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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 11. Отображено 11.
26-10-2011 дата публикации

Method for refining Mg-Al-based alloy by using nano zinc oxide

Номер: CN0101760660B
Автор: HAO SHIMING, LI SONG, PEI WENLI, QIN GAOWU, REN YUPING, SHIMING HAO, SONG LI, WENLI PEI, GAOWU QIN, YUPING REN
Принадлежит:

The invention relates to a method for refining a Mg-Al-based alloy by using nano zinc oxide, which comprises the following steps: (1), preparing aqueous solution of ZnSO4 and solution of NaOH; (2), adding aqueous solution of ZnSO4 dropwise into solution of sodium hydroxide; (3), placing mixed solution in an ultrasonic cleaner for vibrating and stirring for 2 to 3h; (4) centrifuging at a speed of 5,000 to 6,000rpm, cleaning a solid phase after centrifugation, drying and removing water to obtain a nano zinc oxide crystal particle refiner; and (5) placing the crystal particle refiner in a Mg-Al-based alloy melt when the temperature of the Mg-Al-based alloy melt is between 690 and 720 DEG C, stirring uniformly and standing the mixture. The nano zinc oxide is added into the Mg-Al-based alloy melt, the nano zinc oxide refines crystal particles of the Mg alloy through heterogeneous nucleation. The method can easily control the refining effect by adjusting the additive amount, and achieve good ...

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Номер записи: 1
30-06-2010 дата публикации

Method for refining Mg-Al-based alloy by using nano zinc oxide

Номер: CN0101760660A
Автор: HAO SHIMING, LI SONG, PEI WENLI, QIN GAOWU, REN YUPING, SHIMING HAO, SONG LI, WENLI PEI, GAOWU QIN, YUPING REN
Принадлежит:

The invention relates to a method for refining a Mg-Al-based alloy by using nano zinc oxide, which comprises the following steps: (1), preparing aqueous solution of ZnSO4 and solution of NaOH; (2), adding aqueous solution of ZnSO4 dropwise into solution of sodium hydroxide; (3), placing mixed solution in an ultrasonic cleaner for vibrating and stirring for 2 to 3h; (4) centrifuging at a speed of 5,000 to 6,000rpm, cleaning a solid phase after centrifugation, drying and removing water to obtain a nano zinc oxide crystal particle refiner; and (5) placing the crystal particle refiner in a Mg-Al-based alloy melt when the temperature of the Mg-Al-based alloy melt is between 690 and 720 DEG C, stirring uniformly and standing the mixture. The nano zinc oxide is added into the Mg-Al-based alloy melt, the nano zinc oxide refines crystal particles of the Mg alloy through heterogeneous nucleation. The method can easily control the refining effect by adjusting the additive amount, and achieve good ...

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Номер записи: 2
20-07-2011 дата публикации

Bi base high-temperature leadless soft solder

Номер: CN0101380702B
Автор: YAN YANFU, LIU SHUYING, ZHANG ZHONGLI, WANG GUOXIN, HAO SHIMING, FENG LIFANG, SONG KEXING, ZHAO PEIFENG, CHEN XINFANG, TANG KUN, ZHANG KEKE, YANFU YAN, SHUYING LIU, ZHONGLI ZHANG, GUOXIN WANG, SHIMING HAO, LIFANG FENG, KEXING SONG, PEIFENG ZHAO, XINFANG CHEN, KUN TANG, KEKE ZHANG
Принадлежит:

The invention relates to a Bi-based high-temperature lead-free soft solder and a preparation method, which belong to the soldering technology for encapsulation. The material components of the Bi-based high-temperature lead-free soft solder include: 80 to 90wt percent of Bi, 2 to 8wt percent of Sb as well as 2 to 12wt percent of Sn; the prescription components also comprise at least one from mixedrare earth lanthanum and neodymium with the content of 0.05 to 1.5wt percent. The melting point of the Bi-based high-temperature lead-free soft solder is between 250 and 450 DEG C; besides, the Bi-based high temperature lead-free soft solder has the advantage of good spreading and wetting performance, high intensity and good corrosion resistance; the Bi-based high-temperature lead-free soft solder can adapt the demands of various technologies, environments and artificial factors in the electron industry which is continuously developed.

