295 results about "Nickel plate" patented technology

The invention discloses a neodymium iron boron magnet with a protective film and a manufacturing method thereof, and the manufacturing method specifically comprises the following steps: S1, pretreating a plurality of raw materials to ensure the purity and cleanliness of the raw materials; s2, the pretreated materials are mixed in proportion and smelted to prepare uniform neodymium-iron-boron alloy; s3, the smelted alloy is crushed, and particle powder meeting the requirement is prepared through jet mill equipment; s4, the powder is put into a mold, forming orientation is conducted through a magnetic field press, and the maximum residual magnetism is obtained; s5, performing high-temperature sintering on the molded magnet to improve the density and the magnetic performance of the molded magnet; s6, the sintered magnet is machined, and the needed size and shape are obtained; s7, carrying out pretreatment on the surface of the magnet, and carrying out aftertreatment after chemical nickel plating to ensure the quality of a plating layer; according to the method, the surface of the neodymium-iron-boron magnet is coated with a high-phosphorus chemical nickel layer in a plating mode, the magnet can be effectively prevented from being corroded by the external environment, and the service life of the magnet is prolonged.

The invention provides a high-wear-resistance and low-dilution gas shielded welding wire and a preparation method thereof, and belongs to the technical field of welding wire manufacturing. The welding wire consists of the following raw materials in parts by weight: 45-52 parts of iron; 18-22 parts by weight of an electrolytic nickel plate; 6-8 parts by weight of high-purity molybdenum powder; 4-6 parts by weight of nano tungsten powder; 3-4.5 parts by weight of a vanadium nitride alloy; 1.2 to 1.8 parts by weight of a niobium-iron alloy; 0.8-1.5 parts by weight of aluminum magnesium alloy powder; 0.3 to 0.6 part by weight of lanthanum cerium mixed rare earth; 0.15 to 0.25 part by weight of ferroboron alloy; 0.5 to 0.8 part by weight of metal silicon powder; 0.2 to 0.4 part by weight of a magnesium-calcium alloy; and 0.1-0.3 part by weight of titanium hydride powder. The hard framework is formed through gradient distribution of carbides such as molybdenum, tungsten and vanadium, the wear-resisting life is remarkably prolonged, melting mixing of base metal is reduced through the nickel-based alloy, the consistency of deposited metal components is ensured, free hydrogen is fixed through hydrogen trap phases such as titanium and niobium, and a moisture absorption path is blocked in combination with a surface passivation film.

The invention discloses an intelligent control method and system for the thickness of a nickel plating layer of a diamond fretsaw, and relates to the technical field of intelligent control. The method comprises the steps that a combined nickel plating constraint space and a reinforced nickel plating constraint space of a combined nickel plating tank and a reinforced nickel plating tank are established; optimizing and generating combined nickel plating parameters of the combined nickel plating tank; executing a combined nickel plating process, detecting the thickness distribution of a combined nickel plating layer, completing a carborundum electroplating process, and detecting the carborundum distribution density; and dynamic reinforcing nickel plating parameters are generated and adjusted, a reinforcing nickel plating tank is configured according to the dynamic reinforcing nickel plating parameters, and a second nickel plating procedure is executed to achieve intelligent thickness control. The technical problems that the plating thickness control precision is insufficient, the product quality stability is poor and the production efficiency is low due to the fact that an existing diamond fretsaw nickel plating layer thickness control method cannot accurately adapt to bus base material characteristic fluctuation, plating solution state change and personalized requirements in the production process are solved.

The utility model discloses an electrolytic nickel cleaning system which comprises a cleaning pool, an electrolytic nickel cleaning device and a controller, the cleaning pool is provided with a containing groove which is open towards the upper side, and the containing groove is used for containing a cleaning medium; the receiving frame is used for receiving the materials; the driving device is installed on the installation support and connected with the receiving frame, and the driving device can be used for driving the receiving frame to rotate around the first axis and driving the receiving frame to ascend and descend in the vertical direction so that at least part of the receiving frame can be placed in the containing groove. Therefore, the receiving frame is used for receiving materials (such as a plurality of nickel plates which are arranged in a stacked mode), the driving device is used for driving the position adjustment of the receiving frame so that the receiving frame can be adjusted to the position where the materials can be immersed in the cleaning medium, and the receiving frame is further driven to rotate around the first axis so that swinging of the receiving frame can be achieved; therefore, the materials can make full contact with the flowing cleaning medium, the multiple nickel plates can be cleaned at the same time, and then the cleaning efficiency is improved while the nickel plate cleaning effect is improved.

