39 results about "Amorphous ribbon" patented technology

The utility model relates to the field of metallurgical equipment, in particular to a discharging trolley device for amorphous strip spraying equipment. The discharging trolley device for the amorphous spraying belt equipment comprises a trolley frame, a roller walking assembly, a bracket, two supporting frames and an electric lifting mechanism, the roller walking assembly is arranged below the trolley frame, the bracket is arranged above the trolley frame and assembled with the trolley frame in an up-down sliding mode, and the two supporting frames are arranged on the trolley frame. The electric lifting mechanism is installed on the frame and connected with the bracket, the two supporting frames are installed at the upper end of the bracket in a left-right spaced mode, and the upper ends of the two supporting frames are each provided with a supporting part used for being embedded with the lower portion of an amorphous coiled material. The amorphous coiled material unloading device has the advantages that the structural design is reasonable, the amorphous coiled material can be unloaded and conveyed to the rear end more quickly, manpower and electric power are reduced, and the unloading time period is greatly shortened.

In a method for the heat treatment of amorphous ribbons (1), the amorphous ribbon (1) is guided by a guide device (2), wherein at least one laser beam (3) from at least one laser beam source is focused onto at least one surface of the amorphous ribbon (1) so that the amorphous ribbon (1) is heated. Furthermore, a measuring device continuously measures the surface temperature of the ribbon (1) and transmits the measured values ​​to a control device, wherein the control device compares the transmitted measured values ​​with a setpoint and then adjusts at least one operating parameter of the laser beam source and / or the guide device (2) such that the ribbon (1) is heated completely.

Disclosed in the present invention is a preparation method for an anisotropic Nd2Fe14B / α-Fe bulk nanocrystalline composite permanent magnet material. The preparation method comprises the following steps: preparing a master alloy; crushing the master alloy into bulks, and, by means of a melt rapid quenching method, preparing amorphous ribbons; grinding the amorphous ribbons to obtain amorphous powder; cold-pressing the powder into bulks; and placing the bulks into a stainless steel mold, and heating and then rolling same, the stainless steel mold being of a plate-shaped structure, and a chamber for accommodating the bulks being formed in the stainless steel mold along the thickness direction thereof. The present invention presses the NdFeB amorphous powder into bulks, embeds same in the stainless steel mold, and performs rolling at a temperature below a crystallization temperature, so as to achieve high-temperature amorphous material crystallization.

This utility model relates to an automatic cutting and rewinding device for amorphous strip, belonging to the field of amorphous strip cutting technology. It includes: an unwinding device, a cutting device, a winding device, and a tension regulating device. The cutting device is located between the unwinding and winding devices. Multiple winding devices are provided. Each tension regulating device corresponds to one winding device, with each device located on the side of its corresponding winding device closest to the cutting device. The tension regulating device includes: a slide, a conveyor roller, and a first linear drive device. The conveyor roller is parallel to the axis of the winding device's roll and is mounted on the slide. The first linear drive device drives the slide to slide linearly in a direction perpendicular to the conveyor roller. This utility model solves the technical problem of long tension adjustment time, which seriously affects production efficiency.

This utility model provides an automatic winding device for amorphous strip magnetic cores and its auxiliary winding and welding mechanism. The auxiliary winding and welding mechanism includes a clamping unit, which includes a clamping component and a first drive module. The first drive module can drive the clamping component to move in a first direction. The clamping unit also includes a second drive module. The clamping component is rotatably connected to the drive end of the first drive module around its own first axis. The second drive module can drive the clamping component to rotate. The first axis is parallel to the first direction. The automatic winding device for amorphous strip magnetic cores includes the above-mentioned auxiliary winding and welding mechanism, which can improve the winding end quality and welding quality of the magnetic core.

This application belongs to the field of amorphous ribbon technology, and particularly relates to an insulating coating for amorphous ribbons and its preparation method. The insulating coating for amorphous ribbons provided by this application introduces silica-coated alumina nanopowder as a modified filler into the water-based polyester modified silicone resin matrix of the insulating coating, and performs surface modification with a silane coupling agent. After the insulating coating is cured on the surface of the amorphous ribbon to form an insulating coating, it can help the amorphous ribbon resist mechanical stress, thermal stress and insulation breakdown. It is a high-performance insulating coating for amorphous ribbons, which meets the long-term service requirements of high-frequency transformer cores, thereby solving the technical problem of low performance of insulating coatings in the prior art.

