142 results about "Laminated composites" patented technology

The invention relates to a novel composite bipolar membrane for preparing low-carbon alcohol alkali metal salt and an electrodialysis process of the novel composite bipolar membrane, and belongs to the technical field of membrane separation and electrochemical synthesis. The composite bipolar membrane comprises a cation exchange layer, a middle catalyst layer and an anion exchange layer which are sequentially laminated and compounded, the process comprises the following steps: introducing a salt solution containing alkali metal ions into an anode chamber of a bipolar membrane electrodialysis system, and introducing a low-carbon alcohol solution into a cathode chamber; applying a direct-current electric field to the two sides of the composite bipolar membrane, so that the low-carbon alcohol is dissociated at the membrane interface to generate alkoxy ions and hydrogen ions; the alkoxy ions migrate to an anode chamber to be combined with the alkali metal ions to generate low-carbon alcohol alkali metal salt; the membrane material is high in adaptability, the membrane structure is good in stability, technological parameters are mature, and the system integration degree is high.

The invention provides a bendable substrate of a folding screen and a preparation method thereof, the bendable substrate is of a laminated composite structure, and the bendable substrate sequentially comprises a first adhesive layer, a metal elastic layer, a second adhesive layer, a deformable supporting layer and a composite adhesive film layer from one side close to the screen to one side attached and fixed; the deformable supporting layer is a bendable carbon fiber layer or metal layer with meshes. According to the bendable substrate provided by the invention, elastic recovery of the metal elastic layer and stress release of the supporting layer with the meshes are used for synergistic interaction, so that creases after long-term bending are greatly reduced, and a screen area is kept flat and touches smooth for a long time.

The invention discloses a preparation method of an aerogel laminated composite heat insulation pad, and relates to the technical field of aerogel heat insulation pads, and the preparation method comprises the following steps: mixing and dispersing a silane precursor and absolute ethyl alcohol, adding a basic catalyst, hydrolyzing to generate sol, and aging to form prefabricated sol; adding a flame retardant, a smoke retardant and reinforced fibers, dispersing and gelatinizing, and carrying out supercritical drying to obtain an aerogel block; and coating basalt fiber non-woven fabric with the aerogel slurry to form a base layer, laminating a plurality of layers, and carrying out hot-pressing curing, cooling, post-curing, cutting and edge covering to obtain the composite heat insulation pad. According to the invention, by optimizing the ratio of silane and a drying process, the pore structure and the thermal stability of the aerogel are obviously improved; the flame-retardant, mechanical and heat-insulating properties are improved through multi-component collaborative design, and the obtained heat-insulating pad has the characteristics of low heat conductivity, high strength, excellent flame retardance and light weight, and is suitable for multiple heat-insulating and flame-retardant fields.

The invention discloses a 2: 17 type rare earth soft magnetic / Fe-based soft magnetic laminated composite material and a preparation method thereof. The method sequentially comprises the following steps: 1) screening 2: 17 type rare earth soft magnetic powder, performing insulation coating, mixing with polyurethane, and performing magnetic field orientation to obtain a thin ring green body; (2) Fe-based soft magnetic powder is sieved and mixed with polyurethane, and then a thin ring green body is obtained through magnetic field orientation; (3) alternately stacking the 2: 17 type rare earth soft magnetic thin ring green bodies and the Fe-based soft magnetic thin ring green bodies in the direction perpendicular to the plane of the thin ring green bodies; and 4) carrying out hot press molding on the laminated soft magnetic composite material. Based on the high-frequency characteristic of the 2: 17 type rare earth soft magnetic material and the high magnetic conductivity characteristic of the Fe-based soft magnetic material, collaborative optimization of the magnetic conductivity and the cut-off frequency is achieved within the ultra-wideband range from MHz to GHz, the problem that the magnetic conductivity of a traditional soft magnetic composite material is attenuated along with the frequency is effectively solved, high-frequency loss is greatly reduced, and the service life of the soft magnetic composite material is prolonged. And a solution is provided for high-frequency soft magnetic components (such as inductors and transformers) with high magnetic performance and low power consumption.

