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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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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 16. Отображено 16.
04-03-2015 дата публикации

Method for coating copper on surface of tungsten copper carbide alloy composite material

Номер: CN104384518A
Автор: ZHANG GUOJUN, FANG NINGXIANG
Принадлежит:

The invention discloses a method for coating copper on a surface of a tungsten copper carbide composite material through infiltration sintering. The method comprises the following steps: performing spray drying on tungsten carbide powder of different particle sizes according to a certain weight percentage, then granulating, and performing die forming to obtain a framework compact; stamping oxygen-free copper into a copper bar with required weight to serve as a sintering infiltration agent; laminating the framework compact and the sintering infiltration agent together, placing in a graphite mold matched with the outer circle of the compact, heating in a vacuum furnace to 1,250 DEG C to sinter, preserving the heat for 1 h, sintering to obtain tungsten copper carbide alloy, and remaining a copper layer of 0.3-5 mm thick on the surface of the alloy, wherein the sintering and the copper coating are performed in one step, an obtained product has superior welding performance, and testing shows ...

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Номер записи: 1
10-06-2015 дата публикации

Manufacturing method of aluminum die-cast ceramic armor plate, and armor plate manufactured through method

Номер: CN104697403A
Автор: ZHANG GUOJUN, FANG NINGXIANG, RU HONGQIANG, ZHANG BO, ZHANG XINLONG, JIN YING, YAN XUEZENG
Принадлежит:

The invention relates to a manufacturing method of an aluminum die-cast ceramic armor plate. A vacuum furnace or a die casting machine are utilized for die casting, and a lower die and a plurality of bulletproof ceramic pillars are included. The method is characterized by including the following steps: a. placement: the bulletproof ceramic pillars are vertically placed in the box-shaped lower die with a top opening; b. die casting: molten aluminum is injected into gaps among the bulletproof ceramic pillars in the lower die; c. demolding: demolding is carried out after the molten aluminum is solidified, so as to obtain an aluminum die-cast ceramic plate; d. compounding: the aluminum die-cast ceramic plate is compounded with a PE (polyethylene) plate or an aramid plate, and surface treatment is then carried out to obtain the aluminum die-cast ceramic armor plate. The bulletproof properties of the aluminum die-cast ceramic armor plate manufactured through the method reach NIJ level IV, so ...

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Номер записи: 2
17-12-2014 дата публикации

Method for cladding copper on surface of infiltration sintered tungsten-copper composite material

Номер: CN104213009A
Автор: FANG NINGXIANG, ZHANG GUOJUN
Принадлежит:

The invention discloses a method for cladding copper on a surface of an infiltration sintered tungsten-copper composite material. The method comprises the following steps: a mixture of tungsten powder and copper powder is prepared, wherein the content of the tungsten powder is 65-85 weight%, and the content of the copper powder is 15-35 weight%; after the prepared mixture is added to forming agent, and is dried for pelletizing through spraying, the prepared mixture is compressed for forming in a mold to obtain a tungsten skeleton pressing blank, wherein the pressing pressure is 150-400 MPa; oxygen-free copper is pressed into a copper bar serving as sintering infiltration agent; the sintering infiltration agent is stacked on the tungsten skeleton pressing blank, then the sintering infiltration agent and the tungsten skeleton pressing blank are put in a graphite mold, and are sintered in a vacuum furnace to obtain the tungsten-copper composite material; the tungsten-copper composite material ...

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Номер записи: 3
10-09-2014 дата публикации

Preparation method of low-temperature reactive sintered silicon carbide

Номер: CN104030688A
Автор: FANG NINGXIANG, ZHANG GUOJUN, ZHANG BO, ZHANG XINLONG
Принадлежит:

The invention discloses a preparation method of low-temperature reactive sintered silicon carbide. The method is characterized by sequentially comprising the following steps: evenly mixing carbon powder, silicon carbide powder and a proper amount of molding agent so as to form mixed powder; molding the mixed powder in a die pressing manner so as to obtain a ceramic biscuit; respectively molding metallic aluminum and silicon-aluminum alloy powder in a die in a pressing manner so as to obtain a metallic aluminum compaction and a silicon-aluminum alloy compaction; sequentially stacking the metallic aluminum compaction, the ceramic biscuit and the silicon-aluminum alloy compaction and sintering in a vacuum furnace in a heat preservation manner so as to obtain the reactive sintered silicon carbide. Based on the improvement of special raw materials, a formula and a machining process, compared with the reactive sintered silicon carbide product produced by utilizing other process routes, the reactive ...

