445 results about "Saline mist" patented technology

The invention belongs to the technical field of material and coating corrosion tests, and relates to a whole sea area atmospheric environment comprehensive simulation test system, which adopts an integrated structural design, and performs integrated coupling of various environmental test simulation capabilities on the basis of a single-function test box. The device has the test capabilities of metal material corrosion acceleration test, organic composite material and coating aging evaluation and the like, can simulate the global marine atmospheric environment and coupling of multiple factors such as air temperature, humidity, salt mist and ultraviolet irradiation, can perform comprehensive test evaluation on the whole-sea-area marine atmospheric environment of typical materials, avoids the problem of inconvenient operation of corrosion tests, and has a wide application prospect. The device can be used for corrosion and ultraviolet aging tests of conventional marine atmospheric environment corrosion media, polar regions, tropical regions and other extreme marine atmospheric environments, and material corrosion tests for simulating marine splash zones, tidal range zones and the like. The device is simple in structure and convenient to operate, and coupling of multiple factors of high and low temperature, humidity, salt mist, ultraviolet illumination and periodic infiltration can be achieved.

The invention discloses a film material surface defect detection method and system based on machine vision, and relates to the technical field of machine vision. Joint modeling is carried out by utilizing a local reflectivity difference value Ploc (x, y) of a pixel coordinate (x, y), a local stacking disturbance index S (x, y) of the pixel coordinate (x, y) and a local gray variance Wvar (x, y) of the pixel coordinate (x, y) in a film material image irradiated by a dual-angle light source, and the detection sensitivity of asymmetric optical disturbance caused by trace salt mist deposition is enhanced. Compared with the current situation that a traditional visual detection method is insufficient in response to early corrosion spots, the method has the advantages that a light reflection subsurface corrosion map can be effectively formed through quantitative combination of two factors of reflection anomaly and structural disturbance in the image, and rapid positioning and early warning of the membrane material salt spray corrosion initial stage are achieved.

The invention relates to the field of radiator testing, in particular to a radiator salt spray test data intelligent processing method and system.The method comprises the steps that test data in the salt spray test process are obtained and preprocessed, and fitting curves of salt spray concentration data and corrosion current density data are generated respectively; acquiring a peak point of the fitting curve of the salt mist concentration data as a segmentation point, matching the two curves through a dynamic time warping algorithm, and calculating a matching degree to determine the segmentation point on the fitting curve of the corrosion current density data; and calculating a correlation value based on the time difference of the matching point pairs and the shortest path distance, dynamically determining weight distribution of the salt mist concentration data and the corrosion current density data in a forgetting gate formula, correcting the forgetting gate formula, and performing test data prediction by using the corrected LSTM model. According to the method, the correlation values of the corresponding segments of the two curves are calculated, and the weights of the salt mist concentration data and the corrosion current density data in the forgetting gate are dynamically adjusted, so that the adaptability of the model to complex data and the prediction accuracy are improved.

The invention discloses corrosion resistance test equipment for a skylight cross beam, relates to the technical field of cross beam tests, and aims to solve the technical problems that a corrosion test of a static placement cross beam sample cannot reflect the influence of dynamic stress on corrosion cracks in the cross beam, and particularly whether stress corrosion cracking can be caused in a salt spray environment or not. Comprising a salt spray testing machine, the salt spray testing machine comprises a test box body, a plurality of test rack assemblies are arranged in an inner cavity of the test box body, each test rack assembly comprises a static test rack and a dynamic test rack, each dynamic test rack comprises a rhombic movable rack, and each rhombic movable rack comprises an upper pressing block, a lower falling block, two symmetrically-arranged bearing blocks and four movable rods. A jolting pressing assembly is arranged at the bottom of the upper pressing block. The device has the advantages that the cross beam sample is in a dynamic stress state in a salt spray corrosion test, the stress condition of the cross beam in actual use is truly simulated, and the test environment is highly close to the actual working condition.

