33results about How to "To achieve the welding effect" patented technology

The invention discloses a one-dimensional nanomaterial welding method based on the electrically-induced heating effect. According to the method, a voltage of certain waveform and size is exerted through a probe electrode, and a one-dimensional nanomaterial is welded onto a base provided with an electrode. According to the method, by means of electrically-induced heating of the one-dimensional nanomaterial, the joint part of a conducting film on the base and the one-dimensional nanomaterial is partially and mutually melted so as to achieve the welding effect, and the bonding strength between the one-dimensional nanomaterial and the base is higher than 50nN. According to the method, the welding position of the one-dimensional nanomaterial can be selected and controlled accurately, welding spots are small, the accuracy is high, no other welding materials need to be introduced, samples cannot be polluted, and the method plays a key role in promoting development of nanoelectronics.

The invention relates to a welding method of ultra-thick and high-strength water-power steel, belonging to the welding field. Welding is realized by adopting a mixed welding mode, i.e. hand welding is adopted as a basis for filling the bottom, and gas shielded welding is adopted for a middle layer and a cover part, multilayer and multi-pass welding are adopted, a carbon arc is cropped out after asingle side is filled, and the input of welding heat is controlled within 65 kJ / cm. A welding bevel adopts an asymmetric U-shaped bevel, a thick steel plate of 145-155 mm is preheated to 100 DEG C before welding, the inter-layer temperature is kept between 100 DEG C to 160 DEG C, and heat treatment stress is not carried out after welding, and the problem of reheat embrittlement of a welding jointof the high-strength water-power steel is solved. The invention needs simple welding equipment, realizes welding through a combined welding process on the basis of the traditional equipment, reduces the filling amount of welding metal, and achieves the welding effect of a narrow gap. Compared with the hand arc welding, the invention greatly improves the welding efficiency of the thick steel plateand lowers the possibility of welding defects easily generated on the hand arc welding of an ultra-thick steel plate, such as cold cracks, incomplete fusion, crisp fusion, and the like.

The invention relates to mechanical equipment, in particular to automatic production equipment for manufacturing piston rod assemblies of shock absorbers. Flexible manufacturing equipment for piston rods of automobile shock absorbers comprises an automatic welding machine used for achieving welding operation, a lifting ring feeding mechanism used for conveying lifting rings, a dust cover feeding mechanism used for conveying dust covers, a piston rod feeding mechanism used for conveying piston rods, and a feeding manipulator used for conveying the dust covers and the piston rods to the automatic welding machine. According to the flexible manufacturing equipment for the piston rods of the automobile shock absorbers, in the automatic production process of the piston rod assemblies of the shock absorbers, automatic conveying of the lifting rings is achieved through the lifting ring feeding mechanism, automatic conveying of the dust covers is achieved through the dust cover feeding mechanism, automatic conveying of the piston rods is achieved through the piston rod feeding mechanism, and one-time welding formation of the lifting rings, the dust covers and the piston rods is achieved through the automatic welding machine.

The invention relates to a sheet welding deformation control device. A welding platform (9) is provided with a rotating hole; a rotating guiding column (11) is arranged in the rotating hole; the upper end of the rotating guiding column (11) is connected with a welding station lining plate (8); the welding station lining plate (8) is connected with a red copper base plate (7); two sets of welding clamping devices are arranged on the welding platform (9); each welding clamping device comprises a fixed arm (1); the fixed arm (1) is connected with an adjusting sleeve (1a); a horizontal adjusting arm (3) is connected in the adjusting sleeve (1a); and an air cylinder (4) and a ballast plates (6) are connected on the adjusting arm (3). The sheet welding deformation control device has the advantages that: the good heat dissipation performance of the red copper base plate is fully utilized, thus the base plate welding effect is achieved, the welding deformation can be controlled to the maximum extent, and the flatness of the welded sheet is guaranteed; and in addition, the air cylinder is used for clamping rigidly, so that the operation is very convenient, and the work efficiency is improved greatly.

The invention provides a spiral diffuser nozzle, which includes a nozzle body; the nozzle body includes a cylindrical upper part and a conical lower part; the inner wall of the conical lower part is provided with a plurality of spiral splines, the helix angle of the spiral splines is constant, and the gap between the spiral splines The pitch of the thread decreases linearly from top to bottom. The cross-sectional shape of the spiral spline is an isosceles trapezoid, and the height of the isosceles trapezoid in the cross-section of the spiral spline decreases linearly from top to bottom. During the welding process, the shielding gas passes through the nozzle body under the action of the welding torch, and the shielding airflow forms a spiral diffused airflow under the action of the spiral spline, which acts on the surface of the molten pool to protect the internal arc combustion stability and isolate the air The purpose of impurities. The invention is compact in structure and easy to use. During the welding process, it can improve the ability of shielding gas to resist crosswinds, expand the coverage of shielding gas, reduce the amount of shielding gas, and improve the surface quality of welds. It can meet the requirements of general production sites or large crosswinds, etc. Use in special environment.

