199 results about "Emery paper" patented technology

The invention relates to the field of hole sealing agent quality detection, in particular to a nickel-free medium-temperature hole sealing agent drying abrasion resistance detection device and method based on visual image intelligent sensing, and the device comprises a rack which is provided with a visual detection device and a rotating frame capable of rotating; the two sets of supporting structures are rotationally installed on the rotating frame, each supporting structure comprises a plurality of sets of first arc-shaped pieces and second arc-shaped pieces which are circumferentially arranged at equal intervals, and the first arc-shaped pieces and the second arc-shaped pieces can form a cylindrical structure; when the rotating frame rotates, one set of cylindrical structures can be kept in a first state or a second state, and when the cylindrical structures are in the first state, the annular abrasive paper can be driven to rotate; the traction assembly is connected with the first arc-shaped pieces and the second arc-shaped pieces, in the second state, the traction assembly can drive the multiple sets of second arc-shaped pieces to move close to one another, after the second arc-shaped pieces move by a preset distance, the multiple sets of first arc-shaped pieces are driven to move close to one another, and the detection process is simplified.

The invention discloses a method for prolonging the service life of a resistance spot-welding electrode, a manufactured resistance spot-welding electrode cap and application, and the method comprises the following steps: taking a chromium-zirconium-copper electrode cap as a base body, grinding the working surface of the base body step by step by adopting abrasive paper, and then sequentially polishing, ultrasonically cleaning and drying to obtain a pretreated base body; performing vacuum zirconium permeation treatment on the pretreated matrix by adopting a permeation agent so as to form a zirconium-rich solid solution diffusion layer in the pretreated matrix, thereby obtaining the matrix subjected to zirconium permeation reinforcement; physical vapor deposition treatment is adopted, and a metal transition layer is deposited on the surface of the solid solution diffusion layer of the matrix subjected to zirconium permeation strengthening; wherein the metal transition layer is a Cr transition layer or a Ti transition layer; and a graphite target and titanium target co-sputtering mode is adopted, and a composite gradient functional layer is sputtered and deposited on the surface of the metal transition layer of the matrix treated in the step S3. The electrode service life of the method is improved by magnitude order, and the effect is extremely remarkable.

The invention relates to the technical field of metal round pipe machining, in particular to an end face cutting device for metal round pipe machining, which comprises a bottom plate, supporting legs are fixedly mounted on the bottom surface of the bottom plate and close to four groups of corners, and a first groove and a second groove are formed in the surface of the upper end of the bottom plate in a penetrating manner. According to the round pipe cutting device, cutting of a round pipe body is completed, the cutting end face of the round pipe body is automatically polished and deburred, the working efficiency of cutting machining of the round pipe body is improved, multi-direction polishing is achieved, the polishing effect is improved, and by arranging a pushing mechanism, abrasive paper generates an annular recess to be attached to the inner edge and the outer edge of the end face of the round pipe body; and a cleaning mechanism is arranged, so that ground chippings adhering to the surface of the abrasive paper can be well and comprehensively removed, and the situation that the chippings adhere to the abrasive paper, shield the abrasive paper and affect the grinding effect on the circular pipe body is avoided.

The utility model belongs to the technical field of machining, and discloses a surface polishing device for a hard anodized layer of an aluminum alloy inner hole. One end of the mandrel and one end of the silica gel expansion sleeve are installed in a sealed mode; the other end of the silica gel expansion sleeve is fastened with the mandrel; the other end of the mandrel extends out of the silica gel expansion sleeve and is internally provided with a plug; the through hole is located in the outer circle of the mandrel in the silica gel expansion sleeve. Polishing abrasive paper is uniformly adhered to the silica gel expansion sleeve in the axial direction; and the actuating cylinder is sleeved outside the silica gel expansion sleeve. The pressure source is a pressure air source or a pressure water source. The aluminum alloy inner hole hard anodized layer surface polishing device can replace manual polishing, flexible expansion and contraction are achieved through the arrangement of the silica gel expansion sleeve, the polishing effect is good and even, the structure is simple, and economical efficiency is good.

