227results about How to "Improve welding yield" patented technology

A aluminum alloy air-cooled freezing-plate sealing shaping process includes the following steps: 1. processing the appearance of freezing-plate, dissipating heat fins and cover plate parts according to structure design, the structure design of freezing-plate is flush type cavity structure, the two ends of freezing-plate shell is equipped with 2-3 soldering fabrication holes with diameter of 2-3mm; 2. welding the dissipating heat fins and freezing-plate shell, cover plate through the soldering method in nitrogen protection furnace; 3. milling out printed circuit board slots on the freezing-plate shell; welding the cover plate and shell vertical soldering seam through stirring friction welding; 5. mechanical processing the appearance and two end ventilators of freezing-plate according to the drawings requirements, processing the soldering fabrication holes into two end ventilators. The aluminum alloy freezing-plate using the art method of combination of soldering and stirring friction welding in the invention increases the resistant finely processed capacity of brazing seam surface, ensures the hermeticity requirement after finely process aluminum alloy freezing-plate and increases the welding yield rate of electronic structure cabinet.

The present invention discloses a connector core wire automatic welding device and a welding method therefor. The device comprises a rack, an X-axis operating line arranged on the rack and a Y-axis operating line arranged on the rack; according to a process sequence, the X-axis operating line is sequentially provided with a fixture conveying module, an overturning and positioning module, a fixture shifting module, a fixture positioning module, a welding module, a fixture reflowing module, and a fixture discharging module; according to a process sequence, the Y-axis operating line is sequentially provided with a connector feeding module, a connector shifting module, and a tray unloading module; and the Y-axis operating line includes first and second Y-axis operating lines which are parallel to each other and charge and discharge materials through branch pipes. According to the device, the core wire and connector feeding and the combination welding at the welding module are realized through the X-axis operating line and the Y-axis operating line; an empty tray from which all connectors are taken out is output by the second Y-axis operating line; a fixture is automatically discharged by the fixture discharging module; and full-automatic assembling and welding of connectors and core wires are ingeniously realized, thereby greatly improving the welding efficiency and reducing the machining costs.

The invention discloses an automatic cell welding machine for a small solar component. The automatic cell welding machine comprises a conveyor belt and a cell separation mechanism, which are sequentially connected along the feeding direction of a solar cell component. The automatic cell welding machine also comprises a welding strip conveying mechanism, a first suction mechanical hand, a welding mechanism, a second suction mechanical hand and a placement output mechanism. According to the automatic cell welding machine for the small solar component, the solar cell component is separated into independent solar cells through the cell separation mechanism, and a welding strip is welded on the back surfaces of the solar cells through the welding mechanism to connect electrodes of circuits in the solar cells. A staggered cell separation mode is adopted, so that the automatic cell welding machine is easy to operate, the production efficiency and the welding yield can also be improved, the labor intensity can be reduced, and the problems of high breaking rate of manual cell separation of the conventional small cell component, high pseudo welding rate and high component damage rate of the small component and high industrial accident rate are solved.

The invention discloses an automatic welding work station of a battery module. The automatic welding work station comprises an assembly line for conveying a battery module to be welded, and a laser washing device, at least one laser welding device and an after-welding detection device which are arranged in sequence along an operation direction of the assembly line, wherein the laser washing deviceis arranged beside the assembly line and is located at an entrance of the assembly line; the laser washing device is used for carrying out laser washing on the battery module to be welded; the laserwelding devices are symmetrically arranged at two sides of the assembly line, are located between the laser washing device and the after-welding detection device and are used for welding a battery cell electrode column on the battery module and a module bus bar; the after-welding detection device is arranged at two sides of the assembly line and is located at one end far away from the laser washing device; the after-welding detection device is used for detecting whether the quality is qualified or not after welding is finished. Compared with traditional module welding equipment, the automaticwelding work station has the characteristics of relatively high automation degree, working efficiency, welding yield and the like.

The invention provides a current collector and application thereof. The first aspect of the invention provides a current collector. The current collector comprises M metal layers and N polymer layers,the metal layers and the polymer layers are stacked, L metal layers comprise tab connecting areas and non-tab connecting areas, the thickness of the tab connecting areas is greater than that of the non-tab connecting areas, and M is greater than or equal to 1, N is greater than or equal to 1, L is greater than or equal to 1, and M is greater than or equal to L. According to the current collectorprovided by the invention, the tab connecting areas for connecting the tab on the metal layer is thickened, so that the welding strength of the tab is effectively improved, the binding force of the tab and the current collector is improved, the contact impedance of the tab connecting region is reduced, and the connecting yield of the tab and the metal layer is improved.

