Accessories (B23K9/32)

Threaded joint for burner system // 2637040
FIELD: machine engineering.SUBSTANCE: joint component comprises a cylindrical body that includes a proximal end and a distal end defining a longitudinal axis. At least two threaded areas are located in a radial position on the surface of the body near the proximal end. Each threaded region includes at least one thread of a screw located on the surface of the casing. In addition, at least two non-threaded areas are oriented longitudinally in the radial position on the surface of the casing.EFFECT: reliability increase.60 cl, 27 dwg

Device for gas protection of welding bath, weld and near-weld area // 2615103
FIELD: metallurgy.SUBSTANCE: device comprises a nozzle for protective gas supplying to the welding zone and a fixture with ribs formed on the side facing the workpiece surface, fixed thereon and provided with bearings for moving over it. Bearings height is chosen for obtaining a shaped gap between the fixture and protected surface. Said fixture ribs are made with at least two side longitudinal channels covered at the front, their profile is shaped for protecting gas vortexlike swirling from a torch nozzle. Fixture has an open front entrance, and a welding torch nozzle is used as a nozzle for protective gas supplying.EFFECT: increased burner nozzle life.7 dwg

Powder feeder for plasma-powder surfacing // 2607679
FIELD: technological processes.SUBSTANCE: invention relates to means of plasma deposition of products with powder filler material, in particular to powder feeders of plasmatrons or similar devices. Powder feeder comprises casing with outlet chamber and dispensing hole, as well as overlapping element of dosing hole, made in form of shutoff needle. Feeder additionally comprises tube-separator with holes in its lower part and drive, connected with shutoff needle, wherein said needle is placed inside tube-separator and has weight, providing closing of dosing hole with shutoff needle, while there is no drive effect on shutoff needle. Drive may be made in form of electromagnet, fixed relative to casing, and is equipped with vibrator.EFFECT: technical result consists in improvement of quality of welding and stabilization of thickness of built-up layer.6 cl, 1 dwg

ethod for prevention of fusion and fixation of tungsten electrode in wig welding, and also welding heads, suitable for it // 2605025
FIELD: metal processing.SUBSTANCE: invention relates to welding head (1) for manual welding by welding arc (3) in inert gas (WIG). Head comprises heat-resistant electrode (2). Electrode (2) is installed with possibility of movement, and can also be driven by means of device (20). Electrode (2) can perform axial rotation or oscillatory movement. During welding, at unintentional contacts between electrode (2) and welded article, undesirable welding is avoided. In case of delivery of additive compound, constantly occurring tacking of liquefied additive with electrode (2) is prevented.EFFECT: connection of movable electrode (2) with voltage source can be carried out by means of either carbon contacts or electro-conductive liquid surrounding electrode (2).14 cl, 7 dwg

System and method of welding with a sensor for determining the parameter, which indicates the diameter of the used welding // 2602702
FIELD: welding.SUBSTANCE: invention relates to welding systems. Device comprises a welding set, welding torch (10) and sensor (31) configured to define the size of a welding electrode used in the welding torch. Welding set is configured to set parameters of the arc ignition and welding parameters basing on sensor (31) signal indicating the size of the welding electrode.EFFECT: use of the invention ensures higher welding quality and increased efficiency.10 cl, 8 dwg

Welding torch inclination angle setting device // 2597847
FIELD: metallurgy.SUBSTANCE: invention relates to electric arc welding and can be used in designs of setters of inclination of welding torch. Setter comprises a body, a gravity-sensitive element in the form of pendulum, rotation angle converter into voltage, made in the form of potentiometer, a variable resistor and circuit of output voltage, reflecting dependence of angle of inclination of welding torch from the position of welding bath on the line of weld, including resistance and stabilizer diode, wherein said pendulum is fixed on the axis of rotation angle converter into voltage. Resistor and stabilizer diode of said circuit are connected in series between the middle point and its engine, wherein one end of the potentiometer directly, and the other end through the above variable resistor is connected to the positive output of the setting device, the midpoint of the potentiometer is connected to negative output setting device, and leads of the stabilizer diode connected to output terminals of setting device.EFFECT: using the invention simplifies the device setting device and its adjustment, higher quality of welded joints.1 cl, 6 dwg

