Cutting head and cutting nozzle for a liquid/abrasive jet cutting arrangment

摘要

A nozzle for a high pressure cutting arrangement is disclosed. The cutting arrangementcomprises a liquid stream and a slurry stream, the slurry comprising abrasiveparticles suspended in a fluid, with both fluids being supplied into the nozzleunder pressure. The nozzle has a combining chamber, having an entry region arrangedto receive the liquid stream and the slurry stream, such that the pressure in theentry region is determined by the pressure in the liquid stream. The pressurein the entry region acts on the pressure in the slurry stream to regulate the pressurein the slurry stream.