9 results about "Long term durability" patented technology

The present application relates to the technical field of plate performance testing, and particularly relates to a kind of plate edge durability test method;It comprises the following steps: cutting plate sample into standard size test piece;Using thermal mechanical analyzer respectively test the linear expansion coefficient of test piece edge material and base material;The test piece after processing is placed in environmental test chamber and is subjected to cyclic test;Test piece is fixed on load testing device, and constant load is applied along the direction perpendicular to the edge interface of plate plane;Using flatness tester to measure the overall warping of test piece, compare with the warping data before testing, calculate the warping change, evaluate the actual effect of plate balanced laminating process on preventing warping after edge sealing;Using weighted scoring method to calculate the comprehensive score of edge durability;Realize that the long-term durability of plate edge sealing under complex working conditions can be comprehensively and accurately evaluated, and provide scientific and comprehensive technical support for edge sealing process optimization, material selection and structure design.

The present application provides a power storage element packaging material, a power storage element container, and a power storage element, which have excellent formability and do not cause appearance defects such as interlayer lifting, even when the adhesive is a film, and in which the interlayer adhesive strength is not reduced after a high-temperature high-humidity / long-term durability test. The problem can be solved by a power storage element packaging material including a structure in which, from the outside, an outer layer-side resin film layer (1), an outer layer-side adhesive layer (2), a metal foil layer (3), an inner layer-side adhesive layer (4), and a heat-seal layer (5) are sequentially stacked, the outer layer-side adhesive layer (2) is formed of a polyurethane adhesive containing a main agent (A) and a hardening agent, the main agent (A) includes a polyurethane resin (a) having a hydroxyl group, and the hardening agent includes a polyisocyanate component (B).

This invention proposes a device for simulating the erosion and degradation of the inner side of the lining of a shield tunnel under load, relating to the field of tunnel engineering testing. It includes: a scaled-down lining unit, a water pressure injection unit, a gas injection unit, and a data acquisition unit. The water pressure injection unit comprises an annular outer casing and a sealing cover for sealing the annular outer casing. The scaled-down lining unit is located inside the annular outer casing, and the inner wall of the scaled-down lining unit and the sealing cover form the gas injection unit. This invention simulates the environmental erosion experienced by the lining of a shield tunnel during actual application. By simultaneously applying external high water pressure, internal pressurization, and an corrosive gas environment, and by monitoring the mechanical response, permeability characteristics, and material degradation process of the test specimen in real time, it provides a key testing method for evaluating the long-term durability of shield tunnels.

This invention relates to the field of object property analysis technology, and more particularly to a method for predicting and analyzing the long-term durability of ultra-high performance concrete. The method includes the following steps: performing durability characterization analysis of the concrete's materials and structure based on ultra-high performance concrete design parameters, generating concrete material-structure durability characterization data; establishing a mapping relationship between the state evolution trend of concrete structural properties and durability assessment based on target area environmental data, concrete test data, and concrete material-structure durability characterization data, generating a concrete durability state evolution trend assessment model; and using the concrete durability state evolution trend assessment model to predict and assess the durability of ultra-high performance concrete based on the concrete test data, generating ultra-high performance concrete durability prediction and assessment data. This invention achieves accurate prediction and analysis of the long-term durability of ultra-high performance concrete by considering its materials, structure, and environment.

The invention provides a multi-objective collaborative design method and system for a microwave self-healing asphalt mixture, and belongs to the technical field of asphalt mixture design. The method comprises the following steps: determining reference material composition based on target pavement performance; a multi-objective optimization problem containing a decision variable set, an objective function set and a constraint condition set is established, the decision variable set comprises the steel slag mixing amount and the grading type, and the objective function set covers the microwave heating performance, the self-healing efficiency and the road durability after thermo-oxidative aging, salt freeze-thaw and dry-wet cycle; an improved adaptive particle swarm optimization algorithm is adopted to solve and obtain a Pareto optimal solution set; and finally selecting an optimal material composition from the solution set based on engineering requirements. Through a multi-target collaborative optimization mechanism, the technical problem that the self-healing function and the long-term durability are difficult to consider at the same time is solved, and a customized material design scheme with efficient healing capacity and excellent durability is provided for different engineering scenes.

