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    • 43. 发明授权
    • Method and apparatus for directionally solidified casting
    • 定向凝固铸造的方法和装置
    • US06868893B2
    • 2005-03-22
    • US10305196
    • 2002-11-27
    • Sachio ShimohataYuichi OhtaniTatsuya OhiraIkuo Okada
    • Sachio ShimohataYuichi OhtaniTatsuya OhiraIkuo Okada
    • F02C7/00B22D27/04
    • B22D27/045
    • Provided is a directional solidification casting apparatus capable of heightening a cooling effect when molten material poured in a mold is directionally solidified. A mold (20) disposed around a predetermined area is drawn out from a heating chamber (10) heated above a melting temperature of metals for producing a casting (31), and molten metals (32) held in a cavity (21) of the mold (20) are directionally solidified. The directional solidification casting apparatus (100) comprises a driving rod (42) by which the mold (20) is drawn out from the heating chamber (10), a gas nozzle (52b) through which a cooling gas is jetted from inside a predetermined area where the mold (20) is disposed so as to rapidly cool the mold (20), and a gas nozzle (52a) through which a cooling gas is jetted from outside the predetermined area where the mold (20) is disposed so as to rapidly cool the mold (20). A baffle (15) that does not move even when the driving rod (42) moves up and down is additionally provided. The baffle (15) blocks radiant heat emitted from the heating chamber (10).
    • 本发明提供一种定向凝固铸造装置,其能够在浇铸在模具中的熔融材料定向凝固时提高冷却效果。 设置在预定区域周围的模具(20)从用于制造铸件(31)的金属的熔化温度以上的加热室(10)被拉出,并且熔融金属(32)保持在 模具(20)定向凝固。 定向凝固铸造装置(100)包括:驱动杆(42),通过该驱动杆将模具(20)从加热室(10)中抽出;气体喷嘴(52b),冷却气体从预定 模具(20)设置为快速冷却模具(20)的区域,以及气体喷嘴(52a),冷却气体从设置有模具(20)的预定区域的外侧喷出,从而 快速冷却模具(20)。 附加地设置即使当驱动杆(42)上下移动时也不移动的挡板(15)。 挡板(15)阻挡从加热室(10)发射的辐射热。
    • 44. 发明授权
    • X-ray source
    • X射线源
    • US4771447A
    • 1988-09-13
    • US857112
    • 1986-04-29
    • Yasunao SaitohIkuo OkadaHideo Yoshihara
    • Yasunao SaitohIkuo OkadaHideo Yoshihara
    • G03F7/20H05G2/00H05H1/34
    • H05G2/003B82Y10/00G03F7/70033G03F7/70808
    • In a gas injection type plasma X-ray source, a through hole communicated with vacuum is provided in each one of a pair of plasma-forming electrodes. This leads to a decrease in the dose of charged particles, a high temperature gas, etc. reflected from the upper electrode and inflicting damage on an X-ray extraction window. Accordingly, the thickness of the X-ray extraction window can be so decreased as to raise the X-ray extraction efficiency. Besides, evacuation of a space between the electrodes can be quickened. Accordingly, X-ray emission can be effected at a high repetition frequency. When the normal line direction of the electrode is inclined relative to the direction of the X-ray extraction, the effects mentioned above are enhanced.
    • 在气体注入型等离子体X射线源中,在一对等离子体形成电极中的每一个中设置有与真空连通的通孔。 这导致从上电极反射的带电粒子,高温气体等的剂量下降,并在X射线提取窗口上造成损伤。 因此,为了提高X射线提取效率,可以使X射线提取窗口的厚度减小。 此外,可以加快电极之间的空间的抽真空。 因此,可以以高重复频率进行X射线发射。 当电极的法线方向相对于X射线提取的方向倾斜时,上述效果增强。