3345results about How to "Avoid gathering" patented technology

The invention provides a rare earth-containing Al-Zn-Mg-Si alloy with high aluminum content for hot-dipping steel products, comprising the following compositions by weight percent as follows; Al: 50-75%, Mg: 1-5%, Si: 0.5-2.5%, the addition of 0.002-0.1% of Ti, 0.001-0.045% of B and 0.05-1% of rare earth (La or Ce), and the balance of Zn and unavoidable impurities. The invention utilizes corrosion resistance of Mg2Si and grain-refining effect of the rare earth, the Ti and the Bi elements to improve quality of plating solution and obtain a high aluminum content aluminum-zinc alloy cladding with ,a bright and smooth surface and great corrosion resistance property. In addition, the content of aluminum in the alloy is up to 50-75%, thereby lowering production cost.

The present invention relates to an evaporator for an air conditioner of a vehicle, and the major object of the present invention is to provide the evaporator which is capable of decreasing the whole dimension of an evaporator and enhancing a heat exchange performance. To achieve the above objects, an evaporator includes an upper and lower header units comprising a tank member, a partition member, a header plate, an intermediate baffle, a finishing baffle; and a plurality of tubes comprising a front tube portion, a rear tube portion, a connection tube portion; and a wrinkle fin.

The invention relates to a preparation method of a star polycarboxylic acid high-performance water reducing agent. Polybasic alcohol and (methyl) acrylic acid used as main raw materials for esterification are esterified and polymerized to prepare the star polycarboxylic acid high-performance water reducing agent material: the (methyl) acrylic acid and polybasic alcohol used as reactants are esterified under the action of a catalyst to firstly prepare a star polymerizable active terminal, and free-radical polymerization reaction is carried out with unsaturated polyethenoxy ether, molecular weight regulator and unsaturated carboxylic acid monomer under the action of an initiator to prepare the star polycarboxylic acid high-performance water reducing agent. The invention is easy to control, and has the advantages of high polymerization degree, low cost and no pollution; the esterification reaction is carried out form an active core, and the free-radical polymerization is carried out to generate the chain arm, thereby implementing the polycarboxylic acid high-performance water reducing agent in a star molecular structure; and under the condition of common doping amount and low doping amount, the star polycarboxylic acid high-performance water reducing agent has better cement paste flowability and holding capacity than the traditional linear and comb polycarboxylic acid water reducing agents, and has favorable cement adaptability and concrete application performance.

The invention discloses a cream which contains 20-45% of fat, 1-3% of protein, 0.1-0.55% of stabilizer, 0.05-0.35% of emulsifier, 0.005-0.15% of buffer salt and the balance water, and the percent is the weight percent of each component in the total weight of the cream. The invention further provides a making method of the cream. The making method can overcome the defects of short shelf life, strict preservation conditions and further limitation of the sales regions of the cream prepared by the conventional method, and the invention provides the cream and the making method thereof by improvingthe formula and the process of the cream. The cream produced and prepared by the method can be stored at room temperature, the use is convenient and fast, and the shelf life is long, thereby being suitable for long-distance transportation and being conductive to construction of a national sales network; meanwhile, the cream product has the advantages of uniformity, stability, no water separation,good whipability and thermal stability, thereby being applicable to making egg tarts, candies, cakes or cream soup.

The invention provides a preparation method of a monodisperse porous polymer microsphere. After a second stage of swelling of two-stage seed swelling polymerization, remnant monomer separation technology is adopted to avoid the aggregation of the microspheres and the generation of secondary particles, thereby greatly improving the stability of preparing monodisperse porous polymer microsphere through the two-stage seed swelling polymerization. The two-stage seed swelling polymerization can stably prepare the following monodisperse porous polymer microspheres: P(St-co-DVB) (PSD for short) and P(St-co-DVB-co-MMA) (PSDA for short), wherein, St is referred to as styrene, DVB as divinybenzene, MMA as methyl methacrylate, AN as acrylonitrile and co as copolymerization. The monodisperse porous polymer microsphere PSDA prepared by the method can be seen in an attached drawing.

A toner container (132Y) detachably installed in the toner container storage part of the image forming device body of an image forming device. The toner container comprises a container body (133Y) storing a toner therein, a held part (134Y) fitted to the longitudinal end part of the container body (133Y), having a toner discharge port (B) for discharging the toner stored in the container body (133Y), and held on the toner container storage part, and a still standing suppressing means fitted to the held part (134Y) and suppressing the still standing of the toner container on a still standing surface in the state of the held part (134Y) positioned in the vertical lower direction to the container body (133Y).

