Engine control devices, anti-lock braking systems and on-board electronics are installed in the engine compartment and therefore constantly exposed to high temperature fluctuations and moisture. To protect the sensitive electronics, the printed circuit boards are encased in water- and dustproof housings. The sealing surfaces of these housings must be absolutely clean and free of grease and oil to ensure an impermeable seal.

Plasma treatment secures the sealing of engine control housings
Plasma treatment of aluminium housing

Openair® Plasma enables automated and highly efficient cleaning and pretreatment of these surfaces prior to application of the sealing compounds and helps to achieve a high level of process reliability (plasma activation).

Plasmatreat has been approved as a plasma technology supplier by nearly all major manufacturers of engine electronics. Mature technology and worldwide service ensure trouble-free production processes.

Treatment of complex electronic housing geometries with the low-pressure plasma process

For electronic housings, particularly those with complex geometries, automating the selective scanning of the sealing surfaces can be challenging. In such cases, coating the housing using Aurora low-pressure plasma is a useful solution. Inside the low-pressure plasma chamber, a variety of parts can be cleaned and coated in one short cycle.

This plasma deposited coating provides durable corrosion protection and prevents moisture infiltration, (especially for housings made of aluminum and magnesium alloys). No additional chemical treatment or painting is normally required.

 

Novotechnik

Openair® Plasma – prerequisite for reliable distance and angle sensors

To increase production of its sensors for the automobile industry and machine building, Novotechnik changed its surface treatment technology. Instead of low pressure plasma and vacuum chambers, a shift was made to inline Openair® plasma, which tripled throughput.

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ZF TRW Automotive

Chrome-free protection

Global player ZF TRW Automotive gave up the use of wet chemicals for pretreating an aluminum motor pump assembly and decided on an anti-corrosion coating with PlasmaPlus® instead.

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