55 results about "Natural aging" patented technology

The invention discloses a submarine cable insulating material comprehensive aging evaluation method and system based on a time scaling equivalent axis, and relates to the technical field of submarine cable insulating material aging evaluation. The method aims at solving the problems that equivalent alignment of acceleration and natural aging data cannot be achieved, multi-index evaluation is contradictory, and the evaluation period is long in an existing method. The method comprises the following steps: acquiring a plurality of preset performance parameters of a submarine cable insulation material after an electric-thermal-force multi-physical field accelerated aging test, synthesizing a comprehensive aging index after homodromous mapping and robust standardization processing, establishing equivalent mapping of accelerated and natural service time through a linear scaling coefficient, and calculating the aging index of the submarine cable insulation material according to the equivalent mapping. And a service life evaluation result or reliability warning information is output after consistency checking. According to the technical scheme, the aging state and the service life of the submarine cable insulating material can be accurately and efficiently evaluated, and support is provided for material screening, service life evaluation and safety decision making of submarine cable engineering.

The invention belongs to the technical field of surface modification, and particularly relates to a super-hydrophobic insulating coating with a surface microstructure and a preparation method and application of the super-hydrophobic insulating coating. The defects of poor environmental stability, low regulation and control precision, insulation performance attenuation and the like in the prior art are overcome, the static contact angle of the disclosed super-hydrophobic insulation coating is larger than or equal to 150 degrees, the rolling angle is smaller than or equal to 5 degrees, meanwhile, the insulation strength is larger than or equal to 90% of that of an original substrate (the breakdown field strength is larger than or equal to 20 kV / mm), and collaborative optimization of the super-hydrophobic performance and the insulation performance is achieved; moreover, after the coating is naturally aged outdoors for 3 years, the contact angle change rate is smaller than or equal to 10%, the insulation strength attenuation rate is smaller than or equal to 8%, and the long-term environmental stability of the super-hydrophobic insulating coating is effectively improved. A precise regulation and control mechanism is also established based on a molecular dynamics simulation-based low-droplet adhesion microstructure insulation surface design method, so that the droplet contact time is reduced by more than 60% compared with a flat surface, the instantaneous leakage current is reduced by 40%-60%, and the method not only adapts to a polluted environment with the temperature range of-40 DEG C to 180 DEG C and the salt mist concentration of less than or equal to 0.5 mg / m, but also meets the preparation requirements of power equipment with complex shapes.

This application belongs to the field of virtual art restoration technology, specifically providing a deep learning-based virtual art restoration system. The system primarily analyzes historical images and environmental data of the artifact and restoration materials to train an aging prediction model and simulate long-term appearance changes. By quantitatively comparing the differences and stability of their aging trajectories, it calculates the long-term compatibility score for each restoration material and automatically selects the optimal material to generate the final virtual restoration image. This application effectively solves the problem in existing technologies where it is difficult to predict significant visual differences that may appear between restoration materials and the artifact itself after long-term natural aging, ultimately leading to insufficient durability of the restoration results. It achieves scientific prediction and optimized selection of the long-term visual compatibility of restoration schemes, significantly improving the reliability and stability of restoration results and reducing the risk of restoration failure due to material aging incompatibility.

The invention provides an automobile coating anti-aging performance evaluation method based on a natural aging test, and the method comprises the steps: S101, setting an automobile coating anti-aging performance evaluation index, determining a performance evaluation index weight, and determining a score assignment rule of the evaluation index according to the index weight; s102, the evaluation indexes are checked, measured and tested before the aging test, and the initial state before the test is confirmed; s103, carrying out a natural aging test on the automobile coating; s104, checking, measuring and testing the tested automobile coating, and confirming the aging state after the test; s105, calculating an evaluation index aging value according to a comparison result of the initial state and the aging state; s106, combining inspection, measurement and test results with each evaluation index aging value, and calculating a comprehensive evaluation score; and S107, performing star-level evaluation on the automobile coating, and constructing a coating performance prediction model. The anti-aging performance evaluation scale is provided for the automobile industry, and a direction is pointed out for automobile coating product improvement, quality improvement, material selection, research and development and design.

