2471results about How to "Realize mass production" patented technology

The invention discloses a method for preparing a foam material reinforced silica aerogel composite material and relates to silica aerogel. The method comprises the following steps of: preparing silica plural gel and aging the silica plural gel, modifying and drying. Through test, porosity is 80 t o 95 percent, density is 0.15 to 0.5g / cm<3>, the Brunauer-Emmett-Teller (BET) specific surface area is 600 to 1,100m<2> / g, and a water contact angle is 130 to 160 degrees; the foam material reinforced silica aerogel composite material is super hydrophobic; aerogel pore size distribution is relativelycentralized and the pore size of the aerogel is 2 to 50nm; and coefficient of heat conductivity is 0.01 to 0.035 W / (m.K), compression strength is 0.3 to 2Mpa (2 percent deformation), and elastic modulus is 1 to 5 Mpa. Meanwhile, the foam material reinforced silica aerogel composite material has good heat insulation performance, and adsorption performance, environment-friendliness and the other excellent performance. The method is simple, is short in a cycle, low in cost, and high in safety, and contributes to large-scale production; and by the method, excellent performance of the aerogel can be kept and the mechanical property of aerogel can be improved.

The invention provides a method producing the organic-inorganic compound fertilizer by the molasses fermentation waste liquor and the lime sludge, which relates to a method producing the fertilizer through fermentation and solves the problem of reclaiming and processing the molasses fermentation waste liquor continuously on a large scale. The method of the invention is that the biological humic acid with weight per cent of 0.4 per cent to 0.6 per cent and made by the bagasse is mixed with the lime sludge of 65 per cent to 68 per cent, bagasse powder of 10 per cent to 12 per cent, wheat bran of 1.5 per cent to 2.5 per cent and regulator of 16 per cent to 25 per cent to ferment fully and continuously in a shorter time. The fermented materials with water of 10 per cent to 12 per cent are gained after opening and drying and are crushed into the lime sludge organic fertilizer. The molasses fermentation waste liquor with water of 90 per cent is condensed to the hyperconcentration liquor with water of 26 per cent to 28 per cent by the three-effect forced circulating concentration system and then through the two-effect scraping and steaming hyperconcentration system. The hyperconcentration liquor of 30 per cent to 33 per cent and the biological humic acid of 9 per cent to 10 per cent are stirred and mixed uniformly based on the weight per cent and are added with the fertilizer of 32 per cent to 34 per cent and the lime sludge organic fertilizer of 25 per cent to 27 per cent to stir to produce the organic-inorganic compound fertilizer through dry extrusion and prilling.

The invention belongs to the field of graphene material, and provides a graphene aqueous slurry, and a preparation method thereof. The graphene aqueous slurry comprises an aqueous dispersion liquid and a graphene material dispersed in the aqueous dispersion liquid, wherein the aqueous dispersion liquid contains a surfactant. The preparation method comprises following steps: graphite oxide solid or expansible graphite solid is taken as a raw material, and expansion treatment is carried out so as to prepare expanded graphite; the expanded graphite is immersed into an aqueous stripping liquid for infiltration treatment so as to obtain a mixture containing the expanded graphite; the mixture containing the expanded graphite is subjected to high-speed shearing or ultrasonic treatment so as to remove the aqueous stripping liquid so as to obtain a graphene wet material; the graphene wet material is added into the aqueous dispersion liquid, and high-speed shearing is carried out so as to obtain the graphene aqueous slurry.

The invention discloses a full-automatic aluminum cutting device which aims at solving the problem of low manual feeding efficiency of the existing aluminum cutting device and provides a safe and convenient full-automatic aluminum cutting device which can ensure the quality. The device of the invention includes: a feed device, a bracket and a cutting saw arranged on the bracket; the feed device includes an upper clamping part, a lower clamping part, a horizontal feed part and a locating part. The device fully uses machines to replace manual operation, thus not only enhancing the accuracy, increasing the efficiency, reducing the cost, but also saving the human labor and materials as well as enhancing the safety performance.

A process for preparing a lot of hollow carbone nanocages includes such steps as proportionally mixing metallic carbonyl liquid with low-carbon organic liquid to obtain reaction solution, heating reactor while introducing inertial gas to it, pumping said reaction solution into the reactor to obtain solid carbon nanocages, putting them in pure nitric acid or the mixture of nitric acid and distilled water, ultrasonic oscillating, heating, reflux cooling, diluting by distilled water, laying aside for deposition, and baking the deposited substance.

