Cutting nozzle assembly for a postmixed oxy-fuel gas torch

Details Cutting nozzle assembly for a postmixed oxy-fuel gas torch Cutting nozzle assembly for a postmixed oxy-fuel gas torch

1992-11-25

1997-12-23

Ip, Sikyin

Metallurgical apparatus

Means for cutting solid metal with heat, e.g., blowpipes

266 76, 266 77, 266902, 266903, 266904, 239288, 2392883, 2392885, B23K 700

Patent

active

057004218

ABSTRACT:
A novel cutting nozzle assembly for a postmixed oxygen-fuel gas torch is disclosed. The nozzle assembly includes a cylindrical shroud which surrounds and extends away from the gas discharge orifices in the gas discharge end of the cutting nozzle. The cylindrical shroud has the advantage of producing a tighter gas stream and of promoting a more thorough mixing of the preheat oxygen and the fuel gas to provide a hotter, more compact flame which produces a more parallel-sided cut through metal workpieces. The cutting tip therefore conserves metal as well as cutting gases. It also cuts faster than prior art postmixed cutting nozzles.

REFERENCES:
patent: 3590212 (1971-06-01), Corrigall et al.
patent: 3923448 (1975-12-01), Guth
patent: 4443003 (1984-04-01), Bleys
patent: 4455176 (1984-06-01), Fuhrhop
patent: 5120026 (1992-06-01), Bissonnette

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