491 results about "Nickel plate" patented technology

The invention relates to the technical field of composite material processing, in particular to a ply rolling high-temperature plastic flow control method and processing equipment for a nickel steel composite plate, and the processing equipment comprises a ply rolling chamber, a hot rolling mill assembly, an adjusting assembly and a pressure maintaining assembly. An adjusting assembly capable of adjusting the contact area of a plate and the hot rolling mill is arranged on the front portion of the hot rolling mill, line contact between the plate and the hot rolling mill is adjusted into face contact, heating efficiency is improved, and composite production efficiency is guaranteed. Therefore, opposite metal is extruded into a fresh surface formed by interface rubbing through plastic flow, staggered interfaces are further formed, the interface bonding strength is improved, meanwhile, internal stress around extrusion points can be counteracted mutually, the nickel plate and the steel plate cannot generate excessive relative movement, and the service life of the nickel plate and the steel plate is prolonged. And the interface bonding quality of the composite board is ensured.

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 relates to a nickel-ruthenium composite coating plating method for a molybdenum alloy substrate, which is applied to the field of processing and manufacturing of metal-based molybdenum alloy substrates and comprises the following steps: carrying out surface pretreatment on a molybdenum sheet raw material to obtain a net molybdenum sheet; putting the pure molybdenum sheet into vacuum coating equipment, and starting the vacuum coating equipment to vacuumize to form a vacuum system; and vacuum coating equipment is started for heating, a high-temperature system is formed, the surface of the net molybdenum sheet is coated with a physical vapor deposition method, and the molybdenum sheet with nickel plated on the two faces and ruthenium plated on the single face is obtained. The method has the technical effects that a good coating film is formed on the surface of the molybdenum sheet through a vacuum coating method, the method is green and environmentally friendly, harmful substances are reduced, the adhesive force between the coating layer and the molybdenum sheet is high, the film layer is high in purity and good in quality, and the production quality of the molybdenum alloy substrate is improved. Grease, oxides, residual solvents, impurities and the like on the surface of the molybdenum sheet are cleaned through the surface pretreatment step, the surface quality and binding force of the molybdenum sheet are improved, and the connection firmness of the nickel-ruthenium composite coating on the surface of the molybdenum sheet is improved.

The invention discloses a flexible FPC nickel sheet electrical test module and a test machine thereof, the flexible FPC nickel sheet electrical test module comprises a bearing driving assembly and a test assembly, and a support is provided with a first test channel and a second test channel in parallel at an interval; a bearing driving assembly and a testing assembly are arranged in the first testing channel and the second testing channel; the bearing driving assembly is arranged on the bracket; the mounting frame is of a U-shaped frame body structure with a downward opening, and concave mounting sliding grooves of strip-shaped structures are formed in the front side wall and the rear side wall of the mounting frame; the test assembly comprises a test support plate, a floating plate, a test part and a pre-pressing piece. Two-stage flexible connection of floating plate overall flexible support and test probe flexible connection of the test component is adopted, elastic contact between the test probe and the nickel sheet in the process of pressing down to contact the nickel sheet is achieved, bending deformation of the test probe in the pressing down contact process is effectively avoided, the test precision is improved, and the test efficiency is improved. And the test assembly is integrally mounted in a sideslip adjustable manner, so that the mounting position can be accurately adjusted while the detachable mounting is met.

The invention discloses a probe profiling test module of a flexible FPC connector and a test machine thereof, the probe profiling test module comprises a bearing driving assembly, a sleeving assembly and a probe assembly, and the bearing driving assembly is arranged at one end of the bottom of a test mechanism of the test machine; the sleeving assembly is connected to the output end of the bearing driving assembly; the probe assembly is arranged on the outer side of the sleeving assembly and is flexibly connected with the sleeving assembly; the testing machine comprises an alternate feeding platform, an FPC supporting table, a testing driving mechanism and a testing mechanism. Circuit communication between the probes and the nickel sheet and between the probes and the connector is achieved at the same time, limit limiting is conducted on the first probe through the height difference, bending deformation of the first probe is avoided, accurate positioning is conducted on the connector through cooperation of pressing and positioning of the connector and profiling sleeving, the probe assembly is flexibly driven to be connected with the connector in a flexible mode through power during sleeving, and the reliability of the connector is improved. Buffer in the plugging process is realized, the bending deformation condition of the second probe is reduced, real-time continuous pressing in the plugging process is realized, and the electrical connection stability is effectively maintained.

