618 results about "Brazing" patented technology

The invention discloses a pneumatic capillary copper pipe expanding machine and a pipe expanding method, and relates to the technical field of pipe expanding equipment, and the pneumatic capillary copper pipe expanding machine comprises a rack, a clamping conveying device and a pipe expanding male die device. The clamping and conveying device comprises a conveying air cylinder and a clamping mechanism, and the clamping mechanism is provided with a pipe penetrating channel to clamp the capillary copper pipe. The pipe expanding male die device comprises a pipe expanding fixing plate, a rotary disc, a rotary air cylinder, a plurality of pipe expanding mechanisms and a discharging pipe. The discharging pipe or one pipe expanding mechanism is coaxial with the pipe penetrating channel. The pipe expanding mechanism comprises pipe expanding needles fixedly arranged on the rotary disc, the diameters of the pipe expanding needles are sequentially increased in the rotating direction, and pipe expanding guide assemblies are arranged on the outer sides of the pipe expanding needles and are driven by a push-pull air cylinder to do axial reciprocating motion. The end of the capillary copper pipe can be directly expanded, a transition pipe is omitted, and brazing spots are reduced, so that the cost is reduced, pipe blockage and fluorine leakage are prevented, and the product quality is improved. The invention further discloses a pneumatic capillary copper pipe expanding method.

The invention provides municipal water supply pipeline welding equipment, and relates to the technical field of welding, the municipal water supply pipeline welding equipment comprises an upper clamping ring and a lower clamping ring, the upper clamping ring and the lower clamping ring define a circular ring, supporting semi-rings are fixed to the two upper clamping rings and the two lower clamping rings respectively, and a connecting plate is fixedly connected between the left supporting semi-ring and the right supporting semi-ring; telescopic moving wheels are arranged on the supporting semi-rings respectively, a supporting frame is connected between the two telescopic moving wheels, an extrusion wheel is connected to the supporting frame, an air bin is arranged on the supporting frame and arranged on the side, away from the extrusion wheel, of the welding head mechanism, the lower portion of the air bin is attached to the surface of the water pipe, and an air suction heating mechanism is arranged in the air bin and is in transmission connection with the telescopic moving wheels. An inclined plate is fixedly connected into the air bin, hot air is absorbed into the air bin, the solidification speed of a brazing rod solution is slowed down, the flowing speed of the brazing rod solution to a V-shaped groove welding seam is increased, the brazing rod solution is pushed to the V-shaped groove welding seam by arranging the inclined plate, and then the brazing rod solution is rolled by arranging an arc-shaped pressing roller.

Described herein is an aluminium alloy multi-layered brazing sheet product for brazing in an inert-gas atmosphere without a flux that includes a core layer made of a 3xxx alloy that includes <0.2 wt. % Mg, and that provides a covering clad layer that includes 2-6 wt. % Si on one or both sides of said 3xxx alloy core layer and a Al—Si brazing clad layer that includes 7-13 wt. % Si positioned between the 3xxx alloy core layer and the covering clad layer, wherein the covering clad layer has a thickness X1 and the Al—Si brazing clad layer has a thickness X2 and wherein X2≥2X1. Also described herein is the use of an aluminium alloy multi-layered brazing sheet product in a flux-free controlled atmosphere brazing (CAB) operation to produce a heat exchanger apparatus.

The invention relates to the technical field of vacuum brazing, and discloses a vacuum brazing method for a needle array radiator, which comprises the following steps of: fusing reference process parameters of a historical process knowledge base and multi-dimensional characteristic parameters of the needle array radiator to obtain brazing process characteristic parameters; performing process strategy matching on the needle array radiator to confirm a vacuum brazing strategy of the needle array radiator; a vacuum brazing strategy is applied, and a vacuum brazing furnace is driven to execute stage process operation of preheating degassing, brazing filler metal melting and spreading, diffusion bonding and controllable cooling; performing situation analysis on the real-time process data flow of the stage process operation to obtain deviation data; dynamic parameter reconstruction is conducted on the target brazing stage of the needle array radiator, and temperature regulation and control parameters and process logic parameters are obtained; the needle array radiator is subjected to circulating brazing control, and a post-welding component of the needle array radiator is obtained; the efficiency of the vacuum brazing method for the needle array radiator can be improved.

