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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 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 7. Отображено 7.
26-01-2011 дата публикации

Method for improving slag inclusion inside magnesium alloy ingot

Номер: CN0101956089A
Автор: ZHAI SHENBAO, CHAI SHAOCHUN, REN JIANJUN, SUN QIMING, WU ZHONGWEN, WANG ZENGWEI, SHENBAO ZHAI, SHAOCHUN CHAI, JIANJUN REN, QIMING SUN, ZHONGWEN WU, ZENGWEI WANG
Принадлежит:

The invention provides a method for improving slag inclusion inside a magnesium alloy ingot, belonging to the technical field of magnesium alloy casting. The method comprises a step of smelting, and is characterized in that the smelting process is performed in a non-opening mixer, and refining flux is added; the refining flux is mixed by the following components in percentage by weight: 20 to 35 percent of MgCl, 16 to 29 percent of KCl, 8 to 12 percent of BaCl2, 14 to 24 percent of CaF2, and 14 to 27 percent of MgF2. The method of the invention can effectively improve the condition of the slag inclusion inside the magnesium alloy ingot; and the products prepared by the method of the invention are subject to a constant temperature of 32 DEG C and constant humidity test, and the number of the slag inclusion of the sample is less than 3, which accords to related quality requirement.

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Номер записи: 1
26-01-2011 дата публикации

High-efficiency multi-element magnesium alloy sacrificial anode and preparation method thereof

Номер: CN0101956197A
Автор: ZHAI SHENBAO, ZHOU JING, SUN QIMING, WANG ZENGWEI, WU ZHONGWEN, LI YANTAO, SHENBAO ZHAI, JING ZHOU, QIMING SUN, ZENGWEI WANG, ZHONGWEN WU, YANTAO LI
Принадлежит:

The invention relates to an anticorrosive material of a sacrificial anode, in particular to a high-efficiency multi-element magnesium alloy sacrificial anode. The high-efficiency multi-element magnesium alloy sacrificial anode is characterized in that the materials consist of the following elements in percentage by weight: 0.5-1.5 percent of Mn, 0.05-0.105 percent of Zn, 0.0073-0.0085 percent of Ca, less than 0.007 percent of Al, less than 0.007 percent of Fe, less than 0.0008 percent of Ni, less than 0.012 percent of Si, less than 0.009 percent of Cu, and the balance of Mg. The anticorrosive material is simple in preparation method and easy in implementation, the prepared multi-element magnesium alloy has refined crystal, the point position of an open circuit is high (between -1.7V and -1.8V), and the current efficiency is high and reaches 50-62 percent.

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Номер записи: 2
11-05-2011 дата публикации

Bent pipe manufacturing equipment and using method thereof

Номер: CN0102049437A
Автор: SHENBAO ZHAI, ZHONGWEN WU, ZENGWEI WANG, QIMING SUN, ZHAI SHENBAO, WU ZHONGWEN, WANG ZENGWEI, SUN QIMING
Принадлежит:

The invention relates to bent pipe manufacturing equipment and a using method thereof, wherein the bent pipe manufacturing equipment is characterized in that a bracket is provided with a first guide rod and a second guide rod, wherein the second guide rod is positioned below the first guide rod; a pipe to be bent is placed between the first guide rod and the second guide rod; the second guide rod is provided with an R-shaped groove with the same diameter as the pipe to be bent; an oil pressure jack is fixed at one side of the bracket; a chain block is arranged at the top of the bracket; and a manual chain of the chain block is connected with the pipe to be bent and the oil pressure jack. The corresponding using method of the bent pipe manufacturing equipment comprises the following steps: putting sand into the pipe to be bent; blocking the two ends of the pipe to be bent and heating the pipe to be bent; placing the pipe to be bent between the first guide rod and the second guide rod so ...

