Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

1637 results about "Abrasive" patented technology

An abrasive is a material, often a mineral, that is used to shape or finish a workpiece through rubbing which leads to part of the workpiece being worn away by friction. While finishing a material often means polishing it to gain a smooth, reflective surface, the process can also involve roughening as in satin, matte or beaded finishes. In short, the ceramics which are used to cut, grind and polish other softer materials are known as abrasives.

Air pressure imitating mode ultrasonic-assisted core-shell type abrasive magneto-rheological composite polishing machining and manufacturing method and device

The invention relates to an air pressure imitating mode ultrasonic-assisted core-shell type abrasive magneto-rheological composite polishing machining and manufacturing method, which comprises the following steps of: 1) selecting a workpiece clamp, and mounting the workpiece clamp on an ultrasonic vibration table; (2) the workpiece is clamped on a workpiece clamp, and the outer surface of the workpiece is wrapped with a flexible polishing sleeve; (3) preparing a polishing solution of a novel composite grinding and polishing abrasive material with core-shell type nano magnetic particles-abrasive particles, and placing the polishing solution in a polishing solution supply device; (4) an airflow auxiliary module is started, the flexible polishing sleeve is made to be highly matched with the shape of the workpiece under the assistance of high-pressure gas, and a'simulation flexible grinding tool 'similar to the shape of the surface of the workpiece is formed; 5) starting a magnetic field control system; and (6) the ultrasonic transducer is started, the ultrasonic vibration table drives the workpiece to vibrate at a high frequency, and fretting friction of relative movement is generated between the workpiece and the imitation flexible grinding tool. Meanwhile, a matched device is provided. The machining efficiency is improved, and the problems of abrasive particle holding force regulation, efficient grinding and polishing of workpieces of different materials and shapes and the like are solved.
Owner:HEFEI UNIV OF TECH

Silicon carbide polishing solution containing composite silica sol abrasive as well as preparation method and application of silicon carbide polishing solution

The invention relates to the technical field of material processing, in particular to a silicon carbide polishing solution containing a composite silica sol abrasive as well as a preparation method and application of the silicon carbide polishing solution. The silicon carbide polishing solution containing the composite silica sol abrasive comprises the following components in percentage by mass: 1%-20% of the composite silica sol abrasive, 0.01%-1% of a dispersing agent, 0.1%-10% of an oxidizing agent, 1%-20% of an auxiliary oxidizing agent, 0.001%-0.1% of a pH regulator and the balance of deionized water, the composite silica sol abrasive material comprises at least two kinds of silica sol with the particle size difference being 50 nm or above. Silica sol with different particle sizes is adopted to prepare the irregular composite abrasive material, the irregular composite abrasive material is matched with various assistants to improve the dual effects of chemical oxidation and mechanical friction, the mechanical friction point and wear resistance of the silicon carbide polishing solution can be enhanced, meanwhile, surface scratches and damaged layers of wafers are not prone to being caused in the polishing process, and the surface roughness is low.
Owner:QUZHOU BOLAINARUN ELECTRONIC MATERIALS CO LTD

Ceramic composite material and preparation method thereof

The invention relates to the technical field of ceramic materials, in particular to a ceramic composite material and a preparation method thereof.The ceramic composite material is prepared from, by weight, 30-35 parts of silicon carbide, 15-20 parts of boron nitride, 10-15 parts of silicon dioxide, 8-11 parts of additive based on modified filler and 7-10 parts of ball milling agent based on sodium alginate reconditioning modification. According to the ceramic composite material, silicon carbide and boron nitride are matched with silicon dioxide, the additive based on the modified filler and the ball-milling agent based on sodium alginate reconditioning modification are blended and coordinated, and through coordination and synergism of the raw materials, the obtained product can achieve coordinated improvement of strength, wear resistance and thermal conductivity; and the product has remarkable heat-resistant and corrosion-resistant stability effects.
Owner:ZHONGKE BAOLU NEW MATERIALS (LIAONING) CO LTD

