159 results about "Salt spray test" patented technology

The invention relates to the technical field of wind power blade material testing, and discloses a testing device and method for a salt spray corrosion test of a wind power blade composite material layer. According to the method, wind power blade composite material coating preparation parameters are obtained, and coating basic information is provided for subsequent performance evaluation; based on preset salt spray test environment control parameters, dynamic salt spray environment simulation conditions are generated so as to better fit the actual outdoor environment; then, a multi-sensor coupling monitoring network is constructed, real-time data acquisition is conducted on the corrosion process of the composite material coating, and comprehensive tracking of the corrosion process is achieved; processing real-time data by utilizing a corrosion characteristic analysis algorithm, generating a multi-dimensional corrosion characteristic index, and quantitatively representing the corrosion condition of the coating; and finally, evaluating the anti-corrosion stability of the new material coating in combination with the coating characteristic parameters and the multi-dimensional corrosion characteristic indexes. According to the method, the corrosion resistance of the coating in the actual environment can be more accurately reflected, and support is provided for research, development and application of the composite coating of the wind power blade.

The invention provides a long-acting anticorrosive epoxy powder coating and a preparation method thereof. The coating comprises epoxy resin, polyester resin, thiadiazole corrosion inhibitor loaded cerium-doped hydrotalcite composite particles, silane modified mica iron oxide, zinc phosphate, barium sulfate and the like. The core innovation lies in that 2-amino-5-(4-hydroxyphenyl)-1, 3, 4-thiadiazole corrosion inhibitor molecules are designed and synthesized, the molecules are loaded between cerium-doped magnesium-aluminum hydrotalcite nano container layers through an anion exchange method, corrosion environment pH responsive gradient release is achieved, a coating constructs a passive shielding, active corrosion inhibition and interface anchoring triple protection mechanism in the coating, and the corrosion resistance of the coating is improved. The neutral salt spray test resistance exceeds 2000h, and the coating is suitable for long-acting corrosion protection of iron accessories and cable bridges.

The application relates to a motor shell rust spot identification method, device, equipment and computer readable medium. The method comprises the following steps: acquiring a first motor shell image before a salt spray test and a second motor shell image after the salt spray test; performing image registration on the first motor shell image and the second motor shell image to register a rust spot area in the first motor shell image and a rust spot area in the second motor shell image and obtain an effective motor shell image; performing difference detection on the effective motor shell images before and after the salt spray test, extracting a new rust spot area based on the difference detection result; constructing a rust spot identification model according to the new rust spot area and the corresponding motor shell image; identifying the rust spot type of the new rust spot area based on the rust spot identification model, and calculating the area corresponding to the new rust spot area. The application solves the problem that manual motor shell rust spot identification detection leads to low detection efficiency and accuracy.

The utility model discloses a stainless steel pipe corrosion resistance detection lifting appliance which comprises a flat hook hung on a storage rod of a salt spray testing machine, an anti-skid rubber strip is fixed on the inner side of the flat hook, a connecting frame is fixed at the lower end of the flat hook, a hook-shaped frame is rotatably connected to the bottom of the connecting frame, and a horizontal knob is fixed on the hook-shaped frame. A first locking spring arranged on the surface of the hook-shaped frame in a sleeving mode is installed between the horizontal rotary knob and the connecting frame. The flat hook which can be stably installed on the object placing rod is used for hanging, the hook-shaped frame on the lower portion can rotate around the vertical axis and is supported by the first locking spring to achieve elastic self-locking, the clamping plate clamps and fixes a stainless steel pipe through the pipe clamp, and the pipe clamp can rotate around the connecting shaft and is provided with the second locking spring to achieve elastic self-locking. According to the device, the stainless steel pipe can be stably clamped and fixed, the stainless steel pipe can be closer to the actual installation condition to be kept horizontal or vertical without shaking, the hanging stability is prevented from being influenced by salt mist liquid drops and airflow, and therefore it is ensured that the test result is more scientific and more accurate.

