31 results about "Monel" patented technology

The present invention relates to the technical field of superconducting materials. Disclosed are a MgB2 superconducting wire and a preparation method therefor. The preparation method comprises: melting Mg, Cu and Ti to obtain a Mg alloy ingot, processing the Mg alloy ingot to obtain a Mg alloy rod, loading the Mg alloy rod and B powder into a Nb tube to obtain a composite rod, processing the composite rod to obtain a single-core wire, loading the single-core wire into an oxygen-free copper tube, then loading into a monel tube in a densely-packed manner, and performing cold-forming treatment to obtain a multi-core composite wire; and performing high-temperature phase-forming heat treatment on the multi-core composite wire to prepare the MgB2 superconducting wire. In the present application, the Mg alloy rod containing Cu and Ti metal elements is used as a Mg source for preparing a MgB2 multi-core wire, so as to improve the plastic deformation ability of the Mg alloy rod in the wire treatment processes, and improve the grain boundary coupling, thereby improving the current carrying performance of the MgB2 superconducting wire.

Herein discussed is a heat management system comprising a pipe and a static auger inside the pipe, wherein the pipe has an inner diameter of d, wherein the auger has an outer diameter D and a pitch P, wherein the ratio of D / P is no less than 1, and wherein the auger outer diameter D is no less than 90% of the pipe inner diameter d. In an embodiment, the ratio of D / P is in the range of 2-10, or 2-5, or 2-4, or 5-10. In an embodiment, the pipe is made from stainless steel, carbon steel, Monel, Inconel, Incoloy, Hastelloy, ceramics, silicon carbide, alumina, and combinations thereof. In an embodiment, the system comprises a fluid passing through the pipe, wherein the pipe heats or cools the fluid.

The utility model relates to a high temperature and high pressure resistant submersible cable. According to the technical scheme, a sintered polyimide film inner insulating layer is wrapped outside a copper conductor, a modified high-temperature-resistant fluoroplastic outer insulating layer is extruded outside the polyimide film inner insulating layer, an inorganic heat-insulating cushion layer is wrapped outside the modified high-temperature-resistant fluoroplastic outer insulating layer, a nickel-based alloy steel pipe packaging sheath layer is wrapped outside the inorganic heat-insulating layer, and the nickel-based alloy steel pipe packaging sheath layer is wrapped outside the nickel-based alloy steel pipe packaging sheath layer. And the nickel-based alloy steel strip armoring layer is armoured outside the nickel-based alloy steel pipe packaging sheath layer. The beneficial effects of the utility model are that the cable employs modified ECA fluoroplastic resin and can continuously work at a static high temperature of 350 DEG C, the monel nickel-based alloy steel belt is employed to perform Z-shaped corrugated profiling and wrapping and armoring in an interlocking manner, the formed nickel-based alloy steel belt armoring layer can resist high pressure of more than 40 Mpa, and the cable can be used as a high-voltage cable. The electric energy supply of the submersible unit in the high-temperature, high-pressure and high-corrosion underground environment is fully guaranteed, and the oil extraction efficiency is greatly 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 discloses a hot drawing preparation method of a high-temperature superconducting MgB2 wire based on center MgLi diffusion, which comprises the following steps of: 1, placing an Nb tube in a Cu tube, placing an MgLi alloy rod in the Nb tube, filling carbon-coated B powder or B powder between the MgLi alloy rod and the Nb tube, and carrying out cold rotary swaging to obtain a single-core complex; secondly, head rotating, outer layer graphite coating and hot drawing are sequentially carried out, and a single-core composite round wire is obtained; thirdly, the single-core composite round wires are bundled and assembled in a Monel alloy sheath, and cold rotary swaging, outer-layer graphite coating and hot drawing are carried out; and 4, performing vacuum heat treatment to obtain the high-temperature superconducting MgB2 wire rod. According to the method, the MgLi alloy rod serves as the center and is combined with the Nb pipe, the Cu pipe and the B powder to obtain the single-core complex, the excellent hot working capacity is obtained through hot drawing, cold rotary swaging and other treatment, the uniformity of synergistic deformation is improved, and the method is suitable for the technical field of superconducting wire preparation and machining.

