468results about How to "Reduce welding process" patented technology

The invention discloses a device and method for replacing a track slab of a slab ballastless track. The device comprises a lateral sliding mechanism, a temporary support structure and traction equipment, wherein the temporary support structure is used for performing horizontal support on the lateral sliding mechanism; the traction equipment is used for driving a track slab which needs to be laterally moved to laterally slide on the lateral sliding mechanism; the lateral sliding mechanism is horizontally arranged on the temporary support structure; and the lateral sliding mechanism is erected above a base plate on which a damaged track slab is located through the temporary support structure. The method comprises the following steps of: I, moving up steel rails; II, moving up the damaged track slab; III, erecting the lateral sliding mechanism; IV, laying the damaged track slab flatwise; V, moving right the damaged track slab; VI, hoisting the damaged track slab away and lifting a new track slab; VII, moving left the new track slab; VIII, removing the lateral sliding mechanism; IX, installing the new track slab; and X, moving down the steel rails and mounting. The device for replacing the track slab of the slab ballastless track is reasonable in design, easy and simple in use and operation and good in using effect, and the method for replacing the track slab of the slab ballastless track can be conveniently realized, and can be used for efficiently, rapidly and simply completing the replacement process of the track slab of the slab ballastless track.

The invention discloses an efficient butt-joint laser welding method for a laminated duplex-metal composite material. The efficient butt-joint laser welding method comprises the steps that a base layer retaining layer is arranged at the portion, close to one side of a composite layer, of a base layer to form an I-type groove; the characteristic that in the laser penetration-type welding process, liquid metal at the upper portion and liquid metal at the lower portion inside a molten bath conduct Marangoni convection at the respective positions under the action of metal vapor friction and the temperature gradient, and little convection exchange happens between the liquid metal at the upper portion and liquid metal at the lower portion is used for being matched with the laminated characteristic of the laminated duplex-metal composite material, and the performance characteristics of two metal materials in a weld joint are ensured. The efficient butt-joint laser welding method has the advantages that one-time butt-joint welding forming of metal of the composite layer and some metal of the base layer is achieved, the working procedures of sealing and welding of a transition layer during a traditional composite board or composite pipe butt-joint welding are omitted, and the depth and the width of the remaining groove in the base layer are reduced, in other word, the welding amount of the base layer is reduced.

The invention adopts valve and flange integral forged formation, overcomes the defect in the prior art, and provides a technology for integrally forging a valve with a flange. In the technology, a valve and flange integral die forging mode is adopted, wherein a forging die is formed first, and then a forging machine is adopted for forging, so that once forming is achieved, a welding process is saved, the forging stream line of the valve and the whole performance are improved, and the nice appearance is achieved.

The invention relates to the technical field of welding, in particular to an aclinal self-upsetting, stirring and friction welding method and tool. The tool comprises a stirring head and a stirring needle, the stirring head is of a hollow structure, the stirring needle is rotatably arranged in the hollow structure of the stirring head and can stretch and retract in the stirring head, the axis of the stirring head and the axis of the stirring needle are overlapped, a shaft shoulder of the stirring head is provided with a forging boss, and the height of the forging boss is smaller than the height of the stirring portion left after the stirring needle extends out of the stirring head. In the whole welding process, a dip angle adjusting mechanism does not need to be arranged on equipment, complexity of the welding equipment is reduced, the angle between the shaft shoulder of the stirring head and a plane normal of a material to be welded is 0 degree, and accordingly aclinal stirring friction welding is achieved. When an aclinal stirring friction welding technology is adopted in two-dimensional plane welding, the angle of the stirring head does not need to be adjusted at a welding seam corner, welding procedures are reduced, meanwhile, the dip angle adjusting mechanism does not need to be arranged on the equipment, complexity of the welding equipment is reduced, and welding efficiency is improved.

The invention provides a novel stainless steel side wall structure and a mounting method of a novel stainless steel side wall. The novel stainless steel side wall structure comprises a side wall skeleton. The side wall skeleton is formed by connecting a plurality of cross beams and a plurality of vertical columns in a mutually-crossing mode, and the cross beams and the vertical columns are fixed through mutual inserting; end vertical columns are arranged on the left and right sides of the side wall skeleton correspondingly; door vertical columns are arranged on the left and right sides of doorframes correspondingly; a window upper cross beam is arranged on the upper portion of each window frame, and a window lower cross beam is arranged on the lower portion of each window frame; a waist cross beam is arranged below each window lower cross beam; three lower cross beams are arranged below each waist cross beam; a window upper vertical column is connected to each window upper cross beam;skeleton connecting plates are welded inside the connecting positions of the window upper cross beams and the window upper vertical columns in the side wall skeleton; window lower vertical columns are connected among each window lower cross beam, the corresponding waist cross beam and the three corresponding lower cross beams; and skeleton connecting plates are welded inside the connecting positions of the window lower cross beams and the window lower vertical columns in the side wall skeleton. The cross beams and the vertical columns of the novel stainless steel side wall structure are fixedthrough mutual inserting connection, the deformation problem caused by welding of a skeleton is solved, the production cost is saved, and the assembly production efficiency is improved.

