| 摘要 |
<p>The invention presents a pipe welding area purging device and pipe welling method using the same. The purging device and pipe welding method shown in the example 1 of the invention includes: a pipe with purging on the pipe welding area, but with a purging blocking unit with a blocking part integrated in rotation form on the inside of the pipe, which moves the inner space of pipe or blocks the pipe; and a moving wire unit integrated to the purging blocking unit to move the purging blocking unit.</p> |