The utility model relates to the technical field of temperature monitoring, in particular to a salt-fog-resistant temperature sensing detector suitable for an offshore wind turbine, which solves the problems in the background technology and comprises a detector base, a shell is mounted on the detector base and detachably connected with a protective cover, a circuit board is mounted in the shell, and the protective cover is detachably connected with the shell. A temperature sensing element is installed on the circuit board, a protective layer is arranged on the surface of the circuit board, an AB component silica gel layer is arranged on the protective layer except the surface of the temperature sensing element, a through hole is formed in the protective cover, a wire penetrating hole is formed in the detector base, and a wire harness is installed in the wire penetrating hole in a penetrating mode. A dispensing layer is arranged between the threading hole and the wire harness, and stainless steel hardware is arranged on the detector base and fixed to the fan cabin wall through bolts. According to the utility model, the detector can realize excellent corrosion resistance without failure in a 100-hour neutral salt spray test in an offshore high-salt-spray environment.

This invention discloses a water-based epoxy resin coating for 6005 aluminum alloy that prevents sagging and cracking, and its preparation method. The coating is a two-component system. Component A contains water-based epoxy resin emulsion, CTBN-modified toughening resin, composite anti-rust pigments, flake-shaped shielding fillers, and compounded thixotropic rheology agents, etc. Component B is a water-based amine curing agent. This coating can solve the sagging and cracking problems of existing coatings on 6005 aluminum alloy, achieving a coating adhesion grade of 0, a neutral salt spray test of ≥900h, and VOC ≤42g / L. It meets the stringent protection requirements of 6005 aluminum alloy and has excellent prospects for industrial application.

The invention discloses a rapid evaluation method for atmospheric corrosion resistance of weathering resistant steel and application thereof, the evaluation method comprises the following steps: S1, calculating an atmospheric corrosion resistance index I of the weathering resistant steel based on chemical components of the weathering resistant steel according to the following formula: I = 26.01 Cu + 3.88 Ni + 1.20 Cr + 1.49 Si + 17.28 P-7. 29 Cu * Ni-9. 10 Ni * P-33.39 (Cu) 2, and if I is greater than or equal to 6.2, entering subsequent test evaluation; s2, performing a neutral salt spray test on the sample meeting the step S1 for 72 hours, then calculating the salt spray corrosion rate, and if the salt spray corrosion rate is less than or equal to 1.16 g / (m < 2 >. H), judging that the sample is qualified; s3, if the weathering resistant steel is used in the high-humidity atmospheric environment, a periodic infiltration test needs to be carried out, and if the periodic infiltration corrosion rate is smaller than or equal to 1.958 g / (m < 2 >. H), it is judged that the weathering resistant steel is applicable; and S4, if the weathering resistant steel is used for a typical atmospheric environment with high temperature, high humidity and serious corrosion, an atmospheric exposure test needs to be performed for 12 months, and if the stable corrosion rate is smaller than or equal to 0.031 g / (m < 2 >. H), it is judged that the weathering resistant steel is applicable. The weather-resistant steel corrosion performance evaluation system is established by analyzing the atmospheric corrosion resistance index of the weather-resistant steel and the corrosion results of different materials in different typical environments.

The utility model discloses a kind of salt fog testing machine of high sealing property, it is related to field, including testing machine box, connecting hinge, sealing cover and control box, the connecting hinge is fixedly installed in the rear end of testing machine box, the sealing cover is movably installed in the outside of connecting hinge, the control box is fixedly installed in one side of testing machine box, the top of sealing cover is fixedly installed with agitating mechanism.The utility model has realized the dynamic, even spraying of salt fog in test box space, cooperate agitating mechanism and continuously rotate in the middle of two salt fog nozzles, effectively scatter, agitate the salt fog of spraying, prevent salt fog local gathering or settling too fast, further ensure the high uniformity of salt fog concentration and distribution in entire test space, significantly improve the coverage uniformity and result reliability of salt fog test, make the corrosion environment that test sample each part suffers more consistent, test data more accurate, so that salt fog testing machine promotes salt fog distribution uniformity and test accuracy.

