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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 33. Отображено 33.
08-04-2015 дата публикации

Preparation method of matrix with high-temperature-resistant hydrophobic conductive coating

Номер: CN104496547A
Автор: ZHANG LINGJIE, YANG HUI, JIANG QIUPING, ZHANG JI, SHEN TAO, WU CHUNCHUN, HUA HUAIOU
Принадлежит:

The invention relates to the technical field of conductive coatings and aims at providing a preparation method of a matrix with a high-temperature-resistant hydrophobic conductive coating. The method comprises the steps of spraying aluminum oxide sol composite slurry on the surface of a matrix by using a spraying method to form a matrix with a coating; and carrying out heat treatment on the matrix with the coating in a 600-DEG C high-temperature furnace for 40 minutes, and then, cleaning the surface of the matrix with deionized water to obtain the matrix with the high-temperature-resistant hydrophobic conductive coating. The preparation method disclosed by the invention is simple in process; raw materials are relatively low in cost and available; and the large-scale industrial production is easily realized. The matrix with the high-temperature-resistant hydrophobic conductive coating, prepared by using the preparation method, has the characteristics of high temperature resistance, hydrophobicity ...

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Номер записи: 1
08-04-2015 дата публикации

Preparation method for nanometer modified resin composite paint used for LED base plate

Номер: CN104497785A
Автор: YANG HUI, WU CHUNCHUN, ZHANG LINGJIE, QUE YONGSHENG, WANG HAIFENG, QIAN XIAO
Принадлежит:

The invention relates to paint technologies, and aims at providing a preparation method for nanometer modified resin composite paint used for an LED base plate. The method comprises: uniformly dispersing nanometer alpha-Al2O3 and butanol; then adding a silane coupling agent KH560, and ageing, so as to obtain a modified nanometer alpha-Al2O3 sol, and performing concentration distillation; and dispersing the concentrated alpha-Al2O3 sol, an epoxy resin monomer, 2-butanone, xylene and 2,2,4-trimethyl-1,3-pentanediolmono(2-methylpropanoate) for 1 h, so as to obtain the paint. By introducing alpha-Al2O3 nano-particle into a conventional epoxy resin coating, the heat conductivity of resin is improved, also the excellent coating performance and the workability of resin are maximumly kept, and the price is relatively appropriate. At present, the technological route of coating an aluminium base plate with a resin coating is extremely mature, and the prepared nanometer modified resin composite paint ...

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Номер записи: 2
26-05-2023 дата публикации

Bonding welding device and pressure welding equipment comprising same

Номер: CN116160105A
Автор: CHEN WEN, ZHENG LINWEI, WU CHUNCHUN, WANG ZHELAI, XIA WANGTAO
Принадлежит:

The invention discloses a bonding and welding device and pressure welding equipment comprising the bonding and welding device, the bonding and welding device comprises a machine body, a wire clamp assembly and a linkage mechanism, the linkage mechanism swings up and down in the height direction of the machine body, the wire clamp assembly comprises a lifting driving assembly and a wire clamp part, and the lifting driving assembly is arranged on the machine body; one end of the wire clamp part and the vertical degree of freedom of the lifting driving assembly are restrained, and the other end of the wire clamp part is movably connected with the second end of the linkage mechanism. The wire clamp assembly and the linkage mechanism can be independently arranged and do not interfere with each other, and the problems of low welding precision, low yield and the like caused by shaking of the linkage mechanism due to shaking of the wire clamp assembly are solved; the wire clamp part adopts a swinging ...

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Номер записи: 3
02-05-2023 дата публикации

Polyethylene polyamine ammonium salt ionic liquid as well as preparation method and application thereof

Номер: CN116041190A
Автор: WANG ZHIYUAN, YU SHUNMING, CHENG SHUANGCHENG, WU CHUNCHUN, WANG YU, A RUHAN, LI HONGJI
Принадлежит:

The invention discloses polyethylene polyamine type ammonium salt ionic liquid as well as a preparation method and application thereof. The polyethylene polyamine type ammonium salt ionic liquid is prepared from polyethylene polyamine and corresponding protonic acid, anions in ammonium salt come from the protonic acid and are one or more anions selected from HSO4 <->, HSO4 (H2SO4) <->, HSO4 (H2SO4) < 2->, CF3SO3 <->, CH3SO3 <-> and R '-C6H4SO3 <->, R' is H or alkyl, and R 'is H or alkyl. Positive ions in the ammonium salt ionic liquid come from ammonium positive ions formed by polyethylene polyamine, and in the ammonium salt ionic liquid, the molar ratio of nitrogen atoms to protonic acid is 1: (1-3); the polyethylene polyamine comprises more than two polyethyleneimine oligomers, and the amine value or the nitrogen content of the polyethylene polyamine is 10-50wt%. The conversion rate of the synthesized ionic liquid substrate can reach more than 90%.

