摘要
超临界锅炉水冷壁螺旋管屏的平衡管管孔加工难点和要点,以及解决的工艺措施。
The main points and difficult points in the drilling machining of balance tube for screw panel in the drilling and the method of solving these problems are introduced in this article.
出处
《锅炉制造》
2005年第2期40-41,共2页
Boiler Manufacturing
关键词
平衡管
管孔加工
阶梯钻头
balance tube
the machining of drilling
ladder drilling bit
