| 摘要 |
<p>PROVIDED IS AN AIR INJECTION NOZZLE (1), WHICH IS USED FOR A HEAT TREATMENT SUCH AS THE HEATING, COOLING OR THERMAL INSULATION OF A RUNNING SHEET (OR FILM) (31) WITH INJECTED AIR. IN THE AIR INJECTION FACE (40), A NUMBER OF AIR INJECTION HOLES (2) ARE SO ARRAYED AT AN INTERVAL (PY) IN FIRST AND SECOND ROWS (2A, 2B) THAT THE AIR INJECTION HOLES (2) OF A FIRST ROW (2A) AND THE AIR INJECTION HOLES (2) OF A SECOND ROW (2B) ARE STAGGERED. THE FIRST ROW (2A) AND THE SECOND ROW (2B) ARE POSITIONED AT AN INTERVAL (PX). THE AIR INJECTION FACE (40) AND THE SHEET RUNNING FACE CONFRONT EACH OTHER AT A DISTANCE (L). THE AIR INJECTION HOLES (2) IN THE AIR INJECTION FACE (40) HAVE A DIAMETER (D). THE INTERVAL (PX), THE INTERVAL (PY), THE DISTANCE (L) AND THE DIAMETER (D) SATISFY FORMULA (1): 6 ? (L/D)/(PX/PY) ? 9, AND FORMULA (2): 4 ? L/D ? 8. THIS AIR INJECTION NOZZLE (1) IS EMPLOYED AS A RESIN FILM HEAT TREATING APPARATUS IN A TENTER OVEN (51) TO BE USED FOR MANUFACTURING THE RESIN FILM. FIG 1</p> |
