在大型电站锅炉中，由于各国集箱设计不同，所以生产工艺也各不相同。当集箱设计的结构较为复杂时，使用射线检测方法(RT)也会受到一定限制，所以需要利用超声波(UT)和磁粉(MT)两种方法对集箱的质量进行控制。经过理论计算及在实际检测中的观察可得用以上两种方式都可达到较好检测结果。该结论在实际检测过程中也由挖缺得以验证。

In boilers, as the design of the header in each county is different, so the production technology is different. When the designed structure is relatively complicated, the use of RT is also limited, therefore, we need to utilize UT and MT to control the mass of the header. Via the theoretical count in this article and observation in actual detection, it can be found using the above-mentioned methods can achieve better detection results. In actual detection process, it is aslo inspected and verified via finding out defects.