77results about How to "Improve welding strength" patented technology

The invention provides a hydraulic servo oil cylinder trunnion positioning and repairing method and a positioning device, which are used for carrying out in-situ welding and repairing on a fractured oil cylinder trunnion, and the method comprises the following control conditions: (1) heating an oil cylinder barrel before welding and carrying out heat preservation on the oil cylinder barrel after welding; (2) the tensile strength of the selected welding rod is higher than that of an oil cylinder barrel matrix; and (3) the welding rod is baked and heated before welding.

The utility model relates to a steel pipe truss component and a floor system applying the same, and belongs to the field of building structures. The steel pipe truss member comprises a concrete prefabricated bottom plate, an upper chord steel pipe and a lower single continuously-bent web member arranged in the length direction of the upper chord steel pipe. The web member is a hollow pipe, the whole web member is in a sine wave shape, the upper surface of the top bent position of the web member is welded to the upper chord steel pipe, and the bottom bent position of the web member is embedded in the concrete prefabricated bottom plate. The upper surfaces of the bent positions of the bottoms of the web members are sunken downwards to form containing grooves, and the containing grooves are used for containing embedded steel bars in the concrete prefabricated bottom plate. The connecting structure is simple in structure and convenient to install, the connecting strength of the steel pipe truss and the floor prefabricated bottom plate is improved, and the stability of the whole structure is enhanced.

The application discloses a kind of FPC temperature acquisition structures, including the temperature acquisition component of connecting aluminum-based FPC, temperature acquisition component includes integrally injection-molded temperature acquisition shell and conductor structure, temperature acquisition shell includes temperature acquisition part with temperature sensor and positioning part with connecting window, conductor structure is formed by copper material connecting piece and aluminum material connecting piece composite Copper material connecting piece is extended to temperature acquisition part and connected with temperature sensor, and aluminum material connecting piece is welded with aluminum-based FPC at connecting window position, the combination of same metal is better, welding strength is high and contact area is large, improve electrical contact performance, so that temperature information collected by temperature sensor can be reliably transmitted to FPC product, this conductor structure is designed using copper-aluminum composite structure, with high bonding strength, excellent conductivity and thermal conductivity, easy to weld, low contact resistance characteristics, can meet the welding requirements of conductor structure and aluminum-based FPC, also can reduce production cost, improve product performance.

The utility model discloses an ultrasonic unit puncture welding tool, including ultrasonic generator and cylinder, the ultrasonic generator is fixed on aluminium box, the bottom surface of aluminium box is installed with guide rail, the piston rod of cylinder is connected with aluminium box, the cylinder pushes aluminium box and does reciprocating motion on guide rail, the guide rail is installed on the shell, the ultrasonic generator and female welding head are linked, two sub welding heads are set up on female welding head and extend, two sub welding heads are arranged parallel to each other, and every sub welding head is in flat shape to penetrate material and weld. The ultrasonic unit puncture welding tool provided by the utility model adopts ultrasonic generator to cooperate with sub female welding head, and high frequency vibration energy is applied to the surface of the material to be welded. Not only the welding speed is fast, and the welding strength is high, but also the welding depth can be accurately controlled, the product pass rate is improved, energy saving and environmental protection, and the adaptability is strong.

The invention provides a microstructure electrode capable of realizing solder confinement infiltration and a preparation method thereof, a radial microgroove structure, an annular microgroove structure and a parallel line microgroove structure are sequentially engraved on the surface of the electrode to form functional combinations of different microstructures, and the microstructure electrode capable of realizing solder confinement infiltration is obtained. Fine machining of the microstructures on the surface of the electrode and functional combination of different microstructures are adopted, the wettability of the welding flux is enhanced through the radial microgroove structures in the center area, the spreading shape of the welding flux is controlled through the annular microgroove structures in the edge area, overflowing of the welding flux is restrained, and diffusion of the welding flux is guided through the parallel line microgroove structures in the connecting area. Therefore, through mutual combination and accurate processing of the microstructures with different functions, confinement infiltration of the welding flux on the surface of the electrode is realized, and the welding quality of the electronic element and the electrode is optimized.

