| 摘要 |
<p>The nozzle attachment (10) for a fluid-jet cutting apparatus comprises a first body member (12) detachably mounted on a high-pressure nozzle including a first conduit (24) in fluid communication with a mixing reagion and the nozzle opening. An abrasive conduit (42) communicated with the mixing region of the nozzle attachment. A second body member (14) includes a second conduit (50) comprising an insert (52) in fluid communication with one end of the mixing region. The two body members (12, 14) are detachably fixed and screw means are provided allowing a certain relative movement of the two body members such that the insert (52) forming the exit path for the abrasive fluid jet can be easily aligned to avoid damages of the conduit paths of the nozzle attachment. According to an advantageous emodiment, an abrasive-accumulating pocket (76) circumventing the proximal end of the insert (52) is provided so that a protective cushion of abrasive is deposited during the production of the abrasive jet. </p> |
