50results about "Welding electrode features" patented technology

The utility model discloses a novel gas shielded welding protective nozzle, which is provided with a through hole for accommodating a conductive nozzle, the left end of the through hole is provided with an internal thread, and a plurality of spiral gas guide grooves are provided on the inner wall of the middle part of the through hole; the right end of the through hole is provided with a gas collecting groove, and a convex structure is provided in the gas collecting groove. The utility model realizes that the ejected airflow is spiral-shaped by arranging a spiral gas guide groove in the through hole of the protective nozzle body, and then passes through the gas collecting groove at the bottom of the protective nozzle to increase pressure and speed and then spray downward, so that the welding point can be separated from the air with a small amount of protective gas, which greatly saves protective gas and reduces welding slag splashing. A shielding gas exhaust hole is also provided at the bottom of the protective nozzle to reduce slag sticking to the bottom of the protective nozzle.

The invention provides a positive and negative pressure pulse electric arc welding and additive manufacturing method which comprises the following steps: inducing electric arc plasma to generate a negative pressure electric arc with an anti-gravity adsorption effect through a current-magnetic field-hollow tungsten electrode-gas collaborative design, and forming a time sequence coupling process with a positive pressure electric arc. The core of the method is that a magnetic control positive pressure and negative pressure electric arc welding external field is cooperated with a molten pool reconstruction forming mechanism, that is, the dynamic and thermodynamic states of a molten pool are accurately balanced by dynamically switching the electric arc pressure direction and regulating and controlling the action proportion and alternating frequency of negative pressure and positive pressure electric arcs. A self-adaptive magnetic field threshold model based on current intensity and a gas mode is combined with variable polarity power supply parameters and gas flow rate cooperative control, and the problems of thin plate welding fusion penetration and thin-wall additive molten pool instability are effectively solved. According to the method, a welding wire, powder or laser composite manufacturing mode can be integrated, the forming precision and performance of a complex structure are remarkably improved, and an innovative technical support is provided for high-quality and high-efficiency welding and additive manufacturing.

The invention discloses an electric arc discharge device which comprises a base, a lead screw nut mechanism, a first electrode assembly and a second electrode assembly. The first electrode assembly and the second electrode assembly are arranged at intervals and slidably connected with the base. The driving end of the lead screw nut mechanism is connected with the second electrode assembly. A second electrode body is arranged at the tail end of the second electrode assembly; the first electrode assembly comprises a rotating platform, a lifting platform, a micro telescopic push rod and a first electrode body which are connected in sequence; the Y-direction distance between the first electrode body and the second electrode body is roughly adjusted through the lead screw nut mechanism, the angle and height of the second electrode body are adjusted through the rotating platform and the lifting platform correspondingly, and the Y-direction distance is finely adjusted through the micro telescopic push rod. The device has the beneficial effects that the efficiency, precision and reliability of the device are obviously superior to those of a single adjusting mode, more arc form requirements are met, and the problem that the two electrodes are not centered due to machining and device errors can be solved.

The invention provides an electrode convenient to replace and a welding device, and belongs to the technical field of welding devices. The electrode convenient to replace comprises an electrode tip and an electrode holder, a clamping piece is arranged on the electrode holder, and a first clamping groove is formed in the clamping piece; a clamping block is arranged on the electrode tip, and the clamping block is clamped with the first clamping groove. The electrode convenient to replace is novel in design, the electrode tip and the electrode holder can be quickly connected, so that the replacement time of the electrode tip is saved, and the welding efficiency is improved.

The composite material electric arc additive manufacturing device comprises a composite material manufacturing six-axis mechanical arm, a composite material manufacturing six-axis mechanical arm control cabinet, a wire feeder, a wire feeding pipe mounting frame, an adjustable rocker arm transverse reciprocating wire distribution mechanism, a welding gun, a deposition piece, a wire feeding pipe and a composite material electric arc additive manufacturing power source. The transverse reciprocating wire distributing mechanism with the adjustable rocker arm comprises a wire distributing pitching angle adjusting structure, a wire distributing swing adjusting structure, a wire distributing tensioning structure, a wire distributing clamping structure and reinforced fiber wires. The swing amplitude and the swing frequency of the fiber distribution swing adjusting structure are adjusted, so that on-demand or uniform arrangement of the reinforced fibers is achieved, and the material performance of the deposition piece is improved.