This invention discloses a method for assessing the long-term heavy metal release risk of biochar based on chemical oxidation simulation. The method includes: first, naturally culturing homologous biochar samples in soil to obtain a baseline value W0 for the target heavy metal release ratio; simultaneously, conducting a standardized accelerated aging experiment with an oxidant solution; and determining the number of aging cycles N required to reach W0 by comparison, thereby establishing a quantitative conversion relationship between "number of aging cycles" and "natural aging time". Then, the same accelerated aging experiment is performed on the biochar to be tested, and the number of experimental cycles is converted into an equivalent natural aging time using the quantitative relationship. A long-term release kinetic prediction model is then fitted and constructed, ultimately achieving rapid and quantitative prediction of the cumulative heavy metal release ratio after a target number of years. This invention provides an efficient and reliable tool for assessing the long-term chemical oxidation stability of biochar.

The invention relates to the technical field of machining, in particular to a machining method and clamp for reducing deformation of an oil chamber cover plate, after casting of the oil chamber cover plate is completed, destressing treatment is conducted, part of allowance is roughly machined, and natural aging or artificial aging is conducted; semi-finishing the end face, the outer circle and the inner hole of the oil chamber cover plate, eliminating the deformed part, and marking the position relationship among the holes; according to the method, most of holes of the oil chamber cover plate are machined based on drawing requirements, a clamp is used for clamping and finish machining of the end face of the oil chamber cover plate based on the positions of the holes, and finally, the remaining unmachined holes are finish machined, according to the method, part internal stress can be released in advance by removing stress and reducing part size or form and location tolerance out-of-tolerance caused by stress deformation, and most allowance is removed through rough machining; the special clamp is used for clamping, part deformation caused by three-jaw clamping is avoided, deformation of the part in the machining process is reduced, and meanwhile the perpendicularity and parallelism of the end face of the part and the form and location tolerance requirements of jumping of an inner hole and the like are met.

The application provides an artificial aging method of a natural aging state 6xxx Al-based material, wherein the artificial aging method of the natural aging state 6xxx Al-based material comprises the following steps: heating the natural aging state 6xxx Al-based material after solid solution and quenching treatment to 170-200 DEG C at a heating rate of not higher than 2 DEG C / min; performing high-temperature artificial aging treatment on the natural aging state 6xxx Al-based material after the heating treatment at a temperature of 170-200 DEG C to obtain an under-aged state 6xxx Al-based material; cooling the under-aged state 6xxx Al-based material to 100-130 DEG C; and performing low-temperature artificial aging treatment on the under-aged state 6xxx Al-based material after the cooling treatment at a temperature of 100-130 DEG C to obtain a 6xxx Al-based material. The application controls the high-temperature artificial aging and the low-temperature artificial aging, inhibits the parking effect, promotes the transition of atomic clusters to precipitated phases, avoids the formation of coarse precipitated phases, and improves the strengthening capacity of the artificial aging of the natural aging state 6xxx Al-based material.

This invention discloses a precise testing method for the tensile properties of naturally aged SWRH82B steel wire rod, belonging to the field of metallic material performance testing technology. The method includes: sample preparation: selecting 12.5mm SWRH82B steel wire rods from the same batch, removing defects, and processing to uniform dimensions, then naturally aging them at 5℃ for at least 3 weeks; tensile parameter setting: adopting a two-stage control mode, using a strain control rate of 0.02-0.2%S, displacement control for tensile strength Rm testing, and simultaneous recording of reduction of area Z%; standardized testing: performing tensile tests on a microcomputer-controlled electro-hydraulic servo universal testing machine according to preset parameters; result correction: data correction based on the steel wire rod's microstructure, nitrogen and hydrogen content, and surface quality. This invention can accurately reflect the true tensile properties of SWRH82B steel wire rods, is suitable for factory quality control and engineering acceptance scenarios, and is suitable for standardized promotion and application.

This invention discloses a composite deformation heat treatment process for improving the strength and corrosion resistance of aluminum-lithium alloys, belonging to the field of aluminum-lithium alloy preparation technology. The composite deformation heat treatment process for improving the strength and corrosion resistance of aluminum-lithium alloys of this invention includes the following steps: (1) performing solution treatment, water quenching, and natural aging treatment on the aluminum-lithium alloy in sequence; (2) performing pre-deformation treatment on the aluminum-lithium alloy treated in step (1); (3) performing non-isothermal aging treatment on the aluminum-lithium alloy treated in step (3); wherein, the pre-deformation amount of the pre-deformation treatment is 4~10%; the non-isothermal aging treatment is to first raise the temperature from 40℃ to 140~200℃ and then lower the temperature to 100~160℃; the aluminum-lithium alloy treated by the composite deformation heat treatment process of this invention has both good mechanical properties and corrosion resistance.

