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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 10. Отображено 10.
02-07-2020 дата публикации

FLAME-RETARDANT NYLON COMPOSITE MATERIAL AND APPLICATION THEREOF

Номер: WO2020134845A1
Автор: ZHENG, Yiquan, JIN, Xuefeng, FENG, Decai, DING, Chao, HU, Zeyu, HE, Yong, HUANG, Xianbo, YE, Nanbiao
Принадлежит:

Disclosed in the present invention are a flame-retardant nylon composite material and an application thereof. The flame-retardant nylon composite material comprises the following components: 55-80 parts of a nylon resin, 1-30 parts of red phosphorus, and 0.01-2 parts of a phenolic substance. According to the present invention, by adding a small amount of phenolic substance into the red phosphorus flame-retardant nylon composite material, phosphorus can be effectively prevented from being separated out and the separate-out amount of hydrogen phosphide can be reduced to 30 ppm or below; and meanwhile, a good electric property can be kept, so that the flame-retardant nylon composite material is suitable for the fields of connectors, contactors and the like in electric products.

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Номер записи: 1
08-08-2023 дата публикации

Rotary pure aluminum target material and preparation method thereof

Номер: CN116555749A
Автор: CHU XIN, WU SANSHUAN, HU ZEYU, XIE YINGCHUN, FAN JIALIN, WANG GAOMIN, ZENG LIANG, RONG WENHE, DENG CHUNMING
Принадлежит:

The invention discloses a rotary pure aluminum target material and a preparation method thereof, and belongs to the technical field of magnetron sputtering target material preparation. The preparation method of the rotary pure aluminum target material comprises the following steps that a bonding layer is arranged on the surface of a back pipe body in a laser-assisted cold spraying mode; and a pure aluminum surface layer is arranged on the surface, deviating from the back pipe body, of the bonding layer in a cold spraying mode. The method is simple in process and low in cost, and the large-size rotating aluminum target material which is high in bonding strength and thermal conductivity and long in service life can be prepared.

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Номер записи: 2
21-04-2022 дата публикации

LOW-MOLD DEPOSIT HALOGEN-FREE FLAME-RETARDANT THERMOPLASTIC POLYAMIDE COMPOSITION, AND PREPARATION METHOD THEREFOR AND APPLICATION THEREOF

Номер: WO2022077865A1
Автор: JIN, Xuefeng, HUANG, Xianbo, YE, Nanbiao, WANG, Feng, HU, Zeyu, YI, Xin, WU, Changbo, ZHENG, Yiquan
Принадлежит:

The present invention provides a low-mold deposit halogen-free flame-retardant thermoplastic polyamide composition, and a preparation method therefor and an application thereof. The low-mold deposit halogen-free flame-retardant thermoplastic polyamide composition of the present invention comprises the following components in parts by weight: 20-82 parts of a thermoplastic polyamide resin; 13-25 parts of a flame retardant; 1-5 parts of a flame retardant synergist; 5-50 parts of a reinforcing material; and 0.5-5 parts of an adsorbent. The flame retardant comprises a phosphinate flame retardant, and the adsorbent is an ethylene copolymer. According to the low-mold deposit halogen-free flame-retardant thermoplastic polyamide composition of the present invention, the ethylene copolymer is added as the adsorbent, and the amount of addition thereof is controlled, so that the prepared low-mold deposit halogen-free flame-retardant thermoplastic polyamide composition has excellent flame retardancy ...

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Номер записи: 3
25-08-2023 дата публикации

Ultrahigh large-span steel structure accurate butt joint method and system based on BIM (Building Information Modeling) technology

Номер: CN116644504A
Автор: WANG HONGLIANG, CHENG XINLU, ZHAO RUSHUAI, LOU KAIXIANG, HU ZEYU, YAN FANG, HE LU
Принадлежит:

The invention discloses an ultrahigh large-span steel structure accurate butt joint method and system based on a BIM technology. The system comprises a foundation model building module, a steel structure skeleton model building module, a steel beam short section model building module, a storage module, an analysis module, a loading module, a task scheduling module, a monitoring module, a configuration module, a positioning module and a remodeling module. According to the method, three-dimensional design software is utilized in a BIM model, a foundation model is used as a basis, a steel structure skeleton model is constructed on the foundation model by utilizing a design drawing of a steel structure and corresponding contour parameters, and meanwhile, steel beam nipple models of different specifications are constructed in the BIM model on the basis of the foundation model on the basis of steel beam nipple finished products of different specifications; by means of the technology, segmented ...

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Номер записи: 4
16-05-2023 дата публикации

Flame-retardant polyamide material as well as preparation method and application thereof

Номер: CN116120740A
Автор: ZHANG YAJUN, CHEN PINGXU, YE NANBIAO, WANG FENG, DING CHAO, YANG ZHIJIAN, JIN XUEFENG, HU ZEYU, ZHENG YIQUAN
Принадлежит:

The invention provides a flame-retardant polyamide material, which is prepared from the following ingredients in parts by weight: 25 to 90 parts of polyamide resin, 5 to 20 parts of red phosphorus flame retardants, 1 to 8 parts of ethylene/zinc acrylate ion copolymers and 20 to 50 parts of glass fibers. Wherein the polyamide resin comprises aliphatic polyamide resin and aromatic polyamide resin; in the ethylene/acrylic acid zinc ion copolymer, the neutralization degree neutralized by zinc ions is more than 30%; the aromatic polyamide resin is selected from one or more of polymers prepared through polycondensation of monomers with the following structures, wherein n is 4, 6, 8 or 10; the mass ratio of the aliphatic polyamide resin to the aromatic polyamide resin is (1-14): 1. The flame-retardant polyamide material disclosed by the invention has relatively high oxygen index and relatively good flame retardance, strength and toughness, and the application scene of the flame-retardant polyamide ...