The application discloses a tannin acid-based epoxy resin and anticorrosive paint and relates to the technical field of paint. The tannin acid and the epoxy resin are combined through chemical reaction to generate a novel tannin acid-based epoxy resin. The tannin acid-based epoxy resin retains the function of generating chelate with iron rust, meanwhile, multiple epoxy structures in the structure generate thermosetting high-density crosslinked polymer structures after curing with a curing agent, the compactness of the paint film is greatly improved, the further corrosion of the corrosion medium is hindered, and the long-term effectiveness of the low-surface-treatment anticorrosive paint is ensured. Experimental results show that the adhesion of the tannin acid-based epoxy resin to the anticorrosive paint and the base material exceeds 13 MPa, and the neutral salt spray test reaches 4500 hours.

The utility model discloses an automobile wire rod salt spray test box, and belongs to the technical field of automobile wire rod tests. The device mainly comprises a test box; sliding blocks are mounted on the guide rods in a sliding manner; a sealing block is installed on the side face of the supporting plate, and two sets of grooves are formed in the supporting plate; a sliding block is mounted on the sliding rail in a sliding manner; three clamping sets and a supporting ring are installed on the installation frame, a pressing ring is hinged to the supporting ring, butt joint plates are arranged at one end of the pressing ring and one end of the supporting ring, a notch is formed in the butt joint plate on the pressing ring, a rotating shaft is hinged to the butt joint plate on the supporting ring, and a fastener is connected to the rotating shaft. And a second clamping unit. According to the automobile wire rod salt spray test box, through the arrangement of the supporting plate, the sealing block, the guide rod, the sliding block, the groove, the sliding rail, the sliding block, the mounting frame, the supporting ring, the pressing ring, the butt joint plate and the rotating shaft, a tested automobile wire rod does not need to be manually taken out, and meanwhile the corrosion condition of the automobile wire cable is conveniently observed.

This invention provides a water-based paint composition that exhibits rust-preventive properties on hot-dip galvanized surfaces even in harsh environments such as salt spray tests. [Solution] An aqueous paint composition comprising the following components (A) to (C). (A) Ingredients: (meth)acrylic emulsion (B) Ingredients: Phosphate-based rust inhibitor (C) Component: Particles having silanol groups on their surface

The invention discloses a salt spray testing machine for MC nylon wheel quality inspection. The salt spray testing machine comprises a test chamber, a salt mist generator is fixedly installed in the test room, two nylon wheel placing assemblies are symmetrically arranged with the salt mist generator as the center, and each nylon wheel placing assembly comprises a first rotating disc and a second rotating disc which are oppositely arranged; a plurality of placing rods are detachably mounted between the rotary table I and the rotary table II through locking assemblies, and MC nylon wheels are arranged on the placing rods in a sleeving manner; the MC nylon wheels are arranged on the placing rods in a sleeving mode to conduct the salt spray experiment, the salt spray experiment is very convenient, a large number of MC nylon wheels can be rapidly taken and placed at a time, the intervals of the MC nylon wheels can be mutually adjusted, overlapping does not exist between the MC nylon wheels, the test dead angles are reduced, and the test result is more accurate.

The invention discloses a preparation method of a nitrogen-reinforced high-hardness corrosion-resistant 17-4ph material. The preparation method comprises the steps of mixing, injection molding, degreasing, nitrogen sintering and heat treatment. Through in-situ nitrogen solid solution strengthening, a strengthened martensite matrix structure is obtained. The relative density of the obtained material is larger than or equal to 97%, the Hrc hardness is larger than or equal to 46, the tensile strength is larger than or equal to 1500 MPa, the yield strength is larger than or equal to 1200 MPa, the ductility is larger than or equal to 5%, the neutral salt spray test corrosion resistance time is larger than or equal to 48 h, and the material is suitable for surgical robots and other high-end medical instruments.

The invention provides a processing method for a shell of an aerosol generating device and the aerosol generating device. The method comprises the steps that a containing part is arranged on the surface of the shell; dripping a curing medium into the accommodating part through an ink dripping process; and curing the curing medium. The curing medium is arranged in the containing part on the surface of the shell through the ink dripping technology, the curing layer is formed after the curing medium is cured, the curing layer located in the containing part is not prone to falling off and being abraded off, the surface is smooth and attractive, and therefore when a paper tape friction test, an alcohol friction test, a salt mist test, a water boiling test and other tests are conducted on the surface of the shell of the aerosol generating device, the testing efficiency is improved. And abnormal risks such as falling of a curing layer, wearing-through and base exposure are not easy to occur.