Abrasive article, abrasive system and method for using and forming same

An abrasive article includes a body and an electronic assembly coupled to the body, the electronic assembly including an electronic device, and a first portion between the body and the communication device, the first portion having a material of an average relative magnetic permeability of not greater than 15.
Owner:SAINT GOBAIN ABRASIVES INC +1

Nano aluminum oxide polishing solution for silicon carbide substrate slice as well as preparation method and application of nano aluminum oxide polishing solution

The invention relates to a nanometer aluminum oxide polishing solution for a silicon carbide substrate slice as well as a preparation method and application of the nanometer aluminum oxide polishing solution. The nano aluminum oxide polishing solution is prepared from the following components in percentage by weight: 0.5 to 6.0 percent of alpha-Al2O3 abrasive, 0.5 to 5.0 percent of oxidant, 0.1 to 1.0 percent of pro-oxidant, 0.05 to 0.50 percent of pH (Potential of Hydrogen) regulator, 0.10 to 0.50 percent of dispersing agent and the balance of water, the D10 of the alpha-Al2O3 grinding material ranges from 0.100 to 0.140 [mu] m, the D50 of the alpha-Al2O3 grinding material ranges from 0.180 to 0.230 [mu] m, the D90 of the alpha-Al2O3 grinding material ranges from 0.240 to 0.300 [mu] m, the D100 of the alpha-Al2O3 grinding material ranges from 0.340 to 0.420 [mu] m, and The preparation method of the alpha-Al2O3 abrasive material comprises the following steps: preparing alpha-Al2O3 powder into alpha-Al2O3 slurry, adding potassium citrate, grinding, and carrying out particle classification on the alpha-Al2O3 slurry after grinding, so as to obtain the alpha-Al2O3 abrasive material. Compared with the prior art, graded alpha-Al2O3 is selected as abrasive particles for silicon carbide polishing, potassium permanganate with higher oxidability is selected as an oxidizing agent, and the prepared nanometer aluminum oxide polishing solution is applied to chemical mechanical polishing of a silicon carbide substrate slice; the surface roughness of the silicon carbide substrate slice is reduced while the removal rate of the silicon surface material of the silicon carbide substrate slice is improved, and the atomic-scale smooth surface quality is obtained.
Owner:SHANGHAI UNIV OF ENG SCI +1

Graphene composite nanoparticle abrasive flexible fluid electric field-ultrasonic auxiliary polishing method and device

A graphene composite nanoparticle abrasive flexible fluid electric field-ultrasonic auxiliary polishing method comprises the following steps that S1, primary chemical bonding and graft copolymerization of graphene and nanoparticles are achieved through a dynamic high shear field-ultrasonic synergistic induction method; and then compounding the primary abrasive material and the secondary graphene into the graphene composite nano-particle abrasive material of a multi-layer structured coating system with a core-shell structure through a dynamic high shear field-ultrasonic synergistic induction method. S2, arranging and moving of the particles on the surface are adjusted by applying an electric field; s3, ultrasonic waves are applied in the polishing process, contact between particles and the surface is improved, and surface defects are removed; and S4, the micro state of the abrasive particles and the surface state of the workpiece in the polishing process are tracked. The invention further provides a device for implementing the method. The polishing precision, the surface smoothness, the polishing speed and the polishing uniformity are improved, and the energy consumption is reduced; the polishing consistency and stability are improved, the machining cost is reduced, and the rejection rate is reduced.
Owner:HEFEI UNIV OF TECH

Gradient gradient powder material as well as preparation method and application thereof

The invention discloses a gradient gradual change type powder material as well as a preparation method and application thereof. The gradient gradual change type powder material comprises a non-metal core, a transition layer, a gradual change layer and a modification layer. The gradient powder material provided by the invention shows excellent strength-ductility synergistic effect, high fracture toughness and enhanced fatigue, wear and corrosion resistance, is good in metal wettability, can effectively reinforce a metal matrix and improve the performance of the metal matrix, can also be well dispersed in resin, and can be applied to the field of metal materials. The gradient powder material disclosed by the invention has a wide application prospect, and can be applied to the fields of heat dissipation of electronic devices, high-speed cutting tools, grinding material and grinding tool materials, high-temperature protection materials and the like.
Owner:HUNAN XINJUNENG TECHNOLOGY CO LTD

