METHOD AND DEVICE FOR TREATING SURFACES

摘要

Method and device for treating surfaces (4) by means of bombardment with particles, characterized by A) directing two jets (13,13a) of particles with a velocity of 80 - 200 m/s to said surface (4) to be treated; by B) generating said two jets (13,13a) by means of two particle blasting devices (12,12a) in such manner that: i) said two jets (13,13a) converge in the direction of flow of said particles; ii) the areas of impingement (18,18a) of said two jets (13,13a) on the surface (4) to be treated overlap each other; and C) moving said two particle blasting devices (12,12a) parallel to said surface (4) to be treated at a velocity of 2 to 12 m/minute relative to said surface (4).