351results about How to "Strong combination" patented technology

The invention relates to a method for processing a high-temperature alloy furnace tube, which comprises the following steps: controlling the pressure of low-oxygen partial pressure gas to 0-3 atmospheric pressure; introducing the low-oxygen partial pressure gas into an atmosphere furnace provided with the high-temperature alloy furnace tube; raising the temperature to between 600 and 1,100 DEG C; keeping the temperature for 5 to 80 hours; and forming an oxidized protective layer on the surface of the high-temperature alloy furnace tube to obtain the processed high-temperature alloy furnace tube, wherein the low-oxygen partial pressure gas comprises one or two kinds of H2 and CO, and water vapor accounting for 0.17 to 2 percent of the volume fraction of the low-oxygen partial pressure gas. The method for processing the high-temperature alloy furnace tube is adopted to process a furnace tube of a hydrocarbon cracking furnace and the like, so that the compact and stable oxidized protective layer on the surface of the furnace tube, and the requirement for long-term use can be met; and the method can inhibit or retard the phenomena of catalysis and coking, reduces the carburization degree of the furnace tube, and prolongs the decoking cycle and the service life of the furnace tube.

The invention discloses a preparation method for an organic/inorganic hybridization cladding aluminum composite particle, which includes mixing leafing aluminum powder and solvent alcohol evenly to be transferred to a reactor to be stirred for a period of time, then adding alcoholic solution containing an organic silicon source and an inorganic silicon source at a constant speed and mixed solution of catalyst, water and alcohol, reacting for a period of time at the constant temperature, and finally filtering, washing and vacuum drying to obtain the organic/inorganic hybridization cladding aluminum composite particle. The organic/inorganic hybridization cladding aluminum composite particle has the following advantages of being capable of scattering in hydrosolvent and the alcohol solvent well and good in compatibility with resin, keeping good metal glossy, and simultaneously having good performance for resisting acid and alkaline corrosion. The organic/inorganic hybridization cladding aluminum composite particle can be used as environment-friendly metallic pigment for water-based paint.

A preparation method of a large-pore aluminum oxide with double-pore spread structure. First, aluminum oxide, a poreforming agent and solid silica are mixed, and receive ball-milling treatment in a ball milling machine; the mixture after treatment is kneaded into a plastic body by aqueous solution with cationic surfactant, extrusion aid, peptizator, etc. dissolved in, and put into the water vapor atmosphere to be treated; and the prepared mould is dried and baked, to obtain the final aluminum oxide carrier. The poreforming agent is one or the mixture of carbon black, cellulose and starch, and the loading is 3.0 to 15w percent of the weight of the aluminum oxide; the solid silica is silica aerogel, and the loading is 1.0 to 10w percent of the weight of the aluminum oxide; in the ball milling machine, the ball-material ratio is 15:1 to 10:1, and the ball milling time is 0.5 to 3.0h; the treatment temperature of the water vapor is 120 DEG C to 180 DEG C, and the treatment time is 0.5 to 6.0h. The aluminum oxide prepared by the invention has double-peak channel structure and high strength, and is applicable in fields of petrochemical, petroleum processing, environmental protection, etc.

The invention discloses a lithium ion battery anode and a preparation method thereof. The anode utilizes a carbon nano pipe film formed by a carbon nano pipe macroscopic pipe as a current collector, and an anode material layer is formed on the carbon nano pipe film. Compared with the traditional aluminum foil current collector anode, the lithium ion battery anode has the advantages that the weight of the lithium ion battery anode prepared by the method is light, and the anode material layer and the current collector are firmly combined. The preparation method comprises the following steps of preparing a high strength carbon nano pipe on a glass substrate by utilizing a carbon nano pipe macroscopic pipe continuum generated by a reactor port, generating the anode material layer on the carbon nano pipe film layer, separating the carbon nano pipe film layer with the anode material layer from and the glass substrate, and mounting a pole ear on a pole piece. Under the same size, the carbon nano pipe film is far lighter than the aluminum foil, the weight of the saved part can be replaced by the anode material, and the capacity of the battery is 15%-50% higher than that of a battery which takes the aluminum foil as an anode current collector. The lithium ion battery anode is low in cost, high in generation efficiency, simple in equipment, capable of realizing semicontinuous operation and suitable for mass production.