The invention relates to the field of polymer composite materials and functional films, and provides a cast film for a lithium ion battery, which is characterized in that the cast film is of a laminated composite structure, and the laminated composite structure comprises a support layer and an interface functional layer; the supporting layer comprises polymer fibers and boron nitride nanosheets which are dispersed in a three-dimensional network of the polymer fibers in a highly oriented manner; wherein the included angle between the plane normal direction of the boron nitride nanosheet and the thickness direction of the cast film is less than 30 degrees; the interface functional layer comprises a hyperbranched polymer matrix and LLZO nanowires which are distributed in the hyperbranched polymer matrix in a gradient manner; the surface, deviating from the supporting layer, of the interface functional layer is grafted with a zwitterionic polymer brush through chemical bonding; wherein the surface density of the LLZO nanowire is gradually reduced from the surface, grafted with the zwitterionic polymer brush, of the interface functional layer to the direction of an interface combined with the supporting layer; the cast film has good electrochemical performance, interface stability and safety performance.

The invention provides an MAX phase / alumina layered composite ceramic and an in-situ synthesis preparation method thereof, and the method comprises the following steps: respectively preparing an alumina matrix layer and an MAX phase interface layer through a tape casting method, then alternately laminating the alumina matrix layer and the MAX phase interface layer, and finally carrying out hot pressed sintering to obtain a layered composite ceramic product. According to the invention, the layered composite ceramic which takes aluminum oxide as a matrix and MAX-phase ceramic as an interlayer is prepared through an in-situ synthesis technology, so that the effects of great toughening, strength increase without reduction and high damage tolerance are realized, and the fracture mode is converted from brittle fracture of aluminum oxide ceramic to safe stepped fracture. The strength and toughness of the aluminum oxide ceramic are successfully balanced and synergistically improved, and the industrial problem that strength and toughness cannot be both considered in a traditional aluminum oxide ceramic toughening technology is solved.

The utility model relates to the technical field of energy storage medium production equipment, and provides a solid-state cell-free energy storage power supply continuous rolling device which comprises a rack; the diaphragm roll is rotationally arranged on the rack and is used for providing a battery diaphragm; the at least two extrusion roller groups I are rotationally arranged on the rack and are respectively used for extruding the two electrode raw materials and outputting two corresponding electrode bands, and the two electrode bands are respectively positioned on two sides of the battery diaphragm; the at least two rolling belts are arranged relative to the rack in a circulating transmission mode, the rolling belts are arranged on the side, away from the battery diaphragm, of the electrode belt, and the rolling belts abut against the electrode belt; according to the technical scheme, the problem that the reject ratio of products is increased due to the phenomena of glue failure, layering and the like of the products when three intermediate products are not laminated and compounded in place in the prior art is solved.

The invention relates to the technical field of waterproof coiled material laying, in particular to a roof structure for laying thermoplastic polyolefin waterproof coiled materials and a laying method thereof.The roof structure comprises a roof structure layer and further comprises a leveling layer arranged on the roof structure layer; the waterproof roll layer is arranged on the leveling layer, and the waterproof roll layer is a laminated composite material and comprises a thermoplastic polyolefin surface layer, a reinforcing layer and an asphalt self-adhesion bottom layer; wherein the reinforcing layer is made of one of a polyester base, glass fiber gridding cloth or polypropylene fiber cloth. According to the waterproof coiled material, the waterproof coiled material layer formed by compounding the thermoplastic polyolefin surface layer, the reinforcing layer and the asphalt self-adhesion bottom layer is adopted, advantage complementation of properties of different materials is achieved, and the thermoplastic polyolefin surface layer endows the coiled material with excellent weather resistance, chemical corrosion resistance and reflective insulation effect; the reinforcing layer improves the overall mechanical strength, tear resistance and dimensional stability of the coiled material.

The application discloses a kind of laminated composite intercalation repair methods, belong to laminated composite maintenance technical field.The application uses the way of multilayer intercalation reinforcement patch, significantly increase the bonding area of patch and original laminated laminated composite material, can effectively improve the bonding strength of repair area, so that repair area will not become laminated laminated composite material / member dangerous area;The bonding surface is composed of multiple planes, and adjacent bonding surfaces bear tensile or shear load respectively, and after debonding or damage of a certain bonding surface, the crack will not spread to other bonding surfaces, significantly enhance the damage tolerance of repair bonding area, and further improve the mechanical properties of repair material / member.

Disclosed herein is a composite material (1) comprising a polymer matrix (2) and fibres (4) arranged in said polymer matrix (2), wherein: - the polymer matrix (2) comprises a polyphenol in an amount equal to or greater than 15% by weight with respect to the weight of the polymer matrix (2), the fibres (4) have aa tensile modulus of elasticity, measured according to ASTM C1557, greater than 50 GPa, and are present in an amount equal to or greater than 80% by weight with respect to the weight of the polymer matrix (2).

