591results about How to "Shorten welding time" patented technology

The invention provides a simultaneous multiple-layer welding setting device, comprising a cascading pattern determining part for determining the cascading pattern of a welding pass corresponding to joints of objects based on basic values of each input data and the cascading pattern data; a welding pass determining part for independently running which is used for determining the welding combination after excluding the welding pass with a large sectional area as the welding pass for independently running when the difference value of the sectional area of a deposited metal quantity is over the predetermined threshold value when combining the welding passes in the cascading pattern of two joints of the objects; a welding conditions determining part for determining each welding pass welding condition comprising current values corresponding to a welding wire feeding speed calculated based by an input welding condition and a seam forming position; and an action procedure generating part for generating a robot action procedure based on the determined welding conditions, and setting in a robot controlling device. The simultaneous multiple-layer welding setting device shortens the welding time of simultaneously welding a plurality of layers of a plurality of welding joints of a steel structure by two welding robots.

The invention discloses equipment and a method for efficiently welding chips of double-interface intelligent cards. The equipment for efficiently welding the chips comprises a card transfer mechanism, a chip transportation mechanism, chip turnover mechanisms, an antenna correcting device, welding devices and a turntable. The card transfer mechanism is used for transferring each to-be-welded card to a card access station and fetching each welded card from the card access station, the chip transportation mechanism is used for transporting each chip to the card access station, the chip turnover mechanisms are used for turning the chips in horizontal states so that the chips can be in vertical states, the antenna correcting device is used for correcting the perpendicularity of the ends of each antenna, the welding devices are used for welding the ends of the antennas at corresponding welding spots of the chips, the turntable has an intermittent precision stopping function, a plurality of working units which are circumferentially and uniformly distributed are arranged on the turntable, and a card positioning mechanism and the corresponding chip turnover mechanism which can intermittently rotate along with the turntable are arranged in each working unit; working stations which are circumferentially and uniformly distributed are fixedly arranged at the outer periphery of the turntable, and the quantity of the working stations is identical to that of the working units. The equipment and the method have the advantages of high welding efficiency, good welding quality, convenience in use and maintenance and the like.

Disclosed is a method for fixing a printed circuit board (PCB) with a mark point location function. The method is characterized by including the following steps: (1) firstly obtaining two mark point images on a reference PCB with a camera when programs are made, (2) obtaining two mark point images which are matched with two chosen mark point positions in the programming process and are on the detected PCB with the camera in the process of welding, and (3) comparing two groups of mark points which are captured in the step (1) and the step (2). If the two groups of the mark points are not out of position, the board position is normal, and if skewing exists, the PCB can be compensated. By the means of the method for fixing the PCB with the mark point location function, welding precision can not be influenced by the factors such as the size, the height and the skewing of the PCB, and simultaneously, welding time is deceased and welding speed is increased.

The invention belongs to the technical field of metallurgy and particularly relates to a preparation method of a super-thick alloy steel plate. The preparation method comprises steps that surface treatment is performed on two alloy steel continuous casting slabs matched in length and width dimension; the alloy steel continuous casting slabs are overlapped on a steel feeding swing arm of a tilting gear and align to each other; the alloy steel continuous casting slabs are fed into a vacuum chamber and welded through a structure with two electronic guns; when carbon equivalent of the continuous casting slabs to be compounded is smaller than 0.3%, a front electronic gun begins to perform welding from ends of the alloy steel continuous casting slabs, and a rear electronic gun begins to perform welding from middles of the alloy steel continuous casting slabs; when carbon equivalent of the continuous casting slabs to be compounded is higher than or equal to 0.3%, the distance between the two electronic guns is shortened, an electron beam of the front electronic gun is regulated into a defocusing mode, the front electronic gun preheats welding joints, and the rear electronic gun performs welding soon afterwards; heating rolling is performed on the welded slabs to obtain the super-thick alloy steel plate. By means of the technical scheme, compound interfaces between the continuous casting slabs to be compounded completely align, and yield of the super-thick alloy steel plate is increased.

