Different techniques like dipping, brushing, dispensing or spraying are in use to apply brazing pastes on components. BrazeTec has developed brazing pastes especially adjusted for these application techniques. A brazing paste consists of finely dispersed brazing alloy powder and a binder system, which has to be fine tuned to the respective application technique to ensure a homogeneous brazing paste / alloy layer.

New production requirements as selective coating, reproducibility and speed, have generated new application methods.

For components with complex geometry’s, screen printing technology offers a selective coating with a precise contour of brazing alloy. BrazeTec developed brazing pastes, which can be placed by the screen with on metallic substrates in a thickness of 30 to 600µm.

Metal substrate catalytic converters consist of a rolled composite of metal foil and laminate foil. This sandwich is encased in a tube or shell. By using a new method, it is now possible to select the areas to be brazed freely along the entire length of the catalytic converter. This flexibility of design enables the catalytic converter manufacturer to optimise the performance and durability. The new application method is based on the fin-tip roller-coating technology used by the CuproBraze process for copper-brass radiators. A new paste system was developed to meet the requirements of the application.