This application provides an online detection and grinding method for edge defects in Monel alloy slabs, relating to the field of alloy plate quality inspection technology. The method includes the following steps: upon receiving a detection command, simultaneously sending scanning and acquisition signals; acquiring a set of temperature fields along the laser spot's movement trajectory, including the coordinates of multiple detection laser spots and the cooling process sequence corresponding to each laser spot coordinate on the slab edge, including the process temperature at multiple sampling moments starting from the instant the laser is turned off; obtaining a cooling rate characteristic value corresponding to each laser spot coordinate based on the cooling process sequence; identifying the points on the slab edge corresponding to laser spot coordinates with cooling rate characteristic values ​​less than a first preset threshold as first defect points; and obtaining a target grinding path based on all first defect points, and controlling the grinding device to grind the slab edge along the target grinding path. This is a highly efficient, accurate, and automated integrated solution for online detection and grinding.

The invention provides a preparation method of a nickel-copper alloy. The preparation method comprises the following steps: preparing materials; the method comprises the following steps: firstly, filling part of C and Ni into a vacuum induction furnace, vacuumizing, starting to supply power for melting, and then adding C and Ni in multiple batches and small batches until C and Ni are completely melted; performing refining; al and Ti are added to complete alloying; then Cu is added under the argon atmosphere, and alloying is completed; and vacuum pouring is conducted, and the nickel-copper alloy is obtained. By means of the method, the ultra-pure Monel K-500 alloy ingot can be prepared, meanwhile, the high metal yield is obtained, and efficient utilization of alloy elements is achieved. Results show that the content of N in the alloy ingot is less than 15 ppm, the content of H is less than 3 ppm, the content of O is less than 7 ppm, and the yield of Cu is greater than 98%.

The invention belongs to the technical field of uranium conversion production processes, and particularly relates to a vertical fluorination reactor protection device which comprises a reactor body, connecting flanges welded to the two ends of the reactor body and connecting plates installed on the sides, away from the reactor body, of the connecting flanges through bolts. The protective assembly is mounted between the connecting flange and the connecting plate; the protection assembly is arranged, the Monel webs are arranged between the connecting flange and the connecting plate, the Monel webs are connected through the fixing plate, the weakest mortise and tenon joint structure of the connecting flange is provided with the Monel webs, the production cost is greatly saved, the corrosion rate of the furnace body connecting flange is reduced, and the service life of the furnace body connecting flange is prolonged. The maintenance frequency is reduced, the manual maintenance workload is reduced, the irradiation receiving time of maintenance personnel in a production field is effectively shortened, and meanwhile secondary pollution to the environment during maintenance is reduced.

The invention discloses a heat treatment method of an Nb / Monel-based MgB2 multi-core wire. The method comprises the following steps: 1, mixing and grinding Mg powder and B powder to obtain blended powder; 2, loading the blended powder into a niobium tube to obtain a powder loading body; 3, carrying out rotary swaging processing on the powder to obtain a single core wire; 4, processing the single-core wire, bundling the single-core wire with a copper rod, loading the bundled single-core wire and the copper rod into a Monel tube, and carrying out rotary swaging and drawing to obtain a multi-core wire; 5, winding the multi-core wire into a solenoid, wrapping the solenoid in a carbon foil, heating to a first platform temperature, and keeping the temperature; and 6, raising the temperature to a second platform temperature, and carrying out heat preservation to obtain the MgB2 superconducting wire. Through heat treatment of a two-stage gradient heat preservation process, a high-density dislocation network can be formed in the MgB2 phase forming process, the MgB2 multi-core superconducting wire which is densified, refined in grain and obviously increased in pinning center is prepared on the premise that the process is greatly simplified, and the method is suitable for the field of superconducting materials.

The invention provides a Monel alloy plate blank edge defect online detection and coping method, and relates to the technical field of alloy plate quality detection, and the method comprises the following steps: receiving a detection instruction, and synchronously sending a scanning signal and an acquisition signal; a temperature field set on the light spot moving track is obtained, the temperature field set comprises light spot coordinates of a plurality of detection light spots and a cooling process sequence corresponding to each light spot coordinate of the edge of the plate blank, and the cooling process sequence comprises process temperatures at a plurality of sampling moments starting from the moment of laser closing; according to the cooling process sequence corresponding to each light spot coordinate, obtaining a cooling rate characteristic value corresponding to each light spot coordinate; taking a point position of the edge part of the plate blank corresponding to the light spot coordinate of which the cooling rate characteristic value is smaller than a first preset threshold value as a first defect point position; and based on all the first defect point positions, a target grinding path is obtained, and the grinding device is controlled to grind the edge of the plate blank according to the target grinding path. The invention provides an efficient, accurate and automatic online detection and coping integrated solution.

