138 results about "Galvanic corrosion" patented technology

The invention discloses a high-corrosion-resistance magnesium alloy and a preparation method and application thereof, and belongs to the technical field of magnesium alloys, the high-corrosion-resistance magnesium alloy is based on multi-element rare earth microalloying and dispersed Mg17Al12 phase synergistic regulation, in the high-corrosion-resistance magnesium alloy, a fine dispersed Mg17Al12 second phase is evenly distributed in a whole magnesium matrix, and the high-corrosion-resistance magnesium alloy has the advantages that the high-corrosion-resistance magnesium alloy is obtained; the magnesium alloy has the beneficial effects that the magnesium alloy is good in corrosion resistance, uniform corrosion of a magnesium matrix is promoted, and the micro-galvanic corrosion effect between the Mg17Al12 phase and the magnesium matrix is greatly weakened, so that serious local corrosion of the magnesium alloy in a traditional AZ91 alloy is converted into a uniform corrosion behavior, and the corrosion resistance of the magnesium alloy is greatly improved.

A heavy-duty surface mount post system includes a post base with a mounting member and a post designed to slide over the tube. Shims are mounted between the mounting member and the post to create a tighter fit and to resist galvanic corrosion when the base and post are made of different materials, such as steel and aluminum. Optional decorative skirts provide additional stability and aesthetic appeal. The system is ideal for fencing installations on concrete or other solid surfaces, accommodating a range of tolerances while simplifying assembly.

The invention relates to a low-cost high-strength corrosion-resistant magnesium alloy and a preparation method thereof. The magnesium alloy comprises the following components in percentage by mass: 6-11% of Al, 0.4-0.6% of Zn, 0.2-0.6% of Mn, 0.2-0.4% of Y, 0.2-0.6% of Ca and the balance of Mg and inevitable impurities. A small amount of Ca and Y elements are added, on one hand, an alpha-Mg matrix structure can be refined, beta phase distribution is more uniform, and the mechanical property is improved; and on the other hand, the solid solubility of the alloy element Y in an alpha-Mg matrix can be improved by adding the Ca element, the compactness of a surface oxidation film and a corrosion product film is promoted, compared with other rare earth elements, the potential difference between Al-Ca and Al-Y phases formed by Ca, Y and Al and the magnesium matrix is smaller, micro galvanic corrosion is smaller, and the corrosion resistance of the alloy is remarkably improved.

This invention provides an engine valve and a method for manufacturing the same, which can suppress galvanic corrosion even when dissimilar metals are joined, and which exhibits excellent wear resistance and corrosion resistance, for use in engines that use CNG, LPG, or alcohol as fuel. [Solution] The engine valve 10 of the present invention is a joint member in which a shaft portion 14 made of martensitic heat-resistant steel SUH11 and a umbrella portion 12 made of austenitic heat-resistant steel SUH35 are joined. A nitride layer is formed only on the surface of the base material on the shaft portion 14 side from the joint portion 13 between the shaft portion 14 and the umbrella portion 12, leaving the surface of the base material exposed on the umbrella portion 12 side from the joint portion 13.

The invention aims to provide an insulating composite ceramic coating with high impact resistance and a preparation method of the insulating composite ceramic coating. The coating is based on nano-agglomerated AlO-3 wt.% TiO composite powder; a double-stage atmospheric plasma spraying process is adopted to directly prepare on a stainless steel substrate under the condition that a metal bonding layer is not prepared in advance: in the first stage, a strong bonding bottom layer is formed at relatively high power, and in the second stage, a nano-structure working layer is constructed at optimized power. In addition, a functional additive accounting for 0.5-3% of the total mass of the powder is externally doped to carry out laser remelting treatment on the coating so as to further densify the coating. Through component compounding and process gradient design, the contradiction that high insulativity and high toughness of the coating are difficult to consider at the same time is successfully solved, and the prepared coating has high hardness, high fracture toughness, high bonding strength and excellent impact resistance and insulation performance; and a long-acting and reliable solution is provided for galvanic corrosion protection of dissimilar metal connecting parts in the marine environment.

