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DL/T438—2009火力发电厂金属技术监督规程解读
引用本文:李益民,范长信,杨百勋,赵彦芬,梁军,严苏星,蔡文河,林介东. DL/T438—2009火力发电厂金属技术监督规程解读[J]. 电力建设, 2012, 33(3): 97-101
作者姓名:李益民  范长信  杨百勋  赵彦芬  梁军  严苏星  蔡文河  林介东
作者单位:1. 西安热工研究院有限公司,西安市,710032
2. 苏州热工研究院有限公司,苏州市,215000
3. 神华国华(北京)电力研究院有限公司,北京市,101402
4. 陕西电力科学研究院,西安市,710054
5. 华北电力科学研究院有限责任公司,北京市,100045
6. 广东电网公司电力科学研究院,广州市,510080
摘    要:重点介绍了DL/T438—2009中取消合金钢碳化物、蠕变孔洞检测监督、蒸汽管道不强制进行蠕胀检测的技术背景和9%~12%Cr钢制高温部件硬度控制的技术依据,阐述重要技术条款的修订项,以利于规程的解读和执行。

关 键 词:DL/T438—2009  金属监督  碳化物  蠕变孔洞  蠕胀检测  9%~12%Cr钢

Explanation of DL/T 438-2009 Technical Supervision Codes for Metal in Thermal Power Plant
LI Yimin , FAN Changxin , YANG Baixun , ZHAO Yanfen , LIANG Jun , YAN Suxing , CAI Wenhe , LIN Jiedong. Explanation of DL/T 438-2009 Technical Supervision Codes for Metal in Thermal Power Plant[J]. Electric Power Construction, 2012, 33(3): 97-101
Authors:LI Yimin    FAN Changxin    YANG Baixun    ZHAO Yanfen    LIANG Jun    YAN Suxing    CAI Wenhe    LIN Jiedong
Affiliation:1. Xi' An Thermal Power Research Institute Co. ,Ltd. ,Xi' An 710032 ,China; 2. Suzhou Nuclear Power Research Institute, Suzhou 215000, China; 3. Shenhua Guohua Electric Power Research Institute, Beijing 101402, China; 4. Shaanxi Electric Power Science & Research Institute, Xi' an 710054, China; 5. North China Electric Power Science & Research Institute ,Beijing 100045, China; 6. Guangdong Electric Power Science & Research Institute, Guangzhou 510080, China)
Abstract:For the convenience of understanding and performing the codes, the technical background for canceling carbides and creep voids check of alloy steel, and for unenforced creep strain check of steam pipe at high temperature are emphatically introduced. The technical basis for control the hardness of 9% - 12% Cr steel used in high temperature assemblies is analyzed. Furthermore, the revise of some important technical terms is demonstrated.
Keywords:DL/T 438--2009  supervision for metal  carbide  creep voids  suPervision for creep strain  9% -12% Cr steel
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