Reifenhauser Inc. has developed an automatic die-gauge control for making film.
The Reicotherm is a die for monolayer or coextrusion, containing cartridge heaters and integrated thermocouples closely spaced around the die gap. The control is based on temperature adjustments at the corresponding heating zone, increasing the temperature at thick spots and reducing it at thin spots.
Film thickness is measured by a capacitive thickness gauge that oscillates on a track around the film bubble. The gauge head is specially designed to work with sticky or scratch-sensitive films.
A control panel displays linear and circular cross-sections of the film. Reifenhauser is based in Ipswich, Mass.
Tel. (978) 412-9700, fax (978) 412-9715.