The application relates to the technical field of electrical connection equipment, and discloses a high-current small bus plug-in box rotary plug, which is used to solve the problems that the structure of key conductive components is single, the setting space is cramped, the conductive temperature rises fast, and the components are prone to aging in the prior art. The application is characterized in that the space of the regular octagonal flame-retardant PC shell and the insulating partition plate is optimized, the T2 oxygen-free copper Z-shaped large-section pin array is symmetrically arranged, the uniform contact pressure guaranteed by the spring assembly is matched, the conductive cross-sectional area is 2-3 times higher than that of the traditional reed structure, the galvanic corrosion of dissimilar metals is effectively avoided, the current-carrying capacity and the current transmission stability are greatly improved, the multidirectional heat exchange channels formed by the regular octagonal included angle, the pin array bending gap and the internal cavity are combined, the separation and heat dissipation of the insulating partition plate are combined, the cold and hot air efficient convection is realized, and the temperature rise of the key components is significantly reduced.

This invention relates to the field of zinc alloy surface modification technology, and particularly to a corrosion-resistant medical zinc alloy, its preparation method, and its applications. The preparation method includes the following steps: weighing raw materials according to the chemical composition of the zinc alloy; cleaning the surface of the raw materials; smelting, refining, and casting to obtain an ingot; subjecting the ingot to equal-channel angular extrusion deformation to obtain an extruded zinc alloy; performing high-energy ion implantation on the zinc alloy to obtain a nitrogen-ion-implanted zinc alloy; and preparing a coating on the surface of the nitrogen-ion-implanted zinc alloy to obtain the final product. This invention achieves a high-adhesion, dense, and uniform deposition effect on the alloy surface through the synergistic control of "equal-channel angular extrusion + high-energy nitrogen ion implantation + biomimetic coating deposition," solving the problem of severe galvanic corrosion at localized sites in existing zinc alloys under corrosive environments. Simultaneously, the dense deposition layer helps inhibit rapid dissolution of the zinc alloy surface, significantly reducing the corrosion rate of the zinc alloy in corrosive environments.

The invention relates to the technical field of vehicles, and discloses a circuit conduction assembly and a vehicle, the circuit conduction assembly is suitable for being electrically connected with a vehicle body conductive part, the vehicle body conductive part comprises a first element, and the standard electrode potential of the first element is E1; comprising a conductive terminal, the conductive terminal comprises a second element, the standard electrode potential of the second element is E2, and E2 is larger than E1; the insulating part is arranged between the vehicle body conductive part and the conductive terminal in an insulating manner so as to prevent direct contact between the vehicle body conductive part and the conductive terminal; and the conduction piece is connected with the vehicle body conductive part and the conductive terminal and comprises a third element, the standard electrode potential of the third element is E3, and E3 is larger than E1 and smaller than E2. According to the circuit conduction assembly provided by the invention, the conductive part of the vehicle body is isolated from the conductive terminal by using the insulating part, the occurrence of galvanic corrosion is inhibited, the conduction part is used as a bridge of a current path, and the conduction part selects a third element of which the standard electrode potential E3 is between E1 and E2, so that the occurrence probability of galvanic corrosion is reduced.

The invention relates to an aluminothermy welding flux for a zinc-clad steel grounding material and a welding method of the aluminothermy welding flux, and belongs to the technical field of metal material welding. In order to solve the core technical problem that joint potential matching and welding firmness compatibility are difficult to realize by an existing aluminothermy welding flux for the zinc-clad steel grounding material, the invention provides the aluminothermy welding flux for the zinc-clad steel grounding material. The aluminothermy welding flux comprises iron oxide powder, aluminum powder, tin powder and nickel powder. According to the invention, the iron-based welding flux is compounded with tin and nickel, and the tin and the nickel have a synergistic effect, so that the technical prejudice that the iron-based welding flux is difficult to adapt to zinc-clad steel welding in the field is overcome, and the unexpected technical effect is realized. The tensile strength of the connector is larger than or equal to 620 MPa, the corrosion rate is smaller than 0.05 mm / year, the conductivity loss is smaller than 5%, and the performance is obviously superior to that of a copper-based connector. The problem of compatibility of potential matching and welding firmness is fundamentally solved, galvanic corrosion is eliminated, the process is simple and convenient, the cost is controllable, and corrosion prevention and engineering reliability are greatly improved.

The invention discloses a galvanic corrosion risk assessment method and device for a dissimilar metal lap joint structure, and relates to the technical field of corrosion protection, and the method comprises the steps: obtaining standard polarization curves of a plurality of metal materials for the power system design of aviation equipment, so as to form a polarization curve library; determining a first metal material and a second metal material which form the to-be-evaluated dissimilar metal lap joint structure; acquiring a first standard polarization curve of the first metal material and a second standard polarization curve of the second metal material from a polarization curve library to determine the standard galvanic corrosion current density of the lap joint structure of the galvanic anode metal material and the dissimilar metal to be evaluated; determining a target corrosion rate of the galvanic couple anode metal material; and based on the target corrosion rate, determining a galvanic corrosion risk assessment result of the to-be-assessed dissimilar metal lap joint structure. The technical problem of low efficiency of a galvanic corrosion risk assessment mode in related technologies is solved, and the technical effect of improving the efficiency of galvanic corrosion risk assessment is achieved.

