2199results about How to "Short manufacturing time" patented technology

The present invention relates to a method for forming a three-dimensional article through successively depositing individual layers of powder material that are fused together so as to form the article, the method comprising the step of heating a first portion of a support surface while depositing a layer of powder material on a second portion of the support surface.

Provided is a vacuum heat insulating material, using inorganic fibers as a core material, high in heat insulating performance (low in thermal conductivity), capable of maintaining the heat insulating performance for a long period, free of defects such as projections and depressions on a large scale on a surface thereof, short in manufacturing time and advantageous in terms of cost; and a manufacturing method therefor. A vacuum heat insulating material of the present invention is of a construction in which a core material 1 and a gas adsorbent 2 are housed in a bag 3 made from a gas barrier film and the interior thereof is reduced in internal pressure thereof and air-tightly sealed, wherein the core material 1 is a molded product obtained by coating a binder B on inorganic fibers having an average fiber diameter in the range of from 3 to 5 mum at a coating amount in the range of from 0.5 to 1.5 wt % relative to the fibers and heat pressing the inorganic fibers, or a laminate fabricated by stacking two or more sheets of the molded product.

Air conditioning units, methods of manufacturing, inventories, and buildings wherein certain heat exchanger modules are combined to make air conditioning units. In some embodiments, different combinations of different size modules are used to produce air conditioning units having different capacities wherein some identical modules are used in different size units. Various heat exchanger assemblies include spacers between modules, bends formed after modules are assembled into heat exchanger assemblies, attachment rails at the ends of the modules, inactive multi-tubes at the top and bottom of the modules, copper tubing between aluminum modules to facilitate field replacement of individual modules, name plates that attach between modules, attachment clips or spacers that snap attach to the modules, or a combination thereof, as examples.

Method of manufacturing liquid crystal display element includes disposing adhesive on at least one of first and second substrates; disposing spacer particles on at least one substrate; supplying liquid crystal material onto at least one substrate; and fixing the substrates together with adhesive spacer particles and liquid crystal material therebetween. The substrates are fixed together by applying pressure and/or heat to the substrates from an end portion toward the other end portion thereof. An impulse applied to each spacer particle can be between 0.001 gf.sec and 0.1 gf.sec in substrate fixing step. Parameter X relating to heating in fixing step can satisfy 200<=X<=3000, where X=(T-20)/(V.D), T is temperature (°C), V is fixing speed (mm/sec) of substrates, and D is diameter of spacer particles (mm). The spacer particles can occupy an area ratio of 0.003 or more to unit area of the substrate.

The invention discloses detection equipment and a detection method. The detection equipment comprises a sampling device used for collecting a sample to be detected, a preprocessing sample injection device used for preprocessing the sample from the sampling device, and a sample analysis device used for separating the preprocessed sample from the preprocessing sample injection device and analyzing the separated sample. The detection equipment is miniaturized, can quickly and accurately detect gas-phase matters or particulate matters without unpacking, and is high in accuracy and suitable for security check of airports, ports, metro stations and the like.

The present invention relates to one kind of high molecular weight polybutanediol succinate and its preparation process, and features that bihydroxy terminated butanediol succinate, especially low molecular weight bihydroxy terminated butanediol succinate, as the pre-polymer and diisocyanate as the chain extender in 0.1-13 % are molten and reacted to prepare polybutanediol succinate with low cost, great molecular weight, narrow molecular weight distribution and excellent mechanical performance. The polybutanediol succinate has number average molecular weight greater than 5.5x10<4>, molecular weight distribution of 1.4-1.8, tensile strength of 39-58 MPa, and elongation at break of 300-700 %.

The invention relates to novel polymer-based microstructures, with outstanding shape accuracy and cost-effective processing. The novel polymers are based on hyperbranched macromolecules and enable remarkable property combination such as reduced shrinkage and associated low stress, high shape fidelity and high aspect ratio in patterned microstructures, with additional benefit of fast and low-cost production methods. The invention also relates to methods to produce these microstructures. The polymer-based microstructures are relevant for, but not limited to micro- and nano- technologies applications, including lab-on-a-chip devices, opto-electronic and micro- electromechanical devices, optical detection methods, in fields of use as diverse as automotive, aerospace, information technologies, medical and biotechnologies, and energy systems.

The invention discloses a method for improving the flavor and the texture of plant enzyme food by utilizing fermentation of compound strains. The method is characterized in that strains with good permeability resistance, aroma strains, plant-source preponderant strains and strains for optimizing the texture of a product are screened by sugaring digestion, fermentation of the compound strains, after-ripening, clarifying and membrane filtration treatment, reasonable and scientific combination is carried out on the strains, the preparation time of the plant enzyme food is effectively shortened by controlling the matching and the used amount of the strains, the prepared plant enzyme food is coordinated in flavor, stable in texture, safe and sanitary, and uniform in color, has strong composite fruit flavor and fermenting mellow flavor, is viscous in organization and mellow in taste, has no stimulation in eating, is coordinated in sweetness and sourness, smooth in swallowing, and sweet and lasting in residual taste. The method disclosed by the invention has the advantages that the process is simple, the fermented product can be stored at normal temperature, and the quality is still stable after 6 months, so that the method is suitable for large-scale production, and has a good market prospect.

