Deutsch English Español Français

Navigation

News

Products
 Corona
   Generators
   Stations
   Laboratory unit
   Sheet station
 Plasma
   Arcojet
   Arcospot
 Flame

   FTM
   Control units
   Burners
   Silica coating
 Service
   Laboratory
   
Service contact
 Testing ink
   Order form
 Custom units
   Robots
   Conveyor belt
   Enclosure
   Other

FAQ

References

Company history

Contact

Dates

Downloads

Legal

 

Flame

Exhibitions

 
Summary  

The principle of flame treatment is quite simple. A flame is placed above the component to be treated. The flame, which has a temperature of up to 1800 °C, contains during combustion unconsumed oxygen (lean flame), oxygen diffused into the hot flame from the atmosphere and the combustion products (e.g., CO2, H2O) in partially activated form.
These very reactive radicals (e.g., O, OH) are able to crack the long-chained plastic molecules on the surface and attach themselves to the fractured regions. This creates polarised components in the molecules. The surface tension and the wettability are increased.
Due to the cracking of the long-chained plastic molecules the printing ink can also anchor itself better to the surface. The roughening of the surface as well as a certain cleaning effect are also processes that take place on the surface. Since the roughening is on a microscopic scale it is not visible; it causes an enlargement of the surface area and thus provides for better mechanical anchoring conditions.

Standard flame treatment equipment consists generally of a control unit and one or more burners. The performance characteristics of the control unit as well as the number and configuration of the burners has to be specified with respect to the application.
The
manual flame treatment unit (FTM) is often used for testing purposes (laboratory) as well as for short-run productions, as a stand-by unit or for repair work.

By adding gases or precursors it is possible to activate the surfaces more specifically. By adding a silane compound (arcosil® process) it is possible to generate very thin silicate layers (only a few nanometres thick) that have very good adhesive properties. This reduces in particular subsurface moisture ingress, providing possible corrosion protection.

 
ICE Europe
Munich
March 21 - 23
 

BondExpo
Stuttgart
October 09 - 12
 

Fakuma
Friedrichshafen
October 17 - 21
 

InPrint
Munich

November 14 - 16
 

© Arcotec GmbH | Arcotec GmbH | Rotweg 24 | D-71297 Mönsheim | Tel.: +49(0)704492120 | Fax +49(0)7044921212
Errors and omissions excepted. Products are similar to illustrations.