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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 21. Отображено 21.
29-07-2015 дата публикации

Analytical sampling and analytical method for failure of H-section steel

Номер: CN104807667A
Автор: Feng Yanqing
Принадлежит:

The invention discloses an analytical sampling and analytical method for failure of H-section steel. Web cracks and straightening cracks are two crack failure forms often occurred in H-section steel production by profiled blanks, wherein the wed cracks are positioned in a web position of the H-section steel, but the web cracks and the straightening cracks are all generated in the connecting R corner of a web and a wing plate sometimes, so that the web cracks and the straightening cracks are unlikely to be distinguished. The invention mainly provides a method for judging failure forms of the H-section steel, as well as a sampling position and a detection analytical method in an implementing process of the method.

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Номер записи: 1
19-06-2013 дата публикации

Medium-carbon microalloyed steel for engineering machinery caterpillar chain piece and production process thereof

Номер: CN103160729A
Автор: Zhou Yan, Zhi Jianguo, Song Juntao, Li Deyue, Feng Yanqing
Принадлежит:

The invention discloses a medium-carbon microalloyed steel for an engineering machinery caterpillar chain piece. The medium-carbon microalloyed steel comprises the following chemical components by mass percent: 0.30-0.37% of C, 0.15-0.35% of Si, 0.80-1.50% of Mn, less than or equal to 0.025% of P, 0.005-0.030% of S, less than or equal to 0.055% of Al, 0.0005-0.0035% of B, less than or equal to 0.15% of V, less than or equal to 0.080% of Ti, less than or equal to 0.30% of Cr, less than or equal to 0.30% of Ni, less than or equal to 0.35% of Cu, less than or equal to 0.15% of Mo, less than or equal to 0.020% of Pb, less than or equal to 0.030% of Sn, and the balance of Fe and inevitable impurities. The invention also discloses a preparation method for producing the medium-carbon microalloyed steel for the engineering machinery caterpillar chain piece. The metallurgical quality, for example, surface quality, macrostructure, non-metallic inclusion, grain size, metallographic structure and the ...

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Номер записи: 2
22-07-2015 дата публикации

Low-cost SM490C hot-rolling H section steel and preparation method thereof

Номер: CN104789856A
Автор: Feng Yanqing
Принадлежит:

The invention discloses SM490C hot-rolling H section steel and a preparation method thereof. The preparation method comprises a smelting technology and a rolling technology; the H section steel comprises the following chemical components in percentage by weight: 0.14-0.18% of C, 0.25-0.40% of Si, 1.35-1.50% of Mn, no more than 0.03% of P, no more than 0.020% of S, 0.001-0.002% of B, and the balance of Fe; the tensile strength of the H section steel is 490-610 MPa; the yield strength of the H section steel is higher than or equal to 325 MPa; the elongation percentage of the H section steel is higher than or equal to 30%;the impact at 20 DEG C of a hot-rolling H section steel finished wing plate is higher than or equal to 100 J; the low-temperature impact at 0 DEG C of the wing plate is higher than or equal to 80 J.

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Номер записи: 3
26-09-2012 дата публикации

Nb+Ti-IF (Interstitial-Free) steel twice cold rolling process and recrystallization annealing method

Номер: CN102690990A
Автор: Feng Yanqing, Zhang Xiaoyan, Kang Liming, Zhang Xiufei
Принадлежит:

The invention relates to an Nb+Ti-IF (Interstitial-Free) steel twice cold rolling process and a recrystallization annealing method which are characterized in that the total reduction rate of 75-80% is adopted in primary cold rolling, and the intermediate annealing process is performed under the conditions that the heating rate is 4-8 DEG C/min, the annealing temperature is 700-750 DEG C, the heat preservation time is 1-10 hours, and the IF steel is cooled with a furnace to 400-450 DEG C and then is taken out to be cooled in the air; and the total reduction rate of 50-60% is adopted in secondary cold rolling, and the annealing process is performed under the conditions that the heating rate is 4-8 DEG C/min, the annealing temperature is 700-750 DEG C, the heat preservation time is 1-10 hours, and the IF steel is cooled with the furnace to 400-450 DEG C and then is taken out to be cooled in the air. The method disclosed by the invention has the advantages that an IF steel sample treated by ...