The invention provides a tin-radical welding flux/copper particle composite welding flux capable of forming high-temperature welding spots rapidly at a low temperature. The tin-radical welding flux/copper-particle composite welding flux is composed of tin-radical welding flux powder, copper particle powder and welding paste, wherein the weight ratio of the tin-radical welding flux powder and the copper-particle powder lies between 5:2 and 2:3, the weight ratio of the remaining welding paste is 4%-20%, the particle size of the tin-radical welding flux powder is preferentially from 5 micrometers to 60 micrometers, and the particle size of the copper particle powder is from 0.1 micrometer to 10 micrometers. By means of the tin-radical welding flux/copper particle composite welding flux, the characteristics of a low melting point of the tin-radical welding flux and good wetting reaction of tin-copper are utilized, the high-melting intermetallic compound (IMC) interconnection welding spots can be formed within a short moment at the low temperature and without any pressure, and the tin-radical welding flux/copper particle composite welding flux is applicable to leading wire interconnection of electronic devices when a high temperature is caused during the service process or which performs the service at the high temperature. According to the tin-radical welding flux/copper particle composite welding flux capable of forming the high-temperature welding spots rapidly at the low temperature, the technology is simple, the cost is low, the practicability is great, and the problems of high cost, long welding time and high welding temperatures in existing chip packaging materials are solved.

The invention discloses a submerged-arc welding root welding and back chipping process of a thick plate with a K-type groove. The K-type groove is an asymmetric K-type groove, an upper open angle and a lower open angle of the groove are both 45 degrees to 50 degrees, and truncated edges are not reserved at the root. During assembly, groove clearance of 2mm to 3mm is reserved. During welding, solid gas protection welding wires under pulse current are adopted for backing welding of a root pass of the front side of a K-type groove test piece, and after the root pass is thoroughly fused, a part of weld metal penetrates through the reverse side of the groove to achieve backing welding. After welding, back chipping of the reverse side is performed. Finally, gas shielded welding under large current is adopted for fusion welding of the roof of the reverse side groove, and gas rich in argon is used as protective gas. The submerged-arc welding root welding and back chipping process reduces time for slag removal of root pass of submerged-arc welding and polishing and finishing of the reverse side groove of the welding test piece, improves welding efficiency by more than 30%, removes a carbon arc gouging process, decreases welding noises and dust emission, lowers labor intensity of welders and reduces time for damaging workers under high-decibel noises.

The invention discloses a flash butt welding machine for vehicle door corner welding, which comprises a base, clamping devices, an upsetting mechanism and an electric controller, wherein the clamping devices comprise a first clamping device for clamping a right welding piece and a second clamping device for clamping a left welding piece. The flash butt welding machine is characterized by also comprising a clamp adjusting device and an adjusting bottom plate capable of moving freely in a space, wherein the second clamping device is fixedly arranged on the adjusting bottom plate; an upsetting device comprises a guide rail seat, a moving component slipping along the guide rail seat and a servo driving device for driving the moving component to move; the first clamping device is fixedly arranged on the moving component; and a first insulating plate is arranged between the bottom of the clamp adjusting device and the base, and a second insulating plate is arranged between the bottom of theguide rail seat and the base. Compared with the prior art, the flash butt welding machine can randomly adjust the space placing position of the welding piece to ensure the welding quality and the appearance and profile requirements of a welded product; and the clamp adjusting device is convenient and simple in operation, and improves the welding efficiency.

A sprocket assembly, formed of dissimilar materials, includes at least one tooth member made of ferrous material and a circular disk made of a light metal such as aluminum or an aluminum alloy. The circular disk supports the tooth member on an outer peripheral surface thereof. The tooth member is dissimilar-metal welded to the circular disk, either by laser welding or by electronic beam welding. Optionally, multiple individual tooth members may be fitted into notches formed in an outer periphery of the circular disk, and welded therein. A method of making a sprocket assembly is also described.

The invention relates to a method for a welding cut surface joint formed by assembling cut surface ports, in particular to a method for welding a cut surface butt joint formed by thin welding base materials in nuclear power engineering, and aims to solve the problems that the machining period of tubes and welding period are relatively long, the welding cost is high, and part of the materials are not completely welded in the prior art. According to the method, the thickness of each welding base material is less than or equal to 6.0mm. The method comprises the following steps of: selecting protective gas and a tungsten electrode; assembling craters; overlapping an ultrasonic electrical signal on pulse welding current to generate a stable ultrasonic- tungsten inert gas (TIG) combined weld electric arc by taking ultrasonic waves and TIG combined electric arc welding machine as a welding power supply of automatic welding equipment, and performing backing welding on the surface butt joints without feeding wires; performing cosmetic welding, and finishing welding. By the welding method, the processing step of forming a groove is eliminated, so that the welding workload, the consumption of welding filling materials and the welding cost are reduced, and the welding efficiency is improved.

