27results about "Evacuating shielding" patented technology

The invention provides surfacing integrated equipment for a hydrogenation reactor shell ring, and relates to the technical field of surfacing, the surfacing integrated equipment comprises a telescopic part, a welding part is arranged at the action end of the telescopic part, and the action end of the telescopic part is used for enabling the welding part to move in the axial direction of the shell ring; the welding part comprises a feeding assembly, a feeding head and a recycling assembly, the feeding assembly conveys a welding strip and unused welding flux to the surface of the shell ring through the feeding head, the used welding flux on the surface of the shell ring is recycled through the suction end of the recycling assembly, and the used welding flux is conveyed to the feeding head through the discharging end of the recycling assembly; the adjusting assembly in the feeding head can adjust the proportion of the unused welding flux to the used welding flux in the feeding head, the used welding flux with the high temperature is quantitatively provided for the surface of the shell ring while the welding flux is saved, heat loss of a molten pool is slowed down, and thermal stress caused by the too high cooling speed of the molten pool is avoided.

A processing head assembly is disclosed. In some examples, the processing head assembly comprises a fabrication energy source; a wire feedstock surrounded by a shield and one or more filler feedstocks surrounded by one or more nozzles. In some examples, the fabrication energy source includes the wire feedstock surrounded by the shield. A method of depositing material on a substrate using a processing head assembly for use with a fabrication energy source; a wire feedstock surrounded by a shield and one or more filler feedstocks surrounded by one or more nozzles is disclosed. In some examples, the method comprises projecting a fabrication energy beam from the fabrication energy source onto the substrate at a spot, projecting the wire feedstock surrounded by the shield onto the substrate at the spot and projecting the one or more filler feedstocks surrounded by the one or more nozzles onto the substrate close to the spot.

The invention relates to a welding torch (10) comprising: - an electrode (11) which extends along a longitudinal axis (X) and is intended to form an electric arc with a part to be welded, the electrode comprising an internal duct (16) which opens at a free end, the internal duct being configured to circulate and then eject a protective gas, referred to as internal gas, via the free end; - a nozzle (12) which is arranged, preferably coaxially, around the electrode, the nozzle being configured to eject a protective gas, referred to as external gas, from the nozzle to the free end of the internal duct of the electrode; - flow adjustment means for ejecting an internal gas flow (Fint) having a composition and / or flow rate and / or pressure independent of that / those of the external gas ejection flow (Fext).

The invention discloses a submerged arc welding agent laying device for a transverse thick plate groove and a thick plate welding method, and relates to the technical field of transverse thick plate welding. The device comprises a welding flux discharging box which is located on one side of a transverse thick plate welding seam and provided with a first discharging opening and a second discharging opening which are used for discharging welding flux; the moving mechanism is used for driving the welding flux discharging box to move equidistantly in the welding seam direction; the welding mechanism is connected to the moving mechanism and used for executing the welding step after the groove is filled with the welding flux; and the controller is electrically connected to the moving mechanism and the welding mechanism. And in the first direction, perpendicular to the welding seam, of the transverse thick plate from the inside to the outside of the groove, the first discharging opening conducts discharging to form a first stacking area, the second discharging opening conducts discharging to form a second stacking area, and forming of the first stacking area lags behind the second stacking area. According to the method, automation, precision and high adaptability of the whole process of transverse thick plate groove submerged arc welding from welding flux laying to welding can be achieved, and the welding quality, efficiency and safety are remarkably improved.

The present application provides an additive manufacturing system. The additive manufacturing system includes: a plurality of conveying pipes, each of which is connected to a material source; a mixer, the plurality of conveying pipes being connected to the mixer, the mixer being configured to mix the powder materials supplied via the plurality of conveying pipes in real time during additive manufacturing; and a nozzle, the mixer being connected to the nozzle via a supply pipe, the nozzle being configured to transport the mixed mixed material to a substrate for additive manufacturing, wherein each of the plurality of conveying pipes is configured to be able to change the conveying amount or conveying speed of the powder material in real time. The present application also provides an additive manufacturing method for the above-mentioned additive manufacturing system. The above-mentioned additive manufacturing system and additive manufacturing method are capable of adjusting the material composition or its proportion in real time to meet the different performance requirements of different parts of the product.