The invention provides a jacket Monel plate installation gap adjusting device, and relates to the technical field of offshore oil engineering jacket installation. The handle is connected with the bandage connecting piece through a rotating mechanism; the pressing structure is arranged at the bottom of the bandage connecting piece and used for flattening the monel plates on the two sides of the gap. The operation handle is used for controlling the pressing plate to press the monel plates on the two sides of the welding seam, then the butt joint gap between the monel plates on the two sides of the welding seam is adjusted, assembly welding is facilitated through the structure, the operation principle of the device is similar to that of a lever, and lifting can be facilitated by arranging the rotating mechanism and the handle; by means of the monel plate gap adjusting device, the monel plates can be rapidly adjusted and flattened, the monel plates can be fixed through binding bands, and base material damage caused by temporary spot welding in a welding type tool is avoided.

This invention discloses a welding method for Monel alloy rotor supports. First, an arc-shaped groove is carved into the support plate to be welded. Then, positioning fixtures are used to ensure the axial and radial dimensions of the support plate and the main shaft during welding. The first support plate is welded using argon arc welding at the bevel of the groove surface, followed by grinding on the reverse side and then grinding on the front side before continuing welding. Argon gas protection is used throughout the process. After stabilizing the weld, carbon dioxide shielded welding is used to create the weld surface before welding the next support plate. Finally, the weld is inspected using dye penetrant testing and ultrasonic testing. This welding method is suitable for welding rotor supports made of low-magnetic Monel alloy materials, avoiding or reducing deformation and fracture caused by welding, preventing a decrease in overall structural strength due to incomplete penetration, and ensuring the accurate dimensions of the welded rotor support.

The utility model belongs to the technical field of heat exchangers, and particularly relates to an anti-corrosion seawater heat exchanger which comprises a seawater fluid mechanism. The seawater fluid mechanism comprises a fluid inlet pipe, a fluid outlet pipe is fixedly mounted at the bottom of the fluid inlet pipe, and a conversion pipe is fixedly connected into the fluid inlet pipe and the fluid outlet pipe; through the arrangement of the seawater fluid mechanism, seawater needing to be subjected to heat exchange is conveniently introduced, the seawater fluid mechanism is used for directly making contact with the seawater, the epoxy resin coating is arranged on the surface, making direct contact with the seawater, of the inner side of the seawater fluid mechanism, and the corrosion resistance of seawater side metal can be enhanced; the seawater fluid mechanism is made of a monel alloy layer, the material can further enhance the seawater corrosion resistance of the whole mechanism, the outer side of the seawater fluid mechanism is covered with a carbon steel layer, the material has the corrosion resistance and high rigidity, and the strength and stability of the whole mechanism can be guaranteed.

The present invention belongs to the technical field of superconducting materials and discloses a MgB2 superconducting wire and a preparation method thereof. The preparation method comprises: obtaining an Mg alloy ingot from Mg, Cu, and Ti through a smelting process; processing the Mg alloy ingot to obtain an Mg alloy rod; loading the Mg alloy rod and B powder into an Nb tube to obtain a composite rod; processing the composite rod to obtain a single-core wire; loading the single-core wire into an oxygen-free copper tube, which is then densely packed into a monel alloy tube; and cold-forming the composite rod to obtain a multi-core composite wire; and subjecting the multi-core composite wire to a high-temperature phase-forming heat treatment to obtain the MgB2 superconducting wire. This application utilizes an Mg alloy rod containing Cu and Ti metal elements as the Mg source for preparing the MgB2 multi-core wire, thereby improving the plastic deformation ability of the Mg alloy rod during wire processing and increasing the grain boundary coupling, thereby enhancing the current-carrying performance of the MgB2 superconducting wire.

The invention belongs to the technical field of superconducting materials, and discloses a high-performance MgB2 superconducting wire and a preparation method thereof. The method comprises the following steps: uniformly mixing nano Mg alloy powder and B powder in an inert gas atmosphere according to the atomic number ratio of Mg to B being 1: 2; then compounding the high-purity Nb rod, the CuNi alloy pipe and the anaerobic Cu pipe into an Nb / CuNi / Cu alloy rod, processing a deep hole, and filling mixed powder to prepare a single core wire; and then assembling the single-core wire into a Monel alloy tube, processing the single-core wire into a multi-core composite wire, and performing high-temperature phase forming heat treatment to obtain the high-performance MgB2 superconducting wire. Metal boride can be generated by metal elements in the adopted nano Mg alloy powder, CuNi alloy has constraining force and barrier effects, and finally MgB2 grains of the wire are refined, the connectivity between the grains is improved, and the current-carrying performance is improved.