The invention relates to a special platform for welding a multifunctional cylinder cube. The platform comprises a movable trolley, a support rack, a cube clamping device, an adjusting platform, a cylinder locking device, a dust collection smoke discharge device and a cooling device, wherein the support rack is mounted in the middle position of the movable trolley; the cube clamping device is mounted above the support rack; the adjusting platform is positioned at the left side of the cube clamping device; the cylinder locking device is mounted rightly above the adjusting platform; the dust collection smoke discharge device is positioned at the front side of the movable trolley; and the cooling device is positioned at the back side of the movable trolley. The platform can realize the functions of peripheral locking of a cube welding workpiece and radial locking of a cylinder welding workpiece, can realize a space movement function in a direction of four degrees of freedom of three-translation and one-rotation in the welding process of the cube welding workpiece through the support rack, can achieve a multi-angle welding effect, can realize quick cooling treatment for the welded workpiece through the cooling device, and improves the welding efficiency.

A target material assembly manufacturing method comprises the steps of providing nickel target material blank and a back plate, wherein the back plate is provided with grooves for containing the nickel target material blank; utilizing brazing filler metal to form a first brazing filler metal layer on a face, to be welded, of the nickle target material blank; utilizing brazing filler metal to form a second brazing filler metal layer on a face, to be welded, of the back plate; placing the nickel target blank into the groove of the back plate, and utilizing the welding technology to combine the first brazing filler metal layer and the second brazing filler metal layer so as to form a target material assembly composed of the nickel target blank and the back plate. The target material assembly manufacturing method enables ultra-pure nickle target materials to be reliably combined with the back plate, is high in welding efficiency and small in welding defect rate, and can meet requirements of long-term stable production and utilization of target materials.

A parallel-connected LED illuminant, including: a parallel-connected bracket, LED light emitting unit groups, and fluorescent powder layers. The parallel-connected bracket includes two or more than two linear substrate monomers. The linear substrate monomers are disposed in parallel. Each of the LED light emitting unit groups is disposed in the straight line on each of the linear substrate monomers along the long axis thereof. The LED illuminant is connected in series with electrode pins disposed at two ends of the parallel-connected bracket. The surface of each linear substrate monomer where each LED light emitting unit group is disposed is coated with each of the fluorescent powder layers.

The invention discloses a welding control system and a control method thereof, the first image acquisition module, the second image acquisition module, the first welding workbench clamping sensor, the second welding workbench clamping sensor, the welding workbench distance The sensor and the welding table moving motor control button are respectively connected to the input port of the PLC; the welding detection camera is connected to the weld image processing module, and then the weld image processing module is connected to the input port of the PLC; one end of the welding robot control system is connected to the PLC , the other end is connected to the main body of the robot; the first contactor coil, the second contactor coil, the third contactor coil and the fourth contactor coil are connected to the output end of the PLC. The control system can automatically identify the workpiece type, thereby automatically selecting the processing program, and can automatically detect the welding quality. The control method of the control system can reduce processing time and reduce the standby time of the welding torch.

The invention provides a robot path planning method applied to weld joints. The method comprises the following steps of acquiring basic information of each weld joint, wherein the basic information comprises the length of a weld joint, endpoints coordinates, and whether having the directivity requirement or not; calculating a no-load path according to the endpoints coordinates of each weld joint;combining the basic information and the no-load path, calculating to obtain an optimal path through a genetic algorithm by ; initializing an initial value of the ant colony algorithm pheromone according to the optimal path; and combining the basic information and the initial value of the pheromone, calculating to obtain an optimal welding path by utilizing an ant colony algorithm. The method can be used for carrying out more effective process constraint on a robot moving path by acquiring the basic information of the weld joints, so that the weld joints meet the directivity requirements; an optimal solution obtained by utilizing the genetic algorithm is used for initializing the pheromone of the ant colony algorithm, so that the ant colony algorithm can quickly and effectively obtain the optimal solution; and the advantages of the two algorithms are complemented, so that the welding path capable of saving welding time and meeting the weld joints requirements is effectively planed.

