“Static charge can be used to bond 2 materials together to prevent air entrapment”
Static charge can be used to bond 2 materials together to prevent air entrapment. Applications that benefit from this technique are:
The materials that need to be bonded have to pass a charging electrode. Opposite to the charging electrode a ground reference is positioned, e.g. an idle roller. A static charge can be applied ranging from 3 kV to 120 kV depending on the material thickness, speed and adhesion force required.
The HDR charging bar suits high velocity applications. Each individual point being fitted with a resistor, so the chance of spark-over is strongly reduced.