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Номер записи: 4
05-03-2014 дата публикации

Preparation method of anti-pollution flashover self-cleaning paint for glass insulator

Номер: CN103614044A
Автор: SHEN QIANHONG, WU CHUNCHUN, ZHANG QILONG, YANG HUI, WANG HAIFENG, CHENG DI
Принадлежит:

The invention relates to the field of paint and aims to provide a preparation method of anti-pollution flashover self-cleaning paint for a glass insulator. The method comprises the steps of: A. adding tetrabutyl titanate and tetraethyl orthosilicate into ethylene glycol, stirring at room temperature in an airtight environment, then pouring in acetone and fiercely stirring, then aging, and filtering to obtain precipitate, rinsing the precipitate, and dispersing into deionized water; then stirring in a 80 DEG C water bath, then filtering the precipitate, and drying to obtain silicon-titanium composite microspheres with nano rough surface structures; B. dispersing the silicon-titanium composite microspheres into ethanol water solution to form silicon-titanium composite microsphere dispersion solution, then adding nano oxide particles and a silane coupling agent, regulating the pH value to be 3, and reacting under the water bath condition; finally adding organosilicone-modified fluororesin, ...

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Номер записи: 5
04-07-2012 дата публикации

Method for preparing organic-inorganic composite sol used for preventing corrosion on surface of metal aluminum plate

Номер: CN0102134411B
Автор: WU CHUNCHUN, YANG HUI, SHEN QIANHONG, CHUNCHUN WU, HUI YANG, QIANHONG SHEN
Принадлежит:

The invention relates to the preparation of sol and aims to provide a method for preparing organic-inorganic composite sol used for preventing corrosion on the surface of a metal aluminum plate, which comprises: adding at least one of methyl silicate and ethyl silicate into saturated alcohol solution of ammonia with stirring; adding water and reacting at 60 DEG C; adding Al(OH)3 sol with stirring, and aging at 50 DEG C for 24 hours; mixing zinc salt containing bivalent zinc ions and acid to prepare a double-component catalyst and adding the double-component catalyst with stirring to regulate the pH value to 1 to 5; and adding organosiloxane into the sol after stirring for reaction and thus, obtaining the composite sol suitable for prevention corrosion of the metal aluminum plate. In the invention, the adhesion force between the coating and the metal aluminum plate is increased, and a foundation is laid for the hardness and flexibility of the coating; and the reaction product form a linear ...

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Номер записи: 6
08-04-2015 дата публикации

Aluminum oxide sol composite slurry

Номер: CN104497645A
Автор: YANG HUI, ZHANG LINGJIE, WU CHUNCHUN, SHEN TAO, ZHANG JI, JIANG QIUPING, QIAN XIAO
Принадлежит:

The invention relates to the technical field of conductive coatings and aims at providing aluminum oxide sol composite slurry. The aluminum oxide sol composite slurry is prepared by mixing the following raw materials in percentage by weight: 20-50% of nanometer tin dioxide, 30-60% of nanometer aluminum oxide sol, 5-10% of nanometer silver powder, 10-30% of nanometer copper powder and 0.5-2% of a dispersing agent, wherein the mass concentration of the nanometer aluminum oxide sol is 20-25%. A preparation process disclosed by the invention is simple; raw materials are relatively low in cost and available; and the large-scale industrial production is easily realized. A coating product prepared from the aluminum oxide sol composite slurry has the characteristics of high temperature resistance, hydrophobicity, high conductivity and pollution resistance.

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Номер записи: 7
22-08-2023 дата публикации

Efficiency evaluation method for wafer-level chip system

Номер: CN116629713A
Автор: LI JIATONG, CHEN XIANGYU, WU CHUNCHUN, LIU JIAXING, WANG SHICHENG, HU HUAIXIANG, WU YANG, FAN SHAN, YANG YILI
Принадлежит:

The invention relates to an efficiency evaluation method and device of a wafer-level chip system, electronic equipment and a storage medium. The method comprises the steps that a wafer level chip system is analyzed, a wafer level chip system evaluation index set is constructed, and the wafer level chip system evaluation index set comprises wafer level chip system evaluation indexes; constructing a wafer-level chip system weight system, and establishing an efficiency evaluation model of the wafer-level chip system based on the wafer-level chip system weight system; and taking the parameter index value corresponding to the wafer-level chip system evaluation index set as an input, and completing the efficiency evaluation of the wafer-level chip system based on the efficiency evaluation model of the wafer-level chip system. According to the wafer level chip system performance evaluation method and device, the performance evaluation model of the wafer level chip system is established by constructing ...

