| 摘要 |
A nozzle (55b) is disposed on a bottom (55a) of an air duct (55), and a drying air (56) is fed out from a nozzle (55b) toward a casting film (69). A data of a wind speed of the drying air (56) is input on a key board (100) to a controller (58), in which a height H of the air duct (55) from a casting belt (46) is calculated from the input wind velocity V. On the basis of the calculated height H, the controller (58) drives a shift device (102) to shift the air duct (55) up- and downwardly, such that the height H may be in the range of 20 mm to 300 mm.
|
