Sandvik Materials Technology Deutschland Gmbh

Alleima Gmbh

Udo Rauffmann

Thomas Froböse

Christofer Hedvall

Erika Hedblom

Leandro Finzetto

Jonas Gynnerstedt

Jonas Rosèn

Jonas Guhrs

Christofer Hedval

Jonas Gynersted

Jonas GÜHRS

Sensor for high-pressure line and method for manufacturing thereof. The sensor detects parameters or properties of fluid conducted in a high-pressure line while maintaining the high pressure of the fluid. The sensor includes an inner tube extending concentrically in the outer tube that together form a tube and at least one groove which extends in the inner surface of the outer tube or in the outer surface of the inner tube in a longitudinal direction, at least one signal line arranged in the groove, and at least one pick-up element connected to the signal line and arranged at least in the groove or in at least one recess which is provided at least in the outer surface of the inner tube or in the inner surface of the outer tube in addition to the at least one groove. The outer tube is in frictional connection with the inner tube.

Sensor for a high-pressure line, and method for producing same

Cold pilger rolling mill for cold forming a hollow into a strain hardened tube with a roll stand with rollers mounted pivotably thereon. Efficient milling of long hollows is enabled without reducing the quality of the manufactured tubes. The cold pilger rolling mill has an unwinding device, wherein the unwinding device is arranged and in the feed direction of the hollow is located in front of the front mandrel thrust block such that at the unwinding device a spindle being rotatable around an axis being perpendicular to the feed direction of the hollow with the hollow wound thereon is receivable and in an operation of the cold pilger rolling mill the hollow is unwindable and feedable between the chuck of the front mandrel thrust block and the mandrel bar into the feed clamping sledge and the roll stand.

Cold pilger rolling mill and method for producing a pipe

A cold pilger rolling mill including a front mandrel thrust block that has a distance of at least 30 m from a feed chuck, measured with the feed clamping carriage at the rear reversal point thereof. The distance is measured between the rear (in the feed direction of the hollow) end of the chuck of the front mandrel thrust block and the front (in the feed direction of the hollow) end of the feed chuck of the feed clamping carriage at the rear reversal point thereof.

Method for manufacturing a tube of metal in which sensors are attached to tubes, which register and signal a damage of the tube. It is detrimental that protection of the sensors at these tubes against environmental influences is complex. In contrast, it is an object of the present disclosure to provide a method for manufacturing a tube, in which the signal line can be protectively mounted. To solve this object, a method for manufacturing a tube of metal is suggested with an outer tube and an inner tube, wherein a groove is drawn in an inner surface of the outer tube or in an outer surface of the inner tube and subsequently the inner tube and the outer tube are drawn together through a drawing die, wherein the inner dimension of the outer tube is reduced such that after the drawing the outer tube is force-fitted onto the inner tube.

Method for manufacturing a tube of metal as well as a tube of metal

A process for producing a high-grade steel tube includes the steps of: providing a tubular blank of an austenitic high-grade steel, wherein the high-grade steel comprises in weight % no more than 0.02% carbon, no more than 1.0% manganese, no more than 0.03% phosphor, no more than 0.015% sulfur, no more than 0.8% silicon, no more than 17.5% t to 18.5% nickel, no more than 19.5% to 20.5% chromium, no more than 6.0% to 6.5% molybdenum, no more than 0.18% to 0.25% nitrogen, no more than 0.5% to 1.0% copper, and a remainder of iron and unavoidable impurities; and cold-forming the blank into a tube.

Process for producing a high-grade steel tube and high-grade steel tube

A method for manufacturing a strand from a stainless steel by cold forming a billet into the cold-hardened strand and subsequently annealing the strand is provided. The method allows stainless steel strands to be produced, which have both a high tensile strength, as well as a high degree of elongation. The strand is heated to a temperature ranging from 400&#xb0; C. to 460&#xb0; C. while the strand is being annealed, and the cold-hardened strand is surrounded by a protective gas atmosphere during the heating process.

Method for producing a strand from stainless steel and strand made of stainless steel

A processing machine and method for planing an end surface of a finished pipe with a clamping device for the pipe to be processed via a tool holder with a planing tool, whereby the tool holder is driven by a motor and can rotate about an axis of rotation. The tool holder is driven by a motor so that it can rotate about an axis of rotation, whereby the clamping device and the tool holder are driven by a motor and can move toward one another in a direction parallel to the axis of rotation of the tool holder. The processing machine includes a cooling device that is arranged in such a manner that it cools the pipe to be processed and/or the planing tool with the aid of liquid and/or solid carbon dioxide during the operation of the device.

Processing machine and method for working the end of a pipe

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 COinto the free tube cross-section, and of applying the liquid or solid COonto the inner tube wall to remove the contaminant therefrom.

Method for producing a steel tube including cleaning of the inner tube wall

A method for producing a steel tube include the manufacturing of a steel tube having an inner tube wall, an outer tube wall (), and a free tube cross-section enclosed by the inner tube wall. After the manufacturing, the steel tube includes at least one contaminant on the outer tube wall and entails, after the manufacturing of the steel tube, cleaning of the outer tube wall by applying liquid or solid COonto the outer tube wall in order to remove a contaminant from the outer tube wall.

Method for producing a steel tube including cleaning of the outer tube wall

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

Winding device with which a tube produced in a rolling installation can be wound up outside the rolling installation. The tube which has already left the rolling installation is coiled or wound up in such a winding device for transport purposes. The disclosed device and method make it possible for the tube in the finished shaped condition to be put into a transportable state downstream of the roll stand while still other portions of the tube are at the stage of the tube shell or are just being shaped. For that purpose a winding device for a tube produced in a rolling installation has a bending device for curving the tube so that it can be wound in a spiral shape around a first axis, and a holding frame, wherein the bending device is mounted to the holding frame pivotably about a second axis substantially perpendicular to the first axis.

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Werther, Germany

Udo Rauffmann