30results about How to "Simulated" patented technology

The present invention discloses a corrosion simulation method and a corrosion resistance evaluation method of a galvanized steel coating in industrial atmosphere environment, and belongs to the technical field of atmospheric corrosion of galvanized steel. The galvanized steel as a test material is used for simulation of an industrial atmosphere corrosion medium spraying solution comprising 10.41g / L of NaHSO3, 0.585g / L of NaCl, and the balance of distilled water; and spraying / drying cycle corrosion is used for simulation of industrial atmosphere corrosion process. When in the evaluation of the corrosion resistance of the galvanized steel coating, in the phase with no red rust on the coating surface, the corrosion resistance of the galvanized steel coating can be determined by the corrosion rate; and when the red rust appears on the galvanized steel coating, the protective effect of the galvanized steel coating can be determined by the red rust appearance time. The corrosion simulation method and the corrosion resistance evaluation method can be used to simulate the industrial atmosphere corrosion process, has simulation, acceleration and reproducibility properties, and can be used for rapid evaluation of the corrosion resistance of the galvanized steel coating in the industrial atmosphere environment, and the basis for rational use of galvanized protection and prediction of the protection life is provided.

The invention relates to a simulation technology of atmosphere corrosion on material and anticorrosion paint, and especially provides an accelerated testing apparatus for the simulation of the corrosion by industrially polluted atmosphere. The apparatus is provided with a reaction box, a box cover, an air inlet and outlet pipe, and a humiture monitoring probe. Besides, an inner chamber of the reaction box is divided into an upper layer chamber and a lower layer chamber, and the upper layer chamber is a corroding chamber and the lower layer chamber is an atmosphere generating chamber; the box cover is movably arranged on the top of the reaction box, and the air inlet and outlet pipe and the humiture monitoring probe are inserted into the box cover; and the air inlet and outlet pipe is inserted into the sidewall of the reaction box which has the atmosphere generating chamber. The apparatus has two methods of generating corrosive atmosphere: the chemical method and the external connection of gas source method, and a problem of relying on the single external connection of gas source to generate the corrosive atmosphere is solved. Simulation of the corrosion by polluted atmosphere especially by heavy-industry polluted atmosphere with the invention could be used for researching and evaluating the corrosion action of metal material and the anticorrosion paint in the heavy-industry polluted atmosphere, so as to provide evidence for reasonably choosing the material and choosing the appropriate protection method.

The invention relates to a method for simulating the corrosion of weathering steel in a high-humidity marine atmosphere. The test parameters of the method include: the weathering steel sample undergoes a cyclic process of immersion, wetting and drying in the immersion corrosion tester , the cycle period is 60min±5min; wherein the immersion time is 2min±1min, and the wetting time is 10min±2min; the immersion solution is NaCl solution, wherein the concentration of NaCl solution is 2.00%±0.05%; the temperature of the immersion solution is 35°C ±2°C; the humidity in the immersion corrosion tester is 80%RH±5%RH; the total corrosion time of the weathering steel sample in the immersion corrosion tester is greater than or equal to 72h; the immersion corrosion test The oven light in the appliance remains on. This method has good simulation, acceleration and reproducibility, and provides a basis for studying the corrosion law and corrosion resistance of weathering steel in high-humidity marine environment.

The invention provides a method for evaluating the permeating performance of a chemical imbibition agent. According to the evaluation method, the elevating coefficient Sc and permeation speed Sp of a capillary can be measured, thus the permeation force Fp can be calculate according to a formula: Fp=Sc*Sp; the performance of a chemical imbibition agent can be evaluated through a ratio (R) of the permeation force Fp of a chemical imbibition agent to a simulated water permeation force, and if the R is greater than 1.0, the chemical imbibition agent has a good imbibition effect. The method can be used to quantitatively evaluate the permeating performance of a chemical imbibition agent for low permeability reservoir. The method has the advantages that the indoor tests become convenient and fast, the comparison and quantitation become more convenient; the permeating performance and diffusion property of different chemical imbibition agents can be effectively compared; corresponding oil sand and capillary that are similar to oil reservoirs are used to simulate the oil reservoirs, at the same time, the experiment temperature is identical with the temperature of stratum, and thus the experiment is closer to the actual state.

The invention relates to an atmospheric corrosion simulation technology for low-alloy steel, in particular to a test method for stimulating the corrosion process of low-alloy steel in the atmospheric environment in a salt lake. The method comprises the following steps: the low-alloy steel is taken as the test material, the salt lake water diluted by 20-50times is used as the corrosive medium, the low-alloy steel is dipped, dried and humidified in sequence every 20-30 minutes, wherein the low-alloy steel is dipped for 2-4 min at 40-50 DEG C; the low-alloy steel is dried for 15-20 min at 50-70 DEG C; the low-alloy steel is humidified for 3-6 min at 40-50 DEG C; and the test time is 6-96 h. The invention has the imitativeness, the acceleration capability and the reproducibility so as to stimulate the atmospheric corrosion process in the slat lake, can be used for studying the corrosion behavior of the low-alloy steel in the atmospheric environment in the salt lake, can perform evaluation and predication and provides the basis for reasonably selecting the material and using the proper protection method.