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Номер записи: 4
07-08-2013 дата публикации

Longitudinal-transverse type core wound rail sampling and fracture analysis method

Номер: CN103235100A
Автор: Feng Yanqing, Gao Mingxing
Принадлежит:

The present invention discloses a longitudinal-transverse type core wound rail sampling and fracture analysis method, which comprises: detecting a position of a transverse fatigue crack inside a rail head of a longitudinal-transverse type core wound rail; pressing the transverse fatigue crack to expose a core wound transverse fatigue fracture, observing a macroscopic morphology of the transverse fatigue fracture, and determining a core wound type; cutting the core wound rail from the transverse fatigue fracture surface along a longitudinal surface to obtain a preliminary sample; unclosing a longitudinal fatigue crack of the preliminary sample to obtain a two coupling longitudinal fatigue fracture sample, and observing a position and a size of a fatigue source of the longitudinal fatigue fracture; washing the two coupling longitudinal fatigue fracture sample, and adopting a scanning electron microscopy to observe a microscopic morphology of a fatigue source of the longitudinal fatigue fracture ...

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Номер записи: 5
19-09-2012 дата публикации

Annealing process method of steel SPHE for cold rolling stamping

Номер: CN102676761A
Автор: Feng Yanqing, Zhang Xiaoyan, Kang Liming, Zhang Xiufei
Принадлежит:

The invention relates to an annealing process method of steel SPHE for cold rolling stamping. The annealing process method of the steel SPHE for the cold rolling stamping is characterized in that a plate blank comprises, by weight percentage, C<=0.008%, Si<=0.01%, Mn<=0.2%, P<=0.008%, S<=0.008%, Alt>=0.035%, Cr<=0.026%, Ni<=0.02% and the balance Fe and trace impurities which cannot be detected. The annealing process is that heating rate is 4-8 DEG C/min, annealing temperature is 640 DEG C-700 DEG C, soaking time is 2-6 hours, and the steel is cooled to 400 DEG C-450 DEG C along with a furnace to be discharged from the furnace and perform air cooling. The annealing process method of the steel SPHE for the cold rolling stamping has the advantage that incubation time is enough before crystal particle nucleation in a cold rolled steel sample through the process, and [111] texture components are enhanced and distributed in dispersion mode when a second phase is dissolved out. The cold rolled ...

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Номер записи: 6
03-10-2012 дата публикации

Method for displaying hard phase organization

Номер: CN102706720A
Автор: Feng Yanqing, Gao Mingxing, Zhi Jianguo, Zhou Yan, Song Juntao
Принадлежит:

The invention relates to a method for displaying a hard phase organization, which is characterized by adopting a technical scheme as follows: a corrosive agent is the mixture of a Na2S2O5.5H2O solution and a picric acid solution; after coarse grinding, fine grinding and polishing, a metallographic sample is immersed in the corrosive agent, wherein the immersion depth is 2-4 mm, and the corrosion time is 10-20 s; the sample is immediately rinsed by water until the color of the surface thereof becomes dark blue-purple; and after dried by a drier, the sample is placed under a microscope to observe the organization form. The method has the advantages that the corrosive agent has a simple formula and can clearly corrode steel products; and the analyses of the distribution, shapes and sizes of M-A islands in the steel products are well facilitated, and a quantitative analysis can be executed.

