摘要:
The invention relates to a device and a method for handling a metal strip. The device comprises a coiling device (110) with a coiling mandrel (112) for winding the metal strip to form a coil (200) on the coiling mandrel and a coil stripper car (120) with supports (124) for receiving the coil (200) from the coiling mandrel and removing the coil from the coiling device (110). In order to additionally secure the metal strip in the coiling device during the transfer from the coiling mandrel onto the coil stripper car and during a transport by means of the coil stripper car, a first hold-down arm (130) is provided for exerting a first hold-down force (F1) onto the outer circumference of the coil (200) in order to press the coil onto the supports of the coil stripper car.
摘要:
The invention relates to a device and a method for depositing a metal coil (200) on two support points (110-1; 110-2). In order to avoid risks, in particular instability, while depositing metal coils having high residual stress, according to the invention the risk of an unstable position of equilibrium is checked, and, if a change in the relative position of the two support points (110-1; 110-2) with respect to one another is foreseeable, it is carried out such that the metal coil (200) comes to rest on both support points at least approximately in a stable position of equilibrium.
摘要:
When rolling hot-rolled strips, different draughts per pass might occur during the rolling operation over the length of the roll gap, due to changes in the hardness of the rolling stock, to the roll gap itself or to the geometry of the incoming rolling stock. These different draughts per pass lead to lateral deviations and shifts of the rolling stock in the roll stand and to a lateral bending of the outgoing hot-rolled strip. In order to avoid these defects by intentionally influencing the geometry of the rough-rolled strip, it is proposed to interconnect in at least one roughing-down stand a dynamic positioning in the roughing-down stock (1) with fast and powerful lateral guides (8, 9) arranged before and after the roughing-down stand (1), by corresponding regulation operations, in such a way that a grainy or tapering bloom (4) is shaped into a straight and taper-free roughed-down strip (5) in one or more passes, in continuous or reciprocating operation.
摘要:
The invention relates to a method and a device for depositing a metal coil (200) on two stationary support points (110-1; 110-2). In order to be able to deposit even metal coils that have high internal residual stress in a stable manner on the two support points, according to the invention, a third support point (140) is pivoted against the outer circumference of the metal coil (200) if needed.
摘要:
The invention relates to a coiling device (1) for winding a rolled product (2), in particular a steel band, comprising a coiling mandrel (4) mounted so as to be rotatable about an axis (3). The rolled product (2) is fed to the coiling mandrel (4) by a driving apparatus (5) and can be wound using the coiling mandrel (4). A shaft flap (6) is arranged between the driving apparatus (5) and the coiling mandrel (4), the end region (7) of said shaft flap (6) located at a distance from the coiling mandrel (4) being mounted to as to be pivotable about a pivoting axis (8) which runs parallel to axis (3). In order to create a tightly wound coil, according to the invention at least one spraying element (10) is arranged on the side (9) of the shaft flap (6) facing away from the coiling mandrel (4) in order to discharge a coolant, wherein the shaft flap (6) has at least one opening (11) in order to discharge the coolant from the spraying element (10) through the shaft flap (6) on the side (12) of the shaft flap (6) facing the coiling mandrel (4) and to spray the coolant onto the surface of the rolled product (2). The invention furthermore relates to a method for operating a coiling device.