137results about How to "Reliable production process" patented technology

The invention provides a medium and low temperature denitration catalyst, and belongs to the technical field of denitration catalysts. The catalyst is prepared from ultrafine titanium dioxide, strontium-doped cerium manganese calcium titanium ore type composite oxides, vanadium pentoxide, tungsten trioxide, molybdenum trioxide and stannic oxide; glass fiber is used as an enhancing agent; carboxymethylcellulose and polyoxyethylene are used as bonding agents; stearic acid is used as a lubricating agent. The invention also relates to a preparation method of the medium and low temperature denitration catalyst. The concrete preparation method comprises the steps of preparation of the strontium-doped cerium manganese calcium titanium ore type composite oxides, preparation of carrier materials, preparation of powder catalysts, extrusion forming of honeycomb-shaped catalysts and post treatment of honeycomb-shaped denitration catalysts. The denitration catalyst prepared by the method has the advantages of high denitration efficiency, good sulfur-resistant and waterproof performance, reliable production process and the like in the wide temperature range from 180 DEG C to 350 DEG C; the requirements of oxynitride removal from industrial smoke gas in industries of coking, petrifaction, furnaces and the like can be met; wide application prospects are realized.

The invention discloses high-filler paper and a production method thereof. The high-filler paper contains 30 to 60 mass percent of filler, and the filler is active calcium silicate; in the step of adding the filler, after the active calcium silicate in an amount which is 40 to 70 percent of the total mass of the active calcium silicate and the pulp is fully stirred and dissolved to form emulsion,the emulsion is guided into a covered pulp storage tank or a pre-making pulp storage tank and fully stirred and mixed with plant fibers; the filler adding proportion of the high-filler paper is improved, so that the consumption of the plant fibers is greatly reduced at the same time of improving the performance of the paper; and according to the production method for the high-filler paper, the adding process of the papermaking filler is simplified, the filler and the plant fibers can be fully mixed uniformly, and the internal bonding force is increased, so that the performance of the paper isimproved.

The invention relates to a rare-earth molybdenum alloy wire and its process for preparing. The invention is characterized in that the said alloy wire contains two rare-earth oxides including lanthanum oxide and Y oxide(mass %) which is 0.4 %-1.0% of the alloy amount and the proportion by weight of lanthanum oxide and Y oxide is 4:1. The process for preparing is different from the traditional powder metallurgy productive technology, which includes performing double-cone vacuum drying and liquid-solid doping at molybdenum dioxide stage, then performing secondary reduction to prepare binary rare-earth doping molybdenum powder, finally preparing rare-earth doping molybdenum wire with Mo-La-Y of 0.5-0.8mm diameter by impression, agglomeration and pressure processing procedure. Compared with the pure molybdenum, the product is of good high-temperature behavior and high recrystallization temperature which increases by 300-500 DEG C than the pure molybdenum, and is of high intensity and abrasive resistance, low ductility and long durability, which has wide application in the mechanical process industry.

The invention provides a method for preparing carbon / carbon cylinder by using a winding technology. The method comprises the following steps that (1)a graphite material is utilized to design, manufacture and form a mold according to the dimension of the cylinder; (2) product structures of a sealed type cylinder and a structural type cylinder are designed respectively according to the using functional requirements of the cylinder; (3) winding forming is conducted by using a winding machine; (4) solidification treatment is conducted; (5) carbonization treatment is conducted; (6) CVD (chemical vapor deposition) densifying treatment is conducted; (7) high temperature treatment is conducted; and (8) machining forming is conducted. Compared with a traditional carbon / carbon cylinder production technology, the method has the following advantages that (1) the product is designed and formed in net dimension, the machining allowance of the finished product is less, the production cost is as low as 60% of the traditional technological cost; (2) the fiber content of the product is high, the basic density of the green body of the formed product is high, the product period is short, the machiningallowance is saved, and the strength is high, the method can achieve the sealing function of the carbon / carbon cylinder, the furnace internal thermal treatment efficiency is effectively improved, theservice life of a furnace external heat preservation material is prolonged, and the carbon / carbon cylinder can serve as a gas transmission pipeline, and has the generalization performance, the innovation advantage and the batch production advantage.