Powder feed nozzle (100) for a welding device, with a base body (110) which has a main section (111) and an outlet section (112) adjacent to the main section (111), wherein the outlet section (112) has an outlet opening (113), with at least one coolant supply line (115A, 115B, 115C) extending axially along the main section (111) and with at least one coolant discharge line (116A, 116B, 116C) extending axially along the main section (111), wherein the at least one coolant supply line (115A, 115B, 115C) and the at least one coolant discharge line (116A, 116B, 116C) are connected via at least two coolant connecting lines (117A, 117B, 117C) extending radially at least partially around the outlet section (112), characterized in that at least two coolant pairs (114A, 114B, 114C) are each provided with a coolant supply line (115A, 115B, 115C), a coolant discharge line (116A, 116B, 116C) and at least two coolant connecting lines (117A, 117B, 117C), wherein the coolant connecting lines (117A, 117B, 117C) of the individual coolant pairs (114A, 114B, 114C) are arranged parallel to each other in a row along at least one part of the length of the exit section (112).

Shielding gas supply nozzle for welding torch. The invention relates to a welding torch (10), comprising: - an electrode (11) extending along a longitudinal axis (X) and intended to form an electric arc with a workpiece to be welded, - a nozzle (12) arranged around the electrode, preferably coaxially, being longitudinally set back from the electrode, the nozzle being configured to eject a shielding gas, called external gas, flowing out of the nozzle while being attached along the external surface of the electrode up to the free end of the electrode projecting from the nozzle. Figure for abstract: fig.5

A welding torch includes a contact tip and a wire electrode guide extending distal of the contact tip. The wire electrode guide includes a metallic outer sheath and a plurality of ring-shaped electrical insulators stacked axially within the metallic outer sheath so as to form a central wire electrode receiving bore through the plurality of ring-shaped electrical insulators.

The invention relates to a welding torch (10), comprising: - an electrode (11) extending along a longitudinal axis (X) and intended to form an electric arc with a part to be welded; - a convergent nozzle (12) arranged around the electrode, preferably coaxially, set back longitudinally with respect to the electrode, the convergent nozzle being configured to eject a protective gas, referred to as external gas, flowing out of the convergent nozzle while being attached along the outer surface of the electrode until the free end of the electrode protruding from the convergent nozzle.

A system (100), a method, an object support assembly (300) and a flux holding device (400) are disclosed. The system (100) comprises a welding head (122) for providing layers of material to additively manufacture the object (200) at a substrate (21), a flux holding device (400) for holding flux at the welding head (122), an object support assembly (300) having a support plate (320) provided with a plurality of ceramic panels (341-344) arranged adjacent to each other and arranged to form an outward surface (348) formed according to at least a portion of a shape of the object (200) to be manufactured. The method comprises providing (B110) a respective layer (221-225) of the object (200) using the welding head (122) by conveying (B120) the welding head (122) and the flux holding device (400) along the support plate (320) to apply the respective layer (221-225), and adjusting (B130) a distance (D) between a welding head (122) and the support (130) based on a layer thickness of the respective layer (221-225) of the object (200).

A suction apparatus (1) is provided with: a first path connecting an inlet (3) and a drive opening (11) of an ejector (10); a second path connecting a suction / ejection opening (5) and an intake opening (13) of the ejector (10); and a third path connecting the inlet (3) and the suction / ejection opening (5). When the second path is connected by a path switching unit (7), a gas or an aerosol is suctioned via the suction / ejection opening (5) by means of the first path and the second path. When the third path is connected by the path switching unit (7), a compressed gas is ejected via the suction / ejection opening (5) by means of the third path.