The invention discloses a method for recycling iron phosphate from chemical nickel-plating waste liquid, which belongs to the technical field of industrial wastewater treatment and recycling, and comprises the following steps: S1, chemical nickel-plating waste liquid pretreatment: putting the chemical nickel-plating waste liquid into an electrolytic bath for electrolytic treatment, adding calcium salt into the electrolyzed waste liquid to remove sulfate ions, adding a sodium hydroxide solution to further remove nickel ions to obtain nickel-removed waste liquid; s2, Fenton oxidation: adding hydrogen peroxide and a surface-modified coated nano zero-valent iron Fenton catalyst into the nickel-removed waste liquid, and carrying out Fenton oxidation to obtain iron phosphate precipitate; s3, separating the iron phosphate precipitate from the wastewater; s4, electro-Fenton oxidation: finally, carrying out electro-Fenton oxidation on the cleaning wastewater and the wastewater subjected to filter pressing to obtain iron phosphate precipitate. The efficiency and purity of recovering iron phosphate from the chemical nickel-plating waste liquid are improved, and the problems of low iron phosphate recovery rate and insufficient catalyst stability in the prior art are solved.

The invention discloses a smelting method of a green invar alloy. The smelting method specifically comprises the following steps: adopting an electric arc furnace smelting, LF (ladle furnace) refining and VD (vacuum degassing) oxygen control and nitrogen increase triple smelting process; in the electric arc furnace smelting process, directly reducing iron within 30% is added, and the remaining proportion is scrap steel; in the LF refining process, precious metals such as a nickel plate, ferromolybdenum and ferrovanadium are added for alloying operation; and a gaseous nitrogen increasing process is adopted in the VD smelting process. According to the method, direct reduction iron and waste steel are adopted as raw materials of the electric arc furnace, the carbon emission in the smelting process is greatly reduced, the requirement for environmental protection is met, the gaseous nitrogen increasing technology is adopted in the VD process, precious nitroalloy raw materials do not need to be used, the smelting cost is reduced, energy consumption is reduced, and the steel grade is rich in'green steel 'labels.

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 utility model relates to a nickel sheet laser welding pressure head mechanism, and relates to the technical field of laser welding. The device comprises a rack, a lifting plate and a galvanometer, a lifting assembly is arranged on the rack and connected with the lifting plate so as to drive the lifting plate to be adjusted, the galvanometer is connected to the surface of the lifting plate, a mounting frame is arranged below the lifting plate, and a laser pressing head is arranged at the end, away from the lifting plate, of the mounting plate. The mounting frame is provided with a buffer assembly, the laser pressure head is slidably connected to the mounting frame through the buffer assembly, the lifting plate is further provided with a camera, and the mounting frame is provided with a detection module used for detecting the distance between the nickel sheet and the galvanometer. The nickel plate welding device has the effects that the pressing force on the nickel plate in the welding process is improved, and the welding precision, the welding quality and the welding speed between the nickel plate and the battery aluminum bar are improved.

The invention relates to the technical field of diamond micro-powder processing, and discloses a diamond micro-powder surface nickel plating device based on semiconductor wafer production, the diamond micro-powder surface nickel plating device comprises a reaction tank, an adjustable turbulent flow mechanism and an adjustable stirring mechanism, and further comprises a top cover installed at the top of the reaction tank in a threaded mode, and an adjusting mechanism is fixedly installed at the top of the top cover; a mixer is fixedly mounted at the bottom of the top cover; the adjustable turbulent flow mechanism is composed of two mounting frames, a rotating ring and four angle adjusting assemblies. According to the technical scheme, the adjustable turbulent flow mechanism and the adjustable stirring mechanism are synchronously driven through the adjusting mechanism, the angle of an adjusting paddle in the adjustable stirring mechanism and the angle of a spoiler in the adjustable turbulent flow mechanism are synchronously adjusted according to the requirements of different nickel plating stages, and a multi-dimensional circulating flow field is formed through cooperation of the angle of the paddle and the angle of the spoiler; and the nickel plating requirements of different stages are met, and the dispersity of the diamond micro-powder and the uniformity of a plating layer are ensured.

According to the method for preparing the nanocrystalline nickel foil through the electro-deposition method and the nanocrystalline nickel foil prepared through the method, a nickel plate serves as an anode, a titanium plate serves as a cathode, the anode and the cathode are both placed in electrolyte, and the nanocrystalline nickel foil is prepared on the titanium plate through electro-deposition by adopting a pulse power source; the electrolyte comprises water and the following components by concentration: 300-500g / L of nickel sulfate; 5-15 g / L of nickel chloride; 0.01 to 0.2 g / L of a wetting agent; 20-60 g / L of a buffer agent; 0.05-2 g / L of a brightener; the pH value of the electrolyte is 2-4, and the electro-deposition temperature is 40-60 DEG C; the buffering agent is selected from one or two of citric acid and sodium citrate; and the brightener is selected from one or more of butynediol propoxide, butynediol ethoxylate, sodium sulfopropyne ether, propynol ethoxylate and glycerol monopropyne ether. Based on the method, the problem that in the prior art, the nickel foil prepared through an electro-deposition method is large in fine grain size is solved.