The application provides a natural aging strengthened anodizable die-casting aluminum alloy material, which comprises the following components in percentage by mass: Si is less than or equal to 0.15; Fe is less than or equal to 0.15; Cu is less than or equal to 0.05%; Mn is 1.85-2.5; Mg is 0.4-1.0; Zn is 2.0-4.0; Ti is less than or equal to 0.1; Ni is less than or equal to 0.1; Pb is less than or equal to 0.1; Sn is less than or equal to 0.01; and Cd is less than or equal to 0.01. The natural aging strengthened anodizable die-casting aluminum alloy material provided by the application not only can realize very beautiful color anodization effect, but also has relatively high strength. Compared with the anodizable die-casting aluminum alloy material in the prior art, the strength of the alloy material is further significantly improved after two months of natural aging, and the alloy material has very good natural aging strengthening characteristics. Moreover, the material can pass the heat resistance test of 500 DEG C*3 hours without discoloration and deformation, and has good heat resistance.

A kind of Al-Zn-Mg high-strength aluminum alloy laser-MIG composite welding method based on adjustable swing frequency, the method comprises the following steps: welding preparation, the surface of Al-Zn-Mg high-strength aluminum alloy to be welded workpiece needs to be polished, cleaned and dried to remove oxide film, dirt and other impurities;Welding process parameter setting and execution, the swing frequency of laser beam is adjusted during welding, and the synergistic effect of MIG arc is used to realize the precise control of molten pool flow behavior;Welding post-processing, artificial aging or natural aging method is used for post-welding treatment to eliminate welding residual stress and improve joint mechanical properties.The invention optimizes the swing frequency parameter, effectively suppresses the defects such as hot crack and porosity that easily occur during welding of Al-Zn-Mg high-strength aluminum alloy, significantly improves the strength and corrosion resistance of the welded joint, and is suitable for the welding requirements of high-performance aluminum alloy components in the fields of aerospace, rail transportation, etc.

The invention belongs to the new technical field of white spirit brewing, and particularly relates to a method for accelerating aging of white spirit through a hydrothermal synergistic electro-catalysis process, which specifically comprises the following steps: introducing newly-brewed white spirit into an aging container, carrying out electro-catalysis treatment, selecting titanium-plated platinum as an electrode material, and carrying out hydrothermal reaction synergistic treatment at the same time; after electro-catalysis treatment, constant-temperature water bath treatment is conducted, the operation is repeated for 3-5 times, and the treatment interval is 30-50 min. The content of acetal in the white spirit treated by the method is increased, the content of ester substances such as ethyl hexanoate and ethyl acetate is obviously increased, and irritant components such as low-grade saturated fatty aldehyde and fusel oil are reduced. The treated white spirit has the aroma of aged white spirit, tastes soft and soft, contains typical aromatic odor of the white spirit, has prominent flavor and is mellow and pleasant during drinking, and is equivalent to natural ageing for 1-3 years, so that the ageing period of the white spirit is greatly shortened, and the ageing cost of the white spirit is reduced.

The application discloses a hot-rolled wire rod 30Si2Mn for prestressed steel rods and a preparation method thereof. The hot-rolled wire rod comprises the following components in percentage by weight: C: 0.28%-0.33%, Si: 1.55%-1.70%, Mn: 0.65%-0.80%, P: <=0.020%, S: <=0.020%, Ni: <=0.20%, Cr: <=0.20%, Cu: <=0.20%, H <=0.0003%, and the balance of Fe and inevitable impurity elements. By designing the optimal component system, optimizing the controlled rolling and controlled cooling process, improving the mechanical properties of the wire rod, prolonging the wire rod online slow cooling time by taking process measures, releasing hydrogen and internal stress, controlling the hydrogen content below 3ppm, and achieving the section shrinkage rate above 50% after natural aging, hydrogen-induced delayed fracture of the prestressed steel rod is effectively avoided, and the safety of the construction engineering is improved.

