111 results about "Composite repairs" patented technology

The invention relates to a high-performance polymer-cement-based composite repair material and a preparation method thereof, and the high-performance polymer-cement-based composite repair material comprises the following components by mass: 690-710 parts of cement; 130 to 150 parts of fly ash; 45 to 55 parts of silica fume; 200 to 210 parts of mixing water; 950 to 1050 parts of fine aggregate; 21-23 parts of a modified polymer; 9-10 parts of an expanding agent; 4-5 parts of a water reducing agent; 5-6 parts of modified fiber; and 0.16 to 0.18 part of a defoaming agent. The nano-toughened modified polymer and the modified fiber are used, the nano-modified polymer can improve the microstructure of the repair material, the modified fiber can limit shrinkage of the repair material and enhance the crack resistance of a matrix, the toughness and the mechanical property of the repair material can be effectively improved through the synergistic effect of the nano-modified polymer and the modified fiber, and it is guaranteed that the repair material does not crack in the early stage.

The invention discloses a stainless steel stator blade composite repairing method based on model reconstruction, which is characterized by comprising the following steps of: acquiring a blade profile section and parameters of a stainless steel stator blade; blade profile size data of a new blade are collected, and a point cloud model is established; acquiring an optimal point cloud model based on the data of the point cloud model, and establishing a blade reference grid model as a blade modification standard model; adopting UG software to reconstruct the blade modification standard model; detecting an old blade of which the blade profile contour is within the baseline deviation range of the reference model according to the reconstructed blade modification standard model for repairing; and blade corrosion pit repairing and chord length repairing are conducted on the old blade based on the blade modification standard model, and blade modification and X-ray detection are conducted after repairing is completed. According to the method, the size precision of the established blade modification standard model is within 0.02 mm; the repairing area can effectively avoid the problem of secondary corrosion, and the service life of the blade is prolonged.

The utility model discloses a net column multi-layer composite repairing wall block for an old outer wall, and relates to the technical field of outer wall repairing. A steel mesh is arranged on the outer side wall of the first composite cement layer, a second composite cement layer is installed on the outer side wall of the steel mesh, a heat preservation structural body is arranged on the outer side wall of the second composite cement layer, a pressure-resistant plate is arranged on the outer side wall of the heat preservation structural body, a decorative coating is arranged on the outer side wall of the pressure-resistant plate, and a waterproof layer is arranged on the outer side wall of the decorative coating. The four threaded sleeve bodies are arranged at the four corners in the first composite cement layer, the steel mesh and the second composite cement layer correspondingly, and one end of each fixed column body is installed in the corresponding threaded sleeve body; according to the utility model, the thermal insulation structural body is adopted to improve the thermal insulation property after repairing, meanwhile, the pressure-resistant plate is adopted to improve the overall strength, the decorative coating is adopted to realize decoration, and the waterproof layer is adopted to improve the waterproof property; according to the repairing wall block, the original old wall body is connected through the fixing column body, the phenomenon that the repairing wall block falls off is not prone to occurring after connection, and the stability after installation can be improved.

The invention relates to a Fenton-like oxidation treatment method, in particular to application of a self-activated Fenton-like composite repair material, the composite repair material is CaO2 (at) Fe3O4 (at) BIP-BC, western blot biochar is used as a matrix, and magnetite and calcium peroxide are sequentially loaded on the surface of the matrix. Compared with the prior art, the method has the advantages that the high efficiency and the long-term effect of Fenton-like are improved through biochar surface active groups and calcium peroxide, the selectivity of removing target harmful bacteria and harmful bacteria genes is improved through western blot, and the activating agent and the oxidizing agent are added at the same time, so that the use cost and the operation complexity are reduced. According to the method, the defects that traditional Fenton-like oxidation treatment is poor in harmful bacterium and harmful bacterium gene obligate removal effect, short in treatment time, high in required dosage and serious in secondary pollution, and an activating agent and an oxidizing agent need to be used separately are effectively overcome; the efficient and long-acting remediation of soil and water bodies polluted by harmful bacteria and harmful bacteria genes through the Fenton-like reaction is realized.