The invention relates to a component for an electrically operated arc torch, in particular a plasma burner or plasma cutting torch, characterised in that the component or at least a part or a region of the component consists of a material comprising aluminium oxide and at least one of the chemical elements silver and copper.

The present invention provides a tungsten needle online grinding device, a welding system and a use method. The tungsten needle online grinding device comprises a welding gun, a tungsten needle arranged in the welding gun, a needle clamping mechanism for assisting the welding gun in adjusting the extension length of the tungsten needle, and a grinding mechanism for the tungsten needle. The grinding mechanism is driven by a reciprocating mechanism to reciprocate and grind the tungsten needle, and a surface contact grinding system is formed between the grinding end and the tungsten needle. The welding system comprises the tungsten needle online grinding device, a welding robot connected to the welding gun in the tungsten needle online grinding device, an electrical control cabinet for controlling the entire system, and a grinding support table integrating the needle clamping mechanism, a clamping mechanism, a grinding mechanism and a reciprocating mechanism in the tungsten needle online grinding device. The present invention adopts the device, which can not only grind the tungsten needle in the welding gun online without disassembling it, but also enable the entire grinding surface in the grinding mechanism to be ground during the grinding process, thereby ensuring the grinding quality of the tungsten needle.

The utility model relates to the technical field of arc welding machines, and discloses a welding head angle adjustable arc welding machine which comprises a rack, a supporting seat is fixedly mounted at the upper end of the rack, an arc welding machine body is fixedly connected to the top of the supporting seat, a connecting wire is connected to the front surface of the arc welding machine body, and the welding head is connected to the other end of the connecting wire. The upper end of the welding head is fixedly connected with a connecting block; the worm in the groove can be driven to rotate through the hand wheel, and under the meshing effect, the worm rotates to synchronously drive the brake worm gear to rotate, so that the angle of the welding head on the inner side of the concave seat is changed accordingly, an operator can easily change the angle of the welding head according to specific requirements so as to adapt to different welding tasks, and the welding efficiency is improved. And the structure has a self-locking property, so that the welding head can be prevented from accidentally moving or changing in the working process, and a more stable and reliable welding effect is provided.

The invention relates to a component for an arc burner operating in an energized manner, in particular for a plasma burner or a plasma cutting burner, characterized in that the component or at least part or at least one region of the component is made of a material, the material comprises aluminum oxide and at least one of chemical elements silver and copper.

This invention provides a weldable, lightweight, long-life arc-initiating electrode and welding method, including an anode head, a cathode head, an anode column, and a cathode column. The anode head and cathode head are made of single or composite metal conductor materials resistant to arc erosion; the anode column and cathode column are also made of single or composite metal conductor materials. The current path is as follows: the arc igniter is connected to both ends of the track in the muzzle region of a high-speed electromagnetic propulsion device, powered by an external power source. Current flows through the track and armature path of the high-speed electromagnetic propulsion device. The armature, under electromagnetic force, accelerates and slides from the muzzle towards the muzzle. When the armature exits the muzzle, it disengages from the track. Simultaneously, the metal or plasma medium in the gap between the bypass electrodes of the arc igniter induces gap breakdown discharge, achieving arc initiation. This invention meets requirements for conductivity and high tensile strength.

Strip flash butt welding machine (1) for welding end faces (7, 15) of strip ends (3, 11) of at least one strip with a) first tensioning elements (5) for tensioning a first band end (3) and second tensioning elements (12) for tensioning a second band end (11), b) a first alignment element (4) for aligning the first strip end (3) and a second alignment element (10) for aligning the second strip end (11), c) wherein the second clamping elements (12) are movable relative to the first clamping elements (5) in the direction of a longitudinal axis (9) via a drive, d) the first clamping elements (5) and the second clamping elements (12) each comprise a strip flash butt welding machine electrode (6, 13) which is formed at least in two parts and comprises a base body (57) and a contact body (58), characterized in that e) the first alignment element (4) and the second alignment element (10) are coupled to one another via a coupling device which specifies a relative alignment of the first and second alignment elements (4, 10), f) the second clamping elements (12) are movable translationally in the direction of the longitudinal axis (9) relative to the two alignment elements (4, 10) by means of the drive and g) the coupling device is a mechanical coupling device (54) which firmly connects the first alignment element (4) and the second alignment element (10) during a conversion.

