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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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Применить Всего найдено 4. Отображено 4.
14-07-2023 дата публикации

External wall panel foundation construction structure, construction method and construction equipment

Номер: CN116427721A
Принадлежит:

The invention discloses an external wall panel foundation construction structure, construction method and construction equipment, and relates to the technical field of external wall construction.The construction equipment comprises a moving mechanism, a stabilizing auxiliary mechanism, a hanging basket, a hoisting mechanism, two anti-shaking mechanisms, a cleaning mechanism, a hanging plate mechanism and two conveying mechanisms; the hoisting mechanism is connected with the lower hanging basket and the hanging plate mounting mechanism, the hanging basket is connected with the two anti-shaking mechanisms, the cleaning mechanism is connected with the moving mechanism, the stabilizing auxiliary mechanisms are located on the left side and the right side of the moving mechanism, and the two conveying mechanisms are connected below the hoisting mechanism. The hanging basket can be prevented from shaking in the construction process, the situation that the hanging basket collides with the external ...

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11-08-2023 дата публикации

Installation method of building construction hanging basket system and overhanging aluminum plate sun-shading system

Номер: CN116575725A
Принадлежит:

The invention relates to the technical field of curtain wall engineering construction in building construction, and discloses an installation method of a building construction hanging basket system and an outward-hanging aluminum plate sun-shading system. Compared with a traditional hanging basket, the length of a front beam of the building construction hanging basket system is increased, the free end of the front beam is provided with two or more point positions for guiding ropes, the two or more point positions are distributed in the extending direction of the front beam, and each point position corresponds to one rope. Or the point position of the guide rope on the front beam can be adjusted along the extension direction of the front beam; the installation method of the overhanging aluminum plate sun-shading system comprises the steps that an aluminum plate framework and an aluminum plate are installed at the position, closer to the side of a building, of a hanging basket, and a heat ...

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08-06-2011 дата публикации

Roll forming method of iron-based high-temperature alloy high cylinder ring forging

Номер: CN0102085551A
Принадлежит:

The invention discloses a roll forming method of an iron-based high-temperature alloy high cylinder ring forging. In order to roll-form a high cylinder ring forging with thin wall and excellent tissue and performance, the technical scheme comprises the steps of: firstly, sleeving a preheated follower die sleeve and a titanium alloy pre-rolled blank heated to a deformation temperature in a ring rolling mill, and positioning the two workpieces by using a main roll, a core roll, clutching rolls, an upper cone roll and a lower cone roll of the ring rolling mill; and starting the ring rolling mill, making a feeding motion by the core roll towards the direction of the main roll along the radial direction and rolling the pre-rolled blank in the follower die sleeve at a rolling force of 380-4300KN by the core roll together with the main roll to ensure that the pre-rolled blank expands radially at a speed of 3-10mm/s, wherein the wall thickness is gradually reduced, the pre-rolled blank is rolled ...

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18-08-2010 дата публикации

Roll forming method of large and medium-size structural steel hollow disk-shaped forgings

Номер: CN0101804439A
Принадлежит:

The invention discloses a roll forming method of large and medium-size structural steel hollow disk-shaped forgings, comprising the following steps of: firstly preparing structural steel bar stocks into hollow disk blanks through upsetting, profiling and punching, and then feeding the disk blanks into a rolling mill for rolling; broadening the disk blanks at the speed of 5-12 mm/s under the axial rolling force of 4500 kN-4900 kN within the rolling time of 60s and at the axial feeding speed of 1.5 mm/s; broadening the disk blanks at the speed of 3-10 mm/s under the axial rolling force of 3000 kN-3900 kN and the radial rolling force of 3500 kN-4000 kN within the rolling time of 60s-100s and at the axial feeding speed of 1.2 mm/s; and broadening the disk blanks at the speed of 2-6 mm/s under the axial rolling force of 200 kN-3000 kN and the radial rolling force of 2500 kN-3000 kN within the rolling time of 100-120s and at the axial feeding time of 0.8 mm/s, and then rolling the disk blanks ...

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