The invention discloses an electrically operated valve, aiming at the problems that the elasticity of a stopping part for preventing a coil from being loosened corresponding to a valve body is low in the prior art; the technical proposal of the invention comprises a valve seat, a valve needle, the stopping part and a stepping motor which is composed of a rotor and a stator for driving the valve needle and the valve seat to joint or detach; the stopping part is fixedly connected with a stator coil box, and internally concave bending parts which are opposite are additionally arranged above externally convex bending parts on two arm parts extended downwards thereof respectively. As the two arm parts of the stopping part are respectively provided with two bending parts, higher elasticity is obtained under the condition of same deformation, the fixation is reliable and the working noise is low; the valve has the advantages of compact structure and good assembling operability; moreover, the vibration reduction is greatly improved for obtaining accurate flow control; therefore, the valve is particularly suitable for refrigerators, air conditioning refrigerating units, water heaters and dehumidifiers, thus realizing defrosting, the flow control and on-off control and the like of a heating system.

The invention discloses an aluminum honeycomb type evaporation plate and a processing molding method thereof. The evaporation plate adopts a high strength aluminum alloy plate and consists of an upper plate, a lower plate, an inlet pipe and an outlet pipe, wherein the two high strength aluminum alloy plates are overlapped and welded together by a solid-phase stir friction connecting method; the inlet pipe and the outlet pipe are inserted in the upper end and the lower end between the two high strength aluminum alloy plates and are connected with the high strength aluminum alloy evaporation plate body by using an electric arc welding method; and then the evaporation plate is finally molded through a mould and high-pressure bulging technology.

The invention relates to a connection structure of a cooling system of a refrigerating plant, in particular to the technical field of connection relations among liquid reservoirs and liquid dispensers and among the liquid dispensers and compressors of air-conditioning cooling systems. The connection structure comprises a liquid reservoir, a liquid dispenser and a compressor. The liquid dispenser comprises an air inlet tube, an upper end cover, a middle barrel, a lower end cover and an air outlet tube, the air outlet tube of the liquid dispenser is pressed into a cylinder hole of the compressor in an interference fit manner, and a first flange is sleeved between the air outlet tube and a shell of the compressor and is connected with the shell of the compressor and the air outlet tube by means of welding. According to the technical scheme, the connection structure has the advantages of convenience in machining, simple structure and the like.

The invention discloses a winding method suitable for a stator assembly of a z-slot 2p-grade m-phase motor. The stator assembly comprises a stator iron core and a stator winding, wherein the stator winding is made of flat wires. According to the winding method, a plurality of U-shaped conductor sections are configured and connected, so that a part of a stator groove is wound in the forward direction, then reverse winding is carried out, next, forward winding is carried out on the other part of the stator groove, and then reverse winding is performed circularly. Through the wave winding mode, the flat wire voltage difference between adjacent groove layers in the same groove is smaller than that of an existing scheme, so that the insulation breakdown risk of the motor can be effectively reduced, and the reliability is high.

The invention provides a variable-thickness automobile front bumper and a manufacturing method thereof. The automobile front bumper comprises a front bumper body which is of a thin-wall structure. The front bumper body sequentially comprises a left body section, a left transition section, a right body section, a right transition section and a right body section. A left energy absorption box and a right energy absorption box are arranged on the inner side faces of the left body section and the right body section of the front bumper body respectively, so that the front bumper body is connected with an automobile front longitudinal beam. The left body section and the right body section are of a uniform-thickness structure. The left transition section and the right transition section are of a continuous variable-thickness structure and become thinner gradually from the two ends to the middle body section. The middle body section is of a uniform-thickness structure and is the thinnest portion of the whole front bumper body. According to the variable-thickness automobile front bumper, by means of the design of parts of different thicknesses, the requirement for collision safety of the automobile front bumper is met, and the design of light parts can be achieved at the same time.

The invention discloses a method for sealing and fixing a cylindrical battery cell, a battery and a shell cover. The cell comprises a shell, the cover, a wound core and a sealing ring made of elastic materials; the wound core is provided with a positive electrode and a negative electrode, the shell is cylindrical and is provided with an opening positioned on the top of the shell, the cover is fixed to the opening, the cover and the shell form a closed casing, the wound core is sealed in the closed casing, the cover is provided with a first cylindrical matching portion, and the sealing ring is plugged into the opening and is tightly sleeved on the first matching portion; and the sealing ring is squeezed, then deforms and is in close fit with the opening, so that the cover and the shell are sealed and fixed. Compared with the prior art, the method has the advantages that a working procedure for sealing a cylindrical shell and a working procedure for welding a cover with a shell are omitted, and a process for manufacturing the cylindrical battery is simplified.

