54 results about "Cement composites" patented technology

The invention discloses a coal gangue-based reinforced cement composite material and a preparation method thereof, and relates to the technical field of building materials. The coal gangue-based reinforced cement composite material is prepared from a coal gangue-based reinforced admixture, calcium ion doped modified multi-walled carbon nanotubes, polypropylene fibers, P.O42.5 Portland cement, metakaolin, silica fume, a polycarboxylate superplasticizer and water, calcium ion doped modified multi-walled carbon nanotubes and a coal gangue based reinforced admixture are cooperatively added into a cement matrix, seamless filling from nanometer to micrometer is achieved, a tough interface transition area is formed, pressure is jointly borne by a compact matrix and a strong interface, the compressive strength and breaking strength of the material are remarkably enhanced, and meanwhile, the compressive strength and breaking strength of the material are greatly improved. Migration of moisture and ions is effectively blocked, and the anti-permeability performance of the material is improved.

The invention relates to the technical field of building materials, in particular to an energy-saving and environment-friendly recycled concrete pipe pile and a preparation method thereof. The recycled concrete is prepared from the following raw materials in parts by weight: 35 to 45 parts of recycled aggregate, 22 to 28 parts of P.O42.5 Portland cement, 6 to 9 parts of magnesium phosphate cement composite admixture, 18 to 22 parts of river sand, 1.0 to 1.3 parts of hydroxylated graphene-chitosan-nano zinc oxide ternary composite modifier, 6 to 8 parts of modified waste tire rubber powder, 0.5 to 0.8 part of basalt fiber and the like. The rubber powder is soaked in a sodium hydroxide solution and then treated with a maleic anhydride grafted polyethylene solution; the metakaolin is prepared by calcining coal gangue; the ternary modifier is prepared by grafting, crosslinking and dispersing; the magnesium phosphate admixture contains light calcined magnesia, ammonium dihydrogen phosphate and borax. The tubular pile is excellent in mechanical and durable performance and high in solid waste utilization rate, carbon emission and production energy consumption are reduced, the cost is reduced, the problems that a traditional regenerated tubular pile is low in strength and poor in environmental protection performance are solved, the tubular pile is suitable for multiple engineering scenes, and economic and environmental benefits are remarkable.

The invention relates to the technical field of preparation of bone cement, and particularly discloses a preparation method of a photo-thermal response type gold nanorod-bone cement composite material. The method comprises the following steps: synthesizing a gold seed solution; constructing a growth solution; controlling the growth of the nanorod; gradient centrifugal purification; carrying out surface ligand exchange (sulfydryl-PEG); preparing a bone cement composite material; curing and forming; gold nanorods (GNRs) are uniformly embedded into a polymethyl methacrylate (PMMA) bone cement matrix, so that the problems that free nanorods are easy to migrate and poor in bone targeting are solved. The local temperature can be accurately controlled, and damage to surrounding tissues is avoided. According to the invention, immunogen cell death (ICD) can be effectively induced, and anti-tumor immune response can be activated. According to the invention, enough mechanical support can be provided, and the stability after implantation is ensured.

The utility model provides an automatic material conveying device for cement composite powder production, which belongs to the technical field of cement composite powder production and comprises a raw material refining cylinder, a material conveying device, a material conveying device and a material conveying device. The screening and pushing mechanism comprises a plurality of upper screening grooves, a plurality of lower screening grooves, a pushing plate, a plurality of material crushing plates, a raw material conveying barrel, a discharge port, a cylinder fixing sleeve and a driving cylinder, so that automatic operation of refining, screening and conveying of raw materials is realized, the production efficiency is improved, the labor cost is reduced, and the production efficiency is improved. And meanwhile, the quality stability of the product is also ensured.

The present invention relates to a mortar composition that is a cement composite comprising aminated cellulose nanofibers in which amine functional groups are introduced into cellulose nanofibers. Compared to mortar that does not contain aminated cellulose, the invention can provide a mortar composition capable of producing a mortar with significantly superior strength by forming a new crystal structure and hydrate inside the mortar.

