82 results about "Vacuum casting" patented technology

The invention relates to a control method for increasing the boron content in a forge piece through double-vacuum smelting of 2.25 Cr1Mo0.25 V steel, belongs to the technical field of smelting, and solves at least one of the problems that in an existing 2.25 Cr1Mo0.25 V steel smelting process, the boron content cannot reach the effective effect content, the boron content fluctuation between heat times is large, and an existing boron control process is incompatible with a 2.25 Cr1Mo0.25 V steel double-vacuum process. A control method for improving the boron content in a forge piece through double vacuum smelting of 2.25 Cr1Mo0.25 V steel comprises the steps that vacuum carbon deoxidation refining is conducted, specifically, slagging, diffusion deoxidation, alloying, vacuum treatment, component fine adjustment and soft blowing are conducted on molten steel, and key element adding is conducted; and the vacuum casting comprises preparation before casting and vacuum casting protection. According to the method, the effective boron content is increased, the boron content fluctuation among the heats is reduced, and the process compatibility is good.

The invention relates to an epoxy resin pouring type transformer with built-in microcirculation cooling channels and a heat dissipation method of the epoxy resin pouring type transformer, and belongs to the technical field of power transformers. The epoxy resin pouring type transformer comprises an iron core, a low-voltage winding, a high-voltage winding and a heat dissipation shell, the low-voltage winding and the high-voltage winding are completely impregnated and wrapped by an epoxy resin composite material through a vacuum pouring process, an integrated epoxy resin pouring body is formed after curing, and a three-dimensional communicated bionic microcirculation cooling channel network is arranged in the epoxy resin pouring body; the heat dissipation shell is in close contact with the outer surface of the epoxy resin pouring body through the high-heat-conductivity insulating medium. According to the invention, the heat dissipation efficiency can be remarkably improved, and a cooling medium (air) is directly guided to a microscopic area around the winding conductor through a three-dimensional communicated and tree-shaped fractal bionic microcirculation cooling channel network, so that the effective heat exchange area and the heat exchange strength are greatly increased, and internal heat can be accurately and efficiently taken away.

The utility model discloses a sand filling device for V-process casting, which belongs to the technical field of vacuum casting and is characterized in that a swing frame is movably mounted at the top of a base, a swing motor is mounted on the inner wall of the base, and a half gear intermittently meshed with a toothed plate is mounted at the output end of the swing motor; a sand box is installed in the swing frame, an inserting plate is movably installed on one side of the swing frame, and a positioning air cylinder is installed on the outer wall of the inserting plate. The output end of the adjusting motor is connected with a threaded rod; a moving frame located above the swing frame is arranged between the threaded rods in a threaded mode, a compaction air cylinder is installed at the top of the moving frame, and an extrusion plate is arranged at the output end of the compaction air cylinder. According to the utility model, the swinging frame can be driven to reciprocate relative to the top of the base, so that the sand box vibrates regularly. The sand box can be fixed through the detachable inserting plate and the positioning air cylinder, so that the requirement for sand boxes of different specifications is met, the motor is adjusted to drive the moving frame to reciprocate along the swing frame, filling sand is compacted, and the practicability and the freedom degree are improved through the design.

The utility model belongs to the field of voltage transformers, and particularly relates to an outdoor secondary cast aluminum junction box single-phase voltage transformer. A secondary connecting terminal is arranged at the bottom of the side wall of a shell; a cast aluminum junction box is arranged at the bottom of the side wall of the shell; the secondary connection terminal is led out from the cast aluminum junction box, and the cast aluminum junction box is connected with the shell through a cast aluminum junction box fixing bolt. And the shell is formed by vacuum casting of outdoor epoxy resin. A fully-closed and fully-insulated structure is adopted, shielding treatment is carried out inside the structure, and the primary coil, the secondary coil and the iron core are packaged inside the shell. The voltage transformer is simple in structure, easy to install, good in safety, high in secondary protection level, low in material consumption and low in equipment cost, the safety of the voltage transformer is improved, the protection level can reach IP55, and the partial discharge level meets the international requirement.