Cell-to-cell connection plates (1) each integrally having a welding part (2) shaped to fall within a circular end of a battery case (7) and a connecting part (2) extending from this welding part (2) are provided. The cell-to-cell connection plates (1) are attached to one electrode terminal and the other electrode terminal of the battery case (7) by welding the welding parts (2), respectively. The connecting parts (3) of the respective cell-to-cell connection plates (1) attached to each adjoining pair of cylindrical batteries (Ba) are overlapped with each other and coupled into electric connection. Consequently, regardless of whether a plurality of cylindrical batteries (Ba) are axially arranged in series or radially juxtaposed, each adjoining two can be connected to each other by using the identical cell-to-cell connection plates (1) for cost reduction. It is also possible to provide a sufficient heat dissipation effect and achieve sufficient robustness and weight saving even when connecting large-sized cylindrical batteries.

The invention discloses a secondary lithium battery which can effectively solve the problem of the exorbitant internal resistance of the existing secondary lithium battery. The secondary lithium battery comprises a negative terminal, a negative collecting ring, a rolled core, a positive collecting ring, a positive terminal, a cover plate and a casing, wherein the casing is provided with a accommodation cavity; the positive collecting ring, the rolled core and the negative collecting ring are successively connected from top to bottom in the accommodation cavity; the cover plate is arranged in the accommodation cavity on the negative collecting ring; the positive terminal is arranged on the bottom end of the casing; the positive terminal and the casing are manufactured as a whole; the positive terminal is connected with the positive collecting ring; the negative terminal is arranged on the cover plate on the top end of the casing; and the negative terminal is connected with the negativecollecting ring. The invention has the advantages that the whole product has smaller weight, and the positive terminal and the casing are manufactured as a whole, thus omitting the welding technologyand lowering the internal resistance of the battery and the production cost.

The invention relates to an automobile front hood hinge for articulating an automobile front hood with a front cabin bracket. The automobile front hood hinge comprises a fixing seat and a rotating arm, wherein, the fixing seat is hinged with the rotating arm through a hinge pin, and the hinge pin is composed of a pin shaft and a self-lubricating bushing; the rotating arm is equipped with a retaining arm, and the retaining arm is positioned right ahead of the vertical plate of the fixing seat when the hinge is in a closed status; the vertical plate of the fixing seat is equipped with a limit groove, the hinge board of the rotating arm is equipped with a limit boss, and the limit boss is positioned in the limit groove; and the fixing seat is equipped with a mounting bracket, and projection welding nuts are welded on the mounting bracket. The front hood hinge is durable and has better quality and stronger use function.

The invention provides a variable-thickness automobile roof middle cross beam. A roof middle cross beam body is of a thin-wall structure and sequentially comprises a left body section, a left transition section, a middle body section, a right transition section and a right body section. The left body section and the right body section are connected with an automobile side body column B and have a uniform thickness. The left transition section and the right transition section are of a continuous variable-thickness structure and become smaller in thickness from the two ends to the middle body section. The middle body section is the thinnest portion of the roof middle cross beam. According to the variable-thickness automobile roof middle cross beam, by means of the design that parts of different thicknesses are arranged along an automobile body in the Y axis direction, the safety requirements for collision resistance and pressure resistance of the roof middle cross beam are met, and the design of light parts can be achieved at the same time.

The invention provides a slip ring mechanism, which comprises a stator sleeve, a rotor shaft and a conduction module, wherein the stator sleeve is provided with an opening in the circumferential surface; the rotor shaft is arranged in the stator sleeve in a penetrating mode, and the rotor shaft is provided with a plurality of copper rings distributed in the axial direction; and the conduction module is arranged on the stator sleeve at the opening, the conduction module is provided with a brush wire array which is correspondingly in conductive contact with the plurality of copper rings, and theconduction module is also provided with a cable socket which is in conductive connection with the brush wire array. The slip ring mechanism is provided with the conduction module, the connection of brush wires and cables is realized through the conduction module, and the procedure of welding the brush wires and the cables is omitted, so that on the one hand, welding residues cannot be generated to influence sliding contact between the brush wire and the copper ring, the impedance between the brush wire and the copper ring is kept constant in use, the transmission of electric energy and signals is ensured to be stable; and on the other hand, the conduction module is provided with a cable socket, the cable is connected to the cable socket in use, and the operation is simple.

The invention discloses a connecting piece, a cover plate assembly, and a battery. The connecting piece comprises a body part, and at least one pole part arranged at one end of the body part, whereinthe other end of the body part serves as a connecting part connected with a tab of the battery, and the pole part is protruded out of the body part to serve as a pole of the battery. The connecting piece, the cover plate assembly and the battery provided by the invention have the advantages that the cover plate assembly can be connected with a battery core through the body part of the connecting piece; and the pole part can be used as the pole, so that additional poles need not be arranged on the cover plate assembly, the number of parts in the cover plate assembly can be decreased, and the corresponding mold cost can be reduced.

A miniature tricycle has a frame consisting of a main frame, a sleeve pipe for central axle and installed in main frame, and connecting mechanism of back axle, which is composed of guide part, connecting plate assemblage and vibration damper. Said main frame is composed of front pipe, lower pipes and vertical back pipe (or L-shaped or U-shaped frame), which are connected to become V-shaped, H-shaped, or U-shaped frame. Its advantages are simple structure and high stability.