Sandvik Materials Technology Deutschland Gmbh

Alleima Gmbh

Christofer Hedvall

Thomas Froböse

Udo Rauffmann

Leandro Finzetto

Tomas Froböse

Erika Hedblom

Jonas Gynnerstedt

Jonas Rosèn

Jonas Guhrs

Jonas Gynersted

Jonas GÜHRS

The present disclosure relates to a method for producing a rod-shaped element. In order to provide a method with which it is possible to produce a rod-shaped element which overcomes at least one of the disadvantages of the rod-shaped elements known from the state of the art, it is proposed according to the invention that the method has the steps of providing a tube made of a metal, wherein the tube has a longitudinal direction, providing at least one strand with a plurality of threads, wherein at least one of the threads has carbon fibres, introducing the at least one strand into the tube, with the result that the at least one strand extends in the longitudinal direction in the tube, and cold forming the tube, together with the at least one strand, using a forming tool, with the result that an outside diameter of the tube before the cold forming is larger than the outside diameter of the tube after the cold forming.

Method and device for producing a rod-shaped element

The present disclosure concerns a pipe structure for high-pressure applications. To provide a pipe structure which overcomes at least one of the disadvantages of the pipes known from the state of the art, it is proposed according to the disclosure that the pipe structure has an inner pipe comprising a metal, wherein the inner pipe has an inner surface and an outer surface, at least one strand which surrounds the outer surface of the inner pipe and has a plurality of yarns, wherein at least one of the yarns has carbon fibres, and a protective pipe surrounding the strand and the inner pipe.

Pipe structure and method for producing a pipe structure of this type

Transport system which makes to transport a wire or sheet of any length and with the required quality to the location of the use of the wire or the sheet. The transport system has a transport platform, a receptacle for the wire or the sheet, wherein the receptacle is configured such that the wire or the sheet may be received coiled on the receptacle, a drive, wherein the drive is configured such that the wire or the sheet may be conveyed by the drive in a transport direction, and a straightening device, wherein the straightening device is configured such that the wire or the sheet can be straightened with the straightening device, wherein the receptacle, the drive and the straightening device are arranged on the transport platform such that the wire or the sheet may be drawn automatically from the receptacle and fed to the straightening device by the drive.

Transport system for a wire or a sheet and method for delivering a wire or a sheet

The present disclosure relates to a system having an inner structure, wherein the inner structure comprises at least one inner tube made of stainless steel and at least one sensor device with at least one sensor to measure at least one condition of the system. Under an aspect of the present disclosure a system of this type is suggested, wherein the inner structure is coated with at least one layer of at least one plastic material.

Downhole tubing or umbilical with sensor and method for manufacturing it

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

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.

Cold-pilger rolling mill

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

An annealing furnace for annealing a strand of steel. The annealing furnace including a first heating apparatus for heating the strand during operation of the annealing furnace. A transport device advances the strand in a direction of transport through the annealing furnace during operation of the annealing furnace. The annealing furnace also includes a first cooling device for cooling the outer surface of the strand with a gas guide in the direction of transport behind the first heater, wherein the gas guide is arranged in such a manner that a gas flows along the outer surface of the strand during operation of the annealing furnace for cooling the strand.

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Bielefeld, Germany

Christofer Hedvall