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    • 77. 发明授权
    • Method of manufacturing a laminar ring
    • 制造层状环的方法
    • US08815020B2
    • 2014-08-26
    • US13518997
    • 2009-12-25
    • Koji NishidaYuji Suzuki
    • Koji NishidaYuji Suzuki
    • C23C8/24
    • C23C8/24B21D35/007B21D53/14B21D53/16C21D1/06C21D9/00C21D9/40C23C8/02C23C8/04C23C8/26C23C8/80F16G5/16
    • A method of manufacturing a laminar ring, which permits an improvement of efficiency of a nitriding treatment of a plurality of metallic band members which constitute the laminar ring is provided. The method includes a nitriding treatment step of subjecting first through ninth metallic band members to a nitriding treatment wherein the metallic band members are kept in an atmosphere including a nitriding gas by a predetermined concentration, for a predetermined length of time, while gaps are formed between circumferential portions of adjacent ones of the metallic band members laminated on each other such that a position of the gaps is moved relative to the metallic band members in a circumferential direction of the metallic band members, to permit nitrogen to diffuse into surface portions of the metallic band members, so that the nitriding gas can be sufficiently supplied between the adjacent ones of the metallic band members over their entire circumference, to permit the metallic band members to be sufficiently nitrided, even when the nitriding treatment is performed while the metallic band members are laminated on each other, whereby the metallic band members can be sufficiently nitrided, making it possible to increase the number of the metallic band members that can be nitrided at one time, and improve efficiency of the nitriding treatment of the metallic band members.
    • 提供一种制造层状体的方法,其允许提高构成层状环的多个金属带构件的氮化处理的效率。 该方法包括氮化处理步骤,使第一至第九金属带件经受氮化处理,其中金属带部件保持在包含氮化气体的气氛中预定浓度,预定的时间长度,同时在 相邻的金属带构件的圆周部分彼此层叠,使得间隙的位置相对于金属带构件在金属带构件的圆周方向上移动,以允许氮扩散到金属的表面部分 使得氮化气体可以在其整个圆周上相邻的金属带部件之间充分供应,以使得金属带部件被充分氮化,即使当金属带部件是氮化处理时, 彼此层压,由此金属带构件可以是足够的 可以增加可以一次氮化的金属带部件的数量,提高金属带部件的氮化处理效率。