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    • 5. 发明授权
    • Titanium orthodontic appliances
    • 钛矫正器具
    • US5947723A
    • 1999-09-07
    • US54927
    • 1993-04-28
    • Mikio MottateMasaaki OrikasaKikuo Nishi
    • Mikio MottateMasaaki OrikasaKikuo Nishi
    • A61C7/12A61K6/04C22C14/00A61C3/00
    • C22C14/00A61C7/12
    • Orthodontic appliances formed of a titanium alloy which substantially avoids toxic or allergic reactions in patients containing a .beta.-stabilizing element including at least 12 wt % molybdenum to produce a stable .beta.-monophase at body temperature are disclosed. The yield strength of the titanium alloy is within the range 1150 to 1450 MPa. The tensile strength of the titanium alloy is within the range 1350 to 1950 MPa. The elongation of the titanium alloy is within the range 10 to 14%. The titanium alloy may also contain about 5 wt % zirconium as another .beta.-stabilizing element. It may also contain about 3 wt % aluminum to improve age hardenability by strengthening the .alpha.-phase.
    • 公开了一种由钛合金形成的矫正器具,其基本上避免了含有至少12重量%钼的β稳定元素的患者在体温下产生稳定的β-单相酶的有毒或过敏反应。 钛合金的屈服强度在1150〜1450MPa的范围内。 钛合金的拉伸强度在1350〜1950MPa的范围内。 钛合金的伸长率在10〜14%的范围内。 钛合金还可以含有约5重量%的锆作为另一个β-稳定元素。 它还可以含有约3重量%的铝以通过加强α-相来改善老化淬透性。