The invention provides a Cs-supported silica-based catalyst. One of SBA-15, SiO2 or silicon dioxide prepared by a silica sol method is used as a carrier, the support is selected from one of Cs salt and a mixture of Cs and modified elements, the catalyst is prepared by a dipping method, the Cs content is 0.1wt%-10wt%, and the content of the modified elements is 0-2wt%. Meanwhile, the invention further provides a preparation method of the Cs-supported silica-based catalyst and application of the Cs-supported silica-based catalyst to the process of preparing methyl acrylate by catalyzing condensation reaction of methyl acetate and a methanal gas phase. The prepared catalyst is capable of realizing the aldol condensation of the methyl acetate and the methanal gas phase under proper conditions so as to prepare the methyl acrylate, wherein the activity of the Cs/SBA-15 catalyst is higher than that of other Cs-supported silica-based catalysts, and the selectivity on the methyl acrylate is good.

The present invention relates to the preparation process of nano silver colloidal water solution. By means of double injection controlling technology and under the stirring with the stirrer, argentamine and reductant aqua are injected simultaneously into the reaction system containing protecting agent aqua to generate nano silver particle, and through ultrafiltering to desalt, nano silver colloidal water solution with average size smaller than 50 nm is obtained. Thus obtained nano silver colloidal water solution is stable, good in dispersion, small and homogeneous in size, and the preparation process is automatic, short in production period, low in cost and suitable for industrial production.

The invention discloses a preparation method of a nano-silver alginate fiber. The preparation method comprises the following steps of: preparing an alginic acid silver complex which is a precursor of nano-silver by using algal polysaccharides and soluble silver salts, and then preparing a sodium alginate based nano-silver colloid system through a chemical reduction method; then adding fiber-grade sodium alginate into the sodium alginate based nano-silver colloid system to obtain a nano-silver algae spinning solution; and finally, obtaining a nano-silver algae primary fiber through wet spinning, and carrying out stretching, sizing, drying and oiling treatments to obtain the nano-silver alginate fiber. The prepared nano-silver alginate fiber integrates the excellent performances of the nano-silver and the alginate fiber, so that the novel fiber has excellent flame retardance, biocompatibility, moisture absorption permeability and the like, also has excellent antimicrobial performance, antistatic performance and irradiation resistance and can be widely used in medical treatment, the fire-fighting field, the military field, the aerospace field, the health textile field and the like.

The invention relates to a carbon-carrier metal catalyst, wherein the active component is 5-80%; the mol ration of metal atoms is 3:1-1:3; the metal diameter of catalyst is 1-4nm. And the production comprises that: adding active component, complex agent, alcohol reducer and carrier into solvent; functioning ultrasonic wave at room temperature, adding alkali material, adjusting the pH, adding nitrogen gas to protect reflux at normal pressure, or reacting at high-pressure kettle; cooling to room temperature, adding acid, breaking gel via ultrasonic wave; filtering, washing with water until there is no CI-ion detected; vacuum drying; thermally treating at inertia gas; cooling in nitrogen gas to obtain the carbon-carrier metal catalyst. The invention has simple process; the catalyst active component is two-dimension at the surface of carrier; it has small particles, low crystallization degree, high metal utilization, and high catalysis activity.

A clip type light is detachably attached to a cap visor so as to ensure the user's field of vision. Two clips are integrally formed with both sides of a front section of a lamp body such that the two clips can be fixedly coupled with a front section of the cap visor regardless of the curved configuration of the visor. The clip type light can be easily attached to or detached from the cap visor without causing damage to the visor, and a switch for operating an electric lamp and an ultrasonic wave generator is provided at a lower portion of the lamp body in such a manner that the user can easily activate the electric lamp and the ultrasonic wave generator while wearing the cap equipped with the clip type light. A solar cell may also be provided to power the lamp and wave generator.

The invention relates to an electroslag remelting technique, in particular to a vacuum/gas shield electroslag remelting continuous directional solidification device and method. The device comprises a power supply, a consumable electrode (1), a water-cooling crystallizer (2) and a gas shield system, wherein the lower part of the water-cooling crystallizer (2) is provided with a water-cooling chassis (7) and a stripping device (13), and a two-circuit control mode is adopted by the consumable electrode (1) to make the stripping speed equivalent with the solidification speed of a cast ingot. The invention has simple operation and low cost, is convenient to control, can be used for producing large-dimension low-segregation directional solidification cast ingots and is suitable for mass production and application.

The invention provides a targeted photothermal black phosphorus nano-preparation, which is prepared from a black phosphorus nano-slice, polyethylene glycol absorbed on the surface of the black phosphorus nano-slice by means of electrostatic attraction, and folic acid connected to the polyethylene glycol by means of an amide bond, wherein one end of the polyethylene glycol is amino, and the other end of the polyethylene glycol is imino; nitrogen atom of the imino and carbonyl carbon atom of the folic acid are connected with each other so as to form the amide bond; the folic acid is exposed at the outermost layer of the nano-preparation. The targeted photothermal black phosphorus nano-preparation is high in stability, good in target recognition ability and excellent in light-heat property, is capable of effectively killing cancer cells, and can be used for performing targeted photothermal treatment on cancers at the cellular level. The invention also provides a preparation method and application of the targeted photothermal black phosphorus nano-preparation.