The invention relates to the technical field of fluid machinery, in particular to a heater and a compressor assembly, a ceramic heating plate is arranged on a heat conducting plate through nickel plating, reflow soldering and the like, heat is transferred to a containing space of the heater through the heat conducting plate, and the situation that the ceramic heating plate directly makes contact with fluid, boiling is generated, and consequently the heat exchange efficiency is reduced is avoided. The combination mode of nickel plating bottom welding can enable the ceramic heating plate and the heat conduction plate to be combined more tightly, heat loss is small during heat conduction, and heat exchange efficiency is not affected.

The invention discloses a nickel plate electroplating forming pool for a light guide plate, and relates to the technical field of light guide plate processing, the nickel plate electroplating forming pool comprises a pool body, an electroplating device and an auxiliary device; an electroplating bath containing electroplating liquid is arranged in the tank body; the electroplating device comprises an electrolysis assembly and a clamping assembly, and the auxiliary device comprises a net plate; the electroplating bath is separated by the net plate, and a plurality of net holes are uniformly distributed in the net plate; the electrolysis assembly and the clamping assembly are located on the two sides of the screen plate respectively, a plurality of electrolysis rods of the electrolysis assembly are all immersed in electroplating liquid, and the light guide plate is immersed in the electroplating liquid after being clamped on the clamping assembly; and the plurality of mesh holes in the mesh plate are aligned with the concave dot structures on the light guide plate. The preparation quality of the nickel plate can be effectively improved, the cost is reduced, the efficiency is improved, and therefore the uniformity of concave point or net point results obtained after hot pressing treatment of the light guide plate can be effectively improved, and the optical performance of the light guide plate is guaranteed.

The invention belongs to the technical field of grinding materials and grinding tools, and particularly relates to a diamond electroplated grinding wheel directionally arranged in a magnetic field and a preparation method and application thereof. Firstly, electroplating liquid is added into an electroplating bath, then 30%-40% of magnetic diamond abrasive materials are added into the electroplating liquid, directional magnetic sanding is carried out with the grinding wheel base body A as a cathode and a nickel plate as an anode, the magnetic field intensity is controlled to be 0.1-1 T, the cathode current density is controlled to be 0.4 A / dm < 2 >-0.6 A / dm < 2 >, the electroplating time is 10-20 min, and a grinding wheel base body B is obtained; removing floating sand from the grinding wheel base body B to obtain a grinding wheel base body C; and the grinding wheel base body C is thickened to obtain a grinding wheel base body D, and the grinding wheel base body D is modified to obtain the grinding wheel. The grinding rate of the manufactured grinding wheel is reduced by 10%-25%, the service life is prolonged by 30%-50%, the machined surface roughness (Ra) can reach 0.3 micrometer or below, and the machined surface precision is reduced by 10%-25%. The grinding wheel is applied to nanoscale grinding of optical glass, sapphire and silicon carbide wafers and forming machining of turbine blade mortises and ceramic matrix composites, and the precision and roughness of the grinding wheel can be effectively guaranteed.

The application belongs to the technical field of chemical production, and particularly relates to a chemical nickel plating wastewater treatment equipment. In the treatment process, repeated precipitation and filtration are needed, which leads to slow treatment efficiency. The following scheme is proposed, which comprises a treatment cylinder, the lower side of the treatment cylinder is fixedly connected with a cylinder seat, a water inlet is formed in the treatment cylinder, a water inlet pipe is fixedly connected in the water inlet, a water outlet is formed in the bottom of the treatment cylinder, a drain pipe is fixedly connected in the water outlet, valves are arranged on the water inlet pipe and the drain pipe, and a top plate is arranged above the treatment cylinder. The disclosed chemical nickel plating wastewater treatment equipment utilizes the magnetism of nickel to adsorb solid nickel in wastewater, so that the solid nickel in wastewater can be conveniently adsorbed and removed. The electromagnetic iron is electrified to generate magnetic properties, so that the solid nickel can be quickly adsorbed and subsequently separated and separated. The solid nickel does not need to be repeatedly filtered, and the recovery efficiency of the solid nickel in wastewater is improved.