The invention belongs to the technical field of corrosion-resistant alloy hot extrusion machining, and discloses a Monel alloy hot extrusion pipe and a preparation method thereof.The preparation method comprises the steps that blank pretreatment is conducted, specifically, the surface of a blank is machined to the required specification; heating in an annular furnace: heating the pretreated blank in the annular furnace, and sequentially carrying out preheating, heating and soaking treatment; primary induction furnace heating; carrying out first induction furnace heating on the blank heated by the annular furnace; the inner surface and the outer surface of the blank heated by the induction furnace for the first time are coated with a proper amount of uniform glass powder to serve as a lubricating agent, and broaching is conducted to the target specification; heating the blank by a secondary induction furnace; carrying out secondary induction furnace heating on the broached blank; and extrusion: coating a proper amount of uniform glass powder on the inner surface and the outer surface of the blank heated by the induction furnace for the second time as a lubricant, extruding by adopting an extrusion process, and cooling by water. The Monel 400 alloy hot extrusion seamless pipe prepared by the method is good in surface quality, uniform in structure and excellent in performance.

The invention provides an anti-corrosion current collector and a preparation method and application thereof, and belongs to the technical field of new energy materials, the anti-corrosion current collector comprises a conductive base layer and a plurality of Montain alloy particles, the Montain alloy particles are embedded in the surfaces of the two sides of the conductive base layer, the particle size of each Montain alloy particle is 2-200 nm, and the particle size of each Montain alloy particle is 2-200 nm. And the ratio of the embedding depth of the Montain alloy particles to the thickness of the conductive base layer is (1-100): (1500-2500). According to the current collector, the Montain alloy particles subjected to magnetron sputtering can be inlaid on the surface of the Cu conductive base layer by utilizing a hot pressing process, so that the Montain alloy particles and the conductive base layer are in closer contact, and meanwhile, the conductivity and the mechanical strength of the current collector can be improved.

The utility model discloses a square cabin with high electromagnetic shielding effectiveness. Conductive shielding cloth is adhered to the inner surface of each cabin plate of the square cabin; a metal gasket is arranged between the window and the cabin plate, and the metal gasket comprises silver-plated brass and a monel alloy woven wire mesh which are stacked in the direction from the cabin plate to the window; sealing grooves are formed in the door opening frame and the door frame of the cabin door, shielding sealing strips are filled in the sealing grooves, and each shielding sealing strip comprises a rubber core and a tin-plated phosphor bronze wire mesh wrapping the rubber core. On the basis that an original shelter structure is not changed or damaged, shielding effectiveness treatment is conducted on the assembling and matching positions of doors and windows of the shelter in a targeted mode, and therefore the overall shielding effectiveness of the shelter is improved.

The utility model relates to the technical field of Monel alloy vacuum melting feeding, and discloses Monel alloy vacuum melting feeding equipment which comprises a feeding mechanism, a conveying mechanism and a smelting furnace mechanism, the feeding mechanism is located on the right side of the conveying mechanism, the smelting furnace mechanism is located on the left side of the conveying mechanism, and the feeding mechanism comprises a machine base. One side of the machine base is fixedly connected with a first supporting plate top seat, the bottom of the first supporting plate top seat is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a threaded rod, the outer wall of the threaded rod is in threaded connection with a sliding block, and one end of the threaded rod is rotationally connected with a first supporting plate base. The threaded rod penetrates through the top of the sliding block and extends to one side of the first supporting plate base, the first motor is started to drive the second fixing plate on the sliding block and the material base to move upwards, the second motor is started to drive the material base to rotate, in this way, the working efficiency of feeding can be improved, and the labor cost is reduced.

The application provides a monolayer graphene single crystal copper wire material and a preparation method thereof. A vertical roll-to-roll technology is used to fasten the copper wire to a winding shaft of a lower unwinding chamber, so that the starting end of the copper wire passes through a tubular furnace body from bottom to top and is fixed to a winding shaft of an upper winding chamber, a tension in a specific range is applied at a winding end, the winding speed is 10 mm / min-100 mm / min, a specific temperature gradient is applied along the running direction of the copper wire, the growth of the copper single crystal grains is promoted, carbon source gas is introduced into the chamber, the growth of graphene on the surface of the copper wire is carried out through a chemical vapor deposition method, and the monolayer graphene single crystal copper wire material is obtained after continuous growth. In the process, the single crystallization of the copper wire and the coating of graphene on the surface of the copper wire are simultaneously realized, and the conductivity of the prepared monolayer graphene single crystal copper wire material is greatly improved compared with that of the original copper wire.