The invention provides an equivalent simulation method and system for artificial accelerated aging of a composite insulator, and relates to the technical field of insulator equivalence, and the method comprises the steps: obtaining naturally aged insulators with different operation years; acquiring accelerated aging insulators with different aging degrees; performing performance test on the accelerated aging insulator and the natural aging insulator to obtain a plurality of key aging characteristic indexes; calculating a health state index based on the key aging characteristic index; constructing a health state index prediction model based on the health state index; and performing multi-objective optimization on the equivalent accelerated aging environment parameters and acceleration time of the actual natural aging composite insulator based on the health state index prediction model to obtain the equivalent optimal accelerated aging environment parameters and the optimal acceleration time of the actual natural aging composite insulator. According to the invention, the problem of low reality correlation and data reliability of test results caused by low accuracy and consistency of equivalent simulation results when the aging degree is evaluated in the prior art is solved.

The application relates to a high-plasticity super-high-strength cord steel wire rod and a production process thereof. The chemical components of the cord steel wire rod include the following in percentage by mass: C: 0.90%-0.94%, Si: 0.17%-0.30%, Mn: 0.30%-0.48%, Cr: 0.17%-0.50%, P: <=0.012%, S: <=0.008%, Ni: <=0.05%, Cu: <=0.05%, Al: <=0.0030%, Ti: <=0.0020%, O: <=0.0020%, and N: <=0.0045%. Based on the medium rectangular billet heavy pressing, one-fire straight rolling and grading controlled cooling process, the application can effectively improve the segregation of the casting billet, avoid the production cost increase caused by the second-fire material forming, inhibit the formation of abnormal net-shaped carbide and martensite structure, shorten the natural aging period, has excellent deep drawing processing performance, and can be used for the production of 90-grade and 92-grade super-high-strength cord steel wire rods.

The invention relates to the technical field of mirror frame processing, and discloses a mirror frame coating processing method with waterproof and sunscreen capabilities, which comprises the following steps: S1, cleaning and plasma treatment are carried out on a mirror frame base material; s2, coating a silicon dioxide bottom film by adopting a magnetron sputtering method; s3, coating a waterproof and sunscreen composite film formed by mixing nano titanium dioxide and an organic silicon waterproof agent by adopting a spraying method; s4, coating a silicon dioxide-aluminum oxide composite protective layer by adopting a sol-gel method; and S5, carrying out natural aging treatment on the coated mirror frame. By adopting the plasma pretreatment and multi-layer coating film structure design, the bonding force of the coating film and the mirror frame base material is remarkably improved, the problem of coating film stripping is effectively solved, and the mirror frame has excellent waterproof and sunscreen performance through the synergistic effect of the nano titanium dioxide and the organic silicon waterproof agent.

The invention relates to the technical field of agriculture, in particular to a method for fusing anaerobic fermentation compost, which comprises the following steps: mixing organic waste raw materials, and adding sodium citrate and magnesium sulfate for treatment; feeding the treated raw materials into an anaerobic reactor, adding an iron-based core-shell structure material, controlling the pH value of the system, and carrying out anaerobic fermentation to obtain digestion residues; bicarbonate and sodium citrate are added into the digestion residues to be mixed; and entering an aerobic composting stage, controlling the moisture content of the pile body under an oxygen supply condition, heating the pile body, maintaining the pile body to enter a decomposition stage, and carrying out natural aging to produce a decomposed organic fertilizer. In the invention, by virtue of the porous structure and surface characteristics of the iron-based core-shell structure material, not only is the stability of the fermentation process ensured, but also the microbial electron transfer process is optimized, and the methane production efficiency is improved; the compound microbial agent effectively increases the number of effective microbial communities, improves the temperature and ventilation conditions in the composting process, and ensures uniform decomposition of the organic wastes.

