Pilger rolling mill for working a hollow into a tube has a first roll stand mounted linearly moveable in a direction of motion. Translational motion of the roll stand causes rotational motion of the drive gear due to the cogging of the drive gear with the gear rack and, hence, also rotational motion of the roller arranged on the shaft of the drive gear and rotational motion of the other one of the two rollers in the opposite direction. Roll stand is connected with a crank drive and rotational motion of a motor drive is transformed into an oscillating translational motion of the roll stand by a connecting rod. Gear rack holder allows adjustment of the pilger rolling mill with respect to tube diameters of finished rolled tubes by arranging the first roll stand exchangeable by a second roll stand with a second dimension being different from the first dimension.

A rolling mill, in particular a cold rolling mill, including: rolls or even sets of rollers comprising at least one pair of work rolls capable of defining a roll gap of a strip to be rolled, at least one bar for spraying a lubricating and/or cooling fluid, disposed near the plane of the strip to be rolled, a stand inside of which the rolls are arranged, at least one device for adjusting the inclination of the at least one bar comprising an actuator, such as a hydraulic cylinder configured to change the inclination of the bar around the pivot axis. The actuator of the device for adjusting the inclination is arranged, on the second side of the stand, opposite to the first side of the maintenance window.

A multistage rolling mill includes: four columns 12a, 12b, 12c, and 12d linking, in an up-down direction, four corners of each of an upper mill housing 8, a lower mill housing 9, and a base mill housing 10; a press-down section that is provided on an upper side of the four columns 12a, 12b, 12c, and 12d in a vertical direction and that is capable of raising and lowering the upper mill housing 8; and a lower mill housing spacer that is provided between the lower mill housing 9 and the base mill housing 10 and that adjusts the position of the lower mill housing 9 in the vertical direction. With this configuration, a compact multistage rolling mill with a smaller installation space than a conventional cluster-type rolling mill is provided.

The present invention is a casting product reduction apparatus that applies reduction to a casting product drawn from a mold with a sufficient reduction force and thereby can surely decrease center segregation and porosity and suppress occurrence of internal cracks so as to manufacture a high-quality casting product and includes: a pair of casting product press rolls that hold and press the casting product therebetween; backup rolls that support the casting product press rolls; and a pair of frames arranged to face each other, wherein three or more sets of the casting product press roll and the backup roll are arranged in a casting product drawing direction on each of the frames, and wherein a reduction means that decreases and increases a distance between the frames is provided at two or more places on the pair of frames.

The present invention is a casting product reduction apparatus that applies reduction to a casting product drawn from a mold with a sufficient reduction force and thereby can surely decrease center segregation and porosity and suppress occurrence of internal cracks so as to manufacture a high-quality casting product and includes: a pair of casting product press rolls that hold and press the casting product therebetween; backup rolls that support the casting product press rolls; and a pair of frames arranged to face each other, wherein three or more sets of the casting product press roll and the backup roll are arranged in a casting product drawing direction on each of the frames, and wherein a reduction means that decreases and increases a distance between the frames is provided at two or more places on the pair of frames.

A rotary crimping tool assembly includes a tool housing defining a crimping chamber, and one or more crimp wheels within the crimping chamber. The crimping chamber is configured to receive the portion of the structure in proximity to the crimp wheel(s). The crimp wheel(s) are configured to be pressed into and rotated relative to the portion of the structure to form one or more crimps in the portion of the structure.

A rolling process for long solid-section products includes the steps of rolling stock through a plurality of rolling mill stands, the rolled stock being subjected to a tensile load, between the plurality of stands, that generates a single-axial deformation greater than 0.1 in the rolling direction, and is also deformed by compression between the rolls of at least one of the rolling mill stands, thereby achieving a reduction in the cross section area of at least 5%, preferably of between 5 and 50%. A rolling mill, in which a plurality of stands is connected by spacer elements designed to offset the tensile load; a rolling mill, in which a plurality of stands is connected by elements designed to offset the overturning moment generated by the tensile load; and a rolling mill, in which the aforesaid rolling stands maintain a non-slip condition.

A roller cage for a profiling line, comprising: a support frame (F1); a first motor equipped with a first substantially horizontal spindle (12) that projects in a cantilever fashion externally to a shoulder (S1) of the support frame (F1) into an operating space of the line; a first transverse roller (13), assembled directly on the first spindle (12); a movable frame (F2), with which an upright first roller (33) is associated, rotating about a first shaft (32) which projects in a cantilever fashion from the movable frame (F2); the movable frame (F2) is movable between an operating position, in which the first shaft (32) assumes a substantially vertical position, and a non-operating position, in which the first shaft (32) assumes a substantially horizontal position and is facing the same way as the first spindle (12), towards the operating space of the line.

An assembly, system and method for compensating a crane position offset error based on wheel float by viewing, with an optical sensor located on a trolley on the crane, a target or target shape adjacent a storage rack containing a vertically stored mill roll and determining a positional compensation signal based on a separation or offset of a center of a field of view of the sensor from a center of the target shape. The assembly, system or method compensates for the crane position offset error by moving the crane, as instructed by the positional compensation signal, a distance equal to the separation or offset of the center of the field of view of the sensor from the center of the target.

An assembly, system and method for compensating a crane position offset error based on wheel float by viewing, with an optical sensor located on a trolley on the crane, a target or target shape adjacent a storage rack containing a vertically stored mill roll and determining a positional compensation signal based on a separation or offset of a center of a field of view of the sensor from a center of the target shape. The assembly, system or method compensates for the crane position offset error by moving the crane, as instructed by the positional compensation signal, a distance equal to the separation or offset of the center of the field of view of the sensor from the center of the target.