175 results about "Saline mist" patented technology

The invention relates to a multi-purpose salt fog test box belonging to the technical field of material analysis equipment. The multi-purpose salt fog test box comprises a main box body (1), a box cover (2), an observation cover (3), a salt water box (5) and a control device panel (4), wherein the main box body (1) is provided with a sealed water tank and internally comprises a salt fog collector(6-1), an ultrasonic salt fog generating device (8), a conduit (8-1), a heating and temperature warning device (9), a temperature sensor (10), a humidity sensor (11), support blocks (12-1), (13-1) and (14-1), a diaphragm (13), a sealing diaphragm (14) and a sample stage combination shelf (12); the external accessories of the test box comprise a box cover handle (2-1), a salt water box cover (5-1), a salt fog metering device (6), waste liquid drain pipes (5-2) and (8-2), a pipe (14-2) and a hinge part (7). The multi-purpose salt fog test box adopts the principle of the ultrasonic spray, omits the air compressor in the traditional salt fog test box, simplifies the test box and can be used for corrosion tests under constant-temperature-and-humidity conditions, alternating wetting and drying conditions and other conditions.

The invention discloses quake-proof and corrosion-resistant H-shaped steel with high performance and a processing method thereof. The H-shaped steel comprises the following components by weight percent: 0.10-0.15wt% of C, 0.25-0.50wt% of Si, 1.00-1.35wt% of Mn, 0.030-0.050wt% of Ti, 0.10-0.20wt% of Cr, 0.30-0.50wt% of Cu, 0.0020-0.0040wt% of B, no more than 0.020wt% of S, no more than 0.035wt% of P, and the balance of Fe and inevitable impurities. The H-shaped steel is processed into the H-shaped steel of which the height, the width, the web thickness and the physical dimension of a flange thickness section respectively are (400-294mm)*(200-175mm)*(7-8mm)*(11-13mm) by the following procedures: heating, descaling, performing, selective cooling of the flange outer side, finish rolling, R-angle selective cooling, natural cooling, online detection, and straightening. The yield strength Rel is 420-480 MPa; the tensile strength Rm is 580-650MPa, the elongation rate A> is 24.0%, the V-shaped ballistic work Akv is greater than or equal to 70J, the salt-spray corrosion rate of 0.5% NaCl is smaller than 0.50g.m<-2>.h<-1>. The produced product is high in strength, excellent in anti-seismic property, corrosion-resistant, good in weather fastness and excellent in overall performance. The method disclosed by the invention has the advantages of being low in production cost, high in efficiency, strong in operability and generalization performance and the like.

The invention belongs to a helicopter coating laboratory acceleration test method, and discloses a laboratory acceleration test method for a ship-based helicopter coating under a marine atmospheric condition. The method comprises the following steps: S1, sequentially performing a damp and hot exposure test, an ultraviolet irradiation test, a low-temperature vibration test, a neutral salt spray test and an acidic salt spray test on the ship-based helicopter coating; S2, circularly executing the S1 according to a preset period; S3, after the S2 is completed, sequentially performing a mold test and a sand dust test on the ship-based helicopter coating; and S4, after the S3 is completed, performing environmental adaptability assessment on the ship-based helicopter coating according to the characteristics of the ship-based helicopter coating, and forming a laboratory acceleration test method by adding a helicopter vibration test and an acidic salt spray test, so that the coating of the ship-based helicopter is more accurately assessed.

The invention discloses an alkaline chloride zinking primer, wherein the primer comprises following components based on mass percent: 9.6% to 14.5% sodium hydroxide, 5.0% to 7.0% potassium chloride, 0.6% to 0.9% zinc oxide, 0.35% to 0.45% DPE-3 adjuvant, 0.35% to 0.45% ZB-80 lustre-coating agent and 76% to 84% water. The preparation method of the alkaline chloride zinking primer is provided. The invention has advantages that the plating layer has high combination ratio, high depositing speed, bright and fined plated products without brittleness, coarse skin and color change when baking temperature is at 250 deg. C, great anti-impurity capacity, without fogging and bubbling phenomena. The salt spray test uses 150 hours to 200 hours with low cost. The invention saves energy and is easy to processes waste.

A salt fog physiotherapy center is composed of the mineral salt solution and salt fog vapor room, and features that the humidity, temp and the granularity of atomized salt solution are controlled for playing the full physiotherapeutic function.

