Steel pickling using pickling acid concn. and compsn. control

摘要

In the acid pickling of steel (esp. special steel) strip, the acid concn. and/or compsn. is selected in accordance with the steel quality, the pretreatment and the pickling operating parameters. Also claimed is a steel (esp. special steel) strip pickling plant with one or more acid pickling baths, the novelty being that at least two circulation tanks with different acid concns. and/or compsns. are provided.