Настройки

Укажите год
-

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

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 2. Отображено 2.
03-04-2013 дата публикации

Deep-water broadband transducer with ultralow backward radiation

Номер: CN103021396A
Автор: Hao Haoqi, Xia Tiejian, Xie Min, Kong Haifang, Tang Liangyu, Su Yan, Su Shifei, Yao Chengzhang
Принадлежит:

The invention relates to a deep-water broadband transducer with ultralow backward radiation. The transducer is composed of a longitudinal bend transducer inner core, a pressure-resistant casing and a pressure-resistant reflection baffle. The longitudinal bend transducer inner core is encapsulated in the pressure-resistant casing, a layer of polyurethane is poured into the upper end of the longitudinal transducer inner core and a layer of rubber is vulcanized on the polyurethane to improve water-tightness. The transducer and the pressure-resistant reflection baffle are in an integration design, a mounting hole is formed on the center of the pressure-resistant reflection baffle and the pressure-resistant casing is fixed in the mounting hole on the pressure-resistant reflection baffle. The deep-water broadband transducer with ultralow backward radiation is characterized by ultralow backward radiation, low frequency, broadband and anti-high hydrostatic pressure, adopts the integration design ...

Подробнее
Номер записи: 1
22-07-2015 дата публикации

Large sample plate butt welding template and butt welding process

Номер: CN104785990A
Автор: Tang Liangyu, Zhang Hongsheng, Zhu Jianguo, Xu Jianguo, Chen Qiang
Принадлежит:

The invention discloses a large sample plate butt welding template and a butt welding process. The butt welding template is made of 45# steel plates, the shape of the butt welding template is formed by two rectangles with different lengths symmetrically, a long rectangular hole is formed in the middle of the connecting position of the two rectangles, and the left side and the right side of the center of the long hole are each provided with a row of nine locating holes. Two sample plates needing butt welding are placed on a planar workbench with welding joints aligned, the template is placed on the sample plates, the vertical center datum line of the template is aligned to the welding joints, the horizontal center datum line of the template is aligned to the horizontal center of the welding joints, then the sample plates are connected with the template through six selected and manufactured holes by aluminum rivets, and it is guaranteed that the positions of the welding joints of the sample ...

Подробнее
Номер записи: 2