Schmitz Cargobull AG
Structural Bonding

 Photo: Schmitz Cargobull
Use of Openair®-Plasma application for structural bonding of reefer semitrailer superstructures
Since 2003 Schmitz Cargobull AG, Europe's leading trailer manufacturer pretreats annually more than 15000 reefer semi-trailers with Openair® plasma before their structural bonding. The previously manually performed tasks of surface cleaning and roughening were to be replaced by an industrial process. The primary objective was to completely eliminate organic solvents and thereby to exclude the potential risk of environmental pollution.

Application

The refrigerated semi-trailers’ superstructures feature a self-supporting system, a modular structure which is built completely rivet-free. Walls and ceilings of the semi-trailers consist of a sandwich construction. This is a vapor diffusion-tight panel with two plastic-coated steel plate surface layers and an interposed high-density polyurethane hard foam core. The self-carrying characteristic is created by adhesive bonding of the large-size panel into angled aluminium rails. For achieving extremely good adhesion and particularly tight sealing of the bonding joints, the panels are pretreated with Openair® atmospheric pressure plasma in the area of the surfaces to be bonded. The coatings are mainly duroplasts which are given new adhesive-friendly surface properties by plasma activation.
Technical uncharted territories require learning processes on the part of the users as well as supporting accompaniment of the developers. Johannes Pierick, Director Quality Control and Application Technology at Schmitz Cargobull, recalls: “Plasmatreat had promised us qualified technological support in case of a contract of purchase. This commitment – decisive for the conclusion of the contract - was implemented by the staff members of Plasmatreat to our greatest satisfaction from the first day of cooperation until today. After the long-term use of Openair®-Plasma I can state today: The results are excellent!”

The plasma installation consists of two nozzle systems with four rotary nozzles which are offset to each other. The nozzles distribute the plasma at a 45° angle, with a treatment width of 47mm per nozzle. Depending on the direction, 150-180mm of the surface can now be cleaned and activated in a single pass on a minimum width of 300 mm and over the entire length or width of the panel.

Benefits

Openair® plasma offers the user the following benefits:
  • Environmentally friendly manufacturing method
  • Complete elimination of organic solvents in the bonding process
  • Space-saving application of the plasma installation
  • High process safety
  • Improved adhesion and tightness of the bonding joints
  • Elimination of work steps > Rationalization of the manufacturing process
  • Exclusion of environmental impact at the workplace
  • Operating cost reduction


Schmitz Cargobull AG
www.cargobull.com

Put atmospheric plasma to the test in your production.
Become development partner of Plasmatreat!

Canada
Plasmatreat North America Inc.
1480 Sandhill Dr., Unit 8,
Ancaster, ON L9G 4V5
Canada

Phone: +1 905 304-5200
Fax: +1 905 304-5260

Contact: Mr. Tim Smith
tim.smith@plasmatreat.com


USA
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
jeff.leighty@plasmatreat.com


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
wally.hansen@plasmatreat.com

 
 
Glasstec 2016
Glasstec 2016
International Trade Fair for Glass Processing, Production and Products

September 20 – 23, 2016
Hall 11, Booth G46
Düsseldorf, Germany

Micronora 2016
International microtechnology and precision trade fair

September 27 – 30, 2016
Micropolis / Parc des Expositions
Besancon Cedex, France

Language