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Номер записи: 4
11-03-2015 дата публикации

Ceramic small cylinder bullet-proof inserting plate

Номер: CN104406460A
Автор: ZHANG GUOJUN, FANG NINGXIANG
Принадлежит:

The invention belongs to the technical field of manufacturing of bullet-proof clothes or bullet-proof vests, and particularly relates to a manufacturing technique of a ceramic small cylinder bullet-proof inserting plate, which comprises a PE (polyethylene) back plate and a plurality of bullet-proof ceramic blocks, wherein the PE back plate and the bullet-proof ceramic blocks are coated by high-strength rubber material in an injection molding way, the bullet-proof ceramic blocks are flatly arranged and tightly adhered to the outer side of the PE back plate, the outer side of the PE back plate is covered by the bullet-proof ceramic blocks, each bullet-proof ceramic block is a cylindrical ceramic block, the bullet-proof ceramic blocks are adhered and combined to form a bullet-proof plate, the diameter phi1 of each cylindrical ceramic block is 10-15mm, the cross sections of the two ends of each cylindrical ceramic block are respectively in a circular arc shape, and the integral cylindrical ...

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Номер записи: 5
25-03-2015 дата публикации

Crack stopping structure of bulletproof ceramic insertion plate

Номер: CN104457431A
Автор: ZHANG GUOJUN, ZHANG BO, ZHANG XINLONG, JIN YING, FANG NINGXIANG
Принадлежит:

The invention discloses a crack stopping structure of a bulletproof ceramic insertion plate. The crack stopping structure of the bulletproof ceramic insertion plate comprises an integrated insertion plate body. The cross section of the integrated insertion plate body in the width direction is arc, the cross section of the integrated insertion plate body in the length direction is arc, multiple crack stopping holes are formed in the integrated insertion plate body, and the diameters of the crack stopping holes range from 1 mm to 1.5 mm. According to the crack stopping structure of the bulletproof ceramic insertion plate, an integrated bulletproof ceramic insertion plate is adopted, the crack stopping holes are formed in the integrated insertion plate body, the fragility of the integrated insertion plate body is reduced, the crack stopping holes are distributed in scattered and staggered modes so that cracks generated due to the fact that the ceramic insertion plate is impacted by a bullet ...

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Номер записи: 6
18-02-2015 дата публикации

Multifunctional bulletproof helmet

Номер: CN104359348A
Автор: ZHANG GUOJUN, FANG NINGXIANG
Принадлежит:

The invention provides a multifunctional bulletproof helmet. The multifunctional bulletproof helmet comprises a helmet main body, wherein a night viewing head lamp is arranged on the front side of the helmet main body after being worn; carriage bags are arranged on the left side, the right side and the rear side of the outer surface of the helmet main body; a Velcro tape is arranged at the upper part of the helmet main body; an elastic rope is arranged at the bottom of the helmet main body and along the helmet edge; a crash pad is arranged in the inner cavity of the helmet main body; an antiskid rubber gasket is arranged at the bottom of the inner cavity of the helmet main body; air vents running through the upper part and the lower part are formed in the antiskid rubber gasket; a waterproof microphone is arranged on one side of the helmet main body; a position indicator is arranged at the top of the helmet main body; a camera is arranged inside the night viewing head lamp, used for shooting ...

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Номер записи: 7
18-05-2011 дата публикации

Cold isostatic pressing method of large-size cylindrical thin silicon carbide ceramic biscuit

Номер: CN0101653964B
Автор: FANG NINGXIANG, PAN YI, ZHANG GUOJUN, NINGXIANG FANG, YI PAN, GUOJUN ZHANG
Принадлежит:

The invention discloses a cold isostatic pressing method of a large-size cylindrical thin silicon carbide ceramic biscuit. The method comprises the following steps: (1) mechanically stirring and mixing a saturated tetramethyl ammonium hydroxide aqueous solution and silicon carbide powder, adding a polyving akohol aqueous solution and an acrylamide aqueous solution, mechanically stirring and mixing, adding graphite powder and carbon powder for ball milling so as to obtain a mixed slurry; (2) drying, pulverizing and granulating the mixed slurry and then dieforming the mixed slurry by an oil press so as to obtain a cylindrical biscuit; (3) repeatedly soaking the biscuit by a methylene diacrylamide aqueous solution and then drying the biscuit; (4) carrying out polymerization and crosslinking heat treatment; and (5) putting the cylindrical biscuit in alloy clamp moulds in the same shape for cold isostatic pressing. The invention realizes the high-intensity bonding of powder by utilizing the ...