A blankholder (12) for a welding apparatus comprises an upper gripping element (14) and a lower gripping element (16) having longitudinal development along one direction (X). The upper gripping element (14) is movable between a closed position, wherein a panel (18, 20) is clamped between said upper gripping element (14) and said lower gripping element (16), and an open position, wherein the panel (18, 20) may slide between said upper gripping element (14) and said lower gripping element (16). The lower gripping element (16) comprises a lower operating surface (22) facing the upper gripping element (14). The lower gripping element (16) comprises a plurality of movable plates (24) arranged along the direction (X). The movable plates (24) are adapted to be moved by handling means (25) in a direction substantially perpendicular to the lower operating surface (22), between a first position, wherein they do not protrude or protrude by a minimum height relative to the operating surface (24), and a second position, wherein they protrude with respect to the operating surface (24) by a predetermined maximum height. The movable plates (24) are provided with a gripping surface (26).

The utility model discloses a disassembly-free welding gun calibrator for a welding robot. Comprising a gun corrector base plate and a welding gun clamping mechanism arranged on the gun corrector base plate, a welding gun correcting mechanism is installed on the gun corrector base plate, and the welding gun correcting mechanism comprises a bottom supporting assembly, a rotary pressing assembly and side pressing assemblies symmetrically arranged on the two sides of the bottom supporting assembly; the bottom supporting assembly comprises a lower support and a lower execution element, the lower execution element is provided with a supporting plate, the side pressing assembly comprises a side support and a side pressing execution element, and the side pressing execution element is horizontally arranged; the rotary pressing assembly comprises a rotary execution element, a rotary support and an upper execution element, when the gun is calibrated, the upper execution element is located above the supporting plate, and the upper execution element, the two side pressure execution elements and the lower execution element are in a cross shape. According to the welding gun calibration device, the production recovery cost after the arc welding robot collides with the gun is greatly reduced, the gun calibration efficiency is improved, the dependence on professional technicians is reduced, the welding gun calibration precision is greatly improved, the structure is simple, and the cost is low.

The invention discloses a trolley walking device suitable for automatic submerged-arc welding of a special-shaped steel box girder. The trolley walking device solves the technical problem that in the prior art, when a non-linear welding seam of the special-shaped steel box girder is welded, time and labor are wasted due to manual welding. Comprising two clamping mechanisms installed at the front end and the rear end of a welding trolley respectively, and each clamping mechanism comprises angle steel installed at the front end or the rear end of the welding trolley and positioning screws detachably installed at the two ends of the angle steel and in sliding contact with the two sides of a top plate of the special-shaped steel box girder; corner posts are arranged at the bottoms of the positioning screws. The automatic welding device is simple in structure, scientific and reasonable in design, convenient to use, capable of effectively achieving automatic welding of the special-shaped steel box girder on the premise that safe welding is guaranteed, easy to assemble and disassemble and capable of guaranteeing efficiency and effectively reducing labor cost.

The invention discloses a welding electrode for high-current argon tungsten-arc welding and a preparation method of the welding electrode, and belongs to the technical field of welding materials. The welding electrode comprises a columnar base body and a discharging end face. The columnar base body is formed by welding a tungsten rod and a copper rod through electric arc welding; the discharge end face is located at the end of the tungsten rod, and 2-4 regularly-distributed convex points are arranged on the surface of the discharge end face and serve as arc discharge points. The preparation method comprises the steps of material pretreatment, positioning and clamping, nickel powder coating, welding parameter setting, copper-tungsten welding, welding joint cleaning, salient point structure manufacturing, copper electrode heat dissipation channel manufacturing and quality inspection. A copper-tungsten composite structure is adopted, a plurality of discharge protruding points are arranged at the end of the tungsten electrode, the single-point burn-out rate is remarkably reduced by dispersing electric arc heat loads, rapid metallurgical bonding of a copper bar and a tungsten bar is achieved through the electric arc welding technology, the burn-out resistance service life is greatly prolonged, the electric arc stability is greatly improved, and the welding rod is suitable for large-current welding, aluminum alloy beveling welding and the like.

