Chemetall Gmbh

Guido Grundmeier

Peter Schmiedel

Peter Schubach

Bent Rogge

Boray Torun

Markus Voigt

Özlem Özcan

Christoph Ebbert

A device for installation on an inner circumferential surface-of a washing machine drum, comprising a housing, a voltage source and at least one electrode which is connected to the positive terminal of the voltage source and acts as an anode, it being possible for a washing liquor to flow through the device and said device comprising at least one inlet for introducing washing liquor into the device and at least one outlet for discharging washing liquor from the device. The inlet and the outlet are arranged on the device such that, when the device is in use position, said inlet and outlet are directly above the inner circumferential surface of the washing machine drum and the inlet is in a plane of which the surface normal extends. Use of this device and a related method are also disclosed.

Device for installation on an inner circumferential surface of a washing machine drum

A method for coating metallic surfaces with an aqueous composition, which contains an aqueous solution of a zinc salt, by flooding, spraying and/or immersion, wherein, for spraying or immersion, the initial temperature of the substrate lies in the range from 5 to 400&#xb0; C., in that, for flooding, the initial temperature of the substrate lies in the range from 100 to 400&#xb0; C. and in that an anticorrosive nanocrystalline zinc oxide layer is formed on the metallic surface. Corresponding aqueous composition, the nanocrystalline zinc oxide layer and the use of the coated substrates are also disclosed.

Method for coating metallic surfaces with nanocrystalline zinc oxide layers, aqueous compositions therefor and use of the surfaces coated in this way

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Paderborn, Germany

Guido Grundmeier