The invention discloses a preparation process of an unfired building block containing stone powder, and belongs to the field of building solid waste recycling. The process comprises the following steps: performing graded crushing to obtain four-stage construction waste aggregate, modifying the four-stage construction waste aggregate with a silane coupling agent-cement composite coating agent, mixing the modified four-stage construction waste aggregate with superfine stone powder according to gradient grading, and performing layered vibration pressure forming and baking-free curing to obtain the building block. According to the invention, three-stage process synergy is adopted: graded crushing is adopted to optimize particle size distribution, surface coating is adopted to enhance interface bonding, gradient grading is adopted to improve structural compactness, 28d compressive strength of the obtained building block is greater than or equal to 15MPa, solid waste mixing amount is greater than or equal to 90%, energy consumption is reduced by 80% compared with that of a traditional process, and carbon emission is reduced by more than 60%. The process is suitable for large-scale production of high-performance unfired wall materials, and has remarkable environmental protection and economic benefits.

The present application relates to the technical field of well cementation evaluation, and particularly relates to a double casing well cementation quality evaluation method, device, equipment, medium and product, wherein the method comprises the following steps: performing logging on a cemented well section of a double casing well to obtain casing-cement composite mode wave data of the cemented well section; performing logging on a to-be-evaluated well section of the double casing well to obtain casing-cement composite mode wave data of the to-be-evaluated well section; comparing the casing-cement composite mode wave data of the to-be-evaluated well section with the casing-cement composite mode wave data of the cemented well section to evaluate the cementation quality of the to-be-evaluated well section of the double casing well; and the cementation quality of the double casing well can be comprehensively evaluated.

The utility model relates to a wear-resistant bimetallic plate structure which comprises a tungsten-cobalt alloy wear-resistant plate and a steel substrate, and a brazing layer or a high-temperature-resistant epoxy structural adhesive layer is arranged between the tungsten-cobalt alloy wear-resistant plate and the steel substrate. A plurality of bolts are pre-buried in the tungsten-cobalt alloy wear-resisting plate, and one end of each bolt extends to the steel base plate and is pre-tightened through a nut; the embedded depth of the bolt is 1 / 3-1 / 2 of the wall thickness of the tungsten-cobalt alloy wear-resisting plate and is not less than 3 times of the diameter of the bolt; the surface of the bolt is coated with a high-temperature-resistant coating, and the thickness of the high-temperature-resistant coating ranges from 0.1 mm to 0.3 mm. According to the utility model, through the bolt and brazing / cementing composite structure design, the problem that the traditional tungsten-cobalt alloy bimetallic plate is easy to peel off and lose efficacy due to insufficient interface bonding force is solved, the connection strength, reliability and applicability are obviously improved, and the bimetallic plate can stably operate under various complex working conditions.

The present invention relates to: a repair composition for a self-heating cement composite material; and a repair method using same The present invention provides a repair composition for a self-heating composite material, comprising: calcium sulfoaluminate cement, calcium aluminate cement, a conductive filler, and a fluidizing agent

The application discloses a rubber-cement composite material surface modifier optimization method based on molecular simulation, which comprises the following steps: based on molecular dynamics simulation, a full-atom numerical model for characterizing the physicochemical properties of cement matrix, rubber and modifier material is constructed by using Materials Studio software; based on the full-atom numerical model, the Gibbs free energy of the material system is calculated by using a quantum mechanics method to predict whether chemical reaction or physical adsorption behavior occurs between the selected modifier and the two types of materials of rubber and cement, and finally a rubber-cement-based composite material system model before and after the treatment of the modifier is constructed; the free volume fraction and atomic concentration of the composite material system model before and after the modification are analyzed on a microscale to quantitatively evaluate the effect of the modifier on the material performance, and then the optimal surface modifier is determined. The application can construct a numerical model accurately reflecting the material properties and analyze and optimize the material surface / interface modifier.

This invention discloses a multi-layered magnesium-based lightweight composite board and its preparation method. The composite board comprises a slurry layer, a reinforcing layer, and a lightweight layer, and is obtained through a multi-layered structure of slurry layer-reinforcing layer-lightweight layer-reinforcing layer-slurry layer. The reinforcing layer is a glass fiber mesh. The slurry layer is obtained by stirring a magnesium chloride solution and mixture A. The lightweight layer slurry is obtained by stirring a magnesium chloride solution, mixture B, and a foaming agent. The magnesium chloride solution is prepared by mixing magnesium chloride, citric acid, and water. Mixture A is obtained by dry-mixing bamboo fiber, lightly calcined magnesium oxide, and a thickener. Mixture B is obtained by dry-mixing bamboo fiber, lightly calcined magnesium oxide, a thickener, a foam stabilizer, an activator, and a foaming agent. Compared to ordinary lightweight composite boards, the lightweight composite board of this invention exhibits significantly enhanced flexural strength and possesses properties such as being environmentally friendly, lightweight, non-combustible, and energy-efficient, thus expanding the application of magnesium-based cement composite boards.