Bi-layer barrier assemblies for iron-based superconductor (IBS) and associated sheathed wire fabrication methods employ insulating material to prevent interdiffusion between inner silver (Ag) and outer matrix components at heat treatments. A superconductor assembly comprises a core IBS material (e.g., mono-filamentary or multi-filamentary IBS powder) layered, in turn, with an AG barrier material, an insulating barrier material (e.g., niobium (Nb), tantalum (Ta), and / or a Nb—Ta alloy); and a matrix material (e.g., copper (Cu), Cu alloy, and / or monel). Assembly comprises 1) packing the IBS material into the Ag sheath (barrier) material, defining a packed first assembly; 2) layering the insulating barrier material upon the Ag sheath material, defining an insulated second assembly; and 3) layering the matrix material upon the insulating material, defining a matrixed third assembly. Additional steps may comprise respective drawing of the packed first assembly, the insulated second assembly, and / or the matrixed third assembly, and / or stacking for multi-filamentary implementations.

The invention discloses a method for preparing 3-pentafluoroethyl-4-trifluoromethyl-dodecafluorohexane through electrolytic fluorination of a hexafluoropropylene tripolymer, and relates to the field of organic fluorine chemistry. According to the method, anhydrous hydrogen fluoride is adopted as a solvent and a fluorine source, electrolytic fluorination is carried out in a nickel or monel alloy electrolytic bath, the fluorination selectivity is improved by optimizing the current density, the voltage, the temperature and the reaction time, generation of by-products is reduced, and a target product is purified through rectification. The method is stable in process, high in controllability and suitable for industrial production.

The invention discloses a welding process for surfacing a Monel welding wire on the surface of low alloy steel, and belongs to the field of hot wire TIG surfacing. The invention aims to solve the problem that welding slag is easy to generate when a Monel welding wire is subjected to surfacing on low-alloy pressure vessel steel. According to the method, a hot wire TIG welding method is used, welding is conducted in the vertical upper welding direction, pure nickel metal is selected as a transition layer material between low-alloy pressure vessel steel and a Monel cladding layer, accurate control over the interlayer temperature is achieved by effectively controlling welding process parameters and accurately adjusting welding heat input, and the welding quality is improved. A Ni-Fe system is formed between the pure nickel welding wire and the low-alloy pressure vessel steel, and the pure nickel welding wire and the low-alloy pressure vessel steel have good intersolubility and compatibility; and the Fe content is low, so that the problem of incompatibility of Fe and Cu is effectively avoided, and low-melting-point eutectic substances which are easy to cause welding slag are not easy to generate. And meanwhile, the viscosity, surface tension and fluidity of the molten pool are more uniform and controllable, stable escape of gas and impurities is facilitated, and the slag inclusion tendency is reduced. The overall metallurgical reaction is stable, and welding slag is eliminated.

This invention discloses a method for preparing 3-pentafluoroethyl-4-trifluoromethyl-dodecylhexane by electrolytic fluorination of hexafluoropropylene trimer, relating to the field of organofluorine chemistry. This method uses anhydrous hydrogen fluoride as both solvent and fluorine source, and performs electrolytic fluorination in a nickel or Monel alloy electrolytic cell. By optimizing the current density, voltage, temperature, and reaction time, the fluorination selectivity is improved, the formation of byproducts is reduced, and the target product is purified by distillation. This method is stable, highly controllable, and suitable for industrial production.

The application belongs to the technical field of superconducting materials, and discloses a high-performance MgB2 superconducting wire and a preparation method thereof. The method comprises the following steps: firstly, uniformly mixing nano-Mg alloy powder and B powder in an inert gas atmosphere according to an atomic number ratio of Mg:B=1:2; secondly, compounding a high-purity Nb rod, a CuNi alloy tube and an oxygen-free Cu tube into an Nb / CuNi / Cu alloy rod, processing deep holes, and then making a single-core wire by loading the mixed powder; thirdly, assembling the single-core wire into a Monel alloy tube, processing into a multi-core composite wire, and obtaining the high-performance MgB2 superconducting wire through high-temperature phase formation heat treatment. The metal elements in the nano-Mg alloy powder can generate metal borides, and the CuNi alloy has both constraint and barrier effects, so that the MgB2 grains of the wire are refined, the connectivity between the grains is improved, and the current-carrying performance is improved.

