Method and apparatus for continuous casting of a number of strands
AssigneeConcast AG
InventorsMarkus Schmid, Hans Gloor
Life of this patent
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Abstract
During the continuous casting of at least two strands, withdrawn with the same speed from the continuous casting molds, the withdrawal speed for both strands should be adjusted in accordance with the quantity of cast metal, typically steel, infed to the first continuous casting mold i.e. also the level of molten metal therein. The infed quantity of steel is regulated in at least one further continuous casting mold as a function of such withdrawal speed or velocity.
Claims14
In a method for the continuous casting of a number of strands, wherein steel from at least one tundish is cast into continuous casting molds, the thus formed strands are withdrawn from the continuous casting molds at the same speed, cooled and the levels of molten steel in the continuous casting molds are maintained at desired heights, the improvement which comprises the steps of:
- controlling the withdrawal speed in a first of said continuous casting molds as a function of the level of molten steel in said first continuous casting mold;
- measuring the level of molten steel in each of the other molds;
- and
- regulating the quantity of infed steel flowing into each of said other molds as a function of the level of molten steel in each respective other mold.
A method of continuous casting a number of strands, comprising the steps of:
- providing at least a first continuous casting mold and a second continuous casting mold;
- casting molten metal from at least one tundish into said first and second continuous casting molds in order to form therein continuously cast strands;
- withdrawing the continuously cast strands from the continuous casting molds at the same speed;
- controlling the withdrawal speed of the continuously cast strand at the first continuous casting mold as a function of the level of molten metal in the first continuous casting mold;
- measuring the level of molten metal in the second continuous casting mold;
- and
- regulating the quantity of infed molten metal to the second continuous casting mold as a function of the level of molten metal in the second continuous casting mold.
An apparatus for continuously casting a number of strands comprising:
- at least one tundish having at least two pouring nozzles;
- at least two continuous casting molds;
- said two pouring nozzles being respectively arranged above related ones of said at least two continuous casting molds;
- bath level-measuring means operatively associated with said continuous casting molds;
- secondary cooling means for cooling the continuously cast strands formed in and emanating from the continuous casting molds;
- common strand withdrawal means arranged following the secondary cooling means;
- said at least two continuous casting molds defining a first continuous casting mold and a second continuous casting mold;
- said bath level-measuring means comprising a bath level-measuring device provided for the first continuous casting mold;
- control means for controlling the speed of the common strand withdrawal means and with which there is electrically connected said bath level-measuring device;
- said bath level-measuring means comprising a further bath level-measuring device provided for the second continuous casting mold;
- and
- regulation means for regulating the infed quantity of molten metal with which there is electrically connected the bath level-measuring device of the second continuous casting mold.
Dependencies are inferred from the claim text.