The embodiment of the invention provides a stack packaging structure and a preparation method of the stack packaging structure, and relates to the technical field of chip packaging, the stack packaging structure comprises a wiring substrate, a structural chip, an adapter plate, a double-layer solder ball and a plastic package body, the double-layer solder ball is adopted, and a plurality of first supporting wire arcs are additionally arranged on a first bonding pad, so that the structure chip is not damaged; the first support wire arc is embedded into the outer coating layer, so that the bonding strength of the outer coating layer and the first bonding pad is greatly improved, the welding strength is effectively improved, and the bridging or pseudo soldering risk caused by substrate warping is reduced. And the solder of the outer coating layer is distributed more uniformly, and bridge connection caused by excessive overflow is avoided. Meanwhile, due to the supporting effect of the first supporting line arc, the inner core ball can be supported, the collapse phenomenon of the welding ball in the conventional technology is effectively relieved, the plastic package space is increased, and the plastic package hole phenomenon is relieved.

The invention relates to the technical field of tin alloy solder, and discloses a preformed soldering lug with high welding strength, which comprises a soldering flux layer and a soldering lug main body, the soldering flux layer comprises esterified rosin, methyl ester, succinic acid, glutaric acid, cyclohexylamine hydrochloride and isopropanol; the soldering lug main body comprises tin, antimony, silver, bismuth, copper and nickel; by adding silver, bismuth, copper, nickel and metal elements in the alloy into the soldering lug, the mechanical strength of the solder alloy can be improved, compared with common tin-copper alloy, the mechanical strength of the soldering lug is greatly improved, the soldering flux is high in activity but low in corrosivity, stable high-mechanical-strength intermediate layer alloy is formed, and the soldering flux can be applied to the field of soldering. The welding strength and the tensile strength are more excellent, the soldering flux layer and the soldering lug main body have the synergistic effect, so that a welded part has high tensile property after being welded, and the mechanical strength of the solder alloy can be improved by adding silver, bismuth, copper and nickel in the alloy into the soldering lug and metal elements.

This invention discloses a lead-out terminal structure and a secondary battery, belonging to the field of secondary battery technology. It aims to solve the problems of complex manufacturing processes, poor welding reliability, insufficient sealing, uneven stress, and high internal resistance in existing secondary batteries. The lead-out terminal structure includes a battery casing and a lead-out terminal assembly disposed on its lead-out holes. The lead-out terminal assembly consists of an upper electrode post, a lower electrode post, an upper sealing gasket, a lower sealing gasket, and a positive current collector. The upper electrode post has a concave center forming a recessed portion, with a welding hole at the bottom of the recessed portion. The lower electrode post is a circular plate, fixedly connected to the bottom of the recessed portion. The upper and lower sealing gaskets are respectively disposed on the inner and outer sides of the battery casing, and are pressed together by matching sealing bevels to form a continuous sealing surface. The upper surface of the positive current collector has a protrusion and is welded to the lower electrode post. This invention simplifies the manufacturing process, reduces costs, improves welding stability, sealing, and stress uniformity. Even if defects such as weld spatter occur during the welding process, it does not affect the battery's sealing performance, reduces the battery's internal resistance, and is suitable for various types of secondary batteries.

The utility model discloses an alloy wire infrared heating welding device, including upper cold die, hot die heating mechanism and lower cold die, the upper cold die includes upper plastic piece product fixed jig and upper plastic piece, the lower cold die includes lower plastic piece and lower plastic product fixed jig, the hot die heating mechanism is two hot die infrared heating mechanism, two hot die infrared heating mechanism symmetrical setting and through horizontal height adjusting bolt fixed on the heating device fixed plate, upper plastic piece and lower plastic piece set up on the hot die infrared heating mechanism, and with the infrared alloy heating wire on the hot die infrared heating mechanism keeps certain heating distance. The alloy wire infrared heating welding device provided by the utility model can replace traditional welding / bonding process, has the characteristics of high welding strength and good sealing effect, and has no welding slag foreign matter, greatly improves product production qualified rate.

