Method for changing the dimensions of a strand during continuous casting
AssigneeConcast AG
InventorHans Gloor
Life of this patent
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Abstract
To obtain a short adjustment time with small risk of metal break-out, it is intended during the changing of the dimensions of a continuously cast strand to alter during the casting operation i.e. while the pour or teeming operation is in progress, at least during a time interval of the pivotal movement of the mold wall, the mutual relationship of the displacement speeds of two devices for moving the mold wall and the position of the pivot axis of the mold wall is shifted parallel to its starting position.
Claims7
A method of changing the dimensions of a continuously cast strand during the continuous casting operation while a pour is in progress, comprising the steps of:
- providing for at least one movable mold wall two mold wall-displacement devices arranged behind one another with respect to the direction of travel of the continuously cast strand;
- moving said at least one movable mold wall by means of said two displacement devices about a pivot axis extending transversely with respect to the lengthwise axis of the cast strand and parallel to the mold wall;
- at least during a time span of the pivotal movement of the mold wall altering the mutual relationship of the displacement speeds of both displacement devices;
- shifting the position of the pivot axis essentially parallel to its starting position;
- and
- prior to termination of the changing of the dimension of the strand pivoting the mold wall into a position corresponding to the desired casting taper.
Dependencies are inferred from the claim text.