Method for producing a household appliance element and household appliance element

摘要

The method comprises introducing an optical marker (14a), which is visible only under a special condition. The marker is formed at an external surface of a raw item of a household appliance element (10a). The optical marker is formed by laser handling. A laser light is focused with a radiation intensity of 1 GW/cm 2. A pulsed laser with pulse duration of 50 ns is used. The laser light has a focus diameter of 30 mu m. The pulsed laser has a pulse repetition frequency of 0.5-20 kHz. A laser focus is relative to the raw item of the household appliance element with a rate of 100-400 mm/seconds. The method comprises introducing an optical marker (14a), which is visible only under a special condition. The marker is formed at an external surface of a raw item of a household appliance element (10a). The optical marker is formed by laser handling. A laser light is focused with a radiation intensity of 1 GW/cm 2. A pulsed laser with pulse duration of 50 ns is used. The laser light has a focus diameter of 30 mu m. The pulsed laser has a pulse repetition frequency of 0.5-20 kHz. A laser focus is relative to the raw item of the household appliance element in parallel processing lines with a rate of 100-400 mm/seconds and with a line spacing of adjacent lines of 1-200 mu m. An independent claim is included for a household appliance element.