The utility model discloses a combined type salt spray corrosion test box, which relates to the technical field of salt spray tests and comprises a base, a box body is fixedly mounted at the top of the base, an opening is formed in the upper end of the front surface of the box body, a movable door body is fixedly mounted on the outer side of the opening, and a spray mechanism is fixedly mounted at the upper end in the box body. By the adoption of the structure, the lead screw can be driven to rotate by starting the driving motor to operate, the sliding blocks at the two ends of the lead screw can be synchronously driven to slide mutually due to the fact that the threads at the two ends of the lead screw are opposite in rotating direction, the sliding blocks can be driven to move mutually in a reciprocating mode by controlling forward rotation and reverse rotation of the driving motor, and the atomization spray head moves in a reciprocating mode. The two groups of atomizing nozzles do reciprocating linear movement, so that salt mist can be uniformly sprayed into the box body, parts at different positions in the box body are corroded and contacted to be in the same state, and the detection precision of the equipment is improved.

The utility model relates to a step-in alternating salt spray test bin which comprises a box body, the test area is arranged in the box body; the salt spray test device is arranged in the box body and is communicated with the test area; the temperature and humidity control device is mounted on one side of the test area; the heating device is arranged on the inner side wall of the test area, corrosion, aging and other conditions of a test sample in a salt spray environment are simulated through the salt spray test device, the test temperature and humidity are controlled through the temperature and humidity control device, the influence of different environment temperatures and humidity on the test sample is simulated, and the environment temperature during salt spray test is controlled through the heating device. The device can simulate the influence of salt mist on a test sample under different environment temperature conditions, can be used for independent temperature and humidity tests and independent salt mist tests, can also realize alternating test conditions through multi-factor coupling, can simulate and enhance severe natural environment conditions more truly, can quickly detect and test the corrosion resistance of materials, and is accurate in test data.

The invention discloses salt spray environment test equipment for environment test, and belongs to the technical field of environment test. The device comprises a test box, a spraying assembly is installed in the test box, a plurality of fans are fixedly installed in the test box, a plurality of heaters are fixedly connected in the test box, a test rack is placed in the test box, a clamping assembly is installed on the test rack, and a simulation assembly is further installed on the test rack. The simulation assembly comprises a shielding assembly, an impact assembly and a friction assembly, the shielding assembly comprises a supporting frame, and a hydraulic cylinder is fixedly installed on the supporting frame. In the circulating corrosion test process, the hydraulic cylinder can be started, atomized saline water is prevented from falling on a sample, and the shielding time can be manually set, so that a control test is formed, that is, one part of the sample is shielded, the other part of the sample is not shielded, and different shielding time can be set on different samples, so that the accuracy of the control test is improved. And test results are enriched.

The invention discloses a corrosion resistance detection device and detection method for corroded foil processing, and relates to the technical field of material corrosion detection.The corrosion resistance detection device comprises a detection box, an exhaust mechanism is arranged at the upper end of the detection box, an ultraviolet lamp is arranged at the top of the inner wall of the detection box, and a traction mechanism is arranged on one side of the detection box. The atomized corrosive liquid is closer to corrosive media such as acid rain and salt mist in natural atmosphere, a complex corrosive environment can be simulated more truly, the superimposed effect of multiple corrosion mechanisms such as photo-oxidation corrosion and damp and hot corrosion can be researched through the synergistic effect of illumination, humidity and the corrosive liquid, the atomized corrosive liquid is close to a complex scene in practical application, and the application prospect is wide. By comparing the corrosion rate under the illumination condition or not, the promotion effect of ultraviolet rays on material corrosion, such as photocatalytic oxidation, corrosion foil on a corrosion swing frame mechanism and corrosion foil on a corrosion diffusion mechanism, can be determined, and the influence of different humidity levels on corrosion types, such as pitting corrosion and crevice corrosion, can be analyzed.

