METHOD FOR ABRASIVE-JET TREATMENT Russian patent published in 1999 - IPC

FIELD: abrasive-jet treatment of parts, mainly parts being bodies of revolution before deposition of gasothermic coating onto them. SUBSTANCE: path of abrasive particles is changed after they are jumped back from treated surface again towards said surface by means of double-phase air flow. Streams of compressed air are fed in such a way that they are inclined by angle equal to 30-45 degrees relative to generatrix of treated part one opposite to another and inclined by angle equal to 75-85 degrees relative to tangent line. Abrasive particles are fed in such a way that they are inclined by angle equal to 60-75 degrees relative to the same tangent line and normally relative to generatrix. EFFECT: enhanced adhesion strength of gasothermic coatings. 1 dwg, 1 tbl, 1 ex