The invention relates to the technical field of automobile machining welding, in particular to automobile machining welding equipment. The device comprises a frame body, a laser welding pen is arranged above the frame body, a moving assembly is arranged on the surface of the frame body, an annular clamping assembly is arranged at the end of the moving assembly, the annular clamping assembly is used for clamping tubular parts of different sizes, the moving assembly drives the annular clamping assembly to move, and the tubular parts fixed to the inner wall of the annular clamping assembly move relatively. The output shaft at the end of the first motor drives the friction wheel to rotate, the friction wheel is attached to the surface of the base plate, the base plate rotates at a constant speed under friction force, the laser welding pen is used for welding the welding positions between the tubular parts rotating at the constant speed, the labor intensity of operators is reduced, and meanwhile the working efficiency is improved. The tubular parts fixed to the inner walls of the limiting plates are located on the same horizontal line all the time, the welding path is uniform and flat in the welding process, and the welding strength of the tubular parts is improved.

This application discloses a composite photovoltaic ribbon and a photovoltaic module. The ribbon includes a ribbon substrate, which comprises an aluminum layer and a copper layer. The copper layer includes a first copper layer disposed on at least a portion of the outer peripheral surface of the aluminum layer. The mass ratio of the copper layer to the aluminum layer is 1:9 to 9:1, and the thickness of the first copper layer is greater than or equal to 2 μm. This application differs from the prior art in that it uses only copper as the ribbon substrate by adding an aluminum layer, reducing the amount of copper used and lowering the cost of the ribbon substrate. Furthermore, by limiting the mass ratio of the copper layer to the aluminum layer and the thickness of the copper layer, the electrical conductivity and mechanical properties of the ribbon substrate are ensured to meet requirements.

The utility model relates to the technical field of controller, specifically speak a kind of connecting structure of plug-in capacitor and aluminium substrate. It includes aluminium substrate and capacitor body, and connecting piece is arranged between the capacitor body and aluminium substrate, the capacitor body is welded on the aluminium substrate, the connecting piece is provided with the through-hole corresponding with the capacitor angle of capacitor body, the capacitor angle passes through the corresponding through-hole, and the capacitor angle bending, is pressed on connecting piece in the capacitor angle of one end close to aluminium substrate, so that the outer wall surface of capacitor angle is in abutment with the lower end surface of connecting piece, the fixed connection of capacitor body and connecting piece, the section capacitor angle bending is welded with the aluminium substrate. Through the above technical scheme, the utility model solves the problem that the capacitor body is difficult to be welded on the aluminium substrate.

The application provides a cover plate assembly and a battery. The cover plate assembly comprises a cover, a sealing element and a limiting plate. The cover comprises a top side and a bottom side distributed along the thickness direction of the cover. The top side of the cover is provided with a mounting groove. The bottom surface of the mounting groove is provided with a through liquid injection hole. The sealing element is inserted into the liquid injection hole to seal the liquid injection hole. The limiting plate is at least partially mounted in the mounting groove. The limiting plate is located on the side of the sealing element close to the top side of the cover and is welded to the cover. One side surface of the limiting plate is provided with a groove. The groove is formed with a notch on the corresponding side surface. The minimum distance between the edge of the notch and the edge of the corresponding side surface is W. In the thickness direction of the cover, the maximum thickness of the limiting plate is D1, and 0.5D1≤W≤0.75D1. Thus, the welding stress in the limiting plate can be absorbed by the groove, the risk of excessive welding stress in the limiting plate leading to cracks at the welding seam between the limiting plate and the cover can be reduced, and the welding stability and welding strength between the limiting plate and the cover are improved.

The utility model relates to the technical field of batteries, in particular to a collector plate, a cover plate assembly and a cylindrical battery. The collector plate comprises a plate body and a connecting part, a connecting groove is formed in the plate body, one end of the connecting part is connected into the connecting groove, the connecting part has a first bending state and a second bending state relative to the plate body, when the connecting part is in the first bending state, the connecting part is separated from the connecting groove, and when the connecting part is in the second bending state, the connecting part is separated from the connecting groove. And when the connecting part is in the second bending state, the connecting part can be completely accommodated in the connecting groove. And the connecting part is configured to be capable of being bent towards the direction close to the tray body, so that the connecting part is converted from the first bent state to the second bent state. The cover plate assembly comprises the flow collecting disc. The cylindrical battery comprises the cover plate assembly. The current collecting disc and the cover plate assembly are light and thin in structure, and the cylindrical battery has higher battery capacity.