Abrasion Tester Device Enhanced by Artificial Intelligence and Image Processing Abrasion testing devices are used to measure the resistance of material surfaces against mechanical abrasive effects such as friction, rubbing, and erosion. These devices are widely employed across various industries to determine the wear performance and long-term durability of materials. The results of abrasion tests may vary depending on the expertise of the operator and the environmental conditions under which the test is conducted. The invention enhances the accuracy and objectivity of abrasion tests by integrating artificial intelligence and image processing technologies into the abrasion testing device. In this way, the measurements become more precise and reliable. Furthermore, by reducing the need for operator intervention, human-induced errors are minimized, and the results can be consistently obtained under the same standards each time.

The invention discloses an automobile sealing strip microwave continuous vulcanization and seamless joint angle forming method, and relates to the technical field of automobile part manufacturing, a semiconductor quantum dot microwave sensitizer subjected to surface functionalization treatment, a microencapsulation activator system and an EPDM rubber base material are mixed, and a main body intelligent composite material is prepared; preparing a special digital wire material containing a depolymerizing agent and the same-frequency out-phase quantum dots for the joint angle; and after precise extrusion and shaping are conducted on the main body intelligent composite material, the main body intelligent composite material is fed into a dynamic microwave vulcanization cavity, and continuous and uniform vulcanization of the sealing strip main body is achieved through selective microwave vulcanization catalyzed by quantum dots. Molecular-level seamless fusion of the connecting corner and the main body is achieved, physical joints of a traditional process are thoroughly eliminated, and the sealing performance and long-term durability of the sealing strip are remarkably improved; quantum dot catalysis selective area microwave vulcanization and multi-energy field co-vulcanization are cooperated, it is guaranteed that vulcanization of the sealing strip body and the corner connecting area is uniform, and the performance consistency is greatly improved.

The invention relates to the technical field of concrete performance testing, in particular to an intelligent testing device and method for concrete filled steel tubes in a plateau low-pressure freeze-thaw corrosion environment. Functional modules such as the concrete feeding device, the intelligent air pressure adjusting system, the intelligent temperature control system, the intelligent spraying and curing system and the intelligent corrosion device are integrated with the preparation box, and the preparation box is fixedly connected with the vibrating table, so that the internal space of the preparation box can be used for preparing concrete under single or composite environmental conditions such as specific air pressure, temperature and humidity; the whole process of concrete pouring, vibrating, early-age maintenance and long-term durability test under the action of different freeze-thaw soil layer depths and corresponding soil layer corrosion is simulated, so that the synchronization of environment simulation and the concrete material forming process is realized; therefore, the combined action environment of low pressure, freeze thawing, corrosion and the like in the plateau area where the concrete-filled steel tube is located can be truly restored, reference is provided for quantitative research on the mechanical property of the concrete-filled steel tube in the complex plateau environment, and the test cost is reduced.

This invention discloses a method for continuous microwave vulcanization and seamless corner molding of automotive sealing strips, relating to the field of automotive parts manufacturing technology. It involves mixing a surface-functionalized semiconductor quantum dot microwave sensitizer and a microencapsulated activator system with an EPDM rubber substrate to prepare a main intelligent composite material. A special digital material filament containing a depolymerizing agent and co-frequency heterogeneous quantum dots is prepared for the corners. After precision extrusion and shaping, the main intelligent composite material is fed into a dynamic microwave vulcanization chamber. Through quantum dot-catalyzed selective microwave vulcanization, continuous and uniform vulcanization of the sealing strip's main body is achieved. This invention achieves seamless molecular-level fusion between the corners and the main body, completely eliminating physical seams found in traditional processes, significantly improving the sealing performance and long-term durability of the sealing strip. The synergistic use of quantum dot-catalyzed selective microwave vulcanization and multi-energy field co-vulcanization ensures uniform vulcanization of the sealing strip's main body and corner areas, resulting in significantly improved performance consistency.