| 摘要 |
<p>An emitting pipe boring method and an emitting pipe with a hole formed by the same are provided to accurately form holes on the outlet portion of a pressure reduction drip regardless of the variation of the gap between the pressure reduction drips. An emitting pipe boring method includes a first step of forming an upward protrusion(24) on an outlet portion(23) of a pressure reduction drip(2) at a height greater than that of the drip; a second step of forming a projected portion on a drip pressure reduction hose by the upward protrusion of the drip when the drip is welded onto an inner surface of the drip pressure reduction hose; and a third step of forming a hole on the drip pressure reduction hose by horizontally cutting a top of the projected portion formed on the drip pressure reduction hose.</p> |
