KOAXIALE DUESE ZUR LASER-OBERFLAECHENBEHANDLUNG MIT ZUFUHR VON PULVERFOERMIGEM MATERIAL.

摘要

PCT No. PCT/FR93/00009 Sec. 371 Date Nov. 8, 1993 Sec. 102(e) Date Nov. 8, 1993 PCT Filed Jan. 7, 1993 PCT Pub. No. WO93/13871 PCT Pub. Date Jul. 22, 1993.A surface treatment nozzle for laser irradiation, with the supply of material in powder form is characterized in that it is essentially constituted, on the one hand, by a nozzle body (1) provided with a truncated conical passage (2) that converges in the direction of the outlet of the nozzle (3) along the propagation axis (6') of the laser beam (6) and, on the other hand, by a coaxial injection device (4) for guidance of the materials (5) in powder form carried by a transport fluid within the nozzle body (1) so as to improve the interaction between the incident laser beam (6) and the materials (5) in powder form.