A stackable tray obtained by vacuum molding of a sheet of plastic material, said tray comprising, in open position: a) a top and a bottom; b) at least one receiving cavity opened upwardly, c) a hinge portion dividing said tray into a cover portion and a base portion; said receiving cavity being at least provided in said base portion; d) spacing means to keep, in a stack of trays, the top portion and the bottom portion of neighboring trays at distance from each other to thereby prevent interlocking therebetween; and e) at least one two-part locking means, each part being provided in the top of the sheet and positioned to engaged one into the other when the cover portion is folded over the base portion along the hinge portion to bring the tray into a closed position defining a box. A stack of said trays and a method using said trays.

The invention discloses an organic electrolyte comprising the following components in percentage by weight: 2%-5% of lithium chloride, 5%-8% of gamma-butyrolactone, 2%-5% of ethylene glycol, 0.1%-10% of phenyl surface active agent and balance of absolute ethyl alcohol. The invention also discloses a method for extracting non-metallic inclusions from steel. The method comprises the following steps: preparing the electrolyte, sleeving a microporous cellulose acetate plastic bag on the periphery of a steel sample to electrolyze the steel sample, and separating the inclusions in ultrasonic vibration and vacuum filtration manners. The organic electrolyte is environmentally friendly and low in toxicity. By utilizing the organic electrolyte, body injury to operation staff is obviously reduced, electrolysis time is shortened by accelerating electrolysis through an external magnetic field, the problem that a large number of iron and inclusions of iron and inclusions are difficult to be separated from the anode mud is overcome, and the non-metallic inclusions are accurately and roundly extracted with use of the cellulose acetate plastic bag.

The invention discloses an Ag/C (Silver/Carbon) hollow nano-sphere and a preparation method thereof, and belongs to the field of a catalysis technique. The preparation method comprises the following steps: taking an amorphous carbon ball as a carrier, uniformly mixing and stirring glucose and silver nitride, and reducing to obtain a uninuclear carbon-coated silver core-shell structure through a one step hydro thermal method; then, corroding the uninuclear carbon-coated silver core-shell structure through H2O2 (Hydrogen Peroxide), gradually changing a Ag core of which the size is about 100nm into nano-silver particles of which the sizes are smaller, diffusing the nano-silver particles to a carbon shell layer from inside to outside, and embedding the nano-silver particles into a carbon layer to leave a cavity; and obtaining the Ag/C hollow nano-sphere of the core-shell structure. The Ag/C hollow nano-sphere provided by the invention has the advantages of being capable of loading nano-scale catalyst granules in the amorphous hollow carbon ball, and preventing the aggregation and oxidation of the nano-catalyst; furthermore, a catalyst is simple in preparation process, high in activity and good in stability, thereby being extensively applied to the preparation of para-aminophenol by the catalytic hydrogenation of nitro-phenol.

The invention relates to the field of biology, in particular to MSC (mesenchymal stem cell) injection as well as a preparation and an application thereof. The injection comprises MSCs and a cell cryopreservation solution, wherein the cryopreservation solution comprises components in percentage by volume as follows: 25%-70% of an electrolyte balance solution, 5%-20% of clinical-grade DMSO (dimethyl sulfoxide), 1%-50% of 20% human serum albumin, 1%-10% of hydroxyethyl starch 130/0.4 and 5%-20% of triphosadenine-disodium magnesium chloride freeze-drying powder. The injection is free of animal serum, has clear ingredients and good cell cryopreservation effect and is safe and controllable, long-term storage and long-distance transport are facilitated, the survival rate of cells after recovery is higher than 95%, the vitality is high, and the injection can effectively relieve injury and inflammation symptoms of lesion tissue of lungs and promote tissue regeneration of the lungs, so that acute lung injury can be fundamentally and comprehensively treated.

The invention provides a remanufacturing method for scrap titanium chips through ball milling-equal channel angular pressing. The remanufacturing method sequentially comprises the step of recovering and pretreating titanium chips, the step of performing ball milling treatment on the titanium chips, the step of loading the titanium chips into an equal channel angular pressing mold, the step of performing preprocessing at a room temperature through the equal channel angular pressing, the step of curing and processing at a high temperature, and the step of quenching. The ball milling-equal channel angular pressing composite technique provided by the invention is simple and practical to operate and high in controllability. Through remanufacturing, not only can nanometer block titanium materials (smaller than 200nanometers) with full densification be obtained, but also the metallurgical defect of the continuous distribution and gathering of large sliced oxides can be eliminated. In addition, the shapes of the titanium chips are refined and reformed, and anisotropy caused by deformation texture in hexagonal close packed titanium materials is restrained. The yield strength of the remanufactured nanometer titanium materials reaches to the level of 5-grade titanium, the distribution of nanometer particles of the oxides presents a dispersed uniform state, and through the isotropy of the properties of the materials, the remanufacturing of scrap titanium resources for value increase at low cost is realized.