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 invention provides a chemical nickel plating solution with controllable plating speed and phosphorus content. The chemical nickel plating solution comprises the following components in concentration content: 13-28 g / L of main salt, 12-25 g / L of a reducing agent, 3-80 g / L of a composite complexing agent, 4-15 mg / L of a stabilizing agent, 10-30 g / L of a buffering agent and 10-40 mg / L of a wetting agent, the composite complexing agent contains 1-40g / L of amine complexing agent. According to the chemical nickel-plating solution disclosed by the invention, the chemical nickel-plating rate can be controlled and the requirements of different phosphorus contents in a nickel-plating layer can be met by only adopting one basic chemical nickel-plating solution formula by only changing the content of the amine complexing agent, cooperating with the combined action of other substances and simultaneously adaptively adjusting the plating conditions, so that the production process is simplified, and the production cost is reduced. The production cost is reduced, and the application prospect is wide.

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 utility model relates to the technical field of battery assembly, in particular to a battery pack spot welding clamp which comprises two welding clamping plates clamped at the two ends of a battery pack, limiting grooves used for containing nickel sheets and the battery pack are formed in the welding clamping plates, and a plurality of limiting blocks used for positioning the battery pack are arranged in the limiting grooves. Through holes corresponding to the welding holes of the nickel sheets are formed in the bottoms of the limiting grooves, the limiting grooves are formed in the welding clamping plates, then the limiting blocks are arranged, the nickel sheets are arranged in the limiting grooves, then the battery pack is arranged on the nickel sheets in a guiding mode through the limiting blocks, and then the battery pack is clamped by covering another welding clamping plate provided with the nickel sheets. Therefore, relative positioning of the nickel sheets and the battery pack is achieved, accuracy of the welding position is improved, the problem that the welding effect is poor due to the fact that the batteries and the nickel sheets in the battery pack are installed in a staggered mode is solved, and the batteries are connected in series through welding of the nickel sheets to form the battery pack.

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 invention discloses a nickel-copper alloy and a preparation method thereof. The method comprises the following steps: preparing an electrolytic copper plate, a nickel plate and a strengthening phase in proportion; the strengthening phase is put into a smelting furnace to be smelted, and then the electrolytic copper plate and the nickel plate are put into the smelting furnace to be smelted, so that a nickel-copper alloy melt is obtained; adding a reducing agent and a slag former into the nickel-copper alloy melt to purify the nickel-copper alloy melt; inert gas is introduced into the purified nickel-copper alloy melt, and rare earth elements are added into the purified nickel-copper alloy melt; casting the nickel-copper alloy melt added with the rare earth elements to obtain a nickel-copper alloy; and the nickel-copper alloy is subjected to electroslag remelting, and the final nickel-copper alloy is obtained after cooling. The overall performance of the nickel-copper alloy can be improved.

The invention discloses a profiling anode tool for electronickelling and a welding manufacturing method of the profiling anode tool, and belongs to the technical field of aerospace. The profiling anode tool for nickel plating is manufactured through the welding technology, in order to avoid the influence of the tool on a nickel plating layer of a product in the electroplating process, a tool body structure is made of a pure nickel plate, and meanwhile the portion, connected with an electroplating anode, of the tool body structure is made of a pure copper plate so that good conductivity can be guaranteed; therefore, the profiling anode tool relates to welding of homogeneous and heterogeneous materials of the nickel plate and the copper plate. At present, the structure mainly adopts an argon tungsten-arc welding process, copper and nickel can form a low-melting-point eutectic phase with impurity elements during welding, pores and cracks are easily generated, a weld joint is easily invalid under the action of large restraint stress, and the surface of the weld joint is easily oxidized. In order to reduce the problems, the welding process is controlled through surface and groove treatment, reasonable selection of welding wires, welding parameters, gas protection and the like, and the reliability of the welding quality is guaranteed. The method has the characteristics of high practicability and wide application range.

