| 摘要 |
<p>A nozzle body is disclosed. The nozzle body includes a nozzle head which begins at a front end face of the nozzle body, a shaft which is connected to the nozzle head and ends at a rear end face of the nozzle body, and a ceramic insert. A longitudinal channel runs through the nozzle body and opens into the front and rear end faces of the nozzle body. An annular surface facing the rear end face of the nozzle body is formed in the longitudinal channel of the nozzle body. The ceramic insert has a longitudinal channel that is concentric with the longitudinal channel of the nozzle body, the ceramic insert is disposed in the longitudinal channel of the nozzle body, and the ceramic insert is in contact with the annular surface. A rear end of the shaft protrudes beyond the ceramic insert and forms an edge.</p> |