The invention discloses a brazing tool and method for a plate-fin radiator. Comprising a lower stainless steel foil (2), a lower temperature measuring plate (3), a lower stainless steel plate (4), a lower process aluminum plate (5) and a lower perforated plate (6) which are sequentially laid on the bottom face of a radiator (1) to be brazed, and an upper stainless steel foil (7), an upper temperature measuring plate (8), an upper stainless steel plate (9), an upper process aluminum plate (10) and an upper perforated plate (11) which are sequentially laid on the top face of the radiator (1) to be brazed. And more than one through hole (12) is distributed on each of the upper perforated plate and the lower perforated plate. The problem that the heat capacity of a brazing tool, the brazing gap and the pressing force of the tool are in contradictory relation is fundamentally solved.

The invention discloses a material with a silver coating for low-temperature brazing of brazing filler metal, and particularly relates to the field of brazing welding, which comprises the following steps: silver amalgam paste is prepared by oscillating and mixing silver powder and mercury according to the mass ratio of 1: 9-0.5: 9.5 in a manner and method for plating silver on the surface of base metal (metal, semiconductor, ceramic or glass); when brazing is carried out, the surface of the silver plating layer of the to-be-welded piece is coated with brazing filler metal, and then heating and pressurizing are carried out in a low-temperature interval of 120-350 DEG C in a vacuum, protective atmosphere or atmospheric environment to complete connection. According to the method, the amalgam reaction and isothermal solidification principles are utilized, a tough welding spot mainly comprising a silver-based solid solution is finally formed, generation of a large number of brittle intermetallic compounds is avoided, a connector has high strength, high reliability and excellent thermal fatigue resistance, and therefore the problems that gold-tin brazing filler metal is high in cost, the brittleness of the welding spot is large, and the welding temperature is high are successfully solved.

The invention provides a preparation method of a micro-channel pipe structural member for a liquid cooling plate, and belongs to the technical field of liquid cooling plates. The invention discloses a preparation method of a micro-channel pipe structural member for a liquid cooling plate. The preparation method comprises the following steps: S1, preparing raw materials for forming the liquid cooling plate; s2, carrying out roll bending forming treatment on the upper wallboard raw material; s3, roll bending forming treatment is conducted on the lower wall plate raw material; s4, the micro-channel pipe raw material is subjected to roll bending forming treatment; s5, the upper wall plate structural part, the lower wall plate structural part and the micro-channel pipe structural part which are subjected to roll bending forming treatment are connected and fixed through brazing, and a final three-layer structural part is assembled; and S6, a cooling water nozzle is installed at the position of the micro-channel pipe structural part. According to the method, roll bending is conducted firstly, then welding is conducted, the method has the advantages of being efficient and rapid in forming, integrated forming can be achieved on complex profiles through the process, high-temperature diffusion bonding is avoided, and therefore the service life of the three-layer plate is greatly prolonged, and the mechanical property of formed components is greatly improved.

The present application relates to high speed, high efficiency SiC power modules. A power converter module includes an active metal brazing (AMB) substrate, a power converter circuit, and an enclosure. The AMB substrate includes an aluminum nitride base layer, a first conductive layer on a first surface of the aluminum nitride base layer, and a second conductive layer on a second surface of the aluminum nitride base layer opposite the first surface. The power converter circuit includes a plurality of silicon carbide switching components coupled to each other via the first conductive layer. The enclosure is disposed over the power converter circuit and the AMB substrate. By using an AMB substrate with an aluminum nitride base layer, thermal dissipation of the power converter module can be significantly improved while maintaining structural integrity of the power converter module.