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Номер записи: 8
06-07-2005 дата публикации

Process for preparing battery cathode inhibitor

Номер: CN0001635179A
Автор: WU CHUNCHUN, YI XIANGWU, CHUNCHUN WU, XIANGWU YI
Принадлежит:

The invention relates to a formulating method of alkaline zinc-manganese dry cell negative pole inhibitor which comprises at least maltonic acid, acetic acid and ethanol; formulating method of the inhibitor comprises: mixing and stirring 90% sodium-hydroxide,2~5% gluconic acid and 2~5% acetic acid for preparing agent A; mixing and stirring 6% agent A, 5% water and 89% ethanol for preparing inhibitor with the ratio below 0.5 in the negative pole calamine cream. Before using, the inhibitor needs to be stored at least 24 hours; stirring and processing the inhibitor and hydrargyrum-less zinc powder for preparing calamine cream, putting the calamine cream into the negative pole of cell, and manufacturing the cells by traditional method. The invention solved the problems of poor discharge performance in heavy current and leakiness of cells made by existing technology, and can improve the heavy current storage and discharge performance and leak resistance of cells effectively.

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Номер записи: 9
10-02-2016 дата публикации

Layer structure is scribbled with a type ceramic link plate to easily clean outer wall

Номер: CN0205025032U
Автор: WU CHUNCHUN, QUE YONGSHENG, WANG HAIFENG, YANG HUI, ZHANG JI
Принадлежит:

The utility model relates to a layer structure is scribbled with a type ceramic link plate to the outer wall, aims at providing a layer structure is scribbled with a type ceramic link plate to easily clean outer wall. Should scribble the layer structure includes stainless steel basement, priming paint layer and hydrophobic clear finish layer, the spraying of priming paint layer is on the surface of stainless steel basement, hydrophobic clear finish layer covers on the priming paint layer. Should scribble the layer structure and adopt the compound inorganic coating of nanometer to replace a ceramic powder preparation type ceramic link plate, link plate hardness and heat -resisting, the weatherability is all suitable with ceramic link plate, but the thermal treatment thermal drop of coating is 150 DEG C, is less than the thermal treatment problem of former ceramic link plate more than 300 DEG C by a wide margin, the coating has increased transparent hydrophobous finish paint simultaneously ...

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Номер записи: 10
25-07-2023 дата публикации

High-performance satellite-borne computing cluster network

Номер: CN116489067A
Автор: LIU JIAXING, CHEN XIANGYU, WANG SHICHENG, TANG HAI, XU SHUAI, JI JING, WU CHUNCHUN, LI JIATONG, CHEN YUPING
Принадлежит:

A high-performance satellite-borne computing cluster network is characterized in that computing units are connected through a network link control module to form a bidirectional ring network, and the network link control module forwards data to adjacent network ports only through a fixed path without analyzing network packets. The module is realized by adopting an aerospace-level FPGA (Field Programmable Gate Array) chip. According to the invention, no switch and router equipment are used in the networking process, but the routing function is endowed to the computing unit by using the IP forwarding and dynamic routing technology, so that the non-switching routing service is realized, the risk that the reliability of the whole computing system is reduced due to poor reliability of switching equipment is avoided, and the reliability of the computing system is improved. And meanwhile, the cost of satellite construction is also greatly reduced.

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Номер записи: 11
06-06-2012 дата публикации

Preparation method of organic-inorganic composite collosol for the surface corrosion prevention of metal aluminum sheet

Номер: CN0101805531B
Автор: SHEN QIANHONG, SHENG JIANSONG, WU CHUNCHUN, YANG HUI, ZHOU JIAN, QIANHONG SHEN, JIANSONG SHENG, CHUNCHUN WU, HUI YANG, JIAN ZHOU
Принадлежит:

The invention relates to a preparation of collosol, aiming at providing a preparation method of organic-inorganic composite collosol for the surface corrosion prevention of the metal aluminum sheet. The method comprises the following steps: adding the tetramethoxysilane or the tetraethoxysilane into the saturated alcohol solvent of ammonia under the condition of stirring, then adding water for reaction, then performing the rotary evaporation to remove part of the solvent, and obtaining the particle type nano silica collosol; adding the Al(OH)3 collosol into the particle type nano silica collosol, aging for 24h under 50 DEG C to prepare the composite silica collosol in-situ modified and coated by Al(OH)3 collosol; adding a catalyst into the composite silica collosol under stirring, stirring and adding the organo-siloxane drop by drop for reaction, and then obtaining the organic-inorganic composite collosol suitable for the surface corrosion prevention of the metal aluminum sheet. Due to ...

