The Problem
Static charge can be used to bond 2 materials together to prevent air entrapment. Applications that benefit from this technique are:
- During bagmaking, parts of the bag are held together to prevent air inclusion during finishing.
- A roll of bags or film will be much tighter without air inclusion.
- Sticking material to a cooling roller without air inclusion optimises the cooling process.
The Solution
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.
Used Products
HDR Charging Bar
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.
CM5-30
CM5 is fully backwards compatible with ECM30/60 and ECM DI30/60.
For basic users a quick set-up menu is provided to set-up the generator to function as an ECM30/60. The Menu is available in English, German, French and Italian.
The new standard function Current Control will enable you to set a constant current vs a constant voltage. This will provide a much more stable charging and will compensate contamination and emitter pin wear automatically.
Advanced Current Control is a revolutionary new feature. The generator keeps track of the supplied current to the electrode. It senses when there is no material to be charged and switches the current to a safe low level. This prevents sparkover and emitter pin wear. When material is reinserted the current will switch back to the high level current.
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