The invention relates to a high-magnification supercapacitor composite electrode material and a preparation method thereof. The composite electrode material is obtained by H-bond action between an oxygen-containing group of a graphene oxide and an oxygen-containing group of a carbohydrate, graphene is wrapped on the surface of activated carbon particles at the microscopic scale, and the high-magnification supercapacitor composite electrode material is of a spongy porous structure on the whole. The material disclosed by the invention is prepared by high-temperature activation, so that the structure is stable; and as the electrode material of a supercapacitor, the activated carbon/graphene composite material prepared by adopting the method disclosed by the invention shows more excellent magnification performance in comparison with the traditional activated carbon.

The invention discloses a method for quickly preparing hydrophobic silicon dioxide aerogel at low cost. The method comprises the following steps of (S1) mixing a silicon source, water and a surfactant evenly to obtain a precursor solution, adding an acid catalyst to the precursor solution, adjusting the pH value to be 3-4, and then hydrolyzing to obtain sol; and (S2) dropwise adding an alkali catalyst to the sol obtained in the step (S1), continuously stirring in the dropwise adding process, adjusting the pH value to be 6-7, and carrying out gel standing, ageing and ambient pressure drying to obtain the hydrophobic silicon dioxide aerogel. The method is low in cost, free of solvent exchange, short in production cycle and free of environmental pollution; and the prepared hydrophobic silicon dioxide aerogel has good heat preservation and heat insulation properties, hydrophobicity and flexibility.

The invention discloses a preparation method of yak bone collagen peptide. The method is characterized by comprising the following technological processes: pretreatment of raw materials, gelatin extraction, separation of a collagen extracting solution, composite enzymatic hydrolysis, enzyme deactivation and sterilization, separation of a peptide solution, decoloring and deodorizing, concentrating and drying. The compound enzyme for composite enzymatic hydrolysis is prepared from protease, amylase, pectinase, cellulose and xylanase. The method has the advantages that the gelatin extraction process is simple, oil and gelatin are completely separated by using flow of a mixed solution, the enzymatic hydrolysis temperature is 48-52 DEG C, the time is 4-6 hours, the temperature is reduced in comparison with common enzymatic hydrolysis temperature, the preparation time of the product is shortened, and the method comprises enzyme deactivation and sterilization procedures, and decoloring and deodorizing procedures, so that the product is good in taste, and applicable to preparation of the yak bone collagen peptide.

The invention relates to a loaded type nickel-based catalyst used for slurry bed methanation, and a preparation method and an application thereof. The loaded type nickel-based catalyst is composed of, by weight, 10-40 wt% of NiO, 56-90 wt% of a carrier and 0-4 wt% of an auxiliary agent. The loaded type nickel-based catalyst is prepared by the steps of preparing a soluble salt solution of 0.5-1.3 g/mL nicdel nitrate and the auxiliary agent; adding a catalyst carrier and a soluble organic fuel to the salt solution in sequence; impregnating for 6-24 h while stirring; heating the solution for concentration in a water bath with a temperature of 60-90 DEG C after finishing the impregnation, or heating for igniting the solution at a temperature of 300-700 DEG C directly; collecting the combustion residue powder, grinding the powder and granulating, and reducing for 2-6 h with a reducing gas on a fixed bed at a temperature of 500-700 DEG C. The loaded type nickel-based catalyst has a slurry bed methanation process, and has the advantages of good and stable catalytic performance, and can be used for large-scale industrialization.

The invention discloses a method for preparing graphene through a liquid-phase stripping method. The preparation method comprises the following steps: S1, performing expanding treatment on a graphite raw material through an expanding method; S2, dispersing the expanded graphite into an aqueous solution containing a surfactant to obtain a mixture, performing ultrasonic treatment on the mixture, centrifuging the mixture, and drying the mixture for later use; S3, adding the dried graphite into an organic solvent, a mixed solution of an organic solvent and a surfactant or a mixed solution of an organic solvent and substances with surface energy similar to that of the graphene, performing ultrasonic treatment and suction filtration, drying, and repeating the step S3 for 1-10 times, thereby obtaining graphene. Compared with the prior art, the method disclosed by the invention can be used for greatly shortening the ultrasonic treatment time, improving the stripping efficiency and obtaining high-quality graphene under low-power ultrasonic treatment.