The invention discloses an ultrasonic and electromagnetic pulse composite welding device and a composite welding method. The composite welding device comprises a device base, a composite welding component and a welding part clamping device; the composite welding component is installed above a worktable of the device base; the welding part clamping device is installed on the worktable and can be lifted up and down; the composite welding component comprises a control box, an ultrasonic transducer, an amplitude-change pole and a welding head; the upper end of the ultrasonic transducer is installed inside the control box; the lower end of the ultrasonic transducer is connected with the amplitude-change pole; the lower end of the amplitude-change pole is connected with the welding head; and anelectromagnetic coil is positioned inside the welding head. According to the composite welding method, firstly welding positions of two welding plates are subjected to ultrasonic softening and oxide film removal by utilizing ultrasonic energy; and subsequently the welding positions are applied with transient high voltage electromagnetic force generated by the electromagnetic coil sot that weldingformation of the welding positions is realized. The composite welding device can meet the welding requirements of various dissimilar-material plates; and the composite welding method can improve the stability of the welding positions.

The invention proposes a new aluminium compound material liquid phase impacting diffusion welding process which belongs to diffusion welding technology field. The invention solves the low quality of aluminium compound material diffusion welding. The invention mainly includes: the welding thermal reservation selection is in the aluminium compound material liquid and solid phase temperature period, in the temperature range whose liquid phase volume piece-rate is 20-35% correspondent to the base body liquid phase, the thermal reservation time is 30 seconds, at first applies initial welding pressure is 5MPa, the impacting pressure is 80-120MPa, the impacting speed is applied after the welding temperature thermal reservation for 5-10 seconds, the impacting temperature is 350-700mm/s. the impacting allying time interval is 0.0001-0.01 seconds. The invention applies to aluminium compound material made up of aluminum material 6061, 6063, 2014, 2A12, 5A06, 6A02, 7A04, ZL101, ZL102 and enhancing material SiC, Al2O3, TiC, AIN.

A rotation type reflow soldering furnace comprises a furnace body, a furnace door, an impeller, a rotation control device, a tray, a tray position adjusting device, a vacuum pump and a temperature controller. The rotation type reflow soldering furnace is characterized in that the furnace body is formed by intersection of a cylinder and a cuboid equal in height, the furnace door is arranged on the wall of the furnace body, the furnace body is divided into a loading zone, a heating zone, a buffering zone and a cooling zone, a hot plate is arranged in the heating zone, a cold plate is arranged in the cooling zone, the impeller is arranged in the furnace body and connected with the rotation control device in a circuit manner, a to-be-soldered electronic component and a solder tray are placed between two blades, a vacuum pipe is connected with the heating zone via a pipeline, and the temperature controller is connected with the hot plate and the cold plate via circuits. The rotation type reflow soldering furnace has the advantages that the rotation type reflow soldering furnace has an independent heating system and an independent cooling system, and can perform non-interfering heating and cooling processes in a vacuum or protective atmosphere, repeated heating and cooling is not needed, and accordingly soldering time can be saved, power consumption is reduced, and working efficiency and soldering quality are improved.

The invention discloses torch soldering equipment which is used for linearly moving on a rail and is used for soldering the U-shaped tube of an all aluminum heat exchanger. The equipment is composed of an electric control unit, a material feeding area, a welding and heating area, a blanking area and a pneumatic control unit. Under the condition that liquefied petroleum gas (LPG), air, cooling water, a power supply and the like are switched on as required, the existing product specification (technological parameters, such as chosen transmission link speed, flame size and the like) is chosen, and then, ignition is carried out to start a conveyor, and a conveying chain is operated under a constant speed. Workpieces (parts and welding rings which are assembled as required) which need to be welded are continuously put in the material feeding area to a conveying link plate; products are conveyed to two sides of a welding area by the conveying link plate automatically at a constant speed to be heated and welded by symmetrical fire row flames; then the products are conveyed to the blanking area; and the products are continuously unloaded from a conveying link in the blanking area and simultaneously a welding effect is monitored.

An Al—Si based alloy and an alloy member made of the alloy, in which when alloys produced by diecasting under high vacuum conditions are welded, weldability can be improved without increasing plate thickness of welded portions and reducing gas content in diecasting.