passziváló

Passziváló is a Hungarian term that translates to "passivating" in English. It refers to a process or a substance that induces a passive state on a material's surface. This passive state is characterized by significantly reduced chemical reactivity, particularly with respect to oxidation or corrosion. The most common application of passiváló is in the context of metals, especially stainless steel.

When stainless steel is passivated, a thin, adherent, and protective chromium-rich oxide layer forms on its surface. This layer is invisible to the naked eye but acts as a barrier, preventing corrosive agents from reaching the underlying metal. The passivation process typically involves treating the metal with oxidizing acids, such as nitric acid or citric acid, under controlled conditions. This treatment removes free iron and other impurities from the surface and promotes the formation of a stable, passive chromium oxide film.

The benefits of passiváló are numerous. It significantly enhances the corrosion resistance of stainless steel, making it suitable for use in harsh environments like chemical processing, food and beverage production, and medical device manufacturing. Passivated surfaces are also cleaner and more hygienic due to their reduced tendency to react and form deposits. The process is crucial for maintaining the integrity and longevity of stainless steel components, ensuring their performance and aesthetic appeal over time.