MANUFACTURING METHOD OF A WATER-TIGHTENED CORRUGATED STEEL PIPE, CAPABLE OF MAINTAINING AIRTIGHTNESS BY INJECTING A SEALING MATERIAL INTO A LOCK SEAM WHICH IS CONNECTED TO THE CORRUGATED STEEL PIPE, AND A CORRUGATED MANUFACTURED BY USING THE SAME

摘要

PURPOSE: A manufacturing method of a water-tightened corrugated steel and a corrugated manufactured by using the same are provided to manufacture a corrugated pipe with improved airtightness by injecting a sealing material into a lock seam and to use the corrugated pipe for a water tank.;CONSTITUTION: A manufacturing method of a water-tightened corrugated steel comprises the following steps. The bent unit (126) is formed on one side edge of a steel sheet. A lock seam part is formed by interconnecting the bent parts of neighboring steel sheets. The lock seam part is bored to make a hole. A sealing material is injected into the bored hole. The sealing material is injected into a hole. The tightening member is used to tighten the hole. The hole is formed in a space which exists on the front side of the end of the steel sheet, and the sealing material is coated on the border on which the steel shears are met.;COPYRIGHT KIPO 2013