The application discloses a kind of corrosion-resistant condensing heat exchanger, including: by cooling pipe component, fixed to the header of the tube component both ends, with the condensate reservoir of the tube component connection, with the tube component both ends connection pipe joint.The application also discloses a kind of corrosion-resistant condensing heat exchanger manufacturing method, the method includes the following steps: before pipe head implements welding operation, pipe head is partitioned and identified;When welding, according to the window of welding protection and deformation prevention tool design, symmetric welding is carried out;After welding is completed in window, window is rotated, and then continue welding;According to the sequence of installation tool, protection gas is filled, welding window is opened, symmetric welding, tool rotation degree, alternate welding;By detecting and judging welding quality to weld joint.The whole condensing heat exchanger of the application adopts titanium alloy one kind of material to avoid galvanic corrosion, adopts fusion welding to avoid weak link such as brazing filler metal, realizes excellent corrosion resistance in long-term operation process.

The invention discloses a vehicle driving motor shaft voltage and bearing electrocorrosion detection system and method, a medium and equipment, and the system comprises an induction ring which is used for detecting a shaft voltage original signal; the radio frequency current transformer is used for detecting a bearing current original signal; the temperature sensor is used for monitoring the bearing temperature; the rotating speed / position sensor is used for detecting the motor rotating speed torque of the driving motor; the data acquisition module is used for acquiring a shaft voltage original signal, a bearing current original signal, a bearing temperature and a motor rotating speed torque, and performing analog-to-digital conversion on the shaft voltage original signal, the bearing current original signal, the bearing temperature and the motor rotating speed torque; and the detection module is used for analyzing the shaft voltage digital signal and the bearing current digital signal which are obtained through analog-to-digital conversion, and determining a bearing electrocorrosion risk coefficient of the driving motor and a corresponding risk level according to an analysis result and a bearing temperature value and a motor rotating speed torque value which are obtained through analog-to-digital conversion by utilizing a risk fusion evaluation model.

The application relates to a nano cerium oxide reinforced biological magnesium alloy and a preparation method thereof, and belongs to the technical field of medical implant material preparation. The biological magnesium alloy is composed of a magnesium matrix, an aluminum-cerium phase and nano cerium oxide, and the preparation method is as follows: (1) nano cerium oxide and AZ61 magnesium alloy powder are mixed by ball milling under an argon atmosphere according to a designed proportion to obtain uniformly dispersed mixed powder; and (2) the above mixed powder is used as raw material to prepare the nano cerium oxide reinforced biological magnesium alloy by using a selective laser melting technology under an argon atmosphere. In the application, part of the nano cerium oxide is reduced into cerium by magnesium, the cerium combines with aluminum in the matrix to form an aluminum-cerium phase, magnesium-aluminum phase precipitation is inhibited, and micro-galvanic corrosion can be inhibited; meanwhile, the remaining nano cerium oxide falls off into a degradation product film after the magnesium matrix is degraded, the compactness of the product film is increased, the invasion of an erosion liquid is blocked, and the degradation resistance of the magnesium alloy is improved in a synergistic manner by inhibiting galvanic corrosion and increasing the compactness of the degradation product film.

The utility model relates to the technical field of vehicles, in particular to a vehicle. The embodiment of the utility model provides a vehicle. The vehicle comprises a front anti-collision beam, a vehicle body and a connecting assembly. The front anti-collision beam comprises a front anti-collision beam body and two connecting arms, the two connecting arms are connected to the two ends of the front anti-collision beam respectively in the left-right direction of the vehicle, and each connecting arm extends in the front-back direction of the vehicle; the vehicle body comprises two vehicle body longitudinal beams, the two vehicle body longitudinal beams are arranged in a spaced mode in the left-right direction and extend in the front-back direction, and a connecting column is arranged at the front end of each vehicle body longitudinal beam; the number of the connecting assemblies is two, and each connecting assembly is detachably connected between the corresponding connecting arm and the corresponding connecting column. Galvanic corrosion between the anti-collision beam and a vehicle body is reduced, and the service life of vehicle body parts is prolonged.

