Surface treatment of rotors

Details Surface treatment of rotors Surface treatment of rotors

C - Chemistry, Metallurgy

23

C

C23C 4/14 (2006.01) C23C 4/12 (2006.01)

Patent

CA 2320705

A treatment jet or beam (19), e.g. from a high velocity oxygen-liquid fuel (HVOF) spray gun (17), has an axis (18) intersecting the surface of a rotor (4) at a given point (21). The rotor (4) has a profile which progresses helically along it. The point (21) is traversed along the rotor (4) while keeping the point (21) at the same position on the rotor profile. In particular the jet axis (19) is moved parallel to the rotor axis (22) while the rotor (4) is rotated in synchronism.

La présente invention concerne un jet ou un faisceau (19) produit par exemple par un pistolet grande vitesse à oxygène liquide (17) dont l'axe (18) coupe la surface d'un rotor (4) en un point (21) donné. Le rotor (4) présente un profil à développement hélicoïdal. Le point (21), qui est frappé transversalement par le jet sur le rotor (4), reste au même emplacement sur le profil dudit rotor. Plus particulièrement, l'axe du jet (19) progresse parallèlement à l'axe (22) du rotor à une vitesse synchronisée avec la vitesse de rotation du rotor.

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