production and application.

The invention discloses a compound traditional Chinese medicinal composition for cows, and a preparation method and an application thereof, and belongs to the technical filed of traditional Chinese medicines for animals. The compound traditional Chinese medicinal composition mainly comprises, by weight, 10-20 parts of Chinese angelica, 10-20 parts of Ligusticum wallichii, 15-20 parts of Ricepaperplant Pith, 10-20 parts of Vaccaria segetalis, 5-10 parts of Radix Astragali, 5-10 parts of Spina Gleditsiae, 5-10 parts of Radix Codonopsis, 1-5 parts of Radix Rhapontici, 1-5 parts of Fructus Liquidambaris, 5-10 parts of licorice root, 10-20 parts of Rhizoma Atractylodis Macrocephalae and 5-10 parts of Herba Leonuri. The composition adopting the above 12 pure natural Chinese herbal medicines has the characteristic of no medicine resistance, small toxic side effects, difficult generation of harmful residues in milk products, and can effectively improve the milk yield of the cows, substantially improve the quality of the cows and the healthy level of the cows and prevent the mastitis of the cows; and compared with fructo-oligosaccharide compatibility compositions, the compound traditional Chinese medicinal composition disclosed in the invention has the advantages of improvement of the immunity of bodies, improvement of the gastrointestinal tract environment of the bodies, adjustment of the gastrointestinal flora balance, and promotion of the digestion and absorption of nutritional substances.

The invention relates to a preparation method of a heavy metal ion porous magnetic ceramsite adsorbent, and belongs to the field of preparation of adsorbents. The preparation method is characterized by comprising the following steps of processing coal gangue into raw powder; synthesizing into ceramic raw balls by an Eirich strong mixing machine; screening the raw balls, and sintering, so as to obtain a ceramic substrate with certain particle size range; performing acidifying and hydrophilic treatment on the ceramic substrate, placing into a precursor solution which is dissolved with metal ions of Fe<3+> or Co<2+> or Ni2; introducing the precursor solution by a liquid phase synthesizing method; finally, performing thermal reduction, so as to obtain the porous magnetic ceramsite adsorbent which is loaded with metal element of Fe (iron) or Co (cobalt) or Ni (nickel). The preparation method has the advantages that the ceramsite has stronger adsorbing characteristics on the heavy metal ions, the magnetic separation is easy, the recycling and reutilizing effects are realized, and the ceramsite can be widely applied to treatment of industrial wastewater; by utilizing the coal gangue, the utilization of solid wastes is realized; the cost is low, and the effect of treating wastes by wastes is realized.

The invention discloses a preparation method of a lithium titanate/carbon nano tube composite cathode material and belongs to the technical field of battery materials. A carbon nano tube grows on the surface of lithium titanate by a chemical vapour deposition method, and has the characteristics of uniform dispersion, high binding force and the like compared with a carbon nano tube directly doped in lithium titanate, the growing carbon nano tube can form a network structure on the surface of lithium titanate, and an important effect is exerted on improving structural stability of the material under the condition of high-rate discharge of a battery. The contact probability of the lithium ion battery with lithium titanate is increased and the internal resistance and polarization are reduced by using high conductivity of the carbon nano tube and the network structure formed by the carbon nano tube, the liquid absorption and keeping ability of the cathode material can be improved due to larger specific surface area of the carbon nano tube, and the high-rate discharge ability and recyclability of the battery are improved.

The invention provides a preparation purification method of germanium tetrachloride for optical fibers, which adopts germanium concentrate as a raw material; hydrochloric acid, sulfuric acid, and ferric trichloride are added into a chlorination reaction vessel according to a certain proportion for reaction to prepare crude germanium tetrachloride; the crude germanium tetrachloride is fully mixed with hydrochloric acid and manganese dioxide according to a certain proportion in a repeated distillation reaction vessel for distillation and purification to obtain preliminarily purified germanium tetrachloride; the germanium tetrachloride after repeated distillation purification is processed in a quartz rectifying tower in inert atmosphere by controlling a tower bottom temperature to be 75-95 DEG C, a tower column temperature to be 30-95 DEG C, and a reflux ratio of 4:1-14:1, so as to obtain high-purity germanium tetrachloride. The high-purity germanium tetrachloride prepared through three procedures of chlorination distillation, repeated distillation, and rectification purification, has a content of transition metal impurities of less than 3 ppb, a content of hydrogen-containing impurities of less than 1 ppm, and meets the requirements for perform rod germanium tetrachloride for optical fibers.

