A roll stand, wherein at least two rolls for forming a workpiece are accommodated in the stand, and wherein a rolling force acting during the forming is supported by the roll stand, wherein the roll stand is produced by means of additive manufacturing.

A roll stand, wherein at least two rolls for forming a workpiece are accommodated in the stand, and wherein a rolling force acting during the forming is supported by the roll stand, wherein the roll stand is produced by means of additive manufacturing.

A method for producing a steel tube including the step of the manufacturing a steel tube having an inner tube wall, an outer tube wall, and a free tube cross-section enclosed by the inner tube wall, wherein after the manufacturing, the steel tube includes at least one contaminant on the inner tube wall. After the manufacturing of the steel tube, the inner tube wall is cleaned by introducing liquid or solid CO.sub.2 into the free tube cross-section, and of applying the liquid or solid CO.sub.2 onto the inner tube wall to remove the contaminant therefrom.

A method for producing a steel tube including the step of the manufacturing a steel tube having an inner tube wall, an outer tube wall, and a free tube cross-section enclosed by the inner tube wall, wherein after the manufacturing, the steel tube includes at least one contaminant on the inner tube wall. After the manufacturing of the steel tube, the inner tube wall is cleaned by introducing liquid or solid CO.sub.2 into the free tube cross-section, and of applying the liquid or solid CO.sub.2 onto the inner tube wall to remove the contaminant therefrom.

A cold pilger rolling mill includes a pair of rolls rotatably attached to a roll stand, a crank drive on a driveshaft, which is rotatably mounted around a rotation axis, with a counterweight attached to the crank drive at a radial distance from the rotation axis, and a push rod with a first and a second end. The first end of the push rod is rotatably attached on the crank drive wherein, during the operation of the mill, a rotation of the crank drive is converted into a translation movement of the roll stand between a first and a second reversal position. The radial distance of the first end of the push rod from the rotation axis is adjustable, so that the distance between the two reversal positions of the translation movement of the roll stand is adjustable.

A sliding sleeve for a synchronous manual transmission assembly is produced by the following steps: a tubular blank is provided in which an internal toothing arrangement is present, and the blank which is provided with the internal toothing arrangement is further processed to form a plurality of sliding sleeves.

A sliding sleeve for a synchronous manual transmission assembly is produced by the following steps: a tubular blank is provided in which an internal toothing arrangement is present, and the blank which is provided with the internal toothing arrangement is further processed to form a plurality of sliding sleeves.

Pilger rolling train, which operates continuously for producing a tube, includes a pilger rolling mill for reducing the diameter of a hollow blank to form the tube, a first buffer for a plurality of tubes, wherein the first buffer has a device for bundling a plurality of tubes in a bundle, an annealing furnace for simultaneous annealing of a plurality of tubes, a second buffer for a plurality of tubes, wherein the second buffer for the tubes has a device for separating the plurality of tubes out of a bundle, and a straightening machine for straightening the separated tubes in succession, wherein the devices are disposed, in the direction of flow of the tube, in the aforementioned sequence, and wherein an automated transport device for the tube is provided between, respectively, the pilger rolling mill, the first buffer, the annealing furnace, the second buffer and the straightening machine.

Pilger rolling train, which operates continuously for producing a tube, includes a pilger rolling mill for reducing the diameter of a hollow blank to form the tube, a first buffer for a plurality of tubes, wherein the first buffer has a device for bundling a plurality of tubes in a bundle, an annealing furnace for simultaneous annealing of a plurality of tubes, a second buffer for a plurality of tubes, wherein the second buffer for the tubes has a device for separating the plurality of tubes out of a bundle, and a straightening machine for straightening the separated tubes in succession, wherein the devices are disposed, in the direction of flow of the tube, in the aforementioned sequence, and wherein an automated transport device for the tube is provided between, respectively, the pilger rolling mill, the first buffer, the annealing furnace, the second buffer and the straightening machine.

A gap control device for a Pilger die assembly of cold Pilger mills. The gap control device can independently control the height of a pair of bearing blocks which axially support an upper die. A lower plate has first and second receiving holes which respectively correspond to the upper portions of a pair of bearing blocks. First and second wedge plates are fitted into the receiving holes, and respectively have inclined surfaces on the upper portions thereof. First and second adjustment blocks respectively have inclined guide surfaces to be in surface contact with the inclined surfaces of the wedge plates, and are movable horizontally with respect to the lower plate. An upper plate is assembled to the upper portion of the lower plate to cover the adjustment blocks. First and second adjustment bolts allow the first and second adjustment blocks to be respectively manipulated in a horizontal direction.