The invention discloses a method for improving the current downloading capacity of an REBCO superconducting layer in a magnetic field, and belongs to the field of superconductor materials, and the method comprises the steps: depositing an auxiliary layer on the surface of the REBCO superconducting layer, and carrying out the rotary grinding of the auxiliary layer on abrasive paper in cooperation with a cleaning solution, so as to introduce high-density dislocation into the REBCO superconducting layer, and cleaning the surface of the ground REBCO superconducting layer by using a cleaning solution, depositing a silver layer, and carrying out oxygen absorption treatment to obtain the final REBCO superconducting tape. According to the technical scheme, the on-site performance of the REBCO superconducting layer can be improved at low cost.

The utility model provides an abrasive paper frame, and belongs to the technical field of polishing equipment. The abrasive paper frame comprises a base plate, more than two mounting seats are arranged on the base plate, each mounting seat is provided with a pressing piece and a clamping structure, each pressing piece comprises a connecting rod, each connecting rod is provided with a pressing block, and each connecting rod can be clamped in the corresponding clamping structure and enables the corresponding pressing block to abut against the base plate. According to the abrasive paper frame, the connecting rod of the pressing piece is clamped through the clamping structure, the abrasive paper is pressed and fixed through the pressing block on the connecting rod, operation is easy, and the abrasive paper is conveniently fixed.

The invention discloses microcrystalline glass with excellent mechanical properties and weather resistance. Main crystalline phases of the microcrystalline glass are petalite and silicon lithium stone; the overall crystallinity of the microcrystalline glass is 85% or above; the mass fraction of Na2O on the surface of the microcrystalline is 1%-5%, the mass fraction of K2O is 1%-3%, the mass fraction ratio of Na2O to K2O is 1-3, and the microcrystalline glass is prepared through melting, heat treatment, slicing and two times of chemical strengthening. By designing a two-strong process with proper surface K2O and Na2O concentrations, the weatherability performance better than that in the prior art is obtained, and meanwhile, the performance of 4PB / ROR / falling ball / abrasive paper is improved to a certain extent.

The utility model discloses a paint surface polishing tool installed on a collaborative robot, which comprises a device body, the device body comprises a driving device, guide rods, a guide device and a polishing device, a group of guide rods are symmetrically installed at the bottom of the driving device, the polishing device is installed at the bottom of the group of guide rods, and the guide device is sleeved on the group of guide rods; the polishing device comprises a base block and a set of swing discs, the swing discs are of a semicircular structure, the base block is located between the set of swing discs, hinges are arranged between the base block and the swing discs, swing shaft lugs are arranged at the tops of the swing discs, connecting shafts are installed in the swing shaft lugs through rotating shafts, and the other ends of the connecting shafts are connected with the guiding device. Burr buckles are arranged at the bottoms of the swing discs, and sponge abrasive paper discs are installed at the bottoms of the burr buckles. According to the device, the paint surface polishing efficiency can be improved, the polishing range can be adjusted, accordingly, abrasive paper is driven to be in a folded state, and narrow areas such as A columns can be polished.

The invention discloses a water-saving irrigation and fertilization device for intelligent agricultural planting, and relates to the field of agricultural irrigation, the water-saving irrigation and fertilization device comprises a water storage tank, and also comprises a water spray pipe for spraying water in the water storage tank for irrigation; the water outlet cleaning mechanism is used for cleaning the outer wall of the water spraying pipe, and the water outlet cleaning mechanism is located on the outer wall of the water spraying pipe; according to the water-saving irrigation and fertilization device for intelligent agricultural planting, through the effect of a water outlet cleaning mechanism, when a water spraying pipe rotates, water spraying holes in the outer wall of the water spraying pipe make friction contact with a friction roller, the friction roller is driven to rotate according to the effect of friction force, and friction abrasive paper arranged on the outer wall of the friction roller increases the friction force between the friction abrasive paper and the water spraying holes; dust and impurities attached to the outer wall of the water spraying hole during water spraying can be efficiently removed through friction, the smoothness of the water spraying hole is improved, it is guaranteed that irrigation water can be evenly and stably sprayed out, and the irrigation quality is improved.

The invention discloses a method for testing the content of elements in a metal tellurium ingot based on glow discharge mass spectrometry, the metal tellurium ingot is polished by white abrasive paper to obtain a flaky sample, the test surface is flat and smooth and has metallic luster, the sample preparation operation is simple, and the problem that the metal tellurium ingot cannot be directly fed in glow discharge mass spectrometry analysis can be effectively solved. The metal tellurium ingot as a sheet enters the glow discharge mass spectrometry step, impurities are not introduced into a sample, a test signal main body is a test sample, and potential impurity element pollution in the sample preparation process is reduced.

