TRW Automotive: Plasma Coating of Engine Pump Housings
TRW Automotive, the world market leader in the development of integrated safety systems for the automotive industry, has employed the PlasmaPlus® technique for applications with highest requirements for resistance against environmental conditions such as corrosion avoidance, thermal resistance and splash water stability since 2007.
The technique developed in collaboration with Plasmatreat and the Fraunhofer IFAM is applied to engine pump units made from aluminium pressure die castings in order to prevent corrosion. These units are integral components of servo steering systems for a multitude of vehicles and subject to high reliability requirements. Subsequent integration into the final assembly process was possible with little effort, with no disruptions to production and has provided TRW Automotive with a pre-treatment feature that can be easily applied upon customer’s request.
The adhesive bonding seams of the aluminium component surfaces are initially cleaned and activated with Openair® plasma. Immediately thereafter, they are selectively coated in-line with PlasmaPlus® at atmospheric pressure conditions. Plasma polymerization provides a maximum degree of protection against ingress of moisture. The mechanical and, above all, the corrosive loads acting on the component during its operating life must not cause a failure of the bonded joints since otherwise the electric engine and its electronic equipment would no longer be protected. With the use of the plasmapolymer coating, a considerably better resistance against environmental conditions has been achieved over non-coated components.
Openair® plasma offers the user the following values:
- Highly efficient anticorrosion coating
- High resistance against environmental conditions
- New quality standards for the components
- Local application of the coating with no effect on critical areas
- Long-term stable adhesion of the adhesive
- Little space required by the plasma installation
- Subsequent integration into the process chain
- Low maintenance effort
- Short cycle times
- Environmentally friendly method
- No need for removing the coatings before the recycling process
Plasmatreat North America Inc.
1480 Sandhill Dr., Unit 8,
Ancaster, ON L9G 4V5
Phone: +1 905 304-5200
Fax: +1 905 304-5260
Contact: Mr. Tim Smith
Plasmatreat USA, Inc
2541 Technology Drive, Suite 407
Elgin, IL 60124
Phone: +1 847-783-0622
Fax: +1 847-783-0991
Contact: Mr. Jeff Leighty
Plasmatreat USA, Inc
4th State, Inc.
1260 Elmer Street
Belmont, CA 94002
Phone: +1 650 596 1606
Fax: +1 650 596 1180
Contact: Mr. Wally Hansen