The invention relates to a preparation method of antimony pentafluoride, which comprises the following steps: preheating raw material gas nitrogen trifluoride, placing nitrogen trifluoride and antimony powder in a tubular furnace reactor made of a specific material, carrying out gradient heating reaction at 300-400 DEG C under the condition that the antimony powder is distributed by adopting a multi-layer nickel plate tiled structure, carrying out reaction for 10-40 seconds, and carrying out solid filtration through a filter after the reaction is completed, so as to obtain the antimony pentafluoride. And carrying out cold trap collection to obtain an antimony pentafluoride product. The diameter of the reactor is made of a nickel material or Monel to prevent corrosion of antimony pentafluoride, the number of tiled layers of nickel plates is r / 5-r / 10, the contact area is increased, the reaction yield is increased, and the utilization rate of the raw material nitrogen trifluoride is increased.

The invention belongs to the technical field of infrared thermal wave detection, and provides a method for detecting internal defects of a nickel plate, which comprises the following steps: S100: dividing a nickel plate array into a plurality of areas to be detected, S200: heating the areas to be detected on one side of the nickel plate through a heating device, and shooting a temperature distribution change video of the areas on the other side of the nickel plate through an infrared camera, s300, repeating the step S200 to shoot temperature distribution change videos of all the to-be-detected areas, then splicing all the temperature distribution change videos according to the positions of the plurality of to-be-detected areas to obtain a temperature distribution video of the whole nickel plate, and S400, analyzing the temperature distribution video of the whole nickel plate through an image processing method to obtain the temperature distribution video of the whole nickel plate. Therefore, the position and the size of the defect in the nickel plate are judged. The whole nickel plate is divided into a plurality of small grid areas, and each area is independently heated, so that the whole nickel plate is uniformly heated, and the nickel plates which do not meet the production requirements can be found and screened in time.

The invention relates to a metal plated carbon fiber which comprises a carbon fiber layer, a copper or nickel plating layer is arranged on the carbon fiber layer, and an aluminum plating layer is arranged on the copper or nickel plating layer. The invention also relates to a manufacturing method of the metal-plated carbon fiber, which comprises the following steps: S1, plating copper or nickel on the surface of the carbon fiber by magnetron sputtering: in the plating process of the copper plating layer, setting the magnetron sputtering power to be 150-300W, the argon flow to be 30-80sccm and the sputtering time to be 5-15 minutes; in the sputtering process of the nickel plating layer, the magnetron sputtering power is set to be 300-350 W, the gas ratio is set to be that the ratio of argon to nitrogen is (3.5-4.5): 1, the gas flow is 40-80 sccm, and the sputtering time is 10-20 minutes; and S2, controlled sputtering aluminum plating is conducted, specifically, in the sputtering process of the aluminum plating layer, the power is set to be 250-350 W, the flow of argon or nitrogen is 40-80 sccm, and the sputtering time is 15-25 minutes. According to the method, the stability of the composite material is enhanced, the thermal conductivity and thermal stability are improved, the mechanical property is improved, and the coating thickness can be adjusted.

The invention provides a repairing method suitable for an engine case connecting bolt. The method comprises the following steps that S1, chemical stripping and fine treatment are conducted on the connecting bolt, an old plating layer on the surface of the connecting bolt is removed, and the surface of the connecting bolt is evenly coarsened; s2, a nitric acid-phosphoric acid binary acid system is adopted to conduct soaking treatment on the connecting bolt treated in the step S1 at the normal temperature, and a passive film on the surface of the connecting bolt is removed; s3, the connecting bolt treated in the step S2 is subjected to chemical nickel plating; and S4, the connecting bolt treated in the step S3 is subjected to hot water stabilization and dehydrogenation treatment, and the repaired connecting bolt is obtained. The invention provides a set of process from old plating layer removal, passive film removal and chemical nickel plating to hydrogen brittleness avoidance, so that the whole repair process is highly controllable, the product quality is stable and repeatable, and the problem of batch scrapping caused by batch difference and process uncontrollability in the prior art is solved.

