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475results about How to "Strong combination" patented technology

Method for processing high-temperature alloy furnace tube

ActiveCN101565807AStrong combinationMitigation of catalytic cokingSolid state diffusion coatingProduct gasMetallurgy
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.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Lithium ion battery anode and preparation method thereof

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.
Owner:北京旭江科技有限公司

Preparation method of high-performance anti-fingerprint agent

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.
Owner:QUZHOU FLUORIDE & SILICON RES INST

Nano titanic oxide impregnation preparation method using shell powder as carrier

The invention discloses an impregnation preparation method of nanometer titanium oxide which takes shell powder as a carrier, and in particular relates to a reproducible porous nanometer titanium oxide powder which takes the shell powder as the carrier and the preparation method thereof. In the method, titanium oxide is loaded on a shell powder carrier by impregnation; firstly, alkoxide solution of titanium ester or titanium with appropriate concentration is prepared, then an activated shell powder carrier with certain proportion is impregnated in the alkoxide solution, then the obtained solution is stirred and stayed for a certain time, and treated by low temperature and abstersion pretreatment and finally roasted at high temperature, so the nanometer TiO2 forms high-strength bond with the shell powder and promotes the catalytic activity of the nanometer TiO2 at the same time. Impregnation can be conducted for a plurality of times to increase load. The nanometer TiO2 is characterized by small particle size, good compatibility with materials, high catalytic efficiency, good stability, good regenerability, and the like, and can be applied to the fields of plastics, rubbers, fibers, coatings, home electronic appliances, paints, ceramics, water and environmental manipulation, pharmaceutical and hygienic articles, etc. In terms of sources of raw materials and production technology, the preparation method not only reduces the production cost of the nanometer TiO2 catalyst but also is helpful for disposal of the increasingly serious environmental problems, thus bearing great environmental protection significance.
Owner:GUANGDONG OCEAN UNIVERSITY

Multifunctional ball-milling device capable of manufacturing nanopowder or slurry efficiently and manufacturing process of multifunctional ball-milling device

InactiveCN105921222ANanoization speed increasedImprove particle size distributionGrain treatmentsMicrowaveHigh energy
The invention discloses a multifunctional ball-milling device capable of manufacturing nanopowder or slurry efficiently and a manufacturing process of the multifunctional ball-milling device. The high-energy ball-milling device comprises a motor, a grinding cylinder, functional auxiliary assemblies, a circulating cooling device, a protecting atmosphere assembly and a support. The grinding cylinder comprises a stirring rod, grinding discs, a material and grinding medium feeding opening, a filtering and separating device and a discharging opening. The circulating cooling device is arranged on the grinding cylinder and comprises a circulating cooling jacket, a cooling liquid inlet and a cooling liquid outlet. The functional auxiliary assemblies are at least one of a microwave generation device, an ultrasonic generator, a discharging device and a magnetic field generation device. The protecting atmosphere assembly is arranged on the grinding cylinder and comprises a protecting gas inlet, a protecting gas outlet and vacuumizing equipment. The functional auxiliary assemblies have the functions and beneficial effects of microwaves, ultrasound, discharging, magnetic fields, temperature fields and the like, so that the device meets the requirements on different conditions, and the operability of the device is improved.
Owner:FUJIAN XFH NEW ENERGY MATERIALS CO LTD

Winding evaporation type vacuum coating machine

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.
Owner:郑州华翔电子信息技术有限公司

Infrared radiation reinforced composite ceramic fiber board and preparation method

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%.
Owner:重庆埃泰克能源科技有限公司 +1

Method for preparation and regulation of surface-roughness ZnO nano-cone or nanorod array

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).
Owner:SHANDONG UNIV

Compound microbial inoculant for degrading COD (chemical oxygen demand) and preparation method of compound microbial inoculant

InactiveCN104894033AImprove adaptabilitySolve the problems of high cost of treatment process and unsatisfactory COD removal rateFungiBacteriaBacillus licheniformisCandida tropicalis
The invention discloses a compound microbial inoculant for degrading chemical oxygen demand and a preparation method of the compound microbial inoculant. The compound microbial inoculant comprises, by volume, 9-11% of candida tropicalis, 9-11% of candida parapsilosis, 28-32% of bacillus subtilis, 28-32% of bacillus licheniformis and 19-21% of enterococcus faecalis lactobacillus. The preparation method of the compound microbial inoculant includes that the candida tropicalis, the candida parapsilosis, the bacillus subtilis, the bacillus licheniformis and the enterococcus faecalis lactobacillus are respectively inoculated and cultured in sewage culturing media to obtain respective bacterium solutions, and the bacterium solutions are mixed according to the volume ratio to obtain the compound microbial inoculant, wherein the sewage culturing media are abundant in organic matter after being sterilized. The compound microbial inoculant is high in environment adaptability, applicable to microbial enhanced sewage treatment in different areas and various sewage including aquaculture sewage, domestic sewage, landfill leachate and the like which are abundant in organic matter, and capable of removing 95% of the COD in sewage.
Owner:湖北凌卓生物工程有限公司
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