The utility model belongs to the technical field of coiling devices, and particularly relates to a coiling device which comprises a workbench. A motor and a speed reducer are arranged above the workbench, the output end of the motor and the speed reducer are respectively provided with a transmission disc, the two transmission discs are provided with a transmission chain, the output end of the speed reducer is detachably provided with a winding roller, the winding roller is provided with a suite placing and taking mechanism, and the speed reducer is provided with a stripping mechanism. The interior of the winding roller is of a hollow structure, a plurality of adjusting grooves are evenly formed in the side wall of the winding roller, the suite placing and taking mechanism comprises a two-way threaded rod rotationally arranged in the winding roller, threads at the two ends of the two-way threaded rod are in threaded connection with supporting rings correspondingly, and a plurality of hinge pieces are evenly arranged on the supporting rings; and the corresponding hinge pieces are matched with the adjusting grooves respectively, the two corresponding hinge pieces are connected with hinge plates through hinges respectively, the two hinge plates penetrate through the corresponding adjusting grooves to be connected with abutting plates through hinges, and the amorphous strips can be automatically coiled and stripped.

The invention discloses a high-entropy amorphous alloy sensor with high sensitivity and high Curie temperature and a preparation method of the high-entropy amorphous alloy sensor, and the high-entropy amorphous alloy sensor comprises the following components in atomic percent: 25-30% of Co, 25-30% of Fe, 15-25% of Ni, 10-15% of Si, 10-15% of B, 1-2% of Cu, 1-2% of Nb and 1-2% of Mo. The preparation method comprises the following steps: proportioning the alloy in proportion, repeatedly melting the alloy in a vacuum induction heating furnace for at least five times to ensure uniform components, preparing an amorphous ribbon through a vacuum single-roller rotary quenching and jet casting system, and preparing the amorphous ribbon into the sensor through photoetching and corrosion methods. And the prepared sensor can be used in the fields of biomedical detection, magnetic signal detection and the like.

The present invention provides an iron-based amorphous alloy strip having a composition substantially represented by formula (I): FeaBbCcSid (I); wherein 82.0 < = a < = 86.0, 8.5 < = b < = 15.0, 1.6 < = c < = 6.0, 0.4 < = d < = 2.5, a, b, c and d respectively represent the atomic percentage contents of Fe, B, C and Si, a + b + c + d = 100, and basically, the iron-based amorphous alloy does not exclude trace impurities from raw materials or brought in in the processing process. The invention further relates to a method for preparing the iron-based amorphous alloy strip, an iron core comprising the iron-based amorphous alloy strip and application of the iron-based amorphous alloy strip. The combination of high saturation flux density and amorphous forming ability is realized by increasing the Fe element and balancing the content of non-metallic elements, so that the amorphous strip with high saturation flux density and soft magnetic performance is obtained.

This invention relates to a self-separating device for amorphous ribbon and its method of use. The self-separating device includes a crucible, an intermediate ladle, a slit nozzle, and a forming and separating assembly. The crucible contains a molten alloy solution. The upper end of the intermediate ladle is connected to the crucible, and the lower end is provided with a slit nozzle. The forming and separating assembly includes a roller core, a roller sleeve, a separator plate, and a drive shaft. The roller core is mounted on the drive shaft, and the roller sleeve is fitted onto the roller core. Multiple positioning grooves are evenly distributed circumferentially on the outer circumferential surface of the roller sleeve. Separators are installed on the positioning grooves. The positioning grooves and separators extend along the length of the roller sleeve, and the separators protrude radially from the outer circumferential surface of the roller sleeve. The separators are configured to confine the molten alloy solution sprayed from the slit nozzle onto the roller sleeve between two adjacent separators to form an amorphous ribbon. By confining the molten alloy solution sprayed from the slit nozzle to the area between adjacent separators, an amorphous ribbon is directly formed without the need for subsequent cutting processes, effectively reducing waste of edge material.

The utility model discloses an iron core for a high-power density anti-interference energy-saving iron core transformer, and relates to the technical field of transformer iron cores, the iron core for the high-power density anti-interference energy-saving iron core transformer comprises an iron core body, the iron core body comprises a first C-shaped iron core, a second C-shaped iron core, a first shielding shell and a second shielding shell, wherein the first C-shaped iron core and the second C-shaped iron core are both composed of multiple layers of iron-based amorphous ribbons; the first shielding shell is installed on the outer wall of the first C-shaped iron core, and the first C-shaped iron core is provided with a connecting iron-based amorphous plate; the material cost of the iron core is reduced through the iron-based amorphous strip, anti-interference shielding protection can be carried out on the iron core through the aluminum shielding shell, friction between the iron core and the coil is reduced, and the anti-interference performance of the iron core is improved. The air gap holes of the iron core can be conveniently regulated and controlled by changing the air gap holes connected with the iron-based amorphous plate, and the overall performance of the iron core is improved.

