如何从锅炉的易熔塞形状选择上加强其安全作用,伴随着蒸汽机车的开始投入使用就已成为被人们注意的问题。在我国的蒸汽机车史上曾经先后采用过多种形状的易熔塞,目前使用中的落堵式易熔塞是从六三年开始推广的,是从原友好型机车上移植而来的。从使用到现在已是15年时间,通过长时间的实践证明此种易熔塞有一定的优点,如大量地节约了有色金 How to enhance the safety function of the fusible plug shape of the boiler has become a problem that people pay attention to with the start of the operation of the steam locomotive. In the history of steam locomotive in our country, there are many types of fusible plugs which have been used in the past. The plug plugs currently in use have been popularized since the 1960s and are transplanted from the former friendly locomotives. From the use to now is 15 years, through a long period of practice proved that the fusible plugs have some advantages, such as a substantial savings of non-ferrous