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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 2. Отображено 2.
22-04-2009 дата публикации

Electron beam cold hearth melting recovery method for titanium and titanium alloy chip scrap

Номер: CN0101413061A
Принадлежит:

The invention provides an electron beam cold hearth melting recovery method for titanium and titanium alloy chip-shaped waste. The method comprises a process that according to components of melted titanium and titanium alloy, pure titanium chip-shaped waste is weighed, or a mixture of one or two species of pure titanium chip-shaped waste and titanium alloy chip-shaped waste with sponge titanium and pure alloy additive elements and/or master alloy is weighed; the addition amount of pure titanium and titanium alloy chip-shaped waste in the mixture is counted as 10 to 90 percent according to mass percentage; the mixture is pressed to be an electrode block; and the electrode block is subjected to electron beam cold hearth melting once by use of an electron beam cold hearth melting furnace, so as to obtain a titanium or titanium alloy ingot. The method can utilize up to 100 percent of pure titanium chip-shaped waste to produce a qualified pure titanium ingot, or utilize up to 90 percent of titanium ...

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01-04-2015 дата публикации

Preparation method of high-purity niobium ingot casting for radio frequency superconducting cavity

Номер: CN104480319A
Принадлежит:

The invention discloses a preparation method of a high-purity niobium ingot casting for a radio frequency superconducting cavity. The preparation method comprises performing vacuum electronic torch melting on a niobium batten for 3-7 times, thereby obtaining the high-purity niobium ingot casting; the specific electric energy of the vacuum electronic torch melting is 8-12 degrees per kilometer, and the vacuum degree of the vacuum electronic torch melting is not greater than 5*10<-3>Pa. The preparation method is reasonable in design, simple, simple and convenient to operate; the practical problems existing in the traditional niobium ingot casting production process can be effectively solved and the requirements on stabilized and large-scale production of the high-purity niobium ingot casting for the radio frequency superconducting cavity are met; the vacuum electronic torch melting is performed for 3-7 times, and by controlling the specific electric energy, the RRR value and the components ...

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