-
公开(公告)号：US4820473A
公开(公告)日：1989-04-11
申请号：US795466
申请日：1985-11-06
申请人： Kenya Ohashi , Takashi Honda , Yasumasa Furutani , Eizi Kashimura , Akira Minato , Katsumi Ohsumi
发明人： Kenya Ohashi , Takashi Honda , Yasumasa Furutani , Eizi Kashimura , Akira Minato , Katsumi Ohsumi
CPC分类号： G21C17/0225 , C23C8/10 , C23C8/16 , C23C8/18 , G21F9/004 , Y10S376/90
摘要： The present invention is concerned with a method of reducing radioactivity in a nuclear plant by preliminarily forming oxide films on the surfaces of metallic structural members to be in contact with high-temperature and high-pressure reactor water containing radioactive substances before said metallic members are exposed to said reactor water. The method is characterized by the steps of subjecting said structural members to a first-step oxidation treatment of heating said structural members in an environment of a high temperature, and further subjecting the thus treated structural members to a second step oxidation treatment of heating said treated structural members in an environment having a higher oxidizing capacity than that of said environment in said first-step oxidation treatment to form a denser oxide film than an oxide film obtained in said first step oxidation treatment. According to the present invention, radioactivity in the nuclear plant can be reduced remarkably.
摘要翻译： 本发明涉及通过在金属构件暴露之前预先形成金属结构构件的表面上的氧化物膜以与含有放射性物质的高温高压反应器水接触的方法来降低核电厂中的放射性的方法 到所述反应器水。 该方法的特征在于：在高温环境中对所述结构部件进行第一步氧化处理以加热所述结构部件，并进一步对经过处理的结构部件进行第二阶段氧化处理，加热所述处理过的 在所述第一步氧化处理中，氧化能力高于所述环境的环境中的结构体，以形成比在所述第一步骤氧化处理中获得的氧化膜更致密的氧化膜。 根据本发明，可以显着降低核电厂的放射性。
-
2.发明授权
公开(公告)号：US4564499A
公开(公告)日：1986-01-14
申请号：US666033
申请日：1984-10-29
CPC分类号： C23F15/00
摘要： A method of inhibiting corrosion of carbon steel piping of condensate and feed water systems in a power generating plant, characterized by continuing the water in said piping to flow after also said plant has been shut down until it is restarted up and by keeping the specific electric conductivity of flowing water at 0.5 .mu.S/cm or less.
摘要翻译： 一种抑制发电厂冷凝水和给水系统碳钢管道腐蚀的方法，其特征在于，所述管道中的水在所述设备已被关闭之后继续流动，直到其重新启动并且通过保持特定的电 流动水的电导率为0.5μS/ cm以下。
-
公开(公告)号：US5472579A
公开(公告)日：1995-12-05
申请号：US289267
申请日：1994-08-11
摘要： This invention provides a method and an apparatus for removing scales from hot-rolled steel strips to produce steel strips with excellent surface conditions. In a pickling facility to pickle the hot-rolled steel strip, the pickling method of this invention passes an electric current through the continuously fed, hot-rolled steel strip in one or more of a plurality of pickling tanks. A means to supply an electric current is also provided.
摘要翻译： 本发明提供一种用于从热轧钢带去除氧化皮的方法和装置，以产生具有优异表面条件的钢带。 在酸洗设备中，酸洗该热轧钢带，本发明的酸洗方法使电流通过连续供给的多个酸洗槽中的一个或多个的热轧钢带。 还提供了提供电流的装置。
-
-
搜索结果
3 条记录 (耗时 0.022 秒)