The application discloses an antibacterial composite metal coating based on protective area etching and galvanic corrosion and a preparation method and equipment thereof, and the method comprises the following steps: 1) forming a composite coating by vapor depositing a metal transition layer with a standard electrode potential higher than silver, a silver island intermediate layer and electrochemically depositing a silver layer on the surface of a pretreated titanium-based equipment; 2) performing isolation line etching on the outside of the coating area boundary of the equipment surface by laser; 3) preparing a hydrophobic protective coating on the surface of the reserved coating area; 4) filling paraffin in the isolation line groove to form a temporary hole sealing layer; 5) immersing the equipment in an acidic electrolyte to selectively dissolve the coating in the to-be-stripped area in a sectional stripping mode; 6) removing the paraffin in the isolation line groove and performing trimming by laser; and 7) obtaining the coating material after mechanical polishing, cleaning, drying, vacuum packaging and radiation sterilization. The high-strength coating can realize efficient sterilization through the galvanic corrosion effect and prevent coating abrasion during use.

An opening is formed within a dielectric material overlying a semiconductor substrate. The opening may comprise a via portion and a trench portion. During the manufacturing process a treatment chemical is placed into contact with the exposed surfaces in order to release charges that have built up on the surfaces. By releasing the charges, a surface change potential difference is reduced, helping to prevent galvanic corrosion from occurring during further manufacturing.

An integrated circuit package includes a substrate, a semiconductor interposer on the substrate, and a first integrated circuit chip on the interposer. The interposer includes a galvanic effect test structure including a test contact pad and a detection contact pad. The interposer includes a plurality of primary contact pads electrically coupled to the first integrated circuit chip. The galvanic effect structure can be utilized to test the interposer for galvanic corrosion prior to assembling the interposer into the integrated circuit package.

This invention belongs to the field of metal material processing and provides a low-alloy, high-corrosion-resistant magnesium alloy and its preparation method. The magnesium alloy composition, by mass percentage, includes: Ca: 0.05-0.5%, In: 0-1.0%, rare earth elements: 0-2.0%, unavoidable impurities ≤0.03%, and the balance being Mg; the rare earth elements are one or any combination of Gd, Dy, Ho, Tm, Er, and Sc. The magnesium alloy preparation method includes atmosphere-protected melting, sub-rapid solidification, homogenization, multi-pass rolling, and recrystallization annealing. This invention reduces impurity phases and second phases, obtains a fully recrystallized fine-grained structure, effectively eliminates dislocations and residual stress, ultimately reduces galvanic corrosion and cathodic hydrogen evolution reaction, significantly improves the passivation ability of the film, promotes uniform corrosion, and enhances film continuity, thereby achieving excellent corrosion resistance.

The utility model provides a contact device, a relay and electric equipment. Relates to the technical field of electronic devices. The contact device comprises a contact body, a contact piece and a connecting piece. The contact element is connected with an external circuit; one of the contact piece and the contact body is a copper piece, and the other one of the contact piece and the contact body is an aluminum piece; the connecting piece is arranged between the contact body and the contact piece. The contact body and the contact piece are connected into a whole through the connecting piece, so that the problems of corrosion of a primary battery and difficult combination caused by direct contact of the contact piece and the contact body are avoided, the conductivity between the contact piece and the contact body is ensured, the connection strength of the contact piece and the contact body is improved, the service life of the contact device is prolonged, and the service life of the contact device is prolonged. The connection resistance between the contact device and the busbar is reduced, and the use performance of the contact device is improved.

The application discloses a high-strength and high-toughness galvanic corrosion protection coating and a preparation method and application thereof, and belongs to the technical field of surface protection. The protection coating comprises an Al2O3-TiO2 composite coating arranged on the surface of a base body. The composite coating contains deposits formed by complete melting of part of original powder materials and serving as a framework for maintaining the overall structure of the composite coating, and deposits formed by partial melting or non-melting of the remaining original powder materials and wrapped in the framework to realize nanometer toughening of the coating. A sealing layer is formed in the surface region of the composite coating, which can reduce the porosity of the coating, improve the toughness and insulation performance of the coating, prevent the entry of corrosive media, form stable hydrophobic properties on the surface of the coating, and improve the corrosion resistance of the coating. The obtained coating has excellent insulation performance and strong impact resistance, and can be used for galvanic corrosion protection at the connecting position of dissimilar metals with relative motion and / or bearing load.