The invention discloses a preparation method of a high-performance anti-fingerprint agent. The preparation method comprises the following steps that firstly, allyl terminated perfluoropolyether reactswith a siloxane compound containing silicon-hydrogen bonds for obtaining a perfluoropolyether silane compound containing silicon-hydrogen bonds, the obtained product reacts with methyl vinyl dichlorosilane for obtaining perfluoropolyether-silane with dichlorosilane modified terminal groups, the obtained perfluoropolyether-silane with dichlorosilane modified terminal groups reacts with allyl magnesium bromide for obtaining terminal allyl modified perfluoropolyether-silane with polyfunctional groups, the obtained terminal allyl modified perfluoropolyether-silane with polyfunctional groups reacts with methyldichlorosilane for obtaining dichlorosilane modified perfluoropolyether-silane, dendritic terminal allyl modified perfluoropolyether-silane is obtained by repeated reaction; and then theobtained dendritic multi-functional perfluoropolyether-silane reacts with a siloxane compound containing silicon-hydrogen bonds for obtaining the dendritic perfluoropolyether alkoxy silane compound with polyfunctional groups. The anti-fingerprint agent prepared by the method provided by the invention has a good hydrophobic oleophobic property and excellent antifouling property, and has excellent bonding fastness to glass substrates, and the wear resistance and the durability are greatly improved.

A technology for manufacturing the antiwear bimetal tube by dual-liquid casting includes such steps as spraying graphite paint onto inner surface of a moulding pipe on centrifugal machine, baking, closing, high speed rotating while pouring molten steel, solidifying to become external steel tube, pouring molten antiwear alloy, solidifying, cooling and cleaning.

The present invention is nickel pre-coating process and nickel pre-coating solution for the surface of magnesium alloy. The technological process features that magnesium alloy is pre-treated through immersion coating of zinc and then nickel pre-coated, and may be used to replace traditional cyaniding copper pre-coating. The pre-treatment may be any of available zinc immersing processes. The pre-coating solution has nickel sulfate as main component and citrate as accessory ingredient. The present invention has great cathode current range and high current efficiency, and the obtained coating has compact structure, high adhesion and excellent anticorrosive performance.

The invention provides a shell distributed catalyst and an application thereof. The catalyst is prepared and obtained according to the following steps: soaking a carrier in a first solution containing assistant compounds, drying, and controlling the soaking condition and the type of the first solution to allow the assistant compounds to distribute on the carrier in a shell manner so as to obtain the carrier carrying the assistant compounds; soaking the carrier carrying the assistant compounds in a second solution containing active compounds, drying, and controlling the soaking condition and the type of the second solution to allow the active compounds to distribute on the carrier in the shell manner so as to obtain a catalyst carrying the assistant compounds and the active compounds. The catalyst provided by the invention is firm in homonuclear combination of shell, long-periodic stability of structural distribution can be kept, and the catalyst is applied to F-T synthetic reaction and is higher in activity and good in stability; the activity and structure of the catalyst remain unchanged basically after long-time operation.

A catalyst for catalytic combustion features that a coated composite oxide layer based on CeO2 is carried by cellular ceramic carrier. It contains the cellular cordierite ceramic matrix, coated composite oxide layer based on CeO2, and Pd. Its preparing process is also disclosed.

The invention provides a molecular sieve coating load manganese based composite oxide integrated catalyst with easy material acquisition, low preparation cost and firm combination of active constituents and carrier of catalyst, and a preparation method thereof for the defects that the noble metal catalyst has few noble metal resources, high price and high preparation cost. The catalyst provided by the invention is a cellular catalytic combustion catalyst, which comprises a molecular sieve coating, a manganese based composite oxide and a cellular carrier. The catalyst provided by the invention is prepared by the following steps of: uniformly mixing a precursor with the manganese based composite oxide, the molecular sieve and the water to obtain a grout with manganese based composite oxide precursor; soaking the cellular carrier into the grout with manganese based composite oxide precursor; and drying and baking to obtain the molecular sieve coating load manganese based composite oxide integrated catalyst.