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Номер записи: 12
08-04-2015 дата публикации

Preparation method for hydrophobic nanometer modified resin composite paint used for LED base plate

Номер: CN104497784A
Автор: YANG HUI, WU CHUNCHUN, ZHANG LINGJIE, QUE YONGSHENG, WANG HAIFENG, QIAN XIAO
Принадлежит:

The invention relates to preparation of paint, and aims at providing a preparation method for hydrophobic nanometer modified resin composite paint used for an LED base plate. The method comprises: firstly uniformly dispersing nanometer alpha-Al2O3 and butanol; then adding a silane coupling agent KH560 and ageing, so as to obtain a modified alpha-Al2O3 sol, and performing concentration distillation; uniformly mixing 1H,1H,2H,2H-perfluorooctyltriethoxysilane, n-butanol and formic acid, then adding deionized water, and ageing to obtain a silicon fluoride oligomer sol; and dispersing the former two products, an epoxy resin monomer, 2-butanone, xylene and 2,2,4-trimethyl-1,3-pentanediolmono(2-methylpropanoate), so as to obtain the paint. By introducing alpha-Al2O3 nano-particle into a conventional epoxy resin coating, the heat conductivity of resin is improved, also the excellent coating property and the workability of resin are maximumly kept, and the price is relatively appropriate. The hydrophobicity ...

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Номер записи: 13
16-05-2023 дата публикации

Polyethyleneimine type ammonium salt ionic liquid as well as preparation method and application thereof

Номер: CN116120548A
Автор: WANG ZHIYUAN, YU SHUNMING, CHENG SHUANGCHENG, WU CHUNCHUN, WANG YU, A RUHAN, LI HONGJI
Принадлежит:

The invention discloses a polyethyleneimine type ammonium salt ionic liquid, the ammonium salt ionic liquid is prepared from polyethyleneimine and corresponding protonic acid, anions in ammonium salt come from anions in the protonic acid and are one of anions selected from HSO4 <->, HSO4 (H2SO4) <->, HSO4 (H2SO4) < 2->, CF3SO3 <->, CH3SO3 <-> and R '-C6H4SO3 <->, R' is alkyl; cations in the ammonium salt ionic liquid come from ammonium cations formed by polyethyleneimine, and in the ammonium salt ionic liquid, the molar ratio of nitrogen atoms to protonic acid is 1: (1-3). The ionic liquid prepared by the method shows higher catalytic activity in an acid catalytic reaction, the conversion rate of the synthesized ionic liquid can reach 90% or above when the ionic liquid catalyzes an aromatic hydrocarbon nitration reaction, and a mononitro product is generated.

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Номер записи: 14
18-08-2010 дата публикации

Preparation method of organic-inorganic composite collosol for the surface corrosion prevention of metal aluminum sheet

Номер: CN0101805531A
Автор: SHEN QIANHONG, SHENG JIANSONG, WU CHUNCHUN, YANG HUI, ZHOU JIAN, QIANHONG SHEN, JIANSONG SHENG, CHUNCHUN WU, HUI YANG, JIAN ZHOU
Принадлежит:

The invention relates to a preparation of collosol, aiming at providing a preparation method of organic-inorganic composite collosol for the surface corrosion prevention of the metal aluminum sheet. The method comprises the following steps: adding the tetramethoxysilane or the tetraethoxysilane into the saturated alcohol solvent of ammonia under the condition of stirring, then adding water for reaction, then performing the rotary evaporation to remove part of the solvent, and obtaining the particle type nano silica collosol; adding the Al(OH)3 collosol into the particle type nano silica collosol, aging for 24h under 50 DEG C to prepare the composite silica collosol in-situ modified and coated by Al(OH)3 collosol; adding a catalyst into the composite silica collosol under stirring, stirring and adding the organo-siloxane drop by drop for reaction, and then obtaining the organic-inorganic composite collosol suitable for the surface corrosion prevention of the metal aluminum sheet. Due to ...

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Номер записи: 15
08-04-2015 дата публикации

Preparation method for antistatic sol used for used for hardening optical plastic surfaces

Номер: CN104497643A
Автор: WU CHUNCHUN, ZHANG LINGJIE, YANG HUI, QUE YONGSHENG, WANG HAIFENG, HUA HUAIOU
Принадлежит:

The invention relates to preparation of sols, and aims at providing a preparation method for an antistatic sol used for used for hardening optical plastic surfaces. The method comprises: uniformly mixing tetraethyl orthosilicate, trimethoxy(methyl)silane, absolute ethanol and isopropanol with stirring; adjusting the hydrogen ion concentration of the system adding deionized water and ageing; and then adding PEDT nano-particle sol, and stirring, so as to obtain the sol. The sol with both hardening and electrostatic resistant functions is prepared by employing an electric-conduction polymer particle benzenesulfonic-acid-doped polythiophene (PEDT) nano-particle sol as an electric conduction material, and combining an organic material and an inorganic material through a sol-gel process. According to the method, an organic group and an organic electric-conduction material are introduced, organic-inorganic combination on the basis of a pure inorganic silicon oxide coating is realized, under the ...