The invention discloses a Ni-Mo-Ti alloy reinforced by an ordered D0a / disordered HCP composite structure, which is characterized in that the element percentage composition expression of the Ni-Mo-Ti alloy is (Ni80 + yMo20-y) 100-xTix, x is greater than or equal to 1 and less than or equal to 10, y is greater than or equal to-5 and less than or equal to 5; the microstructure of the Ni-Mo-Ti alloy comprises a face-centered cubic FCC matrix and a strengthening phase embedded in the face-centered cubic FCC matrix, and the strengthening phase is a layered phase formed by compounding an ordered D0a area and a disordered HCP area. The invention further provides a preparation method of the Ni-Mo-Ti alloy reinforced by the ordered D0a / disordered HCP composite structure. The preparation method comprises the following steps of vacuum melting and vacuum casting; carrying out homogenization treatment; multi-pass rolling is conducted at the room temperature, the pass rolling amount is 2%-6%, and the total rolling amount is 60%-90%; and annealing heat treatment is conducted, specifically, the temperature of annealing heat treatment ranges from 910 DEG C to 1150 DEG C, and the time ranges from 1.5 min to 120 min. According to the Ni-Mo-Ti alloy strengthened by the ordered D0a / disordered HCP composite structure and the preparation method of the Ni-Mo-Ti alloy, through the strengthening effect of the ordered D0a and disordered HCP composite layer, the alloy material has ultrahigh strength and high plasticity at the same time, and the comprehensive mechanical property of the alloy material is improved.

This invention relates to a method for producing support roll steel, belonging to the field of metallurgical industry, and solves the problems of high cost and severe shrinkage porosity in existing support roll steel. The method for producing support roll steel includes: smelting, deoxidizing, desulfurizing, and refining the support roll steel ingot raw material, adjusting the alloy composition to obtain a first portion of support roll steel molten steel, tapping the steel, vacuum casting, and solidifying to obtain a solidified billet shell and liquid steel inside the billet shell; smelting, deoxidizing, desulfurizing, and refining the support roll steel ingot raw material, adjusting the alloy composition to obtain a second portion of support roll steel molten steel, tapping the steel, mixing the second portion of support roll steel molten steel with the liquid steel inside the billet shell within the solidified billet shell of the first portion of support roll steel, vacuum casting, solidifying to obtain a complete support roll steel ingot, demolding, removing the sprue, forging, removing the riser, heat treating, and machining to obtain the support roll steel; the composition of the first portion of support roll steel and the second portion of support roll steel molten steel differs.

The system comprises a mounting frame, a circulating water tank is mounted on the mounting frame, a plurality of casting molds are arranged in the circulating water tank at equal intervals, the upper ends of the casting molds penetrate out of a top plate of the circulating water tank, and cover plates are arranged at the top ends of the casting molds; a casting opening is formed in the cover plate and is connected with the melting and mixing pot through a casting pipeline; a first negative pressure suction opening is formed in the bottom of the casting mold and communicates with a first negative pressure pipeline through a first suction pipeline, and the negative pressure suction pipeline is connected with a first vacuum pump. According to the system, the melting and mixing mechanism, the vacuum suction mechanism, the casting mold and the circulating water tank solidification mechanism are integrated, and integrated melting and mixing, negative pressure casting and solidification of materials can be achieved; the negative pressure automatic adjusting vacuum pump is adopted, stable vacuum negative pressure can be formed, and the vacuumizing speed is high.

1. The name of the design product: gypsum vacuum casting integrated machine. 2. The use of the design product: for jewelry lost wax casting integrated machine. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view. 5. The design product is not common from the bottom view, so the bottom view is omitted.