Device for monitoring operation in welding cell of welding system // 2597461
FIELD: technological processes.SUBSTANCE: system comprises controller and connected thereto a sensor for registration of welding associated tasks, such as time spent on grinding welded parts, time spent on sandblasting welded parts, time spent on loading welded parts, time spent on waiting for preliminary or subsequent heating of welded parts, time spent on installation of welded parts. Sensor for registration of welding associated tasks can include a radio-frequency transmitter designed to transmit information indicating a tracked task, and system can also include a corresponding receiver for receiving said information.EFFECT: invention can be used for monitoring welding associated tasks.11 cl, 2 dwg

Welding systems and method of welding with determination of proper attachment and polarity of welding electrode // 2596553
FIELD: machine building.SUBSTANCE: invention relates to welding equipment and can be used for control proper attachment of welding electrode. Welding unit (10) has power source (15) with positive and negative terminals, to generate electric power supply and its supply to a welding electrode. Welding unit (10) also comprises control circuit (30), configured to determine proper attachment of welding electrode with positive and negative contacts of power source (15) by applying a test voltage to contacts of power supply, detecting voltages thereon and comparing detected voltages at contacts of power source.EFFECT: higher efficiency and easy operation of welding unit.17 cl, 5 dwg

ethod and device for control over thermal cycle of butt welding of strip ends // 2574920
FIELD: process engineering.SUBSTANCE: invention relates to welding. Note here that control device (C1) comprises connection means (C15) for its connection with the central ACS (A1) by said strip processing unit and said butt jointing unit (M1) for exchange of at least one strip parameter and of at least one working parameter. Computer C11 can compute at least one thermal parameter of the weld proceeding from said one strip parameter and one working parameter. The weld control and properties control means C14 can control the welding process subject to said thermal parameter.EFFECT: higher weld quality.17 cl, 7 dwg

ethod of fusion welding of steel structures and device for its implementation // 2557041
FIELD: machine building.SUBSTANCE: invention relates to the machine building, and can be used during the fusion welding of the complex steel structures. Under the suggested method the welding is combined with heat treatment with use for this of the heating element in form of the ceramic pad-heated connected via the current switch to the welding power source. Besides, the device contains the electronic and bypass switches, programmable regulator, and thermoelectric converter located on the welded structures.EFFECT: invention reduces power consumption during post-welding heat treatment, increases strength and reliability of the critical welded structures.3 cl, 3 dwg

Device for welding of circular seams // 2556158
FIELD: process engineering.SUBSTANCE: invention relates to welding and can be used for securing of hemispherical structure parts at welding of circular seams. This device comprises reduction gearbox with inclined rotational axis and built-in current feed device with sliding contact and positioning device of hemispherical structure of aluminium alloy arranged to spin at reduction gearbox driven shaft. Reduction gearbox conical gears are engaged via mid teeth pitch diameter with axial squeezing without radial and lateral clearances by means of springs fitted coaxially with rotary pins coaxially with conical gears. Said current feed device with sliding contact is insulated by appropriate sleeves fitted in conical gear hubs, reduction gearbox housing and at drive axle.EFFECT: higher quality of the weld, decreased residual strain internal stress of welded parts.3 cl, 1 dwg

Device for electrodes replacement ensuring improved safety // 2553801
FIELD: machine building.SUBSTANCE: invention relates to the device for electrode replacement in welding device electrode holder. The device has container for spent electrodes with hole, on which an assembly is installed containing throughput channel (7) with longitudinal axis (X), the channel connects with the container the socket (46) holding the electrode holder end ensuring the mandrel. This axis (X) is approximately vertical. Device also contains equipment (46) for the electrode holder mandrel tightening or loosing, equipment (54) for electrode securing in the specified device, and equipment (28) for the spent electrode discharge in the container enabling or disabling.EFFECT: device simplifies new electrode installation instead of the spent electrode, and reduces time for electrode replacement.25 cl, 18 dwg