The invention discloses a rapid evaluation method for stress corrosion of low-alloy structural steel in an atmospheric environment. The rapid evaluation method is a stress corrosion sensitivity evaluation method constructed based on electrochemical tests and based on atmospheric environment stress corrosion indoor and outdoor simulation and acceleration research data and a stress corrosion electrochemical mechanism thereof. Compared with a traditional outdoor atmospheric exposure test method, the rapid evaluation method has high operability in indoor tests and short test time, the evaluation of stress corrosion performance of the low-alloy steel can be realized, and the rapid evaluation method can be further used for the research and development, production and relevant evaluation and testing in the material selection process of the low-alloy structural steel. The rapid evaluation method has the characteristics of simulation, acceleration and effectiveness, a new method is provided forthe evaluation study of the stress corrosion sensitivity of the low-alloy structural steel in the atmospheric environment, and thus an advantageous basis is provided for the use and protection of materials.

The invention discloses a large-scale building property management platform. The management platform comprises a BIM database module, a BIM platform module and an intelligent property management platform module. The intelligent property management platform module is constructed based on the BIM database module and the BIM platform. The function module of the property management platform comprisesan operation information release system, a building space and equipment operation and maintenance management system, a public safety operation and maintenance management system, and a building energyconsumption and environment monitoring system, wherein the function module comprises an operation information release system, a building space and equipment operation and maintenance management system, a public safety operation and maintenance management system and a building energy consumption and environment monitoring system. The invention has the beneficial effects that the system is applied to the large-scale building property management and can be used as a standardized platform for different property management projects, greatly improving the project management efficiency and service level of the property management enterprise.

The invention discloses a test method for simulating a corrosion process of stainless steel in an atmospheric environment of a salt lake, and belongs to the technical field of atmospheric corrosion simulation of the stainless steel. Firstly, an ultraviolet lamp is installed in a room of a high-low temperature thermal-humidity test chamber, and a lamp wire is led out from the chamber body and is connected with an ultraviolet lamp switch. The stainless steel is used as a test material, an etching solution is deposited on the surface of a test sample by using a micro-injector and is deposited onthe surface of the test piece once after every two days. The test is alternately performed according to "wet-dry". The relative humidity in a wetting process is 70-90%, the wetting time is 1-2 hours,and the ultraviolet lamp is in a turned off state; and the relative humidity in a drying process is 10-35%, the drying time is 2-4 hours, and the ultraviolet lamp is in a turned on state. The resultsobtained by the test method provided by the invention have the characteristics of simulation, acceleration and reproducibility, and can be used for studying the corrosion behavior and corrosion mechanism of the stainless steel in the atmospheric environment of the salt lake, and evaluating and predicting the atmospheric corrosion resistance of the stainless steel in the salt lake.

The invention discloses a method for drawing a foundation pit excavation drawing. The method comprises the following steps: step 1, according to a basic plane drawing of a building, applying building information model software to establishment of a foundation pit mass model, and enabling the foundation pit mass model to be consistent with the design dimension proportion in the basic plane drawing; step 2, laying off on the foundation pit mass model according to the building construction drawing, and forming an excavation model; step 3, applying the software to creation of a two-dimensional foundation pit excavation drawing according to the excavation model; step 4, based on the two-dimensional foundation pit excavation drawing, carrying out foundation pit excavation, and meanwhile, utilizing the three-dimensional foundation pit mass model to assist understanding and review. The method, disclosed by the invention, can effectively solve the problem that the excavation drawing is difficult to draw because when a large-scale foundation pit is excavated, the location and lay-out is complicated; compared with the regular drawing method for the excavation drawing, the method can greatly reduce drawing workload and drawing time to shorten the work period; compared with the regular excavation drawing, in the exported excavation drawing, size marking is realized via the software automatically, so that the phenomena of marking missing and mis-marking can be greatly reduced, and the drawing is high in accuracy.

An electronic censer comprises a censer body, and an electronic incense and a driver which are disposed in the censer body. The electronic incense comprises a light guide bar and a light source. The driver is electrically connected with the light source. The electronic censer further comprises a camera module, a controller and an image processor. The camera module is disposed on one side wall of the censer body and user for shooting images of the periphery environment of the electronic censer. The controller is electrically connected to the camera module, the image processor and the driver and used for transmitting the images shot by the camera module to the image processor. The image processor comprises an environmental light sensing unit which is used for sensing the environmental light brightness of the images shot by the camera module. The controller is used for receiving the environmental light brightness sensed by the environmental light sensing unit and controlling the driver to drive the light source to emit appropriate light according to the environmental light brightness.

The invention discloses an accelerated corrosion testing method for simulating a soil corrosion process. The method comprises the following steps of: (1) preparing a testing solution from salt and water according to components of target soil; (2) adjusting the pH (Potential of Hydrogen) value of the testing solution to a testing value by H2SO4 or NaOH, thus taking the testing solution as an impregnation medium for simulating soil corrosion, wherein the testing value is the same as the pH value of the target soil; (3) mixing diatomite, which is taken as a carrier, with an impregnation medium to prepare testing soil which is basically same as the target soil in physicochemical properties; and (4) testing a test sample in the testing soil according a pre-set testing temperature, relative humidity and testing period.