The invention belongs to the technical field of chemical nickel equipment, and particularly relates to a three-dimensional swinging chemical nickel device for semiconductor parts, which comprises an outer groove, an inner groove, a support, a driving mechanism, a lifting mechanism, a transverse moving mechanism, a longitudinal moving mechanism, a swinging frame and a workpiece suspension frame, and the driving mechanism comprises a driving motor, a driving eccentric wheel, an adjusting rod, a linkage rocker and a driving shaft. The lifting mechanism comprises a lifting belt clamping plate assembly, a lifting rod, a lifting guide assembly, a vertical driving frame and a riding wheel assembly. When the driving shaft rotates, the lifting rod drives the swing frame to move up and down. The transverse moving mechanism comprises a linkage eccentric wheel, a linkage driving lever and a transverse cam groove plate, and the linkage driving lever drives the swing frame to move left and right when ascending and descending. The longitudinal moving mechanism comprises a longitudinal cam groove plate, a V seat fixing plate, a longitudinal moving guide rail and a guide rail support, and the V seat fixing plate longitudinally moves relative to the guide rail support. According to the invention, three-dimensional swinging of the workpiece can be realized, and the chemical nickel plating quality of semiconductor parts is improved.

The utility model discloses a bottom plate making mold of a micro-nano optical imprinting plate, which comprises a bottom template, a left mold assembly, a right mold assembly, a front mold assembly, a rear mold assembly and a top mold assembly, and the right mold assembly, the front mold assembly, the left mold assembly and the rear mold assembly are sequentially arranged on the bottom template to define a square mold cavity. The top mold assembly is arranged on the bottom mold plate and can ascend and descend relative to the bottom mold plate, the right mold assembly pushes the front mold assembly to synchronously move towards the left mold assembly side to adjust the length of a square, the left mold assembly drives the front mold assembly to synchronously move towards the rear mold assembly side to adjust the width of the square, and the size of the square can be adjusted through the right mold assembly and the left mold assembly. The plate making mold can be freely adjusted according to the size of a nickel plate, after the size is adjusted, the top mold assembly is controlled to descend to be tightly attached to the top faces of the right mold assembly, the front mold assembly, the left mold assembly and the rear mold assembly, then resin is injected to form a bottom plate, and therefore the size of a mold cavity used for forming can be adjusted according to needs, and the universality of the plate making mold is improved; and the plate making cost is reduced.

The invention relates to the technical field of metal materials, and discloses a high-purity hafnium-nickel alloy and a preparation method thereof.According to the high-purity hafnium-nickel alloy, the vacuum electron beam horizontal furnace smelting technology is adopted, and the cost is reduced by controlling the purity of raw materials and smelting parameters, so that the high-purity hafnium-nickel alloy is prepared. Sponge hafnium with the purity of 96% and a nickel plate with the purity of 99.99% which meet the YS / T399-2013 standard are selected as raw materials of the alloy, an electron beam horizontal furnace with the vacuum degree better than 10 <-3 > Pa is adopted for smelting, the overheating temperature is high during smelting, the liquid state maintaining time is long, the refining and purifying process of the material is fully and effectively carried out, and meanwhile, the alloy has the advantages of being high in mechanical strength, high in mechanical strength and good in mechanical property. The main processes of degassing, decomposition, deoxidation, volatilization of metal impurities and floating of infusible impurities of the materials in the smelting process are fully carried out in the high-vacuum environment, and therefore the high-purity hafnium-nickel alloy with the purity being 99.9% or above can be directly prepared with low cost through sponge hafnium with low cost.

The present invention discloses a plate shearing machine and an anti-leakage oil pressing device and a plate pressing method, comprising a pressing beam, both ends of the pressing beam are equipped with pressing devices, two sets of pressing devices each include a pressing oil cylinder driving the pressing beam downward, an eccentric side guide wheel guiding the pressing beam when it moves, and a pressing beam return cylinder driving the pressing beam upward, and a plurality of sets of pressing components for pressing the plate are installed at the bottom of the pressing beam. The pressing beam return cylinder, the pressing oil cylinder piston rod and the pressing beam are all non-rigidly connected. That is, the pressing beam and the pressing cylinder are redesigned to completely avoid the pollution of the processed plate and the work surface caused by oil leakage, so that when the plate shearing machine shears special materials (nickel plate, copper plate), it can avoid the pollution of the plate caused by hydraulic oil leakage and does not affect the shearing quality.

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 the technical field of vacuum brazing, and in particular to a brazing process for a stainless steel tube shell and a Kovar alloy in a medical CT tube, comprising the following steps: S1, surface treatment of the Kovar alloy: nickel plating on the surface of the Kovar alloy; S2, assembling the stainless steel tube shell and the Kovar alloy; S3, vacuum brazing. The method of the invention comprehensively considers factors such as the surface treatment of the Kovar alloy, the selection of brazing material, the control of the assembly gap and the vacuum environment to ensure the quality and reliability of the welded joint, and solves the problem of poor welding between the stainless steel tube shell and the Kovar alloy in the prior art.

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.