发明申请
US20050220260A1 Method of surface-treating reactor member and method of manufacturing reactor member by using the surface treatment method
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基本信息:
- 专利标题： Method of surface-treating reactor member and method of manufacturing reactor member by using the surface treatment method
- 专利标题（中）：表面处理反应器构件的方法和使用表面处理方法制造反应器构件的方法
- 申请号：US11041305 申请日：2005-01-25
- 公开(公告)号：US20050220260A1 公开(公告)日：2005-10-06
- 发明人： Kazuki Monaka , Juntaro Shimizu , Yoichiro Yamaguchi
- 申请人： Kazuki Monaka , Juntaro Shimizu , Yoichiro Yamaguchi
- 申请人地址： JP Tokyo
- 专利权人： MITSUBISHI HEAVY INDUSTRIES, LTD.
- 当前专利权人： MITSUBISHI HEAVY INDUSTRIES, LTD.
- 当前专利权人地址： JP Tokyo
- 优先权： JP2002-000667 20020107
- 主分类号： G21C21/00
- IPC分类号： G21C21/00 ; G21C3/07 ; G21C3/12 ; G21C3/33 ; G21C15/00
摘要：
A method of surface-treating a reactor member for effectively removing a Cr-deficient layer and a work-hardened layer considered to be a cause of stress corrosion cracking (SCC) under low-stress conditions. The method of surface-treating a reactor member which is worked by bending (step 1) and then processed by a heat treatment (step 2), in which a work-hardened layer is formed by the bending, and in which a Cr-deficient layer is formed due to an oxide film attached by the heat treatment, uses at least one of: acid wash; grinding; electrolytic polishing; electro-discharge machining; surface cutting; surface deoxidation and softening; wet blasting; laser machining; or surface plating (step 3) to remove the work-hardened layer and the Cr-deficient layer from the reactor member or to prevent contact of the work-hardened layer and the Cr-deficient layer of the reactor member with a primary coolant.
摘要（中）：
在低应力条件下，有效地除去被认为是应力腐蚀开裂原因（SCC）的Cr缺陷层和加固硬化层的反应器构件的表面处理方法。 表面处理通过弯曲（步骤1）进行加工，然后通过热处理（步骤2）进行加工的反应器构件的表面处理方法，其中通过弯曲形成加工硬化层，并且其中Cr缺陷 由于通过热处理而附着的氧化膜形成层，使用以下中的至少一种：酸洗; 研磨 电解抛光; 放电加工; 表面切割; 表面脱氧和软化; 湿喷 激光加工; 或表面电镀（步骤3）以从反应器构件去除加固硬化层和Cr缺陷层，或者防止加固硬化层和反应器构件的Cr缺陷层与初级冷却剂接触。