The application discloses a sealing assembly and a vacuum casting mold, relates to the technical field of vacuum die casting mold sealing, and aims to solve the problem of reduced service life of the existing sealing assembly caused by secondary pressure effect during the injection stage. The sealing assembly comprises an annular groove formed on a first parting surface of a fixed mold and an elastic sealing body fixedly installed in the annular groove, a rigid protection structure is fixedly sleeved on the outer surface of the elastic sealing body, and the working end face of the rigid protection structure is flush with a second parting surface. The rigid protection structure directly bears the secondary pressure formed by the penetration of high-pressure metal liquid, protects the elastic sealing body from the compression-shear composite stress, significantly prolongs the service life of the sealing assembly, and improves the reliability and production efficiency of the vacuum casting mold.

The invention relates to the technical field of casting, in particular to a vacuum continuous casting device which is provided with a vacuum casting chamber, a casting cavity is formed in the vacuum casting chamber, a casting crucible is arranged in the casting cavity, and a heating element is arranged on the outer side of the casting crucible. A circle of multiple limiting supports are further fixed to the outer side of the casting crucible, the limiting supports longitudinally slide in the casting cavity, and a fixing support fixed to the inner wall of the casting cavity is arranged below each limiting support. An elastic piece is arranged between each limiting bracket and the fixed bracket under the limiting bracket; a lower flow guide pipe is arranged at the bottom of the casting crucible, the bottom end of the lower flow guide pipe is connected with a crystallizer, and the crystallizer penetrates through the bottom wall of the casting cavity and is in sealed connection with the vacuum casting chamber. When a traction machine pulls a cast ingot, the casting crucible can move downwards along with the cast ingot, at the moment, the elastic piece is pressed to contract so as to buffer acting force from the traction machine, the problem of stress concentration at the joint of the lower flow guide pipe and the crystallizer is relieved to a certain extent, the fracture risk is reduced, and the possibility of copper liquid leakage is reduced.

The invention discloses a vacuum casting forming method and device for an Al-In-based aluminum alloy material, and relates to the technical field of aluminum-based alloys, and the vacuum casting forming method comprises the steps that aluminum and indium are melted to form an initial melt, electromagnetic stirring and ultrasonic treatment are carried out, scandium and cerium elements are added, and a homogenized melt is obtained; after a casting mold is preheated and coated with a refractory coating, mold filling is conducted under the control of vacuum pressure difference; after mold filling, the casting mold is rapidly tilted, multi-stage pressure is applied, and weak electromagnetic stirring in the initial stage of solidification is conducted; and finally cooling to room temperature to obtain a casting. According to the method, grain refinement, oxidation inclusion inhibition and scandium and cerium microalloying are conducted through electromagnetic stirring and ultrasonic wave cooperative treatment to form an Al3Sc nucleation phase and a (Ce, In) Ox indium capturing phase, vacuum pressure difference mold filling and tilting pressurization are combined, the macrosegregation and oxidation defects caused by the density difference of the Al-In alloy are overcome, and the component uniformity and density of a casting are improved.

The utility model relates to an electrified railway line measurement and control device, in particular to a multi-winding high-capacity all-insulation voltage transformer. Comprising a bottom plate and a main insulator arranged on the bottom plate, a transformer body and two primary supports connected with the transformer body are arranged in the main insulator in a sealed mode, the transformer body comprises an iron core, secondary windings and primary windings, multiple sets of secondary windings are wound on the outer side of the iron core, and the primary windings are wound on the outer sides of the multiple sets of secondary windings; the top of the main insulator is provided with two primary insulation columns, the tops of the two primary insulation columns are respectively embedded with two secondary high-voltage terminals, and the two primary high-voltage terminals are respectively connected with the two primary supports; and a secondary wiring terminal is arranged at the bottom of the main insulator. The utility model is formed by vacuum casting of epoxy resin, and has the characteristics of small volume, beautiful appearance, flexible installation, easy maintenance and complete functions.