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Номер записи: 8
22-04-2015 дата публикации

Bulletproof Polyethylene (PE) plate and production method thereof

Номер: CN104534931A
Автор: JIN YING, FANG NINGXIANG, ZHANG GUOJUN, ZHANG BO, ZHANG XINLONG
Принадлежит:

The invention relates to a bulletproof PE plate. The bulletproof PE plate is formed by stacking of multi-layer ultra-high molecular weight polyethylene fiber UD cloth, and the UD cloth is in a radial and weft staggered stacking mode. The method comprises a, cutting: cutting the UD cloth into a bulletproof pate shape or a peltate shape along the radial direction or the weft direction to form UD cloth blocks; b, stacking: aligning and stacking the multi-layer radial and weft staggered UD cloth blocks vertically; c, vacuum heating preservation: putting a certain number of the stacked multi-layer UD cloth blocks in vacuum bags, performing vacuum pumping on the vacuum bags, putting the vacuum pumped vacuum bags in a heating tank to be preserved in the high temperature; d, pressing: taking the preserved vacuum bags from the heating tank to be put on a hydraulic machine immediately to be pressed, maintaining the pressure till the vacuum bag is cooled below 50 DEG C to be taken out to obtain the ...

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Номер записи: 9
17-12-2014 дата публикации

Bullet-proof helmet embedded with bullet-proof ceramics

Номер: CN104215123A
Автор: FANG NINGXIANG, ZHANG GUOJUN
Принадлежит:

The invention discloses a bullet-proof helmet embedded with bullet-proof ceramics. The bullet-proof helmet comprises a shell and a suspension part, and is characterized in that the shell consists of a back lining layer, a bullet-proof ceramic layer, an anti-sputtering layer and a surface appearance layer in sequence from inside to outside; the back lining layer is stuck to the inner surface of the bullet-proof ceramic layer; the anti-sputtering layer is stuck to the outer surface of the bullet-proof ceramic layer; the surface appearance layer is stuck to the outer surface of the anti-sputtering layer. The bullet proofing effect of the bullet-proof helmet is further improved through the bullet-proof ceramic layer; the bullet-proof helmet can resist handgun bullets and rifle bullets, so that the life safety of a wearer can be better ensured.

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Номер записи: 10
08-04-2015 дата публикации

Straight-line die

Номер: CN104493028A
Автор: JIN YING, ZHANG GUOJUN, ZHANG BO, ZHANG XINLONG, FANG NINGXIANG
Принадлежит:

The invention relates to a straight-line die. The straight-line die comprises a die disc, the center of the die disc is provided with a connecting hole, the inner wall surface of the connecting hole is provided with tooth lines uniformly, and the upper edge and the lower edge of the die disc are provided with chamfers. The straight-line die takes the place of a conventional rolling-cutting straight-line die, size accuracy of processing products is improved, and product quality is guaranteed. The central connecting hole of the die is uniformly provided with the tooth lines, and the die is convenient and firm in connection. A plurality of round through holes are uniformly and circumferentially arranged on the surface of the die disc, and the die is light and good in heat radiation effect.

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Номер записи: 11
17-09-2014 дата публикации

Reactive-sintered ceramic bulletproof plugboard and method for preparing reactive-sintered bulletproof ceramics

Номер: CN104045348A
Автор: FANG NINGXIANG, ZHANG GUOJUN, ZHANG BO, ZHANG XINLONG
Принадлежит:

The invention discloses a reactive-sintered ceramic bulletproof plugboard and a method for preparing reactive-sintered bulletproof ceramics. The method sequentially comprises the following steps: uniformly mixing ceramic powder, carbon source powder and a forming agent with a ball mill, so as to obtain mixed powder, carrying out spray drying on the mixed powder, granulating, and then, carrying out press forming in a die, so as to obtain a ceramic pressed shape; uniformly mixing silicon powder, silicon carbide powder and boron nitride powder, and carrying out press forming in a die, so as to obtain an infiltration agent sintered pressed shape; stacking the ceramic pressed shape and the infiltration agent sintered pressed shape together, and carrying out reactive sintering in a vacuum environment, so as to obtain sintered ceramics; knocking to remove infiltration agent residues from the surface of the sintered ceramics, thereby obtaining a dense ceramic sheet. The bulletproof plugboard can ...

