| 摘要 |
The present application describes a laser nozzle comprising a nozzle body (1) comprising a first axial housing (5) comprising a first outlet orifice (11) located at a front face (1a) of the nozzle body (1), a mobile element (2) arranged in the first axial housing (5) in the nozzle body (1), comprising a front part (2a) forming a skirt and an axial passage (4) having a second outlet orifice (12) that leads out at said front part (2a) forming a skirt, and an elastic element (8) arranged in the first axial housing (5), between the nozzle body (1) and the mobile element (2). According to the invention, the mobile element (2) is able to be moved in translation in the first axial housing (5) in the direction of the first outlet orifice (11) under the effect of a gas pressure exerted on the mobile element (2), and the elastic element (8) exerts an elastic return force on the mobile element (2), tending to oppose the movement in translation in the first axial housing (5) in the direction of the first outlet orifice (11). In addition, the nozzle comprises an external cover (13) forming a sleeve around all or part of the nozzle body (1). The present application also defines a focusing head and an associated laser cutting installation, and also a laser beam cutting process implementing such a nozzle, such a laser focusing head or such an installation. |