The invention belongs to the technical field of graphite metal composite heat dissipation devices, and provides a flexible graphene film heat conduction cable and a preparation method thereof.The preparation method comprises the steps that the surface of a graphene film is cleaned and punched, and the graphene film with micron-sized pores in the surface is obtained; sequentially plating a layer of active metal film and a layer of heat-conducting metal film on the surface of the graphene film, and cutting to obtain a graphene film; graphene films are overlaid layer by layer to obtain a laminated material, and the two ends of the laminated material are clamped to a hot-pressing mold to be subjected to hot-pressing welding treatment, so that a locally connected flexible heat conduction section is obtained; and the flexible heat conduction section and the heat conduction metal shell are assembled, a soldering lug is placed for brazing and finish machining, and the flexible graphene film heat conduction cable is obtained. According to the method, the internal connection problem of the flexible section is solved by establishing a synergistic process of surface punching, double-layer coating and hot pressing, the heterogeneous connection problem of the flexible section and the shell is solved in a manner of sampling coating and brazing, and through the synergistic effect of all links, the overall performance and reliability of the heat-conducting cable are remarkably improved.

The invention relates to the technical field of dissimilar material connection, in particular to a method for regulating and controlling molybdenum steel brazed joint intermetallic compounds based on transition elements. According to the technical scheme, the method comprises the following steps that a transition element coating is deposited on the surface of a molybdenum matrix, transition elements are selected from one or more of Ti, V, Nb, Zr, Hf and Ta, and the molybdenum matrix and a steel matrix are brazed through boron-containing Ni-based brazing filler metal; in the brazing process, the transition element and the boron element preferentially react to generate a transition element boride, and therefore generation of MoNiBintermetallic compounds is inhibited. According to the method, the transition element coating is introduced, a brazing interface reaction path is actively intervened and reconstructed from the thermodynamic angle, and the problem of continuous generation of the brittle MoNiBintermetallic compound in the molybdenum / steel brazing joint is fundamentally solved.

The invention relates to the technical field of material sealing, in particular to a high-performance insulating ceramic sealing method for a neutron tube, which comprises the following steps: sequentially carrying out organic solvent ultrasonic cleaning and argon plasma etching activation treatment on a sealing surface of a cylindrical high-purity aluminum oxide ceramic piece, and depositing a titanium transition layer through magnetron sputtering, the ceramic piece with the titanium transition layer is obtained; the sealing face of the kovar alloy cylindrical flange plate is subjected to acid pickling, an oxide layer is removed, cleaning and drying are conducted, and a metal sealing part is obtained; preparing an active brazing filler metal sheet; the components are assembled in sequence to form a pre-assembled component; the pre-assembled component is placed in a vacuum brazing furnace, axial pre-tightening force is applied to the pre-assembled component, sealing is completed, then cooling is controlled, and a sealing piece with an airtight brazing joint is formed; and carrying out annealing treatment to obtain a finished product sealing assembly. Therefore, the problems of low dielectric strength, large thermal expansion coefficient difference, difficulty in interface quality control and the like in the prior art are solved.

The invention relates to the technical field of vacuum brazing furnace temperature control, and discloses a vacuum brazing uniform heating and cooling system with multi-temperature-zone cooperative control. According to the system, a temperature deviation trend spectrum is generated by matching a multi-zone actual temperature curve with a workpiece target temperature curve, multi-temperature-zone energy dynamic rebalance is started accordingly, and a preliminary power scheduling atlas and collaborative cooling trigger nodes are generated. And then heat flow disturbance compensation amount caused by heat radiation of the hearth is calculated and integrated with the atlas and the nodes to form a unified final process control atlas, and the atlas comprises heating correction and cooling scheduling instructions at the same time. Predictive regulation and control of the furnace temperature change trend and active compensation of temperature interval thermal disturbance can be achieved, the heating process and the cooling process are highly coordinated, and the temperature uniformity and the process consistency of a large or complex workpiece in the brazing process are improved.