The invention provides a high-toughness corrosion-resistant Mg-Al-Zn magnesium alloy and a preparation method thereof, belongs to the technical field of magnesium alloy materials, and solves the technical problem that in the prior art, the strength, the corrosion resistance and the formability of a traditional magnesium alloy cannot be considered at the same time. The invention relates to a high-toughness corrosion-resistant Mg-Al-Zn series magnesium alloy. The magnesium alloy comprises the following components in percentage by weight: 4.00%-6.00% of Al, 0.80%-1.00% of Zn, 1.60%-2.00% of Sc, 0.15%-0.50% of Mn and the balance of Mg and inevitable impurities. According to the Mg-Al-Zn series magnesium alloy, the 7-day neutral salt spray test weightlessness corrosion rate is 3-5 mm / y, the yield strength is 170-180 MPa, the tensile strength is 320-330 MPa, the elongation is 9-11%, and the Mg-Al-Zn series magnesium alloy has the high toughness and corrosion resistance and can be suitable for serving parts with the high strength requirement under the severe environment condition.

The invention discloses an automobile body inner cavity electrophoresis test method which comprises the following steps: S1, manufacturing a test device which comprises a first pretreatment steel plate and a second pretreatment steel plate; s2, putting the test device into an electrophoresis tank, enabling the first pretreatment steel plate to be opposite to an anode electrode in the electrophoresis tank, and then carrying out an electrophoresis test; s3, the second pretreatment steel plate is taken out, and a circulating salt spray test is conducted; s4, treating after the test; s5, removing corrosives on the surface of the second pretreatment steel plate; and S6, measuring the height of a paint film on the surface of the second pretreatment steel plate. According to the electrophoresis test method for the inner cavity of the automobile body, the inner cavity anti-corrosion condition can be visually evaluated by using the inner cavity upper film sample plate to carry out the circulating salt mist experiment, circulating salt mist is introduced into the normal-temperature, normal-humidity, high-temperature and high-humidity environment compared with neutral salt mist, the circulating salt mist is closer to the atmospheric environment use condition, and it is ensured that the inner film electrophoresis anti-corrosion condition can be correctly evaluated.

The utility model discloses a full-automatic salt spray testing machine which comprises a rack, a box cover, a salt water preparation assembly, an electric appliance assembly, a salt water storage box, a spray tower, a saturation pressure barrel, a storage rack and a control panel, the rack is a rack body of which the middle part is provided with a cavity; a test cavity is arranged in the cavity, and a horizontally arranged storage rack is arranged in the test cavity; a heating pipe is arranged in the test cavity, a saline water storage tank is also arranged in the test cavity, and the upper end of the saline water storage tank is connected with a vertically arranged spray tower; and the saline water preparation assembly is connected with a saline water storage box below through a pipeline. The full-automatic salt spray testing machine disclosed by the utility model is simple and reasonable in structure and stable and firm in operation; the intelligent automatic salt spray test box can automatically prepare and add test salt water, the problem that an existing salt spray test box cannot be intelligently and automatically operated and run is solved, the salt spray test box is pulled into an automatic intelligent equipment rank, and the purposes of low running cost and high test efficiency are achieved.

The invention belongs to the technical field of aluminum alloy production and processing, particularly relates to a production process of a high-performance boundary beam profile for a 6061 aluminum alloy automobile, and aims to solve the problems of serious magnesium element burning loss, unstable hydrogen content control, coarse structure, extrusion deformation, large mechanical property fluctuation, insufficient corrosion resistance and the like in the traditional process. The high requirements of light weight of the new energy automobile on the strength, toughness, forming precision and corrosion resistance of the edge beam are met. The process sequentially comprises the steps of raw material pretreatment, smelting refining, casting passivation, stepped annealing and shot blasting, extrusion forming, segmented air-blast quenching, double-stage aging and finished product treatment. The tensile strength of the final profile is larger than or equal to 260 MPa, the yield strength is larger than or equal to 240 MPa, the elongation is larger than or equal to 12%, the neutral salt spray test is larger than or equal to 500 h, the comprehensive performance is excellent, and the profile is suitable for automobile edge beam key force bearing components.