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Номер записи: 16
23-06-2023 дата публикации

Planar motion braking device and bonding equipment

Номер: CN116292685A
Автор: CHEN WEN, ZHENG LINWEI, TIAN ZHI, WU CHUNCHUN, WANG ZHELAI, XIA WANGTAO
Принадлежит:

The invention relates to a braking system suitable for semiconductor packaging equipment, in particular to a planar motion braking device and bonding equipment. The planar motion braking device is arranged on the XY sliding table and comprises a power device with a Z-direction motion end, a power device support, a locking pressing block, a friction plate, a friction base and a reed. The power device support and the friction base are arranged at the fixed end of the XY sliding table, the friction plate is arranged at the moving end of the XY sliding table, and the reed comprises a middle part, an outer edge part located on the outer ring of the middle part and a connecting structure for connecting the outer edge part and the middle part; the locking pressing block penetrates through the connecting hole of the middle part; the outer edge part is fixedly connected with the power device support, and the connecting structure enables the middle part to have a Z-direction moving gap relative to ...

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Номер записи: 17
12-05-2023 дата публикации

Quaternary ammonium salt ionic liquid as well as preparation method and application thereof

Номер: CN116102433A
Автор: WANG ZHIYUAN, YU SHUNMING, CHENG SHUANGCHENG, WU CHUNCHUN, WANG YU, A RUHAN, LI HONGJI
Принадлежит:

The invention discloses quaternary ammonium salt ionic liquid as well as a preparation method and application thereof. The quaternary ammonium salt ionic liquid is prepared from tertiary amine and corresponding protonic acid, anions in the quaternary ammonium salt ionic liquid come from anions in the protonic acid and are selected from one anion of HSO4 <->, HSO4 (H2SO4) <->, HSO4 (H2SO4) < 2->, CF3SO3 <->, CH3SO3 <-> and R '-C6H4SO3 <->, R'is alkyl, and R' is alkyl. Cations of the quaternary ammonium salt ionic liquid come from ammonium cations formed by tertiary amine, and in the quaternary ammonium salt ionic liquid, the molar ratio of nitrogen atoms to protonic acid is 1: (1-3). The ionic liquid prepared by the method provided by the invention shows stronger catalytic activity in an acid catalytic reaction, the substrate conversion rate can reach 90% or more, a mononitro product is generated, and the product purity is high.

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Номер записи: 18
05-02-2014 дата публикации

Method for preparation of rapidly-solidified penetration-type protective agent for sea engineering concrete

Номер: CN103553708A
Автор: XU QIANG, YANG HUI, ZHAN SHULIN, SHEN QIANHONG, WU CHUNCHUN, SHENG JIANSONG, WANG RUI, ZHANG QILONG
Принадлежит:

The invention relates to the field of sea engineering material corrosion prevention, and aims to provide a method for preparation of a rapidly-solidified penetration-type protective agent for sea engineering concrete. The method includes the following steps: preparing an acidic component, to be more specific, mixing a precursor, deionized water and an alcohol, adding an acid catalyst, and stirring for reaction; preparing an alkaline component, to be more specific, mixing a precursor, the deionized water and the alcohol, adding an alkaline catalyst, and stirring for reaction; and adding the acidic component to the alkaline component for mixing, and stirring at 30 DEG C for reaction for full compositing. Compared with penetration-type protective agents in the prior art, according to the method, by utilization of the hydrolytic activity of acidic organic silicon sol, the protective agent rapidly reacts with concrete capillary pore walls to form a film, and at the same time, by utilization ...

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Номер записи: 19
10-12-2014 дата публикации

Preparation and application method of water-based ceramic anticorrosive paint

Номер: CN104193288A
Автор: WU CHUNCHUN, QUE YONGSHENG, ZHANG LINGJIE, SHEN QIANHONG, WANG HAIFENG, PENG XIAOGUANG, JIANG YIQUN
Принадлежит:

The invention relates to a surface coating technique, and aims to provide a preparation and coating method of a water-based ceramic anticorrosive paint. The method comprises the following steps: (1) component A precuring: regulating the pH value of a water-based silica sol by using a catalyst, adding deionized water and composite organosilane, and stirring to react to obtain the component A; (2) component B precuring: mixing a water-based silica sol, a pigment, a filler and assistants, and grinding to obtain the component B; and (3) mixing before use: mixing the component B with the precured component A, and oscillating, stirring or rolling to implement compounding and curing, thereby obtaining the water-based ceramic anticorrosive paint. The water-based ceramic paint has low content of VOCs (volatile organic compounds), and the content of VOCs of the final paint can be less than 100 g/L through the control of the alkoxy silane consumption; the prepared coating is environment-friendly and ...