The invention provides a method for largely preparing superfine spherical titanium aluminium-based alloyed powder, which belongs to the technical field of powder preparation. The method comprises the following steps: smelting high-purity aluminium and titanium sponge as main raw materials and Al-Nb intermediate alloy, Ti-B alloy, tungsten powder and high-purity yttrium scraps as auxiliary raw materials into an alloy cast ingot in a vacuum consumable electrode arc skull furnace or a vacuum induction furnace; then carrying out coarse crushing and vortex airflow milling to prepare irregular superfine alloy powder; and finally carrying out plasma spheroidization of radio frequency (RF) and the like to prepare the superfine spherical titanium aluminium-based alloyed powder. The prepared alloy powder has the advantages of high purity, fine particle size, narrow particle size distribution, good uniformity, high sphericity, good flowability and the like and can meet the demands of the technical industrial production of injection forming, gel injection molding forming, thermal spraying and the like.

The invention provides a continuous casting method of a liquid-phase composite slab. A continuous casting device comprises a composite casting system, a roll type crystallizer, a pinch and bending device, a withdrawing-straightening device, a shearing device and a dummy bar system. A base material metal pouring ladle and a composite material metal pouring ladle pour metal solution into a roll type crystallizer molten pool formed by crystallizing rolls and side seal plates via submerged nozzles. An intermediate diaphragm separates the molten pool into a base material dissolved cavity and a composite material dissolved cavity. The base material metal solution and the composite material metal solution are respectively solidified into slab shells on the crystallizing rolls, the crystallizing rolls synchronously rotate in the reverse direction and the metal slab shells move downward along with rotation of the crystallizing rolls. The base material metal liquid interacts with the composite material metal solid-liquid interface to realize metallurgical fusion and composition of the interface, and is bonded into the composite slab at the exit of the roll crystallizer. The composite casting slab is transferred by pinch rolls and bent into arc by a bending roll, and then enters the withdrawing-straightening section through a guide roll to be horizontally straightened. The composite casting slab keeps on moving forward to the roll way in a shear zone to be cut to length by swinging shears and then is moved out.

The invention relates to a stereoscopic core assembly casting method of a water turbine blade, in particular to a casting method of a large water turbine blade. The casting method is characterized in that the casting method comprises the steps of designing process, making a core box, making a core bar, making a core, patching a sand core, assembling the cores, putting the cores into a sand box, paving a spure, sounding the sand core with silica sand, assembling the box, pressing the box, pouring, cutting a dead head, tempering, detecting a mold line, grinding and shotblasting. The casting method obviously shortens production cycle, reduces equipment capacity requirements for blade production, is simple in operation and easy to control and achieves blade mass production.

The invention discloses an optical fiber vibration sensing head, which consists of a vibration sensitive chip, a dual fiber collimator and an encapsulation shell, wherein the inside of the encapsulation shell under the dual fiber collimator is provided with a cavity, the vibration sensitive chip is arranged in the cavity and consists of micro light reflector, a silicon supporting frame and a substrate glass sheet; the silicon supporting frame is bonded with the substrate glass sheet; the micro light reflector is arranged in the silicon supporting frame; a damping air cavity is reserved between the micro light reflector and the substrate glass sheet; two sides of the micro light reflector is symmetrically provided with torsion shafts; and one end of each of the torsion shaft is connected with the silicon supporting frame. An MEMS process is used to integrate a MEMS vibration sensitive chip. Based on an asymmetric torsion micro light reflector structure, the MEMS vibration sensitive chip can be manufactured in batch. The torsion shafts are used as elastic elements, and the micro light reflector is used as a sensitive mass block to reflect vibration acceleration. The damping air cavity is used for controlling the damping characteristic of torsion. The invention has the advantages of batch production, low cost and high consistency.

The invention discloses a degradable polylactic acid diblock copolymer, a preparation method and application to modified polylactic acid, solving the problems of instable performance, high preparation cost and unsuitability for industrialized continuous production of modified polylactic resin in the prior art. The preparation method of the degradable polylactic acid diblock copolymer comprises the following steps of: adding dried and dewatered polylactic acid A with an end group being hydroxy into a reaction device under the protection of an inert atmosphere, adding diisocyanate B, heating to 185-190 DEG C, reacting with stirring for 5-8h, adding degradable high polymer C containing hydroxy, reacting with stirring for 1-2h at the temperature of 185-190 DEG C, adding the diisocyanate B, and reacting at the temperature of 185-190 DEG C until the stirring is difficult to obtain the degradable polylactic acid diblock copolymer. The degradable polylactic acid diblock copolymer disclosed by the invention is good in compatibility with the polylactic resin, is used for modifying the polylactic resin, is capable of remarkably improving processing property and mechanical property of the polylactic resin, and has the elongation at break reaching 60 percent.

