| 摘要 |
PROBLEM TO BE SOLVED: To provide a nozzle and a blasting apparatus capable of performing any of dry and wet blasting by jetting a jetting material being a blasting medium or slurry in which abrasive grains are dispersed in liquid, together with high-pressure gas, as a mixed gas stream.SOLUTION: A nozzle includes a nozzle holder, a gas nozzle, and a jetting nozzle. The gas nozzle has a hollow shape in which a flow path of a high-pressure gas is formed from a high-pressure gas introducing part toward a high-pressure gas jetting port, and includes, toward the high-pressure gas jetting port, a cylindrical straight body part, a gas nozzle compression part having a diameter continuously reduced toward a diameter-reduced end, and a gas nozzle acceleration part having a diameter continuously expanded from the diameter-reduced end. The gas nozzle is movably inserted into the nozzle holder. |