The invention discloses a multifunctional geotechnical mechanical testing system for controlling temperature, humidity and salinity in an extreme environment, and relates to the technical field of ocean geotechnical engineering and geotechnical engineering. The system integrates a high-precision temperature and humidity and salinity control system, can accurately simulate the influence of complex environments such as extreme temperature and humidity, salt spray corrosion and the like on the mechanical properties of geotechnical materials, supports a direct shear test, a pull-out test, a soil body single-particle crushing test and a geosynthetic material stretching and puncturing test, can distinguish static, dynamic and long-term creep test modes, and can be used for testing the mechanical properties of the geotechnical materials. Comprising creep mechanical property testing under cyclic direct shear and continuous load. A visual monitoring assembly is additionally arranged, so that the microscopic deformation and damage process of the sample can be recorded in real time. Through multifunctional integration, temperature, humidity and salinity joint control, visual monitoring and dynamic and static coupling test devices, the technical bottlenecks of single function, environment simulation limitation and microcosmic observation deficiency of traditional equipment are solved, and high engineering application value and popularization potential are achieved.

The invention discloses a salt spray test box, which belongs to the technical field of corrosion resistance testing, and comprises a salt spray test box body, and an anti-blocking mechanism is arranged in the salt spray test box body; according to the salt spray test box, the anti-blocking mechanism is arranged, so that the problem that the salt spray test box is easily blocked by salt particles in the long-time operation process is effectively solved, the anti-blocking mechanism adopts matched work of a cleaning brush, a scraper blade and a reset spring, continuous cleaning of a filter screen and a conveying pipe is ensured, and specifically, after a salt-water mixture enters the conveying pipe, the salt-water mixture is prevented from entering the conveying pipe; the transmission system drives the support to rotate, the support rotates to drive the reset spring to rotate and push the supporting plate and the cleaning brush to move, the cleaning brush is tightly attached to the surface of the filter screen, automatic cleaning is carried out, undissolved salt particles are prevented from entering the conveying pump and the spray head, and it is ensured that salt water can be evenly and cleanly conveyed to a test sample; and equipment faults caused by salt particle blockage are avoided.

The invention relates to a method for testing and evaluating water paint gridding adhesive force of a hydraulic support. The test method comprises the following test steps: S1, preparing a sample and spraying a water-based paint coating to ensure that the thickness of the coating is between 25 microns and 150 microns; s2, a 1 mm or 2 mm scratching knife is used for scratching grids on the coating, and it is ensured that scratches penetrate through the coating to reach the base material; s3, putting the sample into a test box, and alternately carrying out salt mist and damp heat tests; and S4, observing and recording the width of the coating after the scratches spread and the width of the coating after the scratches are stripped in the gridding area. According to the method, a quantitative evaluation method is adopted to replace a traditional mode depending on visual observation and experience judgment, so that the objectivity and reliability of a test result are remarkably improved. The method not only ensures the consistency and repeatability of the test process, but also realizes quantitative evaluation of the adhesive force of the coating by defining an adhesive force score, a series of parameters and weights thereof, and provides clear data support for the improvement of the performance of the coating.

The utility model relates to a composite salt spray testing machine, which comprises a box body, a box cover hinged on the box body, a test chamber arranged in the box body, a sample holder arranged in the test chamber, a salt spray test component arranged on the inner side wall of the test chamber, a high-low temperature test component arranged on one side of the test chamber, a humidifying component arranged in the box body, and communicated with the test chamber. A heating assembly is arranged at the bottom of the test chamber, and a salt spray test assembly, a high-low temperature test assembly, a humidifying assembly and a heating assembly are arranged in the test chamber, so that a test sample is simulated to be exposed to salt spray, dry, condensed water and humid and hot environments, a certain test can be independently carried out, and the conditions can be coupled to form a complex alternating test; the device can simulate and enhance severe natural environment conditions more truly, quickly detect and test the corrosion resistance of materials, can complete various tests without moving samples, and saves labor cost and installation sites.

The invention discloses a high-temperature-resistant sealing agent and a preparation method thereof, and relates to the technical field of chemical assistants, and the high-temperature-resistant sealing agent is characterized by comprising the following components in parts by weight: 25-32 parts of acidic nano silica sol, 56-65 parts of a cosolvent, 8-12 parts of a hydrolysis inhibitor, 9-12 parts of a silane coupling agent A, 5.5-6.8 parts of a silane coupling agent B and 0.01-0.015 part of a wetting agent. The high-temperature-resistant sealing agent has the effects that the high-temperature-resistant sealing agent is not yellowed, decomposed and dropped after being baked for 2 hours in an oven at the temperature of 250 DEG C, and is not corroded after being corroded by salt mist for 1000 hours.