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Номер записи: 7
29-07-2015 дата публикации

Boracic deep low temperature hot rolling H-section steel and preparation method thereof

Номер: CN104805354A
Автор: Feng Yanqing
Принадлежит:

The invention discloses a boracic deep low temperature hot rolling H-section steel and a preparation method thereof. The specification range of the H-section steel is in a small specification of below H300*300*10*15, and the H-section steel has the performance requirements that the longitudinal low-temperature impact of wing plates at the temperature of -50 to -70 DEG C is greater than or equal to 80J, the transverse low-temperature impact of the wing plates at the temperature of -20 DEG C is greater than or equal to 70J, the longitudinal low-temperature impact of web plates at the temperature of -50 to -70 DEG C is greater than or equal to 100J, and the performance of the steel is higher than that of the national standard GB/T1591-2008 low-medium high-strength structure E-level steel that the low-temperature impact is greater than or equal to 34J at -40 DEG C. In order to guarantee deep low temperature impact toughness, the low temperature impact toughness is guaranteed by adopting the ...

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Номер записи: 8
18-07-2012 дата публикации

Extra-deep drawing IF steel and annealing process thereof

Номер: CN102586679A
Автор: Gao Zhiguo, Cheng Defu, Kang Liming, Zhang Hui, Wang Haiming, Feng Yanqing
Принадлежит:

Extra-deep drawing IF steel and an annealing process thereof belong to the technical field of metallurgy. The extra-deep drawing IF steel is characterized that the chemical components and the weight percentage content should conform to: C<=0.008%, Si<=0.015%, Mn<=0.15, P<=0.01%, S<=0.005%, Alt>=0.015%, Ti=0.01-0.07%, Nb=0.01-0.02%, and the balance Fe and trace impurities which cannot be detected. In the annealing process, continuous heating is adopted, the heating rate is 4-8 DEG C/min, the intermediate annealing temperature is 700 DEG C to 750 DEG C, the heat-preserving time is 1-50h, and cooling is performed along with a furnace. The second annealing temperature is 700 DEG C to 750 DEG, the heat-preserving time is 1-10h, and cooling is performed along with the furnace to 400 DEG C-450 DEG C, and discharging and air cooling are performed. The IF steel having excellent deep drawing performance can be obtained by the method, an IF steel sample processed by the process has excellent deep ...

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Номер записи: 9
06-02-2013 дата публикации

Ultra-deep-draw Ti-IF steel cold rolling and annealing process

Номер: CN102912232A
Автор: Feng Yanqing, Zhang Xiaoyan, Wang Yong, Zhang Xiufei, Bai Yaqiong
Принадлежит:

The invention relates to an ultra-deep-draw Ti-IF steel cold rolling and annealing process. A steel plate blank comprises the following chemical components in percentage by weight: less than or equal to 0.005% of C, less than or equal to 0.2% of Mn, less than or equal to 0.01% of P, less than or equal to 0.008% of S, more than or equal to 0.015% of Alt, 0.04-0.064% of Ti, less than or equal to 0.006% of N and balance of Fe and microimpurities which can not be detected; five-pass cold rolling is adopted in a cold rolling process, and the total rolling reduction of the five-pass cold rolling is 75-85%; inlet rolling speed and outlet rolling speed are respectively 260KN and 29KN; and an anneal process comprises two-stage warming, wherein heating rates are respectively 70-85 DEG C/h and 30-45 DEG C/h, annealing temperature is 680-720 DEG C, holding time is 8-15 hours, then three-stage cooling is adopted, cooling rates are respectively 25-35 DEG C/h, 35-45 DEG C/h, 15-25 DEG C/h, and finally ...

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Номер записи: 10
06-02-2013 дата публикации

Control method for cracks of continuous casting slabs of Cr-contained low alloy steel TDC76

Номер: CN102909334A
Автор: Zhou Yan, Liu Ping, Hao Zhenyu, Bai Guojun, Song Juntao, Li Deyue, Feng Yanqing
Принадлежит:

The invention relates to a control method for cracks of continuous casting slabs of Cr-contained low alloy steel TDC76. The control method is characterized in that molten steel at the end point of a converter contains 0.04%-0.19% of carbon and 0.010%-0.020% of phosphorus according to mass percent, and the tapping temperature of the converter is 1557-1637 DEG C; the refining in-place temperature of an LF (Low Frequency) furnace is 1480-1564 DEG C, and the refining off-location temperature of the LF furnace is 1598-1665 DEG C; the deep vacuum time of smelting with a VD (Vacuum Distillation) furnace is longer than 13 minutes, the deep vacuum degree of smelting with the VD furnace is not more than 0.10 Kpa, the soft blow time of smelting with the VD furnace ranges from 10 to 17 minutes, and the soft blow flow of smelting with the VD furnace is 20-99 Nl/min; the superheat degree in continuous casting production is controlled to be 20-33 DEG C, and the pull speed in the continuous casting production ...

