Methods and apparatus for cleaning or descaling thin blooms and strips in hot rolling lines, rolling processing equipment or equivalent equipment

摘要

The invention relates to a method of cleaning or descaling thin slabs and rolled strips in a hot strip rolling mill train and is characterized by use of cryogens such as oxygen or compound formed of cryogens with a carrier medium such as compressed air which are sprayed into slab surface or strip surface in liquid, deep-freeze form. The invention also relates to a method of cleaning and/or descaling of strips in a strip treatment installation with the above-mentioned characterized features, and to a correspondingly equipped apparatus.