The invention discloses a circular seam welder for automobile wheels. The circular seam welder comprises a welder body, a workbench arranged in the welder body, a rotatable workpiece clamping device arranged on the workbench and at least two welding guns, wherein the welding guns are uniformly arranged on the workbench around workpieces. Because the at least two welding guns are arranged, the welding efficiency is greatly improved. In addition, due to the introduction of a workpiece compacting and swelling component, the deformation of the wheels in the welding process is also greatly reduced, and the welding effect is also remarkably improved.

The invention relates to the field of automobile manufacturing devices, in particular to a car lock lug welding fixture. By the car lock lug welding fixture, the problem that an existing lock lug welding fixture is insufficient of space for arrangement is solved. A plurality of positioning seats (4) are arranged on a rectangular welding fixture platform (1), a lug clamping unit is arranged on each positioning seat (4), each lug clamping unit comprises a lug clamping cylinder (5), a lug positioning cylinder (6) and a wedge mechanism (7), each lug positioning cylinder (6) is connected with the corresponding wedge mechanism (7) and drives the same to move horizontally, and wedges (18) can be driven to move by being connected with the corresponding lug clamping cylinders (5). The car lock lug welding fixture is used for welding automotive lugs.

The invention discloses an automobile air conditioner compressor hollow piston, which comprises aluminum alloy prepared from the following ingredients in percentage by weight: 11 to 13 percent of Si, 3.5 to 4.5 percent of Cu, 0.2 to 0.5 percent of Mg, 0.8 to 1.5 percent of Ni, 0.1 to 0.3 percent of Cr, 0.1 to 0.3 percent of C, 0 to 0.1 percent of Mn, 0 to 0.5 percent of Zn, 0 to 0.15 percent of Ti, 0.1 to 0.3 percent of RE and the balance Al. The invention also provides a production method of the automobile air conditioner compressor hollow piston. Through the selection and the control on elements in the aluminum alloy for the hollow piston, the intensity and the hardness of the piston are improved; through further improvement on the laser welding process, the welding seam fine porosity rate is reduced, the welding tension is enhanced, and the welding quality is improved, so the use performance of the hollow piston is improved, and the service life of the hollow piston is prolonged.

The invention is suitable for the technical field of connectors, and provides a USB TYPE-C puncture-type connector and a processing method therefor. The connector comprises an iron housing, a connection rubber core, a main body rubber core, a resistor, and PINs. The PINs are divided into two rows: A and B, wherein a resistor is connected between two PINs in the row A. The connection rubber core is clamped on the main body rubber core. The iron housing is disposed on the main body rubber core, and covers the connection rubber core. The PINs are embedded on the main body rubber core. The two PINs connected with the resistor are respectively provided with a welding piece, and the resistor is fixedly welded on the welding pieces, thereby enabling the resistor and the two PINs to be connected. According to the invention, the connector enables the resistor to be directly welded with the two PINs in a fixed manner to form an electric condition circuit. The connector is simple in processing technology, is low in cost, is high in machining efficiency, is high in welding yield, and is high in application value and market prospect.

The invention discloses a self-restrained explosive welding device with a high energy utilization rate. The device comprises one or more double-side explosive welding combinations and a single-side welding combination. When explosives blast, the whole device is in a self-restrained state, movement of all composite plates is limited mutually, the hot potato that composite plates fly apart during double-side explosive compositing is perfectly solved, and the safety of field operation is improved. Compared with traditional explosive welding method, explosive energy utilization is more reasonable, the explosive using amount is greatly reduced, the cost is reduced, meanwhile, shockwave energy transmitted to air is reduced, and the noise pollution is remarkably reduced. In addition, the designed device can composite the multiple composite plates on one foundation at a time, and the explosive field can be saved, and the working efficiency can be improved.

The invention discloses a liquid-cooling cold plate, which comprises a liquid inlet connector, a liquid outlet connector, an upper cover plate, frame strip seal, fins, pad blocks and a bottom board, wherein the pad blocks and the fins are arranged in the frame strip seal; the upper cover plate and the bottom board are connected to the two sides of frame strip seal through vacuum brazing to form a sealed heat exchange cavity; the two sides of the pad blocks are connected with the upper cover plate and the bottom board through vacuum brazing respectively; the liquid inlet connector and the liquid outlet connector are connected with the upper cover plate through vacuum brazing; and the inner side surface of the frame strip seal or/and the outer side surfaces of the pad blocks contacted with a heat exchange medium are respectively provided with a groove. The liquid-cooling cold plate is simple in structure, low in cost, high in heat exchange efficiency, good in brazing process, high in welding finished product rate, more beautiful in appearance, small in flow dead zone and good in temperature uniformity.

