Hard facing chromium-base alloys
    1.
    发明授权
    Hard facing chromium-base alloys 失效
    硬面铬基合金

    公开(公告)号:US5425822A

    公开(公告)日:1995-06-20

    申请号:US158982

    申请日:1993-11-30

    CPC分类号: C22C27/06

    摘要: A hard facing chromium-base alloy consisting essentially of 30.0 to 48.0% by weight of nickel. 1.5 to 15.0% by weight of tungsten and/or 1.0 to 6.5% by weight of molybdenum, the balance being more than 40.0% by weight of chromium, and the maximum sum of tungsten and molybdenum being 15.0% by weight. The alloy may also contain one or more of iron, cobalt, carbon, boron, aluminum, silicon, niobium and titanium. When the alloy is used in powder form as a material for hard facing by welding, the alloy may further contain 0.01 to 0.12% by weight of aluminum, yttrium, misch metal, titanium, zirconium and hafnium. 0.01 to 0.1% by weight of oxygen may also be added to the alloy. The alloy has a high degree of toughness wear resistance and corrosion resistance. The alloy can be used as a hard facing material to be applied to various objects, such as automobile engine valves.

    摘要翻译: 基本上由30.0至48.0重量%的镍组成的硬质铬基合金。 1.5至15.0重量%的钨和/或1.0至6.5重量%的钼,余量大于40.0重量%的铬,钨和钼的最大总和为15.0重量%。 合金还可以含有铁,钴,碳,硼,铝,硅,铌和钛中的一种或多种。 当合金以粉末形式用作通过焊接的硬面材料时,该合金还可以含有0.01至0.12重量%的铝,钇,混合金属,钛,锆和铪。 也可以向合金中添加0.01〜0.1重量%的氧。 该合金具有高韧性耐磨性和耐腐蚀性。 该合金可以用作用于各种物体的硬质材料,例如汽车发动机阀门。

    Hard facing chromium-base alloys
    2.
    发明授权
    Hard facing chromium-base alloys 失效
    硬面铬基合金

    公开(公告)号:US5314659A

    公开(公告)日:1994-05-24

    申请号:US883960

    申请日:1992-05-15

    CPC分类号: C22C27/06

    摘要: A hard facing chromium-base alloy consisting essentially of 30.0 to 48.0% by weight of nickel, 1.5 to 15.0% by weight of tungsten and/or 1.0 to 6.5% by weight of molybdenum, the balance being more than 40.0% by weight of chromium, and the maximum sum of tungsten and molybdenum being 15.0% by weight. The alloy may also contain one or more of iron, cobalt, carbon, boron, aluminum, silicon, niobium and titanium. When the alloy is used in powder form as a material for hard facing by welding, the alloy may further contain 0.01 to 0.12% by weight of aluminum, yttrium, misch metal, titanium, zirconium and hafnium. 0.01 to 0.1% by weight of oxygen may also be added to the alloy. The alloy has a high degree of toughness, wear resistance and corrosion resistance. The alloy can be used as a hard facing material to be applied to various objects, such as automobile engine valves.

    摘要翻译: 基本上由30.0至48.0重量%的镍,1.5至15.0重量%的钨和/或1.0至6.5重量%的钼组成的硬质铬基合金,余量大于40.0重量%的铬 ,钨和钼的最大总和为15.0重量%。 合金还可以含有铁,钴,碳,硼,铝,硅,铌和钛中的一种或多种。 当合金以粉末形式用作通过焊接的硬面材料时,该合金还可以含有0.01至0.12重量%的铝,钇,混合金属,钛,锆和铪。 也可以向合金中添加0.01〜0.1重量%的氧。 该合金具有高韧性,耐磨性和耐腐蚀性。 该合金可以用作用于各种物体的硬质材料,例如汽车发动机阀门。

    Inspection apparatus and method for optical system, exposure apparatus
provided with the inspection apparatus, and alignment apparatus and
optical system thereof applicable to the exposure apparatus
    10.
    发明授权
    Inspection apparatus and method for optical system, exposure apparatus provided with the inspection apparatus, and alignment apparatus and optical system thereof applicable to the exposure apparatus 失效
    具有光学系统的检查装置和方法,设置有检查装置的曝光装置,以及适用于曝光装置的对准装置及其光学系统

    公开(公告)号:US5680200A

    公开(公告)日:1997-10-21

    申请号:US651098

    申请日:1996-09-05

    摘要: The present invention relates to inspection apparatus and method in which, based on images under a plurality of focus conditions formed by way of an optical system to be inspected, namely, using images under a plurality of defocal conditions, tendency in positional change or change of asymmetry between the images is calculated so as to specify at least one of aberration condition and optical adjustment condition of the optical system to be inspected as well as to exposure apparatuses and overlay accuracy measurement apparatuses provided with the inspection apparatus. In addition, the present invention relates to an image-forming optical system suitable to an alignment apparatus which is applicable to the exposure apparatuses. This image-forming optical system comprises a correction optical system for intentionally generating asymmetric aberration or symmetric aberration in the image-forming optical system and a decentering mechanism for decentering the correction optical system to cancel asymmetric aberration or symmetric aberration in the image-forming optical system.

    摘要翻译: 本发明涉及一种检查装置和方法,其中基于通过待检查的光学系统形成的多个聚焦条件下的图像,即,使用多个放置条件下的图像,位置变化或变化的趋势 计算图像之间的不对称性,以便指定要检查的光学系统的像差条件和光学调节条件以及设置有检查装置的曝光装置和重叠精度测量装置中的至少一个。 此外,本发明涉及适用于可应用于曝光装置的对准装置的图像形成光学系统。 该图像形成光学系统包括用于在图像形成光学系统中有意产生不对称像差或对称像差的校正光学系统和用于使校正光学系统偏心以消除图像形成光学系统中的非对称像差或对称像差的偏心机构 。