Method and device for grinding sealing surface of valve for nuclear power station

The invention belongs to the technical field of machinery, particularly relates to a method and device for grinding a sealing surface of a valve for a nuclear power station, and is suitable for grinding a sealing surface of a valve with high sealing performance requirement. Grinding is divided into four stages of rough grinding, fine grinding, precise grinding and polishing, and a specific operation method is adopted in each stage; and quality evaluation standards of the four stages of rough grinding, fine grinding, precise grinding and polishing are stipulated, the grinding efficiency is improved by more than one time compared with common manual grinding, and good benefits are created. 本发明属于机械技术领域，具体涉及一种核电站用阀门密封面研磨方法及装置，适用于密封性能要求很高的阀门的密封面研磨。本发明将研磨分为粗研磨、细研磨、精研磨、抛光四个阶段，每一阶段有具体操作方法；规定粗研磨、细研磨、精研磨、抛光四个阶段的质量评判标准，研磨效率较一般的手工研磨提高一倍以上，创造了良好的效益。