The utility model relates to battery technology field, concretely relates to a battery device, and the battery device includes: first component and second component, welding assembly is arranged between first component and second component, and simultaneously connects first component and second component, welding assembly is provided with a plurality of welding parts in first component, and the difference h between the penetration of adjacent two welding parts has, the range of difference h is between 0.1mm < h < 1.0mm. This embodiment sets up a plurality of welding parts, compared with single area's welding part, can obviously improve the overcurrent area. Moreover, this embodiment carries out the differentiation adjustment to the penetration of adjacent two welding parts, can reduce the conduction efficiency of heat from the deep fusion area to the shallow fusion area, avoids the heat when welding too big, can obviously improve the welding quality and welding strength.

A kind of low vacuum laser welding method for GH4169 high-temperature alloy and SS304 stainless steel, the present application belongs to laser welding technical field.The present application solves the problem that the existing welding method cannot realize the low-cost and high-quality connection of medium thickness and above GH4169 alloy and SS304 stainless steel.One, welding assembly;Two, low vacuum laser welding;Three, heat treatment.The present application is used for the low vacuum laser welding of GH4169 high-temperature alloy and SS304 stainless steel.

The utility model discloses a processing device for a large-diameter thin-wall steel pipe, which relates to the technical field of steel pipe processing and comprises a steel pipe driving component, a mounting bracket is fixedly mounted at one end of the steel pipe driving component, a sliding bracket is mounted on the mounting bracket in a sliding manner, and an adjusting component is mounted on the sliding bracket. The grinding assembly is movably installed on the adjusting assembly and the sliding support, the grinding assembly is composed of a supporting frame, four supporting pulleys, a motor and a grinding wheel, the supporting pulleys are symmetrically and fixedly installed at the lower end of the supporting frame, and the mounting support is arranged on the steel pipe driving assembly and provided with the sliding support. The adjusting assembly is arranged on the sliding support, the grinding assembly is arranged on the adjusting assembly and the sliding support, and the grinding assembly can be matched with the steel pipe driving assembly to grind and clean the to-be-welded part of the steel pipe, so that a clean welding surface is provided for the subsequent welding procedure, welding defects such as air holes and slag inclusion are effectively reduced, and the welding seam quality and the steel pipe structural strength are improved.

The invention provides a quick-welding and high-reliability brazing film and a preparation method and a using method thereof, and belongs to the technical field of welding. According to the invention, a Ni / Al self-propagating reaction film is combined with a low-melting-point Sn weld-aid layer by relying on hot-pressing, electro-deposition and anodic oxidation composite process molding, and a multi-layer structure brazing film of a porous energetic film-Ni reaction layer-Sn anchoring layer is designed. According to the method, multi-point laser triggering and gradient pressure synergistic effect are combined, accurate regulation and control of multi-point triggering-reaction-welding can be achieved, the film is subjected to global uniform self-propagating exothermic reaction, rapid brazing connection is achieved, and an alloying connection interface with high bonding strength is formed. The process is simple, convenient and rapid, high in production efficiency and low in cost, the production period can be remarkably shortened, the problems that a traditional film interface is weak in bonding force, prone to layering and falling off and the like are effectively solved, welding faces of any shapes can be adapted, and a new technical approach is provided for efficient connection of complex components.

The application relates to an aluminum-silicon-strontium-titanium-zirconium alloy and an aluminum-silicon-strontium-titanium-zirconium alloy welding wire prepared from the same and belongs to the technical field of aluminum alloy welding wires. The alloy components and the weight percentages are as follows: Si: 4.50-5.50%; Mg: 0.01-0.05%; Sr: 0.02-0.50%; Ti: 0.01-0.15%; Zr: 0.01-0.20%; La: 0.01-0.10%; Ce: 0.01-0.15%; C: <0.0010%; the balance is Al and inevitable impurity elements, and the content of the inevitable impurity elements is less than 1.0 wt%. The application further discloses an aluminum-silicon-strontium-titanium-zirconium alloy welding wire prepared from the aluminum-silicon-strontium-titanium-zirconium alloy. Through control of the alloy components and the content of each component, the welding wire formed by the application has excellent performance in alloy mechanical properties, casting performance, grain refinement and welding quality.