The invention discloses a processing process fault prediction method for essential oil production, and relates to the technical field of essential oil processing, and the method comprises the steps: constructing an environment equipment coupling model, and drawing an electrical equipment insulation resistance attenuation curve through a salt mist deposition experiment; environment disturbance variables are introduced into the generative adversarial network, and an anomaly detector capable of recognizing salt spray corrosion characteristics and humidity condensation characteristics is trained; capturing time-space correlation between temperature mutation and quality fluctuation through a self-attention mechanism; calculating a probability density function of the residual service life of the equipment in real time, and automatically correcting a temperature over-limit threshold value based on the residual service life distribution; calculating the contribution degree of each node to the fault through intervention simulation; and constructing a digital twinborn model containing thermodynamic and hydrodynamic characteristics. Through environment dynamic modeling, causal reasoning and digital twinning methods, the key problems of low fault prediction precision, poor traceability efficiency and lack of quantitative support in decision making in essential oil production are solved.

The invention relates to the technical field of thermal barrier coatings, in particular to a marine salt spray corrosion resistant thermal barrier coating and a preparation method thereof. The thermal barrier coating comprises a base body, a bonding layer and a ceramic embedding layer which are sequentially arranged from bottom to top. The ceramic embedded layer comprises a transition ceramic layer and a fiber toughening layer; a plurality of grooves are uniformly formed in one side surface, far away from the bonding layer, of the transition ceramic layer; protrusions in one-to-one correspondence with the grooves are arranged on the side face, making contact with the transition ceramic layer, of the fiber toughening layer, and the transition ceramic layer and the fiber toughening layer are matched and compounded into a layered structure through the grooves and the protrusions. Through a multi-layer composite structure and an interlayer embedded structure, the composite material has good corrosion resistance, thermal shock resistance and heat insulation performance, and the preparation process is simple, easy to implement and suitable for large-scale production.

In order to simulate the extreme ocean atmospheric environment on the surface of an enveloping naval vessel and the surface of ocean service equipment, the utility model provides a broad-spectrum salt mist artificial simulation system, a double-order saturation barrel is adopted to progressively adjust the airflow temperature within the range of (room temperature + 5 DEG C)-90 DEG C, and a first-order saturation barrel enables airflow and heated pure water to be mixed to generate first-order hot airflow; then conveying to a second-order saturation barrel to be mixed with heated saline water to generate second-order hot air flow, finally mixing the second-order hot air flow with a saline solution with the pH value of 2.0-7.0, and atomizing through a nozzle to generate neutral or acidic broad-spectrum salt mist with the temperature of (room temperature + 5 DEG C)-90 DEG C.

The utility model provides an electronic device which comprises a first structural member and a second structural member, the first structural member comprises a first metal matrix, the second structural member comprises a second metal matrix and a decoration layer arranged on one side of the second metal matrix, and the first metal matrix is electrically connected with the second metal matrix. The corrosion potential of the first metal matrix is lower than that of the second metal matrix; an insulating layer is further arranged on the side, away from the second metal base body, of the decorative layer, the insulating layer is a transparent or semitransparent layer, and the impedance of the insulating layer is larger than or equal to 2000 ohms. The insulating layer is arranged on the decorative layer on the second metal matrix with high corrosion potential, so that a potential difference caused by a closed loop formed between the metal matrixes with different chemical activities can be prevented in a sweat environment or a salt mist environment, and the probability of electrocorrosion of the first metal matrix with low corrosion potential is further reduced; and the long-term use requirement of the electronic equipment is well met.