A system (100), a method and an object template panel (150) are disclosed. The method comprises performing (A110) submerged arc welding to provide a respective layer (221-225) of an object (200) by means of a welding head (122), while moving the welding head (122) and the object template panel (150) relatively each other as constrained by a slot (152) of the object template panel (150), wherein the object template panel (150) is located to match, at least in height, a preceding layer (221-225) of the object (200), wherein the preceding layer (221-225) is preceding to the respective layer (221-225), whereby at least some flux is prevented from escaping through the slot (152), and vertically adjusting (A120) a distance (D) between the object template panel (150) and the support (130) based on a layer thickness of the respective layer (221-225) of the object (200), thereby locating the object template panel (150) to match, at least in height, the respective layer (221-225), whereby at least some flux is prevented from escaping through the slot (152).

A welding torch includes a contact tip and a wire electrode guide extending distally of the contact tip. The wire electrode guide includes a metal outer sheath and a plurality of annular electrical insulators axially stacked within the metal outer sheath so as to form a central wire electrode receiving aperture through the plurality of annular electrical insulators.

Device for transporting recycled solder flux for the purpose of preventing moisture re-entry, according to the mechanical design of patent FR 1501661, characterized in that: - an air heater (a) placed upstream of the transfer box, heater equipped with a servo (b) and a temperature probe (c) at the inlet of the flux distribution box, - a second sub-assembly provided with insulation (g) and a heating cord (h) over the entire length of the piping between the flux distribution box and the head hopper (e), a temperature probe (d) at the inlet of the head hopper (e), and a servo (f) controlled by the temperature probe (d), - a third sub-assembly consisting of a motorized fresh air intake valve (k) at the inlet of the filter (j) associated with a servo (l) controlled by a temperature probe (i) at the inlet of the filter (j). Figure for abstract [Fig. 1]

A dust removal assembly (100) and a laser welding device are provided. The dust removal assembly (100) includes: a base (11); a nozzle (12), where the nozzle (12) is disposed on the base (11), the nozzle (12) includes an accommodating chamber (1201) and an air inlet (1202) and an air outlet (1203) in communication with the accommodating chamber (1201), and the nozzle (12) is constructed to introduce compressed air to the accommodating chamber (1201) via the air inlet (1202) and exhaust the compressed air via the air outlet (1203); and an ionizing bar (13), where the ionizing bar (13) is disposed in the accommodating chamber (1201), and the ionizing bar (13) is arranged between the air inlet (1202) and the air outlet (1203).

A welding system includes a power block, a cable, and an end assembly including a holder. The cable is attached between the power block and the holder and is detachable and reversible. Each end of the cable has the same polygonal recess, which match a common polygonal projection of the power block and the holder. The holder may include a coupler that permits rotatable movement of the cable relative to the holder. The coupler can be exchanged with a further coupler having the same polygonal profile and height but with a different rotatable movement. The cable is reversible such that the end attached to the power block can be attached to the holder and vice versa.

To provide systems and methods of additive structural build techniques.SOLUTION: Embodiments of systems and methods of additive manufacturing are disclosed. A metal deposition device (MDD) is configured to deposit a metal material during an additive manufacturing process. A controller is operatively coupled to the MDD and is configured to command the MDD to deposit the metal material on a base to form a contour of a part. The controller is configured to command the MDD to deposit the metal material on the base to form an infill pattern within a region outlined by the contour. The infill pattern has a wave shape with a certain wavelength. The controller is configured to command the metal deposition device to fuse the infill pattern to the metal contour at crossover points, where the infill pattern meets the contour, by applying energy at the crossover points and reducing a deposition rate of the metal material at the crossover points to prevent distortion of the contour.SELECTED DRAWING: Figure 3