Ball-milling screening machine for ceramic preparation

The utility model relates to the technical field of ceramic processing, and discloses a ball-milling screening machine for ceramic preparation, which comprises an equipment main body, the equipment main body comprises two groups of equipment brackets, a barrel body, a driving device, a transmission belt and grinding balls, the equipment brackets are arranged at an interval, the barrel body is arranged between the two groups of equipment brackets, and the driving device is arranged on the barrel body. The driving device is arranged in the barrel body, the transmission belt is arranged at the output ends of the barrel body and the driving device in a sleeving manner, the grinding ball is arranged in the barrel body, feeding ports are formed in the top of the barrel body at intervals, and discharging ports are formed in the bottom of the barrel body at intervals. Limiting is conducted through the protruding filter plate, so that qualified abrasive materials are conveyed to the designated position, meanwhile, the situation that the abrasive materials meeting the specification are excessively ground can be effectively reduced, and the situation that interference is caused to the abrasive materials which are not ground completely is greatly reduced.
Owner:ZIBO ZHITAO NEW MATERIAL TECHNOLOGY CO LTD

Grinding pad for rough polishing of CVD diamond and preparation method of grinding pad

The invention belongs to the technical field of grinding tools, and relates to a grinding pad for CVD diamond rough polishing and a preparation method thereof.The grinding pad comprises a substrate and grinding blocks which are arranged on the substrate and provided with flat top faces, and the ratio of the diameter or the side length of each grinding block to the gap distance of the adjacent grinding blocks is (10-15): (1-1.5); the top of the grinding block is chamfered; the grinding block is prepared from the following raw materials: a diamond-silicon carbide grinding material, a binder, glass fibers and a filler; the roundness of the diamond-silicon carbide grinding material is 0.80-0.85, and the D50 particle size of the diamond-silicon carbide grinding material is 40-60 microns; the grinding pad has high strength and modulus, good stability and high grinding and polishing efficiency. The grinding blocks of the grinding pad are densely distributed, the grinding part is large, the grinding blocks are provided with chamfers and gaps, the CVD diamond can be prevented from being scratched in the polishing process, and chippings can be removed; the grinding material in the grinding pad is high in strength, good in self-sharpening performance and good in holding force, and therefore it can be guaranteed that the grinding pad has high grinding capacity in the rough polishing process, and the machining effect is good.
Owner:HENAN UNION ABRASIVES

System and method for health monitoring of a sanding pad during an autonomous finishing process

A method includes: accessing a toolpath and processing parameters—including a target force and feed rate—assigned to a region of a workpiece; and accessing a wear model representing abrasive degradation of a sanding pad arranged on a sanding head. The method also includes, during a processing cycle: accessing force values output by a force sensor 199 coupled to the sanding head; navigating the sanding head across the workpiece region according to the toolpath and, based on the force values deviating the sanding head from the toolpath to maintain forces of the sanding head on the workpiece region proximal the target force; accessing contact characteristics representing contact between the sanding pad and the workpiece; estimating abrasive degradation of the sanding pad based on the wear model and the sequence of contact characteristics; and modifying the set of processing parameters based on the abrasive degradation.
Owner:GRAYMATTER ROBOTICS INC

Aluminum nitride ceramic polishing process

The invention belongs to the technical field of grinding and polishing, and particularly relates to an aluminum nitride ceramic polishing process. The polishing process comprises the following steps that the aluminum nitride ceramic substrate is placed on a polishing pad, and polishing liquid is added for polishing; the polishing solution is prepared from the following components in parts by weight: 15-20 parts of a composite abrasive, 2-4 parts of an oxidant, 8-10 parts of a functional compound and 60-70 parts of water are mixed into a solution, and the pH value of the solution is adjusted to be 4-4.5 by using organic acid; the polishing solution provided by the invention has good suspension stability and antibacterial performance, the polishing solution is used for polishing the aluminum nitride ceramic substrate, the polishing rate is high, the polishing effect is good, and the aluminum nitride ceramic substrate which is small in surface roughness and free of scratches can be obtained.
Owner:COFFEY MATERIALS TECH (ZHEJIANG) CO LTD