The invention belongs to the technical field of vacuum coating, and especially relates to a winding evaporation type vacuum coating machine. The vacuum coating machine comprises a vacuum chamber, and a rolling evaporation system, a shielding system and a motor which are arranged in the vacuum chamber. An unwinding shaft is arranged at the top left corner of the vacuum chamber, a winding shaft is arranged at the top right angle of the vacuum chamber, a first evaporation coating drum and a second evaporation coating drum are arranged between the unwinding shaft and the winding shaft side by side, and are positioned below the unwinding shaft and the winding shaft. A first aluminum evaporator is positioned just below the first evaporation coating drum, and a second aluminum evaporator is positioned just below the second evaporation coating drum; and the shielding system is positioned at the bottom right corner of the vacuum chamber, the shielding steel band of the shielding system traverses between the second aluminum evaporator and the second evaporation coating drum, and the aluminum recovery device of the shielding system is arranged at the bottom right of the shielding system. Each of the winding evaporation system and the shielding system is connected with the motor. The vacuum coating machine has the advantages of one-time completion of the coating and edge thickening, long storage time, stable and unchanged performances, simple operation and production efficiency increase.

The invention relates to an in situ synthetic method of metalphthalein/carbon nanotube composite, which belongs to the field of the inorganic/organic nanometer composite material research. The invention solves the problems of metalphthalein/carbon nanotube composite prepared by physical blend method, including weak combination between phthalocyanine molecule and carbon nanotubes, and non-uniform distribution of the phthalocyanine molecule on the surface of the carbon nanotubes. The synthetic method includes adding the carbon nanotubes to the organic solvent, and ultrasonic dispersing for 10-40min to obtain the suspension; and mixing the precursor with metal-salt at a molar ratio of 3-8:1, adding to the suspension at a weight ratio of mixture to the carbon nanotubes of 3-11:1, stirring and reacting at 160-240 DEG C in the nitrogen protecting atmosphere for 1-6h, filtering the resultant, rinsing with he absolute ethanol until the filtrate is colorless, and vacuum drying at 50-100 DEG C for 5-30h to obtain the objective product. The phthalocyanine molecule and the carbon nanotubes are combined tightly, and the phthalocyanine molecule can uniformly grow on the external wall of the carbon nanotubes to form microcrystals.

This invention discloses a method for preparing silane coupling-prefilming agent before metal coating. The method comprises: adding deionized water 100 parts into a container, stirring at a speed of 2000-2200 rpm, and adding a first reinforcer, stabilizer, a second reinforcer, silane coupling agent and dispersing agent to obtain silane coupling-prefilming agent before metal coating. The ultrathin organic film thus formed can be used to replace traditional phosphating film, and the weight in unit area is only 5% of phosphating film, thus has a low cost. The Si-O-Me covalent bonding is strong, thus the product is stable, and has improved corrosion resistance. The silane coupling-prefilming agent is easy to apply, and the preparation process only needs to control the pH value and the electrical conductivity. The environmental pollution is little. The prefilming treatment does not need to modify the previous apparatus.

The present invention relates to a negative ion anti-bacterial hollow carbon fibre and its preparation method. It includes (by weight ratio) 5-13 portions of tourmaline, 0.6-4 portions of Ag anti-bactrial agent, 15-25 portions of Ti (OC5H11)4 and 100 portions of hollow active carbon. Its preparation method includes the following steps: using hollow active carbon as carrier, adopting vacuum repeated impregnation process to make the micro-size tourmaline powder be fed into central pore of hollow active carbon fibre, and utilizing the combination of vacuum repeated impregnation and sol-gel to make the surface of hollow active carbon fibre be coated with nano-size silver series anti-bacterial agent and nano-size TiO2 series anti-bacterial agent. The number of negative ions released by the invented hollow active carbon fibre can be up to 2200-2250/cu cm. For Escherichia coli the diameter the diameter of its bacteriostatic ring can be up to 22 mm, and for staphylococcus aureus the diameter of its bacteriostatic ring can be up to 21.5 mm.