The invention discloses oil-gas treatment platform modular deck segmented butt welding equipment, and relates to the technical field of oil-gas treatment platform construction.The oil-gas treatment platform modular deck segmented butt welding equipment comprises a moving seat and a collecting assembly, a guide rail is arranged at the bottom of the moving seat, a submerged arc welding machine is arranged at one end of the top of the moving seat, and a recycling box is arranged on one side of the submerged arc welding machine; a waste box is arranged at the other end of the top of the moving seat, the collecting assembly is arranged between the recycling box and the waste box, and the collecting assembly comprises a double-shaft motor. In the submerged-arc welding process, the double-shaft motor drives the centrifugal fan to work to form a negative pressure recovery system, unmelted welding flux particles are actively recovered, meanwhile, the linkage mechanism can be linked to automatically drive the cutter to cut up remaining long-strip welding slag, the welding slag can be conveniently recovered into a waste box under negative pressure, the manual cleaning link is eliminated through the design, and the working efficiency is improved. And meanwhile, the filter protects and guarantees long-acting operation of the draught fan, and the device is suitable for continuous submerged-arc welding operation.

Shielding gas nozzle for a welding torch. The invention relates to a welding torch (10), comprising: - an electrode (11) extending along a longitudinal axis (X) and intended to form an electric arc with a workpiece, - a nozzle (12) arranged around the electrode, preferably coaxially, and set back longitudinally from the electrode, the nozzle being configured to eject a shielding gas, referred to as the external gas, flowing out of the nozzle, attached along the external surface of the electrode to the free end of the electrode protruding from the nozzle. Figure for the abstract: Fig. 5

The invention relates to a ceramic ring for stud welding and a stud system.The ceramic ring comprises a glass fiber reinforced thermal shrinkage film located on the outer layer and an ardealite-based ceramic layer located on the inner layer, the glass fiber reinforced thermal shrinkage film wraps the outer wall of the ardealite-based ceramic layer, and a thermal pore-foaming agent is added into the ardealite-based ceramic layer; and the inner wall of the ardealite-based ceramic layer is provided with a heat insulation layer and forms a spiral air guide groove. The stud system comprises a ceramic ring and a stud, the stud comprises a stud body and a stud head located at one end of the stud body, a copper foil electric arc guiding layer is formed on the top face of the stud head, an annular micro air cavity is formed in the portion, on the lower portion of the stud head, of the stud body, the annular micro air cavity is filled with smelting flux, and the annular micro air cavity is provided with an opening. And a thermal decomposition sealing film covers the opening. A double-air-curtain dynamic sealing system is constructed through the ceramic rings and the studs, the oxygen concentration of a molten pool area is reduced, the stud welding quality is improved, the ceramic rings are automatically disintegrated into micron-sized powder during welding, cleaning and recycling are not needed, and the construction efficiency is improved.

Arc welding torch with double shielding gas flow. The invention relates to a welding torch (10), comprising: - an electrode (11) extending along a longitudinal axis (X) and being intended to form an electric arc with a workpiece to be welded, the electrode comprising an internal conduit (16) opening out at a free end, the internal conduit being configured to circulate and then eject a shielding gas, called internal gas, through the free end, - a nozzle (12) arranged around the electrode, preferably coaxially, the nozzle being configured to eject a shielding gas, called external gas, out of the nozzle to the free end of the internal conduit of the electrode, - flow adjustment means for ejecting an internal gas flow (Fint) of composition and / or flow rate and / or pressure independent of that(those) of the external gas ejection flow (Fext). Figure for the abstract: fig.5

- Device for drying and preserving powders, such as welding fluxes or other materials - Device for drying and preserving a powder by maintaining it at a temperature within a predetermined temperature range, comprising: ∘ a hot air mixing module, comprising a motor (h) equipped with an air mixing turbine (i) surrounded by a heating resistance (j), for extracting moisture from the powder via a hot air circuit which transports the hot air through the volume of the device and a powder circuit receiving the powder, said circuits being separate and adjacent to ensure heat exchange without contact between the hot air and the powder;o an enclosure (a) delimiting a volume of a curing chamber (a') of the device, a silo (b) fixed in the chamber so that the air (c) in said chamber can circulate in the volume of the silo, the silo comprising: a funnel-shaped base (d), a drain valve (f), the silo being traversed by spaced tubes (l) placed parallel to each other over the entire volume of the silo along an axis of the turbine, and o a servo control system (k) to maintain the temperature inside the chamber and to control the curing and preservation phases. - Curing and preservation device for powders;