Efficient and environment-friendly chemical polishing solution and preparation method thereof

The invention relates to the technical field of polishing solutions, in particular to an efficient and environment-friendly chemical polishing solution and a preparation method thereof. The chemical polishing solution comprises the following raw materials in percentage by weight: 5%-8% of a nano metal abrasive, 2%-4% of a silicon oxide abrasive, 2%-10% of an oxidizing agent, 1%-5% of a complexing agent, 0.05%-0.5% of a corrosion inhibitor and the balance of deionized water. The chemical polishing solution further comprises a pH regulator, and the pH of the chemical polishing solution is regulated to 7.5-8.5 by adopting the pH regulator. The chemical polishing solution disclosed by the invention adopts environment-friendly raw materials, shows a good polishing effect when being used for precision machining of the monocrystalline silicon wafer, and is high in material removal efficiency, and the polished silicon wafer is smooth in surface and free of damage.
Owner:LONGXING POLISHING MATERIALS (DONGGUAN) CO LTD

Device for testing functional coating of microcrystalline glass of induction cooker

The invention relates to the technical field of coating testing devices, and particularly discloses an induction cooker glass ceramic functional coating testing device which comprises a base and a detection box located on the base, a detection cavity is formed in the detection box, a testing table is arranged in the detection cavity, and the testing table comprises a testing execution mechanism and a testing placement seat; the test execution mechanism comprises a friction disc, an electromagnetic coil is arranged in the friction disc, and a groove which is spirally distributed is formed in the bottom of the friction disc; the test placement seat comprises a loading table of which the middle of the top is provided with a to-be-tested coating panel in a position corresponding to the friction disc, the periphery of the top of the loading table is provided with a convex check ring, the upper part of the convex check ring is provided with a nozzle corresponding to the to-be-tested coating panel, and the nozzle is communicated with a storage tank arranged at the bottom of the loading table through a pressurizing pipeline; a magnetorheological abrasive is stored in the storage tank; the device has the advantages of high test precision and real test simulation.
Owner:SICHUAN LEADING GLASS CERAMIC TECH CO LTD

Welding type seamless metal screen cloth polishing wheel

The utility model relates to the technical field of blade polishing wheels, and discloses a welding type seamless metal screen cloth polishing wheel which comprises a wheel core, an elastic base body is arranged on the outer layer of the wheel core, and a grinding material shell covers the outer layer of the elastic base body. The grinding material shell comprises metal screen cloth, a group plating layer is arranged on the lower layer of the metal screen cloth, a film structure is arranged on the surface of the metal screen cloth, a plurality of grinding material seats are arranged on the film structure, nickel electroplating layers are arranged on the grinding material seats, and grinding materials are arranged on the nickel electroplating layers. According to the welding type seamless metal mesh polishing wheel, the seamless polishing wheel can be prepared through the rubber bag forming technology, the service life of the polishing wheel is further prolonged, meanwhile, through the electroplating method and the like, the abrasive base in the abrasive shell is formed after forming, the consistency of the shape of the abrasive base and the overall theoretical appearance of the polishing wheel is better, and the polishing effect is better. And the polishing wheel with higher precision can be further prepared through forming and grinding.
Owner:SHANDONG TIANZHOU PRECISION MASCH CO LTD

Low-temperature-resistant polycarbonate abrasive material and preparation method thereof

PendingCN119463448AGlass fiberAntioxidant
The invention relates to the field of composite materials, in particular to a low-temperature-resistant polycarbonate abrasive material and a preparation method thereof. The low-temperature-resistant polycarbonate abrasive material is prepared from the following raw materials in parts by weight: 75 to 85 parts of polycarbonate, 15 to 20 parts of organic silicon-polycarbonate copolymer, 3 to 6 parts of flexibilizer, 12 to 15 parts of modified wear-resistant glass fiber, 1 to 1.5 parts of coupling agent, 0.3 to 0.5 part of antioxidant and 0.3 to 0.5 part of compatilizer. By optimizing a formula and a process, the low-temperature-resistant polycarbonate abrasive material with excellent mechanical properties, low-temperature-resistant toughness, wear resistance and environmental protection performance is prepared, and the low-temperature-resistant polycarbonate abrasive material has a wide application prospect and an important technical value.
Owner:XIAMEN YUANMI NEW MATERIAL TECH CO LTD