The invention provides a preparation method of a high temperature resistant silicon dioxide nanometer fiber filtering membrane. The preparation method is characterized by comprising the specific steps of: adding organosilicone, water, ethanol and inorganic acid at room temperature into a stirring kettle so as to obtain a mixed solution, and adding inorganic salt; stirring the mixed solution so as to obtain a precursor colloidal sol; inputting the precursor colloidal sol in a spinning head of electrostatic spinning equipment, simultaneously wherein the spinning head is connected with a high-voltage power supply so as to carry out electrostatic spinning to obtain the nanometer fibrous membrane; placing the nanometer fibrous membrane into a vacuum drying chamber to dry, then placing into a box resistance furnace to carry out warming for calcination, namely obtaining the high temperature resistant silicon dioxide nanometer fiber filtering membrane. The preparation method provided by the invention has the advantages that the preparation process is simple, the cost is cheap, the fiber diameter of the acquired high temperature resistant silicon dioxide nanometer fiber filtering membrane is small, the fire resisting quality is good, and the high temperature resistant silicon dioxide nanometer fiber filtering membrane has good structural stability; and the filter efficiency of high temperature smoke dust particles the sizes of which are more than 0.24 mum achieves 99.9% at 1500 DEG C, and the high temperature resistant silicon dioxide nanometer fiber filtering membrane has extensive application prospects in the fields such as high-temperature insulation, individual protection, and aerospace.

The invention opened a preparing method of the cellulose fibre spinning stock solution. The solvent is the intermixture of the [BMIM]Cl and the [BMIM]BF4. The cellulose dissolves in the solvent after breaking up to get the uniform and transparent liquid. So it can save the energy, decrease the pollution and improve the quality of the stock solution.

The invention discloses a preparation method for a polycarboxylic acid series comb-shaped surface active agent, which comprises the following steps of: mixing two comonomers, an initiator, a chain transfer agent and a solvent under the protection of nitrogen, heating to a reacting temperature for polymerization to obtain an intermediate polymer; adding a graft compound, a catalytic agent and a dissolvant into the intermediate polymer, carrying out graft reaction at graft temperature, decompressing and removing part of solvent in a reaction system after reaction, and then precipitating the product with a precipitator; dissolving filter cakes with the solvent; precipitating the dissolved solution with the precipitator again, dissolving repeatedly, precipitating again and then refining, and finally decompressing and drying the product to the constant weight. The preparation method has the advantages of reasonable technology, simple operation, low preparation cost, mild reacting conditions and good product quality.

The invention relates to a preparation method of a particle-reinforced magnesium-based composite material and aims at solving the problem that the particle-reinforced magnesium-based composite material prepared by an existing method is low in strength and poor in plasticity, particles are unevenly dispersed in magnesium alloy and the preparation time is long. The preparation method comprises the following steps of 1 preparing a magnesium alloy semi-solid melt; 2 preparing a particle-magnesium alloy melt; 3 enabling the particle-magnesium alloy melt to be solidified and formed. The preparation method has the advantages that the tensile strength and yield strength of the obtained particle-reinforced magnesium-based composite material are improved by 50%-150%, the highest elongation rate reaches to 8%; the particles are evenly dispersed in the magnesium alloy, the pore defect in the magnesium-based composite material is overcome; the process is simple, the preparation time is shortened by 15%-30%. The particle-reinforced magnesium-based composite material can be obtained by using the preparation method.

The invention discloses a trichoderma spore powder as well as a preparation method and application thereof. The trichoderma spore powder contains trichoderma spore powder and a drying aid, wherein the trichoderma spore powder is the spore powder of Trichoderma sperellum T1 which is preserved in the general microorganism center of CCCCM (China Committee for Culture Collection of Microorganisms) and has the preservation number of CGMCC NO: 3531 and a rDNA ITS region segment sequence shown in SEQ ID NO:1; the drying aid is one or more of beta-cyclodextrin, potato starch and soluble starch. The trichoderma spore powder has an effective prevention and control effect on banana vasicular wilt, and has a remarkable antagonism effect on various pathogenic funguses, especially on soil-borne funguses. The preparation time is saved with the preparation method of the trichoderma spore powder, which can be used for preparing the trichoderma spore powder which has high density, high germination rateand high drying efficiency and is easy to store, transport and use.

The invention provides a high-ductility cement-based composite material. The high-ductility cement-based composite material is prepared with the following raw materials by weight: 71.8-85 parts of base material, 12.9-25.2 parts of water, 0.89-2.67 parts of fiber and 0.11-1.23 parts of admixture, wherein the fiber is composed of two or more of polypropylene fiber, polyvinyl alcohol fiber, polyethylene fiber, aromatic polyamide fiber and glass fiber; the weight ratio between the polypropylene fiber, the polyvinyl alcohol fiber, the polyethylene fiber, the aromatic polyamide fiber and the glass fiber, and the total fiber is 15-89.5%, 0-68.4%, 0-75.6%, 0-73.5%, and 0-56.4% respectively. The high-ductility cement based composite material is high in compressive strength and low in preparation cost; the compressive strength can be up to higher than 50.5 MPa; the preparation cost is reduced to 15-50% of that of the prior art. The invention further provides a preparation method of the high-ductility cement based composite material.

The invention relates to an oxygen reduction catalyst for a fuel cell, and a preparation method thereof. The oxygen reduction catalyst comprises a transition metal oxide and graphene, wherein a ratio of the transition metal oxide to the graphene is 1-100:1-50, the particle size of the transition metal oxide loaded on the graphene is 0.1-600 nm. The catalyst and the preparation method of the present invention have the following advantages that: with the method, the preparation time is shortened, the cost is low, the reaction conditions are mild, the process is safe, and the catalyst has advantages of good methanol resistance and good carbon monoxide resistance.