The invention belongs to the field of soil remediation materials, and particularly relates to a humic acid composite remediation material for a coal chemical industry polluted site and a preparation method of the humic acid composite remediation material. The method comprises the following steps: 1) uniformly mixing raw materials, alkali liquor and phosphide, standing, taking supernate, adding acid liquor to adjust the pH value of a system, and performing suction filtration to obtain a humic acid solution; 2) drying the solid obtained by the standing operation in the step 1), adding an acid solution, uniformly mixing, filtering, cleaning, adding a strong acid for corrosion, filtering again, cleaning, and drying to obtain a base material; and (3) heating the organic raw material, the emulsifier and the solvent, adding the mixed solution of the acyclic carboxylic acid and the humic acid solution while keeping stirring, adding the initiator, performing thermal reaction, adding the base material while being hot, uniformly mixing, drying and grinding to obtain the humic acid composite repair material. The humic acid composite remediation material can effectively improve the structure and quality of soil and effectively improve the soil remediation efficiency.

The invention relates to the technical field of civil engineering material detection, and particularly discloses a performance detection method of self-repairing concrete for civil engineering, which comprises the following steps: acquiring micro-deformation field data of a crack area in real time in a crack induction process, and constructing a joint simulation model; predicting an initial contact state between a crack and a repair material based on the model, extracting interface pressure distribution and effective bonding area change information, and calculating an interface bonding failure risk characteristic value through an improved fuzzy C-means clustering algorithm; a periodic load is applied to a preset crack area, a closed response signal is collected, and a multi-scale crack expansion coupling degree characteristic value is constructed to quantify coordination between microscopic filling and macroscopic recovery; fusing the two feature values into a composite repair quality feature vector, inputting the composite repair quality feature vector into a recognition model based on an improved deep residual network, recognizing and repairing a blind area, and generating a spatial positioning tag map; and finally, dynamically adjusting the monitoring path and the loading frequency according to an identification result.

The invention discloses an efficient garden soil remediation device based on garden soil texture, and belongs to the technical field of garden soil remediation. Comprising a walking vehicle body, a soil transition unit, a fixed-thickness spraying unit, a smashing and throwing unit, a stone throwing unit, a powder throwing unit and a rotary tillage feeding part. The soil transition unit comprises a guide-in conveying belt and a first material throwing conveying belt, and a second material throwing conveying belt is arranged under the first material throwing conveying belt; a blanking gap is formed between the first material throwing conveying belt and the second material throwing conveying belt; the fixed-thickness spraying unit comprises a material collecting channel which is fixed to the output end of the guiding-in conveying belt and the periphery of the first material throwing conveying belt in a wrapping mode. The second material throwing conveying belt movably penetrates through the bottom of the inner side of the material collecting channel. According to the efficient garden soil remediation device based on the garden soil quality, soil blocks can be scattered, stone blocks can be directly thrown, soil in-situ remediation is achieved, an interlayer composite remediation system can be formed on the soil surface, and the remediation effect is good.

The invention provides self-repairing foam concrete and a preparation method thereof, and belongs to the technical field of concrete. The preparation method comprises the following steps: carrying out hydroxylation treatment on stone powder to obtain hydroxyl stone powder, modifying sodium alginate by using a silane coupling agent to obtain a grafted copolymer, compounding the hydroxyl stone powder, the grafted copolymer and nano silicon dioxide to obtain a composite carrier, and inoculating bacillus pasteurii onto the composite carrier; 300-400 parts by mass of cement, 100-150 parts by mass of the composite carrier inoculated with the bacillus pasteurii, 1 part by mass of a composite foaming agent and 10 parts by mass of urea are mixed according to the water-binder ratio of 0.35-0.45, and the self-repairing foam concrete is obtained. The self-repairing foam concrete is prepared by a one-step method through an innovative microbial carrier design and a composite repairing mechanism, and the problem that microbial inoculation and self-repairing foaming in composite concrete in the prior art need to be carried out step by step is solved.

The invention relates to a Fenton-like composite material, in particular to a self-activated Fenton-like composite repair material as well as a preparation method and application thereof, the composite repair material is CaO2 (at) Fe3O4 (at) BIP-BC, western blot biochar is taken as a matrix, and magnetite serving as an activating agent and calcium peroxide serving as a slow-release oxidizing agent are sequentially loaded on the surface. Compared with the prior art, the method has the advantages that the efficiency and the long-term effect of Fenton-like are improved through the biochar surface active groups and the calcium peroxide, the selectivity of removing target harmful bacteria and harmful bacteria genes is improved through western blot, and the biochar loads the calcium peroxide and the magnetite at the same time, so that an activating agent and an oxidizing agent are added at the same time; and the use cost and the operation complexity are reduced. The method overcomes the defects that the traditional Fenton-like oxidation treatment has poor obligate removal effect on harmful bacteria and harmful bacteria genes in the environment, the treatment time is short, the required dosage is high, the secondary pollution is serious, and an activating agent and an oxidizing agent need to be used separately.