Higher-safety device for electrode replacement // 2553786
FIELD: process engineering.SUBSTANCE: invention relates to electrode replacement device in welding system. This device comprises first part (12) to house the electrode holder (2). Said first part (12) comprises tool electrode holder retainer Second part (14) is arranged around said first part (12) to cover electrode part (8) extending from said first part (12). Second part (14) can be detached from first part (12) at sliding along electrode and revolve relative to fixed part (14) at surrounding it. Second part (14) comprises clamping or releasing means of mandrel (6), and electrode and second part retainer (36) to withdraw it from mandrel (6) when first part (12) and second part (14) are separated.EFFECT: perfected design.21 cl, 6 dwg

Welding system with induction heating system, induction heating system and heating of part processed by welding or cutting // 2545974
FIELD: process engineering.SUBSTANCE: invention relates to welding. Proposed system (34) comprises heating inductor (36) arranged nearby welding torch or plasma cutter unit (16). Power supply induction source (38) of heating system (34) is configured to generate AC. Step-down transformer (42) is connected with said source (38). Inductor (36) is connected with step-down transformer (42) to receive AC and to induce eddy currents in part (32) to be welded for its heating ahead of moving welding arc or plasma cutter to homology temperature making at least 0.5. Said homology temperature is the relationship between material actual temperature and material fusion point, both being expressed in absolute units of temperature.EFFECT: higher welding rate, increased penetration and higher mechanical properties and quality.18 cl, 6 dwg

System for securing of carcass for welding wire in butting device and wire inlet nozzle for fastening system // 2536842
FIELD: process engineering.SUBSTANCE: invention relates to welding. Wire carcass 26 is locked by wire inlet nozzle 27 in butting device 29. Wire inlet nozzle 27 is connected by fastening device 31 to butting device 29, said fastening device being composed of cylinder with at least one spline 36 to make at least two moving jaws 37. Fastening device 31 is arranged at the end opposite the wire inlet element 32 with oval jumper, higher than cylindrical zone.EFFECT: reliable locking of carcass in welding device.8 cl, 9 dwg

Current feed nozzle for automatic welding to narrow cut // 2521166
FIELD: process engineering.SUBSTANCE: invention relates to welding equipment, particularly to current feed nozzle for welding to narrow cut at welding of 300-500 mm thick vessels operated at pressure, etc. Current feed nozzle comprises flat casing with welding wire feed channels and those for pendulum tip cylindrical rod and flexible lead-in. Said tip is articulated with said casing and consists of fixed pendulum contact plate and movable contact plate. Symmetric rectangular slots with semi-cylinder grooves are made at lateral surfaces of the casing and pendulum fixed contact plate mating surface. Flexible lead-in consists of several twisted conducting wires fitted in said semi-cylinder grooves and locked by pressure plates having appropriate semi-cylinder grooves tightened by threaded elements.EFFECT: longer life, higher quality of welding.7 cl, 4 dwg

Casing with built-in wire bundle support and built-in separator // 2507044
FIELD: process engineering.SUBSTANCE: invention relates to welding wire feed mechanism casing 10 and casing separator 40. Casing 10 comprises front and rear sides, top and bottom, opposed side holes spaced apart by casing width to receive side panel and separator 40 arranged, preferably between front and rear sides, top and bottom to extend through the center of casing width to divide the casing inner volume into working side 20 and user's side. Separator 40 is composed by the panel with one or several reinforcing elements 60 extending vertically outward from the panel side surface in immediate proximity to spindle mounting position. Said separator is made integral with one or several reinforcing elements.EFFECT: perfected design.26 cl, 12 dwg