The invention relates to the technical field of vacuum casting, in particular to a vacuum casting fixed-point pouring method. On the basis that smelting of a smelting furnace in the smelting chamber is completed, the shell is moved to a heat preservation chamber to be positioned, so that a pouring cup of the shell penetrates into a pouring hole in the top of the heat preservation chamber; the push rod is controlled to push the smelting furnace to rotate around a first axis by a first angle in a first rotating direction, so that the smelting furnace rotates from a vertical state to a first inclined state; the lifting rod is controlled to descend the first axis by a preset distance, so that the smelting furnace rotates around the first axis by a second angle in the first rotating direction, and the smelting furnace rotates from the first inclined state to a second inclined state; and the push rod is controlled to rotate the smelting furnace around the first axis by a third angle in the first rotating direction, so that the smelting furnace rotates from the second inclined state to a third inclined state. Therefore, the problem that the falling point precision in the pouring and casting process of molten metal in the smelting furnace is difficult to guarantee due to overlarge height difference under the vacuum condition is solved.

1. The name of the design product: gold and silver ingot casting machine. 2. The use of the design product: for gold and silver vacuum casting. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

This invention relates to high-voltage measurement or relay protection equipment for power supply systems, specifically a current transformer for electrified railways. It includes a casting body and a coil body encapsulated within the casting body. The coil body includes a secondary winding, a primary winding wound around the outside of the secondary winding, and a secondary winding support for supporting the secondary winding. The secondary winding comprises multiple secondary winding units arranged side-by-side, forming an integral structure by wrapping the secondary winding with an outer shielding layer. The secondary terminals of the secondary winding are located at the bottom side of the casting body, and the primary terminals of the primary winding are located at the top of the casting body. Multiple mounting inserts are provided at the bottom of the casting body. This invention is manufactured using epoxy resin vacuum casting, resulting in a product with small size, flexible installation, reliable insulation, high pollution resistance, high dynamic and thermal stability current, and low temperature rise. It is suitable for use in railway traction substation environments, thus improving the overall manufacturing level of railway substation equipment.

The invention relates to the technical field of multi-chamber vacuum casting, in particular to a multi-chamber vacuum casting bearing vehicle movement system and casting equipment. The system comprises a rail unit, a first bearing vehicle, a second bearing vehicle and a jacking unit. The first bearing vehicle moves along the track unit; the first bearing vehicle is provided with a first jacking hole and a first avoiding opening which vertically penetrate through the first bearing vehicle. The second bearing vehicle moves along the track unit; the second bearing vehicle is provided with a second jacking hole and a second receding opening which vertically penetrate through the second bearing vehicle. The jacking unit is located in the transition area; the jacking unit is arranged in a lifting mode in the vertical direction. The first jacking hole and the second jacking hole are used for avoiding the lifting process of the jacking unit; the first avoiding opening is used for avoiding the jacking unit when the first bearing vehicle moves; the second avoiding opening is used for avoiding the jacking unit when the second bearing vehicle moves; therefore, the scheduling problem of the shell assembly and the auxiliary transfer mechanism in the large-scale multi-chamber vacuum casting equipment is solved.

The present application relates to the technical field of transformer, in particular to a dry-type transformer for semiconductor equipment, comprising: a core winding unit formed by epoxy resin vacuum casting; a multilayer nano ceramic insulation layer wrapped on the surface of the core winding unit conductor; an internal liquid cooling channel module integrated between the layers of the core winding unit; an electromagnetic shielding shell wrapped on the whole transformer body; and an intelligent monitoring system installed on the electromagnetic shielding shell for monitoring the dry-type transformer; the dry-type transformer has high safety and good stability.

