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    • 10. 发明授权
    • Glass fiber having compositions of alumina-lanthana and made from undercooled molten materials
    • 具有氧化铝 - 氧化镧组成并由过冷的熔融材料制成的玻璃纤维
    • US06484539B1
    • 2002-11-26
    • US09111638
    • 1998-07-08
    • Paul C. NordineJ. K. Richard WeberJohn J. Felten
    • Paul C. NordineJ. K. Richard WeberJohn J. Felten
    • D02G318
    • C03C13/00C03B37/02C03C13/006Y10T428/2913
    • The present invention provides a method for drawing fibers from materials which exhibit low viscosities at the equilibrium melting temperature. Further, the present invention provides novel drawn fibers from materials which were thought to be incompatible with a fiber-drawing process. The present invention also provides a means of minimizing recrystallization of molten materials during fiber drawing. Still further, the present invention provides novel drawn fibers with a greater tensile strength and greater concentrations of additives as compared to prior art fibers. Lastly, the present invention provides a means for producing crystalline fibers with controlled chemical compositions, and fibers with high tensile strengths as compared to prior art fibers of the same composition. The present invention achieves these objectives by heating the desired materials until a liquid melt is formed, undercooling the melt until the proper viscosity is reached, initiating fiber drawing by inserting a “stinger” into the molten material, then finally drawing the fibers at the desired speed so that fibers of the desired composition and diameter are formed. If desired, crystalline fibers can be formed by heating the drawn fibers until crystallization occurs. The present invention also provides for drawing fibers from a melt under either containerless conditions or within a container.
    • 本发明提供了一种在平衡熔融温度下显示低粘度的材料的纤维的方法。 此外,本发明提供了被认为与纤维拉伸工艺不相容的材料的新型拉伸纤维。 本发明还提供了一种在纤维拉伸期间最小化熔融材料的再结晶的方法。 此外,与现有技术的纤维相比,本发明提供了具有更大拉伸强度和更高浓度添加剂的新型拉伸纤维。 最后,本发明提供了具有受控化学组成的结晶纤维和具有相同组成的现有技术纤维的具有高拉伸强度的纤维的方法。 本发明通过加热所需的材料直到形成液体熔体,使熔体过冷直到达到适当的粘度来实现这些目的,通过将“管刺”插入到熔融材料中来启动纤维拉伸,然后最终将纤维拉伸到所需的 使得形成所需组成和直径的纤维。 如果需要,可以通过加热拉伸纤维形成结晶纤维,直到发生结晶。 本发明还提供在无容器条件下或在容器内从熔体中抽出纤维。