Process for forming an oxide-hardened alloy, which includes the following: Applying a melting energy (24) to a metal alloy material (23) to create a melt pool (26), wherein the melting energy (24) alternates between a first energy level and a second energy level, the second energy level being less than 50% of the first energy level, and Injecting (33) a metal oxide (34) into the melt bath (26), wherein the metal oxide (34) comprises particles with a higher melting point than the metal alloy material (23), and wherein the injection (33) only takes place when the melting energy has the second energy level; where at least most of the metal oxide (34) is not directly captured by the melting energy at the first energy level and wherein the solidification of the molten bath (26) forms a deposit of the metal alloy material with the metal oxide (34) distributed therein.

The welding torch includes a contact tip and a wire electrode guide extending distally from the contact tip, the wire electrode guide including a metallic outer sheath and a plurality of ring-shaped electrical insulators axially stacked within the metallic outer sheath to form a central wire electrode-receiving bore through which the plurality of ring-shaped electrical insulators extend.

Dual-flow shielding gas arc welding torch. The invention relates to a welding torch (10), comprising: - an electrode (11) extending along a longitudinal axis (X) and intended to form an electric arc with a workpiece, the electrode comprising an internal conduit (16) opening through a free end, the internal conduit being configured to circulate and then eject a shielding gas, called internal gas, through the free end, - a nozzle (12) arranged around the electrode, preferably coaxially, the nozzle being configured to eject a shielding gas, called external gas, from the nozzle to the free end of the internal conduit of the electrode, - flow control means for ejecting an internal gas flow (Fint) of composition and / or flow rate and / or pressure independent of that(s) of the external gas ejection flow (Fext). Figure for the abridged version: fig. 5

A kind of oil supply pipe assembly with cooling function for aero-engine preparation method, the oil supply pipe assembly with cooling function is double-layer structure pipe, the overall length of assembly 470mm, inner layer pipe is circular pipe oil pipe, outer layer pipe is oval tube, inner and outer layer are fixed in a joint, the clamping cavity formed by outer layer pipe and inner layer pipe is air passage, inner layer pipe is oil passage, there is hollow retainer in the clamping cavity of inner layer pipe and outer layer pipe, all the parts involved in the whole assembly are high-temperature alloy (GH141) material;Air passage in assembly is three-section structure, joint, conversion sheet and air pipe, conversion sheet is the vertical fixed sheet of inner and outer layer pipe fixed at joint, three are required to be connected by manual argon arc welding way gradually, weld requirement is II weld, according to HB / Z164-1990 is executed, according to HB5456-1990 is accepted;Air pipe is oval tube with long axis 25mm×short axis 14mm, wall thickness is 1mm, length is 350mm.

The invention discloses a device and a method for wire electric arc additive manufacturing of an aluminum alloy porous material, and belongs to the field of wire electric arc additive manufacturing. According to the method, the synergistic effect of multiple mechanisms of wire-electric arc melting, composite powder adding, ultrasonic vibration stirring, gas-solid mixed CO2 forced cooling and special atmosphere mixed shielding gas is adopted, the fundamental breakthrough of the WAAM technology from'impossible pore forming 'to'stable pore forming' is achieved for the first time, finally obtained pores are more uniform in size and more dispersed in spatial distribution, and the pore forming efficiency is improved. And the formation of a macrosegregation zone and local large holes is effectively avoided, and the consistency and reliability of the mechanical property of the porous component are greatly improved. According to the method, the technological process is high in integration level, complex post-treatment procedures are not needed, and integrated forming of the functional component composed of the compact shell and the internal porous structure can be achieved.