The utility model discloses a multifunctional sanding machine which comprises a sanding machine body, a transmission shaft is arranged at one end of the sanding machine, a protective cover is arranged on the outer side of the transmission shaft, an installation plate body is arranged at the bottom end of the transmission shaft, abrasive paper is arranged at the bottom end of the installation plate body, and a fixing mechanism is arranged between the abrasive paper and the installation plate body. A connecting plate on the outer side of the abrasive paper is fixed into a fixing plate, a clamping block in the fixing plate is arranged in a groove, the fixing plate makes contact with the abrasive paper, the abrasive paper can be preliminarily fixed, when the fixing plate is installed, a limiting plate is squeezed, meanwhile, a telescopic spring shrinks, and the abrasive paper is fixed through the resilience force effect of the spring. And the abrasive paper can be fixed between the limiting plate and the fixing plate, and the fixing effect on the abrasive paper can be further enhanced.

The utility model discloses a soft magnetic ferrite core surface finishing device, which relates to the technical field of magnetic core production and comprises a base and a support plate, electric cylinders are mounted on two sides of the bottom of the support plate, output ends of the electric cylinders are connected with a support disc through extension rods, and an inner ring of the support disc is connected with a transmission wheel. Through the arrangement of the polishing disc, the sleeve, the bonding layer, the polishing abrasive paper, the electric cylinder, the supporting disc, the transmission wheel and the first transmission groove, the surface of the ferrite core body can be conveniently polished and trimmed through the arrangement of the polishing disc; when an inner ring of an annular ferrite core body needs to be polished and trimmed or a gap of an E-shaped ferrite core body needs to be polished and trimmed, the output end of an electric cylinder drives a supporting disc to move upwards through an extension rod, the supporting disc moves upwards to drive a polishing disc to move upwards through a transmission wheel, and therefore polishing abrasive paper leaks out of the bottom of the polishing disc; the polishing head does not need to be disassembled or replaced or replaced to another polishing device, and operation is easy and convenient.

The invention relates to the technical field of building material test and analysis, and discloses a cement concrete back scattering electron image analysis sample preparation method, which comprises: S1, crushing cement into a sample; s2, stopping hydration and drying at low temperature: soaking the sample in absolute ethyl alcohol or isopropanol, and drying at low temperature; s3, pre-polishing: pre-polishing the sample by using raw abrasive paper; s4, inlaying: inlaying the sample with low-viscosity epoxy resin in vacuum cold inlaying equipment; s5, rough grinding is conducted, specifically, the sample is ground through 800 #-2000 # abrasive paper; s6, secondary low-temperature drying: wiping the surface of the sample with absolute ethyl alcohol, and then performing low-temperature drying; s7, fine grinding: finely grinding the sample by using 2500 #-4000 # abrasive paper in sequence; s8, polishing: polishing the sample by using a 1000 nm polishing solution and a 500 nm polishing solution in sequence; and S9, final cleaning: wiping the surface of the sample with absolute ethyl alcohol to obtain the sample for analyzing the backscattered electron image with a flat and smooth surface. According to the scheme, the cement samples are processed according to the sequence, so that the flat and smooth samples without scratches and cracks can be obtained, and then the high-quality back scattering electron image is obtained.

The utility model discloses a gluing mechanism for soft folding-resistant abrasive paper, which comprises a processing table, positioning plates are mounted on two sides in the processing table, and paper winding rollers are mounted on the inner sides of the positioning plates; a glue storage mechanism is installed in the limiting frame, an elastic pressing plate is arranged above the glue storage mechanism, and a telescopic spring is connected to the upper portion of the elastic pressing plate. Driving motors are installed at one end of the clamping plate and one end of the paper winding roller, a glue uniformizing roller is installed on the inner side of the clamping plate, a linkage block is connected to the upper portion of the glue uniformizing roller, and a bidirectional push rod is connected to the inner side of the linkage block. Compared with an existing device, according to the gluing mechanism for the soft folding-resistant abrasive paper, the limiting effect on the glue storage mechanism can be achieved through the limiting frame, an elastic pressing plate and the glue storage mechanism stretch out and draw back mutually through a telescopic spring, and therefore the glue storage mechanism can be conveniently installed and positioned, and a two-way push rod can drive a linkage block and a clamping plate to stretch out and draw back relatively; therefore, the glue uniformizing roller can be conveniently assembled and disassembled.