The invention provides a double-sided conduction AMB ceramic substrate and a manufacturing method thereof, and belongs to the technical field of ceramic substrates for power modules. The manufacturing method comprises the following steps: punching holes in a ceramic substrate; filling conductive metal slurry into the holes by using a screen printing machine and sintering at high temperature; brazing materials are printed on the two faces of the ceramic; the copper layer and the ceramic layer are laminated and then subjected to vacuum brazing; manufacturing a circuit; etching the solder layer of the AMB line groove to expose the ceramic; performing surface treatment; laser cutting; and conducting test and inspection. Two-sided conduction is realized through metal slurry hole filling and a high-temperature sintering process, the problem that conduction of an upper copper layer and a lower copper layer of a traditional AMB ceramic substrate cannot be realized is solved, the assembling size of a power module is reduced, the three-dimensional integration requirement of a high-end module is met, meanwhile, the technological process is reasonable, and the production cost is reduced.

The invention belongs to the technical field of brazing, and particularly relates to a contact-shaped composite brazing filler metal and a preparation method and application thereof.The preparation method comprises the steps that a sheet made of a material A is obtained; stamping the sheet by using a stamping die so that the surface of the sheet is bent to form a plurality of trapezoidal grooves to obtain a honeycomb array structure sheet; solder paste is sprayed and printed in the trapezoidal grooves of the honeycomb array structure sheets, and the solder paste comprises brazing filler metal B and scaling powder; the honeycomb-shaped array structure sheet sprayed with the soldering paste is put into a reflow oven to be heated, the brazing filler metal B in each trapezoid-shaped groove is melted to form a protruding contact, and a contact-shaped composite brazing filler metal sheet is obtained; wherein the scaling powder is separated out in the heating process and flows to cover the outer surface of the contact-shaped composite brazing filler metal sheet; the high-strength composite welding spot can be prepared, and the characteristics of low-temperature welding and high-temperature application are achieved.

The invention belongs to the technical field of aluminum alloy production, and particularly discloses a method for producing 3003ZNZR alloy blank in a low-carbon and environment-friendly mode through composite brazing waste, composite brazing secondary aluminum waste is used for production in a large proportion, the rolling temperature of a cast plate is strictly controlled by optimizing alloy components and a three-pass continuous rolling process, and three-pass rolling production of a thinned blank is achieved; compared with a fusion casting and hot rolling production method, the production method has the advantages that the working procedures are greatly reduced, the production cost is much lower, the thickness of a finished blank is reduced, subsequent cold and foil rolling calendering processing is facilitated, and the production cost can be greatly reduced.

The application discloses a brazing method of magnesium / aluminum dissimilar metals, which comprises the following steps: pre-electroplating nickel on a magnesium alloy base material, connecting the prepared magnesium alloy with a nickel plating layer and an aluminum alloy by using an ultrasonic-assisted brazing method, and using a brazing filler metal SAC305. The method prevents the generation of Mg-Sn intermetallic compounds (IMCs) in the process of magnesium / aluminum dissimilar metal low-temperature brazing using a Sn-based brazing filler metal. After welding, the position of the original nickel plating layer is changed into a Cu-Ni solid solution, and no large block-shaped Mg2Sn IMC is found in the brazing seam. Compared with a joint without a plating layer, the shear strength of the magnesium / aluminum dissimilar metal brazing joint based on the nickel plating layer is greatly improved, and the joint strength is strengthened by the diffusion of the nickel element into the brazing seam in the welding process. In addition, the corrosion resistance of the magnesium alloy can be improved by plating nickel on the surface of the magnesium alloy, and the service life of the magnesium / aluminum component is prolonged.