An electronic censer comprises a censer body, and an electronic incense and a driver which are disposed in the censer body. The electronic incense comprises a light guide bar and a light source. The driver is electrically connected with the light source. The electronic censer further comprises a camera module, a controller and an image processor. The camera module is disposed on one side wall of the censer body and user for shooting images of the periphery environment of the electronic censer. The controller is electrically connected to the camera module, the image processor and the driver and used for transmitting the images shot by the camera module to the image processor. The image processor comprises an environmental light sensing unit which is used for sensing the environmental light brightness of the images shot by the camera module. The controller is used for receiving the environmental light brightness sensed by the environmental light sensing unit and controlling the driver to drive the light source to emit appropriate light according to the environmental light brightness.

The invention provides a method for evaluating the permeating performance of a chemical imbibition agent. According to the evaluation method, the elevating coefficient Sc and permeation speed Sp of a capillary can be measured, thus the permeation force Fp can be calculate according to a formula: Fp=Sc*Sp; the performance of a chemical imbibition agent can be evaluated through a ratio (R) of the permeation force Fp of a chemical imbibition agent to a simulated water permeation force, and if the R is greater than 1.0, the chemical imbibition agent has a good imbibition effect. The method can be used to quantitatively evaluate the permeating performance of a chemical imbibition agent for low permeability reservoir. The method has the advantages that the indoor tests become convenient and fast, the comparison and quantitation become more convenient; the permeating performance and diffusion property of different chemical imbibition agents can be effectively compared; corresponding oil sand and capillary that are similar to oil reservoirs are used to simulate the oil reservoirs, at the same time, the experiment temperature is identical with the temperature of stratum, and thus the experiment is closer to the actual state.

The invention relates to simulation technology of atmospheric corrosion of low alloy steel, and particularly provides a test method for simulating corrosion course of low alloy steel under marine industrial atmospheric environment. According to the invention, low alloy steel is used as a test material, and NaHSO3 and NaCl of different concentration ratios are deposited on the surface of a sample to be tested in advance, and alternate dry and wet tests are carried out according to the order of a wet test first and a dry test next, wherein test temperature is 30 DEG C, a wet test and a dry testboth last for 12 hours, relative humidity of the wet test and the dry test are 80% and 10% respectively, and the whole test lasts for 1 to 42 days. The test method provided in the invention has the characteristics of simulation, acceleration capability and reproducibility, and can be used to simulate marine industrial atmospheric corrosion course, to study corrosion behavior of various low alloy steel under an environment similar to the atmospheric environment and to evaluate and predict corrosion resistance of low alloy steel to marine industrial atmosphere, providing the basis for reasonable selection of low alloy steel and selection of appropriate protection methods.

The invention discloses a test method for simulating corrosion process of an aluminum alloy in a salt-rich salt lake in an atmospheric environment. According to the method, the aluminum alloy is used as a test material, salt lake water collected on site is used as a corrosion medium, salt solution drops are deposited on a sample surface in virtue of an aerosol generator, deposition is carried out once every three days, and the amount of deposited salt each time is 100 mu g / cm2; wetting and drying are alternately carried out, and a cycle of wetting and drying is carried out every three hours, wherein the temperature during wetting is 30 DEG C, wetting time is 1 h (wherein relative humidity is linearly increased to 80% from 20%), the temperature during drying is 40 DEG C, and drying time is 2 h (wherein relative humidity is linearly decreased to 20% from 80%); test time is 3 to 15 d. Test results obtained in the invention have the characteristics of simulation, acceleration and repeatability, and the method can be used for research on corrosion behaviors of the aluminum alloy in the salt-rich salt lake in the atmospheric environment and can realize rapid evaluation and prediction of atmospheric corrosion of the aluminum alloy.

The invention relates to a simulation technology of atmosphere corrosion on material and anticorrosion paint, and especially provides an accelerated testing apparatus for the simulation of the corrosion by industrially polluted atmosphere. The apparatus is provided with a reaction box, a box cover, an air inlet and outlet pipe, and a humiture monitoring probe. Besides, an inner chamber of the reaction box is divided into an upper layer chamber and a lower layer chamber, and the upper layer chamber is a corroding chamber and the lower layer chamber is an atmosphere generating chamber; the box cover is movably arranged on the top of the reaction box, and the air inlet and outlet pipe and the humiture monitoring probe are inserted into the box cover; and the air inlet and outlet pipe is inserted into the sidewall of the reaction box which has the atmosphere generating chamber. The apparatus has two methods of generating corrosive atmosphere: the chemical method and the external connection of gas source method, and a problem of relying on the single external connection of gas source to generate the corrosive atmosphere is solved. Simulation of the corrosion by polluted atmosphere especially by heavy-industry polluted atmosphere with the invention could be used for researching and evaluating the corrosion action of metal material and the anticorrosion paint in the heavy-industry polluted atmosphere, so as to provide evidence for reasonably choosing the material and choosing the appropriate protection method.