The utility model discloses a dull polish machine convenient to replace abrasive paper, and relates to the technical field of dull polish machines, the dull polish machine comprises a bottom plate, a triangular plate A and a triangular plate B are respectively arranged on one side of the top of the bottom plate, and a sliding groove is formed in the top surface of the bottom plate. According to the grinding machine facilitating abrasive paper replacement, through the sliding separation design of a triangular plate A and a triangular plate B, the rapid abrasive paper replacement function is achieved, fixing of the triangular plate B in a sliding groove is relieved by unscrewing a nut, the triangular plate B horizontally slides to enable a first sleeve to be separated from a transmission cylinder, and abrasive paper tension is automatically released; the problem that a traditional belt sander is difficult to replace due to high tensioning force is solved, the abrasive paper replacing efficiency is improved, the abrasive paper tension self-adaption function is achieved through the adjusting structure design of a B fixing shaft and a longitudinal sliding groove, the B fixing shaft is fixed by selecting threaded holes of different heights through a threaded bolt, the tensioning degree of abrasive paper is controlled by adjusting the longitudinal position of a second sleeve, and the abrasive paper replacing efficiency is improved. And the requirement for replacement of abrasive paper with different abrasion degrees is met, and operation convenience is improved.

1. The name of the design product: sandpaper machine sheath. 2. The use of the design product: sandpaper machine sheath. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The utility model relates to an edge cutting device for foam processing, which comprises a device body, a cutting blade is arranged on the device body, and two limiting mechanisms for fixing foam are symmetrically arranged on the device body. According to the edge cutting device for foam processing, the driving module, the positioning ring and the connecting piece are arranged, after the driving module is started, when the length of a piston rod of the driving module is increased, the positioning ring drives the connecting piece to rotate, the pressing plate is lifted through rotation of the connecting piece, and after foam needing to be subjected to edge cutting is well placed, the piston rod of the driving module is shortened; the connecting piece rotates to press the pressing plate downwards, after foam is pressed by the pressing plate, the foam needing to be trimmed is fixed to the device body, the foam is prevented from deviating in the trimming process, and the problems that due to an anti-skid pad, the foam deviates or deforms in the cutting process, particularly when the surface of the anti-skid pad or an abrasive paper pad is uneven, the cutting accuracy is affected, and the cutting quality is affected are solved. The cutting edge is not tidy, and the edge cutting precision is reduced.

This invention relates to a flexible chain-type high-efficiency grinding device for wind turbine blades, comprising: a grinding bracket, a grinding mechanism and a grinding support mechanism disposed on the grinding bracket, and a floating connection assembly connected to the grinding bracket; wherein the grinding mechanism includes at least an annular chain assembly adapted to perform rotary motion, a plurality of grinding plates arranged at intervals along the rotary motion direction of the annular chain assembly and connected to the annular chain assembly, and abrasive paper disposed on each grinding plate; the grinding support mechanism includes at least a first pressure roller assembly and a second pressure roller assembly disposed in the annular region formed by the annular chain assembly; wherein the first pressure roller assembly is adapted to support the grinding plate facing the wind turbine blade among the plurality of grinding plates, and the second pressure roller assembly is adapted to support the portion of the annular chain assembly facing the wind turbine blade; and the floating connection assembly is used to connect to a robot end effector and enable the grinding bracket to float relative to the wind turbine blade.

The invention discloses an electromagnetic double-gradient composite material containing Ni and CFC and a preparation method and application thereof, and relates to the technical field of electromagnetic shielding materials. The preparation method comprises the following steps: (1) cutting carbon fiber cloth into small blocks, polishing carbon fibers through abrasive paper, immersing a sample into a sensitizing solution at room temperature for 15 minutes, and soaking the sample into an activating solution for 90 seconds; a sensitizer used in the chemical nickel plating process comprises nickel sulfate hexahydrate and diluted hydrochloric acid; and (2) ammonia water is added to adjust the pH of the chemical nickel plating solution, chemical nickel plating treatment is carried out at the temperature of 60 DEG C, nickel deposition is carried out for 1-4 times and 20 min each time, after the reaction is completed, deionized water is used for washing for 2 min, then pressing is carried out for 48 h, and finally drying is carried out in a drying oven, so that the electromagnetic double-gradient composite material is obtained. By depositing Ni on the CFC substrate, the dielectric loss, magnetic loss and heterogeneous interface loss performances are remarkably improved.

