Valve apparatus and method of manufacturing the sa

专利名称：Valve apparatus and method of

manufacturing the same

发明人：Tsuji, Daisuke,Shindo, Osamu申请号：EP14171328.9申请日：20140605公开号：EP2811211A2公开日：20141210

专利附图：

摘要：According to one embodiment, there is provided a valve apparatus including acladding portion that is integrally formed on a sliding-contact surface of either a valverod (205) or a valve body (204), which serves as a movable member, wherein the cladding

portion is formed by inducing a pulsed discharge between an electrode, which is formedof a molded body consisting mainly of a metal, and a treatment target portion of eitherthe valve rod (205) or the valve body (204), so as to weld and deposit a material of theelectrode on a surface of the treatment target portion; and a surface layer that isintegrally formed on a sliding-contact surface of either a bushing (201) or a sleeve, whichserves as a stationary member, wherein the surface layer is formed by forming a firstcoating film by surface-hardening heat treatment using a metallic cementation.

申请人：Kabushiki Kaisha Toshiba

地址：1-1, Shibaura 1-chome, Minato-ku, Tokyo 105-8001 JP

国籍：JP

代理机构：Henkel, Breuer & Partner

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