The invention provides a novel silver copper diffusion welding method and a welding device used by same. The method and the welding device can integrally weld a plurality of thin plates or micro radiating graphics by a heat sink manner, have the advantages of being simple in method, high in welding yield, good in welding quality and good in reliability, and are mainly applied to water-based heat sink in refrigerating of a power type electronic element, a laser or an optical gain medium and mass production of bases.

A manufacturing method of a chip packaging structure comprises the steps that a loading plate is provided, a first conductive line layer, a first dielectric layer and a second conductive line layer are successively formed at one side at least of the loading plate, and the first conductive line layer is connected with the second conductive line layer via first conductive poles; a second dielectric layer is formed at one side, far from the loading plate, of the second conductive line layer, openings of the second dielectric layer are formed in the second conductive dielectric layer, and form second conductive poles via electroplating, the second conductive line layer is electrically connected with the second conductive poles, and the surfaces, far from the first dielectric layer, of the second conductive poles are approximately leveled with the surface, far from the first dielectric layer, of the second dielectric layer; and the loading plate is removed, and a chip is welded to form the chip packaging structure. The invention also relates to a chip packaging substrate and structure.

The invention discloses a packaging method of a chip of a phase change memory. The method comprises: a chip that needs to be packaged is fixed in a packaging shell; an ultrasonic bonding technology is utilized to enable electrodes of the chip and pins of the shell to be connected one by one; and then, a shielding cover is used to enable the chip to be isolated from the outside world. According to the invention, because ultrasonic bonding does not need a critical bonding temperature, packaging on a chip can be carried out at a normal temperature, so that there is no influence on a characteristic of the chip itself of the phase change memory. When bonding is carried out, no current is added and no fusing is carried out; there is no effect on physical and mechanical performances of materials; no compound is formed to influence the performance of the chip; the cleanness of the chip can be maintained; and packaging can be directly carried out without tedious cleaning processing, so that testing demands of good stability, high precision and good repeatability can be met.

A welding head for connecting weld members by resistance welding includes an infeed cylinder having a piston rod, an electrode movable via the cylinder; and a sensor arranged between the piston rod of the infeed cylinder and a readjusting spring for the rapid readjustment of the electrode. The sensor is clamped in place between contact means in a sleeve-shaped or tubular drive shaft mounted in a housing.

The invention discloses a method for solving welding deviation and welding equipment thereof. The method comprises the steps of employing a CCD device to shoot a workpiece image, and judging a position deviation value between an actual workpiece image and a standard workpiece image; if no position deviation exists, starting welding; and if the position deviation exists, compensating the position deviation value by moving a welding head or a workpiece fixing device, and then starting the welding. Therefore, the problem that deviation exists between a welding area of the workpiece and the welding head due to the fact that positioning is conducted through appearance of the workpiece traditionally can be effectively eradicated; and a high aligning rate of workpiece welding can be ensured, so that the welding yield of the workpiece is further improved.

The invention discloses a method for improving the welding performance of a copper surface heat sink for a packaging shell after gold plating. The method comprises the following steps of putting the shell into an alkaline oil removal solution to be cleaned; putting the shell into a pickling solution for cleaning; putting the shell into an etching solution for treatment; putting the shell into a pickling solution for cleaning; putting the shell into an activation solution for pre-plating activation; electroplating a layer of thin nickel on the surface of the shell; electroplating a layer of thick nickel on the surface of the shell; electroplating a layer of thick gold on the surface of the shell; and carrying out high-temperature drying treatment on the washed shell by using a high-temperature blast drying box. According to the invention, etching before plating is carried out on the copper surface heat sink for the packaging shell, etching liquid is corroded along a grain boundary, so that a lattice pattern shape is formed on the copper surface, and after nickel plating and gold plating are subsequently carried out on the basis, the welding performance and the welding yield of the surface of the copper surface heat sink are greatly improved; the etching solution corrodes along the grain boundary, other areas of the copper surface and other materials of the shell are not damaged,and the etching time range is large.

The invention provides an electrode plate and an application thereof. A first functional surface of a current collector in the electrode plate comprises a first active layer area and a first tab area, and a second functional surface of the current collector comprises a second active layer area opposite to the first active layer area and a second tab area opposite to the first tab area. The active layer is arranged in the first active layer area and/or the second active layer area; n through holes penetrating to the second tab area are formed in the first tab area, a T-shaped tab passes through the through holes, one end of a first section of the T-shaped tab is connected with the first tab area to form a first connecting area, and the other end of the first section of the T-shaped tab is connected with the first tab area to form a second connecting area; the second section of the T-shaped tab is connected with the second tab area to form a third connecting area, and N is greater than or equal to 1; and the current collector comprises a first conductive layer, an insulating layer and a second conductive layer which are stacked. The lithium ion battery prepared from the electrode plate has relatively high mass energy density and safety performance.