The utility model discloses a kind of high-strength high-conductivity steel-aluminum composite plate explosive welding block, it relates to explosive welding block technical field, including steel plate and aluminum plate, steel plate is located at the bottom of aluminum plate, the four corners of steel plate and the four corners of aluminum plate are all set with round angle, the upper surface of steel plate is set with multiple micron-level grooves, explosive welding connection between steel plate and aluminum plate;The bottom of steel plate is provided with buffer support plate.A kind of high-strength high-conductivity steel-aluminum composite plate explosive welding block of the utility model, by setting the several micron-level grooves of steel plate upper surface, in the fusion welding of steel plate and aluminum plate, the welding surface molten metal of aluminum plate can be infiltrated into several micron-level grooves, increase the "occlusal" force, improve welding strength, the multiple wave-shaped protrusions of aluminum plate lower surface, in explosion, can be inserted into steel plate upper surface, can form "mechanical lock catch" structure, increase interface friction, improve welding strength.

This utility model discloses a feeding device for popcorn production, including a steel frame. The steel frame has a frame structure, and guide rails are fixedly connected to the left and right sides of the front end of the steel frame. A hopper is slidably connected to the front end of the guide rails. A discharge port is opened at the lower rear end of the hopper. Electric telescopic rods are fixedly connected to the left and right sides of the upper rear side of the hopper. The telescopic end of the electric telescopic rod is fixedly connected to a gate through a connecting block. The gate corresponds to the discharge port of the hopper. A fixing plate is fixedly connected to the top of the steel frame. A motor is fixedly connected to the rear side of the upper surface of the fixing plate. A reducer is fixedly connected to the middle of the upper surface of the fixing plate. The output shaft of the motor is fixedly connected to the input shaft of the reducer. When using this equipment, the risks of workers climbing to heights can be avoided. Workers only need to pour the raw materials into the hopper, which can greatly reduce the workload and make popcorn feeding time-saving, labor-saving, convenient and fast.

The utility model provides a kind of exhaust pipe structure and rotatory compressor for rotatory compressor, comprising: exhaust pipe body, hole for connecting equalizing pipe is equipped on exhaust pipe body;Reinforcing structure, it is set on exhaust pipe body, reinforcing structure is used to increase the connecting length of hole and equalizing pipe.The utility model can increase the connecting length of exhaust pipe body and equalizing pipe, thereby increase the welding penetration of exhaust pipe body and equalizing pipe, guarantee welding quality, improve welding strength, thereby reduce the probability that the leakage at this welding place leads to compressor failure.

The hoe assembly is an integrally-formed hoe plate piece, the upper end of the hoe plate piece protrudes outwards to form a protruding part, a hoe trouser installation hole is formed between the protruding part and the hoe plate piece, and therefore the protruding part forms a protruding ring part. The hoe comprises the hoe plate, hoe trousers and a hoe blade plate, the bottom of the hoe trousers is sleeved with the hoe trouser mounting hole, one part of the peripheral side of the hoe trouser is welded to the convex ring part, and the remaining part of the peripheral side of the hoe trouser is welded to the hoe plate. The upper end of the hoe blade plate is welded with the lower end of the hoe plate piece; compared with the prior art, the hoe has the advantages that the convex ring part which is integrally formed is arranged on the hoe plate piece, so that the whole peripheral side of the hoe trouser can be used as a welding point to be welded and fixed with the whole periphery of the hoe plate piece, and the convex ring part can also be used as a tightening piece of the hoe trouser, so that the structure of the hoe trouser and the hoe plate piece is firmer.

