Abrasive water jet nozzle
Abrasive nozzle: carbide or sapphire orifice that accelerates and focuses the water-abrasive mixture. Enhances cutting performance.
Physical-Chemical Mechanism of Action
The abrasive nozzle accelerates the water-abrasive mixture by passing it through a narrow channel. This increases the speed and pressure of the jet, leading to a stronger erosive effect.
Metallurgical Relevance & Risks in Welding
A faulty abrasive nozzle can lead to uneven cutting and wear. A too-narrow channel can block the jet, while a too-wide channel reduces effectiveness. This can lead to cracks or damage to the workpiece.
Workshop Practice & Instructions
Use an abrasive nozzle made of carbide or sapphire with a suitable channel diameter (typically 0.5 to 1 mm). Ensure the jet passes through unobstructed and there are no blocks or contaminants. Regularly check the nozzle for damage and replace it at the first sign of wear.