The application provides a preparation method of a laminated composite material and the laminated composite material, and belongs to the technical field of composite materials, and comprises the following steps: stacking an annealed first plate, a second plate and a third plate to form a minimum unit, the second plate is located between the first plate and the third plate; the tensile strength of the second plate is 150-300 MPa; the thickness ratio of the first plate, the second plate and the third plate satisfies 20:(1-2):(10-15), and the thickness of the second plate is 0.05-0.80 mm; the minimum unit is rolled, and the reduction of the first pass rolling is 50%-75%. High-conductivity copper is introduced as an intermediate layer, through the crystal structure, the tensile strength of the second plate, the thickness ratio of the first plate to the third plate, and in combination with the subsequent rolling process, the first plate, the second plate and the third plate realize the matching of strength and plasticity, and the interface appears a deep corrugated structure.

The application discloses a graphene and diamond reinforced copper-based laminated composite material and a preparation method thereof. The composite material is composed of surface-modified nickel-plated graphene 0.5-2.5 wt.%, core-shell structure nickel-plated diamond 3-6 wt.% and the balance of copper sheet, with a total of 100 wt.%. The surface-modified graphene is modified graphene using a rutin solution. The surface-modified nickel-plated graphene and the surface nickel-plated diamond are prepared by a chemical plating method. The core-shell structure nickel-plated diamond is realized by ball milling. The application forms a close cross-interlocking bond between the metal matrix and the reinforcing phase, so that the obtained composite material is more compact. The core-shell structure reinforcing phase enhances the comprehensive performance of the composite material by providing its own excellent performance and prolonging the crack path. Finally, the comprehensive performance of the laminated composite material is improved.

The present application relates to the technical field of material testing, in particular to a sample and tool for testing Z-direction fatigue performance of laminated composite material, the sample is axisymmetric dumbbell-shaped, comprising a middle test section and two end holding ends, and the bonding interface is located in the test section; the diameter of the test section is 5-10 mm, and the diameter of the holding end is greater than or equal to 2 times the diameter of the test section; the thickness of the holding end is not less than 5 mm, and the axial distance from the inner side end face to the bonding interface is not less than 3 mm, so that the interface is ensured to be in a uniform stress area; the transition area is smoothly connected by a circular arc with a radius of greater than or equal to 2 mm. The present application can accurately and repeatedly characterize the Z-direction interface fatigue performance on a conventional fatigue testing machine, and solves the problem that the traditional composite material joint sample cannot test the real joint interface performance.

The application discloses a preparation method of aluminum-magnesium laminated composite material based on chemical copper plating pretreatment and relates to the technical field of metal laminated composite material preparation. The preparation method of aluminum-magnesium laminated composite material based on chemical copper plating pretreatment is characterized in that copper is plated on both surfaces of a magnesium alloy substrate by a specific process chemical displacement, a thin copper layer with three-dimensional interconnected pores is prepared in situ, sufficient copper source is provided for the magnesium side interface without increasing the thickness of the intermediate copper foil, and the problem of "copper starvation" that copper elements unidirectionally diffuse to the aluminum alloy side and the magnesium side is depleted in the traditional process is solved. The porous structure forms a large number of atomic diffusion channels, effectively reduces the diffusion resistance of copper atoms, and enables the copper elements to synchronously and evenly diffuse to the aluminum and magnesium substrates, so that a continuous and stable gradient diffusion metallurgical bonding layer is formed on each interface.

A metal laminate composite includes a first layer comprising a copper-containing compound, a second layer selected from steel or stainless steel, and a third layer selected from copper or a copper alloy. The second layer constitutes from 7% to 25% by volume of the metal laminate composite. In some cases, the composite exhibits a yield strength of greater than 80 MPa.

A method for manufacturing a composite material for packaging and tableware is disclosed. The method comprises forming a sheet from a grain-based composition, either by puffing the composition between matrices in a puffing chamber or by extruding a plasticized composition through a die. The resulting sheet, which has a porous matrix, is then laminated on at least one side with a protective film. Lamination may be performed using hot, cold, or wet techniques. The final laminated composite sheet, having a sandwich-type structure, can be cooled, cut into blanks, and subsequently formed into various articles such as trays, plates, and containers.