The utility model relates to the technical field of vehicle accessories, and provides a battery pack tray structure and a vehicle. Wherein the battery pack tray comprises a magnesium alloy tray, an aluminum alloy shaft sleeve and an insulating bush; the magnesium alloy tray is used for bearing a battery pack and is provided with a through mounting hole; the aluminum alloy shaft sleeve comprises a main body part arranged in the mounting hole in a penetrating mode, and a first annular edge and a second annular edge which are arranged at the two ends of the main body part, and the first annular edge and the second annular edge are arranged on the peripheral side of the mounting hole in a surrounding mode so that the main body part can be fixed in the mounting hole; and the insulating bush is arranged between the magnesium alloy tray and the aluminum alloy shaft sleeve, so that the main body part, the first annular edge and the second annular edge are insulated from the magnesium alloy tray. The magnesium alloy tray can be fixedly connected with the frame of the vehicle through the light aluminum alloy shaft sleeve, and the insulating bush isolates the aluminum alloy shaft sleeve from the magnesium alloy tray to avoid galvanic corrosion, so that the magnesium alloy tray can be practically applied to the vehicle, and the light weight of the battery pack is realized.

The invention discloses a wire harness assembly, an automobile wire harness and a new energy automobile, and belongs to the technical field of automobile wire harnesses. The wire harness assembly comprises a cable and a connecting terminal, a stranded conductor of the cable is formed by stranding copper-aluminum-steel composite metal wires, a base body of the connecting terminal is formed by adopting a copper-aluminum-steel composite metal plate with an inner side copper layer, a middle aluminum layer and an outer side steel layer, and the stranded conductor is fixedly connected with the connecting terminal through solid-phase welding. Through the copper-aluminum-steel composite structure, the high conductivity of copper, the light weight of aluminum and the high strength and high elasticity of steel are integrated, the weight and cost of the wire harness can be effectively reduced, the contact resistance is reduced, galvanic corrosion is fundamentally inhibited, the connection reliability is improved, and the copper-aluminum-steel composite wire harness can be widely applied to high-voltage and low-voltage wire harness systems of new energy automobiles. The lightweight level of the whole vehicle and the safety and stability of an electrical system are improved.

The application discloses a brazing process and application of a copper alloy-stainless steel composite structure and comprises the following steps: S1, performing sand blasting treatment on surfaces of copper alloy and stainless steel base materials to be welded; S2, preparing a uniform and dense corrosion barrier layer on the surface of the copper alloy base material through high-pressure cold spraying; the corrosion barrier layer comprises Ti and Al2O3; S3, placing a BAg20CuZn filler metal made into a welding ring between the copper alloy and the stainless steel base material provided with the corrosion barrier layer, and performing induction heating welding under argon protection; in the cold spraying process, high-pressure gas generates a high-speed airflow carrying Ti and Al2O3 powder particles, the particles are accelerated, and then impact the surface of the copper alloy in a complete solid state, and gradually deposit to form a coating. According to the application, the uniform and dense corrosion barrier layer is arranged between the surface of the copper alloy part and the filler metal through cold spraying, so that galvanic corrosion is effectively inhibited, and meanwhile, good welding performance is maintained.

The invention relates to the technical field of metal embedded protection structures, and discloses a bimetal embedded protection structure and a production process, the bimetal embedded protection structure comprises a metal body, a metal insertion strip embedded in at least part of the wall thickness of the metal body, and an insertion groove formed in the metal body and formed by embedding and forming the metal insertion strip, the material of the metal body is different from that of the metal insertion strip, and a potential difference eliminating layer for eliminating the potential difference between the metal insertion strip and the metal body is arranged between the metal insertion strip and the insertion groove. The potential difference eliminating layer is arranged between the metal insertion strip and the insertion groove of the metal body, and the potential difference eliminating layer and the metal body are made of the same material, so that the potential difference caused by different materials of the metal insertion strip and the metal body is avoided, galvanic corrosion is avoided, the bonding strength is improved, and the drop resistance is enhanced.

An electric insulation threaded connector for ships comprises a metal connector body, an insulation threaded inner sleeve and an insulation threaded outer sleeve. The insulated threaded inner sleeve is in threaded connection and fixation with the internal threaded end of the joint body; the insulating threaded jacket is screwed and fixed with the external threaded end of the joint body; insulating resin is filled between the insulating threaded inner sleeve and the internal threaded end of the joint body and between the threaded matching surfaces between the insulating threaded outer sleeve and the external threaded end of the joint body; the connector body comprises but not limited to a square shoulder threaded connector, a non-square shoulder threaded connector and a plug valve. The electric insulation screwed joint for the ship fills the blank of electric insulation measures at the threaded direct connection positions between pipeline accessories such as a pressure gauge, a pressure sensor and a thermometer and pipelines in a seawater pipeline system, so that the threaded direct connection positions have good electric insulation performance, the problem of galvanic corrosion between dissimilar metals is solved, and the service life of the pipeline accessories is prolonged. And the service life of pipeline accessories such as a pressure gauge, a pressure sensor and a thermometer is prolonged.