The invention relates to a quick evaluation test method of anti-corrosion performance of a tin-plated board. The quick evaluation test method is characterized by comprising the following steps: 1) selecting a tin-plated board being 1.1 g/m<2> in tin layer thickness and 4 mg/m<2> in passivated film thickness and pre-treating the tin-plated board; 2) placing the test sample in a salt fog corrosion test box, wherein the test sample is hanged on a hanging rod in the box body; 3) selecting a NaCl solution being 2% in mass concentration as a basic corrosion medium with a NaHSO3 solution in a certain concentration matched therewith, successively adjusting six dimensions of four test parameters comprising corrosion medium concentration, corrosion medium settlement quantity, temperature and test period to carry out a corrosion test; 4) when the corrosion test is finished, taking out the test sample and washing the sample through deionized water at 20-30 DEG C for 30-60 s, and air-drying the sample with cold air; and 5) comparing the test sample with six test result legends under the six dimensions, and evaluating and recording a result according to two characteristic parameters comprising corrosion area and corrosion point diameter to achieve quantitative evaluation of the anti-corrosion performance of the tin-plated board.

The invention discloses a temperature, humidity and salt fog comprehensive test chamber which comprises a salt fog test machine and a constant-temperature and constant-humidity system. The salt fog test machine comprises a salt fog box, salt fog spray towers, hang rods, a V-shaped slotted storage rack and salt water collectors are arranged in the salt fog box, and a salt fog box cover is arranged on the top of the salt fog box; a control box is arranged on the right side of the salt fog box and is connected with the salt fog spray towers by a salt solution delivery pipeline; the constant-temperature and constant-humidity system comprises a constant-temperature and constant-humidity box, a temperature adjusting system and a humidifying system, the temperature adjusting system comprises a refrigerating system and a heating system, the refrigerating system comprises a condenser, an evaporator, a compressor and a refrigerant liquid storage tank which are connected with one another, and the heating system comprises a heating pipe. The temperature, humidity and salt fog comprehensive test chamber has the advantages that the temperature, humidity and salt fog comprehensive test chamber is provided with the constant-temperature and constant-humidity system, accordingly, complicated corrosion environments can be simulated by means of unified adjustment and control, corrosion tests under comprehensive temperature and humidity conditions can be completed, and the temperature, humidity and salt fog comprehensive test chamber is worthy of being energetically popularized.

The invention provides an in-situ test detection device and method for simulating corrosion and aging of a multi-factor atmospheric environment material. The in-situ test detection device is combinedwith technologies such as salt spray, electric heating, environment temperature and humidity control and ultraviolet radiation control. The method comprises: putting a metal material on a silicone rubber heating sheet in the experimental device, closing an optical path channel, heating the heating stage to a predetermined temperature by electrifying and heating the silicone rubber heating sheet, and sensing and controlling the temperature in real time through a temperature sensor; meanwhile, using the atmosphere temperature and humidity control device for realizing preset temperature and humidity in a test environment; quantitatively spraying salt mist to a sample at a fixed frequency in the test process, and an ultraviolet lamp irradiating the sample according to set radiation intensity and radiation frequency, so that the control simulation of five environmental factors including environmental temperature and humidity, sample temperature, salt mist and radiation is realized at the same time, the corrosion state of the sample in various atmospheric environments is reproduced, and real-time monitoring and detection conditions are provided.

The invention provides epoxy glass flake anticorrosive paint which is characterized by comprising the following components in parts by weight: 95%-99.8% of a component A and 0.2%-5% of a component B;the component A comprises the following components in parts by weight: 8-10 parts of epoxy resin, 4.2-4.5 parts of glass flakes, 1-3 parts of a pigment, 0.5-1 part of a dispersing agent, 1-1.2 parts of a silane coupling agent, 0.1-0.2 part of a defoaming agent, 1-1.5 parts of an assistant and 1-2 parts of a solvent, wherein the component B comprises the following components in parts by weight: 10-30 parts of graphene slurry, 2-4 parts of nano calcium carbonate, 1-2 parts of coconut diethanolamide and 1-2 parts of aluminum dihydrogen tripolyphosphate; the salt spray test can reach more than 5000h, and the epoxy glass flake anticorrosive paint has a good electrostatic conduction effect, has the characteristics of strong adhesive force and high mechanical strength of the same type of anti-corrosion paint, and is anticorrosive paint with excellent performance.

The invention discloses environment test equipment for cooperatively controlling salt mist concentration and relative humidity, which comprises a dry salt mist generation system, an air conditioning system, a mixing chamber, a test chamber and an electric control cabinet. The environment test equipment is adopted for obtaining salt mist concentration relational expression and relative humidity relational expression among environment parameters in a test room, dry salt mist environment parameters in a dry salt mist generation system and environment parameters of conditioning air in an air conditioning system base on the salt content and water content conservation principle before and after mixing, and after determining the environment test parameters required in the test room, obtaining a temperature parameter and a relative humidity parameter which need to be set in the dry salt mist generation system and a temperature parameter and a relative humidity parameter which need to be set in the air conditioning system through the salt mist concentration relational expression and the relative humidity relational expression; meanwhile, the equipment can adjust the dry salt mist generation system and the air conditioning system through deviation feedback of monitoring data, and dynamic balance of the laboratory environment is achieved.

