How to choose the nozzle of laser cutting machine with different power?

- Aug 03, 2020-


How to choose the nozzle of laser cutting machine with different power?



In the process of laser cutting, laser nozzle by capacitance signal collection, the ceramic ring will be sent to the signal processor, to maintain the laser cutting machine in the process of cutting the workpiece of laser range tracking, guide is cutting the workpiece through the gas, and form high pressure in nozzle exit attachments, to speed up the cutting speed, take slag, protect the laser inside the lens.


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The nozzle type


Generally, laser cutting nozzles are divided into single and double layers, and single layer nozzles are used for melting and cutting. Nitrogen is used as auxiliary gas, usually used for cutting non-embroidery steel, aluminum alloy, brass, etc.Double-layer nozzles are generally used for oxidizing cutting, that is, using oxygen as an auxiliary gas, usually used for cutting carbon steel.




Nozzle size selection

 

The nozzle diameter determines the shape, diffusion area and velocity of gas entering the incision, which affects the stability of melt removal and cutting.The higher the gas flow rate, the faster the speed, and the proper position of the workpiece in the airflow, the stronger the ability of the injection to remove the melt.The user selects the nozzle size according to the power of the laser used and the thickness of the metal plate cut.Theoretically, the thicker the plate, the larger the nozzle should be used, the greater the pressure set by the proportional valve, the greater the flow rate, to ensure the pressure, to cut out the normal section effect.



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Selection of different power nozzles 

Laser power ≤ 6000W

Cutting carbon steel, nozzle size diameter is generally double s1.0-5.0E;

Cutting stainless steel, using common specification WPCT single-layer nozzle;

 

 

Laser power ≥ 6000W

Cutting carbon steel, 10-25mm carbon steel bright surface cutting, cutting nozzle size diameter is generally double-layer high speed E-type S1.2-1.8e;The single-layer fan diameter is generally d1.2-1.8.

Cutting stainless steel, using common specification WPCT single-layer nozzle;


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