This invention relates to the field of electroless plating technology, and more particularly to a low-phosphorus electroless nickel plating solution and a method for nickel plating on an aluminum alloy substrate. The low-phosphorus electroless nickel plating solution comprises the following components by mass concentration: a nickel ion source in the form of Ni... 2+ Calculated as 1.0~5.0 g / L; hypophosphite as H2PO2 ‑ The concentrations are calculated as follows: 20–45 g / L; glycine 5–40 g / L, gluconate 5–60 g / L; polyaspartic acid and / or its salts 0.2–5.0 g / L; pH buffer 2–25 g / L; alkyl glycosides 0.05–1.0 g / L; iodate stabilizer, in IO3... ‑ The concentration is calculated to be 0.2~5.0 mg / L. This invention maintains a high deposition rate and significantly improves the tolerance of by-products in the bath solution under low nickel ion concentration conditions. It is also free of heavy metals and sulfur-containing organic stabilizers, reducing the metal load and environmental risk of the waste liquid. It is suitable for various aluminum alloy matrices treated with double zinc replacement.

The invention relates to a preparation method of a nickel-chromium-iron alloy consumable electrode, the consumable electrode and an alloy ingot. The method comprises the steps that an electrolytic nickel plate is subjected to vacuum melting under the condition that the vacuum degree is smaller than or equal to 0.67 Pa, after the electrolytic nickel plate is melted down, the vacuum degree is kept to be smaller than 2 Pa and lasts for 5 min to 10 min, and a nickel melt with the lead removal rate larger than or equal to 60% is obtained; pouring the nickel melt into a pure nickel electrode under a vacuum condition; combining the pure nickel electrode with industrial pure iron to form an iron-nickel composite electrode; with the iron-nickel composite electrode as a consumable electrode, ferrochrome is added into a lined electroslag furnace for smelting, and a high-temperature metal melt is obtained; the high-temperature metal melt is tapped to a steel ladle, and argon is blown to the bottom of the high-temperature metal melt in the steel ladle for 3-5 min; and the high-temperature metal melt obtained after bottom argon blowing is poured into the consumable electrode. According to the method, five types of fusible elements including Pb, Bi, Sn, As and Sb are systematically and gradually reduced to be extremely trace by coupling three steps of vacuum volatilization, deep electroslag separation and secondary ladle refining.

The invention relates to the field of microelectronic material manufacturing, in particular to a nickel-sulfur anode and a preparation method thereof. The method comprises the steps that a high-purity nickel plate with the purity larger than or equal to 4N5 and a nickel-sulfur intermediate alloy are used as raw materials for burdening and smelting, a nickel-sulfur anode cast ingot is obtained, and the mass content of sulfur in the nickel-sulfur anode cast ingot is 5-15 ppm; and then the nickel-sulfur anode cast ingot is subjected to hot forging at the heat preservation temperature of 500-1000 DEG C, and the blank obtained after hot forging is subjected to annealing treatment at the annealing temperature of 300-600 DEG C. According to the invention, a short-flow processing technology is adopted, the difficulty that the material is high in brittleness and easy to crack is overcome, the content of S in the nickel-sulfur anode is 10 + / -5ppm, the purity of the nickel-sulfur anode is up to 99.995% or above, and the coating purity is high; the organization structure is compact and free of pores, grains are fine and uniform, the grain size is smaller than or equal to 150 microns, and the coating uniformity is good; the coating efficiency is high, and the coating film can be widely applied to the industries of electronic components, communication, solar photovoltaic photoelectricity and the like.

The application relates to the technical field of detection, and discloses a multimode nondestructive testing equipment for nickel plates and cobalt plates, which comprises a detection chamber, the inside of the detection chamber is filled with ultrasonic detection liquid, bases are further arranged on the two sides of the detection chamber, a light plate is slidably arranged on the base, a CCD visual detection probe is arranged on the light plate, the CCD visual detection probe is used for capturing surface defects of the nickel plate, the light plate is used for light compensation and shadow dead angle reduction, and an ultrasonic detection probe is further arranged in the detection chamber. The CCD vision and the ultrasonic detection are cooperated in the application, the defects on the surface and in the inside are comprehensively covered, and missing is avoided; the traditional detection is easily misjudged by light, personnel experience and the like, and the defects cannot be quantified; the application guarantees clear visual imaging by means of the light plate, adjusts the components to drive the ultrasonic probe to accurately move, combines signal quantitative analysis, gets rid of artificial subjective interference, and improves detection accuracy.