The invention relates to a brazing method for an aluminum oxide ceramic / niobium metal high-temperature-resistant structural member, which is characterized by comprising the following steps of: 1, plating nickel on a tungsten metallization layer of aluminum oxide ceramic; and secondly, vacuum brazing is conducted on the aluminum oxide ceramic and niobium metal through the AuNi 17.5 / tungsten net / AuNi 17.5 composite brazing filler metal. According to the method, a layer of nickel metal is electroplated on the tungsten metallization layer, spreading of the brazing filler metal is facilitated, the tungsten metallization density can be increased, and the wettability of the brazing filler metal on an interface can be improved. And by adopting the gold-nickel brazing filler metal, the welding seam forming quality and the temperature resistance of the joint can be improved.

The invention relates to the field of ceramic copper-clad plates, in particular to a manufacturing method of a double-sided conducting ceramic copper-clad plate for improving adhesive force between a copper sheet and a ceramic substrate, which comprises the following steps of: a, drilling a hole on the ceramic substrate to obtain a ceramic substrate hole, and processing burrs on the surface of the ceramic substrate hole which is of a through hole structure; b, the surface of the ceramic substrate obtained in the step a is cleaned, then holes of the ceramic substrate are filled with hole filling slurry, and the component of the hole filling slurry comprises Cu; c, the front face and the back face of the ceramic substrate are coated with brazing filler metal, the brazing filler metal is dried, and the brazing filler metal comprises Cu; and d, cleaning the copper sheets, respectively arranging the copper sheets on the brazing materials on the front surface and the back surface of the ceramic substrate, and then completing vacuum brazing to obtain the double-sided conduction copper-clad plate. The method is particularly suitable for the manufacturing process of the double-sided conduction ceramic copper-clad plate.

The invention relates to a high-temperature brazing connection method of a hard alloy drill bit, which belongs to the technical field of brazing, and comprises the following steps: welding: in an argon environment, synchronously heating a steel body drill bit groove and the hard alloy drill bit to 600-700 DEG C, keeping the temperature, intensively aligning a heat source at a position 2-5cm away from the butt joint of the steel body drill bit groove and the hard alloy drill bit, raising the temperature to 950 DEG C, and keeping the temperature for 5-10min; and removing the heat source, inserting into a gradient cooling medium filled with argon, cooling and taking out after the gradient cooling medium submerges the steel body drill bit groove and the hard alloy drill bit by 5cm, thereby completing the welding of the steel body drill bit groove and the hard alloy drill bit. Through the synergistic effect of the composite brazing filler metal and the composite brazing flux, bubbles at welding points are effectively reduced, so that the welding positions have high strength, uniform and continuous brazing seams are formed in the whole welding face, the welding points can bear high shearing force and can also bear certain impact and bending stress, and the welding quality is improved. Meanwhile, permeation corrosion of media such as cooling liquid and cutting fluid can be effectively prevented.

This invention provides a brazing filler metal, a brazing filler metal preparation method, and a rectifier brazing method. The brazing filler metal includes a first brazing filler metal and a second brazing filler metal. The brazing filler metal preparation method involves uniformly mixing high-temperature alloy powder and brazing binder at a mass ratio of 2:1 to 3:1 to form the first brazing filler metal; and uniformly mixing BNi2 powder and brazing binder at a mass ratio of 10:1 to 15:1 to form the second brazing filler metal. By specifying brazing filler metals with a specific particle size ratio and applying different types of brazing filler metals in different zones, defects such as incomplete welding and porosity that are difficult to control in large-gap welds during processing and assembly are solved, improving the welding quality of welds with both large and small gaps, thereby increasing the product qualification rate.

