| 摘要 |
PROBLEM TO BE SOLVED: To provide a mortar spraying nozzle, uniformly spraying mortar, avoiding drooping of mortar, and smoothly jetting mortar. SOLUTION: Compressed air is introduced into a nozzle 10 at a fixed angle of inclination to the longitudinal axis (X-X) of the nozzle. A nozzle body 16 is connected to the forward end of a mortar supply pipeline 12 through a joint 14, and the nozzle body is shaped to be gradually reduced in the inside diameter from the base end as a mortar inflow port to the tip as a mortar discharge port. COPYRIGHT: (C)2004,JPO&NCIPI
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