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Номер записи: 5
25-07-2023 дата публикации

Polyamide composite material as well as preparation method and application thereof

Номер: CN116478532A
Автор: JIN XUEFENG, CHEN PINGXU, YE NANBIAO, WANG FENG, ZHANG YAJUN, HU ZEYU, YI XIN, WU CHANGBO, DING CHAO
Принадлежит:

The invention discloses a polyamide composite material which comprises the following components in parts by weight: 30-60 parts of aliphatic polyamide resin; 6 to 18 parts of PA6T/6I; 10 to 50 parts of glass fiber; 14 to 28 parts of a flame retardant; 0.3 to 1 part of an antioxidant; the flame retardant is selected from any one or more of a mixture of aluminum diethylphosphinate and aluminum phosphite or a mixture of aluminum diethylphosphinate and melamine polyphosphate. In the glass fiber reinforced polyamide material, a specific flame-retardant system is selected, and a certain amount of PA6T/6I and the antioxidant are added, so that the high-temperature anti-yellowing performance of the material is effectively improved, the flame-retardant performance and mechanical strength of the material are ensured, and the problem of fiber floating on the surface of a workpiece can be solved; the high-temperature-resistant flame-retardant plastic has good color stability at high temperature and ...

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Номер записи: 6
15-08-2023 дата публикации

Repair method of copper-aluminum composite bar and copper-aluminum repaired composite bar

Номер: CN116598944A
Автор: CHU XIN, WU SANSHUAN, HU ZEYU, RONG WENHE, XIE YINGCHUN, DENG CHUNMING
Принадлежит:

The invention discloses a copper-aluminum composite bar repairing method and a copper-aluminum repairing composite bar, and belongs to the technical field of conductor materials. The repairing method comprises the following steps that a repairing layer is deposited in a to-be-repaired area of the copper-aluminum composite bar in a cold spraying mode; the process conditions of cold spraying are as follows: the pressure of working gas is 1-10MPa; the temperature of the working gas is 100-1000 DEG C; the spraying distance ranges from 10 mm to 100 mm; the moving speed of the spray gun is 10-1000mm/s; and the powder feeding rate is 1-500 g/min. The method can effectively repair the scrapped copper-aluminum composite bar, prolongs the service life of the copper-aluminum composite bar, realizes economy and resource conservation, and has remarkable application value. In the obtained copper-aluminum repair composite bar, the performance of the repair layer is higher than that of the copper layer ...

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Номер записи: 7
12-05-2023 дата публикации

Brominated flame-retardant polyamide composite material as well as preparation method and application thereof

Номер: CN116102881A
Автор: JIN XUEFENG, CHEN PINGXU, YE NANBIAO, WANG FENG, HU ZEYU, ZHANG YAJUN, YI XIN, WU CHANGBO, ZHANG ZHICHAO, WANG BING
Принадлежит:

The invention discloses a brominated flame-retardant polyamide composite material which comprises the following components: 36-52 parts of aliphatic polyamide; 6 to 18 parts of aromatic polyamide; 15 to 50 parts of glass fiber; 17-30 parts of a bromine/antimony flame retardant; the bromine/antimony flame retardant is formed by compounding brominated polystyrene and antimony trioxide, and the total chlorine content of the brominated polystyrene is less than 6000 ppm. According to the brominated flame-retardant polyamide composite material disclosed by the invention, a flame-retardant system formed by compounding brominated polystyrene with specific chlorine content and antimony white is adopted, and a specific amount of aromatic polyamide is added, so that the odor problem of the brominated flame-retardant polyamide material can be effectively solved, and excellent demolding performance of the material is ensured.

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Номер записи: 8
04-08-2023 дата публикации

Polyamide composition as well as preparation method and application thereof

Номер: CN116535850A
Автор: ZHANG YAJUN, CHEN PINGXU, YE NANBIAO, WANG FENG, DING CHAO, YANG ZHIJIAN, JIN XUEFENG, HU ZEYU, ZHENG YIQUAN
Принадлежит:

The invention discloses a polyamide composition as well as a preparation method and application thereof, and the polyamide composition comprises the following components in parts by weight: 40-80 parts of polyamide resin; 15 to 40 parts of glass fiber; 6-15 parts of red phosphorus master batch; 0.3-2 parts of a mold scale inhibitor; wherein the mold scale inhibitor is a mixture of a copper salt compound and copper oxide. The polyamide composition provided by the invention not only has good flame retardant property, but also has the characteristic of low mold scale, and can effectively solve the mold scale problem of the existing red phosphorus flame retardant polyamide.

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Номер записи: 9
18-07-2023 дата публикации

Polyamide composite material as well as preparation method and application thereof

Номер: CN116444983A
Автор: HU ZEYU, CHEN PINGXU, YE NANBIAO, WANG FENG, JIN XUEFENG, DING CHAO, ZHENG YIQUAN, WU CHANGBO, YI XIN, ZHANG YAJUN
Принадлежит:

The invention discloses a polyamide composite material as well as a preparation method and application thereof, and the polyamide composite material comprises the following components in parts by weight: 35-80 parts of PA66 or PA6; 5-30 parts of spherical boron nitride; and 5-30 parts of needle-like boron nitride. According to the invention, the thermal conductivity of the polyamide composite material can be improved, and the polyamide composite material is ensured to have good mechanical properties.

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Номер записи: 10