The first point is that the size of the nozzle is selected according to the thickness of the metal sheet cut by the user. The aperture of the nozzle controls the flow rate of the gas and the shape of the gas field, which is very important to the cutting quality. Generally, when using a laser cutting machine to cut a thin plate below three meters, it is recommended to use a nozzle with a hard diameter, and for a thickness above three meters, it is recommended to choose a nozzle with a diameter of 1.5. The metal plate material for cutting more than ten people generally chooses a diameter of two or more. above the nozzle.
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