The invention discloses a ceramic coating marine cable connector, which comprises a connector shell, a conductive pin and an end cover, a composite protective coating system is arranged on the outer surface of the connector shell and the matching surface of the end cover, and a metal protective coating is arranged on the contact surface of the conductive pin. According to the ceramic coating marine cable connector and the preparation method thereof, the problem of galvanic corrosion of dissimilar metal is effectively solved through micro-arc oxidation / electronickelling differentiation bottom layer treatment, physical barrier and intelligent response cooperative protection is achieved through the graphene composite middle layer, a complete protection system is formed in combination with the super-hydrophobic top layer, and the corrosion resistance of the connector is improved. And finally, while the bonding strength of the coating is ensured, the corrosion-resistant life and maintainability of the connector in a marine environment are remarkably improved.

The objective of this invention is to provide a battery pack fixing structure that can suppress battery module swaying and inhibit galvanic corrosion. The battery pack fixing structure comprises: a support member disposed between adjacent battery modules in the vehicle's height direction, supporting the adjacent battery modules, the battery modules being enclosed in a housing formed of carbon fiber reinforced material and mounted on the vehicle's frame; a bracket that fixes the support member to the frame; a fastening member inserted into the bracket, housing, and support member when the housing is located between the support member and the bracket, connecting the bracket to the support member; and a cylindrical collar penetrating the housing and located between the support member and the bracket, contacting the support member and bracket when they are not in contact with the housing, and having the fastening member penetrating its center; the collar's surface being covered with a hard anodized layer.

The invention belongs to the technical field of metal material surface engineering, and discloses a matching pair composed of a coated steel plate and a coated fastener and a manufacturing method of the matching pair, and by controlling components, processes and matching gaps of a base body and a plating layer of each matching pair assembly, the coated steel plate and the coated fastener are enabled to have good corrosion resistance on the basis that the coated steel plate and the coated fastener have good corrosion resistance. And the mutual galvanic corrosion tendency is reduced to the minimum, a good connection corrosion resisting effect is achieved, and the aluminum-plated galvanized sheet is particularly suitable for occasions where a connection assembly needs to be formed by a galvanized sheet and an aluminum-plated fastener. The invention also provides a non-transitory readable recording medium storing the program of the method and a system comprising the medium, and the program can be called through a processing circuit to execute the method.

This utility model discloses a cathode conductive rod, relating to the field of cathode rods. The key technical features are: a rod body and two lugs; two insulating posts are fixedly connected to the rod body; mounting grooves are formed on the side of the two insulating posts facing away from the rod body; through holes are formed on the lugs; fixing pins for passing through the through holes are provided on the insulating posts; and several contact posts are also provided on the rod body. The lugs and the rod body are insulated by an insulator, preventing current from flowing to the lugs. Since the metal lugs directly contact the rod body, they are prone to galvanic corrosion due to potential differences. The insulating posts, however, block this corrosion path, stabilizing the overall lifespan of the lugs. The lugs can be detached from the rod body and replaced via the fixing pin structure, allowing for replacement after corrosion.

The present application relates to the field of corrosion electrochemistry, and discloses a high-throughput detection method for metal corrosion resistance. The present application discloses a distributed multi-channel electrochemical workstation, which comprises an independent multi-channel direct-current test electrochemical workstation and an independent multi-channel alternating-current test electrochemical workstation; and a high-throughput detection method for metal corrosion resistance, which comprises using the distributed multi-channel electrochemical workstation to detect the metal corrosion resistance. The distributed multi-channel electrochemical workstation provided by the present application can effectively avoid the galvanic corrosion phenomenon caused by the wire bundle electrode electrochemical corrosion experiment, and solve the problems of high cost and large space occupation of the traditional independent parallel high-throughput electrochemical corrosion experiment. The high-throughput detection method for metal corrosion resistance provided by the present application can ensure the detection efficiency and greatly reduce the test cost, and can be applied to the high-throughput electrochemical corrosion experiment test of different metal materials.