During the laser cutting process, the laser head nozzle collects capacitive signals and transmits them to the signal processor through a ceramic ring, thereby maintaining the distance tracking of the laser head to the workpiece during the cutting process of the laser pipe cutting machine, guiding the gas to smoothly pass through the workpiece to be cut,

High pressure is formed near the nozzle outlet to accelerate cutting speed, remove molten slag, and protect the inner lens of the laser head.

Type of nozzle

Generally, laser cutting nozzles are divided into single and double layers. Single layer nozzles are used for melting and cutting, that is, nitrogen is used as an auxiliary gas, and are commonly used for cutting stainless steel, aluminum alloy, brass, etc; Double layer nozzles are commonly used for oxidative cutting, which uses oxygen as an auxiliary gas and are typically used for cutting carbon steel.

Selection of nozzle size

The size of the nozzle diameter determines the shape of the gas flow entering the incision, the gas diffusion area, and the gas flow rate, thereby affecting the removal of molten material and cutting stability.

The greater the air flow into the incision, the faster the speed, and the appropriate position of the workpiece in the air flow, the stronger the ability of spraying to remove molten material. The user selects the nozzle size based on the laser power used and the thickness of the metal plate cut.

In theory, the thicker the plate, the larger the nozzle should be used. The larger the setting pressure of the proportional valve, the greater the flow rate. Only by ensuring the pressure can the normal cross-section effect be cut.

Three different power nozzle options

Laser power ≤ 6000w

Cutting carbon steel, nozzle specification and diameter are generally double layer S1.0-5.0E

Cutting stainless steel, using ordinary specification WPCT single layer nozzle

Laser power ≥ 6000w

Cutting carbon steel, 10-25mm carbon steel bright surface cutting, selecting a cutting nozzle with a specification and diameter of generally double-layer high-speed E-type S1.2-1.8E; The diameter of single layer fan is generally D1.2-1.8

Cutting stainless steel, using ordinary specification WPCT single layer nozzle