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Номер записи: 11
22-07-2015 дата публикации

Low-cost 235 MPa grade low-temperature hot-rolling H section steel and preparation method thereof

Номер: CN104789857A
Автор: Feng Yanqing
Принадлежит:

The invention discloses low-cost 235 MPa grade low-temperature hot-rolling H section steel and a preparation method thereof. The preparation method comprises a smelting technology and a rolling technology; the H section steel comprises the following chemical components in percentage by weight: 0.12-0.17% of C, 0.15-0.30% of Si, 0.50-0.70% of Mn, no more than 0.03% of P, no more than 0.030% of S, no less than 0.020% of Alt, and the balance of Fe; the tensile strength of the H section steel is 370-500 MPa; the yield strength of the H section steel is higher than or equal to 235 MPa; the elongation percentage of the H section steel is higher than or equal to 30%; the low-temperature impact at 0 DEG C of the H section steel is higher than or equal to 100 J; the low-temperature impact at -20 DEG C is higher than or equal to 40 J.

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Номер записи: 12
26-09-2012 дата публикации

Method for determining real surface area of fracture

Номер: CN102692196A
Автор: Feng Yanqing, Gao Mingxing, Li Deyao, Zhou Yan, Bai Yueqin
Принадлежит:

The invention relates to a method for determining the real surface area of a fracture. The method is characterized by comprising the following steps of: transforming the roughness of a section contour of a metal fracture into the surface roughness of the metal fracture, obtaining the surface roughness of the metal fracture according to a relation of the roughness of the section contour of the metal fracture and the surface roughness of the metal fracture, and finally calculating to obtain the real surface area of the metal fracture according to a definition of the surface roughness of the metal fracture. The invention has the advantages that the method is simple and high in operability, can accurately determine real surface areas of metal fractures, and provides a scientific basis for determining the safety life and overhaul period of parts.

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Номер записи: 13
25-07-2012 дата публикации

Matching method for spatial information services based on context awareness and user preferences

Номер: CN102609468A
Автор: Zheng Wenfeng, Yang Yichao, Li Xiaolu, Feng Yanqing, Liu Shan, Yin Lirong
Принадлежит:

The invention discloses a matching method for spatial information services based on context awareness and user preferences. The method includes: considering context-aware user preferences on the basis of functional and non-functional matching of user service requests and candidate spatial information services, calculating matching degree of the user service requests and each candidate spatial information service in smart space, and recommending the candidate spatial information service to a user according to the matching degree. The user may have fixed or repeated preferences, but the preferences may not be relevant at any time. The matching method for spatial information services based on the context awareness and the user preferences is capable of simplifying the user preferences and eliminating irrelevant user preferences. In the mean time, by calculating the matching degree from the functional and non-functional matching, accuracy in spatial information service matching is enhanced, ...

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Номер записи: 14
30-01-2013 дата публикации

Extra-deep drawing Ti+Nb-IF steel cold rolling and annealing process

Номер: CN102899564A
Автор: Feng Yanqing, Zhang Xiaoyan, Wang Yong, Zhang Xiufei, Bai Yaqiong
Принадлежит:

The invention relates to an extra-deep drawing Ti+Nb-IF steel cold rolling and annealing process. A plate blank comprises the following chemical components according to weight percentages: less than or equal to 0.005% of C, less than or equal to 0.2% of Mn, less than or equal to 0.01% of P, less than or equal to 0.008% of S, greater than or equal to 0.015% of Alt, 0.02-0.06% of Ti, 0.018-0.041% of Nb, less than or equal to 0.006% of N and the balance of Fe and trace of impurities which cannot be detected. A cold rolling process adopts five-pass cold rolling, with the total rolling reduction of the five-pass cold rolling being 75%-82%; and an annealing treatment process comprises the following steps: two-stage heating, with the heating rate of 70-85 DEG C per hour and 30-45 DEG C per hour respectively, the annealing temperature of 700-735 DEG C, and the heat preservation time of 8-15 hours, then adopting three-stage cooling, with the cooling rate of 25-35 DEG C per hour, 35-45 DEG C per ...

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Номер записи: 15
23-01-2013 дата публикации

La-containing high-strength steel plate and heat treatment technology thereof

Номер: CN102888558A
Автор: Gao Zhiguo, Feng Yanqing, Cheng Defu, Li Peide, Kang Liming
Принадлежит:

The invention discloses a La-containing high-strength steel plate and a heat treatment technology thereof, and belongs to the technical field of heat treatment of steel materials. The La-containing high-strength steel plate comprises the following chemical components in percentage by weight: 0.14 to 0.30 percent of C, 1.5 to 2.0 percent of Mn, 0.6 to 1.0 percent of Si, less than or equal to 0.015 percent of P, less than or equal to 0.002 percent of S, 0.01 to 0.06 percent of Ti, 0.0005 to 0.0040 percent of B, 0.001 to 0.1 percent of La and the balance of Fe and inevitable impurities. According to the heat treatment technology, the austenitizing temperature is between 900 and 950 DEG C, heat preservation is performed for 0.5 to 3 hours and then water quenching is performed, the tempering temperature is between 190 and 250 DEG C, and the heat preservation time is 1 to 30 hours. The steel plate produced by the heat treatment technology has high mechanical properties, the tensile strength of ...

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Номер записи: 16
24-07-2013 дата публикации

Embedding intersection method

Номер: CN103217446A
Автор: Feng Yanqing, Gao Mingxing, Li Deyue
Принадлежит:

The invention discloses an embedding intersection method comprising the following steps of: observing the fracture morphology of a fracture metallographic specimen under a scanning electron microscope to determine the intersection manner of the fracture and the grinding position of the fracture surface; embedding an embedding material in the fracture surface; grinding the fracture surface according to the determined grinding position of the fracture surface to obtain a ground surface; corroding the ground surface through a metallographic corrosive; observing the tissues of the ground surface under an optical microscope to obtain tissue signatures; removing the embedding material in the fracture surface; and observing the tissue signatures of the intersection region and the morphology features of the fracture under the scanning electron microscope. The method disclosed by the invention is used for obtaining the direct relation between the information and the microstructure and morphology ...

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Номер записи: 17
14-04-2016 дата публикации

OMA DM Based Terminal Authentication Method, Terminal and Server

Номер: US20160105410A1
Автор: FENG Yanqing, QIAN Yuming, Zhou Liming, ZHU Kezhi
Принадлежит:

A method for implementing terminal authentication based on an OMA DM protocol, a terminal and a server are disclosed. The method includes: a terminal initiating a registration request to a target server, wherein a user name, a password and a device identifier are carried; the terminal receiving and storing an access token generated through registration; and the terminal carrying the access token and the device identifier in a message of initiating services to the target server for authentication. In the present document, user identity authentication is performed based on the access token, which brings a higher security and more convenient terminal life cycle management. 1. A method for implementing terminal authentication based on an open mobile alliance device manage protocol , comprising:a terminal initiating a registration request to a target server, wherein a user name, a password and a device identifier are carried;the terminal receiving and storing an access token generated through registration; andthe terminal carrying the access token and the device identifier in a message of initiating services to the target server for authentication.2. The method according to claim 1 , further comprising:after receiving the registration request, the target server performing encryption on the user name, the password and the device identifier to generate the access token, and sending the generated access token to the terminal.3. (canceled)4. The method according to claim 2 , further comprising:the target server generating a validity period corresponding to the access token;wherein, the step of the terminal carrying the access token and the device identifier in a message of initiating services to the target server for authentication comprises:the terminal carrying the access token and the device identifier in a request message of initiating services to the target server; andthe target server performing verification on the access token and the device identifier, if the ...