The utility model discloses an energy-saving type cement composite insulation board for a green building, relates to the technical field of cement composite insulation boards, and aims to solve the technical problems that gaps are easy to form in the cement composite insulation board and the insulation effect is influenced, the energy-saving type cement composite insulation board comprises a cement composite board located on the outermost layer, and an anti-crack steel wire mesh layer is arranged on one side of the cement composite board. A heat preservation layer adheres to one side of the anti-crack steel wire mesh layer, a sound insulation layer is fixed to one side of the heat preservation layer, a gypsum layer is arranged on one side of the sound insulation layer, a first connecting shell and a second connecting shell are arranged at the top and the bottom of the heat preservation layer correspondingly, and reinforcing structures are arranged at the two ends of the first connecting shell and the two ends of the second connecting shell correspondingly. And a sealing structure is arranged between the interiors of the first connecting shell and the second connecting shell. The reinforcing structure and the sealing structure are arranged on the first connecting shell and the second connecting shell of the insulation board, and the expansion piece is heated to expand to block the gap, so that the insulation board is ensured to be tightly connected during long-term use, and good insulation performance is maintained.

A hemp-magnesium oxychloride cement composite material and a preparation method thereof, which relate to a cement composite material and a preparation method thereof. The present application aims at solving the problem that the prior art cannot reduce the damage of internal stress concentration to the mechanical strength of MOC while fully exerting the water resistance improvement effect of phosphonic acid modifier on MOC. The hemp-magnesium oxychloride cement composite material is prepared from magnesium chloride hexahydrate, magnesium oxide, diphosphoric acid and hemp straw. The method comprises the following steps: 1, uniformly mixing magnesium chloride hexahydrate, distilled water and a solution containing diphosphoric acid to obtain a mixed system; 2, dry mixing hemp straw and magnesium oxide powder, and then adding the mixture into the mixed system to stir and dissolve; and 3, solidifying. The present application is used for hemp-magnesium oxychloride cement composite material and preparation thereof.

One embodiment of the present invention provides a method and a system for preparing a cement composite, which predict the production amount of CO2-AFm according to the mixing on the basis of the chemical components of a binder constituting the cement composite, and calculate, therethrough, the optimal mixing ratio of materials such as Portland cement, limestone fine powder and calcined clay, thereby setting the mixing ratio of the cement composite containing a high amount of limestone and having excellent performance.

An automated robotic printing device for additive manufacturing or three-dimensional printing of an engineered cementitious composite (ECC) structure is provided. The device has a feeding system and an automated extrusion system configured to receive the ECC composition from the feeding system and deposit the ECC composition onto a target. The automated extrusion system comprising at least one robotic device comprising a tiltable and steerable deposition head that comprises an extrusion nozzle having a substantially rectangular opening and at least one shaping blade at a terminal end to shape and deposit the cementitious composition onto a target. Methods of additive manufacturing of a structure from the ECC compositions are also provided.

The invention relates to the technical field of intelligent manufacturing, and discloses an intelligent manufacturing method and system for a foamed cement composite board. The method comprises the steps that a foam quality analysis model is adopted to analyze a foam solution, and a foam analysis result is obtained; according to the foam analysis result and the slurry viscosity value, an optimal mixing parameter set of the foam solution and the cement slurry base material is obtained, a mixed slurry quality analysis model is adopted to analyze the foamed cement mixed slurry, a mixed slurry quality analysis result is obtained, and therefore pouring parameters of the foamed cement mixed slurry are controlled. And according to the pouring amount data, the slab state data and the slab space-time reference data, a virtual maintenance model is constructed in the intelligent manufacturing digital twin platform to generate an optimal temperature and humidity maintenance curve, and according to the optimal temperature and humidity maintenance curve, the temperature and humidity set value of the maintenance kiln is dynamically adjusted. According to the method provided by the invention, the self-adaptability and the intelligent level of the production process of the foamed cement composite board are improved, and the product quality is improved.