The example methods and apparatus reduce and / or eliminate adverse effects of welding work pieces having dissimilar compositions. An example method includes depositing a first weld layer (106) on a first end of a first work piece (102). The first work piece has a first content of a metallic element and the first weld layer has a second content of the metallic element higher than the first content. The example method includes depositing a second weld layer (108) between the first weld layer and a second end of a second work piece (104) to couple the first work piece to the second work piece. The second weld layer has a third content of the metallic element higher than the second content, and the second work piece has a fourth content of the metallic element higher than the first content.

Component for an electrically operated arc torch, in particular a plasma torch or plasma cutting torch, characterized in that the component or at least part or a region of the component consists of a material comprising aluminum oxide and at least one of the chemical elements silver and copper.

According to the parallel seam welding electrode disclosed by the invention, a roller is fixed at the bottom of a vertical section, and a locking hole is formed in a horizontal section, so that the adaptive breakthrough of a lead upward packaging structure is realized. The right-angle design of the vertical section and the horizontal section enables the working position of the roller to deviate in the vertical direction relative to a traditional plane electrode, a shell lead protruding area can be accurately avoided, and effective contact between the roller and the welding face of a cover plate is ensured. Therefore, the core problem that a traditional parallel seam welding electrode cannot complete airtight packaging due to the interference of the height of an outer lead is solved. The integral rigidity of the electrode structure is enhanced through the integral forming process, the deformation risk is reduced under the working conditions of welding pressure and high-speed rotation, and the stability of a welding path is guaranteed; meanwhile, due to the modular interface design of the horizontal section locking hole and the equipment clamp, the electrode installation precision and maintainability are improved, and a reliable technology implementation path is provided for a complex packaging scene.

A boiler tube stud welding gun includes a welding gun mounting plate, a welding gun unit mounted on the welding gun mounting plate, and two adaptive side support legs located on either side of the welding gun unit and indirectly connected to the welding gun mounting plate. The adaptive side support legs include a mounting bar, a support block located below the mounting bar, a connecting column connected to the top of the support block and passing through the mounting bar, a sliding bearing located within the mounting bar and slidably connected to the connecting column, a spherical bearing located outside the sliding bearing, a snap-on stud connected to the top of the connecting column, and a spring sleeved outside the connecting column with its ends abutting the mounting bar and the support block, respectively. This ensures that the welding gun is in a normal position relative to the arc surface, ensures that the resistance on both sides of the welding gun is consistent, avoids structural arc deflection, and improves welding quality.

The utility model discloses a double-wire outlet nozzle structure, which relates to the technical field of wire outlet nozzle structures, and comprises a shell, a wire feeding groove is formed in the shell, a blanking cap is mounted on one side of the shell, a limiting groove is formed in the shell, a frame is mounted in the limiting groove, a sponge wiper is mounted on the inner side of the frame, and the sponge wiper is mounted on the outer side of the shell. The welding wire feeding device comprises a shell, a plug cover is arranged in the shell, two mounting grooves are formed in one side of the plug cover, two mounting plates are fixedly mounted on one side of the shell, and the mounting plates are matched with the mounting grooves. The welding wire feeding device has the beneficial effects that a sponge wiper is mounted in the shell, so that the surface of a welding wire can be wiped through the sponge wiper when the welding wire enters a wire feeding groove; according to the welding wire dust removal device, dust on the surface of a welding wire can be effectively removed, the follow-up welding effect of the welding wire dust removal device is improved, through cooperation of a blanking cap, a limiting groove and a frame, the frame can be conveniently detached from the shell, dust wiped down from the sponge wiper can be conveniently cleaned, and detaching and cleaning are convenient and fast.