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Номер записи: 18
05-09-2012 дата публикации

Method and system for recovering video monitoring service

Номер: EP2495933A1
Автор: Ruiping Wang, Su Zhang, Yang Sun, Yanqing Feng
Принадлежит: ZTE Corp

A method and system for recovering video monitoring service are disclosed in the present invention, which belong to the video monitoring field. The method includes: dividing the fault information of POPs into different types, and formulating video monitoring service recovery measures corresponding to different types of fault information; acquiring the fault information of the current POP; executing the video monitoring service recovery measure corresponding to the fault information according to the type of the fault information. The system includes: a dividing module, an acquiring module and an executing module. The technical scheme provided by the invention can improve fault tolerance and stability of the system.

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Номер записи: 19
30-11-2023 дата публикации

Multimedia interaction

Номер: US20230388259A1
Автор: Yanqing Feng
Принадлежит: Tencent Technology Shenzhen Co Ltd

Some aspects of the disclosure provide a method of multimedia interaction. The method includes displaying, by a first terminal device that is an invitation terminal device for a multimedia acquisition, a condition configuration interface of an application that is logged in into a first account, the condition configuration interface includes condition configuration options. The method further includes determining an acquisition condition for acquiring a multimedia content in response to a configuration operation performed on the condition configuration options in the condition configuration interface, displaying at least one candidate account that matches the acquisition condition and transmitting an interaction message to a second account in response to a selection operation performed on the second account in the at least one candidate account. The interaction message indicates an invitation from the first account to the second account to acquire the multimedia content.

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Номер записи: 20
30-10-2017 дата публикации

Sistema de monitorización de video de nodos distribuidos y procedimiento de gestión del mismo

Номер: ES2639960T3
Автор: Tao Yu, Yanqing Feng
Принадлежит: ZTE Corp

Sistema de videovigilancia (100) de nodos distribuidos que comprende: una serie de nodos de servicio (102) del sistema de videovigilancia (VSS), una plataforma de gestión del centro de servicios, una serie de pre-unidades (PU) (104) y unidades de cliente (CU) (103); en el que la plataforma de gestión del centro de servicios está configurada para gestionar la serie de nodos de servicio de VSS; cada uno de los nodos de servicio de VSS conecta una PU respectiva y una CU respectiva, y está configurado para proporcionar datos para la PU respectiva y la CU respectiva; la PU está configurada para: reunir información de monitorización por video y acceder directamente al nodo de servicio de VSS al que pertenece para obtener datos; la CU está configurada para: mostrar la información de monitorización por video y acceder directamente al nodo de servicio de VSS al que pertenece para obtener datos; en el que los datos en la serie de nodos de servicio de VSS se mantienen sincronizados con los datos de la plataforma de gestión del centro de servicios; en el que la comunicación entre la CU y la PU del nodo de servicio de VSS se implementa mediante: la CU envía la información de solicitud de comunicación a un módulo de gestión de registro (RGM) del nodo de servicio de VSS al que pertenece la CU; el módulo RGM busca, en primer lugar, una PU en una base de datos de la memoria y devuelve un mensaje de respuesta a la CU si se encuentra la PU, o envía un mensaje de solicitud a una plataforma de gestión del centro de servicios si no se encuentra la PU; la plataforma de gestión del centro de servicios envía la información de solicitud al nodo de servicio de VSS en el que se registra la PU; el nodo de servicio de VSS en el que se registra la PU recibe el mensaje de solicitud y reenvía el mensaje de solicitud a la PU y, a continuación, recibe el mensaje de respuesta devuelto por la PU y reenvía el mensaje de respuesta al módulo RGM; y el módulo RGM devuelve el mensaje de respuesta recibido a ...

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Номер записи: 21