| 摘要 |
PROBLEM TO BE SOLVED: To provide a mixing module for spray gun of air cleaning and two- liquid collisional mixture type for effectively preventing scattering of mist in the case of spraying a rapid curable spraying material having low viscosity under high pressure. SOLUTION: A diameter of a nozzle 10 for discharging two liquids after collision is formed at two stages, and when a nozzle root 11 has a diameter D1 and a length L1 and a nozzle end 12 has a diameter D2 and a length L2, ratios are set to D1:D2=1:1.2 to 4.0, and L1:L2=1:0.1 to 1.0. It is recommended that a ratio of a diameter S of a liquid inlet 14 to the diameter D1 of the root 11 is set to S:D1=1:1.2 to 4.0, an inner periphery of the nozzle end is formed in a conical surface gradually converging toward the end, and an angleθof an edge 13 of the nozzle end in a section along the central axis of the nozzle is set to 20 to 80 degrees.
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