The invention discloses an environment-friendly vacuum casting method for iron castings. The environment-friendly vacuum casting method comprises the steps that 1, heat conduction filler is prepared; (2) mixing all-organic environment-friendly sand; (3) cast iron smelting and inoculation treatment; (4) casting mold modeling and vacuum pretreatment are carried out; (5) pouring operation is carried out; (6) microwave-assisted solidification; (7) shakeout and surface cleaning; (8) molding sand reuse treatment; and (9) detecting. According to the environment-friendly vacuum casting method for the iron casting, through the core-shell heat conduction filler and interface modification, the heat conductivity coefficient of the molding sand reaches 1.2-1.3 W / (mK), the strength is larger than or equal to 1.1 MPa, and VOCs is smaller than or equal to 3 mg / m; zoned microwave temperature control and electromagnetic shielding are adopted, the temperature difference of a casting is smaller than or equal to 50 DEG C, and the pearlite content is 90-93%; segregation is eliminated by adopting a pre-alloying nucleating agent, and the mechanical property is improved by 10-40%; molding sand reuse is not less than 5 times, and the regeneration utilization rate is not less than 80%; double-medium cleaning is adopted, so that the sand removal rate is greater than or equal to 99.5%, and secondary pollution is avoided; and full-process detection is adopted, so that the percent of pass reaches 95-98%, and the quality is traceable.

This invention relates to the field of multi-chamber vacuum casting technology, specifically to a multi-chamber vacuum casting carrier movement system and casting equipment. The system includes a track unit, a first carrier, a second carrier, and a lifting unit. The first carrier moves along the track unit; the first carrier has a vertically penetrating first lifting hole and a first clearance opening. The second carrier moves along the track unit; the second carrier has a vertically penetrating second lifting hole and a second clearance opening. The lifting unit is located in a transition zone; the lifting unit is vertically raised and lowered; the first and second lifting holes are used to avoid the lifting unit during its raising and lowering process; the first clearance opening is used to avoid the lifting unit when the first carrier moves; the second clearance opening is used to avoid the lifting unit when the second carrier moves; thereby solving the scheduling problem of the mold shell assembly and auxiliary transfer mechanism in large multi-chamber vacuum casting equipment.

This invention provides a method for preventing resin cracking in dry-core reactor coils, relating to the field of dry-core reactor manufacturing technology. The method includes configuring a mold system, performing resin pre-curing, dynamic stress-compensated curing, and demolding. By configuring a mold system comprising an elastic buffer layer, a radially adjustable slider group, and a zoned temperature control system, combined with a complete process chain of vacuum casting – gradient temperature-controlled pre-curing – dynamic stress-compensated curing – temperature-controlled demolding, this invention effectively alleviates the internal stress caused by the difference in shrinkage rates between the resin and the metal skeleton or conductors, reduces localized stress concentration caused by rigid mold constraints, and improves the problem of uneven curing caused by improper temperature gradient control. This comprehensively solves the resin cracking problem caused by stress concentration in traditional processes.

The utility model relates to the technical field of coil processing, and disclose an electric control device for coil epoxy resin vacuum casting heating solidification, including electric heating furnace, still include: electromagnet coil, the utility model realized the automation control of temperature control and vacuum degree control, has comprehensive advantage in accuracy, stability, visualization etc. In the heating process, artificial intelligence temperature controller realizes the automatic control of accurate multiple program segments to temperature and time, improves the stability of the temperature in the furnace through the furnace temperature equalization heating heat circulation device, the design of the overtemperature and limit temperature protection device in the furnace, increases the security of the whole process implementation, the intelligent digital display pressure controller real -time monitoring furnace vacuum degree real -time value in the vacuumizing process, realizes the constant pressure automatic control and visualization function of furnace vacuum degree.

An aluminum alloy vacuum casting process for optimizing the timing of the evacuation, comprising the following steps: Step A, start clamping; Step B, after 0.5S of starting clamping, the clamping is completed, and the vacuum pump starts high-speed evacuation of the mold cavity; Step C, after 1S of starting clamping, the punch starts to move forward at a low speed from the starting point at the rear end of the plenum; the vacuum pump maintains high-speed evacuation; Step D, after 1.3S of starting clamping, the vacuum pump reduces the evacuation rate to a low speed; Step E, after 1.4S of starting clamping, the punch moves forward at a low speed to just beyond the liquid injection port of the plenum, and then starts to accelerate; Step F, after 1.45S of starting clamping, the punch just accelerates to a high speed and no longer accelerates; Step G, after 1.5S of starting clamping, the vacuum pump restores the evacuation rate to a high speed, Step H, after 1.7S of starting clamping, the punch just reaches the front end of the plenum to complete the injection, and the vacuum pump starts medium-speed evacuation, and the mold starts to maintain pressure; Step I, after 6.5S of starting clamping, the mold pressure maintaining is completed, and the vacuum pump stops evacuation.

