12results about How to "Guaranteed welding strength" patented technology

This utility model relates to the field of battery cell technology and discloses a novel soft-pack PACK structure, including a housing. A cover is fixedly connected to the outer wall of the housing, and a sealing ring is fixedly connected to the inner wall of the cover. A support is installed inside the housing, and an epoxy board is fixedly connected to the outer wall of the support. Copper-aluminum composite busbars are installed on the left and right outer walls of the epoxy board, with threaded rods threaded into the interior of the copper-aluminum composite busbars. An aluminum busbar is fixedly connected inside the epoxy board, and a pressure strip is provided on the outer wall of the aluminum busbar. In this utility model, the housing and cover house the battery cells to protect them from external impact damage. An epoxy board is placed on the side of the support, and then an aluminum busbar is installed inside the epoxy board. A pressure strip is then fixed to one side of the aluminum busbar, and a data acquisition line is placed between the pressure strip and the aluminum busbar. This achieves the effects of ensuring battery cell overcurrent, welding strength, and stable data acquisition.

This invention relates to a welding apparatus and method for nickel wire mesh in an alkaline water hydrogen production electrolytic cell. The apparatus includes a laser welding machine, a wire feeder, and a rotating platform, as well as an adjustable support, a laser welding torch, a wire feeding nozzle, a wire feeding tube, and a mesh pressing mechanism. The laser welding machine has a built-in laser welding torch, and the wire feeder has a built-in wire feeding tube and a wire feeding nozzle. The wire feeder contains welding wire, one end of which passes through the wire feeding tube and the wire feeding nozzle before extending out. The end of the welding wire is positioned above the edge of the nickel wire mesh but does not contact it. The adjustable support houses the laser welding torch, and a connecting ring is provided between the laser welding torch and the wire feeding nozzle. The end of the laser welding torch is positioned above the welding wire, and the focal center of the laser beam emitted from the end of the laser welding torch is located on the welding wire. The adjustable support can also be adjusted to connect a mesh pressing mechanism for pressing the edge of the nickel wire mesh. This invention arranges the welding wire above the edge of the nickel wire mesh, and the welding wire melts and drips onto the edge of the nickel wire mesh when heated, facilitating welding without melting the nickel wire mesh.

This invention provides a welding device for foundation pit retaining construction, relating to the field of foundation pit reinforcement mesh welding technology. It includes a welding clamp with a welding section mounted on it. The welding section is used to improve the lap joint accuracy of the reinforcing bar ends. A vertical reinforcement limiting component is mounted on the welding section, which limits the spacing of the vertical reinforcement bars. An anti-bending support is mounted on the welding clamp. A lower weld protection component is mounted on the welding section. Welding guides are mounted on the welding clamp and the welding section. This addresses the problems of current foundation pit retaining construction welding devices, which make it inconvenient for workers to first clamp the horizontal reinforcing bar ends before performing double-sided welding, and also make it inconvenient to check the lap joint accuracy of the horizontal reinforcing bar ends.

The steel pipe truss comprises a concrete prefabricated bottom plate (1) and an upper chord steel pipe (2), the left side and the right side of the upper chord steel pipe (2) are each in an arc shape, the upper ends of the arcs on the left side and the right side are connected to form an upper straight line section, the lower ends of the arcs on the left side and the right side are connected to form a lower straight line section, and the lengths of the upper straight line section and the lower straight line section are both 15-80 mm; the prefabricated concrete bottom plate further comprises a web member (3), the web member (3) is formed by continuously bending a hollow steel pipe into a wave shape, the wave crest of the wave-shaped web member (3) is welded to the bottom face of the lower linear section of the upper chord steel pipe (2), and the wave trough part of the wave-shaped web member (3) is buried in the prefabricated concrete bottom plate (1). The hollow web member is creatively welded with the straight section at the bottom of the upper chord steel pipe, and the thickness of the steel plate at the lower straight section of the upper chord steel pipe is increased, so that the defect can be better avoided, and the welding strength is ensured.

The application relates to the technical field of welding materials, in particular to a continuous oil pipe butt welding gas protection solid core welding wire and a welding method; the chemical components of the solid core welding wire include the following: C: 0.08%-0.14%, Si: 0.2%-0.3%, Mn: 0.7%-1.0%, Ni: 0.15%-0.25%, Cu: 0.25%-0.35%, Cr: 0.5%-0.7%, Mo: 0.10%-0.15%, Nb: 0.02%-0.03%, Ti: 0.01%-0.02%, and the rest is Fe and inevitable impurities; by adopting low-carbon components, the fatigue performance of a weld is reduced, then the Mn, Ni, Mo, Cr and Cu systems are adopted, and i and Nb trace elements are added at the same time, so that the solid solution strengthening, fine-grain strengthening and precipitation strengthening methods can be comprehensively utilized to improve the strength of the weld, the hardenability of the weld metal is improved, the generation of bainite is promoted, the toughness and strength of the metal weld are improved, and therefore the fatigue resistance of a pipe-pipe butt welding joint is comprehensively improved.

The present application relates to thin film deposition equipment technical field, disclose a shower head and its processing method, the shower head includes: cover plate has the through hole, the through hole includes first hole section and second hole section;Spray plate is provided with connecting column, connecting column includes thread section and base section;Connecting sleeve, including sleeve, sleeve is matched on the outside of thread section;First sealing structure, between the sleeve and the one end of thread section away from base section, the first sealing structure seals the sleeve and thread section.The present application is matched by the sleeve and connecting column thread connection, realize the connection of cover plate and spray plate, the consistency of thread cooperation is higher than welding, can effectively improve the connection precision, in addition, realize the process of connection without using welding and so on heating means, therefore can avoid the deformation of connecting column and so on connecting structure, in addition, still set up the first sealing structure, the first sealing structure can guarantee the sealing performance between connecting sleeve and connecting column, simple structure, convenient operation.