The application discloses a kind of marine reinforced concrete crack fast self-repairing agent and preparation method thereof, the self-repairing agent includes the following components by mass fraction: polyacrylic acid hydrogel 20-30%, microorganism 5-10%, betaine 20-30%, calcium salt 15-25%, aluminum salt 20-30%.Its preparation method is: acrylic acid monomer is mixed with crosslinking agent, initiator, auxiliary crosslinking agent;Aluminum salt, acrylic acid are mixed to obtain aluminum acrylate;The two are mixed with microorganism and betaine, stirring and heating, and microorganism-polyacrylic acid hydrogel is prepared;After drying, it is broken, and calcium salt powder is wrapped, then immersed in polymer emulsion, dried, and prepared.The application can quickly block cracks by forming organic-inorganic composite repair products, solidify harmful media, release beneficial ions, achieve the dual goal of crack self-repairing and reinforcement corrosion inhibition.

The invention relates to the technical field of remanufacturing, in particular to a beryllium bronze piston part inner wall damage repairing method which comprises the following specific steps: S1, defect inspection; s2, preparing an electrode bar; s3, electric spark coating repair is carried out; s4, remelting by a cold welding machine; s5, heat treatment; s6, honing an inner hole; s7, repairing and verifying; according to the method, a method of electric spark coating repairing and cold welding composite repairing is adopted, the problem that an electric spark coating repairing layer is not compact is solved, the problem that wire feeding is difficult in the cold welding inner hole repairing process is solved, the problem that an overlong electrode bar rotating at a high speed shakes in the electric spark coating repairing process is solved by adopting the specially-made electrode bar, and the welding quality is improved. The metallographic phase of the repair layer does not have cracks and incomplete fusion defects, the repair layer is metallurgically bonded with the substrate, and the hardness of the repair layer reaches more than 90% of that of the substrate of the plate.

The invention relates to composite repair. A method for repairing a thermoplastic composite part is presented. A heating element impregnated with a thermoplastic material is placed onto the repair area of the thermoplastic composite part. The thermoplastic material of the heating element is adhered to the repair area by generating heat in the heating element from an electrical current applied to the heating element. After the heating element is adhered to the repair area, a repair patch is placed on the heating element. A current is applied to the heating element to heat the repair patch to a patch processing temperature.

The invention relates to the technical field of underground water remediation, in particular to a biochar-loaded pyrrhotite composite remediation agent as well as a preparation method and application thereof. The preparation method of the biochar-loaded pyrrhotite composite repairing agent provided by the invention comprises the following steps: S1, crushing, pyrolyzing, cooling, grinding and sieving carbon-based biomass to obtain a BC material; s2, dissolving ferric salt, ferrous salt, a sulfur source and a BC material, uniformly stirring, heating, cooling to room temperature, washing and drying to obtain a composite repairing agent; in the composite repairing agent, the molar ratio of Fe7S8 to BC is 1: (1-5). According to the method provided by the invention, Fe7S8 is uniformly dispersed and loaded on the surface of BC with a unique pore structure (agglomeration is effectively relieved) through a simple and convenient one-pot solvothermal synthesis method.

The present disclosure provides repair systems, repair components, and methods for repairing composite structure systems using a set number of prefabricated repair components including a repair component and various shims which are fabricated to repair multiple composite members in a composite structure system.

The invention discloses an evaluation method, device and equipment for composite material repair consumables and a medium, and relates to the technical field of composite material structure maintenance. A series of controllable disturbance factors are introduced around reference process parameters to simulate actual fluctuation, and the system tests the performance of the repair consumables under non-ideal process conditions, so that the safety boundary of qualified products produced by the repair consumables is determined, and a more comprehensive and practical evaluation system is provided. A process window volume is introduced as an objective and comparable robustness quantitative index, and a process space boundary is efficiently predicted by means of a Gaussian process regression model, so that the problems of high cost and low efficiency of a traditional exhaustion test method are avoided. According to the method, the process robustness for determining the stability of the repair consumables in the actual maintenance environment is converted into the quantifiable and comparable equivalent curing process window and the measurement value thereof, scientific screening of the repair consumables is realized, and the quality risk in actual maintenance operation is remarkably reduced.

