Pfaff 8304-040, Инструкция по эксплуатации, Страница: 28 / 52

Heat sealing
10 - 1
10 Heat sealing
The machine must only be operated by appropriately trained personnel! The
operating staff must also make sure that only authorized persons are in the
danger area of the machine!
10
.01
Heat-sealing principle
In order to achieve optimum heat-sealing, certain conditions concerning the workpiece and
the machine settings have to be fulfilled.
The heat-sealing tape must be:
●
heat-sealable
●
be suitable for use on the machine with regard to thickness and properties
The material to be heat-sealed must be clean in the seam area.
The basic requirements on the heat-sealing machine are:
●
the correct working temperature of the hot-air nozzle (hot-air temperature)
●
the correct setting of the hot-air pressure
●
correct selection of the feed rollers
- top roller silicone (standard)
- bottom roller steel (standard)
●
optimum pressure of the feed rollers on the workpiece
●
correct distance between the feed rollers and
●
correct sealing speed.
All settings of this heat-sealing machine always depend on the type of material
being heat-sealed.
Errors which may occur during heat-sealing:
●
Hot-air temperature too high: heat-sealing tape and workpiece (membranes) can
burn.
●
Hot-air temperature too low: complete heat-sealing of the seam not possible.
Melting temperature for the heat-sealing tape is not
achieved.
●
Seam is uneven: Seam is not adequately sealed (Pay attention to the
symmetrical and parallel alignment of the feed
rollers, hot-air nozzle and sealing tape).
From
the
library
of:
Diamond
Needle
Corp