The invention discloses a magnesium oxide board based on bamboo filament filling and a preparation process thereof, and belongs to the technical field of light building materials, the magnesium oxide board comprises modified bamboo filaments, modified diatomite, acetylated modified starch, prepared premixed slurry and bamboo filament magnesium oxysulfate cement composite slurry. And mold closing and hot pressing, overlapping, mold locking, curing and curing, drying, cutting and polishing are carried out. The bamboo filaments, the modified starch and the modified diatomite synergistically optimize the internal filling structure, so that the deformation risk in the use process of the board is greatly reduced, the structural form can be kept stable even if the board bears external force for a long time, and the problem of local looseness or overall deformation caused by poor material combination is avoided. The sectional type hot pressing technology enables the compactness of materials in the plate to be uniform, the local impact resistance is strengthened, instant acting force brought by concentrated loads can be resisted, and the overall uniform bearing performance is improved.

The invention relates to the technical field of building material production, in particular to a magnesium gel composite production quantitative feeding and mixing device which comprises a supporting frame, a stirring barrel is slidably connected to the upper surface of the supporting frame, stirring blades are rotatably connected to the inner side of the stirring barrel, and extension plates are symmetrically slidably connected to the interiors of the two sides of the stirring blades. A sliding disc is slidably connected to the outer surface of the top of the stirring blade, the ends, close to each other, of the connecting rods are rotatably connected to the outer surface of the sliding disc, the outer surface of the top of the stirring blade is fixedly sleeved with a compression spring, and the top end of the compression spring is fixedly connected to the lower surface of the sliding disc. The extension plates are unfolded towards the two sides, the unfolded ends of the extension plates can make contact with a material area near the inner wall of the mixing bin, common side wall mixing dead corners in the traditional stirring process are effectively eliminated, magnesium oxide, a magnesium chloride solution, filler and other components are fully mixed, and therefore the mixing uniformity is remarkably improved.

The invention relates to the technical field of composite blanket preparation, and discloses multi-layer cement composite blanket manufacturing equipment which comprises a base, a first discharging roll and a second discharging roll are installed at the top of the base, a material distributing opening is fixedly connected into the base, and a rolling assembly, a vibration assembly and a smoothing assembly are arranged in the base. The grinding assembly comprises a grinding roller, the vibration assembly comprises a vibration hammer and a vibration plate, the smoothing assembly comprises a threaded rod and a moving plate, and the material distributing opening is used for conveying raw material particles to composite blanket raw materials. A rolling assembly can drive a rolling roller to rotate and move, the rolling roller can compact raw material particles and composite blanket raw materials through rotation, the rolling roller can move in the rotating process to convert the raw material particles from one-way stress accumulation into multi-way flow filling, and the raw material particles more fully permeate into gaps of the composite blanket raw materials; and meanwhile, the contact between the rolling rollers and the composite blanket raw materials can be uniformly distributed on the rolling rollers, so that the probability of fiber breakage and fuzzing is reduced.

The invention relates to the technical field of building materials, in particular to a high-ductility and high-elasticity cement composite board and a manufacturing process thereof, and the high-ductility and high-elasticity cement composite board is prepared by laying and treating bottom slurry, main materials, surface slurry and alkali-resistant glass fiber gridding cloth through the steps of vibration, extrusion, rolling, accurate thickness control and the like. The material ratio and the technological process can be optimized, the mechanical property and the physical property of the cement composite board are remarkably improved, the cement composite board has excellent tensile resistance, fracture resistance and impact resistance and good ductility and stability, and meanwhile light weight, environment friendliness and construction convenience are achieved. The composite board is suitable for the fields of building interior and exterior wall structures, various container floors, indoor and outdoor decoration, fire prevention, water prevention and the like, and meets diversified and multifunctional requirements.

The invention relates to the technical field of cement composite material engineering, and particularly provides a design method for improving functionality of an intelligent cement-based material suitable for a carbon nanomaterial in order to solve the problem that the influence of the type of the carbon nanomaterial on the performance of the cement-based material is not clear at present. The intelligent cement composite material comprises cement, water, a carbon nanomaterial, a polycarboxylate superplasticizer and carbon fibers. After the intelligent cement composite material is electrified, electrons are not limited to hole conduction and ion conduction any more, the transmission efficiency of the electrons is greatly improved, the conductivity is optimized, and a solid foundation is laid for functional application of the intelligent cement composite material. When the conductivity of the cement composite material needs to be improved, graphene is adopted as the carbon nanomaterial. When the heat-conducting property of the cement composite material needs to be improved, graphene is adopted as the carbon nanomaterial. When the force sensitivity of the cement composite material needs to be improved, carbon nano tubes are adopted as the carbon nano materials.