The invention relates to the technical field of coating detection, in particular to salt mist simulation experiment equipment for coating detection. The salt mist simulation experiment equipment for paint detection comprises a barrel body and a top cover, the barrel body and the top cover are combined to form a corrosion space, and the corrosion space is used for containing corrosion liquid; a heating assembly used for heating is arranged in the barrel body. The mist generator is used for atomizing the corrosive liquid in the barrel body, a cavity ring is arranged on the barrel body, a nozzle is arranged on the inner wall of the barrel body, the nozzle is communicated with the cavity ring, and the mist generator is communicated with the inner bottom of the barrel body and the cavity ring. And the clamping frame is provided with a plurality of clamping units for fixing the coating sample wafer. And the rotation driving piece is in transmission connection with the clamping frame and used for driving the clamping frame to rotate. Under the action of stirring, centrifugal force and air flow in the barrel body, non-uniform corrosion caused by accumulation of liquid drops on the coating sample sheet is avoided, and the uniformity of a corrosion experiment and the objectivity of detection are improved.

The invention discloses a method for monitoring the heat dissipation performance of a module in a salt mist environment, and belongs to the technical field of material performance monitoring, and the method comprises the steps: carrying out the continuous spectrum data collection of the heat dissipation surface of the module in the salt mist environment, obtaining original multispectral data, carrying out the background correction, generating multispectral imaging data, and recognizing an action region; analyzing the spectral response attribute of the action area, obtaining a characteristic spectral fingerprint, carrying out physical parameter inversion, obtaining heat dissipation related physical parameters, and combining heat flow distribution data during the operation of the synchronous acquisition module to establish a related mapping relationship; and carrying out quantitative evaluation on the influence degree and the degradation trend of the salt mist environment on the heat dissipation performance of the module by combining the related mapping relationship to obtain a performance evaluation report. According to the method, the technical means of combining multispectral imaging analysis and heat flow data modeling is adopted, and quantitative diagnosis and trend prediction of heat dissipation performance degradation can be achieved.

The invention relates to the technical field of glass detection, in particular to a salt spray test device for optical glass performance detection and a test method of the salt spray test device. According to the technical scheme, a plurality of placement frames distributed at equal intervals are installed in a test box body, each placement frame comprises a rotatable frame body, air guide plates are arranged on the two sides of the test box body, a water absorption plate is arranged on the top face of a cover body, arc-shaped flow guide plates are installed at the corners of the cover body in a sliding mode, and the arc-shaped flow guide plates and the water absorption plates are arranged in an attached mode; a pushing piece is arranged on the arc-shaped flow guide plate, and a water diversion piece is arranged in the water absorption plate. The air deflectors and the windward groove bodies are installed on the two sides of the test box body, air is introduced, the guiding and drainage effects on salt mist are formed, rapid diffusion of the salt mist is guaranteed, in addition, when the frame body rotates, the air deflectors incline, and therefore the salt mist can be rapidly dispersed. Therefore, the changed direction can still guide the salt mist airflow to flow towards the optical glass experiment sheet in a path.

The invention relates to the technical field of coatings, in particular to a nano anticorrosive coating. The invention provides a nano anticorrosive coating which comprises a component A and a component B. The component A comprises 40-100 parts by weight of bisphenol A epoxy resin, 0.3-5 parts by weight of cerium dioxide modified hexagonal boron nitride nanosheets and 60-85 parts by weight of lamellar structure zinc-aluminum alloy powder. And the component B comprises 20-40 parts of a polyamide curing agent. The zinc-aluminum alloy particles can enhance the toughness of the coating, and the cerium dioxide and hexagonal boron nitride are added to improve the hardness and wear resistance of the coating. And cerium dioxide and hexagonal boron nitride are added, so that the impedance modulus value of the coating is remarkably improved, the corrosion current density is reduced, and the corrosion resistance of the coating is enhanced. In a salt spray test, the modified coating shows better salt spray resistance, and a coating stripping area is not expanded.

