Foreign body removal method and foreign body removal device

摘要

PROBLEM TO BE SOLVED: To provide a method for removing foreign objects in which foreign objects remaining in a hollow part communicating with a hole are defecated and removed from the hollow part to the outside, and to provide a device for removing foreign objects.;SOLUTION: The method for removing foreign objects is provided for defecating and removing burrs 84 remaining in a cavity 83 communicating with a perforated hole 81H at the inner peripheral wall 82 of the hole by discharging the burr from the cavity out to the hole. The method includes: a first step for inserting a rod-like fluid streamline member 10 having a streamline part 11 at the tip end thereof, wherein the diameter of the streamline part corresponds to that of the hole, and supplying air AR into deep inside of the hole; and a second step for changing the flow of air, through the streamline part, towards the cavity at the position where the cavity exists while the fluid streamline member is being moved, and forcing air to flow into the cavity.;COPYRIGHT: (C)2012,JPO&INPIT