The present application belongs to the technical field of aluminum alloy heat treatment, and discloses a composite deformation heat treatment method for inhibiting natural aging of aluminum alloy for automobiles and improving artificial aging response. The method comprises the following steps: 1) heat preservation, rapid cooling, cold rolling, and completion of pre-deformation of the rolled deformed aluminum alloy plate; 2) heat preservation and completion of intermediate pre-aging of the alloy plate after the pre-deformation; 3) cold rolling and completion of post-deformation of the alloy plate after the intermediate pre-aging; and 4) placing the alloy plate after the post-deformation at room temperature, heat preservation, and completion of final aging. The method of the present application inhibits the formation of atom clusters at room temperature in the natural aging process, promotes the precipitation of strengthening phase in the artificial aging process, fully plays the dispersion strengthening effect, realizes significant artificial aging response, and maintains a high response amount after the natural aging, especially the tensile strength is significantly improved, and excellent plasticity is exhibited. The present application is easy to mass produce.

This invention discloses a two-stage steaming and purification process for light-aroma baijiu that incorporates Ru porcelain mineral elements. Belonging to the field of baijiu brewing technology, it aims to solve the problems of a single flavor structure and long aging period in traditional light-aroma baijiu processes. This innovative process uses activated Ru porcelain mineral elements as fermentation aids and aging catalysts, introduced in both fermentation stages. This works synergistically with the traditional two-stage steaming and purification technique to optimize the microbial metabolic environment from the source, promoting the coordinated formation of the main flavor esters. During the aging stage, the elements continuously dissolve, catalyzing molecular association and maturation reactions, significantly shortening the natural aging time. This technology significantly enhances the body's mellowness, sweetness, and cleanliness without altering the typical style of light-aroma baijiu, and endows it with a unique mineral-rich, aged flavor, achieving a simultaneous leap in quality and efficiency.

This invention discloses a method and system for assessing equipment health and predicting remaining lifespan based on a dual degradation mechanism. The method includes: initializing the equipment's health and vulnerability; updating the health based on a preset natural wear rate within each discrete time step; if a fault event occurs within the current time step, calculating the damage amount based on the severity, duration, and current vulnerability of the fault event, and updating the health and vulnerability accordingly; if the fault is resolved, calculating the recovery amount of the health based on a preset recovery factor, and updating the health accordingly; updating the vulnerability based on a preset forgetting factor; and calculating the remaining lifespan of the equipment based on the updated health and a preset failure threshold. Compared with existing technologies, this invention achieves real-time accurate assessment of equipment health status and precise prediction of remaining lifespan through a dual degradation mechanism of natural aging and fault impact, and its damage memory effect.

The present application belongs to the technical field of recycled aluminum alloy, and discloses a composite treatment method for modifying Fe-rich phase of 6016 recycled aluminum alloy and enhancing paint-baking hardening response. The composite treatment method comprises the following steps: S1) performing Sr, Cr and Sn multi-element micro-alloying treatment on remelted 6016 aluminum alloy; then preparing the micro-alloyed melt into an ingot; S2) performing heat preservation homogenization treatment, hot rolling, cold rolling, solid solution treatment, natural aging, paint baking treatment on the ingot to obtain the recycled aluminum alloy. The method realizes the conversion of β-Fe phase to α-Fe phase in the 6016 recycled aluminum alloy, effectively modifies the coarse long needle-shaped Fe-rich phase into fine Chinese character-shaped Fe-rich phase, effectively suppresses the negative influence of natural aging, and enhances the paint-baking hardening increment. The recycled aluminum alloy after multi-element micro-alloying treatment has excellent mechanical properties, significantly reduces the harm of impurity element Fe to the 6016 recycled aluminum alloy, and realizes high-quality utilization of the recycled aluminum alloy.

The utility model discloses an O-shaped ring high-temperature aging test device for a steering gear, which comprises a box body, a box door arranged on the box body, a temperature adjusting controller and a time adjusting controller arranged on the box body, a fixed seat arranged inside the box body, a pair of vertical columns arranged longitudinally arranged on the fixed seat, a pulling machine arranged on the fixed seat, a lower bracket arranged on the pulling machine, and an upper bracket arranged on the lower bracket, the lower support is provided with a cylindrical lower fixing column head, the head of the lower fixing column head is provided with an annular lower fixing ring groove, a transverse rod is transversely arranged between the stand columns, the transverse rod is provided with a force sensor, the lower portion of the force sensor is provided with an upper shaping shaft, the lower portion of the upper shaping shaft is provided with an upper support, and the upper support is provided with a cylindrical upper fixing column head. An annular upper fixing ring groove is formed in the head of the upper fixing column head. According to the high-temperature aging test device for the O-shaped ring for the steering gear, a tensile test and a high-temperature aging test are integrated, multiple purposes are achieved, the effect of natural aging of rubber can be achieved in a short time, and the test efficiency of the O-shaped ring is effectively improved.