The utility model discloses a salt spray test chamber energy-saving water replenishing device which comprises a workbench, a control cabinet is installed on the left side of the top wall of the workbench, a chamber body is fixedly installed on the left side of the top wall of the workbench, a controller is installed on the front wall of the control cabinet, a water replenishing assembly is installed in the control cabinet, and a placing assembly is installed in the chamber body. An atomization assembly is mounted on the inner bottom wall of the box body. The salt spray test box disclosed by the utility model relates to the technical field of salt spray test boxes. According to the energy-saving water supplementing device for the salt spray test box, the L-shaped placing frame drives the placing plate and the inclined plate to be placed in the box body to be attached to the blocking strip, and the concentration of salt spray in the box body is detected through the concentration sensor, so that when a salt spray corrosion resistance test is carried out, products to be detected can be firstly placed in a classified mode, and multiple batches of tests can be carried out at the same time; the salt solution on the surface of the sample cannot drip to the surfaces of other samples on the lower portion, and when the salt solution is insufficient, water can be automatically supplemented without additional manual intervention.

The invention belongs to the technical field of salt spray tests, and particularly relates to a test device and method for simulating hot corrosion of an engine turbine blade material, and the method comprises the following steps: after a sample is cleaned and dried, a nozzle is controlled by a mechanical arm to atomize a saturated salt solution, and the saturated salt solution is precisely sputtered to the surface of the sample preheated to 300-500 DEG C to form a uniform salt film; the sample is placed in a heating furnace at the temperature of 600-1000 DEG C to be subjected to heat preservation for 50-55 min and then cooled by compressed air for 5-10 min, and cold and hot circulation A corrosion kinetic curve is drawn based on the unit area weight increment, corrosion products are removed through a molten alkali electrolysis method, and the hot corrosion rate is calculated. The device comprises a groove type test bed with a high-temperature-resistant coating, a slit type nozzle driven by a mechanical arm, an infrared heating device and a cold and hot circulation system. According to the method, the salt film is deposited through precise position control of the mechanical arm, the cold and hot alternating working condition is simulated, the problems that a traditional salt coating method is not uniform and a salt leaching method is distorted in environment are solved by combining corrosion dynamics and microscopic characteristic analysis, and scientific evaluation of the corrosion resistance of the aero-engine blade material is achieved.

The utility model discloses a uniform humidifying device for a salt spray test box, and relates to the technical field of test boxes. Comprising a test box, the outer wall of the test box is fixedly connected with a control box, the top of the test box is rotatably connected with an upper cover body, the upper cover body is of an inverted V-shaped structure, rectangular grooves are symmetrically formed in the outer wall of the top of the upper cover body, the inner walls of the rectangular grooves are fixedly connected with PVC plates, and the inner wall of the upper cover body is provided with a humidifying assembly; the humidifying assembly comprises two triangular supports, a ring pipe is arranged between the two triangular supports, and the outer wall of the ring pipe is fixedly connected with a positioning block. Installation conditions are provided for the ring pipe and the flow guide pipe through the tripod, the water pipe and the ring pipe are communicated through the flow guide pipe, during testing, after the cover body is covered and saline water is introduced into the ring pipe, the atomizing nozzles on the ring pipe are distributed in an equidistant array mode, and when the saline water is atomized through the atomizing nozzles on the ring pipe, the internal environment of the test box can be evenly humidified.

The invention relates to the technical field of material performance testing, and discloses a multi-parameter simulation salt spray environment test system and method, and the system comprises a multi-parameter cooperative control module, a bionic fog drop generation and salt spray adjustment module, an energy recovery and resource circulation module, a salt spray environment adaptive compensation module, and a test data intelligent analysis module. The modules are in closed-loop communication through an industrial Ethernet; the method comprises the steps of test preparation, model initialization, dynamic simulation and compensation, energy resource circulation and data processing ending, specifically, a salt mist concentration-temperature-humidity-wind speed coupling model is constructed, uniform salt mist is generated through bionic atomization and electrostatic adsorption, self-adaptive compensation is achieved in combination with partition sensing and corrosion current detection, and the salt mist concentration-temperature-humidity-wind speed coupling model is obtained. And heat is recovered, and condensate water and non-atomized saline water are recycled. The problems of multi-parameter coupling interference, resource waste and low data value in the prior art are solved, the simulation precision and the resource utilization rate are improved, and the method is suitable for multi-field material corrosion resistance testing.