The utility model discloses a magnesium alloy surface nickel plating device, which comprises a plating solution tank, a lifting frame and a rolling frame, the rolling frame is rotatably arranged on the lifting frame, a rotating shaft is rotatably arranged on the lifting frame, a driving motor is arranged on the outer wall of the plating solution tank, the driving motor is connected with the rotating shaft through a rotating mechanism, and the rotating mechanism is connected with the rotating shaft. The rotating shaft is connected with the rolling frame through a transmission mechanism, a movable opening is formed in the plating solution tank, and a limiting frame extending into the rotating opening is arranged in the movable opening through an elastic mechanism. The rolling frame is driven by the driving motor to rotate, so that uniform mixing of components such as nickel salt, a complexing agent and an additive in a plating solution is effectively promoted, stable performance of the plating solution is ensured, a good chemical environment is provided for nickel plating reaction, and the quality of a plating layer is ensured.

The invention belongs to the technical field of plating processes, and particularly relates to a high-binding-force diamond aluminum plating process. The method comprises the following specific steps: S1, composite nickel plating: carrying out composite nickel plating on a pretreated diamond aluminum composite material; s2, palladium activation, wherein the diamond-aluminum composite material obtained after composite nickel plating is put into palladium salt to be soaked, and then the diamond-aluminum composite material is taken out to be cleaned; s3, chemical nickel plating; s4, sensitization is carried out; s5, palladium activation; and S6, chemical nickel plating, nickel electroplating, annealing treatment and drying are sequentially conducted on the diamond aluminum composite material, and the plating process is completed. According to the plated diamond aluminum, a plating layer does not peel, swell and discolor under the gold-tin soldering condition, diamond particles do not fall off, the overall wettability is good, the stability is high, the cost is low, operation is easy, and the condition of batch production can be met.

This invention relates to a copper-plated aluminum foil and its preparation method. The preparation method includes: S1, pretreatment: pretreatment of the aluminum foil using a three-in-one etching solution; S2, neutralization treatment: neutralization treatment of the aluminum foil using a neutralizing solution; S3, copper plating treatment: electroplating neutral copper into the aluminum foil in a copper plating solution to obtain copper-plated aluminum foil; S4, anti-oxidation treatment: treating the copper-plated aluminum foil with an environmentally friendly anti-oxidation solution and drying it to obtain copper-plated aluminum foil. This preparation method, through specific pretreatment and neutralization treatments, can directly electroplat a copper layer on the surface of the aluminum foil, eliminating the cumbersome steps of zinc plating or nickel plating intermediate layers. Furthermore, the copper-plated aluminum foil obtained by this invention exhibits excellent adhesion between the copper layer and the aluminum foil, reaching the adhesion level of traditional zinc plating processes. Moreover, the copper-plated aluminum foil has good anti-oxidation properties, belonging to high-quality aluminum and aluminum alloy sheets, and can be widely used in batteries, electronic appliances, LED lights, and circuit boards.

The utility model belongs to the technical field of nickel plating devices, and particularly relates to a nickel plating device for electroplating, which adopts the following scheme that the nickel plating device comprises a nickel plating pool, the shell is fixedly mounted on the left side of the nickel plating pool, and the shell communicates with the nickel plating pool; the number of the electric heating pipes is four, and the four electric heating pipes are fixedly installed on the inner wall of the nickel plating pool. The pump body is fixedly mounted at the top of the shell; the pipeline is fixedly mounted at the top of the pump body; the number of the mounting mechanisms is two, and the mounting mechanisms are matched with the shell and the dismounting mechanism respectively; the filtering mechanism comprises a cover plate and four filtering plates; according to the plating solution filtering device, the pressing frame is pressed on the left side of the shell, the pressing frame can unlock the cover plate and the filtering plates, and the filtering plates can be replaced, so that the plating solution filtering effect cannot be reduced, and the plating solution filtering device is rapid and convenient to use.

The invention belongs to the technical field of solid oxide fuel cell materials, and provides a connector coating of a solid oxide fuel cell stack and a preparation method of the connector coating. The preparation method comprises the following steps: providing a connector-ferritic stainless steel matrix of the solid oxide fuel cell stack; the ferritic stainless steel matrix serves as a cathode, the metal plate serves as an anode, electroplating is conducted, and a connector coating is prepared; the metal plate is selected from at least one of a pure copper plate, a pure zinc plate, a pure nickel plate and a copper-nickel alloy plate. The invention also provides the connector coating of the solid oxide fuel cell stack prepared according to the preparation method. The electroplating process adopted by the invention is mature, and densification and large-scale production of the coating are easy to realize. The coating of the connector is free of Cr element, so that cathode poisoning cannot be caused; and the stability under the anode side atmosphere is high. In addition, the oxygen ion conductivity of the coating is relatively low, so that the oxidation resistance of the connector is high; and the electron conductivity of the coating is relatively high.