The invention discloses a preparation method of a silicon micro/nanometer line array with a controllable dimension. The preparation method is characterized in that a silicon chip is used as a substrate, a sample A is obtained through taking out the silicon chip to be dried after the surface of the silicon chip is cleaned, photoresist is coated on the surface of the sample A in a spiral way, and a photoresist layer is baked; a contact type mask is prepared according to the pattern types of the silicon micro/nanometer line array, the mask is utilized for realizing the exposure on the photoresist layer to obtain a sample B, the sample B is developed in developing liquid for 4 to 6 minutes, and exposed photoresist is washed away to obtain a sample C; a gold film with the thickness being 20 to 50 nanometers is coated on the surface of the sample C to obtain a sample D; the sample D is placed into acetone to remove the photoresist and the gold on the sample, and the silicon chip in contact with the gold, i.e. a sample E is obtained; and the sample E is soaked into etching liquid to carry out gold catalysis chemical etching, and the silicon micro/nanometer line array is obtained after the etching completion. The preparation method provided by the invention can be used for obtaining the silicon micro/nanometer line array with the controllable diameter and length and the uniform crystal orientation so that the silicon micro/nanometer line array can realize the practical application to devices.

The invention provides a polyester composite material for nano injection molding. The material is prepared from the following components in percentage by weight: 37.5-81% of polyester resin, 3-20% of polyolefin, 0.05-0.5% of an antioxidant, 0.1-2.0% of a release agent and 10-40% of glass fibers, wherein the polyester resin contains PBT resin which accounts for 30-70wt% of the polyester composite material for nano injection molding. The invention further provides a preparation method of the polyester composite material for nano injection molding. According to the polyester composite material for nano injection molding, in a nano injection molding process, the bonding strength of the resin and metals can be hugely improved. The preparation method provided by the invention is simple and feasible and suitable for large-scaled production and application.

The invention relates to medical polymers field, especially a temperature sensitive and biodegradable triblock copolymer with gel-sol transformation characteristics and preparation method thereof and usage. The triblock copolymer is PEG-PCL-PEG copolymer, the aqueous solution thereof performs Gel-Sol phase transformation along with the temperature rise and the phase transformation temperature is 40-55 degree. The PEG-PCL-PEG copolymer has a variety of excellent features to provide a new choice in field which is in need of temperature sensitive material.

The invention relates to the field of medicinal macromolecular materials, in particular to the application of a tri-block copolymer in the preparation of a medical anti-blocking material, aiming to provide a new choice for using the medical anti-blocking material in the field. A technical scheme of the invention is to provide the application of the polycaprolactone-polyethyleneglycol- polycaprolactone (PCL-PEG-PCL) tri-block copolymer in the preparation of the medical anti-blocking material, wherein the PCL-PEG-PCL copolymer has a molecular weight ranging from 1,500 to 8,000, the ratio of themolecular weight of the PEG chain segment to that of the PCL chain segment ranges from 0.2 to 2.5. The copolymer can be dissolved in water to form a solution and can form when a certain concentrationis achieved. Experiments show that the hydrogel of the PCL-PEG-PCL block copolymer can effectively prevent post-operation adhesion, thereby the invention provides a new choice for this field.

The invention relates to a preparation method for lead paste of a negative plate of a lead-acid battery and the negative plate. The preparation method for the lead paste comprises the steps of preparation of mixed slurry of carbon powder, barium sulfate, organic additive, binder and lead powder, spray drying and mixing to obtain the paste. The prepared lead paste is coated on a negative plate gate and is then cured and dried to obtain the negative plate of the battery. Polytetrafluoroethylene is adopted as the binder, the mixed slurry is subject to the spray drying through a high-speed centrifugal spray drier, and the temperature of an air inlet is controlled to be 180-250 DEG C; and mixed solution of dispersed fibers and deionized water is added into the sprayed powder to prepare the paste. The uniformity of mixing for the negative material can be improved effectively, the contact area of the carbon powder and the lead powder can be enlarged, the conductivity of the negative plate can be improved, and the charge acceptance capacity of the battery can be improved. Meanwhile, the sulfate process of the negative plate can be effectively mitigated, the rate of utilization of active substances can be increased, and the service life of the battery can be prolonged.

