电站锅炉受热面部件中9%～12%Cr钢管硬度统计过程控制  

Statistical Process Control for Hardness of 9%～12% Cr Tubes in Heating Component of Utility Boiler

作　　者：刘建文[1] 谢利成[1] LIU Jian-wen;XIE Li-cheng

机构地区：[1]哈尔滨锅炉厂有限责任公司

出　　处：《电站系统工程》2018年第6期31-32,34,共3页Power System Engineering

摘　　要：根据新版DL/T 438-2016《火力发电厂金属技术监督规程》的相关规定,对T91/P91、T92/P92、T122/P122等9%～12%Cr钢母材及焊缝硬度(出厂硬度)指标进行调整,为保证产品硬度满足要求,采取统计过程控制(SPC),通过相应的工艺措施进行改善,使出厂硬度满足要求。According to regulations of DL/T 438-2016Regulations for Supervision of Metal Technology in Thermal Power Plant,indicators of 9%-12%Cr steel metals,such as T91/P91,T92/P92and T122/P122,and weld hardness (delivery hardness)are adjusted to guarantee that product hardness can satisfy requirement.Statistical process control (SPC)are used,and relevant process measures are improved,then delivery hardness can satisfy requirement.

关 键 词：电站锅炉 9%-12%Cr钢 硬度 控制 

分 类 号：TK225[动力工程及工程热物理—动力机械及工程]