Method of changing the cross sectional format of a strand and a plate mould for carrying out the method
AssigneeVoest-Alpine Aktiengesellschaft
InventorErnst Bachner
Life of this patent
Estimating the term…
Abstract
A method of changing the cross-sectional format of a strand when continuously casting strands by using a mould, involves at least one mould side wall which is displaced relative to an opposite mould side wall and has its inclination changed. According to the method the displacement of the mould side wall during casting is effected by step-wise changing of the inclination in a manner that, in a first step, the upper or lower rim region of the mould side wall is displaced in one direction, and, in a second step, the opposite rim region of this mould side wall is displaced in the same direction.
Claims14
In a method of increasing and decreasing, respectively, the cross-sectional format of a continuously cast strand formed by a mould having oppositely arranged mould side walls, which method includes displacing at least one of these mould side walls relative to the oppositely arranged mould side wall and changing the inclination of said mould side wall, said mould side wall including an upper rim region and a lower rim region, the improvement which is characterized in that displacement of said at least one mould side wall is effected during casting, at a particular casting speed such that the strand is out of contact with the mould side wall closely below the casting level, by step-wise changing of its inclination in a manner so as to displace, in a first step, said lower rim region or said upper rim region, depending on whether the cross section is being increased or decreased, respectively, in a certain direction, i.e. outwardly or inwardly, respectively;
- and to displace, in a second step, the respective other rim region of said at least one mould side wall into the same direction.
In a method of increasing the cross-sectional format of a strand when continuously casting strands by using a mould having oppositely arranged mould side walls, which method includes displacing at least one of these mould side walls relative to the oppositely arranged mould side wall and changing the inclination of said mould side wall, said mould side wall including an upper rim region and a lower rim region, the improvement which is characterized in that displacement of said at least one mould side wall is effected during casting, at a particular casting speed such that the strand is out of contact with the mould side wall closely below the casting level, by step-wise changing its inclination, wherein, in a first step, said lower rim region of said at least one mould side wall is outwardly displaced from an inclined position until said at least one mould side wall assumes an approximately perpendicular position, and wherein, in a second step, said upper rim region of said at least one mould side wall is also outwardly displaced so that said at least one mould side wall again assumes an inclined position.
Dependencies are inferred from the claim text.