SEAMLESS TUBE MANUFACTURING PERFORATED PLUG AND A METHOD FOR MANUFACTURING A SEAMLESS TUBE USING THE SAME CAPABLE OF PREVENTING THE GENERATION OF DETERIORATION AT THE TIP END PART OF THE PLUG

摘要

PURPOSE: A seamless tube manufacturing perforated plug and a method for manufacturing a seamless tube using the same are provided to improve durability by manufacturing the seamless tube based on a rotary tube perforating technique.;CONSTITUTION: A seamless tube manufacturing perforated plug is composed of a plug body, a tip end(42), a connecting part(44), and a cooling water path(45). The tip end of the plug body is slantly formed and includes a tapered part. The tip end is integrated at the end part of the tapered part. A tip(43) is formed in the form of an arc at end part of the tip end. A heated billet is perforated at the tip end. The connecting part is in connection with a pressurizing rod. The cooling water path supplies coolant by being formed in the connecting part, the tip end, and the plug body.;COPYRIGHT KIPO 2012