The invention discloses an infrared radiation reinforced composite ceramic fiber board. The composite ceramic fiber board is formed by compounding an aluminium silicate-based ceramic fiber board layer and a high infrared emittance layer, wherein the thickness of the high infrared emittance layer is 0.1-2mm, and bulges in periodic array distribution are arranged on the surface of the high infrared emittance layer. A method for preparing the infrared radiation reinforced composite ceramic fiber board disclosed by the invention comprises the steps that powder and gel materials are respectively prepared at first, then a wet preform body of the high infrared emittance layer with the periodic array structures on the surface is made by mixing the powder and the gel materials, finally, the surface of the ceramic fiber board is painted and covered with a glue stock and then the ceramic fiber board is reversed on the wet preform body, and the product is prepared after heating and pressuring. The infrared radiation reinforced composite ceramic fiber board disclosed by the invention has the advantages of being high in strength, firm in combination between the high infrared emittance layer and the aluminium silicate ceramic fiber board layer and capable of working at the temperature above 1100 DEG C for a long time, and having the hemispherical total emittance up to 0.91 at 800 DEG C and the comprehensive energy-saving efficiency above 10%.

The invention discloses a method for preparation and regulation of a surface-roughness ZnO nano-cone or nanorod array. The method comprises the following steps that: (1) a substrate is selected and cleaned; (2) a magnetic-control sputtering apparatus performs sputtering at a normal temperature on the substrate to form a compact ZnO seeding layer with good crystallinity; (3) the ZnO nano-cone or nanorod array grows on the substrate with a hydrothermal method; and different acid or alkali corrosive liquids are chosen, and the concentration and corrosion time of the corrosive liquids are adjusted to form a surface-roughness nanometer structure with different corrosion degrees. According to the invention, the simple method is adopted for manufacturing the complicated nanometer structure, the range of appearance regulation is large, the operation is simple, the regulation and control are easy, the repeatability is good, the surface roughness of a nano-cone or nanorod can be regulated effectively, the specific surface area is enlarged, and the properties such as surface activity are improved, so that the method is greatly beneficial to improving transducer sensitivity more effectively and enhancing photocatalysis efficiency as well as light extraction efficiency of an LED (light-emitting diode).

The invention provides a coloring agent used for nylon shell fabric. The coloring agent consists of the following components in parts by weight: 5-8 parts of hydroxyethyl methylacrylate, 2-3 parts of zinc stearate, 2-3 parts of dibutyl phthalate, 1-2 parts of triglyceride, 2-3 parts of styrene, 1.2-1.5 parts of sodium persulfate, 0.2-0.5 part of propylene glycol, 0.5-0.8 part of acetic acid vinyl ester, 0.4-0.6 part of sodium acetate and 100-110 parts of distilled water. The coloring agent provided by the invention is simple in preparation method; after the coloring agent provided by the invention is applied for coloring, the soaping fastness of the nylon shell fabric is 4-5 level, the coloring agent is firmly combined, the K/S value is 8.794-9.037, and the coloring performance is good.

The invention relates to a portable laminate solar battery, and relative production. Wherein, said battery comprises upper, middle and lower layers; the upper and lower layers are laminated or/and macromolecule films, while at least one layer contains macromolecule film; the middle layer is packed unit battery plate; it uses fused film to prepare laminate macromolecule film composite layer; the part of composite layer relative to the lighted part of unit battery plate has holes; the circumference of middle layer has holes; the unit battery plate is connected by wires; layering lower, middle and upper layers on laminate compressor, to expose the lighted part; using thermal-insulated material to plaster the lighted part of middle layer; at the folded part, arranging narrow rigid object or holing the film; compressing it in compressor; cooling and furnishing edge.

The invention relates to an antisepsis conductive coating combination that contains vinyl ester resin 100 portions, conductive particle 5-70 portions, peroxide curing agent 1-10 portions, accelerant 0.5-10 portions, and styrene 0-20 portions. It has low cost for antisepsis and is easy to construct.

The invention discloses a preparing method of tin-nickel-carbon composite cathode material of a lithium ion battery, which belongs to the technical field of lithium ion batteries. The tin-nickel-carbon composite cathode material is prepared through electrodeposition process; the electrodeposition process comprises the following processes: I. conducting graphite powder, surface chemical modification treatment for the graphite powder, pyrophosphate alloy bath adding and ultrasonic dispersion for the pyrophosphate alloy bath containing the graphite powder; II. conducting copper foil current collector and activating treatment; and III. by taking the copper foil current collector obtained in the process II as a cathode, taking a hard graphite plate as a cathode and taking bath obtained in the process I as an electrolyte, performing electrodeposition film coating, to obtain a composite deposited finally. Compared with the prior art, the preparing method adopting electrodeposition to prepare the tin-nickel-carbon composite cathode material has the characteristics of low cost, simple preparing process, excellent electrochemical performance, long service life and the like.