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Номер записи: 20
15-08-2023 дата публикации

Drawing preparation system for small-diameter anti-bending optical fiber

Номер: CN116589179A
Автор: ZHANG ZHENGTAO, LI YINGJIAN, JIA LONG, WANG YANWEI, LUO JIAN, XIANG LEI, JIANG XIAOJUN, WU CHUNCHUN
Принадлежит:

The invention discloses a drawing preparation system for a small-diameter anti-bending optical fiber. The drawing preparation system comprises a heating furnace, a plurality of graphite pieces are arranged in the heating furnace, the upper part of the heating furnace is provided with a graphite furnace upper sealing cavity, and the lower part of the heating furnace is provided with a graphite furnace lower sealing cavity; the top of the preform is connected with the driving assembly; an optical fiber position measuring instrument is arranged at an outlet of the sealing cavity at the lower part of the graphite furnace; a dry gas cavity, a bare optical fiber diameter measuring instrument, a coating mold, a coated optical fiber diameter measuring instrument, a first UV curing lamp and a second UV curing lamp are sequentially arranged below the optical fiber position measuring instrument; an optical fiber led out of the second UV curing lamp sequentially bypasses the bottom wheel, the first ...

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Номер записи: 21
27-07-2011 дата публикации

Method for preparing organic-inorganic composite sol used for preventing corrosion on surface of metal aluminum plate

Номер: CN0102134411A
Автор: CHUNCHUN WU, HUI YANG, QIANHONG SHEN, WU CHUNCHUN, YANG HUI, SHEN QIANHONG
Принадлежит:

The invention relates to the preparation of sol and aims to provide a method for preparing organic-inorganic composite sol used for preventing corrosion on the surface of a metal aluminum plate, which comprises: adding at least one of methyl silicate and ethyl silicate into saturated alcohol solution of ammonia with stirring; adding water and reacting at 60 DEG C; adding Al(OH)3 sol with stirring, and aging at 50 DEG C for 24 hours; mixing zinc salt containing bivalent zinc ions and acid to prepare a double-component catalyst and adding the double-component catalyst with stirring to regulate the pH value to 1 to 5; and adding organosiloxane into the sol after stirring for reaction and thus, obtaining the composite sol suitable for prevention corrosion of the metal aluminum plate. In the invention, the adhesion force between the coating and the metal aluminum plate is increased, and a foundation is laid for the hardness and flexibility of the coating; and the reaction product form a linear ...

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Номер записи: 22
08-12-2004 дата публикации

用于制备抗静电、透明、高强度涂层的涂覆液生产方法

Номер: CN0001552776A
Автор: WU CHUNCHUN, HE XINBO, LU WENWEI, CHUNCHUN WU, XINBO HE, WENWEI LU, 吴春春
Принадлежит:

A coating liquid for generating antistatic, transparent and high-strength film on the surface of CRT is prepared through preparing the hydroxide sol of electric conducting metal oxide doped by soluble metal salt, preparing the inorganic filming sol from alkoxy silicate or alkyl titanate through hydrolytic polymerizing, mixing at 15-60 deg.C, taking hydrolysis and polycondensation.

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Номер записи: 23
10-12-2014 дата публикации

Preparation method of normal-temperature-curing single-component nano composite water-based paint

Номер: CN104194562A
Автор: QUE YONGSHENG, WU CHUNCHUN, SHEN QIANHONG, ZHANG LINGJIE, WANG HAIFENG, PENG XIAOGUANG, JIANG YIQUN
Принадлежит:

The invention relates to a paint preparation technique, and aims to provide a preparation method of a normal-temperature-curing single-component nano composite water-based paint. The method comprises the following steps: respectively adding water-based silicon oxide, titanium oxide and zirconium dioxide sols into separate reactors, regulating the pH value with a pH regulator, adding organosiloxane, and stirring to react to respectively obtain modified sols; and adding a water-based epoxy resin, a drying agent and assistants into the modified sols, and uniformly stirring, thereby obtaining the normal-temperature-curing single-component nano composite water-based paint. The sol-gel technique, organic silicon modification technique and nano modification and compounding technique are combined with the existing water-based resin to prepare the normal-temperature-curing single-component nano composite water-based paint with favorable comprehensive properties; and the normal-temperature-curing ...

