Plant and method for the temperature-equalization of slabs downstream of a continuous casting plant
AssigneeDanieli & C. Officine Meccaniche SpA
InventorsGiampietro Benedetti, Bruno Di Giusto
Life of this patent
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Abstract
The plant (10) includes a temperature-equalization furnace (16) and an inlet shears (12) and an outlet shears (17) positioned respectively at the inlet and outlet of the furnace. The furnace is equipped with inlet and outlet doors, and cooled rollers connected to a motor for driving them in an oscillatory motion. In a method of continuous strip rolling using such a plant, in the event of an obstacle in a rolling train (18), the part of slab (20) not yet rolled is sheared by the outlet shears, returned to the furnace and kept there until the obstacle has been removed. During retention in the furnace, the slab is kept in a to-and-fro movement by means of oscillatory rotation of the cooled rollers.
Claims11
In a plant for continuously producing strip from a continuous casting machine, the improvement comprising a temperature-equalization plant comprising:
- a temperature-equalization furnace having an inlet door and an outlet door;
- rollers rotatably mounted for oscillatory movement in said temperature-equalization furnace, means for cooling said rollers, and drive means for driving said rollers to move slab material forward in the temperature-equalization furnace, said drive means including means for driving the rollers in an oscillatory movement in one angular direction and then an opposite angular direction whereby slab material is oscillated to-and-fro while being retained within the temperature-equalization furnace;
- an inlet shears upstream of said inlet door of the temperature-equalization furnace;
- and
- an outlet shears downstream of said outlet door of the temperature-equalization furnace.
A method for continuously producing rolled strip from slab received from a continuous casting machine, comprising shearing slab from a continuous casting plant with an inlet shears into slab segments, heating to equalize the temperature of the slab segments in a temperature-equalization furnace having an inlet door, an outlet door, and cooled drive rollers supporting the slab segments, and rolling the heated slab segments in a rolling train, the improvement wherein in the event of an obstacle in the rolling train, the slab segments from the temperature-equalization furnace not yet rolled are sheared from the rolled slab segments by outlet shears, returned to the temperature-equalization furnace and retained in the temperature-equalization furnace in to-and-fro oscillatory movement upon the cooled drive rollers until the obstacle has been removed.
Dependencies are inferred from the claim text.