The present invention is an electrical device that can seal an array of glass ampules and micro ampules using plasma arc produced by electricity. The device can produce high temperature by making mini plasma arcs which will melt down the glass and make a permanent seal. The arc is produced in a sealing head which covers the plasma arc and can focus the heat in a very small area so that the heat can be directly transferred to the glass without any intermediate, thereby increasing the efficiency. The plasma arc can increase the heat by using multiplication of the arcs encased in the sealing head.

An enclosed heat sink with a side wall structure is provided. The side wall structure includes a welding body having a first welding plane and a side wall structure having a second welding plane. The first welding plane and the second welding plane are pressured and welded to each other, such that the welding body and the side wall structure encapsulate a cavity. A width of the second welding plane is smaller than a width between two side surfaces of the side wall structure.

Disclosed is a temporary and mobile apparatus and methods for manufacturing welded products, including pressure vessels, wherein heating and/or cooling is to be applied to substrate material of the weld site. Certain embodiments include panels arranged to form a convection section that allows for improved heating and cooling of substrates and provide improved welding processes. Embodiments can include a manifold along used for heating and cooling. Apparatuses and methods of using making those apparatuses for improved welding are described herein.

Methods and systems for forming vacuum insulated containers, such as beverage and food containers, are described. The methods and systems include using a laser to close openings in walls of the container while the container is held at vacuum conditions. The closing of the opening forms the vacuum space within the walls of the container.

The present invention provides a modification to the EBW process, which is referred to as a slope-out methodology, the results in the formation of a “slope-out portion” located generally in that region of the overall weldment located at the end of the ordinary EBW welding process for joining two components. The slope-out portion overlaps with the initial weld of the workpiece for a given distance or length along the weld and effectively eliminates the keyhole and provides a weldment that has minimal to no defects, particularly in the slope-out portion. The slope-out methodology begins by adjusting various parameters related to the electron beam to essentially decay the beam. In general, the focus position of the electron beam is moved from under-focused (focal position in the bulk of the material) to over-focused (focal position ahead of the workpiece surface) as the overlapping weld is made.

A hydraulic pressure vessel long seam welding jig device having a triangular frame, a pair of hydraulically actuated clamp mechanisms each having a clamp activating hydraulic cylinder operatively associated therewith, whereby each of said clamp mechanisms are positioned on opposite ends of said carriage beam and arranged to hold a workpiece during a long seam welding operation.

The invention discloses a device for preheating before welding and post-welding heat treatment of tank. The device includes a first roller, two electric heating belts, calipers, a thermostat, two positioners and hinges. Both of the electric heating belts are arranged around the tank and distributed on both sides of the welded seam. A number of calipers are provided on both sides of each electric heating belt, one end of each caliper can operatively clamp the side of the electric heating belt, another end of each caliper is rotatably connected to a first roller. The hinge is connected to the electric heating belt, and one end of the hinge away from the electric heating belt is in a fixed state. The heating temperature of the electric heating belt is controlled, thereby realizing preheating of the tank before welding, heat preservation during welding and post-welding heat treatment without transferring. The electric heating belt will not rotate with the tank to ensure heat evenly, and the equipment connected with the electric heating belt will not be knotted, which improves the practicability.

A refrigerator includes a vacuum adiabatic body including a conductive resistance sheet providing a vacuum space that has a temperature between a temperature of an internal space and a temperature of an external space and is in a vacuum state, the conductive resistance sheet capable of resisting heat conduction between a first plate and a second plate, wherein at least one of the conductive resistance sheet and each of the first and second plates are welded to each other to create a welding part, wherein a plurality of regular beads are provided to a surface of the welding part, and wherein the plurality of regular beads includes: a parabolic inflection region provided at a center portion; linear regions respectively provided at both outsides of the inflection region; and edge regions respectively provided at outsides of the linear regions.

The present invention relates to metalworking, in particular to producing vessels from non-heat-treatable aluminium alloys used for tanks and pressure vessels. Disclosed is a method of manufacturing a vessel, the method including: forming a tube by rolling at least one flat blank and abutting the edges thereof, friction stir welding the abutted edges and working at least a part of the welded tube into a shape of the vessel, wherein the flat blank is a sheet of a non-heat-treatable aluminium alloy preliminarily subjected to cold working with permanent deformation within the range of 0.5-15%, and said working of at least one part of the welded tube is hot working at a temperature of 230-520° C. The technical effect is a reduction in vessel weight, an increase in vessel strength, a uniform vessel strength and a reduction in the number of hot working cycles during manufacturing of the vessel. Further, the method provides reduced metal and time consumption in manufacturing a vessel from a non-heat-treatable aluminium alloy, low payload ratio, increased reliability and longer service life of the vessel produced using the method.

Methods and systems for forming vacuum insulated containers, such as beverage and food containers, are described. The methods and systems include using a laser to close openings in walls of the container while the container is held at vacuum conditions. The closing of the opening forms the vacuum space within the walls of the container.