The invention belongs to the field of surface treatment technologies, and particularly relates to a method for preparing a micro-arc oxidation film with a photocatalysis function. The method comprises steps of performing pretreatment, water scrubbing, configuration of micro-arc oxidation tank liquor, micro-arc oxidation, water scrubbing and the like on a matrix. By adopting the method, the film with the photocatalysis function can be directly prepared on the surface of a light alloy through a micro-arc oxidization method. The method has simple technologies, and avoids complex pretreatment and aftertreatment processes. The prepared film can be firmly combined with the matrix and has the photocatalysis function.

The invention discloses a method used for modifying collagen with an epoxy quaternary ammonium salt. The method is characterized in that: quaternary ammonium salt type collagen is prepared by reacting the epoxy quaternary ammonium salt with collagen, so that hydrophilcity of collagen is improved, and collagen will possess a certain degree of antibacterial properties. The method comprises following steps: collagen and the epoxy quaternary ammonium salt are reacted for 1 to 24h at a temperature of 0 to 45 DEG C according to a certain ratio, and then the mixture is washed with water; 0.1 to 2 weight portions of an amino acid is added for 0.5 to 1h of reaction at a temperature of 0 to 45 DEG C, and then the product is washed with water; 0.5 to 3.5 weight portions of an acid or an acid salt is added so as to adjust the pH value to 6.5 to 7.5; and finally 100 to 500 weight portions of water is added, and the final product is washed with water at a temperature of 0 to 45 DEG C for 10 to 30min, and the procedure is repeated for 5 times.

The invention discloses a method for modifying a current collector of a lithium ion battery with a conductive metal ceramic. The method comprises the following steps: S1, mixing conductive metal ceramic powder, a film-forming assistant and a bonder as raw materials with water as a dispersant to obtain conductive metal ceramic slurry A; S2, performing spray-drying on the slurry A to prepare conductive metal ceramic powder B with uniform particle size; S3, ultrasonically cleaning the positive or negative current collector by acetone, ethanol and de-ionized water respectively; S4, uniformly spraying the conductive metal ceramic powder B as a raw material onto the surface of the cleaned positive or negative current collector subjected to cleaning in the step S3 by an atmospheric plasma spraying technology to form a conductive metal ceramic coating C on the surface of the positive or negative current collector.

The invention relates to an inclined helical photocatalysis compound filling material for micro pollution raw material pretreatment, which consists of polypropylene and nanometer TiO2, wherein the mass percentage of nanometer TiO2 is 8 percent to 10 percent. The invention also relates to a preparation method of the photocatalysis compound filling material, which comprises the following steps that: TiO2 is pretreated through titanate coupling agents; and the polypropylene and the pretreated TiO2 are uniformly mixed and are co-extruded and formed on a double-screw extruding machine. The photocatalysis compound filling material has the characteristics that the flowability is high, the specific surface area is large, the TiO2 combination degree is high, the photocatalysis efficiency is higher, the use period is long, the blockage is avoided, the operation is simple and convenient, and the like.

The disclosed seal structure for improving tightness and security includes a metal tank body and an upper cover. The upper cover is welded onto the metal tank body combined as an integrated body. A hole for injecting electrolyte is setup on the upper cover. A sealing element is inserted and plugged onto the said hole, and the sealing element welded onto the upper cover is combined as an integrated body. The sealing element and injection hole can form screw thread couple further in order to reinforce tightness and bonding strength. The seal structure guarantees favorable tightness for injection hole. Moreover, the sealing element can support larger pressure, prevent weld from breakage so as to raise security.

The invention relates to a moisture-cured epoxy asphalt anticorrosive paint and a preparation method thereof. The moisture-cured epoxy asphalt anticorrosive paint is composed of a constituent A and a constituent B in a weight percent ratio of (2 to 5): (3 to 1), wherein the constituent A comprises the following raw materials in percentage by weight: 9-12% of a solvent, 1-2.5% of a thickener, 0.8-1.2% of a dispersant, 5-7% of a flexibilizer, 33-37% of epoxy resin, 19-30% of coal tar pitch, 9-16% of an anti-rust pigment and 9-12% of talcum powder. The invention further discloses a method for preparing the paint. The paint and the method disclosed by the invention has the beneficial effects that normal construction can still be carried out when an environment humidity is higher than 85%, and the step of lowering the environment humidity by a dehumidifier during a construction process is omitted, thus greatly saving energies, decreasing construction cost and increasing working efficiency.