ethod and device for power conversion, and welding set // 2507043
FIELD: process engineering.SUBSTANCE: invention relates to control over welding set 1 and to welding set. Proposed welding set comprises electrochemical storage 2, torch 7 for arcing 6 connected with device 4 of control over I/O device 5 for adjustment of welding current and power section for conversion of electrochemical storage power. Said control device 4 computes estimated magnitude of residuary welding time for arcing 6 depending of the capacity of said electrochemical storage 2 and steady-state welding current. Besides it comprises display 27 to indicate computed residuary welding time.EFFECT: control device 4 corrects residuary welding time proceeding from actual welding current magnitudes.13 cl, 5 dwg

Welding set component with housing protection element // 2498887
FIELD: process engineering.SUBSTANCE: invention relates to device 27 for protection of welding set housing element 26. Proposed device 27 is composed of plate 28. Outer side 29 of plate 28 has ledges 30. Note here that plate 28 is secured to housing 26 so that said outer side 29 interacts with the surface over which housing 26 displaces in changing of its position.EFFECT: optimised protection.9 cl, 8 dwg

ethod (versions) and device for current source control and welding face shield for current source user // 2498886
FIELD: process engineering.SUBSTANCE: invention relates to method and device for current source control 1 connected with hand-held working tool composed of torch 4. Current source parameters are with the help of control elements 3 of control and indication unit 2 at current source 1. Processing unit 9 built in current source 1 registers the torch displacement in space 6. Fast control over current source without taking off of protective clothes is allowed by activation of control function at current source. Then, displacement of torch 4 in space 6 is registered to set the torch position resultant from said displacement to control unit 2.EFFECT: higher efficiency.16 cl, 9 dwg

Attachment of gas nozzle // 2496619
FIELD: process engineering.SUBSTANCE: invention relates to welding, particularly to attachment of gas nozzle 33 to welding torch and to gas welding. Gas nozzle 33 is secured at holder 30 arranged at welding torch 10 for plug-in connection of gas nozzle 33 by turning the latter. To make this connection work, one of nozzle holder stages is composed of cam clamp to receive ring-like retainer 35. Second stage has guide surface 38 for gas nozzle 33. This stage has end thrust surface 37 for gas nozzle 33. Nozzle pipe 31 of welding torch 10 has at least one section composed of second guide surface 38 for nozzle 33.EFFECT: better attachment.8 cl, 10 dwg

Welding parameter i/o device mount for welding set // 2494845
FIELD: process engineering.SUBSTANCE: invention relates to mount 29 of welding parameter I/O device 18 for welding set 1. Said mount is composed of elastic element or film 30 with two recesses 33 for fitting on two rotary handles of device 18 with first part 38 and second part 39. First part 38 of every recess 33 makes a passage for rotary handle 34. Second part 39 of every recess 33 serves to retain rotary handles 34 between two rotary axles 37. Extra data 31 and/or scale 32 is applied on aforesaid element.EFFECT: simplified setting of welding parameters.2 cl, 4 dwg

Unit for contact ac welding, switching module for welding current transformer control, and method of making said switching module // 2486997
FIELD: process engineering.SUBSTANCE: switching module has, at least, comprises, at least, one switch 2A composed of power semiconductor device, cooling appliance 3A of electrically conducting material and current feed appliance 1A abutting switch 2A whereon abuts switch 2A to cool switch 2A. Insulation means 8A is arranged between cooler 3A and current feeder 1A to isolate cooler 3A from current feeder 1A. Switch 2A, cooler 3A, current feeder 1A and insulator 8A are configured to arranged cooler at no potential which allows decreasing length of coolant feed pipes.EFFECT: compact design.11 cl, 2 dwg

