TABLE OF CONTENTS Altuglass International: Plexiglas
Plexiglas acrylic resins may be welded to other thermoplastics (Table 20.1).
| Plexiglas V-Series | Plexiglas MI-7 | Plexiglas DR | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Ultrasonic | Vibration | Hot Plate | Ultrasonic | Vibration | Hot Plate | Ultrasonic | Vibration | Hot Plate | |
| PMMA | G | E | E | G | E | E | G | E | E |
| ABS | G | E | E | G | E | E | G | E | E |
| ABS/PC | G | VG | VG | G | VG | VG | G | VG | VG |
| PC | G | VG | VG | G | VG | VG | G | VG | VG |
| E: excellent (weld strength 90 100% of tensile strength of weaker material); VG: very good (weld strength 70 90% of tensile strength of weaker material); G: good (weld strength 50 70% of tensile strength of weaker material). |
Reference: Plexiglas Technical Data. Welding Methods, Supplier technical data sheet, Altuglass International, 2006.
Altuglass International: Plexiglas
The following hot plate welding parameters may be used as a reference point when welding Plexiglas resins:
Temperature: 600 800 F (315 425 C)
Melt-depth: 0.03 0.04 inches (0.76 1.00 mm)
Seal depth: 0.01 0.02 inches (0.25 0.51 mm)
Reference: Plexiglas Technical Data. Welding Methods, Supplier technical data sheet, Altuglass International, 2006.
Acrylic [form: 3 mm (0.118 inch) thick sheet]
With increasing melt layer thickness, hence an increasing hot plate temperature and/or heating time, there was an increase in the component's susceptibility to stress cracking. As far as process control is concerned, this means the lowest possible heating time and hot plate temperature should be selected. This is not, however, in the interests of the cost efficiency...