The utility model discloses an intelligent grinding and polishing system for a small workpiece coating robot, which comprises a base system, and the top of the base system is sequentially provided with a detection equipment quick replacement support, a grinding and polishing equipment quick replacement support, an electric control system, a feeding and discharging system, a robot control system, an industrial robot and an automatic abrasive paper replacement system. The detection equipment rapid replacement support, the grinding and polishing equipment rapid replacement support, the electric control system, the feeding and discharging system, the robot control system, the industrial robot and the automatic abrasive paper replacement system are fixedly installed on the top of the base system through bolts. According to the utility model, communication among a detection equipment rapid replacement bracket, a grinding and polishing equipment rapid replacement bracket, a dust removal system, a protection system, a feeding and discharging system, an industrial robot, an automatic abrasive paper replacement system, grinding and polishing equipment, detection equipment and the like can be realized, and automatic tool replacement, automatic abrasive material replacement and automatic feeding and discharging can be realized; robot control over the grinding and polishing process and technological parameters is achieved, and the grinding and polishing quality is guaranteed.

The utility model relates to the field of bolt machining devices, and discloses a hydraulic torque converter bolt derusting and polishing device which comprises a bottom plate, two inner vertical plates are symmetrically mounted on the two sides of the upper surface of the bottom plate, a first limiting column and a second limiting column are rotationally mounted on the opposite sides of the two inner vertical plates correspondingly, and a hexagonal notch is formed in the end face of the first limiting column; a second motor is installed on the side face of the inner vertical plate on the same side with the first limiting column, the output end of the second motor is fixed to the corresponding end of the first limiting column, outer vertical plates are installed on the edges of the two sides of the upper portion of the bottom plate, and the first motor drives the two-way lead screw to rotate and drives the two inner vertical plates to drive the first limiting column and the second limiting column to move. The bolt is clamped and limited between the first limiting column and the second limiting column, and the second motor is matched, so that the rotating first limiting column can be matched with the second limiting column to drive the clamped and limited bolt to continuously rotate, the threaded end of the bolt continuously makes contact with abrasive paper, and automatic polishing of the bolt is achieved.

The utility model belongs to the technical field of dull polish, and particularly relates to a swing type sanding machine which comprises a machine body. A partition plate is fixedly connected to the interior of the machine body; the bottom of the partition plate is fixedly connected with a motor; the output end of the motor is fixedly connected with an eccentric rod; the middle part of the machine body is slidably connected with a connecting rod; a first connecting groove is formed in the middle of the connecting rod; the other end of the eccentric rod is slidably connected to the middle of the first connecting groove. The bottom of the connecting rod is fixedly connected with a pressing plate; the two side walls of the machine body are symmetrically arranged and fixedly connected with a pair of supporting frames. The middle part of the support frame is rotationally connected with a mounting shaft; the end part of the mounting shaft is fixedly connected with an elastic rope; the other end of the elastic rope is fixedly connected with a limiting plate; the limiting plate is connected to the end part of the mounting shaft in a sliding manner; through the structure, the unworn abrasive paper can be quickly mounted to the working position after the abrasive paper is worn, so that the working time is saved, and the use convenience of the device is improved.

The utility model relates to the technical field of metal signboard machining, and discloses an edge grinding device suitable for a metal signboard, the edge grinding device comprises a base and a limiting frame, the limiting frame is installed at the top of the base, supporting pieces are welded to the two sides of the limiting frame, and movable blocks are movably arranged at the bottoms of the two supporting pieces; the top ends of the two movable blocks are attached to the inner top walls of the two supporting pieces correspondingly. According to the scheme, power shafts of the two electric motors are used for driving the two rotating blocks to rotate at a high speed, the two rotating blocks drive the two pieces of abrasive paper to rotate at a high speed, and then when the metal signboard is slowly and vertically inserted into the limiting frame, the two pieces of abrasive paper can grind the two sides of the metal signboard; and meanwhile, the two rotating blocks are matched to limit the metal signboard again.