The application provides a preparation method of a copper-gallium target material, comprising the following steps: taking high-purity copper blocks and high-purity gallium as raw materials to perform vacuum smelting, the content of gallium in the raw materials is 35-55 wt.%, after the smelting is completed, the copper-gallium alloy is obtained by casting into a mold and cooling; the temperature of the vacuum smelting is 800-900 DEG C; the copper-gallium alloy is sprayed to prepare powder, and the copper-gallium alloy powder is obtained; the copper-gallium alloy powder is subjected to hot isostatic pressing and cooling, and the copper-gallium target material is obtained. The copper-gallium target material with high density and good uniformity of components is prepared by the following steps: first, a high-gallium copper-gallium alloy is prepared by using a vacuum casting method, then, alloy powder is prepared by using a gas spraying method, and finally, the copper-gallium target material is prepared by hot isostatic pressing sintering and annealing.

The application discloses an automatic vacuum casting machine and relates to the field of casting machines, and aims to solve the problem that mixing and casting cannot be simultaneously performed and the casting period is long in the prior art.The technical scheme is that a plurality of raw material tanks are arranged on a conversion mechanism, raw materials can be continuously provided by converting the raw material tanks, a stirring bin and a buffer bin are arranged in a mixing tank, the casting material in the stirring bin can be sent into the buffer bin for buffering after being stirred, and the casting material can be gradually poured into a mold, the material in the stirring bin can be continuously stirred during the buffering process, the material preparation and the casting can be simultaneously performed, the operation period is shortened, and the pouring time is saved.

The application discloses a high-temperature superalloy profile vacuum casting device and a casting process thereof, and belongs to the high-temperature superalloy processing field. The device comprises a vacuum melting furnace and a multifunctional crystallizer. The vacuum melting furnace is connected with a vacuum machine for vacuumizing. The multifunctional crystallizer is connected with a cooling liquid circulating refrigerating machine for cooling and a power hydraulic cylinder for providing power. When the device is used, the position state of the multifunctional guide rod is changed, so that the material discharged through the forming channel can form a hollow metal pipe or a solid metal rod according to the processing requirement, thereby meeting the processing requirement of the type product. Meanwhile, the cooling liquid flow path is improved, a more reasonable cooling scheme can be provided when the metal rod is manufactured, and the multifunctional hydraulic clamp is arranged to support the solid metal rod during production and to clamp the hollow metal pipe during production to provide resistance, so that the finished product is more compact and has higher quality.

The invention relates to the technical field of high-voltage electrical equipment, and particularly discloses a preparation method of a high-insulation thermoplastic sleeve, the surface of a nonlinear layer is coated with an insulation material, so that the corona discharge phenomenon is avoided; and meanwhile, the same thermoplastic material is adopted as the insulating layer (including the first thermoplastic layer and the second thermoplastic layer) material and the base material of the nonlinear layer, so that no obvious interface exists between the insulating layer and the nonlinear layer, charge accumulation is avoided, insulation failure is avoided, the insulation and voltage resistance of the sleeve is improved, and the operation reliability is improved. Besides, the thermoplastic material adopted by the invention has the characteristics of softening when heated and re-curing after cooling, the sleeve can be prepared by utilizing a co-extrusion processing and melting re-curing method, and the production period is greatly shortened compared with a method for preparing the impregnated paper sleeve by adopting a vacuum pouring method in the related technology.