The utility model relates to the field of wiring harness processing especially, relate to a tin soldering equipment convenient to use, including bottom plate and fixedly set up the support on bottom plate, still include mounting bracket, soldering iron and positioning tooling, the mounting bracket can be relative the support up and down movement, the soldering iron with mounting bracket detachable fixed connection, positioning tooling fixedly set up on bottom plate, and positioning tooling below the soldering iron, the upper surface of positioning tooling is provided with the soldering tin placement groove and raw material placement groove that cross each other perpendicularly, and the intersection position of soldering tin placement groove with the principle placement groove still is provided with the solder forming groove.

The utility model relates to photovoltaic module manufacturing technical field, more particularly to a kind of BC component tin paste printing screen and printing device.The BC component tin paste printing screen, including screen version body and the printing pattern being set on the screen version body;The printing pattern includes several mutually separated openings;The shape of the opening is the closed pattern with long axis and short axis.The BC component tin paste printing screen can reduce the usage amount of tin paste, improve module power, reduce the risk of soldering, hidden crack.

The utility model relates to the field of batteries, and discloses a bottom shell and a cylindrical battery. The bottom shell comprises a bottom plate and a first annular reinforcing rib, and the first annular reinforcing rib is arranged on the edge of the bottom plate. The side, facing the bottom plate, of the first annular reinforcing rib protrudes to form a welding face, and the welding face is obliquely arranged relative to the plane where the bottom plate is located. The bottom shell provided by the utility model is provided with the first annular reinforcing rib, the first annular reinforcing rib is arranged at the edge of the bottom shell, the welding area is increased, the welding strength is ensured, and the extension mode of the welding surface enables the welding surface to be matched with the inclination angle of a tab or a collector piece; therefore, it is guaranteed that the bottom shell can be effectively attached to the electrode lug or the current collecting piece in the laser penetration welding process, the situations that explosion welding, gas leakage, the penetration depth and the penetration width do not meet the requirement and even welding cannot be conducted are avoided, the reliability of the welding quality is guaranteed, the penetration welding print diameter is increased, and the battery overcurrent capacity is improved.

This invention relates to the field of welding equipment technology, specifically to a mobile welding device for angle steel tower feet, comprising: a welding platform; a primary clamping chuck for the tower foot, rotatably mounted on the welding platform for supporting and clamping the angle steel tower foot blank; and a secondary clamping welding workpiece for the tower foot, positioned above the primary clamping chuck. The secondary clamping welding workpiece includes a support portion capable of vertical movement and multiple first clamping heads disposed on the support portion, each first clamping head corresponding to a vertical weld position on the angle steel tower foot blank. By providing multiple clamping heads, this application can provide circumferential clamping for the angle steel tower foot blank, making the clamping more stable. Combined with a robotic arm driven by a second hydraulic cylinder and a first pneumatic cylinder, the originally manually controlled and highly unstable vertical weld process is transformed into a more stable, automated mechanical welding operation, significantly reducing the operational difficulty.

The application relates to the technical field of batteries and discloses a battery cell and a battery pack. The battery cell comprises a shell with an open end, and the end face of the open end is a first end face; a cover plate assembly is arranged at the open end of the shell, and the cover plate assembly comprises a cover plate, the cover plate comprises a cover plate body, a reinforcing ring part and a lap joint ring part, the reinforcing ring part is connected to the outer circumferential side of the cover plate body in a surrounding manner, the upper surface of the reinforcing ring part is provided with a groove, the lower surface of the reinforcing ring part is provided with a convex rib corresponding to the groove, the convex rib extends into the inner cavity of the shell and is in gap cooperation with the side wall of the shell, and the lap joint ring part is connected to the outer circumferential side of the reinforcing ring part in a surrounding manner and is lapped on the first end face; the size of the bottom wall of the groove along the ring width direction of the reinforcing ring part is w1, and the recess depth of the groove along the up-down direction is h3, wherein the relationship between w1 and h3 satisfies the formula: 0.3 <= w1 / h3 <= 0.8. On the basis of strengthening the structural strength of the cover plate, the material cost and the weight of the battery cell are reduced, and the battery cell is lightened.

The present application relates to a kind of new energy pipeline and the connecting structure of joint, including TPV double-layer pipe connecting structure and TPV single-layer pipe connecting structure;The TPV double-layer pipe connecting structure includes TPV double-layer pipe, linear joint, adapter and non-linear joint, its composition linear connection configuration and non-linear connection configuration, the TPV single-layer pipe connecting structure includes TPV single-layer pipe and single-layer pipe joint, the TPV single-layer pipe is inserted into single-layer pipe joint, both are fixed from outside laser welding, its connecting method, including: mode one, the linear connection configuration of TPV double-layer pipe connecting structure, is connected using the way of laser rotary inner welding;Mode two: the non-linear connection configuration of TPV double-layer pipe connecting structure, is connected using the way of laser rotary outer welding;Mode three: TPV single-layer pipe connecting structure is connected using the way of laser rotary outer welding, the advantage of the present application is that TPV pipeline and joint welding form complete integrated structure, improve the connectivity and sealing property.