The application relates to the technical field of amorphous alloy preparation, and discloses an amorphous strip cooling roller, which comprises a cooling pipe, the inner wall of the cooling pipe is fixedly connected with a partition plate, the partition plate divides the cooling pipe into a first liquid inlet cavity and a first liquid outlet cavity, a plurality of first liquid inlet holes are arranged on the cooling pipe at the first liquid inlet cavity, a plurality of first liquid outlet holes are arranged on the cooling pipe at the first liquid outlet cavity, and a cooling assembly is arranged on the surface of the cooling pipe. The amorphous strip cooling roller is designed by constructing a plurality of independent unit flow channels, the flow process, resistance and heat exchange condition of the cooling liquid in the whole area of the roller surface are highly consistent, the uniformity of roller surface cooling and the heat exchange intensity are improved, the cooling assembly is easy to disassemble in a modular assembly mode, the flow channel is convenient to maintain, clean and check, and the maintenance cost in the whole life cycle is effectively reduced.

This invention relates to the field of catalysts for hydrogen production through water electrolysis, and discloses a Ni-based amorphous alloy catalytic ribbon for alkaline water electrolysis and its preparation method. The preparation method includes the following steps: S1, accurately weighing nickel, zirconium, palladium, and platinum in an atomic ratio of 64-x-y:36:x:y, and melting them into an alloy ingot using a vacuum arc melt; S2, spraying the melted alloy ingot onto the surface of a high-speed rotating copper roller to form an amorphous ribbon; S3, immersing the ribbon in an HF solution for dealloying; S4, cleaning and drying to obtain a porous amorphous catalytic ribbon. The catalytic ribbon prepared by this method exhibits excellent hydrogen evolution reaction (HER) catalytic performance in an alkaline electrolyte (1 M KOH), achieving an overpotential as low as 13 mV at a current density of 10 mA / cm², a Tafel slope of 12 mV / dec, and high process repeatability and simplicity, making it suitable for large-scale production.

This invention relates to the field of amorphous ribbon manufacturing equipment technology, and more particularly to a molten steel level control system and method for an amorphous ribbon forming furnace. It includes a vision inspection module, a data calculation module, and an execution module, all electrically connected in sequence, as well as an alarm module electrically connected to the data calculation module; achieving automated, high-precision control of the molten steel level, reducing safety risks, and ensuring the quality of amorphous ribbon products.

The invention discloses a feeding device and a feeding method for an amorphous ribbon production line, and relates to the technical field of amorphous ribbons, the feeding device for the amorphous ribbon production line comprises a material frame, a material tray is rotatably mounted on the material frame, a driving device used for discharging is connected to the material tray, a material pool is movably mounted on one side of the material tray of the material frame, and the driving device is connected to the material pool. The material pool and the material frame are provided with guiding columns used for guiding a material belt, a sensor used for detecting the material belt is arranged in the material pool, and the driving device and the sensor are electrically connected with a control module. The controllable lifting material pool is used for replacing random stacking on the ground, the strip forms a stable omega-shaped loose ring in the pool, the sensor monitors the ring height in real time, the closed-loop control driving device automatically supplements materials, pull cracks caused by excessive traction and creases caused by excessive circulation are thoroughly eliminated, and the consistency of the magnetic performance of a finished product is improved.

The invention discloses an adhesive for an amorphous strip and a preparation method of the adhesive, and relates to the field of adhesives. The invention discloses an adhesive for an amorphous strip. The adhesive comprises the following raw materials in parts by weight: 55-65 parts of epoxy resin; 15-23 parts of an episulfide epoxy resin; 8 to 15 parts of alkyl glycidyl ether with 12 to 14 carbon atoms; 3-7 parts of calcium carbonate powder; 0.8 to 1.5 parts of a titanate coupling agent; 2-5 parts of a thermal curing agent; the epoxy resin is prepared from bisphenol F type epoxy resin and episulfide epoxy resin through a reaction of bisphenol A type epoxy resin and potassium thiocyanate. The adhesive provided by the invention has good bonding strength, thermal stability and excellent water resistance to the amorphous strip, can meet the high-temperature and high-humidity environment requirements of the amorphous strip, and does not affect the soft magnetic performance of the amorphous strip.