The invention relates to a production method of a 625 / X65 / 625 double-sided nickel base alloy layered composite plate. The production method comprises the following steps: (1) selecting an assembly raw material; (2) polishing the surface to be contacted; (3) forming a 625 / X65 / 625 composite blank; (4) end face coping; (5) carrying out lap-joint seal welding and vacuumizing; (6) heating for the first time; (7) rolling for the first time; (8) heating for the second time; (9) carrying out a second round of rolling; and (10) trimming to obtain the 625 / X65 / 625 nickel base alloy layered composite plate with the target specification. According to the 625 / X65 / 625 double-sided nickel base alloy layered composite plate produced through the method, the synchronous deformation rate of base layer metal and composite layer metal is high, the plate shape is flat, the composite interface performance is high, stability is good, compared with a 625 alloy plate, the economic cost is obviously reduced, the production process is simple, and the method is suitable for industrial large-scale production of flat plates and rolled plates.

The application discloses a double-layer film structure OMD decorative composite film piece and a manufacturing method thereof. The composite film piece comprises, from bottom to top, an injection molding base material, a polyurethane adhesive layer, a PC decorative film layer, a high-transparency polyurethane adhesive layer and a protective film layer. A five-layer laminated composite structure is arranged, the bottom layer is an injection molding base material of PC or ABS, the PC decorative film is combined through the polyurethane adhesive layer, and the PMMA protective film is attached through the high-transparency polyurethane adhesive layer. The PC decorative film can bear various intaglio textures, and the decorative style is rich. The outer PMMA has good light transmission, is resistant to ultraviolet rays and has high surface hardness, can isolate water vapor and light, and makes up for the performance defects of the PC film. The two polyurethane adhesives respectively realize the close adhesion of the base material and the PC film, the PC film and the PMMA film, and the layers are not easy to be layered and bulged. The whole composite structure is suitable for the OMD vacuum pressure difference film coating process, considers the various appearance decorative effects and outdoor weather resistance and scratch resistance, and solves the defects that the traditional pure PC film is easy to age and scratch when used for out-of-mold decoration alone.

The invention relates to the technical field of packaging box production equipment, in particular to packaging box production equipment based on edge milling avoidance, which comprises a feeding unit, an edge milling unit, a glue melting unit and a forming unit, the feeding unit is used for sequentially conveying external paperboards to the edge milling unit, the glue melting unit and the forming unit; the edge milling unit is used for conducting local milling and thinning treatment on lug plates of paperboards and / or folding areas of side plates adjacent to the lug plates, the glue melting unit is used for conducting glue applying on the milled and thinned positions of the edge milling unit, and the forming unit is used for conducting folding and bonding forming on the paperboards obtained after glue applying, so that the paperboards form a packaging box body. Under the condition that high-precision independent cutting does not need to be carried out on the grey board layer, the problems that lug plates are prone to bulging and corners are prone to arcing in the folding forming process of the laminated composite paperboard can be effectively solved, the lug plate area of a formed packaging box is flat, the corners are clear, and the appearance quality and forming consistency of the packaging box are remarkably improved.

The invention relates to a production method of a 625 / X65 nickel-based alloy laminated composite plate. The production method comprises the following steps: (1) selecting an assembly raw material; (2) polishing the surface to be contacted; (3) forming a 625 / X65 composite blank; (4) end face coping; (5) carrying out lap-joint seal welding and vacuumizing; (6) heating for the first time; (7) rolling for the first time; (8) heating for the second time; (9) carrying out a second round of rolling to obtain a 625 / X65 composite board; and (10) trimming to obtain the 625 / X65 nickel-based alloy layered composite plate with the target specification. According to the 625 / X65 nickel base alloy layered composite plate produced through the method, the synchronous deformation rate of base layer metal and composite layer metal is high, the plate shape is flat, the composite interface performance is high, stability is good, compared with a 625 alloy plate, the economic cost is obviously reduced, the production process is simple, and the method is suitable for industrial large-scale production of flat plates and rolled plates.

The application provides a multi-step heat treatment method for improving the strength and toughness of a TiAl / Ti2AlNb layered composite material, comprising: performing one solid solution treatment on the rolled TiAl / Ti2AlNb layered composite material, and then rapidly air cooling to room temperature; performing one aging treatment on the TiAl / Ti2AlNb layered composite material after the solid solution treatment, and then furnace cooling to room temperature; performing two solid solution treatments on the TiAl / Ti2AlNb layered composite material after the one aging treatment, and then immediately water cooling to room temperature; performing two aging treatments on the TiAl / Ti2AlNb layered composite material after the two solid solution treatments, and then furnace cooling to room temperature; and through the multi-step heat treatment, the TiAl / Ti2AlNb layered composite material obtained after rolling is regulated to obtain the best organizational state of the TiAl and Ti2AlNb alloys, and meanwhile, the formation of brittle phases at the diffusion interface of the composite material is avoided, and the strength and toughness of the TiAl / Ti2AlNb layered composite material are improved.

