flame welding meaning in Chinese

火焰焊接
火焰熔接
熔气焊
焰焊

Marine operation code of spray coating and flame welding - on
船用火焰喷焊操作规程
The coating on the chassis is generally guaranteed for two years , at the same time , pay attention to avoid scratch by stone blocks ; moreover , do not flame welding on the chassis so as not to change hardness of steel work
同时应避免轿车底盘被路面石块等硬物划伤，还应尽量避免在底盘上进行火焰焊接，以免改变钢件的硬度，而经过火焰烧过的铁板生锈的可能性更大。