Device and method of making contacts of welding wire and contact clamp // 2477677
FIELD: process engineering.SUBSTANCE: invention relates to electric welding. Proposed device comprises, at least, two contact clamps 31 with contact zone 32 for making contacts of welding wire 13. Contact clamps 31 have retention zone 48 located opposite contact zone 32 and are fitted in sleeve 37 to move around rotational axle 43. Sleeve 37 is secured at welding torch tip 38 integrated with pressure mechanism 36 designed to apply pressing force to contact clamps 31. Sleeve 37 has retainer 42. Two contact sections 47 with sleeve retainer 37 are arranged on every clamp 31 on the side of ends of rotational axle 43. Ledge 46 located in plane parallel to said rotational axle 31 is arranged on end surface 45 of retention zone of every clamp 31. Pressure mechanism 36 applies compression force in axial direction 33 to be converted by reaction force of retainer 42 into radial force of contact pressure 35.EFFECT: permanent closure of welding wire contacts during all service life.26 cl, 16 dwg

Device to apply reverse potential to welded structure // 2475345
FIELD: process engineering.SUBSTANCE: invention relates to electric arc welding. Proposed device comprises means to attach it relative to structure component to be welded. Besides, it includes means to apply electric potential and load distribution unit. Said means to apply electric potential comprises contact cam. Said contact cam allows for a contact with grooving of butt joint to be welded. Said load distribution unit allows connection of welding cable to apply electric potential to contact cam.EFFECT: minimised defects on welded structures in electric arc welding.3 cl, 7 dwg

Device and method for making welding electrode tip // 2470754
FIELD: process engineering.SUBSTANCE: invention relates to making welding electrode tip 13 wit relevant combination between material-diameter for fitting in guide channel 12. Welding electrode 13 is fed wire feeder via, at least, one guide channel 12 by means of contact tube arranged in welding torch 10. For process automation purposes, electric arc 15 is generated, prior to dressing, between contact plate 30 connected with electric power supply and welding electrode 13 to make electrode tip with due allowance for electrode material and diameter. Welding electrode tip is made half-round with diameter not exceeding, in fact, that of welding electrode 13.EFFECT: easier electrode dressing.18 cl, 14 dwg

ethod and device for processing welding powder // 2470753
FIELD: process engineering.SUBSTANCE: invention may be used for welding with feed of fluxing powder. Welding set 1 comprises, at least, first container 4 for fluxing powder. Said first container 4 comprises outlet 6 with channel 7 to output powder. Welding set 1 has first element to feed heated gas in aforesaid first container. In compliance with proposed method, powder is kept in said first container. Heated gas is fed in first container to heat powder to be fed in welding zone 3.EFFECT: uniform and sufficient heating of powder.34 cl, 9 dwg

Welding set contact assembly // 2466836
FIELD: metallurgy.SUBSTANCE: contact assembly 1 comprises lengthwise axle 6, case 7, first contact device 32, second contact device 33 and third contact device 25. Third contact device 25 is arranged between first contact device 32 and second contact device 33 to displace relative to both. First contact device 32 features elongated shape to be fixed in case 7 and extend from first edge 24 located between case first edge 8 and second edge 9 to second edge 31. Second contact device 33 features elongated shape to be suspended by spring in case 7 and extend from first edge 17 located between case first edge 8 and second edge 9 to second edge 18.EFFECT: uniform pressure on both welding wires.23 cl, 7 dwg

Welding gun for welding by metal electrode in atmosphere of active or inert gas // 2464138
FIELD: process engineering.SUBSTANCE: invention relates to welding guns for welding by metal electrode in atmosphere of active or inert gas. Gun comprises handle. Said handle has body 1 and stick 2. Stick 2 is arranged to turn relative to body 1 to extend partially through the length of said body. End of said stick may turn relative to body 1 through the distance that allows hand to be located between body 1 and stick 2 and body 1 to be located above hand. With stick end interacting with body 1, both stick and body make handle for hand.EFFECT: ease of use.5 cl, 1 dwg