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 invention provides an X-ray tube anode target disc as well as a preparation method and application thereof. The X-ray tube anode target disc comprises a WRe-molybdenum alloy metal target material layer, a transition solder layer and a silicon carbide heat storage matrix which are sequentially compounded from top to bottom, the molybdenum alloy is selected from TZM, MHC and molybdenum lanthanum alloy; the transition solder layer is a Zr layer or a Ti layer; a non-welding surface of the silicon carbide heat storage substrate is provided with an aluminum oxide-titanium oxide blackening coating, and the room-temperature heat radiation coefficient of the aluminum oxide-titanium oxide blackening coating is 0.80 or above. The X-ray tube anode target disc has remarkably improved thermal performance, welding stability, mechanical performance and efficient thermal radiation heat dissipation performance.

The application discloses an aluminum-silicon coating plate integrated door ring lap joint double-beam laser tailor-welding process, and belongs to the technical field of the integrated door ring tailor-welding technology, and comprises the following steps: (1) obtaining each part of the sheet by laser cutting the aluminum-silicon coating plate; (2) sheet lap joint: the sheet lap joint position should be selected on one side of the patch plate, namely the weld seam side; the lap joint structure is two layers, when the two layers are lap jointed, the thinner sheet is placed on the upper layer, and the thickness ratio of the upper and lower layers is controlled to be 1; 1-3; (3) preparing a welding wire for the lap joint tailor-welding; the welding wire comprises a welding wire body and a composite layer on the surface; and (4) laser tailor-welding. The lap joint double-beam laser tailor-welding process solves the butt joint gap problem, can realize high tensile strength of the weld seam, standard penetration, no defects of the weld seam and a product yield of more than 99.5%.

This utility model discloses a solder mask opening structure for surface mount components, relating to the field of printed circuit board design technology. The solder mask opening structure for surface mount components includes a printed circuit board, which comprises a solder mask layer and a metal layer. A solder mask opening is provided on the solder mask layer. The metal layer is connected to the solder mask layer, and a first pad and a second pad are provided on the side of the metal layer facing the solder mask layer. The technical solution of this utility model fully considers the characteristics of small pad spacing and tiny solder shoulder size of 01005 surface mount components. By eliminating the solder mask bridge between the first and second pads, the first and second pads are fully exposed within the solder mask opening. Furthermore, by controlling the reasonable gap between the outer walls of the first and second pads and the inner wall of the solder mask opening, the solder paste printing and soldering process is optimized, fundamentally solving common problems such as solder balls, tombstoning, and cold solder joints in the SMT soldering process of 01005 surface mount components.

The application discloses an electric core shell and an electric core, and is used for solving the problem that the welding seam between the explosion-proof valves of the existing electric core shell is prone to cracking. The electric core shell comprises a first side wall, a second side wall and an explosion-proof valve. The first side wall and the second side wall are connected and surrounded to form a containing cavity for containing the electric core. The wall thickness of the first side wall is smaller than the wall thickness of the second side wall. The second side wall is provided with a mounting groove penetrating through the second side wall. The explosion-proof valve is arranged in the mounting groove. Therefore, the overall wall thickness of the shell is ensured without affecting the energy density of the electric core. The welding strength between the explosion-proof valve and the shell is improved. The welding seam between the explosion-proof valve and the shell caused by the too small wall thickness of the shell can be effectively avoided.

The utility model belongs to the technical field of cold welding machine, concretely is a kind of cold welding machine for galvanized sheet spot welding, including base, the upper surface of base is slidably installed with two left and right symmetrical clamping plates, the opposite surface of two clamping plates is rotatably installed with rotary gear, the opposite surface of rotary gear is fixedly installed with support plate, the inside of support plate is slidably installed with two upper and lower symmetrical fixed plates, and the one end of fixed plate is provided with horizontal part, the middle part of the opposite surface of two support plates is provided with limit slot, and the opposite surface of horizontal part close to limit slot of fixed plate is fixedly installed with cushion block. Through rotary gear, fixed plate, horizontal part, cushion block and limit slot etc. Setting, it can be stabilized fixed to galvanized sheet, improves welding quality, can also adjust welding angle simultaneously, improves welding effect, can also be turned over after welding, need not staff to manually take down and re-fix, reduce labor intensity, improve work efficiency.