The invention discloses a making method of high-temperature metal molybdenum filament with trace lanthanum, which comprises the following steps: reducing molybdenum oxide in the vacuum twice; punching; sintering; rolling; drawing; obtaining the Mo-La alloy filament.

The present invention relates to a phosphate methacrylate antirust polymerisable emulsion with rust and the preparing technique thereof. The chemical structural formula of the phosphate methacrylate antirust polymerisable emulsion with rust is: and the method is: mixing the methacrylate-beta-hydroxyethyl, phosphoric acid and toluene according to the mass ratio, and adding the hydrochinone with 0.5% of the gross mass of methacrylate-beta- hydroxyethyl and phosphoric acid; decompressing and stirring the system, heating the reactant to 55 to 60 DEG C, separating the generated water from the boiling flask with the water segregator, and the solution A is obtained when the raw material has reacted for 5h; then decompressing the solution A and distilling the dissolvent toluene; taking out the product when the reaction has completed. Except for the common advantage of the common polumerisable emulsion the invention has the unique predominance: namely without adding the iron red or zinc phosphate in preparing the aqueous antirust coating with rust, and processing the antirust with rust function which is not processed by the common emulsion, the invention is a functional polymerisable emulsion and is evidently better than the traditional emulsion.

The invention discloses a method and device for preparing a high-strength and high-conductivity copper-carbon nano-tube composite material under a magnetic field. A dispersing agent is added to enable a bilayer structure to be formed on a carbon nano-tube particle surface, an outer-layer dispersing agent polar end and a plating solution have the higher affinity, the wetting degree of carbon nano-tube particles by the plating solution is improved, and uniform dispersion distribution of the particles is facilitated; in the plating process, the exerted magnetic field and an electric field interact to generate the magnetohydrodynamic effect caused by Lorentz force, so that the mass transfer effect of the planting solution is enhanced, and the uniformity of the plating solution is improved; the nano-tube particles are stretched in the axial direction under the effect of the Lorentz force, and are orderly arranged in an orientation manner under the effect of the magnetic field; meanwhile, adhesive force between the composite electrodeposition nano-tube particles and a metal belt base plate is increased due to the effect of the magnetic field, and compactness and stability of a copper-carbon nano-tube composite plating layer are improved; and due to the fact that the phenomenon that copper ions are wrapped with a nano-tube exists, the contact resistance between the nano-tube and a metal base plate is reduced, and therefore the conductivity of the copper-carbon nano-tube composite material is effectively improved.

The invention provides a method for manufacturing an organic supercapacitor electrode plate. The method comprises the following steps of: manufacturing an aluminum foil pretreatment coating, adding an adhesive into deionized water, and uniformly stirring at normal temperature; adding a conductive agent, absolute ethanol, a carbon nano tube and sodium carboxymethyl cellulose, stirring at a high speed and dispersing to obtain the coating; uniformly coating the manufactured pretreatment coating on an aluminum foil by employing a coating process, coating active substance slurry on the pretreated aluminum foil, and drying to manufacture the electrode plate. A corrosive aluminum foil is replaced by a common aluminum foil, the cost of raw materials is effectively reduced, and the production operability and stability are improved; meanwhile, after the aluminum foil is pretreated, internal resistance of the supercapacitor is greatly reduced, and high-power output performance of the product is improved.

The invention provides a process for producing knitted and dipped PU (polyurethane) gloves. The process comprises the following steps of: dipping knitted gloves into a solvent, wherein the solvent is prepared from polyurethane resin and DMSO (dimethyl sulfoxide) according to the proportion of 1:1.4-1:1.9, the solvent temperature is maintained to be higher than 20 DEG C, and the polyurethane resin is synthesized by the participation of dimethyl sulfoxide; carrying out water bath treatment on the dipped knitted gloves; drying the knitted gloves subjected to the water bath treatment, wherein the drying time is for 50-60 min, and the drying temperature is 100-110 DEG C; and recycling the DMSO in the solvent from the water in the water bath with a vacuum depressurization method. The invention also provides a solvent for the process for producing the knitted and dipped PU gloves, wherein the solvent is prepared from the polyurethane resin and the DMSO according to the proportion. The invention also provides gloves produced by using the process for producing knitted and dipped PU gloves.