The invention relates to the field of research, development and application of semiconductor devices, in particular to a silicon / graphene / germanium barrier transistor array based on the technology of epitaxial growth of graphene on germanium and a construction method. The transistor comprises the following components from top to bottom: a first layer comprises a base electrode and silicon thin film combined structure, a second layer comprises an emitting electrode and epitaxially-grown single-crystal single-layer graphene, a third layer is a germanium substrate, and a fourth layer is a collector electrode; wherein the bottom of the base electrode is connected with the graphene through a silicon thin film, and the graphene is a layer of single crystal graphene growing on the surface of the germanium substrate through chemical vapor deposition; the base electrode, the emitter electrode and the collector electrode are all metal electrodes, and the metal electrodes are of a titanium / gold laminated composite structure. According to the invention, Schottky heterojunctions of graphene and germanium and Schottky heterojunctions of graphene and silicon are respectively constructed, and different barrier heights of the two heterojunctions are utilized, so that a 4 * 105 common emitter current gain, a 2 * 106 power gain and a prototype device with THz characteristic frequency theoretically are realized.

The application provides a forming method of an aluminum / magnesium / aluminum layered composite shell with grid ribs, and belongs to the technical field of non-ferrous metal preparation. According to the performance characteristics of aluminum alloy and magnesium alloy materials, a threaded groove structure is processed on the inner and outer surfaces of the intermediate layer magnesium alloy cylinder, a magnesium / aluminum composite shell of outer layer magnesium alloy and inner layer aluminum alloy is formed by high-energy ultrasonic assisted internal spinning, the high-energy ultrasonic is beneficial to the plastic deformation of the inner aluminum alloy, reduces the internal residual stress, and realizes the three-dimensional occlusion between magnesium and aluminum. Through current assisted external spinning, the outer layer aluminum alloy is formed on the outer surface of the magnesium / aluminum composite shell, the energy generated by the current assistance is beneficial to the plastic deformation of the magnesium alloy and the aluminum alloy, the forming of the inner rib of the shell is realized through the grid groove structure on the surface of the outer spinning machine core mold, and the pressure bearing strength of the shell is improved.

The application relates to the research and application field of semiconductor devices, in particular to an artificial synapse transistor based on thermal field regulation and a manufacturing method thereof. The artificial synapse transistor comprises a substrate, a carbon nanotube channel, a gate dielectric layer, a gate electrode and source-drain electrodes in contact with the carbon nanotube channel; the substrate is a silicon dioxide / heavily doped P-type silicon wafer / silicon dioxide laminated structure from bottom to top; the transistor channel is an irregular single-walled carbon nanotube layer obtained by water bath heating deposition; the gate dielectric layer is a hafnium oxide layer obtained by atomic layer deposition; and the gate electrode and the source-drain electrodes are a titanium / gold laminated composite structure from bottom to top. The application utilizes temperature regulation to regulate the charge trap state at the carbon nanotube channel and the top dielectric interface, realizes the gradual control of the device conductance polymorphism, and further realizes the effective regulation of the synapse weight.

The application relates to a Cu / Al layered composite gradient polycrystal modeling simulation method based on molecular dynamics, which comprises the following steps: generating a polycrystal node file, combining a unit cell to generate and merge a unit cell file, respectively constructing a gradient polycrystal metal model, a gradient polycrystal metal model containing a twin structure and two intermetallic compound polycrystal models; importing the four model files into a simulation tool, reading them in turn according to a preset priority order, setting the directional offset of each model along a set coordinate axis, running a script to generate a combined data file; relaxing and balancing the combined data file under a specified ensemble, importing the balanced file into a visualization tool, performing coloring processing according to the orientation, shape or size properties of the grains, and completing the construction and display of the multilayer composite gradient polycrystal model. The application solves the problems that the existing molecular dynamics modeling simulation method cannot accurately reproduce the Cu / Al4Cu9 / Al2Cu / Al gradient polycrystal structure of the Cu / Al layered composite material, the modeling steps are complex, and the parameter adjustment flexibility is insufficient.