The application discloses a brazing process for realizing connection of hard alloy and steel dissimilar materials by using low-silver foil brazing filler metal and application thereof, realizes connection between the hard alloy and the steel, fully gives play to the advantages of the hard alloy and the steel, avoids precipitation of hard and brittle phases at a weld interface, solves the problem of excessive dissolution of base materials, and has the characteristics of high shear strength. The application provides a brazing process for realizing connection of hard alloy and steel dissimilar materials by using low-silver foil brazing filler metal, compared with other welding technologies, the brazing process has good welding effect, low production cost, safety and environmental protection. Meanwhile, the shear strength at a welding position is high, and the corrosion resistance is excellent, and the brazing process is especially suitable for welding of the hard alloy and the steel in a shield tunneling machine cutter.

The invention relates to a synchronous brazing device. The second vertical plate is arranged, the first part, the second part and the third part which need to be welded are all located on the vertical plate, meanwhile, the second part is located on the upper portion, the third part is located on the lower portion, and therefore the two ends of the first part can be welded to the second part and the third part at the same time. By means of the device, three parts can be synchronously welded, the welding efficiency is effectively improved, only one device is used, the parts do not need to be transferred among multiple devices, the transferring time is saved, and the welding efficiency is relatively improved. Moreover, due to the fact that a second vertical plate is arranged, a first positioning assembly is arranged on the second vertical plate, a second sliding block assembly and a third sliding block assembly are arranged on one side of the first positioning assembly, and the second sliding block assembly is located above the third sliding block assembly. Due to the fact that all the components are arranged on the vertical plate, space is fully utilized, the horizontal length is short, and the overall structure is compact.

The present application relates to the technical field of welding material, in particular to a Nb-Ti-Zr-V brazing filler metal for Nb alloy honeycomb brazing, a brazing filler metal coating and a preparation method thereof. The Nb-Ti-Zr-V brazing filler metal for Nb alloy honeycomb brazing comprises 10-25% of Nb, 42-52.5% of Ti, 9-11.25% of Zr and 9-11.25% of V in terms of mass percentage. The purpose of the Nb-Ti-Zr-V brazing filler metal for Nb alloy honeycomb brazing, the brazing filler metal coating and the preparation method thereof is to solve the problem of poor welding rate when Ti-Zr-V brazing filler metal is used for honeycomb brazing.

The application discloses an oriented structure graphene / copper composite filler metal, graphene is coated on the surface of flaky copper powder, and then is compacted, so that the graphene and copper are closely arranged in layers and intervals. The application further discloses a preparation method of the oriented structure graphene / copper composite filler metal, comprising the following steps: taking the flaky copper powder coated with graphene to perform hot-pressing sintering or discharge plasma sintering, so as to obtain the oriented structure graphene / copper composite filler metal. The application further discloses a sandwich composite brazing structure. The application further discloses application of the oriented structure graphene / copper composite filler metal and the sandwich composite brazing structure in ceramic and metal welding. The application further discloses a welding method. In the oriented structure graphene / copper composite filler metal, the graphene and copper are closely arranged in layers and intervals, and the arrangement orientation of the graphene is kept consistent; when brazing, the graphene can effectively hinder active elements such as Ti from corroding the copper matrix, reduce the residual stress of the welded joint, and improve the welding strength.

The invention belongs to the field of Ti / Al laser melt-brazing, and discloses a titanium-aluminum dissimilar metal laser short fiber implantation-melt-brazing integrated welding and visualization system which comprises a mechanical arm, a laser beam, a laser short fiber implantation nozzle, a wire feeding head, a shielding gas nozzle, a Ti plate, a clamp, a horizontal fine adjustment mechanism and a turnover mechanism. The method comprises the following steps: firstly, implanting Ti short fibers into a Ti butt joint surface through low-power laser, and forming a'implantation 'rough interface with an extremely high specific surface area on the surface of the short fibers after the short fibers are partially molten; and secondly, after the Ti plate is overturned by the overturning mechanism, the abutted seam gap is automatically adjusted, and Ti / Al laser melt-brazing is carried out by adopting high-power laser. In this way, the heterogeneous interface is promoted to form a riveting interlocking mode, and the strength of the heterogeneous interface is greatly improved. And finally, representing the welding process by adopting a numerical simulation technology to obtain a heat transfer flow behavior so as to guide process regulation and control.