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Номер записи: 12
08-04-2015 дата публикации

Complete plate type bulletproof inserting plate

Номер: CN104501658A
Автор: ZHANG BO, JIN YING, ZHANG GUOJUN, ZHANG XINLONG, FANG NINGXIANG
Принадлежит:

The invention discloses a complete plate type bulletproof inserting plate. The complete plate type bulletproof inserting plate comprises a bulletproof inserting plate body consisting of a waterproof layer, a bulletproof layer and a buffering layer, the waterproof layer is made of soft waterproof cloth, a stiffened plastic casing or water-resistant high-performance fiber cloth, the bulletproof layer is formed by combining a high-hardness bulletproof ceramic layer with a high-tenacity fiber fabric layer through an adhesive layer by means of pressing, and the high-hardness bulletproof ceramic layer is arranged in front of the high-tenacity fiber fabric layer and is formed by splicing of a plurality of bulletproof ceramic. The complete plate type bulletproof inserting plate has the advantages that the inserting plate is high in resistance to multiple-time striking, the bulletproof ceramic inserting plate is made of high-tenacity fabric mainly referring to aramid fiber and ultra-high molecular ...

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Номер записи: 13
10-09-2014 дата публикации

Concave bulletproof ceramic plate

Номер: CN104034209A
Автор: FANG NINGXIANG, ZHANG GUOJUN, ZHANG BO, ZHANG XINLONG
Принадлежит:

The invention discloses a concave bulletproof ceramic plate. The concave bulletproof ceramic plate comprises two parallel arch-shaped surfaces, connecting lines of four vertexes of the arch-shaped surfaces form a square, one of the arch-shaped surfaces protruding outwardly is a bullet-ward surface, a square recess is arranged above the bullet-ward surface, a first cambered surface, a plane and a second cambered surface, which are sequentially connected end to end, are arranged on the side wall of the recess from top to bottom, an extension surface of the plane and the bottom surface of the recess form a 135-degree included angle, and the distance between the upper edge of the side wall of the recess and the end of the arch-shaped surfaces is one ninth of the length of the arch-shaped surfaces. The bullet-ward surface of the ceramic plate is provided with the recess, the center of the recess has good bulletproof function for bullets, and the first cambered surface, the plane and the second ...

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Номер записи: 14
04-03-2015 дата публикации

Ceramic bulletproof plugboard

Номер: CN104390522A
Автор: FANG NINGXIANG, ZHANG GUOJUN
Принадлежит:

The invention relates to a ceramic bulletproof plugboard. The ceramic bulletproof plugboard comprises a backboard; a plurality of bulletproof ceramic blocks are arranged on the backboard, and are separated into a plurality of levels in the length extension direction of the backboard; seams formed by splicing the bulletproof ceramic blocks in adjacent levels are staggered from one another. Therefore, the seams of the bulletproof ceramic blocks in the adjacent levels are staggered from one another by a novel bulletproof ceramic bock arrangement mode, so that the bulletproof performance of the ceramic bulletproof plugboard is improved.

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Номер записи: 15
24-02-2010 дата публикации

Cold isostatic pressing method of large-size cylindrical thin silicon carbide ceramic biscuit

Номер: CN0101653964A
Автор: FANG NINGXIANG, PAN YI, ZHANG GUOJUN, NINGXIANG FANG, YI PAN, GUOJUN ZHANG
Принадлежит:

The invention discloses a cold isostatic pressing method of a large-size cylindrical thin silicon carbide ceramic biscuit. The method comprises the following steps: (1) mechanically stirring and mixing a saturated tetramethyl ammonium hydroxide aqueous solution and silicon carbide powder, adding a polyving akohol aqueous solution and an acrylamide aqueous solution, mechanically stirring and mixing, adding graphite powder and carbon powder for ball milling so as to obtain a mixed slurry; (2) drying, pulverizing and granulating the mixed slurry and then dieforming the mixed slurry by an oil press so as to obtain a cylindrical biscuit; (3) repeatedly soaking the biscuit by a methylene diacrylamide aqueous solution and then drying the biscuit; (4) carrying out polymerization and crosslinking heat treatment; and (5) putting the cylindrical biscuit in alloy clamp moulds in the same shape for cold isostatic pressing. The invention realizes the high-intensity bonding of powder by utilizing thesynergistic ...

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Номер записи: 16