Device and method of cleaning welding torch // 2455134
FIELD: process engineering.SUBSTANCE: cleaning device 1 comprises, at least, two coils 4, 11 and opening 3 for mounting torch 5, power supply 7 connected with said coils and, if required, with device to apply washing fluid on torch point 5. All components are arranged common case 2 and controlled one control device 8. To up the cleaning quality and increase cleaning zone, coils may be fed independently by said power supply. Cooler 14 is used to cooling coils 4, 11.EFFECT: higher quality of gas cleaning.13 cl, 3 dwg

Device and method to measure protective gas // 2423210
FIELD: process engineering.SUBSTANCE: invention relates to device and method of measuring protective gas 8 in arc welding by analysing it after escape from gas nozzle 27 of torch 10. To analyse protective gas, external instrument incorporates, at least, one pickup 31. Said pickup 31 is arranged at distance 38 from torch 10 equal, in fact, to distance 38 between torch 10 and part 16 in welding to allow simulation of protective gas escape and effects like in actual welding conditions. Pickup 31 is connected with processing unit 32 and, via said unit, with welding apparatus.EFFECT: fast, accurate and efficient estimation of protective gas effects.43 cl, 6 dwg

Welder inverter source // 2362658
FIELD: technological processes.SUBSTANCE: invention is related to welder inverter source and may find application in electrical engineering. Source body includes base, front and back panels with ventilation grates, detachable cover with side walls, and separating panel installed horizontally relative to base. This panel is fixed between front and back panels, which are joined to base and detachable cover to create an upper compartment. High-voltage and low-voltage electronic components are installed in upper compartment. Lower compartment is arranged in the form of air duct, which is equipped with fan and at least the first and second radiators for cooling of the following components installed in it - power transformer, throttles and power rectifying modules. Separating panel has an opening for installation of the first radiator with its flat horizontal surface inside the upper compartment. The first and second radiators are installed with vertical location of fins relative to base and are fixed on separating panel with longitudinal installation of fins relative to air flow direction from fan. The second radiator is fixed with vertical displacement relative to separating panel with creation of gap. Power rectifying modules are installed in specified gap on flat horizontal surface of this radiator.EFFECT: higher reliability of source operation.9 cl, 9 dwg

Electrode holder for manual electric arc welding (versions) and electrode magazine for electrode holder // 2356710
FIELD: welding jobs.SUBSTANCE: invention relates to Electrode holder for manual electric arc welding (versions) and electrode magazine for aforesaid electrode holder and can be used in machine building for producing welding parts. The proposed electrode holder comprises a clamp, handle and magazine. The said clamp represents two two-tooth or four-tooth forks turning relative to each other. Clamp opening brings about a forced removal of electrode calcine from the clamp opening. Note that the electrode holder can be reloaded blindly, not touching the electrode. Note also that the magazine van be detached from the electrode holder and used independently.EFFECT: higher efficiency of welding.7 cl, 39 dwg

Housing of welder's helmet // 2319587
FIELD: welding engineering.SUBSTANCE: housing is made of a chute-like member and comprises front, side, top, and bottom walls. The walls forms a housing opened from the back side provided with closed back edge. The intermediate part of the front wall is provided with a window defined by the frame projecting outward and having a means for locking the glass in the window. The sides are inclined at an angle of 35-45° one with respect to the other . The top and bottom walls are inclined to the front wall at an angle of 30-45°. The intermediate part of the front wall is provided with a hollow formed by the top, side, and bottom chamferings arranged around the frame. The top chamfering is inclined to the top wall at an angle of 90-110°, and the bottom chamfering is inclined to the bottom wall at an angle of 90-130°. Each side chamfering is composed of bottom side and top side chamferings. The angle between the plane of the front wall and the plane of the bottom side chamfering is equal to 35-45°. The angle between the top side chamfering and bottom side chamfering is equal to 110-130°, and the angle between the top side chamfering and top chamfering is equal to 100-130°.EFFECT: improved design.2 cl, 4 dwg