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Номер записи: 3
14-04-2010 дата публикации

Mg-Al-based alloy Al-Mn grain refiner, preparation method and using method thereof

Номер: CN0101693969A
Автор: Qin Gaowu, Ren Yuping, Pei Wenli, Hao Shiming, Jiang Min, Li Hongxiao, Zuo Liang
Принадлежит:

The invention relates to an Mg-Al-based alloy Al-Mn grain refiner, a preparation method and a using method thereof. The refiner comprises the components by weight percent: 25-35% of Al and 65-75% of Mn. The preparation method comprises the following steps: (1) blending according to the weight percent of the components of the grain refiner, adding excess metal Mn and obtaining mixed metal; (2) washing the mixed metal; (3) putting the washed mixed metal into an electric arc furnace, vacuumizing and filling argon gas into the electric arc furnace for smelting for four times; and (4) putting the mixed metal inside a closed container, vacuumizing and filling argon gas into the container, heating and carrying out heat preservation for 24-72h, and finally taking out and water quenching. The using method comprises the steps of adding the Al-Mn grain refiner in the liquid, evenly stirring and standing for 20-60min when Mg-Al-based alloy melt liquid is at the temperature of 700-750 DEG C. The preparation ...

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Номер записи: 4
01-02-2012 дата публикации

Complete and high-resolution test method for motion characteristics of particles in turbid media

Номер: CN0101980000B
Автор: LI XINZHONG, TAI YUPING, HAO SHIMING, WANG HUIXIAN, LIU HUIHUI, CHEN QINGDONG, LI LIBEN, XINZHONG LI, YUPING TAI, SHIMING HAO, HUIXIAN WANG, HUIHUI LIU, QINGDONG CHEN, LIBEN LI
Принадлежит:

The invention discloses a complete and high-resolution test method for the motion characteristics of particles in turbid media. The method comprises the following steps of: performing continuous, complete and real-time detection on the motion characteristics of the particles in the process of 'solution-colloid-sediment' of the turbid media by combining the resolution relation between the characteristic value of a speckle pattern and particle motion and utilizing a dynamic speckle test light path according to the particle light scattering theory; simultaneously, performing transient study on different critical points of the particle motion in the process by using a femtosecond laser test light path to perform the analysis of high spatial and temporal resolution on transient dynamics of theparticles in the turbid media; and combining the two steps to realize the complete test with high spatial and temporal resolution characteristic on motion images of the particles in the process of 'solution-colloid-sediment ...

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Номер записи: 5
25-05-2011 дата публикации

Mg-Al-based alloy Al-Mn grain refiner, preparation method and using method thereof

Номер: CN0101693969B
Автор: QIN GAOWU, REN YUPING, PEI WENLI, HAO SHIMING, JIANG MIN, LI HONGXIAO, ZUO LIANG, GAOWU QIN, YUPING REN, WENLI PEI, SHIMING HAO, MIN JIANG, HONGXIAO LI, LIANG ZUO
Принадлежит:

The invention relates to an Mg-Al-based alloy Al-Mn grain refiner, a preparation method and a using method thereof. The refiner comprises the components by weight percent: 25-35% of Al and 65-75% of Mn. The preparation method comprises the following steps: (1) blending according to the weight percent of the components of the grain refiner, adding excess metal Mn and obtaining mixed metal; (2) washing the mixed metal; (3) putting the washed mixed metal into an electric arc furnace, vacuumizing and filling argon gas into the electric arc furnace for smelting for four times; and (4) putting the mixed metal inside a closed container, vacuumizing and filling argon gas into the container, heating and carrying out heat preservation for 24-72h, and finally taking out and water quenching. The using method comprises the steps of adding the Al-Mn grain refiner in the liquid, evenly stirring and standing for 20-60min when Mg-Al-based alloy melt liquid is at the temperature of 700-750 DEG C. The preparation ...

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Номер записи: 6
05-10-2005 дата публикации

Drill stem oil pipe or sucker rod marking method

Номер: CN0001676864A
Автор: LI JIANPING, HAN ENHOU, HAO SHIMING, ZHANG FAN, AN BAIGANG, LIU FUCHUN, SUN JUN, JIANPING LI, ENHOU HAN, SHIMING HAO, FAN ZHANG, BAIGANG AN, FUCHUN LIU, JUN SUN
Принадлежит:

This invention involves the marking technology, one kind of drill rod oil tube or the oil extraction rod marking method. This invention is equipped with the ring structure the carrier, carries the product information the code content, then sets it into oil tube or tube-pole connect center; states the ring structure carrier and connect between in the closer way; States the ring structure carrier with tube-pole between which remains a gap. This invention can realize the marking time which is long, the cost is low, and may work under the adverse circumstance goal.

