189results about How to "Short welding time" patented technology

The present invention relates to a LED lamp pin welding equipment. It includes machine frame, transmission mechanism positioned under the machine frame, conveying chain positioned on the machine frame, vibration plate, LED-placing device, clamping device, stripping and wire-cutting device and welding device. It is characterized by that on the above-mentioned machine frame it has two vibration plates, two LED-placing devices, two clamping devices, two stripping and wire-cutting devices and two welding devices which are respectively positioned at two sides of conveying chain. Besides, said invention also provides the welding method matched with said LED lamp pin welding equipment.

In a method and device for performing welding, after the welding current reaches a first current value during a short circuit, the feeding of the welding wire is stopped, slowed down, or moved backward. As a result, the opening of a short circuit is urged to reduce the frequency at which welding is unnecessarily interrupted by an overcurrent protection function. This achieves high weld quality such as the absence of welding defects, and high production efficiency.

For the production of loop handle shopping bags based on semi-tube sheeting consisting of thermoplastic plastic, an edge strip of the semi-tube sheeting is folded onto itself and reinforcement warps, consisting of a weld-friendly thermoplastic plastic that provides a good weld, are attached on the interior sides of the edge areas by means of glueing or welding at a distance corresponding to the width of the shopping bags to be produced.

Subsequently, the edge strip is folded back so that the added reinforcement warps are positioned back-to-back. Double-layer handle strips are positioned in a U-shape and placed between the reinforcement warps with their end areas of the free shanks, and welded together with the edge areas through the reinforcement warps between welding devices. The shopping bags are then separated from the semi-tube sheeting by means of separating weld seams.

The invention provides a laser synchronous welding device which is used for welding an automobile lamp body and a lens. The laser synchronous welding device comprises a laser emitter, a first mold, a second mold and a light guiding pipe. The laser emitter is connected with an optical fiber set and meanwhile provides a plurality of beams of lasers. The first mold is used for containing the lamp body and suitable for moving up and down relative to the second mold. The second mold is used for containing the lens and evenly provided with a plurality of optical fiber fixing holes at the position corresponding to the welding position of the lens. Each optical fiber of the optical fiber set is connected to the corresponding optical fiber fixing hole. The light guiding pipe is used for shaping and focusing the lasers and located in the second mold. The light guiding pipe transversely penetrates the optical fiber fixing holes, and therefore the lasers can irradiate the light guiding pipe after being transmitted through the optical fibers. When the first mold moves to coincide with the second mold, the lasers shaped by the light guiding pipe penetrate the lens and are focused on welding ribs of the lamp body. The welding ribs of the lamp body are molten, and therefore the lamp body and the lens can be welded together. The device finishes welding the whole automobile lamp synchronously at a time and is high in efficiency and low in cost.

The invention provides brazing powder for ultrasonic assisted brazing and a brazing method. The brazing powder is prepared by uniformly mixing tin copper powder or tin silver copper powder, or powderof the tin copper powder mixed with the tin silver copper powder with any one kind, or any two kinds, or any three kinds, or any four kinds, or any five kinds of nickel powder, cobalt powder, copper powder, tin powder and titanium powder of active nanoparticles with the diameters being 1-1000nm according to the mass ratio being at most 20%. According to the brazing powder for ultrasonic assisted brazing and the brazing method, the temperature is low during welding, and the active nanoparticles are adopted; by oscillation heating of an ultrasonic generator, the metallurgical reaction between solder or the nanoparticles and a base material is promoted, the full-solid phase or semisolid state low-temperature interconnection of lead-free solder is realized, and the welding temperature is morethan 30% lower than conventional liquid phase interconnection; oscillating activation and friction generated by the ultrasonic generator can cause an oxidation film on the surface of the welding basematerial to be broken to achieve the effect of film removal, thus gas pollution from a welding flux is reduced, the welding pollution is less, and the joint quality is high.

The invention discloses a welding device. The welding device comprises a high-frequency device, a first coil segment and a second coil segment. The first coil segment and the second coil segment are oppositely arranged, and the relative position of the first coil segment and the second coil segment can be adjusted so that a matching state of the first coil segment and the second coil segment and a separating state of the first coil segment and the second coil segment can be switched. When the first coil segment and the second coil segment are in the matching state, a first end of the first coil segment and a first end of the second coil segment are electrically connected with the high-frequency device respectively; the first end of the first coil segment is close to the first end of the second coil segment, a second end of the first coil segment makes contact with a second end of the second coil segment, so that an annular coil is formed by the first coil segment and the second coil segment. When the first coil segment and second coil segment are in the separating state, the second end of the first coil segment is separated from the second end of the second coil segment. The welding device can be used for welding air suction pipes, air cylinder connecting pipes and liquid accumulator elbows, and is short in welding time and high in welding efficiency.