The invention provides a hydrophilic modification method of an ultrafiltration membrane, which can carry out hydrophilic modification on an ultrafiltration multiaperture separation membrane. According to the method, the method of air pressure deposition is employed to deposit hydrophilic macromolecule poval or polyvinylpyrrolidone on the surface of an ultrafiltration multiaperture basement membrane and at the inner walls of membrane pores in a uniform quantitation mode; after the immobilized treatment carried out, a polymer hydrophilic layer deposited on the surface of the basement membrane can greatly improve the hydrophily of the basement membrane; and meanwhile, the polymer macromolecules deposited on the inner surface of the membrane pores can mend defects of macropores of the basement membrane while strengthening the bonding strength of the basement membrane and the polymer hydrophilic layer. The modified hydrophilic ultrafiltration membrane of the invention can be applied to various separation processes.

The invention provides a workpiece with a diamond/a graphene composite lubricating film. The workpiece comprises a workpiece body and a diamond/a graphene composite lubricating film arranged on the surface of the workpiece body, wherein the diamond/graphene composite lubricating film comprises an ultra-nano diamond film arranged on the surface of the workpiece body and a graphene layer is arrangedon the ultra-nano diamond thin film; and the diamond/graphene composite lubricating film can obviously improve the friction resistance of the workpiece. The invention further provides a preparation method of the workpiece with the diamond/the graphene composite lubricating film. The preparation method comprises the following steps that the ultra-nano diamond thin film is deposited on the workpiece body, and then a transition metal layer is deposited on the surface of the ultra-nano diamond thin film; the workpiece body deposited with the transition metal layer and the ultra-nano diamond filmis placed in a cavity of a hot wire vapor deposition chamber for annealing treatment, the diamond/graphene composite lubricating film is manufactured on the surface of the workpiece body, the annealing temperature is 1000-1300 DEG C, and the annealing time is 1-3 minutes

The invention discloses a preparation method of a ceramic. The preparation method of the ceramic comprises the following steps: mixing a ceramic substrate, a sintering aid and a monomer carbon to obtain a mixture; shaping, deguming and sintering, wherein based on the total weight of the mixture, the monomer carbon accounts for 0.001-1wt%. Furthermore, the invention provides the ceramic prepared by the method, a method for surface selective metalization of the ceramic and a prepared ceramic composite material. The carbon element in the ceramic material provided by the invention can improve the light absorption of the general white ceramic material on the energy beam of a low-power laser device, so that the ceramic material can be directly graphically etched and activated by the low-power laser, then the material is coated in a chemical plating solution, and the coating layer metal is firmly combined with the ceramic material; and the method is simple and easy to control.

The invention relates to a preparation method of a high-performance sintered Nd-Fe-B permanent magnet material, belonging to the field of rare earth permanent magnet material. The quaternary and abovequaternary rare earth alloy films are deposited on the surface of pretreated Nd-Fe-B magnet by magnetron sputtering. The homogenization, grain boundary diffusion and low temperature tempering are used as diffusion sources to improve the boundary structure of the magnet, so that the coercivity of the magnet is greatly increased and the remanence is kept basically unchanged. The composition of thequaternary and above quaternary rare earth alloy film is LRE 100-X-Y-ZHRExMyAlz (1 <= x <= 40, 1 <= y <= 20, 1 <= z <= 20), wherein LRE is one or more of the light rare earth elements such as Y, La, Ce, Pr, Nd, HRE is one or more of the heavy rare earth elements such as Tb, Dy, Ho, and M is one or more of the alloy elements such as Cu, Fe, Co, Ga, Zr, Zn, Mn, and Mg. The rare earth alloy thin filmprepared by the invention is uniform, compact and strong in adhesion as diffusion source, the quantity is continuously controllable, and the consistency of magnetic properties of the magnet after diffusion treatment is good; It can reduce the amount of rare earth and is suitable for industrial production.