Apparatus for sand-blasting of surfaces which, from a straight sand jet system are not accessible

摘要

The device enables the shot blasting of the internal cavities that are inaccessible by a direct pipe. (br / & it mainly comprises a shot-blasting pipe (9) is oriented in the forward direction of the shot blasting to the inside of the cavities to be peened (11). This pipe (9) receives directly the shot and the compressed air under high pressure (8) inside the rotor (10). The whole is introduced by means of a column (6) mounted on a shot-blasting machine (1) on the horizontal rotary plate (2) of which the part (10) is fixed. & br / application to the shot blasting of the internal surfaces of a turbojet rotor.