The invention discloses a production method for avoiding flaw detection and crystal penetration of a 2XXX aluminum alloy T351-state plate, and belongs to the technical field of aluminum alloy processing. The method comprises the following steps: preparing a cast ingot after regulating components, carrying out three-stage homogenization treatment on the cast ingot, carrying out pretreatment before rolling, carrying out cogging energy storage, carrying out middle'large reduction and small reduction 'alternate mode and carrying out segmented rolling of finish rolling gradient pressure increasing to obtain a plate, and carrying out 15-25% cold rolling; and carrying out solid solution and high-pressure water mist quenching at 490-540 DEG C, stretching at the stretching amount of less than or equal to 2.2% and the speed of less than or equal to 2.5 mm / s within 4 hours after solid solution, and then carrying out natural aging for more than 96 hours. According to the method, complex equipment transformation is not needed, grain refinement and structure homogenization are achieved, the flaw detection qualification rate is larger than or equal to 99%, the mechanical performance is that the tensile strength is larger than or equal to 480 MPa, the yield strength is larger than or equal to 420 MPa, the ductility is larger than or equal to 12%, the process operability is high, and the method is suitable for industrial production in the high-end fields such as aerospace.

The invention relates to the technical field of liquor aging, in particular to a novel aging accelerating method for accelerating liquor aging reaction by combining the synergistic effect of a mesoporous molecular sieve and a microwave field. The method comprises the following steps: introducing white spirit liquid into a mesoporous molecular sieve packed bed functionally modified by a sulfonic acid group (-SOH), carrying out cooperative treatment under a proper microwave irradiation condition, and realizing efficient adsorption and catalytic conversion of macromolecular flavor substances in a spirit body by utilizing a large-aperture structure (the aperture is 5-30 nm) of a mesoporous material. Meanwhile, molecular movement and reaction activity in a system are enhanced by virtue of enhanced polar molecule energy of a microwave field, so that the natural aging rate of the white spirit is remarkably increased. According to the aging accelerating method, the generation efficiency of ester, acid and aromatic flavor substances in the liquor body is improved, the volatilization loss of low-boiling-point flavor components in the traditional aging process is effectively reduced, and the overall flavor quality of the liquor is improved.

The invention discloses an optimization design method and design equipment for a road corrugated beam guardrail, and relates to the technical field of road guardrail design. In the method, the design equipment takes the ratio of the reference deformation quantity to the deformation quantity of each part of the guardrail as the equivalent performance residual rate of each part of the guardrail under the service life of anchor point data, and the ratio relationship reflects the performance retention degree of the guardrail parts relative to a brand new state. The construction of the equivalent aging curve converts discrete performance data into a continuous mathematical function, so that the design equipment can predict the performance of each part of the guardrail after natural aging for any service time according to the equivalent aging curve. The design equipment constructs the guardrail optimization model of the target area based on the equivalent aging curve and the preset reference guardrail finite element model, and then obtains the guardrail structure optimization design scheme according to the preset optimization target, thereby reducing the influence of the natural aging of the guardrail on the guardrail optimization design scheme. And the accuracy of the optimized design scheme of the road corrugated beam guardrail is further improved.

The application discloses a kind of based on time scaling equivalent shaft's submarine cable insulating material comprehensive aging evaluation method and system, and relates to submarine cable insulating material aging evaluation technical field.The existing method cannot realize the problem of acceleration and natural aging data equivalent alignment, multi-index evaluation contradiction, long evaluation period is solved.This application includes the following steps: obtaining multiple preset performance parameters of submarine cable insulating material after electric-thermal-power multi-physical field accelerated aging test, synthesizing comprehensive aging index after homogenization mapping and robust standardization processing, establishing the equivalent mapping of acceleration and natural service time by linear scaling coefficient, outputting life evaluation result or reliability warning information after consistency test.This technical scheme can accurately and efficiently evaluate the aging state and service life of submarine cable insulating material, and provide support for material selection, life evaluation and safety decision of submarine cable engineering.