A shear-assisted solid state welding method for joining of metal parts, involves a first step of heating opposing surfaces in a non-passivating environment to a temperature in the hot working temperature range of the metal. A second step involves bringing the opposing surfaces into contact while still in the hot working temperature range, and applying compressive stress sufficient to substantially prevent sliding in response to shear displacement, causing plastic flow in the hot layers. A third step involves imposing relative shear displacement of the metal work pieces without disengaging the opposing surfaces. The shear displacement induces plastic shear strain within the hot layers to progressively induce bonding.

The invention provides an anti-detonation, fireproof, insulating and noise reduction ocean platform bulkhead structure which comprises a pair of sandwich plates which are arranged in parallel in an up-and-down mode and a shock resistance structure. The shock resistance structure comprises upper trapezoid sets and lower trapezoid sets which are respectively composed of three leaf springs. Damping materials are arranged between the upper trapezoid sets and the lower trapezoid sets. The adjacent upper trapezoid sets and the lower trapezoid sets are connected through damping springs. The upper trapezoid sets and the lower trapezoid sets are filled with first stuffing. Each sandwich plate comprises a pair of upper skin plate and lower plate which are arranged in parallel, and the outer surfaces of the skin plates are coated with insulating layers, wherein a laminboard is arranged between the two skin plates, and the gaps between the laminboard and the skin plates are filled with second stuffing. The anti-detonation, fireproof, insulating and noise reduction ocean platform bulkhead structure has the advantages of being capable of resisting detonation and fire, insulating, capable of reducing noise, simple in structure, capable of facilitating coating construction and quality inspection, short in construction time, suitable for rush repair and the like.

The invention discloses an air conditioner liquid storage device welding protection device and an application method thereof, and belongs to the technical field of welding. The air conditioner liquid storage device welding protection device comprises an outer ventilation block and an inner ventilation block. The outer ventilation block is of a rectangular block-shaped structure and is provided with a transverse air blowing hole and longitudinal air blowing holes and connected with an air source through an outer ventilation connecting hole. An inner air blowing hole is formed in the inner ventilation block and connected with the air source through an inner ventilation connecting hole. According to the method, a cylinder is inflated with protection air through the inner ventilation block in the welding process, the welding position is immediately inflated with the protection air through the outer ventilation block after welding is finished, and air is prevented from making contact with a welding line. By means of the air conditioner liquid storage device welding protection device and the application method thereof, the surface of a welded part can be prevented from being oxidized during liquid storage device welding, the connecting strength of the welding line is improved, the quality of a finished product is improved, and the production cost is reduced.

The invention provides a preparation method of a high-temperature serving welding point based on tin-filled foamy copper, wherein the foamy copper has a three-dimensional porous structure and is prepared by adopting a dealloying corrosion method; brazing filler metal is bought; and the overall process is a heating and pressurizing welding process. Each welding point can be obtained in a welding way within a short time (5 min) under a low-temperature (230 DEG C) and low-pressure (3-5 MPa) condition; moreover the obtained mutually-connected welding points serve under a high temperature and can keep relatively good reliability; and each welding point is good in mechanical properties, good in electric conductivity and heat conductivity and widely applied to various high-temperature welding fields.

The invention relates to a manufacturing method for a dissimilar alloy integral blade disc structure. The method comprises the steps that a blade disc is rotationally and axially mounted on a high-conductivity metal support base through a high-conductivity metal support shaft, and the support base is mounted on a graphite electrode bottom plate; and after blades and the blade disc are assembled, discharge plasma diffusion welding is adopted for welding, during welding, the upper portions of the blades are pressed through a graphite electrode pressing block, direct current pulse current is connected between the graphite electrode pressing block and the graphite electrode bottom plate, discharge plasma is generated, diffusion welding of the blades and the blade disc is rapidly achieved underthe action of impact pressure, joule heat and an electric field, all the blades are welded to the blade disc, and the integral blade disc is obtained, wherein the blades and the blade disc are prepared from different alloys. Through the discharge plasma diffusion welding method, the problems of high manufacturing difficulty and high scrap rate of integral blade discs are solved, the performance and economic complementarity advantages of the dissimilar alloys are fully achieved, and the demand for the high performance integral blade disc of aeroengines is met.