Device and method of connection of input of plasma arc torch with supply source // 2304497
FIELD: mechanical engineering; welding.SUBSTANCE: invention relates to extension of input of torch for gas-electric welding and plasma mechanical machining which contains pipeline with distal end and proximal end. Distal connecting element is arranged on distal end of pipeline, and proximal connecting element is arranged on proximal end of pipeline. Distal connecting element is made for engagement with connecting element of torch input secured on proximal end of torch input. Proximal connecting element is made for engagement with connecting element of supply source. Distal connecting element and connecting element of torch input form quick-release joint, and proximal connecting element and connecting element of supply source form quick-release proximal joint. So, torch input extension can be quickly installed between input of torch and supply source and disconnected from input of torch and supply source.EFFECT: possibility of welding on objects arranged at distance from supply source of torch.71 cl, 12 dwg

Welding operator mask and method for making it // 2268123
FIELD: attachments for protecting faces, eyes, respiratory system of welding operators during welding procedures, namely masks and method for making them.SUBSTANCE: mask includes three-dimensional body of composition material formed by front, lateral, upper and lower walls. Front wall is rectangular one; upper and lower walls are in the form of isosceles trapezium; lateral walls are trapezoidal ones. All walls are formed of one blank. In cavity of mask there is unit for securing it to head of welding operator. In mean zone of front wall there is box frame extending outside and made as one piece with said wall. On inner surface of mask body along each angle formed by walls there are embossed portions or grooves for reducing flexure resistance of walls. П-shaped in cross section rigidity ribs are formed on outer surfaces of front, lateral, upper and lower walls, ribs are shifted relative to embossed portions or grooves and designed for increasing flexure resistance of walls. Flexure portion of wall is arranged between faces of rigidity ribs closed along perimeter of each wall. Lateral, upper and lower walls, upper and lower portions of front wall are convex outside. Mean central portion of front wall around box frame is flat one. On outer surfaces of lateral walls there are thickened portions arranged crosswise, supporting axle of mask mounting means and having concentrically formed radial grooves for fixing member of mask mounting means.EFFECT: enhanced ergonomic properties, improved strength, small mass of mask.4 cl, 19 dwg

Attachment for surfacing inner surface of small-diameter openings // 2256539
FIELD: welding, namely apparatuses for surfacing inner cylindrical surfaces, possibly electric-arc corrosion protection flux surfacing.SUBSTANCE: apparatus for belt type surfacing of cylindrical surfaces of small-diameter openings is in the form of surfacing attachment and it includes guiding duct for passing welding material. At outlet of said duct there is electric current supply mouthpiece with pressing device. Guiding duct is rectangular one, it has shaped working surface. Contact surface of belt and pressing device is arranged over level of contact surface of belt and current-supply mouthpiece without their direct contact. Width of working surface of electric current supply mouthpiece and pressing device is less than that of fed belt. Pressing device is in the form of pressing roller or pressing plate whose working surface is rounded.EFFECT: enhanced efficiency of surfacing, enlarged manufacturing possibilities of surfacing head, improved stability of belt feed, enhanced quality of surfaced coating due to optimization of constructional members of attachment.3 cl, 3 dwg

A connector for attaching a welding torch // 2242344
The invention relates to welding, in particular, to a connector for attaching a welding torch and can find application in mechanical engineering in the manufacture of welding equipment

Welding station // 2242342
The invention relates to electric arc welding, namely the welding stations for electric arc welding

Device for gas protection welding seam // 2232069
The invention relates to the welding technique, in particular to a device for automatic welding in shielding gases sheet structures of the active metals

The way to protect the bearing rotary machine from the electrical current when welding on the unit // 2230637
The invention relates to mechanical engineering and can be used during installation and repair of units, consisting of a rotary machine

Welding torch // 2151035
The invention relates to a consumable electrode welding in shielding gases and can find application in various engineering industries

The processing device by a laser beam // 2150361
The invention relates to the processing device by a laser beam, in which a supply of the laser beam to the workpiece being machined by using optical fibers