The invention provides a welding type light-weight long-service-life arc striking electrode and a welding method. The welding type light-weight long-service-life arc striking electrode comprises an anode head, a cathode head, an anode column and a cathode column. The anode head and the cathode head are made of single or composite metal conductor materials resistant to arc ablation; and the anode column and the cathode column are made of single or composite metal conductor materials. According to a current path, the arc starter is connected to the two ends of a rail in a bore opening area of the high-speed electromagnetic propulsion device and powered by an external power source, current conducts the rail and an armature path of the high-speed electromagnetic propulsion device, and an armature slides in a bore in an accelerated mode from a bore tail to a bore opening under the action of electromagnetic force; meanwhile, the metal or plasma medium in the bypass electrode gap of the arc striking device induces the gap to disrupt and discharge, and the arc striking effect is achieved. The cable can meet the requirements of conductivity, high tensile strength and the like.

The utility model relates to the technical field of screw processing, and discloses an electrode group for keeping a welding screw in the middle, which comprises a middle pipe, a connecting upper pipe fixed with the middle pipe and a connecting lower pipe fixed with the middle pipe, and the connecting lower pipe is trumpet-shaped. The middle pipe is in a hollow shape, and the length of the middle pipe is 23 mm. And the degree of finish of the upper connecting pipe is 1.6 microns. The electrode group with the welding screw kept in the center can ensure that the lower electrode hole and the part hole are centrally processed, so that the situation that the screw is not located in the center of the part hole and a battery shell is difficult to install is avoided, and the processing efficiency of equipment can be effectively improved.

The invention provides a start-stop production process for argon arc welding of an ultra-long stainless steel pipe, and belongs to the technical field of welding methods of the ultra-long stainless steel pipe. According to the method, the polishing angle of the tungsten needle is changed from original 30 degrees to 18 degrees, the problem of base metal adhesion during arc striking is solved, the qualification rate during starting and stopping is improved, meanwhile, the loss of the tungsten electrode is reduced, and the starting and stopping frequency is prolonged from original 3 hours once to 6 hours once. According to the method, by setting specific welding parameters such as the starting climbing current and the climbing speed, adopting the slow rising current and setting the reversing distance, soft starting is achieved, the current is slowly increased from low to high during starting of the vehicle, metal of an arc starting point can be fully and stably melted, and therefore a smooth and defect-free welding starting point is obtained and perfectly fused with a follow-up welding bead.

The invention discloses an electrolytic arc combined machining tool with multi-gear continuously adjustable discharge energy. The electrolytic arc combined machining tool comprises a liquid inlet guide sleeve, a spring, a guide rod, an insulation sleeve, a graphite pipe, an electrode handle and an electrode tip. The lower end of the guide rod extends into the graphite pipe, and electrolyte flowing in a gap between the guide rod and the graphite pipe forms an annular resistor. The resistance value of the electrolyte resistor is changed by adjusting the length of the guide rod in the graphite pipe, so that the arc discharge peak current is controlled, and different machining requirements such as high-surface-quality or high-efficiency material removal are met. The electrolyte serves as a current-limiting resistor, multi-gear continuous adjustment of discharge peak current is achieved, an existing electrolyte circulating system is used for heat dissipation, a special cooling device does not need to be additionally arranged, switching of different machining requirements can be rapidly responded, and the equipment cost is effectively reduced while the technology applicability is improved.

Provide a processing method for a titanium anode plate used in an electrolytic copper foil raw foil machine. By optimizing the structure of the welding end of the conductive stud, adopting a structure with a copper rod and a silver sheet at the welding end, the electrical conductivity of the conductive stud itself is improved. And a welding fixture composed of an arc-shaped positioning fixture, a welding positioning fixture and a vertical plate provides an inert gas protection structure while reliably positioning the titanium anode plate and the conductive stud, solving the problem of poor electrical conductivity at the contact position between the conductive stud and the titanium anode plate due to welding defects. While ensuring the reliability of the welding position of the titanium anode plate and the conductive stud, the welding quality is improved, avoiding the defect that the inner arc surface of the welding bulges and deforms due to the titanium anode plate absorbing hydrogen and oxygen, and improving the quality of the titanium anode plate and the electrical conductivity reliability of the conductive stud.