The invention relates to an iron-based nanocrystalline soft magnetic alloy and a preparation method thereof, and aims to solve the technical defects that the existing iron-based nanocrystalline alloy is difficult in mass production, insufficient in saturation flux density and depends on noble metal elements due to high sensitivity of an annealing process. On the basis of an alloy general formula Fe83Ni2B12.1-xC2Cu0. 9Px (x = 4-10 at.%), a component is reconstructed by partially replacing a B element with a P element; and annealing the amorphous ribbon at the temperature of 340-500 DEG C for 1-300 seconds to form a nanocrystalline / amorphous double-phase structure. The invention has the following technical effects: (1) high soft magnetic property: high saturation flux density and low coercive force are achieved; (2) a wide process window: the sensitivity of annealing time is obviously reduced, and the tolerance range of heat preservation time is greatly expanded; and (3) low cost and high stability: precious metal addition is avoided, and the amorphous forming ability and the crystallization temperature interval stability are improved.

The invention belongs to the technical field of material coating and compounding, and particularly relates to multi-layer amorphous strip coating and compounding equipment and method.The multi-layer amorphous strip coating and compounding equipment comprises a strip unwinding system, a coating system, a compounding system, a drying system and a winding system, the coating system comprises a plurality of three-roller transfer coating mechanisms, and each three-roller transfer coating mechanism comprises an adhesive roller, a transfer roller and a pressing roller; the compression roller is connected with the equipment rack through an inclined block adjusting mechanism capable of adjusting the inclination angle; the drying system comprises a plurality of sections of drying oven mechanisms, and air volume adjustable mechanisms are arranged at air inlets and air outlets of the drying oven mechanisms; according to the invention, accurate control of the coating thickness, gradient temperature rapid curing and full-process continuous production can be realized, and the defects of mismatching, poor coating uniformity, low production efficiency and the like of the existing silicon steel coating technology and impregnation technology in amorphous strip application are overcome.

The utility model discloses a center curling structure of a concentric-square-shaped circulating heating tunnel furnace, which belongs to the technical field of amorphous ribbon heating and comprises a concentric-square-shaped pipeline, a plurality of internal circulating heaters used for drying amorphous ribbons and a circulating coiling roller mechanism used for coiling the amorphous ribbons. The circulating winding roller mechanism comprises winding roller sets installed at the four vertex angles in the concentric-square-shaped pipeline, and each winding roller set comprises an outer winding roller, a plurality of middle winding rollers and an inner winding roller which are sequentially and rotationally installed inwards from the outer vertex angle of the concentric-square-shaped pipeline. And internal circulation heaters are arranged in four side pipes of the zigzag pipeline. According to the utility model, the amorphous strip is sequentially wound on the outer sides of the outer winding roller, the plurality of middle winding rollers and the inner winding roller, so that an outer ring amorphous strip, a middle ring amorphous strip and an inner ring amorphous strip are correspondingly formed; it is guaranteed that the amorphous ribbon extends long enough in the concentric-square-shaped pipeline, and the drying requirement is met; the equipment space is reduced, the energy consumption utilization rate is greatly improved, and energy conservation, emission reduction and equipment resource saving are achieved.

The application discloses a copper roller material for iron-based amorphous strip and a gradient heat treatment process, and belongs to the technical field of amorphous alloy material preparation. The material contains the following elements in percentage by weight: Si 0.02%-0.10%, W 0.02%-0.05%, Zr 0.05%-0.08%, Al 0.05%-0.1%, Mg 0.02%-0.04%, ZrO2-WC@Al2O3 core-shell particles 0.04%-0.13%, and the balance of Cu, with the total amount being 100%. The application can effectively improve the comprehensive performance of the copper roller by optimizing the composition of the copper roller material and adopting a unique gradient heat treatment process, so that the copper roller can still maintain good cooling effect, wear resistance and heat conductivity in a long-time continuous production process, thereby guaranteeing the stability of the quality and production efficiency of the iron-based amorphous strip. Therefore, the quality and production efficiency of the iron-based amorphous strip are improved.