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Номер записи: 24
16-09-2015 дата публикации

Indoor environment system

Номер: CN0204648744U
Автор: CHEN LI NAN, LIU ZHIGANG, CHEN TONGJING, LIN CHEN, WU CHUNCHUN, CHEN LI'NAN
Принадлежит:

The utility model discloses an indoor environment system, include cold and hot source, refrigeration end, heat end, controller and heat exchanger, the cold and hot source for connect a plurality of refrigeration on refrigerant b return circuit terminal with terminal cooling or heat supply heat, make the utility model discloses an indoor environment system compares with the indoor environment system that present ground warmed up with the air conditioner, does not need to install equipment such as heating boiler again, like this equipment the cost with install all greatly reduced of area, in addition, the user only needs can concentrate the refrigeration end among the management and control indoor environment system and heat the end the control by to the cold and hot source, makes the user easier to the management and control of equipment, convenient to use.

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Номер записи: 25
13-07-2011 дата публикации

Preparation method of alcohol solvent type high-purity silica sol

Номер: CN0102120584A
Автор: HUI YANG, YONGSHENG QUE, CHUNCHUN WU, YANG HUI, QUE YONGSHENG, WU CHUNCHUN
Принадлежит:

The invention relates to the technical field of nano material preparation, aiming at providing a preparation method of alcohol solvent type high-purity silica sol. The method comprises the following steps: mixing an alcohol solvent, water and a catalyst and then adding the mixture as a base material to a two-stage reactor; and mixing the alcohol solvent and tetramethoxysilane and then adding the mixture in the base material at the feeding speed of 4-40 ml/min under the condition of stirring so as to react for 12-24 hours at the reaction temperature of 0-45 DEG C, thus the solvent type high-purity silica sol is obtained, wherein the solid content of the prepared silica sol is 7-10%, and the average size of the silicon dioxide particle in the silica sol is 8-20 nm. The preparation method is simple in process and is easy to operate, the reaction is controllable, and the distribution of silica sol particles is narrow; the purity of the silica sol is high, the solid content for once preparation ...

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Номер записи: 26
07-04-2023 дата публикации

Multifunctional waterproof electric heating actuator

Номер: CN115929971A
Автор: HU JIANFENG, WU CHUNCHUN, ZHAO LESHENG, WANG QIANXIANG, YU YIQIU, WANG CHAO, JIANG JIXIAN, ZHANG DA, ZHENG YITUO, CHEN GANGZHENG
Принадлежит:

The invention relates to a multifunctional waterproof electric heating actuator. The technical problem that an existing electric heating actuator cannot automatically reset to an electric control mode after being manually started is solved. Comprising a fixing shell and a base which are detachably connected, a connecting nut used for being connected with a valve is arranged on the outer side of the base, an electric heating driving assembly is movably arranged in the fixing shell, and a manual assembly capable of rotating relative to the fixing shell is movably arranged at the end, away from the base, of the fixing shell. A self-resetting assembly capable of resetting the manual assembly after the electric heating driving assembly is started is arranged between the manual assembly and the electric heating driving assembly; or a bolt assembly mutually positioned with the electric heating driving assembly is arranged at one end, far away from the base, of the fixed shell. The automatic reset ...

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Номер записи: 27
18-04-2023 дата публикации

Preparation method of folic acid tablets

Номер: CN115969799A
Автор: HU XIUBO, MA XIAOMING, XU CHENGZHI, LIU LING, XIE QI'ANG, YU YINGMIN, LIU DONGHUA, WU CHUNCHUN
Принадлежит:

The invention provides a preparation method of folic acid tablets, and relates to the technical field of medicines. The preparation method comprises the following steps: premixing the folic acid, the microcrystalline cellulose, the disintegrating agent and the colloidal silicon dioxide in a wet mixing granulator; adding calcium hydrophosphate and a lubricant, and mixing to obtain total mixed powder; tabletting the total mixed powder; the tablet is packaged by an oral solid medicinal polypropylene bottle with a drying agent. By screening the mixing mode, the effective components of the obtained folic acid tablets are uniformly dispersed, no solvent is adopted in the preparation process, the influence of high-temperature drying on related substances is avoided, the preparation process is simple, convenient and controllable, and meanwhile, the moisture-proof combined bottle cap with a drying agent is adopted, so that the moisture is better controlled in the storage and use processes; and the ...

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Номер записи: 28
25-03-2015 дата публикации

Preparation method of metal surface corrosion-resistant composite silica sol

Номер: CN104451696A
Автор: WANG HAIFENG, WU CHUNCHUN, QUE YONGSHENG, YANG HUI
Принадлежит:

The invention discloses a preparation method of metal surface corrosion-resistant composite silica sol. The preparation method comprises the following steps: (1) adding ZrO2 sol in nano-SiO2 sol and aging at 45-55 DEG C for 22-26 hours to obtain composite SiO2 sol composed of ZrO2 and sol; and (2) adding an acid catalyst into the composite SiO2 sol composed of ZrO2 and sol until the pH is adjusted to 3-5; stirring for 0.4-0.6 hour, adding acetyl acetone as a chelating agent and organosiloxane as a coupling agent, further stirring for 0.4-0.6 hour, dropwise adding titanate serving as a coupling agent, heating to 30-50 DEG C and reacting for 4-6 hours; after the reaction is completed, cooling to room temperature to obtain the metal surface corrosion-resistant composite silica sol. According to the composite silica sol, excellent coating property is achieved, the salt-fog resistance is equal to or greater than 110 days, the hardness is equal to or greater than 5H, the anti-wear times of the ...