The utility model discloses a temperature and humidity control system for whole salt spray test, mainly solves the problem of slow heating rate, big temperature fluctuation and poor uniformity in the implementation process of the existing whole salt spray test. The test bin is provided with: boiler and inlet and return water pipeline, side heating sheet, ground heating pipeline, hot air blower and its inlet and return air pipeline, humidifier and its humidification pipeline, mist exhaust fan and its mist exhaust pipeline, various sensors. The both ends of the heating sheet and ground heating pipeline are connected with the inlet and return water pipeline of the boiler respectively, and the heating of the test bin is completed together, the both ends of the inlet and return air pipeline are connected with the heating air blower and the test bin respectively to improve the temperature of the test bin quickly, the humidifier is connected to the upper end of the test bin through the humidification pipeline to humidify the test before spraying, and various sensors provide temperature and humidity data of the experimental process in real time. The utility model can improve the uniformity and heating efficiency of the heating space, effectively guarantee the temperature stability and uniformity of the test bin, and can be used for whole salt spray test.

This invention discloses a process and coating structure for rare earth modified trivalent chromium pearl chromium plating on zinc alloys. The process includes sequentially preparing a cyanide-free copper plating layer, a cyanide-free copper-zinc alloy plating layer, a high-corrosion-resistant nickel-phosphorus alloy plating layer, a bright nickel-cobalt alloy plating layer, a pearl nickel plating layer, a rare earth modified trivalent chromium pearl chromium plating layer, and an anti-discoloration protective film on a zinc alloy substrate. The rare earth modified trivalent chromium pearl chromium plating process is as follows: chromium chloride hexahydrate 90-130 g / L, potassium chloride 90-160 g / L, ammonium chloride 90-160 g / L, ammonium bromide 18-28 g / L, ammonium formate 40-60 g / L, boric acid 45-65 g / L, rare earth additives 8-12 mL / L, leveling agent 2-4 mL / L, accelerator 1-3 mL / L, plating bath pH 2.5-3.2, plating bath temperature 25-35℃, and cathode current density 8-16 A / dm². The rare earth additives have a synergistic effect on improving the performance of trivalent chromium plating solution. No rust was observed on the surface of the plated parts after undergoing a neutral salt spray test for 132 hours according to GB / T 10125–2021 standard.

The application provides a trivalent chromium passivation solution for maintaining the original color of aluminum alloy, which is prepared from basic chromium sulfate, zirconium salt, fluoride salt, corrosion inhibitor, organic acid complexing agent and water. The application also provides a preparation method of the trivalent chromium passivation solution for maintaining the original color of aluminum alloy, which comprises the following steps: heating water to 75-85 DEG C, then adding basic chromium sulfate, stirring while adding until completely dissolved, then adding zirconium salt, fluoride salt, corrosion inhibitor, organic acid complexing agent, silane coupling agent, water-soluble resin and nano silicon dioxide in sequence, and stirring for 1-2 h; using a pH regulator to adjust the pH value to 3.8-4.2, and the trivalent chromium passivation solution for maintaining the original color of aluminum alloy is obtained. The application also provides a passivation method for maintaining the original color of aluminum alloy. The application has the advantages of saving raw material cost, simple preparation method, and the like, and the passivated aluminum alloy part has a dense and uniform passivation film, the appearance color is maintained as the original color, the corrosion resistance exceeds 300 hours after neutral salt spray test, and the corrosion resistance is good.

This invention belongs to the field of metal rust prevention technology, specifically relating to an environmentally friendly water-based rust-preventive composition, its preparation method, and its application. The composition comprises, by weight, 3-8 parts of a first triazine compound, 1-5 parts of a second triazine compound, 10-20 parts of 2-amino-2-methyl-1,3-propanediol, 2-5 parts of dipropylene glycol monomethyl ether, and 65-85 parts of water. The first triazine compound is a triazine compound having substituents containing hydrophobic segments and at least two aminocarboxylic acid substituents, and the second triazine compound is a triazine compound having thiol substituents. This invention forms a dual-anchored protective film on the metal surface through the two triazine compounds, exhibiting excellent salt spray resistance, damp heat resistance, and film density. It achieves a salt spray test duration of 72 hours, a damp heat test duration of 960 hours, and an adhesion rating of 0. Furthermore, it is free of nitrites, phosphates, and heavy metals. The preparation method is simple, suitable for industrial production, and can be widely applied to metal rust prevention in machinery manufacturing, automotive parts, and other fields.

