METHOD FOR CONTROLLING CHARGING ORDER OF ROLLING MATERIAL INTO HEATING FURNACE FOR HOT ROLLING

• Main Authors: KOMORI SHIGEYUKI, ISHIKAWA YUKIO, SHIBATA MASAJI
• Format: Patent
• Language: English
• Published: 07.03.1988
• Subjects: CHEMISTRY; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; PERFORMING OPERATIONS; PUNCHING METAL; ROLLING OF METAL; TRANSPORTING

PURPOSE:To reduce the heat radiating loss in steel material and to reduce the reheating loss by controlling charging order in a heating furnace, so as to be changeable in accordance with the prescribed order decision condition at the time of non-coinciding the carrying order of steel material with the charging order into the heating furnace after continuously casting. CONSTITUTION:When the steel materials are suitable to a rolling schedule, they are charged into the heating furnace as the rolling schedule after casting. But, when the steel material with different order arrives due to disturbance of the steel material supply against the rolling schedule, the charging order into the heating furnace for the steel material to match the rolling schedule under prescribed order condition is rearranged. And, when the steel material is suitable to the rearranged schedule, it is charged into the heating furnace, but in case of unsuitable steel material, charging is held off and for example, it is stored in the slab yard. Therefore, when the order of arrival of steel material is changed, the probability of changing in the order of arrival is increased, and the energy loss for heating radiation and reheating is reduced.