Robert Boschgmbh

Christoph Roland Hoelzl

Martina Bubrin

Tim Bergmann

Milan Pilaski

Juergen Hackenberg

Frank Miller

Michael Lingner

Lutz Baumgaertner

Sabrina Rathgeber

Tina Hirte

Bernhard Gries

Gabriel Petersen

Herbert Noelscher

Roland Kraus

A pretreatment method for pretreating components, which are each formed of at least two different materials, prior to a coating process. The pretreatment method includes the steps: alkaline degreasing; chemical pickling in a first pickling medium; anodic pickling in a second pickling medium; and cathodic degreasing.

Pretreatment method for pretreating components prior to electroplating

A coating device for coating components, in particular for nickel-plating spark plug housings. The coating device includes: a housing having an outer anode that is designed to receive the component, an inner anode that can be introduced into a through-opening of the component, and a voltage-generating device, the voltage-generating device being designed to generate a first voltage between the outer anode and the component, as well as a second voltage between the inner anode and the component. The housing has an inlet and an outlet for introducing and discharging a process medium into or out of the housing.

Coating apparatus for coating components

A spark plug housing. The spark plug housing includes an inner side, an outer side, and a longitudinal axis, which extends from an end of the spark plug housing facing toward the combustion chamber up to an end of the spark plug housing facing away from the combustion chamber. The spark plug housing includes a circumferential shoulder on its inner side, which is designed so that a spark plug insulator rests thereon, and a corrosion protection layer on its inner side, which is formed on a section of the inner side of the spark plug housing, the section extending from the end of the spark plug housing facing toward the combustion chamber to at least over the shoulder and along the inner circumference of the spark plug housing.

Spark plug housing including corrosion protection on the inner side and spark plug and manufacturing method

Growing community of inventors

Kornwestheim, Germany

Christoph Roland Hoelzl