The application discloses a seven-layer gradient function composite repairing construction method for concrete freeze-thaw damage, and the method comprises the following steps: investigating a freeze-thaw damage area, determining damage depth and range, removing all loose, peeled and cracked concrete by using mechanical tools until the base surface is exposed, carrying out rust removal and corrosion prevention treatment on the exposed steel bars, cleaning the interface by using high-pressure water jet, removing dust and debris, and coating, in sequence, a primer, anti-freezing repair mortar, nano-enhanced coating, cement-based anti-freezing, waterproof and corrosion-proof protective coating, alkali-resistant sealing primer and protective coating on the base surface, wherein the protective coating is coated in two layers, the damaged base body is reconstructed in a gradient mode, the structural integrity is restored, a long-acting protection system with the functions of active protection and passive barrier is constructed from inside to outside and with gradient transition of material properties, and the service life of the repaired structure in an extreme environment is significantly prolonged.

A composite structure and methods are presented. A method of performing a composite repair is presented. A fiber mixture is forced through a composite structure and into a void of the composite structure, the fiber mixture comprising an adhesive and a plurality of electromagnetically steerable fibers. An electromagnetic field is applied to the fiber mixture within the void of the composite structure. The adhesive of the fiber mixture is cured to form the composite repair with structural capabilities.

The invention provides a characterization method and a characterization device for time-varying characteristics of mechanical properties of a composite material in a curing process. The characterization method comprises the following steps: step 1, obtaining reaction enthalpy released by complete curing of a to-be-detected prepreg with unit mass; 2, obtaining multiple groups of compression samples and DSC samples; 3, curing the compression sample and the DSC sample at the same time by adopting a composite material repairing instrument, terminating the curing process of each group of samples at different preset time, and recording the temperature T of each group of samples at the curing termination; step 4, for each group of samples, measuring the compression modulus of the compressed sample at the corresponding temperature T after the step 3 by using a mechanical testing machine, and obtaining the curing degree of the DSC sample after the step 3; 5, according to the multiple sets of curing degrees and compression moduli, the moduli of the resin under the different curing degrees are obtained through backstepping by means of the self-consistent field mesomechanics model, and then the time-varying characteristics of the mechanical property of the composite material in the curing process can be obtained. The characteristics that the composite material repairing instrument can safely and controllably terminate the composite material curing process at any time, the mechanical property of the composite material in the thickness direction, the compression test is easy to implement and the like are fully combined, and the problems that composite material mechanical samples are difficult to machine and mechanical properties are difficult to measure under different curing degrees and different temperatures are solved; accurate measurement of the time-varying characteristic of the mechanical property of the composite material is realized.

This invention discloses a method for preparing a coal-based solid waste-based microbial composite remediation material, belonging to the technical field of soil remediation material preparation and high-value utilization of industrial solid waste. The method includes four core steps: low-damage pretreatment of coal-based solid waste, low-concentration alkali-ultrasound synergistic mild pre-activation, in-situ directional acclimatization-biological secondary activation integrated treatment, microenvironment enhancement, and low-temperature binder-free molding. This invention breaks the technical bias of existing technologies that involve "high-strength modification first, then passive loading of microorganisms," transforming the conflict between solid waste activation modification and microbial compatibility acclimatization into a synergistic process, fundamentally resolving the core technical contradiction between solid waste activation efficiency and microbial survival requirements. The material prepared by this invention possesses both excellent pollutant adsorption and passivation capabilities and long-term microbial activity, and can be widely applied in the field of heavy metal contaminated soil remediation, while simultaneously achieving the harmless and high-value utilization of coal-based solid waste.

The invention discloses a core-shell structure gradient layer sustained-release hydroxyapatite-PDRN / PN multiple compound as well as a preparation method and application thereof, and belongs to the technical field of biological materials. The preparation method comprises the following steps: S1, mixing a macromolecular solution with hydroxyapatite microspheres, and adjusting the pH value to be alkaline to obtain a suspension before in-situ mineralization; s2, mixing with calcium salt and phosphate, reacting, and carrying out solid-liquid separation to obtain an initial composite precipitate; s3, optionally, the initial composite precipitate is subjected to n times of coating circulation, and n is an integer ranging from 1 to 6; and S4, dispersing the initial composite precipitate or the final composite precipitate obtained after coating circulation in S3 into a solution containing PDRN or / and PN, so as to obtain a dispersion liquid of the core-shell structure gradient slow-release hydroxyapatite-PDRN / PN multiple compound. According to the method, the long-acting and stable hydroxyapatite-PDRN / PN multiple compound can be prepared, and the problems that in the prior art, a composite repairing material is not uniform in mixing, not matched in degradation behavior, short in biological activity maintaining time, low in cell utilization efficiency and the like are solved.