The invention discloses a concrete repairing and protecting system for an anti-collision wall of an expressway. The concrete repairing and protecting system comprises a permeation reinforcing layer, a high-toughness temperature-change-resistant mortar waterproof reinforcing layer and a weather-proof anti-corrosion surface layer, wherein the permeation reinforcing layer is made of high-permeability epoxy paint, the high-toughness temperature-change-resistant mortar waterproof reinforcing layer is made of temperature-change-resistant elastic epoxy mortar containing flexible epoxy resin and inorganic functional aggregate which are mutually penetrated, the thickness of the high-toughness temperature-change-resistant mortar waterproof reinforcing layer is 5-10 mm, the weather-proof anti-corrosion surface layer is made of weather-proof polyurethane finish paint, and the thickness of a coating film is 0.2-0.4 mm. The concrete repairing and protecting system has excellent foundation reinforcing, waterproof and weather-proof effects, and the problems that serious freeze thawing or natural aging damage still occurs 1-2 years after repairing of a traditional repairing system, and a protecting layer seriously falls off and cracks are solved.

The utility model discloses a mixture aging device for sludge ceramsite production, which comprises a handle, the inner surface of the handle is fixedly connected with a mixture placing tray, the lower surface of the mixture placing tray is in rolling connection with a roller, the inner surface of the roller is in rotating connection with a roller shaft lever, and the roller shaft lever is in rotating connection with the lower surface of the mixture placing tray. A roller supporting column penetrates through the side surface of the roller shaft rod, the roller supporting column and the roller shaft rod are tightly connected, a ceramsite supporting platform is fixedly connected to the lower surface of the roller supporting column, a steam through groove is formed in the ceramsite supporting platform, and a ceramsite supporting column is fixedly connected to the side surface of the ceramsite supporting platform; the side surface of the ceramsite supporting column is fixedly connected with an aging chamber wall body, atomized gas through holes are formed in the aging chamber wall body, and through cooperative use of the components, the effects of natural aging, uniform distribution of moisture and improvement of product plasticity of the mixture aging device for sludge ceramsite production are achieved.

The application discloses a kind of multi-sensing threshold self-learning methods of plate type berth equipment, and the application relates to the technical field of mechanical equipment state monitoring and fault diagnosis, comprising the following steps: S1: collecting the multi-source heterogeneous data of plate type berth equipment at multiple preset monitoring points, the multi-source heterogeneous data at least includes electrical parameter data, mechanical vibration data, position angle data and environmental compensation data.The multi-sensing threshold self-learning method of the plate type berth equipment, realizes the fine identification and dynamic threshold generation of equipment operating state.Can effectively distinguish the parameter drift caused by environmental temperature change, lubrication state fluctuation or mechanical natural aging and real fault characteristics, avoid fixed threshold after seasonal change or equipment wear frequently trigger false alarm, ensure that sudden mechanical damage or electrical anomaly is captured in time, improve the accuracy of fault detection and the continuity of equipment operation.

An aluminum alloy differential thick plate for automobile and a preparation method thereof belong to the field of rolling technology. The aluminum alloy differential thick plate comprises the following components: Mg: 0.65-0.70%, Si: 0.70-0.85%, Mn: 0.08-0.13%, Cu: 0.09-0.12%, Ti: <0.02%, Zn: <0.01%, Cr: 0.01-0.03%, Fe: 0.15-0.21%, and the balance of Al. The preparation method comprises the following steps: using T4P state aluminum alloy equal-thickness plate as raw material, performing solid solution treatment after variable-thickness rolling, and then performing pre-aging treatment and natural aging treatment; performing pre-tensile strain treatment on the aluminum alloy differential thick plate after natural aging; and finally, heating and holding to simulate the paint baking hardening process. The differential thick plate prepared by the method has small mechanical property difference between the thin area and the thick area, high paint baking hardening capacity, and excellent comprehensive mechanical property, and can be used for manufacturing automobile lightweight parts. The technical route of obtaining the aluminum alloy differential thick plate by using variable-thickness rolling and heat treatment method has the advantages of high production efficiency, low production cost, and the like, and is easy to realize mass industrial production.