The invention belongs to surface treatment technology, and relates to an anticorrosion method for stainless steel weld seams or bending areas. It is characterized in that the anti-corrosion steps are as follows: determine the intergranular corrosion area A of the material; perform mechanical grinding on the intergranular corrosion area A of the material; grind the intergranular corrosion area A of the material; carry out pickling and passivation treatment on the parts. The invention proposes an anti-corrosion method for stainless steel welds or bending areas, which greatly increases the anti-corrosion ability of 1Cr18Ni9Ti stainless steel in salt spray and hot and humid environments, avoids intergranular corrosion of parts again, and improves the use of parts life.

A multifunctional salt spray test device effectively solves the problems of incomplete salt spray coverage, non-uniform spraying, influence on test data and the like, and comprises a cabinet body, a cabinet door hinged to the cabinet body, a support frame fixed in the cabinet body, a rotating shaft rotationally connected in the cabinet body, and two arc-shaped pipes fixed at the left end of the rotating shaft, the two arc-shaped pipes are vertically symmetrical about the center of the rotating shaft, the supporting frame is located between the two arc-shaped pipes, a hollow pipe is arranged inthe rotating shaft, arc-shaped channels communicated with the hollow pipe are formed in the arc-shaped pipes, a plurality of first through holes facing the supporting frame are evenly distributed inthe arc-shaped pipes, and the first through holes are communicated with the arc-shaped channels. An atomizer and a box body are fixed to the right end of the cabinet body, the right end of the rotating shaft is rotationally connected with the box body, a cavity is formed in the box body, a plurality of second through holes communicated with the cavity are formed in the rotating shaft, a hose communicated with the cavity is arranged on the atomizer, the structure is ingenious, operation is easy, and the test effect is good.

The invention discloses a salt spray testing machine, and belongs to the field of salt spray tests. The salt spray testing machine comprises: a detachable box cover arranged above a box body, whereina discharge port is formed in the side wall of an objective table, and a box door is arranged on the discharge port; a workbench which is horizontally and fixedly mounted in the box body, an opening is formed in the upper portion of the workbench, and the workbench, the box cover and the box body form a working cavity; an inner cavity which is arranged below the workbench, wherein the inner cavityis communicated with the workbench through the opening, and the inner cavity is communicated with the workbench through the discharge port; a salt mist spraying system which is mounted on the workbench; the objective table which is arranged above the inner cavity; an air inlet channel, wherein one end of the air inlet channel extends out of the box body and is provided with an air blower, and theother end of the air inlet channel is communicated with the inner cavity; and an air outlet channel, wherein one end of the air outlet channel is extended out of the box body. Compared with the priorart, the salt spray testing machine has the advantages that salt spray can be discharged after testing, and operators are prevented from making contact with the salt spray.

The invention relates to 5G communication equipment with a long service life. The equipment comprises a bottom plate, a supporting tube and an antenna, the bottom plate is horizontally arranged, the supporting tube is perpendicular to the bottom plate, the antenna is cylindrical and is coaxial with the supporting tube; the diameter of the antenna is smaller than the inner diameter of the supporting tube; the bottom end of the supporting pipe and the top of the bottom plate are sealed and fixedly connected, the antenna is arranged on one side, far away from the bottom plate, of the supporting tube; an auxiliary mechanism and a maintenance mechanism are arranged on the supporting tube; the auxiliary mechanism comprises a moving disc, a suction pump, a water pipe, a sealing assembly and a transmission assembly. The sealing assembly comprises a sealing disc, a moving plate, two auxiliary rods and two reset units. The 5G communication equipment with the long service life achieves the salt mist cleaning function through the auxiliary mechanism, the equipment is prevented from being corroded by salt mist, the service life of the equipment is prolonged, and in addition, the maintenance convenience is improved through the maintenance mechanism.

The invention relates to a wheel bolt electroplating process. The process comprises the following process steps of thermal debinding, primary water washing, pre-plating, secondary water washing, electroplating, third water washing, glaring, fourth water washing, passivation, fifth water washing, hot water washing and drying. An electroplated product obtained after shot blasting has the same surface quality and salt fog testing as an electroplated product after acid pickling, a shot blasting product does not need acid pickling, the hydrogen embrittlement risk is reduced, shot blasting does notonly replaces one acid pickling procedure, neutralization and hydrogen removal after acid pickling are not needed, in addition, the production cost can be consumed by waste acid treatment caused by acid pickling, shot blasting is free of the problem, the product quality is improved through process improvement, and in addition, the production cost is reduced.