The invention relates to the technical field of salt spray corrosion tests, in particular to cable assembly salt spray corrosion resistance testing equipment which comprises a box body and a cable clamping seat arranged in the box body. When the cable assembly salt spray corrosion resistance testing equipment is used, a driving mechanism drives a rotating frame to rotate around a center shaft of the rotating frame, and a plurality of salt spray nozzles are driven to rotate synchronously; all-around and dead-corner-free wrapping type spraying from top to bottom and from outside to inside is realized, and each surface of a sample can be uniformly covered by salt mist; the deflection nozzle is driven by the swing mechanism to perform periodic reciprocating swing, and swing airflow can effectively blow the surface of a cable sample, so that a heavy liquid film on the surface of the sample can be thinned and disturbed, unreal flowing caused by the gravity action is prevented, and the state of the liquid film is closer to the effect of wind and rain in the natural environment; and a weak dead angle possibly existing in spraying of the enhanced rotating frame can be supplemented, so that the distribution uniformity of salt mist and the severity of testing are further improved, and the authenticity and the accuracy of environment simulation are remarkably improved.

The invention relates to the technical field of cables, provides an environment-friendly marine cable, and aims to solve the technical problem that an existing marine cable is insufficient in comprehensive protection capability. The cable sequentially comprises a cable core conductor, an insulating layer, an inner protective layer, a viscoelastic damping and stress decoupling layer, a dual-function sacrificial hydrogel layer and a high-durability environment-friendly outer sheath from inside to outside. By the adoption of the technical scheme, integrated cooperative protection of the structure and materials can be achieved, dual active protection on moisture and salt mist is provided, the cable is endowed with excellent mechanical stress tolerance, and high environmental protection performance and long-period durability of the cable are guaranteed.

The invention relates to the technical field of detection, in particular to an anchor chain corrosion-resistant coating performance detection device which comprises a box body, a box cover is hinged to the box body, the lower end of the box body is fixedly connected with a base, and a salt mist spraying assembly used for anchor chain corrosion resistance detection is arranged in the box body; a containing box is arranged in the box body, a threaded rod is rotationally connected to the box body through a sealing bearing, a moving block is connected to the threaded rod in a threaded and penetrating mode, a moving plate is fixedly connected to the moving block, a sliding edge strip is fixedly connected to the moving plate, and a limiting groove is formed in the inner wall of the box body. The sliding ribs are arranged in the limiting grooves in a sliding mode. According to the invention, the detection accuracy can be improved.

The invention relates to the technical field of TOM diaphragm testing, in particular to a weather resistance testing device for automobile TOM diaphragm production, which comprises a box body, a box door and the like, and the box door is hinged to the front side of the box body. According to the invention, saline water can be sprayed onto the TOM membrane through the atomizing nozzle for salt spray test, clear water can be sprayed onto the TOM membrane for simulating humidity change in the natural environment, the ultraviolet lamp can irradiate the TOM membrane for simulating illumination in the natural environment, and the bidirectional temperature controller can control the temperature in the cylinder and the temperature in the rotating cylinder. The temperature change in the natural environment is simulated, various climates can be tested through one device, the TOM membrane does not need to be transferred frequently, the workload of workers can be reduced, the TOM membrane can be prevented from being interfered by the outside, and the accuracy of the test result is ensured.

A low-temperature salt spray corrosion system belongs to the technical field of polar environment salt spray tests and can be used for low-temperature salt spray environment corrosion tests of equipment and materials. The corrosion system comprises a low-temperature environment box, a salt spray test box, an electric heating system, salt spray spraying equipment, a water tank and an air pump. The anti-freezing liquid pipeline system has heat preservation and heating functions and is matched with the gas path system to complete conveying of a salt solution in a low-temperature environment; 2) a nozzle system with heat preservation and electric heating functions and adjustable particle size ensures low-temperature spraying of mist salt mist liquid drops; (3) an anti-freezing drainage system with a heating function ensures low-temperature drainage of deposition liquid in the box body; and 4) an electric heating function anti-freezing observation window system ensures the observation function of the box body at low temperature. Through the targeted low-temperature anti-freezing design, the low-temperature corrosion capability verification of the equipment material is realized, and the low-temperature freezing problem of the conventional salt mist box is solved.