This utility model discloses a nickel plating apparatus for semiconductor CVD components, comprising a frame, a mounting bracket disposed on the upper side of the frame, a drive motor with an output shaft disposed on the mounting bracket, a first rotating component sleeved on the lower end of the output shaft, a rotating shaft rotatably inserted into the frame, a second rotating component sleeved on the upper end of the rotating shaft, and a turntable for mounting workpieces disposed on the lower end of the rotating shaft. The first and second rotating components are fitted with transmission components. This utility model's nickel plating apparatus for semiconductor CVD components improves the nickel plating effect and provides good nickel plating uniformity.

A method of producing a flexible nickel phosphorus coating on a substrate. The substrate includes a dielectric material having a copper layer thereon. The method comprises the steps of: (1) activating the substrate with a palladium activation solution to catalyze the substrate, and 2) contacting the activated substrate with an electroless nickel phosphorus plating bath comprising: (i) a source of nickel ions; (ii) a hypophosphite ion source; (iii) at least one metal complexing agent; and (iv) an organic flexible additive. The nickel-phosphorus plating layer deposited on the substrate shows a columnar grain structure.

The application belongs to the technical field of stranding device, especially to the stranding device for high-temperature-resistant special cable, which comprises a stranding assembly, a ring-shaped cooling mechanism and a nickel plating assembly. The ring-shaped cooling mechanism is installed at the supporting end of the stranding assembly, and the side of the ring-shaped cooling mechanism is provided with the nickel plating assembly. The nickel plating assembly comprises a workbench, a nickel plating tank, a stirring assembly and a cleaning mechanism. The inside of the workbench is provided with the nickel plating tank, and the side of the nickel plating tank is provided with a heating assembly. The side of the stirring assembly is provided with the cleaning mechanism. The cleaning mechanism comprises a cleaning brush, a through hole and a collection bin. The cable tension is adjusted by the constraint roller sliding rod and the constraint plate. The four-way distribution of the stranding roller ensures uniform stranding. The cylindrical air duct cooperates with the stabilizing roller to realize ring-shaped air flow cooling. The nickel plating tank integrates the four-way stirring assembly to ensure uniform plating layer. The circumferentially distributed cleaning brush and the dust collection bin realize automatic cleaning. The dustproof shell and the heating assembly prolong the service life of the plating solution and realize continuous production.

The application relates to the alloy material technical field, and discloses a kind of nano rare earth nickel plating layer brass material and preparation method thereof.The application discloses a kind of nano rare earth nickel plating layer brass material and preparation method thereof.The application discloses a kind of nano rare earth nickel plating layer brass material and preparation method thereof.The application discloses a kind of nano rare earth nickel plating layer brass material and preparation method thereof.The application discloses a kind of nano rare earth nickel plating layer brass material and preparation method thereof.The application discloses a kind of nano rare earth nickel plating layer brass material and preparation method thereof.The application discloses a kind of nano rare earth nickel plating layer brass material and preparation method thereof.The application discloses a kind of nano rare earth nickel plating layer brass material and preparation method thereof.The application discloses a kind of nano rare earth nickel plating layer brass material and preparation method thereof.The application discloses a kind of nano rare earth nickel plating layer brass material and preparation method thereof.The application discloses a kind of nano rare earth nickel plating layer brass material and preparation method thereof.The application discloses a kind of nano rare earth nickel plating layer brass material and preparation method thereof.The application discloses a kind of nano rare earth nickel plating layer brass material and preparation method thereof.The application discloses a kind of nano rare earth nickel plating layer brass material and preparation method thereof.The application discloses a kind of nano rare earth nickel plating layer brass material and preparation method thereof.The application discloses a kind of nano rare earth nickel plating layer brass material and preparation method thereof.The application discloses a kind of nano rare earth nickel plating layer brass material and preparation method thereof.The application discloses a kind of nano rare earth nickel plating layer brass material and preparation method thereof.The application discloses a kind of nano rare earth nickel plating layer brass material and preparation method thereof.The application discloses a kind of nano rare