The invention relates to the technical field of civil engineering materials, and discloses a preparation method of a municipal sludge ash resource utilization water-resistant magnesium oxysulfate cement composite material, which is specifically implemented according to the following steps: step 1, weighing and preparing raw materials, and preparing the raw materials at room temperature; the preparation method comprises the following steps: respectively weighing the following raw materials in percentage by mass: 37.31%-47.94% of light calcined magnesia, 23.83%-23.84% of magnesium sulfate heptahydrate, 5.33%-15.99% of municipal sludge ash, 22.66%-22.68% of mixing water and 0.19%-0.24% of citric acid; the water-resistant magnesium oxysulfate cement composite material for resource utilization of municipal sludge ash can efficiently absorb a large amount of municipal sludge ash, and original waste sludge ash is converted into a material with practical value. Therefore, the land area possibly occupied by the municipal sludge ash is remarkably reduced, the problem of land resource shortage is effectively relieved, and a series of environmental risks caused by stacking of the sludge ash are greatly reduced. Meanwhile, the preparation process is simple, the production cost is low, the energy consumption is reduced, and environmental friendliness is really achieved.

This utility model relates to the field of prefabricated panel technology and discloses a composite thermal insulation and soundproof floor prefabricated panel, including a base layer made of crack-resistant mortar. Orthogonally distributed fiberglass mesh is laid within the base layer, and the fiberglass mesh is bonded to the base layer with cement mortar. Multiple second connecting plates are fixedly connected to the upper surface of the base layer. A functional layer, made of foamed cement composite board or graphite polystyrene board, is provided on the upper surface of the base layer. A protective layer, made of cement mortar, is provided on the outer wall of the functional layer. A corrugated sound insulation felt is embedded inside the functional layer. The foamed cement composite board or graphite polystyrene board of the functional layer provides high-efficiency thermal insulation performance. The corrugated sound insulation felt embedded inside increases the sound wave reflection path through its undulating structure. The 2-3mm thick sound insulation felt, combined with a 5-8mm wave peak height, can effectively absorb mid-to-high frequency noise of 125-4000Hz. The 200-300mm interval corrugated design allows the sound insulation felt to form a continuous sound barrier within the functional layer, reducing solid-borne sound transmission between floors.

The invention discloses a composite reinforced house waterproof repairing system and a construction method, and relates to the technical field of building waterproof engineering, the system is sequentially provided with a bio-based permeable sealing layer, a flexible reinforced coating layer, a semi-rigid transition layer, a rigid main waterproof layer and a functional surface layer from bottom to top; the bio-based permeable sealing layer is a lignin modified waterborne epoxy primer layer; the flexible reinforced coating layer is formed by compounding a high-elastic water-based biological asphalt coating, chitin fiber reinforced cloth and a high-elastic water-based biological asphalt coating of the same type; the semi-rigid transition layer is a biological asphalt-cement composite coating layer; according to the invention, a whole-process bio-based modified multi-layer composite waterproof repairing structure is constructed, and bio-based raw materials are applied, so that low environmental load and performance complementation of the material are realized; a standardized modular construction method is formulated, construction is accurate, the waterproof effect is enhanced, rigid-flexible combination of a multi-layer structure is achieved, the deformation problem of a base layer is avoided, the overall durability is improved, and the maintenance cost is reduced.

The invention relates to the field of cementing materials, and particularly discloses a waste residue cementing composite material and a preparation method thereof. The waste residue cemented composite material comprises the following raw materials in parts by weight: 30-40 parts of mineral powder, 20-30 parts of waste brick powder, 10-20 parts of tailings, 5-10 parts of an alkaline material, 1-3 parts of a water-retaining agent, 1-3 parts of an activating agent, 5-10 parts of a water-soluble organic polymer and 3-5 parts of a toughening material, the water-soluble organic polymer is prepared from the following raw materials: 2-acrylamide-2-methylpropanesulfonic acid, acrylic acid and acrylamide; the water-soluble organic polymer prepared from the 2-acrylamide-2-methylpropanesulfonic acid, the acrylic acid and the acrylamide is adopted, so that the water loss degree of the composite material is delayed, and the phenomenon that the composite material cracks due to water loss is inhibited.