The application discloses a kind of copper-aluminum composite strip continuous casting and rolling preparation methods of ultrasonic vibration assisted reinforcement, it is related to metal laminated composite material preparation technical field, including preheating treatment to copper strip and control liquidus temperature;The copper strip after preheating is introduced with liquidus into the casting and rolling crystallization area formed by casting and rolling roll and carries out solid-liquid casting and rolling composite;The composite strip obtained after casting and rolling is carried out hierarchical cooling;The composite strip after cooling is sequentially carried out cold rolling finishing and low-temperature stress relief annealing.The application fundamentally eliminates interface pore inclusion and oxide residue, solves the technical problem of large dispersion of bonding strength in conventional casting and rolling process;Grain refinement strengthening and interface structure optimization synergistically improve the interface mechanical properties;Effectively release the interface thermal stress generated by the difference of copper-aluminum thermal expansion coefficient, avoid interface cracking during cooling process;Bonding strength consistency is high, can meet the stringent requirements of new energy automobile battery connecting piece and other high reliability application fields.

This invention discloses an ultrasonic-mechanical coupled vibration rolling composite equipment and method for metal layered composite materials, belonging to the field of metal layered composite material preparation technology. The equipment includes a rolling mechanism, a mechanical vibration mechanism, and an ultrasonic vibration mechanism. The mechanical vibration mechanism is mounted on the side of the first work roll of the rolling mechanism via a crankshaft and connecting rod actuation, providing mechanical vibration to the first work roll to improve the interfacial misalignment rate and enhance the interfacial bonding strength of the metal layered composite material. The ultrasonic vibration mechanism is connected to the second work roll of the rolling mechanism, leveraging the volume effect of ultrasonic vibration to coordinate the deformation of the constituent metal materials. The method of this invention is simple in process, convenient to implement, has high production efficiency and low cost, and produces metal layered composite materials with high interfacial bonding strength, good geometric accuracy, low internal residual stress, and no anisotropy problems.

The utility model discloses a kind of laminated composite refractory bricks with concave-convex mortise and tenon structure, including by front-to-back butting combination refractory layer brick and heat insulation layer brick block, it is characterized by: the combination surface of the refractory layer brick block is equipped with several convex tenon, the combination surface of the heat insulation layer brick block is equipped with the mortise matched with convex tenon, the refractory layer brick block and the heat insulation layer brick block are combined as brick body, the side of the brick body is equipped with tenon, the other side is equipped with mortise hole matched with tenon, the tenon is also equipped with slot along horizontal direction, locking piece is equipped in the slot, the mortise hole is equipped with the notch matched with locking piece.The utility model utilizes wedge-shaped locking piece to realize mechanical interlocking in horizontal direction, replaces traditional mud slurry bonding, not only construction is convenient, connection firm, can effectively prevent brick body up and down wobble and left and right separation, also enhance the overall stability and thermal shock resistance of masonry, especially suitable for lining masonry of high-temperature industrial kiln.

The invention relates to an explosive welding preparation method of a high-strength steel / high-toughness steel layered composite material, and belongs to the technical field of metal layered composite materials. The maraging steel and the austenitic stainless steel which are subjected to solution treatment are subjected to explosive welding and aging treatment to obtain the composite material with matched strength and toughness. The maraging steel obtains a supersaturated low-carbon lath martensite structure through solution treatment, the hardness is low and the plasticity is good in the state, and a good bonding interface can be formed during explosive welding; aging treatment is integrally carried out after welding, so that nanoscale intermetallic compounds are separated out from martensite phases, the strength and toughness of a welded plate are remarkably improved, meanwhile, embrittlement of a welding heat affected zone is avoided, and overall toughness synergy of the composite material is achieved.

The invention provides a manufacturing method and system of a deep sea composite pressure-resistant structure. According to the manufacturing method, the ceramic layers and the titanium alloy layers in the ceramic-titanium alloy-carbon fiber laminated composite pressure-resistant structures are connected through a hot charging method, connection between the titanium alloy pressure-resistant structures is achieved through brazing, and complementary advantages of mechanical prestress and metallurgical connection are achieved. The carbon fiber reinforced composite material layer in the ceramic-titanium alloy-carbon fiber laminated composite pressure-resistant structure is manufactured through a carbon fiber winding method, so that carbon fibers are continuously laid, and the mechanical property of the ceramic-titanium alloy-carbon fiber laminated composite pressure-resistant structure is maintained. Finally, manufacturing of the ceramic-titanium alloy-carbon fiber laminated composite pressure-resistant structure is achieved, the manufacturing method and process of the multi-material laminated composite pressure-resistant structure are perfected, and the method has important engineering value for production and manufacturing of deep sea pressure-resistant structures.