The invention relates to a method for preparing hot melt art antifalsification paper, which comprises the following steps: firstly, selecting wood fiber to do fluff and one-time beating, selecting RRXW commodity fiber and fluorescent fiber to process and beat, mixing wood fiber pulp, RRXW fiber pulp and fluorescent fiber pulp according to the proportion of 82: 15: 3, doing blending and beating, charging chemical findings and assistant to blend, dehydrating, modeling, decorating, adopting hot wind dry, far infrared dry and seal dry to do polybasic modeling dry, gluing paper to do non-contact dry, and improving the gluing effect. The multiple fiber allocation of the invention enables pulp to be provided with good compatibility connection and even blend distribution property, higher dry-wet strength, physics, appearance property and the polybasic modeling drying ensures the paper dry effect and the RRXW fiber against damaging. The method for preparing hot melt art antifalsification paper is simple in preparation, reliable in preparation technique, strong in operation and superior in hot melt property and antifalsification property.

The invention relates to a building sealing material prepared by compounding a plurality of polymer materials and a method for preparing the same. The cross linkage in phase state is preformed on materials such as a ethylene-octylene multipolymer, polypropylene, a styrene elastic body, ethylene propylene diene rubber and a filler so that the processed material has the advantages of various polymer materials to make up the deficiency of various polymer materials; the advanced dynamic vulcanization reaction extrusion technology is adopted so that various polymer materials in a composition system are formed in a structure of crossing network and undergoes sufficient cross linkage; various polymer materials are scattered evenly in the polypropylene continuous phase in form of particles so that the processed building sealing material evidently improves the performances such as strength, elasticity, weather resistant property, compression resistance, and permanent deformation resistance, compared with the prior material; meanwhile, the antifatigue and anti-chemical product properties and the stability are improved evidently; the production technology is reliable, the maneuverability is strong, and the automation degree of production is high; therefore, the building sealing material has great pratical and popularized values.

The invention provides a submicron aperture composite membrane based on a heavy ion microporous membrane, which comprises an ultrathin heavy ion microporous membrane layer and a support layer, the ultrathin heavy ion microporous membrane layer is compounded on the support layer, and the thickness of the ultrathin heavy ion microporous membrane layer is 0.5-2 microns. The composite membrane provided by the invention is thin in thickness, large in flux and good in mechanical property. The preparation method provided by the invention is based on innovation of a traditional method, wherein the supporting layer is added on the heavy ion microporous membrane layer, then compounding is carried out in a hot pressing or glue compounding mode, and then etching and cleaning are carried out, so that the problem that a thin film material is broken and cannot be etched due to the fact that the thin film material is too thin in the etching process can be solved. According to the composite membrane prepared by the method, the separation layer is greatly reduced in thickness (more than 5 microns) compared with a conventional heavy ion microporous membrane, so that the flux can be increased by 2.5-10 times. The method is stable and reliable in production process, and a reliable production technology is provided for application of the heavy ion microporous membrane with the submicron aperture.

The invention provides a method for producing cottonseed germ materials used in low-temperature pretreatment production of gossypol-removed cottonseed protein. The method comprises: cleaning and removing impurities in delinted cottonseeds; husking the cottonseeds after impurity removal; obtaining mixture of cottonseed kernels and cottonseed husks; repeatedly separating the mixture by use of a screening and / or winnowing method; obtaining the cottonseed kernels in which the content of the cottonseed husks is less than or equal to 18 percent; softening the cottonseed kernels at a temperature lower than or equal to 80 DEG C; rolling the cottonseed kernels into germ sheets; adjusting quality at a temperature lower than or equal to 80 DEG C; and obtaining germ materials. The germ materials produced by use of the method have the advantages of good shape, high strength, less breakable property, good permeability during extraction, short seepage time, low content of residual oil and gossypol in meal after oil extraction and gossypol removal, capability of continuous production and capability of maintaining the original nutritional value of protein.