摘要
通过对P92钢中频弯管工艺和弯后热处理工艺的试验和研究，确立了可满足材料使用性能和质量要求的中频弯管技术。试验证明，P92钢管有着较宽的感应弯管温度范围，推荐弯制温度为900℃～940℃，弯后须进行正火加回火处理，以保证其机械性能完全符合标准的要求。该技术已应用于外高桥电厂三期2×1000MW机组工程。
Through testing and studying of process of P92 steel medium - frequency tube - bending and heat treatment, the rational craftwork, which can meet the material serviceability and the required quality, has be put forward. The experiment proves the steel tube of P92 is possess of wider range of tube - bending temperature, it is recommended that the temperature should be in 900℃ - 940℃, and then treated with normalizing and tempering technology in order to guarantee its mechanical performance accordant with the standard demand totally. The technology described above has been applied successfully in the 2 ×1 000 MW units of the third stage project of Waigaoqiao Power Plant.
出处
《华电技术》
CAS
2008年第4期41-45,50,共6页
HUADIAN TECHNOLOGY
关键词
P92钢
热处理
中频弯管
热压成型
P92 steel
heat treatment
medium - frequency tube - bending
hot pressing formation