The invention relates to a method for rolling fine-grained magnesium alloy with superplastic deformability. The method comprises the steps of low-rolling-reduction transverse rolling, high-rolling-reduction longitudinal asynchronous rolling, longitudinal reversed-direction rolling, low-temperature longitudinal rolling and annealing, and comprises the specific steps of heating a commercial magnesium alloy blank in a heating box, standing to preserve heat for a period of time after heating to a preset temperature, firstly pushing the magnesium alloy blank to an entrance of a rolling roller along the transverse direction, carrying out transverse rolling firstly, then, carrying out high-rolling-reduction longitudinal asynchronous rolling, then, carrying out longitudinal 180-degree-reversed rolling, then, carrying out low-temperature longitudinal rolling, and finally, carrying out low-temperature long-time annealing treatment or high-temperature short-time annealing treatment. According to the method, cracking during the rolling of the magnesium alloy can be reduced, the crystal grain of the magnesium alloy is refined, the texture is weakened, and the high-temperature plasticity of the magnesium alloy is improved; moreover, the process is simple and easy to operate, large-sized wide-width sheet materials can be prepared, and the formability of the magnesium alloy is improved remarkably, so that the method is applicable to the mass production of superplastic magnesium alloy and is prone to popularization and application.

The invention provides a glass clarifying agent. The glass clarifying agent is prepared from components of raw materials in parts by weight as follows: 5-10 parts of cerium oxide, 10-25 parts of fluorite, 10-25 parts of lithium feldspar, 5-10 parts of lepidolite, 5-20 parts of barium sulfate, 5-15 parts of calcium sulfate and 5-15 parts of barium carbonate. The glass clarifying agent has excellent clarifying effect, can realize the clarifying effect the same as that of arsenic trioxide, can also remarkably reduce the use quantity of production raw materials introduced through matching with the clarifying agent and reduces the production cost of glass, and the comprehensive effect is better than that of arsenic trioxide; besides, the problem of glass defects caused by high probability of microbubbles on a glass panel with the adoption of a cerium oxide and sulfate composited clarifying agent is solved by means of the glass clarifying agent. The preparation method of the glass clarifying agent is simple, realizes safe production, prevents environmental pollution and is applicable to large-scale production.

The invention discloses a MXene aerogel lithium negative electrode current collector capable of rapidly charging and discharging at a high rate and a preparation method thereof, and a MXene aerogel current collector is obtained by compounding two-dimensional transition metal titanium carbide and reduced graphene oxide (rGO). The MXene aerogel current collector is a nanoporous structure and has a pro-lithium functional group. The MXene aerogel lithium negative electrode current collector is applied to a lithium-lithium iron phosphate full battery, and the high-rate rapid charging and discharging of a battery is achieved.

The invention relates to a silicon-carrying microsphere, a copper net for separating oil from water and a preparation method thereof and belongs to the technical field of a new material for modifying/absorbing a material surface. The preparation method for the silicon-carrying microsphere comprises the following steps: preparing a polymeric microsphere, enveloping the polymeric microsphere and modifying the silicon-carrying microsphere. The preparation method for the silicon-carrying microsphere is simple in process and the prepared silicon-carrying microsphere has uniform granularity and excellent lyophobic property and is beneficial to dispersion. The preparation method for the copper net for separating oil from water comprises the following steps: spraying a double-component adhesive onto the copper net, thereby acquiring a first copper net, and then spraying the prepared silicon-carrying microsphere onto the first copper net, thereby acquiring the copper net for separating oil from water. The copper net prepared according to the method has a better oil-water separating effect and can be conveniently recycled and reused.

The invention provides a filter tip pre-filled with large-particle materials. The filter tip is composed of a filter element, the large-particle materials, forming paper or groove-shaped cellulose paper. The forming paper wraps the filter element, and the large-particle materials are pre-buried in the filter element. The particle diameter of the large-particle materials ranges from 1.0 to 4.0 mm, and the distance between the buried position and the sucking end of the filter tip is greater than 6.0 mm. A flavour ingredient is contained in the large-particle material, or an absorbent material ingredient is contained in the large-particle materials. A layer of surface film may be arranged on the outer surface of the large-particle materials, and the surface film is broken due to the temperature of smoke in the case that the filter tip is sucked, so that a flavour is easy to emit, or an adsorption effect is easy to act. A filter stick pre-filled with large-particle materials can be formed in the case that a plurality of filter tips pre-filled with large-particle materials are integrally connected. The filter tip provided by the invention can add the flavour of a cigarette, or improve the adsorption capacity for smoke. The internal large-particle materials cannot be sucked in a mouth by mistake, and moreover, the flavour and the adsorption capacity of the large-particle materials are greatly preserved during production and storage, and can exert the corresponding effects during sucking.