The utility model relates to the technical field of water segregators, in particular to a plastic water segregator body deburring jig which comprises a mounting seat, double-layer worm wheels are arranged in the mounting seat, worm rods which are kept meshed are arranged on one sides of the two worm wheels respectively, and a first transmission shaft is arranged at the rotating center of the upper-layer worm wheel. A second transmission shaft is arranged in the rotating center of the lower-layer worm wheel, the lower end of the second transmission shaft is connected with a mounting support, a bevel gear assembly is arranged in the mounting support, the lower end of the first transmission shaft extends into the mounting support and is in transmission connection with the bevel gear assembly, and an output shaft of the bevel gear assembly is designed to be a fixed shaft; the fixed shaft is sleeved with a cutter fixing seat which rotates coaxially with the fixed shaft, abrasive paper grinding is replaced by milling grinding through a milling cutter, the milling angle of the milling cutter can be adjusted according to the actual situation, the deburring efficiency is greatly improved, the influence of the inner space of the water segregator on grinding is small, and the grinding quality of the water segregator is effectively guaranteed.

The invention discloses a low-deformation efficient intelligent welding system for a water cooling plate of an electric vehicle, and belongs to the technical field of intelligent welding systems.The low-deformation efficient intelligent welding system comprises a workbench, a plurality of sliding grooves are formed in the top of the workbench, a matrix plate is arranged above the workbench, a guide rail is arranged on the outer wall of the top of the workbench, and a mechanical arm and a position control mechanism are slidably connected to the outer wall of the guide rail; the position control mechanism comprises a moving seat slidably connected with the sliding groove, a moving block and a profiling pressing mechanism are arranged at the top of the moving seat, the profiling pressing mechanism comprises a profiling strip arranged at the bottom of the matrix plate and an instant cooling mechanism, the instant cooling mechanism comprises a mounting seat arranged at one end of the mechanical arm, and two nozzles are arranged on one side of the mounting seat. The position control mechanism controls the multiple profiling pressing mechanisms at the same time, the working efficiency is improved, abrasive paper is made to make close contact with the surface of a weld joint all the time through the profiling pressing mechanisms, the grinding effect is guaranteed, the weld joint is immediately cooled after welding through the instant cooling mechanism, and the deformation probability of the weld joint is reduced.

The utility model provides a steam turbine generator unit excitation carbon brush bottom arc polishing sliding tool which comprises a supporting plate and a polishing frame, a grinding material installation assembly is fixedly connected to the upper portion of the supporting plate, an installation plate is inserted into the polishing frame, a plurality of limiting frames are fixedly connected to the interior of the installation plate, carbon brush bodies are fixedly connected to the interiors of the limiting frames, and the carbon brush bodies are fixedly connected to the interiors of the carbon brush bodies. A plurality of limiting sliding grooves are formed in one side of the mounting plate, anti-falling sliding tables are slidably connected to the interiors of the limiting sliding grooves, pressure springs are fixedly connected to the upper portions of the anti-falling sliding tables, and one sides of the pressure springs are attached to the top of the carbon brush body; the abrasive paper fixing table is fixedly connected to the upper portion of the supporting plate, a plurality of carbon brush bodies are fixed through the limiting frame in the mounting plate, when the abrasive paper fixing table is inserted into the polishing frame, the pressure spring is pressed to generate constant downward pressure, the bottoms of the carbon brushes are tightly attached to abrasive paper, polishing is synchronously completed in front-back movement of the frame, bottom arc shapes are consistent, contact surfaces are uniform, and polishing efficiency and precision are improved.