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Номер записи: 3
10-03-2010 дата публикации

Mg-Mn-Ca-Zn-Sr sacrificial anode with high current efficiency

Номер: CN0101665944A
Автор: ZHAI SHENBAO, WANG ZAIFENG, WU ZHONGWEN, SUN QIMING, SHENBAO ZHAI, ZAIFENG WANG, ZHONGWEN WU, QIMING SUN
Принадлежит:

The invention discloses an Mg-Mn-Ca-Zn-Sr sacrificial anode with high current efficiency, which belongs to the technical field of sacrificial anodes and is characterized by comprising the following elements in percentage by weight: 0.93 percent of Mn, 0.13 percent of Ca, 0.05 percent of Zn, 0.07 percent of Sr, less than 0.045 percent of Si, less than 0.018 percent of Cu, less than 0.001 percent ofNi, less than 0.030 percent of Fe, and the balance of Mg. Aiming at the defect that the conventional magnesium anode has low current efficiency, by adding trace elements, the dissolution evenness andcorrosion resistance of the magnesium anode are increased, and the current efficiency of the magnesium anode is improved.

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Номер записи: 4
15-06-2011 дата публикации

Mg-Mn-Ca-Zn-Sr sacrificial anode with high current efficiency

Номер: CN0101665944B
Автор: ZHAI SHENBAO, WANG ZAIFENG, WU ZHONGWEN, SUN QIMING, SHENBAO ZHAI, ZAIFENG WANG, ZHONGWEN WU, QIMING SUN
Принадлежит:

The invention discloses an Mg-Mn-Ca-Zn-Sr sacrificial anode with high current efficiency, which belongs to the technical field of sacrificial anodes and is characterized by comprising the following elements in percentage by weight: 0.93 percent of Mn, 0.13 percent of Ca, 0.05 percent of Zn, 0.07 percent of Sr, less than 0.045 percent of Si, less than 0.018 percent of Cu, less than 0.001 percent of Ni, less than 0.030 percent of Fe, and the balance of Mg. Aiming at the defect that the conventional magnesium anode has low current efficiency, by adding trace elements, the dissolution evenness and corrosion resistance of the magnesium anode are increased, and the current efficiency of the magnesium anode is improved.

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Номер записи: 5
18-05-2011 дата публикации

Semicircular arc glass reinforced plastic die and manufacturing method thereof

Номер: CN0102059757A
Автор: SHENBAO ZHAI, ZHONGWEN WU, ZENGWEI WANG, QIMING SUN, ZHAI SHENBAO, WU ZHONGWEN, WANG ZENGWEI, SUN QIMING
Принадлежит:

The invention relates to a semicircular arc glass reinforced plastic die and a manufacturing method thereof. The semicircular arc glass reinforced plastic die is characterized by comprising a bracket, wherein a semicircular die is fixed on the bracket, two ends of the die are provided with folded edges, and a support frame is arranged between the die and the bracket. The manufacturing method for the semicircular arc glass reinforced plastic die comprises the following steps of: a, placing an iron plate on the bracket; b, coiling the iron plate into a semicircular structure, and arranging the support frame between the die and the bracket, wherein the folded edges of the semicircular structure are 5 centimeters; c, molding the bottom folded edge of the semicircular structure at intervals of 30 centimeters by using flat iron reinforcing nodes, and then reshaping and welding firmly; and d, leveling and polishing the external circular arc of the semicircular structure by using putty. Because ...

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Номер записи: 6
26-01-2011 дата публикации

Prevention method of surface heat cracks of magnesium alloy cast ingot

Номер: CN0101954465A
Автор: ZHAI SHENBAO, SUN QIMING, WU ZHONGWEN, WANG ZENGWEI, CHAI SHAOCHUN, REN JIANJUN, SHENBAO ZHAI, QIMING SUN, ZHONGWEN WU, ZENGWEI WANG, SHAOCHUN CHAI, JIANJUN REN
Принадлежит:

The invention relates to a prevention method of surface heat cracks of a magnesium alloy cast ingot, belonging to technical field of magnesium alloy casting. The prevention method of surface heat cracks of the magnesium alloy cast ingot comprises the steps of pulling the ingot at an ingot-pulling speed of 40-50 mm/min, cooling at a cooling water quantity of 350-400 L/min and casting at a casting temperature of 720-730 DEG C. The method of the invention can reduce the generating possibility of the cast ingot cracks. Proved by tests, by adopting the method of the invention, the crack-free rate is larger than 95 percent.

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Номер записи: 7