| 摘要 |
A short nozzle tip for a torch for thermochemical cutting or flame machining has a central cutting oxygen feed bore comprising an intake portion, a reduced-section portion and a conically flaring discharge portion. Associated with the central oxygen feed bore are fuel gas bores which extend parallel to the central bore and which are disposed in an annular array therearound, while arranged outside the array of fuel gas bores is a further array heating oxygen bores which extend at an inclined angle to the discharge end of the fuel gas bores and issue directly therebeside.
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