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Номер записи: 29
08-04-2015 дата публикации

Preparation method of self-cleaning anticorrosion sol for metal substrate

Номер: CN104497647A
Автор: WU CHUNCHUN, WANG HAIFENG, YANG HUI, SHEN QIANHONG, QUE YONGSHENG
Принадлежит:

The invention relates to the preparation technology of a sol, and aims at providing a preparation method of a self-cleaning anticorrosion sol for a metal substrate. The method comprises the following steps: feeding tetramethyl orthosilicate or tetraethoxysilane into a saturated alcohol solvent of ammonia gas under an agitating condition; then feeding water to react; performing rotary evaporation to remove some alcohol solvent to obtain high-solid-content particular colloidal silica sol; further feeding Al(OH)3 sol; ageing; further feeding nanometer titanium dioxide powder and glass beads; agitating; filtering the sol; further feeding a catalyst for regulating the pH; dropwise adding organo-siloxane to react to obtain the self-cleaning anticorrosion sol. According to the method, anatase titanium dioxide powder is introduced on the basis of Al(OH3) sol in-situ coated and modified coated silica sol and is grinded and uniformly dispersed into the Al(OH3) sol in-situ coated and modified coated ...

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Номер записи: 30
08-04-2015 дата публикации

Preparation method of aluminum oxide sol composite slurry

Номер: CN104497646A
Автор: YANG HUI, ZHANG LINGJIE, WU CHUNCHUN, SHEN TAO, ZHANG JI, JIANG QIUPING, SHEN ZHICHENG
Принадлежит:

The invention relates to the technical field of conductive coatings and aims at providing a preparation method of aluminum oxide sol composite slurry. The method comprises the following steps of adding a dispersing agent into nanometer aluminum oxide sol, and stirring at the rate of 1000-1200r/min for 10 minutes; then, adding nanometer tin dioxide powder while stirring, and continuing to stir for 0.5 hour; and next, sequentially adding nanometer silver powder and nanometer copper powder, and continuing to stir for 1 hour until the nanometer silver powder and the nanometer copper powder are uniformly dispersed to obtain the aluminum oxide sol composite slurry. The preparation method disclosed by the invention is simple in process; raw materials are relatively low in cost and available; and the large-scale industrial production is easily realized. A conductive coating prepared from the aluminum oxide sol composite slurry has the characteristics of high temperature resistance, hydrophobicity ...

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Номер записи: 31
02-07-2014 дата публикации

Near-optimal frequency spectrum resource dynamic distributing method based on index mechanism

Номер: CN103906072A
Автор: WU FAN, WEI ZUYING, WU CHUNCHUN, ZHU JIASHUN, CHEN GUIHAI
Принадлежит:

The invention provides a near-optimal frequency spectrum resource dynamic distributing method based on an index mechanism, and belongs to the technical field of wireless communication. A corresponding conflict graph is made according to the number of channels submitted by users and value of the channel of each user to a wireless network node, and the users are grouped; then according to the index mechanism, renting expenses of the users obtaining the channels in each user group are determined; the users obtaining the channels in each user group are determined according to the ultimate renting expenses of the users obtaining the channels in each user group; and ultimately according to the number of the channels and the number of the user groups, the user groups obtaining the channels are determined. In order to solve the problem of channel resource management in a wireless network, the method is combined with differential privacy, the renting expenses of the user groups are determined through ...

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Номер записи: 32
27-06-2023 дата публикации

Chip pin welding method

Номер: CN116329830A
Автор: ZHENG LINWEI, XIA WANGTAO, WANG JIANGJUN, WU CHUNCHUN
Принадлежит:

The invention relates to the field of chip pin welding, and discloses a chip pin welding method, which comprises the following steps of: S1, welding a ball head of a pin through a chopper; s2, the chopper is controlled to move upwards, so that the metal wire is broken on the ball head to form a tail wire; s3, controlling the chopper to transversely move for a preset distance W1; s4, the chopper is controlled to move downwards, so that the chopper and the tail wire are aligned in the horizontal direction, and the motion freedom degree of the chopper in the vertical direction is locked; and S5, controlling the chopper to transversely move to cut off the tail wire from the ball head. The tail wire is cut off by controlling the chopper to move, and the method is simple, reliable and convenient to implement.

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Номер записи: 33