| 摘要 |
PURPOSE: A gas cutting machine is provided to reduce preheating time by jetting a large amount of mixed gas in a short time. CONSTITUTION: A gas cutting machine comprises a torch head(110), a nozzle(150), a torch tip(170), a gas regulating unit(600), a low-pressure oxygen regulating unit(200), and a high-pressure oxygen regulating unit(400). The torch tip discharges mixed gas to the outside through the jetting groove of the nozzle. The gas regulating unit comprises a gas regulating pin which controls the supply amount of gas. The low-pressure oxygen regulating unit guides a part of oxygen supplied to an oxygen supply pipe to the torch head through a low-pressure oxygen pipe. The high-pressure oxygen regulating unit guides a part of oxygen supplied to the oxygen supply pipe to the torch head through a high-pressure oxygen pipe.
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