The utility model discloses a temperature and humidity monitoring composite probe for a high-temperature and high-humidity salt-fog environment, which mainly solves the problem that the existing temperature and humidity sensor probe cannot be used for a long time in the high-temperature and high-humidity salt-fog environment, and comprises a wire locking hoop, a shell, a connecting base, a temperature measuring element, a humidity measuring element, a shell protection cover and a filter screen, the fixed ends of the temperature measuring element and the humidity measuring element are installed on the connecting base, one end of the connecting base is in threaded connection with one end of the shell, and the other end is provided with the shell protection cover. The device is simple and small in structure and convenient to install and use, is applied to a high-temperature and high-humidity salt spray test environment, and is used for long-time high-reliability monitoring and detection of temperature and humidity.

This application discloses a simulation testing device for shipborne equipment. The simulation testing device includes a test chamber, a six-degree-of-freedom platform, a salt spray test chamber, and a light simulation unit. The test chamber is mounted on the six-degree-of-freedom platform. The salt spray test chamber is connected to the test chamber and delivers the generated salt spray into the test chamber. The light simulation unit is located inside the test chamber. This application can simulate the low-frequency inertial impact of ship rolling on electronic and electrical equipment, thereby increasing the reliability of the simulation experiment. Furthermore, by adding a light simulation unit along with the salt spray test chamber, the coupling effect of light and salt spray experienced by the ship during actual navigation can be simulated, further increasing the reliability of the simulation experiment.

The utility model relates to the technical field of gun drill brushing structures, in particular to a disc flat brush quick connecting rod structure for a handheld gun drill, which comprises a main body rod piece and is characterized in that the diameter of the main body rod piece is 150 + / -2mm, the main body rod piece comprises a hexagonal rod, one end of the hexagonal rod is connected with a main body sleeve, one end of the main body sleeve is connected with a sliding sleeve, and the other end of the main body sleeve is connected with a handle. A steel wire is arranged on one side of the interior of the sliding sleeve, an elastic limiting mechanism is arranged on one side of the steel wire, a magnetic sleeve is arranged on one side of the interior of the sliding sleeve, and magnetic steel is arranged in the magnetic sleeve. Rapid replacement is achieved through magnetic attraction pre-positioning and elastic secondary locking, and a tool hole is automatically centered through magnetic attraction force guiding; after the 65Mn steel spring is subjected to a fatigue test, the elasticity attenuation is less than 5%, and 8N pressing force is generated to complete mechanical locking; triple protection of electrophoretic paint (20 microns), chromium plating (15 microns) and anodic oxidation (15 microns) passes a neutral salt spray test for 1000 hours; the N20 magnetic steel enables the vibration of the hand to be reduced to 0.8 m / s < 2 >; the diamond-shaped surface enables the holding force to be increased to 120 N (70 N compared with a smooth surface).

The application discloses a wind turbine generator set converter detection device, relates to the technical field of converter corrosion detection, and comprises a salt spray test mechanism, further comprises: a salt mist deposition precision control mechanism, which is installed in the salt spray test mechanism and comprises a multidirectional deposition collection mechanism and a liquid drop mis-collection control mechanism; the liquid drop mis-collection control mechanism comprises a scraper, one side of the scraper is provided with a flow guide groove; the application heats the element by installing a running simulation mechanism, so that the temperature of the element is consistent with the temperature generated during running, thereby simulating the temperature environment of the element during actual running, fitting the running environment of the circuit board, and making the detection result more accurate; the application sets a accumulated water treatment mechanism, so that the circuit board is inclined and vibrates, thereby promoting the accumulated water on the detection piece to disperse and separate from the circuit board, and effectively preventing the corrosion uneven phenomenon caused by the accumulated water of the circuit board.

