| 摘要 |
A cutting nozzle for a postmixed oxy-fuel gas torch is described. The cutting nozzle is an integral body having a cylindrical shroud which surrounds and extends away from gas discharge orifices in a gas discharge end of the nozzle. The cutting nozzle has the advantage of producing a tighter gas stream and of promoting a more thorough mixing of preheat oxygen and fuel gas. The advantages include reduced machining time and material waste. The coupling of the nozzle to the torch is also facilitated and high quality performance of the cutting nozzle is promoted because alignment of the cutting nozzle in the torch head is ensured. |