The invention discloses a preparation method of a high-resistivity amorphous nanocrystalline composite soft magnetic material, and relates to the field of amorphous nanocrystalline preparation, the preparation method comprises the following steps: 1, preparing an amorphous ribbon: smelting an alloy raw material in a vacuum induction smelting furnace, 2, preparing the amorphous ribbon from the smelted raw material at a roller speed of 15-40m / s through a single-roller rapid quenching method, and 3, preparing the amorphous ribbon into a high-resistivity amorphous nanocrystalline composite soft magnetic material. Thirdly, nanocrystalline annealing is conducted, specifically, the amorphous thin strip is placed in an inert gas shielding annealing furnace to be annealed; the surface of the annealed amorphous ribbon is insulated through the atomic layer deposition technology, the composite structure is assembled, the amorphous ribbon can be effectively prevented from being oxidized in the high-temperature treatment process through precise temperature control of an inert gas protection annealing furnace and a hot-pressing device, and the high-resistance layer is formed. The surface quality of the material and the stability of the internal structure are ensured. The precise control can significantly improve the performance consistency of the material.

1. The name of the design product: amorphous strip forming machine. 2. The use of the design product: the design product is used for: cutting specified length of multi-layer amorphous strip coil, feeding and aligning (single stack); stacking single stacks to a set number; transporting single group to the coil mechanism; automatic winding, ensuring head-to-tail overlap, and uniform oil passage; automatically unloading after multi-group winding. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

This application relates to the technical field of fully automated slitting of amorphous ribbon, and in particular to an amorphous ribbon slitting machine, comprising a frame; a slitting mechanism, disposed in the middle of the frame, including an upper roller shear and a lower roller shear arranged vertically, through which the original amorphous ribbon passes to the gap between the upper and lower roller shears, thereby slitting the original amorphous ribbon into finished amorphous ribbon; a positioning and correction mechanism, mounted on the frame and disposed between the unwinding mechanism and the slitting mechanism, including a first positioning seat and a second positioning seat arranged horizontally, with a space between them, for limiting the two sides of the original amorphous ribbon; and a reinforcement mechanism, installed at the output end of the slitting mechanism, including an upper clamping seat and a lower clamping seat arranged vertically, through which the finished amorphous ribbon passes to the gap between the upper and lower clamping seats, for clamping and feeding the finished amorphous ribbon. This application can improve the dimensional accuracy of amorphous ribbon slitting.

The invention relates to a telescopic spool for winding amorphous strips, and belongs to the field of amorphous alloy closed three-dimensional wound iron core tools. Comprising a disc used for supporting strip winding; a plurality of hole grooves are formed in the front end of the core column, and the rear end is connected with the supporting pressing plate; the cylinder is positioned between the disc and the core column; the fastening pressing plate is fixed with a hole groove in the front end of the core column through a stud; the bolt and the cushion block are used for fastening the fastening pressing plate; the supporting pressing plate and the fastening pressing plate are connected to the inner side of the cylinder. After the core column is moved to the target hole groove, the bolt is tightened to fix the fastening pressing plate and the core column, and groove width adjustment is achieved. According to the amorphous alloy closed three-dimensional wound iron core, the time cost for replacing the spool when the amorphous strip is wound is reduced, the damage rate of the strip at the tail section is reduced, and the production efficiency of the amorphous alloy closed three-dimensional wound iron core is improved.

This invention relates to the field of amorphous ribbon processing technology, and discloses a grinding device and method for amorphous and nanocrystalline ribbons. The grinding device includes a frame, an unwinding module, a grinding module, a first thickness detection module, a rewinding module, and a control module. The grinding module includes a support, a grinding component, and a first displacement drive. The support is mounted on the frame to support the ribbon, and the grinding component is also mounted on the frame. A grinding space is formed between the support and the grinding component for the ribbon to pass through. The grinding component is used to grind the ribbon passing through the grinding space. The first displacement drive connects to the grinding component to drive it to move towards or away from the support. The first thickness detection module is mounted on the frame to detect the thickness of the ribbon between the unwinding module and the grinding space. This invention provides a grinding device and method for amorphous and nanocrystalline ribbons, which can reduce the thickness difference of the ribbon, improve the uniformity of the ribbon thickness, and improve the soft magnetic properties of the ribbon.