The invention discloses a salt spray test universal tool, and relates to the technical field of test tools, the salt spray test universal tool comprises a tool main body and a support rod, the tool main body is an integrally formed insulating bakelite plate structure, the support rod is inserted into the tool main body, two sides of the tool main body are provided with height adjusting holes, and the surface of the tool main body is carved with angle adjusting lines. A drainage ditch is formed in the side face, through the multiple height adjusting holes distributed in the height direction of the tool body, the installation position can be flexibly selected according to sheet samples of different lengths, and height precise adaptation is achieved; the height adjusting hole at the highest position is used as a reference line, and is matched with calibrated three-gear angle adjusting lines of 10 degrees, 20 degrees and 30 degrees, so that the placement requirement that a sample piece and a vertical plane form an included angle of 10-30 degrees can be accurately met, the test requirements of different angles in the same batch are met, and the universality is high.

The invention discloses a marine atmosphere and coast environment acceleration simulation verification test device and method.The marine atmosphere and coast environment acceleration simulation verification test device comprises a test water tank, a water supply water tank and a control module, seawater is contained in the water supply water tank, and the test water tank comprises an equipment room located on the lower portion and a test room located on the upper portion; a test rack is mounted in the test room, the test room is internally divided into a peripheral infiltration test area positioned at the lower part and a spraying and spraying test area positioned at the upper part, and a spraying mechanism and a spraying mechanism are arranged in the spraying and spraying test area; a magnetic pump is arranged in the equipment chamber, the input end of the magnetic pump is connected with the water supply tank through a pipeline, and the output end of the magnetic pump is connected with the spraying mechanism and the spraying mechanism of the peripheral infiltration test area and the spraying and spraying test area through pipelines. According to the invention, ocean atmosphere and coast environment corrosion conditions can be simulated more truly in different areas such as inland and the like, and the defect that a traditional salt spray test cannot equivalently simulate an ocean atmosphere corrosion environment is overcome.

The invention discloses a gas pipeline corrosion resistance detection method and device and a medium, and relates to the technical field of pipeline corrosion resistance detection.The method comprises the following steps that the temperature of zinc liquid during hot-dip galvanizing of a gas pipeline is obtained, galvanizing temperature data is obtained, and sampling inspection samples are screened according to the galvanizing temperature data; collecting an image of the sampling inspection sample to obtain initial image data, and carrying out a corrosion resistance test; acquiring an image of the tested sampling inspection sample to obtain test image data, and performing image corrosion analysis processing to obtain corrosion image data; the corrosion area of the gas pipeline is obtained, and a pipeline corrosion resistance detection result is obtained; the method is used for solving the problems that when an existing pipeline corrosion resistance detection technology is used for detecting the white rust area of a salt spray test of a gas pipeline, a threshold value cannot be dynamically set according to the surface characteristics of the gas pipeline, white rust and a background in an image cannot be accurately separated, the obtained white rust area is not accurate enough, and the detection accuracy is poor. Meanwhile, the detection rate of unqualified products is relatively low.

The utility model discloses a salt spray testing machine convenient to add raw materials, which comprises a base, the top of the base is fixedly provided with a salt spray testing machine body, one side of the back of the salt spray testing machine body is fixedly provided with an adjusting mechanism, and the top of the adjusting mechanism is fixedly provided with a top cover. By the adoption of the structure, the spraying mechanism is matched with the supply mechanism, salt mist can be evenly sprayed and supplied, liquid in the water tank is conveyed to the spraying frame through the hose and the rotary connector by the water pump and converted into salt mist through the spraying head to be sprayed into the test box, and on the aspect of spraying uniformity control, the second motor drives the gear to rotate, and the salt mist is sprayed into the test box. The gear drives the gear ring meshed with the gear, then the sliding ring and the connecting ring connected with the gear ring drive the multiple spraying frames to rotate, the spraying frames rotate to enable the spraying heads to spray salt mist at different angles, the coverage range is enlarged, the distribution uniformity of the salt mist is improved, and the accuracy and reliability of salt mist test results are guaranteed.