The invention provides a rare earth sintered magnet and a manufacturing method thereof. The magnetic property residual magnetism Br of the magnet is between 12.8 and 13.3 kGs, the intrinsic coercivity Hcj is more than or equal to 30 kOe, and the content of oxygen in the magnet is between 500 and 900 ppm. The rare earth sintered magnet is prepared by the manufacturing process that: a smelting procedure is a vacuum quick-setting process, and the thickness of produced sheet alloys is between 0.1 and 0.5mm; a hydrogen decrepitation process is used for production in an intermediate crushing procedure; a jet mill is used for production in a micro powder manufacturing procedure, and the average particle size of micro powder is between 3.0 and 4.5 mu m; a compression procedure is used for compression molding under the environment of anaerobic inert gas; and a sintering procedure is used for sintering and aging by means of a vacuum sintering furnace.

The invention provides an angle-adjustable drilling machine comprising a base frame and a drilling device. A machining platform is erected on the base frame, and the drilling device is arranged above the machining platform. The angle-adjustable drilling machine is further characterized by comprising an angle adjusting device; the angle adjusting device comprises an adjusting mechanism and a shaft, and the shaft is correspondingly fixed to the machining platform, and is pivoted to the drilling device; the adjusting mechanism and the drilling device are connected to adjust and limit the inclined angle. The angle-adjustable drilling machine has the advantages that the angle adjusting device is arranged for the drilling machine, so that a drill bit can be conveniently adjusted to different required angles to perform hole-drilling operations on a horizontal plane, and components required to be provided with inclined holes can be produced in large scale.

The invention discloses a silver zinc oxide electric contact material and a preparation method thereof, and belongs to the technical field of electrical materials. The method comprises the following steps of: melting and ingoting silver, zinc and additives in a smelter according to a certain weight ratio, sintering and extruding into strips, and drawing to form a silver-zinc alloy wire material; oxidizing the silver-zinc alloy wire material to obtain a silver zinc oxide wire material; cutting the wire material into pieces by an open-back inclinable press, pressing the cut pieces in a steel die to manufacture an extruded stock, and sintering and extruding the cut pieces to manufacture a plate or a wire material; polishing the surface of the extruded plate, performing hot rolling on silver, rolling, punching and molding; and drawing, annealing and drawing the extruded wire material to a finished product wire material with phi of between 0.5 and 3.0mm to produce the rivet electric contact. In the method, the silver-zinc wire material is used for oxidation, so the alloy is easily oxidized without special oxidizing equipment; the metallographic phase of the material has uniform tissue without an oxidation zinc lean region or oxidation aggregation, and the consistency of the material performance, high compactness and good processing performance can be ensured; the method can realize mass production and has low production cost; and the production process and the material per se have no pollution to the environment.

The invention discloses preparation methods of mineralized hydrogel and a biomimetic mineralized bone repair material. The mineralized hydrogel is prepared by using a photoactivated biomacromoleculesand a photoactivated phosphatase as raw materials; hydrogel is formed by initiating cross-linking by means of light irradiation or initiating polymerization cross-linking by means of a radical initiator; when the hydrogel is put into mineralized liquid, phosphatase can promote the uniform deposition of phosphate in the gel, so that the uniformly mineralized hydrogel is obtained. Phosphoprotein-like molecules are added during the preparation of the hydrogel; the phosphoprotein-like molecules can promote the uniform deposition of phosphate along a molecular network of biomacromolecules, so thatthe high-strength mineralized hydrogel can be obtained. When the phosphoprotein-like molecules and cells are added during the preparation of the hydrogel, the in-situ loading of the cells can be realized, and the enzyme in a process of bone physiological mineralization can be simulated so as to promote a phosphate mineralization process, so that the biomimetic mineralized bone repair material withhigh strength can be obtained, and the personalized customization of the bionic mineralized bone repair material can be realized; therefore, the preparation methods have a broad application prospectin the field of bone tissue engineering.