The invention discloses a preparation method of a high-quality large-specification copper-nickel-tin alloy round cast ingot. The preparation method comprises the following core preparation processes of burdening, smelting, refining, converter treatment, deoxidation and modification, electromagnetic stirring casting and homogenizing annealing. The ingredients are weighed according to target alloy components, the target alloy components comprise a copper plate raw material, a nickel plate raw material and a tin plate raw material, and the mass fraction of each element is controlled; s2, smelting: adding cathode copper and a nickel plate into a non-vacuum tipping type induction smelting furnace, starting to heat and melt, covering calcined charcoal in the melting process, and continuously starting an electromagnetic stirring device in the smelting process so as to fully stir a melt; s3, refining: after the smelting is finished, uniformly spraying a refining agent into a melt by using high-purity argon gas as a carrier, slagging off and covering charcoal after the refining is finished, and finally sampling in front of a furnace and adjusting components until the components are qualified; a specific refining agent and a specific refining process are adopted, inclusions and gas impurities in the melt can be efficiently removed, and the purity of the melt is remarkably improved.

A nickel metal clamp tool includes a nickel crucible, a nickel bottom plate is arranged in the nickel crucibble, side nickel plates are arranged on the side edges of the nickel bottom plate, and inner nickel plates are arranged on the inner edges of the side nickel plates. Thus, the nickel metal clamp tool is formed by the nickel bottom plate, the side nickel plates and the inner nickel plates. Under the action of a certain mechanical force, the smooth nickel bottom plate can form a sealing layer with the lower surface of the wafer, so as to isolate the carbon surface of the wafer from the external environment of the tool, so that the high-temperature molten potassium hydroxide cannot contact the protected carbon surface, and only the exposed silicon surface is corroded, so that the wafer can be used as a seed crystal after corrosion.

The invention belongs to the technical field of electroplating solutions, and particularly relates to a chemical nickel plating solution and a nickel plating method. According to the chemical nickel plating solution, every 1 L of the chemical nickel plating solution comprises 200-300 g of nickel sulfate, 50-100 g of nickel chloride, 40-50 g of boric acid, 0.3-0.6 g of a main brightening agent, 10-15 g of a softening agent, 1-3 g of a wetting agent and a pH adjusting agent, and the dosage of the pH adjusting agent enables the pH of the chemical nickel plating solution to be 3-5; the main light agent is formed by mixing propoxylated butynediol, 1, 4-butynediol, pyridinium hydroxy propyl sulfobetaine and polyethyleneimine according to the mass ratio of (0.5 to 0.7): (0.2 to 0.3): 1: (0.1 to 0.15). According to the chemical nickel plating solution provided by the invention, the adhesive strength and corrosion resistance of a plating layer are improved, and the plating layer is high in brightness.

The present disclosure relates to a nickel plated steel sheet for a battery case having excellent corrosion resistance and a method for manufacturing the same. In one embodiment, the nickel plated steel sheet comprises: a base steel sheet; a nickel plating layer formed on one or more surfaces of the base steel sheet; and a nickel-iron (Ni—Fe) diffusion layer formed between the base steel sheet and the nickel plating layer; wherein the nickel plating layer and the nickel-iron (Ni—Fe) diffusion layer are formed by forming an electro-nickel plating layer on the base steel sheet and an electroless nickel plating layer on at least a portion of the surface of the electro-nickel plating layer, followed by heat treatment, and the nickel plating layer includes one or more co-deposited elements selected from phosphorus (P), boron (B), tungsten (W), cobalt (Co), molybdenum (Mo), and copper (Cu) on its surface.

The application provides a new energy automobile battery copper-nickel plated pole piece and a processing device and method, which comprises the following steps: S1, copper strip pretreatment, the copper strip passes through each pretreatment tank; S2, copper strip nickel plating, the copper strip passes through each nickel plating tank; S2.1, electroplating treatment: the copper strip after water washing is input into a multi-channel electroplating tank, a wave-shaped exhaust plate is additionally arranged in the electroplating tank, and the exhaust plate can exhaust inert gas to form turbulent flow; S2.2, passivation treatment; S2.3, drying treatment; S3, pole piece processing: S3.1, corona treatment; S3.2, coating treatment; S3.3, drying treatment; S3.4, slitting treatment; S4, tank maintenance and copper strip replacement: S4.1, the machine releases a roll of copper strip and then stops; S4.2, the tank maintenance device moves along each tank, the hoisting assembly in the tank maintenance device successively lifts the cover assembly of each tank, and the tank cleaning assembly in the tank maintenance device successively cleans the residues in each tank. The application regularly cleans the tank by the tank maintenance device, reduces impurity pollution, and guarantees the quality of the pole piece.