The invention provides a rotating wheel type automatic tungsten needle replacing device which comprises an installation base, a rotating wheel type tungsten needle storage structure, a rotating wheel positioning structure, a rotating wheel stirring structure and a tungsten needle pushing structure are installed on the installation base, and the rotating wheel type tungsten needle storage structure comprises a storage box. The storage box is rotationally mounted on the mounting base, a plurality of storage holes for storing tungsten needles are formed in the storage box, and a plurality of positioning holes are annularly formed in the outer wall of the storage box; the rotating wheel positioning structure comprises a positioning telescopic driving part, and a positioning insertion rod is arranged at the telescopic end; the rotating wheel shifting structure is used for driving the storage box to rotate; the tungsten needle pushing structure comprises a pushing telescopic driving part and a guide push rod, the guide push rod is installed at the telescopic end of the pushing telescopic driving part, and the guide push rod penetrates through the installation base and the storage hole under the action of the pushing telescopic driving part. The device can achieve the functions of automatic conveying, replacing, positioning and the like of the tungsten electrode, manual operation is not needed, the overall structure is simple, operation is easy and convenient, and the occupied space is small.

A multielectrode system, comprising a plurality of electrodes arranged around a workpiece region, is provided, wherein each electrode is configured to generate a heated arc with at least one adjacent electrode, a circuit is configured to power and / or ground each electrode, and a microcontroller is configured to control each of the plurality of electrodes via the circuit. The microcontroller is configured to cause the plurality of electrodes to operate in a uniform heated field mode that provides a substantially uniform heated field around in the workpiece region and to cause at least some of the electrodes to operate in an individual arc control mode that provides an arc between two adjacent electrodes, but not between all electrodes in the plurality of electrodes. Methods of processing an optical fiber via a multielectrode system are further provided.

The invention discloses a method for manufacturing an amorphous alloy thick plate. The method comprises the following steps: manufacturing at least two amorphous alloy plates; placing the two amorphous alloy plates in a vacuum cavity, and respectively fixing the two amorphous alloy plates on a positive electrode and a negative electrode in the vacuum cavity; the vacuum cavity is vacuumized and then is filled with inert gas; applying voltage to the positive electrode and the negative electrode; the distance between the positive electrode and the negative electrode is adjusted, so that uniform electric arcs are generated between the surfaces of the positive electrode and the negative electrode; the voltage is increased and kept for a certain time, so that the surface of the amorphous alloy plate is molten into a liquid state; and the voltage between the positive electrode and the negative electrode is cut off, and the amorphous alloy plates on the positive electrode and the negative electrode are close to each other and combined. According to the method, the amorphous alloy thick plate with poor amorphous forming ability can be manufactured. In addition, the invention further discloses amorphous alloy thick plate manufacturing equipment.

The present invention discloses a vertical machining center for electric composite machining, including: a base, a saddle, a column, a spindle box, a spindle and a conductive worktable, in which an electric machining tool or a metal cutting tool with a standard shank structure can be installed, and an electro-hydraulic interaction unit is also included; the electro-hydraulic interaction unit includes a driving device and a transmission device arranged on the spindle box, a support plate arranged on the transmission device and driven by the driving device to move up and down along the Z-axis direction, and a first electric connector and a working fluid ring spray connector arranged on the support plate, wherein the first electric connector is connected to a cathode power supply, and the working fluid ring spray connector is connected to a working fluid external flushing device. Since the machining center disclosed in the present invention is provided with an electro-hydraulic interaction unit, by providing the electro-hydraulic interaction unit, it is possible to respectively install an electric machining tool and a metal cutting tool on the same spindle box, thereby realizing short arc machining and metal cutting machining of a workpiece, thereby improving machining efficiency and machining accuracy.

An arc additive manufacturing method for a nuclear power water reactor main pipe 316L-In718 functional gradient material relates to the field of additive manufacturing, and aims at solving the problems of poor interlayer bonding capacity of dissimilar metals, uneven component distribution, poor size precision and stress corrosion cracking and the like in the process of preparing materials in the prior art.The nuclear power water reactor main pipe 316L-In718 functional gradient material is prepared by using the coaxial wire feeding arc additive manufacturing method, wherein the welding wire of the coaxial wire feeding is 316L-In718 stranded welding wire.The method can realize the relatively continuous component gradient transition of the 316L-In718 functional gradient material of the large nuclear power water reactor main pipe complex structure, and the effect of improving the deposition efficiency, forming size precision, corrosion resistance and interlayer bonding capacity is achieved.