An apparatus for guiding tube processing devices, in particular planing devices, wherein the apparatus is arranged on an outer circumference of the tube to be processed, wherein the apparatus has at least two bands which extend in parallel.

A method of securing an insert in a preselected region of a workpiece. An opening wall is formed in the workpiece with an opening wall surface defining an opening to produce a remainder segment of the workpiece. The opening encompasses or coincides with the preselected region. An insert is provided to fit in the opening. An insert heated portion and a remainder segment heated portion are heated to a hot working temperature, at which they are plastically deformable. While the insert is subjected to an engagement motion, to move the insert relative to the remainder segment, an insert engagement surface of the insert is pressed against the opening wall surface, for plastic deformation of the insert heated portion and of the remainder segment heated portion, creating a metallic bond between the insert and the remainder segment. The insert and the remainder segment are allowed to cool, to bond them together.

A method of attaching a tube having a tube wall defining a tube channel therein to a workpiece having a workpiece wall. A workpiece opening defined by a workpiece opening wall surface is formed in the workpiece wall. A tube engagement surface is formed on the tube wall for engagement with the workpiece opening wall surface. A workpiece heated portion in the workpiece, and a tube heated portion in the tube, are heated in a non-oxidizing atmosphere by energized heating elements to a hot working temperature. The tube is subjected to an engagement motion, moving the tube engagement surface relative to the workpiece opening wall surface. While the heated portions are at the hot working temperature, and while the tube is subject to the engagement motion, the tube engagement surface is pressed against the workpiece opening wall surface, for plastic deformation of the heated portions, to create a metallic bond.

The disclosed apparatus, systems and methods relate to the design principles for forming a welded joint between two sections of tubing or pipe. The material at the end portion of a first section of tubing to is folded inwardly to create a support surface. This support surface improves the ability to weld light gage material with traditional arc welding and it creates conditions to allow brazing to be as strong as traditional arc welding by using A shaped piece of filler material which is located at the intersection between the support surface of the first section of tubing and a side wall section of the second section of tubing. While holding together the first and second sections of tubing with the filler material, heat is applied at the intersection at a temperature and for a duration sufficient to melt the filler material and form the 3t joint.

A station for a hyperloop transportation system includes a tube comprising a low-pressure environment, a plurality of tracks within the tube, each track adapted to carry a hyperloop capsule, and a turntable joined to an end of the tube, adapted to rotate a capsule one hundred and eighty degrees. The station also includes a platform disposed on a side of the tube, adapted to hold a plurality of people, and a plurality of gates disposed in one side of the tube. Each gate includes a door forming a barrier between the low-pressure environment of the tube and an exterior of the tube, and a sealing mechanism adapted to form a seal with a hyperloop capsule.

The invention relates to a method of manufacturing a pipe having a connecting flange, wherein the flange part is welded to an end face pipe end and at least one protrusion of the pipe or of the flange part is provided in the region of the flange hub and contacts the inner wall of the other part on the joining together of the pipe and the flange part to cover the formed weld joint to the pipe interior; and wherein finally the pipe and the flange part are welded to one another.

Within examples, a method of manufacturing a double-walled titanium conduit is described. Example methods include stitch welding multiple concentric sheets to form a stitch layer, providing the stitch layer between an inner wall and an outer wall of the double-walled titanium conduit, circumferentially seam welding the inner wall and the outer wall to the stitch layer to create a welded assembly, die forming the welded assembly at temperature and pressure to form inner structures between the multiple concentric sheets according to stitch welding lines and to enable a diffusion bond process among the inner wall, the stitch layer, and the outer wall, and removing the double-walled titanium conduit from the die.

A method for producing a tube from metal is stated, by use of which method a metal strip by means of a drawing-off installation is moved in the longitudinal direction of said metal strip and is guided through a forming station in which said metal strip is formed to a slot tube having a slot running the in the longitudinal direction. The two edges of the metal strip abut to one another at the slot. Said two ends for producing a fully closed tube are welded to one another by use of a welding installation that is equipped with a laser. The slot tube after leaving the forming station is initially moved into the region of the laser and is then stopped. Thereafter, the regions of the edges of the slot tube that are to be welded to one another are pre-treated by the laser. Thereafter, the power of the laser is set to the welding power thereof that corresponds to the welding temperature, and by switching on the drawing-off installation the slot tube is simultaneously moved in the longitudinal direction of the latter.

A method for manufacturing an evaporator for ice-making includes: a preparation step for preparing a plate member, a finger member, and a capillary tube, the plate member being provided with a through hole and formed as a developed view of a tube; an insertion step for inserting the finger member into the through hole so that the finger member at least partially passes through the through hole; a connection step for fixedly connecting the finger member to the plate member; an insert placement step for placing at least a part of the capillary tube on the plate member; and an evaporation tube formation step for forming an evaporation tube, which is provided with a refrigerant flow path through which a refrigerant flows, by bending the plate member into a tube shape and connecting end portions.

A welding system including a welding electrode, a closed-loop cooling device, and a vent. The closed-loop cooling device is configured to cool the welding electrode. The closed-loop cooling device includes a pump and a water line. The vent is located along a path of the water line. The vent is configured to release air trapped within the water line.