Installation of a new immersion pickling tank

The film was recorded using the Timelaps method. 


Why pickle stainless steel?


From a chromium content of >12%, stainless steel forms a passive layer that protects the material and makes it corrosion-resistant. Impurities, extraneous rust and, above all, weld seams and their oxide layers destroy this passive layer, so that there is no protection against external media such as moisture. In addition to grinding and brushing, pickling is a cost-effective way of removing this contamination. During pickling, material in the µm range is removed, creating a metallically clean surface. On this surface, the chromium reacts with the oxygen in the atmosphere to form a new passive layer. This effect is achieved directly after pickling with additional passivation.
After 25 years of constant use of pickling (hydrofluoric acid and nitric acid), it was time for a new immersion pickling tank. A steel core, which is completely covered with PE, creates a container that holds 35 m³ of stain..
With a size of 8m x 2.5m x 2m, it is also possible to pickle large containers or pipelines.
In addition to our ongoing production, we also offer contract pickling. Thanks to constant modernization and monitoring, our pickling is always up to date.