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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 4. Отображено 4.
31-01-2019 дата публикации

FIBER-REINFORCED CASTING WAX PRODUCT

Номер: US20190030590A1
Принадлежит:

A casting wax product including a casting wax and fibers distributed within the casting wax. The casting wax may be a standard casting wax. The currently preferred volume percent of the fibers is no more than 5%. The currently preferred aspect ratio of the fibers is between 10:1 and 25:1. The preferred fiber material is organic. Among other qualities, the casting wax product has improved slump resistance, improved rigidity, and improved strength. 1. A casting wax product comprising:a casting wax; anda plurality of fibers within the casting wax.2. A casting wax product as defined in wherein the fibers are organic fibers.3. A casting wax product as defined in wherein the fibers comprise no more than approximately 5% by volume of the product.4. A casting wax product as defined in wherein the fibers comprise 2% to 3% by volume of the product.5. A casting wax product as defined in wherein the organic fibers include at least one of polyester claim 2 , polyamide claim 2 , and rayon.6. A casting wax product as defined in wherein the length of the fibers is less than or equal to approximately 1 mm.7. A casting wax product as defined in wherein the diameters of the fibers are in the range of 6 microns to 20 microns.8. A casting wax product as defined in wherein the aspect ratio of the fibers is between 5:1 and 55:1 inclusive.9. A casting wax product as defined in wherein the aspect ratio of the fibers is between 15:1 and 20:1 inclusive.10. A method of manufacturing a casting wax product comprising:providing a casting wax; andreinforcing the casting wax with a plurality of fibers.11. A method as defined in wherein the fibers are organic fibers.12. A method as defined in wherein the fibers comprise no more than approximately 5% by volume of the casting wax product.13. A method as defined in wherein the fibers comprise 2% to 3% by volume of the casting wax product.14. A method as defined in wherein the organic fibers include at least one of polyester claim 11 , polyamide claim ...

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15-11-2002 дата публикации

Treatment of aluminum based porous ceramic cores used for casting metallic materials involves impregnating the core with yttrium oxide to improve the resistance to sliding at the elevated casting temperature

Номер: FR2824554A1
Принадлежит: Howmet Research Corp

The treatment of an aluminum based ceramic core consists of impregnating the core with yttrium oxide to improve the resistance to sliding at the elevated casting temperature. The impregnation can be carried out by immersion in yttrium oxide or in a medium incorporating a precursor of yttrium oxide. The core may be made from a mixture of alumina and yttrium oxide particles. An Independent claim is also included for a fired, porous aluminum based core impregnated with yttrium oxide.

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24-12-2002 дата публикации

Yttria impregnated porous alumina core

Номер: GB2376652A
Принадлежит: Howmet Research Corp

A fired porous alumina-based ceramic core for use in casting metal is impregnated with yttria. Impregnation may be performed by immersion of the fired core in colloidal yttria or in a medium containing a yttria precursor, e.g. solutions containing yttrium salts or yttrium metal-organics such as yttrium acetate, yttrium nitrate, yttrium carbonate or yttrium alkoxide. After impregnation the core is dried. The yttria impregnant preferably accounts for about 1-5 % by weight of the core.

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17-12-2002 дата публикации

Impregnated alumina-based core and method

Номер: US6494250B1
Принадлежит: Howmet Research Corp

An impregnated fired porous alumina-based ceramic core for use in an investment shell mold in the casting of molten metals and alloys wherein the core is impregnated with yttria to improve core creep resistance at elevated casting temperatures and times.

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