Device for processing inner surface of tube

摘要

Problem to be solved: to provide an inner surface treatment apparatus of a tube capable of reducing pinhole failure.The inner surface treatment device of the tube of the present invention isTo polish the inner surface of the cast tubeAn inner surface polishing device having a grinding wheel rotating around an axis substantially parallel to the axis of the tubeTo wipe the inner surface of the tube after grinding with the wheelProvided with a cleaning device with a cleaning brush rotating around an axis approximately parallel to the axis of the tubeInternal processing unitCleaning brushThis embodiment is characterized in that the rotating direction of the grinding wheel is rotated in the opposite direction.Diagram