The invention relates to the technical field of vacuum casting, in particular to a vacuum casting fixed-point pouring device and equipment. The device comprises a smelting furnace unit, a support unit, a lifting unit and an overturning unit. The smelting furnace unit comprises a smelting furnace body and a furnace nozzle; one end of the lifting unit is rotationally connected with the smelting furnace unit around a first axis, and the other end of the lifting unit is fixedly connected with the bracket unit; one end of the overturning unit is rotationally connected with the smelting furnace unit around a second axis, and the other end of the overturning unit is rotationally connected with the bracket unit around a third axis; the first axis, the second axis and the third axis are parallel to one another and are spaced from one another; the distance between the second axis and the third axis is adjusted along with the telescopic action of the overturning unit. In this way, the problems that the falling point of the molten metal and the preset position of the pouring cup are prone to deviation due to the too large height difference caused by the vacuum condition of the heat preservation chamber, and the falling point accuracy in the molten metal pouring process cannot be guaranteed are solved.

The present application relates to the technical field of high-voltage measuring device of electric multiple unit power system, and particularly relates to a capacitive voltage transformer for electric multiple unit. The voltage transformer is formed into an integrated full-enclosed main insulator by epoxy resin vacuum casting, and the primary high-voltage terminal is a stepped round table type standard C head structure. The inside is composed of a high-voltage capacitor and a low-voltage capacitor to form a capacitive divider, cooperate with a reactor to realize impedance compensation, cooperate with a damper to suppress resonance and overvoltage, and set a protection gap to realize overvoltage protection, and all wiring terminals are arranged in a sealed secondary wiring table. The present application has the advantages of capacitive voltage division and electromagnetic measurement, has the characteristics of small size, flexible installation, anti-resonance, anti-interference, high precision, strong protection, maintenance-free, etc., can adapt to the compact space and harsh operating environment of electric multiple unit, and is suitable for high-voltage measurement and relay protection system of electric multiple unit.

The invention discloses an aging strengthening nanometer high-strength aluminum alloy strain clamp forming process, and belongs to the technical field of electric power fitting manufacturing. The process comprises the following steps: preparing multi-element nano composite powder; carrying out vacuum casting compounding to form a nano composite melt; acoustic-magnetic coupling field homogenization and multi-stage purification treatment are adopted; preparing a blank through extrusion gradient forming; synergistic heat treatment of sectional solid solution, gradient quenching and sectional aging is carried out; and finally, precision machining and surface anti-corrosion treatment are conducted. According to the invention, through a powder-casting composite process, acoustic-magnetic coupling homogenization, gradient extrusion forming and synergistic heat treatment are combined, so that the comprehensive performance of nano-phase uniform dispersion, high density, high strength and plasticity balance, high conductivity and excellent corrosion resistance is realized. The process efficiency is high, the cost is controllable, and the method is suitable for large-scale production of the strain clamp of the ultra / extra-high voltage power transmission line.

The 35KV outdoor large-current inverted current transformer comprises a tubular main body mechanism which is transversely arranged, two ends of the tubular main body are open, the main body mechanism comprises a tubular main body which is transversely arranged, an annular cavity is formed in the tubular main body, a winding is fixedly connected in the cavity, and the winding is fixedly connected with the winding. The utility model relates to the technical field of current transformers. According to the 35KV outdoor large-current inverted current transformer, through the arrangement of the main body mechanism, when the current transformer is produced, the distance between the winding and the high-voltage primary shielding cylinder and the distance between the winding and the mold are adjusted firstly, then the winding is fixed through the fixing columns, vacuum pouring curing integral forming is conducted, a pouring material is an epoxy resin mixture, and it is guaranteed that the product is free of oil, gas and pollution; the overall structure of the device adopts an inverted bus type, so that the temperature rise of the product can be reduced, the cracking of the product can be prevented, the cost can be reduced, the size is small, the weight is light, the installation is convenient, and the practicability of the device is improved.