The invention discloses a detection device for detecting corrosion resistance of a shell. The device specifically comprises a host, a bottom plate, a control box, a mixing box and a plug-in probe, andthe host is installed on one side of the top of the bottom plate. A control box is fixed to the other side of the top of the bottom plate; a box cover is mounted at the top end of the host; a handleis mounted in the middle of the bottom of one end of the box cover; liquid storage tanks are arranged on the two sides of the bottom end of the interior of the host correspondingly. Themixing box is arranged in the middle of the bottom end in the host; a water pump is mounted at the bottom of the interior of each liquid storage tank; and water pipes are fixed at the output ends of the water pump.According to the detection device for detecting the corrosion resistance of the shell, adetection bin and acontrast bin are arranged, salt mist and humid and hot air are introduced into the detection bin, and humid and hot air is introduced into the contrast bin, so that the corrosion condition of the shell is conveniently analyzed and checked, the interference of external environment air on detection is eliminated, and obtained data is more reliable and effective.

The invention relates to water-based metal rust-proof varnish and a preparation method thereof, and belongs to the field of coating. The water-based metal rust-proof varnish comprises the following components in parts by weight: 5 to 15 parts of deionized water, 70 to 80 parts of water-based polymer emulsion, 1 to 2 parts of a salt-mist-resistant agent, 0.5 to 1 part of a corrosion inhibitor, 0.1 to 0.3 part of a wetting and leveling agent, 2 to 3 parts of wax emulsion, 4 to 6 parts of alcohol ester-12, 0.2 to 0.4 part of a pH regulator and 0.2 to 0.5 part of an associative thickener. The water-based metal rust-proof varnish can form a paint film quickly at room temperature, has high transparency, light color, high glossiness and good plumpness, is smooth and fine, and perfectly takes on the metal effect of a substrate. High-performance materials are selected, so that the paint film has strong ultraviolet-resistant ability, good adhesive force, high weather resistance, yellowing resistance, water tolerance, scraping resistance, high hardness and long rust-proof time, and is bright and clean as new after being washed by rain. The product is non-toxic and odorless, does not contain components which are harmful to a human body and the environment, and is real environment-friendly water-based corrosion-resistant coating. The water-based metal rust-proof varnish is convenient to construct and high in self-drying speed, improves the efficiency and reduces the energy.

The invention relates to the technical field of material testing devices, in particular to a semi-open type in-situ salt spray corrosion device suitable for optical measurement mechanics. The device comprises a temperature adjusting module, a salt spray generating module and a semi-open type corrosion cavity, and can generate salt spray through the salt spray generating module and control the flowrate and concentration of the salt spray. The temperature adjusting module adjusts the temperature of salt mist generated by the salt mist generating module, and the generated salt mist passes through the semi-open corrosion cavity to conduct a salt mist corrosion experiment on one side of a sample, so a salt mist environment with the adjustable temperature and flow speed is provided for the sample, and the semi-open corrosion cavity is adopted, so salt mist or liquid drops condensed by the salt mist can be prevented from interfering with optical measurement mechanical methods such as digitalimage related technologies while the salt mist is prevented, the surface of the sample is allowed to be observed in real time in the mechanical test process, and the information data such as the surface appearance, displacement and deformation of the sample is collected.

The invention relates to a test device and a test method for simulating atmospheric corrosion. The test device comprises a test box, an illumination module, a salt spray module for providing salt spray for the test box and a temperature and humidity module for adjusting the temperature and humidity in the test box, wherein a sample rack is arranged in the test box, and the illumination module forsimulating the solar illumination is arranged at the upper part of the test box and is positioned in an upper space of the sample rack. According to the present invention, a stable test environment isconducive to being provided, the sunlight irradiation can be simulated while atmospheric rainfall is simulated, the service environment of a sample under different working conditions can be simulated, the test conditions of the test device can be monitored and controlled effectively, and the comprehensive analysis to the sample is conducive.

The invention discloses a marine structure model segmented pressurizing type constant temperature salt fog accelerated erosion test system. The system comprises a segmented sealed pressure test box (1), wherein each segment of the segmented sealed pressure test box (1) is provided with a salt fog spray module (2), a pressurizing module (3) and a constant temperature module (4); sliding rails (15) are symmetrically and vertically arranged on inner side walls of the segmented sealed pressure test box (1); multiple layering platforms (16) are arranged in the sliding rails (15); tensioned spring wires (17) are arranged in the layering platforms (16); and a test piece (18) penetrates through the spring wires (17) and then is arranged at the bottom of the segmented sealed pressure test box (1). According to the marine structure model segmented pressurizing type constant temperature salt fog accelerated erosion test system provided by the invention, test pieces meeting saline ion erosion conditions of prototype structures in different periods can be effectively prepared, so that the test pieces adopted in durability research of the marine structure meets the actual situations.