The invention discloses an EBSD sample of an AlMoNbTiV-series refractory high-entropy alloy and a preparation method. The preparation method comprises the following steps: cutting a refractory high-entropy alloy sample to be prepared; carrying out step-by-step grinding and mechanical polishing on the EBSD analysis surface of the sample by adopting abrasive paper so as to enable the surface to be smooth and bright, cleaning and blow-drying for later use; preparing an electrolytic polishing solution composed of a methanol solution and a sulfuric acid solution; the refractory high-entropy alloy sample is used as an anode and connected with the positive electrode of a power supply; stainless steel or other steel sheets serve as a cathode and are connected with the negative electrode of the power source, and the refractory high-entropy alloy sample is subjected to electrolytic polishing; and after electric polishing is completed, the refractory high-entropy alloy EBSD sample is rapidly cleaned and blow-dried, and the refractory high-entropy alloy EBSD sample is obtained. The EBSD sample prepared through the method is easy to operate, low in environment temperature requirement and high in resolution rate, expensive equipment such as vibration polishing equipment is not needed, the high resolution rate of the EBSD sample is guaranteed, and low-cost and high-efficiency preparation of the AlMoNbTiV series refractory high-entropy alloy EBSD sample is achieved.

The invention relates to a metallographic sample preparation method of multiplication material ceramic microspheres for a fusion reactor. The metallographic sample preparation method comprises the steps that the multiplication material ceramic microspheres for the fusion reactor are flatly laid at the bottom of a cold inlaying mold; a mixed solution of polyacrylic resin and a curing agent is added into the cold inlaying mold, and the mold is placed at the room temperature to wait for solidification forming; grinding and polishing the molded inlaid sample with the microspheres taken out by using abrasive paper on a grinding and polishing machine, so that the sections of the ceramic microspheres are exposed and smooth; the prepared H2O2 corrosive liquid is heated in a water bath kettle, after the H2O2 corrosive liquid is heated to 60-80 DEG C, the embedded sample is placed in the water bath kettle to be corroded for preset time, and the concentration of the H2O2 corrosive liquid is 10-40%. The preset time is 3-5 min; and taking out, washing with clear water, and coating in an ion sputtering instrument to obtain a sample. According to the method, the H2O2 corrosive agent with proper concentration is adopted, and specific parameters such as heating temperature and corrosion time in the chemical corrosion process are set, so that the problem of clearly observing the grain size of the proliferation material ceramic microspheres under a metallographic microscope is solved.

The invention discloses a reaction wear protection type nickel-based superalloy and a preparation method thereof, and relates to the technical field of superalloy preparation. The preparation method comprises the following steps: S1, preparing an alloy according to the components of the nickel-based superalloy, carrying out vacuum smelting, then carrying out homogenization treatment, and eliminating harmful phases such as a low melting point to obtain a nickel-based superalloy cast ingot; s2, the nickel-based superalloy cast ingot is subjected to thermal deformation cogging, annealing and machining to the target size, and a block alloy is obtained; s3, the surface of the block alloy is subjected to local large plastic deformation, electrolytic polishing and abrasive paper grinding; and S4, the polished alloy is subjected to pre-oxidation treatment, and the reaction wear protection type nickel-based high-temperature alloy is obtained. In the high-temperature friction and wear process, a phase and a microstructure with an anti-wear effect are formed in situ, so that the wear resistance of a block material is remarkably enhanced, and the problems that an existing enhanced block nickel-based high-temperature alloy is insufficient in wear resistance, wear strengthening fails and the like are effectively solved.

The utility model relates to novel water-resistant and grinding-resistant abrasive paper, which belongs to the technical field of abrasive paper and comprises an abrasive paper body, the abrasive paper body consists of a paper base layer, a resin filling layer, a grinding layer, a bonding layer, a waterproof layer, a silk thread layer and a waterproof film, the resin filling layer is arranged at the top of the paper base layer, the grinding layer is arranged at the top of the resin filling layer, and the bonding layer is arranged at the bottom of the bonding layer. A bonding layer is arranged on the top of the polishing layer, and a waterproof layer is arranged on the top of the bonding layer. According to the novel waterproof and grinding-resistant abrasive paper, the waterproof layer is installed, waterproof treatment can be conducted on the surface of the grinding layer, the situation that water permeates into the paper base layer from the grinding layer to wet the abrasive paper is delayed, the waterproof performance of the abrasive paper is improved, the resin filling layer is installed, protection is conveniently provided for the paper base layer, and then the overall waterproof performance of the abrasive paper is improved; and the waterproof film is installed, further waterproof protection is provided for the abrasive paper, the situation that water immerses into the abrasive paper along gaps between the paper base layer and all the layers is reduced, and the use quality of the abrasive paper is improved.