The utility model discloses a coil stripping mechanism for amorphous ribbon production, which relates to the technical field of coil stripping tools for amorphous ribbon production and comprises an auxiliary trolley, a driving motor is arranged on one side of the upper end of the auxiliary trolley, a motor box is arranged on the other side of the upper end of the auxiliary trolley, a rotating shaft is arranged on the front end face of the motor box, and a winding drum is sleeved on the rotating shaft. Bearings are arranged at the two ends of the winding drum, the winding drum is sleeved with a sleeve, a plurality of key grooves are formed in the side, with the axis as the center, of the winding drum, a plurality of fixing holes are symmetrically formed in the front end and the rear end, with the axis as the center, of the winding drum, and jacking assemblies are arranged in the key grooves. Accurate jacking and stretching are achieved through the jacking and stretching assembly, belt coil bearing and follow-up operation of the winding drum are facilitated, and efficiency is improved; the sleeve is matched with related parts to realize accurate positioning and stable supporting, so that accurate and stable coil unloading is guaranteed; all the components work cooperatively, so that the problems that time and labor are wasted and potential safety hazards are large in traditional amorphous strip coil unloading operation are solved, and the overall coil unloading effect and safety are improved.

The application belongs to the technical field of winding devices, and discloses an adjustable amorphous strip winding device, which comprises a frame, a winding mechanism is arranged on the outer side of the frame, and the winding mechanism extends to the inside of the frame. During use, the position of the guide disc can be adjusted according to the width of the amorphous strip. First, the anti-skid sleeve is held and rotated, so that the threaded sleeve is rotated. Since the square rod is matched with the screw rod, the screw rod can be limited in position, so that the screw rod can move upward in the vertical direction. After the screw rod is separated from the opening clamping piece, the guide disc is not limited. At this time, the guide disc can be moved horizontally. After the distance between the guide disc and the push plate is appropriate, the anti-skid sleeve can be reversely rotated to reversely rotate the threaded sleeve. The guide disc is positioned again by the screw rod. Through the above structure, the amorphous strip winding of different widths and tension requirements can be easily adapted, and the universality and applicability of the device are greatly improved.

The utility model discloses an adjustable outer welding device for amorphous strip winding, more particularly to the amorphous strip processing equipment technical field, is fixed on the winding machine, including support mechanism, welding mechanism and pressure mechanism, and support mechanism includes fixed bolster, sliding block and the drive assembly of drive sliding block movement, welding mechanism includes connecting rod and the outer welding cutter of being connected to the one end of connecting rod, and pressure mechanism includes the L shape rotation seat of being connected between sliding block and connecting rod and the elastic component of being arranged between L shape rotation seat and connecting rod, to adjust the pressure between outer welding cutter and winding material through the deformation of elastic component. The utility model adjusts the overall length of outer welding device through drive assembly, to adapt to different winding material size, and outer welding cutter is pushed down under the support mechanism and completes welding, and pressure mechanism utilizes the deformation of elastic component and dynamically controls the welding pressure when outer welding cutter and winding material contact, guarantees that outer welding head is always close to winding material joint in the welding process, and the stability of welding is ensured.

The invention relates to the technical field of motor iron core forming, and discloses an amorphous ultrathin material stator and rotor forming process which comprises a stamping table, a female die is fixedly connected to the side wall of the stamping table, a stamping die is slidably connected to the inner wall of the stamping table, and three stamping cylinders are fixedly connected to the inner wall of the stamping table. When the amorphous ribbon moves, the motor is started to drive the rotating rod to rotate, the rotating rod drives the grinding roller to rotate through the protruding block on the outer wall, the reciprocating assembly enables the grinding roller to continuously rotate and can continuously move in a transverse reciprocating mode, and when the amorphous ribbon moves, the grinding roller is driven by the motor to rotate. When the punching sheets are stacked, the grinding rollers can apply staggered shearing force to the bottoms of the amorphous strips, burrs at the bottoms of the amorphous strips are evenly ground, the burrs fall off, the punched punching sheets are smoother, the phenomena that the bottoms of the punching sheets are uneven, and when the punching sheets are stacked, tight attachment between the punching sheets is affected are effectively prevented, and the quality of a formed iron core is improved.

The application discloses a preparation method of amorphous strip, and belongs to the field of rapid solidification technology, and solves the problem of low yield of the amorphous strip prepared by using the existing method. The method comprises the following steps: step 1, the master alloy is loaded into the smelting crucible of a smelting device, the vacuum quick-quenching equipment is vacuumized, and then inert gas is filled into the vacuum quick-quenching equipment; step 2, the smelting device is started to melt the master alloy until the master alloy is completely melted; step 3, the melted master alloy is transferred to a tundish and is placed; step 4, the rotating cooling roller is started, the tundish is pressurized to spray the strip, and the tundish and the quick-quenching vacuum chamber maintain a pressure difference; step 5, the spraying condition is observed, the roller speed is adjusted according to the strip condition, and the vacuum quick-quenching process is ended.