The invention discloses an automatic welding machine for a gold sample cell, which comprises an argon chamber (1), an argon arc welding machine (2), a program controller (3); an admitting port (4) and a vent port (5) are arranged in the argon chamber; a turnplate (6) is arranged in the argon chamber; the turnplate is connected with a driving motor (7); a plurality of gold tube locating holes (8) are formed on the turnplate; each gold tube locating hole is positioned on a circumference which takes the rotating center of the turnplate as the center thereof; an infrared emitter (9) and an infrared receiver (10) are respectively arranged in the argon chamber on the two sides right above the gold tube locating holes; the tungsten welding pin (11) of the argon arc welding machine is arranged in the argon chamber; the end part of the tungsten welding pin is arranged right above the gold tube locating holes; and the program controller is connected with the argon arc welding machine, the driving motor, the infrared emitter and the infrared receiver. The method adopts automatic welding, so that the welding efficiency is high, the success rate of welding is 100%, the welding line is even and smooth, the welding time is short, and the maximum heating temperature of the sample does not exceed 40 DEG C.

The invention discloses motor stator core laser automatic welding equipment which comprises an industrial personal computer chassis, an automatic feeding mechanism, a pressing rotary mechanism and a laser welding mechanism; the feeding mechanism is composed of a Y-axis module, an R-axis rotating mechanism and a welding carrier, and the welding carrier rotates along with the R-axis rotating mechanism; the pressing rotary mechanism is composed of a pressing air cylinder and a follow-up rotating mechanism, and the follow-up rotating mechanism rotates along with the welding carrier; the laser welding mechanism is composed of a collimation welding head, an industrial camera, a light source, an X-axis manual module, a Z-axis module and a Z-axis servo motor; and different welding focal lengths can be adjusted according to different product specifications, an operation displayer and a monitor are installed in front of an equipment protective cover, operational program calling and welding effect monitoring are facilitated, operability and the product yield are improved, the welding time is short, the welding carrier is easily manufactured, the production efficiency can be effectively improved, the structure is simple and stable, and equipment faults are effectively reduced.

The invention discloses a welding method of an arc-shaped welding seam, comprising the following steps of: selecting a submerged-arc welding machine; selecting a round steel according to the width of a guide wheel of the welding machine; bending the round steel into a shape of a welding seam radian; fixing the round steel on a steel plate to be welded in a spot-welding mode; clearing a position needing welding by positioning, and clearing away impurities such as oxide skin, rust, water, oil stains, and the like; preheating; carrying out positioned welding; welding; and finally inspecting: carrying out appearance inspection and magnetic powder inspection. The invention has the advantages of attractive welding seam formation, high welding speed, working efficiency improvement, labor strength reduction and less welding deformation.

The invention provides a welding device and application. The welding device adopts non-consumable-electrode arc welding for welding and comprises a frame, at least one positioning and clamping mechanism, at least one welding mechanism and at least one rotary mechanism. The positioning and clamping mechanisms are arranged on the frame and used for positioning and clamping welding workpieces, and an included angle between the axis of the clamped welding workpieces and the horizontal plane is 2-178 degrees. Each welding mechanism comprises at least one welding gun which is used for welding the clamped welding workpieces. The rotary mechanisms drive the welding workpieces or the welding guns to rotate around the axes of the welding workpieces during welding.

The invention relates to an automatic welding device, a clamping robot and an automatic welding method. The automatic welding device comprises: a code material tire (12), which is used for placing cross-shaped transverse steel bars and longitudinal steel bars to be welded materials, wherein the transverse steel bars and longitudinal steel bars form a a reinforcing mesh (10), a clamping robot (13)for judging whether there is a gap between the transverse reinforcing bars and the longitudinal reinforcing bars, and clamping the transverse reinforcing bars and the longitudinal reinforcing bars having the gap so as to be in close contact with each other, and a welding robot ( 14) for welding the transverse reinforcing bars and longitudinal reinforcing bars that are close to each other.

The invention provides a method and equipment for welding a steel pipe and fins of an H-type coal economizer used for a boiler, belongs to the technical field of boiler manufacturing and solves the current problems existing in the welding of the steel pipe and the fins. The method for welding the steel pipe and the fins of the H-type economizer used for the boiler comprises the step of conducting friction welding to the multiple fins with the steel pipe simultaneously; the equipment for welding the steel pipe and the fins of the H-type economizer used for the boiler comprises two fin fixing dies, hydraulic telescopic devices, a motor driving system and a supporting device; the two fin fixing dies are arranged symmetrically, multiple grooves used for the fins to be inserted therein are formed in the inner surfaces of the two fin fixing dies correspondingly, the hydraulic telescopic devices are arranged at the outer sides of the two fin fixing dies respectively, the motor driving system is arranged at the outer side of one end of the two fin fixing dies, and the supporting device is arranged at the outer side of the other end of the two fin fixing dies. The method and equipment are used for welding of the H-type coal economizer.