The application relates to a Fenton-like composite material, in particular to a self-activated Fenton-like composite repair material and a preparation method and application thereof, the composite repair material is CaO2@Fe3O4@BIP-BC, a protein imprinting biochar is used as a matrix, magnetite serving as an activator and calcium peroxide serving as a slow-release oxidant are sequentially loaded on the surface. Compared with the prior art, the application has the advantages that (1) the biochar surface active groups and calcium peroxide improve the high efficiency and long-acting property of the Fenton-like process, (2) the protein imprinting improves the selectivity of the removal of target harmful bacteria and harmful bacteria genes, (3) the biochar simultaneously loads the calcium peroxide and the magnetite, the simultaneous addition of the activator and the oxidant is realized, and the use cost and the operation complexity are reduced. The method solves the problems that the traditional Fenton-like oxidation treatment has poor specific removal effect on harmful bacteria and harmful bacteria genes in the environment, the treatment time is short, the required dosage is high, secondary pollution is serious, and the activator and the oxidant need to be used separately.

The present invention relates to the technical field of intelligent repair structures of composite materials, specifically to an intelligent repair structure of composite materials and its preparation and health self-detection method. The intelligent repair structure is prepared by a resin film melt infusion process using an epoxy resin film, an epoxy resin and carbon black composite film and a carbon fiber cloth in a certain layering order. The epoxy resin and carbon black composite film includes an insulating matrix and an epoxy resin and carbon black composite film sensing element. The epoxy resin and carbon black composite film sensing element is arranged along three different directions at each measuring point and has a strain resistance effect. Due to the strain resistance effect, when the composite repair structure is deformed by an external load or when damage defects such as delamination and debonding occur in the structure, the resistance of the health detection element changes. By using a Wheatstone bridge and calibration experimental data, the strain data of the health detection point can be obtained through the bridge output voltage. By using the linear strain of each measuring point along the three directions, the magnitude and direction of the principal strain of the measuring point can be obtained.

The present application relates to the technical field of remanufacturing, in particular to a beryllium bronze piston part inner wall damage repairing method, and its specific steps are as follows: S1, defect inspection; S2, electrode rod preparation; S3, electric spark coating repair; S4, cold welding machine remelting; S5, heat treatment; S6, inner hole honing; S7, repair verification; The present application adopts the method of electric spark coating repair + cold welding composite repair, which not only solves the problem of electric spark coating repair layer being not dense, but also solves the problem of difficult wire feeding in the cold welding inner hole repair process, and the specially-made electrode rod solves the problem of shaking of the long electrode rod rotating at high speed in the electric spark coating repair process, the metallographic of the repair layer does not have cracks and un-melted defects, the repair layer is metallurgically combined with the matrix, and the hardness of the repair layer reaches more than 90% of the matrix.

The application relates to a Fenton-like oxidation treatment method, in particular to application of a self-activation Fenton-like composite repair material, the composite repair material being CaO2@Fe3O4@BIP-BC, and taking protein imprinting biochar as a matrix, and magnetite and calcium peroxide being sequentially loaded on the surface. Compared with the prior art, the application has the advantages that 1) the biochar surface active groups and calcium peroxide improve the high efficiency and long-acting property of the Fenton-like, 2) the protein imprinting improves the selectivity of the target harmful bacteria and harmful bacteria gene removal, 3) the activation agent and the oxidant are simultaneously added, and the use cost and operation complexity are reduced. The method effectively solves the problems of the traditional Fenton-like oxidation treatment, such as poor specific removal effect on harmful bacteria and harmful bacteria genes, short treatment time, high required dosage, serious secondary pollution and the need of separate use of the activation agent and the oxidant, and realizes high efficiency and long-acting repair of soil and water bodies polluted by harmful bacteria and harmful bacteria genes through the Fenton-like reaction.

The invention relates to the technical field of nuclear engineering equipment, in particular to a composite repair robot applied to a fission reactor special chamber environment. Comprising a crawler trolley; the composite mechanical arm comprises a three-axis arm and a six-axis arm, one end of the three-axis arm is connected with the crawler trolley, and the other end of the three-axis arm is connected with the six-axis arm; the manipulator is fixed at the tail end of the six-axis arm and is used for executing repairing operation in the fission reactor special box chamber; according to the composite type repairing robot for the fission reactor special box chamber, through the unique design and the innovative technical scheme, the safety, efficiency, stability and practicability of repairing operation on a process pipeline in an extreme environment are remarkably improved, and the composite type repairing robot has important application value and social significance.