A solid oxide fuel cell (SOFC) system included high thermal conductivity materials such as copper to increase thermal energy transfer by thermal conduction. The copper is protected from oxidation by nickel electroplating and protected from thermal damage by providing Hastelloy liners inside combustion chambers. Monel elements are used in the incoming air conduits to prevent cathode poisoning.

The utility model discloses a kind of for measuring monel alloy corrosion depth's ultrasonic detector, it is related to monel alloy measurement technical field, including first adjusting frame, second adjusting frame and detection component, the top vertical connection of first adjusting frame is equipped with second adjusting frame, the detection component is connected in one side of second adjusting frame.The utility model can effectively reduce the influence of external vibration on detection accuracy in the measurement process by setting first adjusting frame, moving platform is driven first screw rod to realize horizontal displacement by first servo motor, by setting second adjusting frame, lifting frame is accurately vertically moved along second screw rod under the drive of second servo motor, and the three-dimensional space adjusting system is formed by the cooperation of the two, so that detection component can accurately cover alloy surface any corrosion area, and the ultrasonic detection main body of detection component is realized angle fine adjustment by ratchet shaft.

According to the monel K500 alloy and the preparation method of the large annular forge piece of the monel K500 alloy, the components of the monel K500 alloy comprise Ti, Cu, Al and other elements and have high corrosion resistance, and meanwhile the mechanical property of the alloy is improved through reasonable alloy component design, the heating process and the heat treatment process. The preparation method comprises the steps of selecting a proper steel ingot, carrying out primary heating, manufacturing a ring blank, heating the ring blank and carrying out ring rolling to finally obtain the Monel K500 large annular forge piece meeting the technical requirements, the heating temperature, the heating curve and the aging treatment conditions are optimized, the grain size of the forge piece is effectively controlled, and the yield of the forge piece is improved. The problem of coarse grains possibly occurring in the traditional manufacturing process is solved; according to the technical scheme, through reasonable process design and component control, the comprehensive performance of the Monel K500 alloy and the annular forge piece thereof is improved, the problems that in the prior art, the performance is not uniform, and the machining difficulty is large are solved, and wide industrial application prospects are achieved.

The invention relates to a preparation method of fluoromethane, which comprises the following steps: preheating a micro-channel reactor, and carrying out catalytic reaction on chloromethane and anhydrous hydrogen fluoride in the micro-channel reactor by using a catalyst under the conditions that the temperature is 450-500 DEG C and the retention time is 10-30 seconds. The diameter of the micro-channel reactor is 0.5-2mm, the micro-channel reactor is made of a monel or nickel material, the length-diameter ratio of the micro-channel reactor is greater than or equal to 10: 1, and the number of the micro-channel reactor block groups is 5-10. The hydrogen fluoride conversion rate per pass is improved, and the content of raw material accumulation byproducts is reduced.

The utility model relates to the related technical field of high-temperature-resistant corrugated pipes, in particular to a monel 400 material high-temperature-resistant corrugated pipe which comprises a pipe connecting end, a sealing plate, a nickel-copper alloy corrugated pipe and a sealing assembly, the sealing end of the pipe connecting end is fixedly connected with the sealing plate, the nickel-copper alloy corrugated pipe is arranged at the installation position of the sealing plate, and the sealing assembly is fixedly connected with the nickel-copper alloy corrugated pipe. According to the high-temperature-resistant corrugated pipe, the built-in nickel-copper alloy pipe and the nickel-copper alloy corrugated pipe are of a double-layer structure, after the nickel-copper alloy corrugated pipe is abraded, the built-in nickel-copper alloy pipe can still have the high-temperature-resistant effect, and due to the double-layer built-in nickel-copper alloy pipe and the double-layer nickel-copper alloy corrugated pipe, the abrasion resistance of materials adopted by the high-temperature-resistant corrugated pipe can be improved; high-temperature-resistant sealing can still be conducted after abrasion in the application field, the high-temperature-resistant degree of the high-temperature-resistant corrugated pipe can be improved through the built-in nickel-copper alloy pipe and the nickel-copper alloy corrugated pipe, the number of times of regular replacement is reduced, and the replacement cost of the high-temperature-resistant corrugated pipe is reduced.