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Номер записи: 7
14-04-2010 дата публикации

Al-Co grain refiner of Mg-Al-based alloy, preparation method and using method thereof

Номер: CN0101693957A
Автор: Qin Gaowu, Ren Yuping, Pei Wenli, Hao Shiming, Jiang Min, Li Hongxiao, Zuo Liang
Принадлежит:

The invention relates to an Al-Co grain refiner of Mg-Al-based alloy, a preparation method and a using method thereof. The refiner comprises the components by weight percent: 20-34% of Al and 66-80% of Co which have the grain diameter of 25-35mu m. The preparation method comprises the following steps: (1) blending according to the weight percent of the components of the Al-Co grain refiner: 20-34% of Al and 66-80% of Co, and obtaining mixed metal; (2) washing the mixed metal; and (3) putting the washed mixed metal into an electric arc furnace, vacuumizing and filling argon gas into the electric arc furnace for smelting for four times, and finally crushing into grains with the grain diameter of 25-35mu m by a physical method. The preparation method and the using method of the Al-Co grain refiner of the Mg-Al-based alloy are simple, and the volume of addition and the refining effect of the Al-Co grain refiner are easily controlled, so that the aim of very good refining can be achieved by ...

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Номер записи: 8
23-02-2011 дата публикации

Complete and high-resolution test method for motion characteristics of particles in turbid media

Номер: CN0101980000A
Автор: XINZHONG LI, YUPING TAI, SHIMING HAO, HUIXIAN WANG, HUIHUI LIU, QINGDONG CHEN, LIBEN LI, LI XINZHONG, TAI YUPING, HAO SHIMING, WANG HUIXIAN, LIU HUIHUI, CHEN QINGDONG, LI LIBEN
Принадлежит:

The invention discloses a complete and high-resolution test method for the motion characteristics of particles in turbid media. The method comprises the following steps of: performing continuous, complete and real-time detection on the motion characteristics of the particles in the process of 'solution-colloid-sediment' of the turbid media by combining the resolution relation between the characteristic value of a speckle pattern and particle motion and utilizing a dynamic speckle test light path according to the particle light scattering theory; simultaneously, performing transient study on different critical points of the particle motion in the process by using a femtosecond laser test light path to perform the analysis of high spatial and temporal resolution on transient dynamics of the particles in the turbid media; and combining the two steps to realize the complete test with high spatial and temporal resolution characteristic on motion images of the particles in the process of 'solution-colloid-sediment ...

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Номер записи: 9
06-04-2011 дата публикации

Al-Co grain refiner of Mg-Al-based alloy, preparation method and using method thereof

Номер: CN0101693957B
Автор: QIN GAOWU, REN YUPING, PEI WENLI, HAO SHIMING, JIANG MIN, LI HONGXIAO, ZUO LIANG, GAOWU QIN, YUPING REN, WENLI PEI, SHIMING HAO, MIN JIANG, HONGXIAO LI, LIANG ZUO
Принадлежит:

The invention relates to an Al-Co grain refiner of Mg-Al-based alloy, a preparation method and a using method thereof. The refiner comprises the components by weight percent: 20-34% of Al and 66-80% of Co which have the grain diameter of 25-35[mu]m. The preparation method comprises the following steps: (1) blending according to the weight percent of the components of the Al-Co grain refiner: 20-34% of Al and 66-80% of Co, and obtaining mixed metal; (2) washing the mixed metal; and (3) putting the washed mixed metal into an electric arc furnace, vacuumizing and filling argon gas into the electric arc furnace for smelting for four times, and finally crushing into grains with the grain diameter of 25-35[mu]m by a physical method. The preparation method and the using method of the Al-Co grain refiner of the Mg-Al-based alloy are simple, and the volume of addition and the refining effect of the Al-Co grain refiner are easily controlled, so that the aim of very good refining can be achieved by ...

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Номер записи: 10
07-09-2005 дата публикации

Expansion coefficient controllable copper base alloy with high conductivity and method for preparation thereof

Номер: CN0001664136A
Автор: WANG JIJIE, LIU YANDONG, ZUO LIANG, LIAN FAZENG, HAO SHIMING, JIJIE WANG, YANDONG LIU, LIANG ZUO, FAZENG LIAN, SHIMING HAO
Принадлежит:

A copper base alloy with high conductivity and controllable coefficient of dilatation and manufacturing process, which belong to technique field of modifying physical arrangement of non-ferro metals or alloy by heat working or cold working. Alloying component: Atomic percentage of Cu-Al-Mn alloy is 10í½25atúÑ of Al and 5í½15atúÑ of Mn; atomic percentage of Cu-Zn-Al alloy is 10í½30atúÑ of Zn and 5í½20atúÑ of Al. Method of production comprises three important steps: hot rolling motherboard of alloy to required thickness in temperature between 800í½900 Deg. C, solid solution treatment and heat hardening under one temperature value in the range of 600í½900 Deg. C and cold rolling or 90 deg. tandem cold rolling under room temperature according to overcall alendaring rate.

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Номер записи: 11