The invention provides a preparation method of an anti-freezing and anti-melting composite repair material suitable for a high and cold meadow degraded grass felt layer. The method comprises the following steps: preparing a seed protection layer from a bio-based fiber net, dolomite powder, polyvinyl alcohol and cold-resistant plant seeds; a response layer is prepared from nano silicon dioxide, phase change material microcapsules and polylactic resin; bentonite, biochar, zeolite, polyacrylamide and powdery silicon-calcium-potassium-magnesium fertilizer are prepared into a moisture regulation and control layer; humic acid, biochar, a sustained and controlled release compound fertilizer and symbiotic flora of a cold-resistant plant root system are prepared into a nutrient substrate layer; preparing an anchoring layer from modified starch, microcrystalline cellulose and a soil stabilizer; the anchoring layer, the nutrition matrix layer, the moisture regulation and control layer, the response layer and the seed protection layer are sequentially laid between the layers from bottom to top to be compounded, and the anti-freezing and anti-melting composite repair material suitable for the alpine meadow degraded grass felt layer is obtained. The invention further provides application of the composite repairing material, and the composite repairing material is used for the alpine meadow degraded grass felt layer to reduce freezing and thawing.

The invention belongs to the technical field of electric power facility maintenance, and particularly relates to a cement tower pole electrified composite repair method which comprises the following steps: S1, removing corrosion products on the surface of a tower pole to expose a fresh base surface; s2, mixing 42.5 R Portland cement, basalt macadam and water-borne epoxy resin emulsion to form a reinforcing agent; s3, the fresh base surface is filled with the reinforcing agent twice, and manual tamping is conducted after filling of the reinforcing agent is completed every time; s4, after the reinforcing agent is dried, the surface of the reinforcing agent is coated with a waterborne epoxy interface agent; and S5, after the waterborne epoxy interface agent is dried, waterborne epoxy resin is brushed on the surface of the waterborne epoxy interface agent for three times, and after the waterborne epoxy resin is brushed each time, glass wool cloth is wound on the surface of the filling layer. The outermost layer is coated with the water-borne epoxy resin, the hydrophobicity of the repaired surface can be greatly improved, water cannot permeate into the repaired surface, and then the environment erosion resistance is improved.

The application relates to a composite material repairing assembly and a composite material repairing method, wherein the composite material repairing assembly comprises: a pretreatment layer, which can be laid on a wind power blade and covers a to-be-repaired area; a pouring auxiliary material layer, which is arranged on one side of the pretreatment layer in a thickness direction of the composite material repairing assembly; a first vacuum layer, which is arranged on a side of the pouring auxiliary material layer away from the pretreatment layer, and covers the pouring auxiliary material layer; and a second vacuum layer, which is arranged on a side of the first vacuum layer away from the pretreatment layer, and has an area greater than that of the first vacuum layer. The composite material repairing assembly can improve repairing efficiency and convenience.

The invention belongs to the technical field of aero-engine repairing, and discloses an aero-engine blade repairing method which comprises the steps that a powder material used for repairing an aero-engine blade is deposited on a to-be-repaired part of a to-be-repaired blade through a laser-assisted cold spraying method, and a laser-assisted cold spraying deposition repairing layer is formed on the surface of the to-be-repaired part. And the laser-assisted cold spraying deposition repairing layer is machined to the original size precision and surface roughness of the blade to be repaired, then laser shock is adopted for enhancing treatment on the laser-assisted cold spraying deposition repairing layer, and repairing is completed. The powder material for repairing the aero-engine blade is micron titanium alloy powder. According to the invention, a composite repair process combining laser-assisted cold spraying and laser shock peening is creatively adopted, so that high-quality additive repair and fatigue performance enhancement of a damaged area are realized, and the safety and reliability of the blade in the subsequent service process are guaranteed.

Methods of providing an inspection detectable repair to a component may include providing a component to be repaired having a substrate with a surface. The methods may include identifying a compromised region of a compromised portion of the substrate of the component, with the compromised region having at least one void, and providing material to form a filler material to be applied to the surface of the substrate to be repaired. The methods may include applying particles of filler material as a cold spray deposition utilizing a cold spray deposition apparatus, with particles of filler material forming a deposit of cold sprayed particles on the surface of the substrate adjacent to the at least one void. The methods may include wrapping the substrate of the component with at least one layer of wrap material to cover at least a portion of the deposit of filler material on the substrate.