The application discloses a self-cutting mechanical anchor bolt blade brazing device, which comprises a high-frequency brazing device and a welding wire feeder arranged on a fixed base, a vertical positioning support arranged in the center of the base, and an annular groove arranged around the bottom of the positioning support on the surface of the base; a positioning disc is fixed in the annular groove; a manipulator is arranged on the base; a plurality of anchor bolt positioning strips with convex structures are symmetrically arranged on the surface of the positioning disc and correspond to vertical seams of the anchor bolt; and a plurality of blade holes penetrating through the positioning chuck correspond to the blade grooves of the anchor bolt; the base is provided with a plurality of blade channels in communication with the bottom of the blade holes of the positioning chuck and used for conveying the blades, each blade channel is provided with a conveying rail and a conveying wheel and is connected with a vibrating screen disc for blade arrangement and feeding, so that the blades are automatically conveyed to the blade grooves of the anchor bolt. The brazing device has good stability and high efficiency and can realize accurate and high-quality automatic brazing of the self-cutting mechanical anchor bolt blade.

Method for manufacturing a turbine blade, the method comprising: a brazing treatment for joining a brazing material to a substrate of a turbine blade by heating the substrate with the brazing material placed on it and melting the brazing material after the substrate has been subjected to a solution annealing treatment at a temperature above the solidus temperature of the brazing material; a stabilization treatment for heating the substrate material undergoing brazing; and an aging treatment to heat the substrate material undergoing stabilization treatment at a temperature below the solidus temperature of the brazing material, where the brazing treatment and the stabilization treatment are carried out by means of a sequential heat treatment.

1. Name of the product in this design: Automatic Flame Brazing Machine. 2. Purpose of this design: for flame brazing. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. The top of the product is already shown in the other views, and the bottom is not commonly used, so the tilt view is omitted.

The invention relates to an aging strengthening aluminum alloy plate strip for carrier gas brazing and a preparation method thereof.The aging strengthening aluminum alloy plate strip comprises a brazing layer, a core layer, a blocking layer A and a blocking layer B. The blocking layer A and the blocking layer B are located on the two sides of the core layer, and the core layer comprises, by mass, 0.8-1.3 wt% of Mg, 0.8-1.3 wt% of Si, 0.5-0.8 wt% of Cu, 0.2-0.5 wt% of Mn, 0.01-0.05 wt% of Ti and the balance Al and inevitable impurities; the thickness of the brazing layer accounts for 9%-11% of the total thickness of the plate strip, the thickness of the blocking layer A accounts for 6%-10% of the total thickness of the plate strip, the thickness of the blocking layer B accounts for 10%-14% of the total thickness of the plate strip, and the rest thickness is the core layer. Compared with a traditional material, the steel plate has higher pre-welding strength and post-welding strength, can adapt to various use environments, and is prolonged in service life. After being brazed, the product can be subjected to aging strengthening according to actual use requirements, different use strengths are obtained, and the product can be suitable for carrier gas brazing with low production cost, can be produced in a large scale and meets the use requirements of the current market.

A modular pod for performing a brazing process includes a housing defining an interior thereof, a vacuum device in selective fluid communication with the interior of the housing with the vacuum device configured to selectively form a vacuum within the interior of the housing, a first energy source disposed external to the interior of the housing, and a first energy access feature provided through the housing. The first energy access feature forms a pathway for transferring energy from the first energy source to the interior of the housing for heating a workpiece disposed therein in accordance with the brazing process. A heat conductive gas is selectively fluidly communicated to the interior of the housing following formation of the vacuum therein with the heat conductive gas aiding in transferring heat energy to the workpiece during the brazing process.