Enclosed Arc Welding Processes for Rail
Katsuyoshi UEYAMA
An enclosed arc welding was developed in 1963 and has been used as a rail welding
method in the field with high reliability. As often pointed out, this method has
problems such as a long working time required, weld rail end batter, weld crack,
etc. As a result of some investigations mainly on the improvement in quality of
welds and the reduction of working time, some welding processes are used in this
method. Seven welding processes are applied for standard rail and three processes
for head hardened rail, including trial processes. Here are outlined the features
of each enclosed arc welding process and the present situation of its use.