The present invention relates to mechanical equipment, and more specifically to an automated production equipment for manufacturing a shock absorber piston rod assembly. Fully automatic welding equipment for the shock absorber piston rod assembly, including: an automatic welding machine for welding operations, a lifting ring feeding mechanism for conveying lifting rings, a dust cover feeding mechanism for conveying dust caps, and a piston rod conveying The piston rod feeding mechanism is used to transport the dust cover and the piston rod to the loading robot of the automatic welding machine. The fully automatic welding equipment for the shock absorber piston rod assembly of the present invention, during the automated production process of the shock absorber piston rod assembly, uses the lifting ring feeding mechanism to realize automatic transportation of the lifting rings, and uses the dust cover feeding mechanism to realize automatic transportation of the dust cover , the piston rod feeding mechanism is used to realize automatic transportation of the piston rod, and the lifting ring, dust cover and piston rod are welded and formed at one time using an automatic welding machine.

The invention relates to the technical field of building, and discloses a lead screw and base automatic butt welding device for building. The lead screw and base automatic butt welding device comprises a work box. The bottom of an inner cavity of the work box is fixedly connected with a motor seat. A motor is fixedly mounted at the top of the motor box. An output shaft of the motor is fixedly connected with a rotating rod penetrating and extending to the outer side of the top of the work box. First supporting rods are fixedly connected to the end, located in the work box, of the rotating rod.A circular ring is fixedly connected to the bottom of the inner cavity of the work box. A first annular sliding groove is formed in the top end of the inner surface of the circular ring. According tothe lead screw and base automatic butt welding device for building, through the arrangement of the motor, a first disc, second discs and a butt welding spray head, after the motor works normally, thefirst disc is driven to rotate, then the second discs are driven to move, then the butt welding spray head welds the corresponding base and lead screw connecting portions, and therefore the effect ofwelding bases and lead screws is achieved, and then the automatic welding effect is achieved.

The invention relates to the technical field of circuit board processing, and discloses a device for preprocessing circuit boards by using thermal conductivity, including a support frame, the inside of which is movably connected with a tin liquid tank through a telescopic rod, and the tin liquid tank The inside is fixedly connected with a shell, and the inside of the shell is movably connected with a drill bit. On the surface of the shell and on both sides of the drill bit, there are inlets. The lower part of the inlet is movably connected to a tin injection mechanism. The tin injection mechanism includes a spring and rotates At the same time, a whirlwind centered on the drill bit will be generated. The whirlwind will drain the liquid tin in the tin liquid tank through the liquid flow channel in the screw. In addition, due to the friction between the two, a certain amount of heat will be generated, and the liquid tin will flow to the circuit. Around the drilled hole, under the action of heat generated by friction, it will not solidify in a short period of time. During this time, the instrument to be installed can be bonded to the surface of the circuit board, thus achieving the effect of welding while the drilling is completed.

The invention provides an outer edge welding device for hydraulic cylinder manufacturing, which relates to the technical field of hydraulic cylinder welding and includes an installation support part; two sliding adjustment parts are installed on the installation support part; The structure is the same; a movable jamming device is slidably connected to the installation support part; an elastic positioning device is fixedly connected to the movable jamming device; Shape swing welding, the welding is firmer and the overall linkage is stronger, which can realize auxiliary smoke removal and cleaning work; it solves the problem that the overall installation accuracy of the outer edge welding device manufactured by the current hydraulic cylinder is low, and the welding is not stable enough to achieve simultaneous rotation welding. At the same time, it is impossible to realize flexible welding seam adjustment, which affects the welding quality. At the same time, arc swing welding cannot be realized, and swing adjustment is not convenient enough.

The invention discloses an electromagnetic welding method for pre-laid anti-adhesive waterproof coiled material. The pre-laid waterproof coiled material includes a base material layer made of polyethylene, including: 1) matching the pre-welded waterproof coiled material with the pre-paved waterproof coiled material The gasket is fixed on the substrate, and the gasket is composed of a matrix resin layer and a metal wire inlaid on the upper surface of the matrix resin layer; in terms of mass percentage, the raw materials of the matrix resin layer include: polyethylene 5-30%, polyethylene Propylene 5-30%, ethylene-propylene copolymer 20-50% and ethylene-octene copolymer 20-50%; 2) Lay the pre-laid waterproof membrane on the substrate, so that the pre-laid waterproof membrane and the gasket are attached Then align the electromagnetic welding torch and press it on the pre-laid waterproof membrane at the position of the gasket, and start welding. The invention can quickly fix the pre-laid waterproof membrane on the substrate, and the operation is simple and controllable. It has good performance and firm welding, and also avoids the problem of later leakage caused by nailing and other fixing methods in the prior art.

The invention discloses a control method and device for arc energy and a computer readable medium. The control method for the arc energy includes the steps that a welding joint form is obtained; the arc position and the welding power source output synchronous mode are determined based on the obtained welding joint form; and output currents of a welding power source are controlled in real time based on changes of the determined synchronous mode and the determined arc position. By the adoption of the above scheme, the output currents of the welding power source are controlled in real time basedon the synchronous mode and the arc position, the heat input amount in the arc swing process can be controlled in real time according to the arc position, the expected welding effect can be achieved,in addition, the heat input amount of the arc can be small as much as possible, and therefore a welding connector with better quality is obtained.