A cementitious nano-engineered method and resultant composite includes a modified aggregate material configured from a plurality of fine aggregate particles (FAg) particles pretreated with a graphene oxide (GO), wherein the graphene oxide (GO) is further arranged as a plurality of crosslinked structures that arranges for a refined interfacial zone (ITZ) with a thickness of 3 μm to 10 μm; and a water / cement (w / c) ratio content configured with the modified aggregate material. The interface of modified aggregate and a cementitious phase largely determines the mechanical properties and durability performances of cement mortar and concrete. Moreover, the methods and composites also provide for a targeted and more efficient approach to develop smart cement composites through nanoengineering of the interfacial transition zone.

The utility model relates to the technical field of fly ash processing, and discloses a fly ash pretreatment device for cement composite material production, which comprises a casing, a collecting drawer is slidably connected to the inner bottom wall of the casing, a grinding component is arranged in the casing, a shaking screening component is arranged in the casing, and the grinding component and the shaking screening component are arranged in the casing. A circulating grinding assembly is arranged on the outer side of the machine shell, a dust suction assembly is arranged on the outer side of the machine shell and comprises a collecting box, the outer side of the collecting box is fixedly connected to the outer side of the machine shell, and a suction pipe is fixedly connected to the top of the collecting box. According to the utility model, when the collection drawer is taken out, the fan is started to collect dust, the dust is intercepted into the dust collection drawer through the filter screen, when the filter screen is replaced, the handle is pulled out of the insertion block, the hand is loosened after replacement, and the insertion block is reset, so that the dust collection when the collection drawer is taken out is realized, the dust is prevented from escaping to pollute the environment and being inhaled by workers, and the health of the workers is ensured not to be harmed; meanwhile, the filter screen is convenient to replace, and continuous and effective work of the fan is guaranteed.

The application discloses a sound insulation bamboo powder magnesium oxysulfate cement composite material and a preparation method, and belongs to the technical field of building materials. The composite material takes magnesium oxysulfate cement as a matrix, and is mixed with alkali-treated bamboo powder and rubber powder as functional components. By alkali treatment of the bamboo powder, more active hydroxyl groups are exposed on the surface of the bamboo powder, the chemical bonding force between the bamboo powder and the cement matrix is enhanced, the interface compatibility is improved, the bamboo powder surface is roughened, and then a mechanical interlocking structure is formed with the rubber powder, and the uniform dispersion and synergistic effect of the two in the cement are promoted. On the basis of improving the mechanical properties of the composite material, the porous sound wave absorption characteristics of the alkali-treated bamboo powder and the viscoelastic damping effect of the rubber powder are utilized to construct a multi-scale sound wave dissipation system, so that the sound insulation performance of the material in the full frequency range is optimized.

The disclosure provides a solar evaporation substrate for recovering water from a solution. The substrate includes a porous support and an activated carbon-cement composite. The disclosure also provides a solar thermal evaporation apparatus based on a novel substrate. The apparatus includes an open tray, a solution, a solar evaporation substrate, an enclosure and a plurality of collectors. The disclosure further provides a method for preparing the substrate from activated carbon-cement composite coated porous support and that is used to heat the solution by harvesting solar energy. The apparatus and method is chemical free, cost effective and gives a high evaporation rate of 2.4 kg / m2 h under one-sun illumination with zero carbon footprint.

The invention discloses a liquid metal cement composite material proportion determination method and system, and is applied to the technical field of composite material manufacturing, and the method comprises the steps: obtaining a plurality of key parameters and parameter ranges corresponding to a liquid metal component and a cement matrix to obtain a key parameter set; performing multi-target performance simulation to obtain a plurality of candidate key parameter combinations; calculating a stress concentration factor of each candidate key parameter combination; determining the candidate key parameter combination corresponding to the minimum stress concentration factor as an initial composite material proportioning scheme; when the minimum stress concentration factor is lower than a preset safety threshold value, determining the initial composite material proportioning scheme as a final composite material proportioning scheme; and when the minimum stress concentration factor is not lower than a preset safety threshold value, adjusting the candidate key parameter combination until the obtained stress concentration factor is lower than the preset safety threshold value. According to the method, the accuracy of the ratio of the composite material is effectively improved by fusing performance prediction and micromechanical analysis.