Annealing process for hot rolled steel plate produced by thin slab casting and rolling technology

• Main Authors: SU YI, YAO ZHANKUN, YIN HUANZE, ZHANG ZHEN
• Format: Patent
• Language: Chinese; English
• Published: 08.10.2014
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention provides an annealing process for a hot rolled steel plate produced by a thin slab casting and rolling technology. The raw material is the steel plate produced by thin slab casting and rolling, and the annealing process comprises the steps of hot rolling, annealing, acid pickling, washing, drying and smoothing. The mature cold rolling batch annealing technology is used for softening annealing of the hot rolled steel plate produced by the thin slab casting and rolling technology, the molding performance of the steel plate is close to or equal to the performance of the cold-rolled annealed plate, downstream users can substitute the cold-rolled plate with the steel plate, and the raw material cost is lowered.