Modeling method for predicting surface roughness of silicon modified silicon carbide processed by small grinding head

The invention relates to a modeling method for predicting surface roughness of silicon modified silicon carbide processed by a small grinding head, which relates to the technical field of optical manufacturing and comprises the following steps of: i, analyzing pressure intensity distribution between a grinding disc and a workpiece; step ii, calculating the press-in depth of the grinding material according to the maximum value of the pressure intensity distribution; and iii, establishing a surface roughness physical model by combining the motion trail length of the grinding material and the press-in depth of the grinding material. The modeling method for predicting the surface roughness of the silicon modified silicon carbide processed by the small grinding head is not limited to prediction of a roughness physical model of a silicon modified silicon carbide material polished by the small grinding head of a robot; and the method is also suitable for predicting the roughness physical model of metal or hard and brittle materials processed by equipment such as other numerical control processing machine tools and guiding actual processing.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

High-consistency cutter passivation process and device based on flexible abrasive auxiliary force rheological polishing

The invention discloses a high-consistency cutter passivation process and device based on flexible abrasive auxiliary force rheological polishing, and relates to the technical field of cutter passivation. The process comprises the following steps: step 1, preparing a gradient grinding material; step 2, programmable fiber flow control; 3, multi-stage gradient machining; and 4, intelligent closed-loop control. The device comprises a gradient abrasive material preparation module, a programmable fiber flow control device, a multi-degree-of-freedom machining platform, an intelligent monitoring module, a polishing solution circulation module and a protection module. Through the three-stage abrasive grain grading and programmable fiber flow control technology, magnetic particles and an external magnetic field do not need to be relied on, the agglomeration state of the polishing solution is directly damaged through fiber vibration, the fluid flow speed of a complex cutting edge area is increased, abrasive grain distribution uniformity is improved, laser confocal real-time monitoring and PID algorithm dynamic adjustment are combined, the precision is remarkably improved, and the polishing effect is good. And the method is particularly suitable for precise passivation of superhard cutters such as PCD cutters and the like.
Owner:ZHEJIANG LANGCHAO PRECISION MACHINERY

Efficient precise metal material laser cutting machining device

The invention belongs to the technical field of laser cutting, and particularly relates to an efficient precise metal material laser cutting machining device which comprises a bottom plate, a conveying device, an infrared sensor and a workpiece to be machined which is fixedly mounted at the top of the bottom plate and is internally conveyed through two groups of conveying belts. Through cooperative work of a moving mechanism and an inner supporting mechanism, a stepping motor is used for precisely controlling a threaded clamping rod to rotate, a movable block drives a connecting rod to stably clamp the two ends of a to-be-machined workpiece, meanwhile, the inner supporting mechanism enables a second movable plate to expand outwards through lead screw transmission, a silica gel layer is tightly attached to the inner wall, and it is ensured that the workpiece is stably positioned before cutting; the cutting mechanism flexibly adjusts the position of an arc-shaped semi-circle plate through a guide rail I, and is combined with linkage of a stepping motor and a driving motor, so that a laser head accurately moves along the periphery of the workpiece to be machined, and efficient cutting is realized; and the auxiliary mechanism is matched with the grinding mechanism, the position of the cutting piece is automatically adjusted, a material grinding plate is used for grinding, the production efficiency is effectively improved, and manual intervention is reduced.
Owner:LUBEI TECHNICIAN COLLEGE (BINZHOU AVIATION SECONDARY VOCATIONAL SCHOOL BINZHOU ENTREPRENEURSHIP UNIV BINZHOU ENTREPRENEURSHIP INCUBATION CENT)

Cosmetic glass bottle surface polishing method and system

The invention discloses a cosmetic glass bottle surface polishing method and system, and the method comprises the steps: carrying out gradient mesh abrasive composite modification on a sand leather base material, and carrying out three-dimensional cutting according to the surface curve contour of a glass bottle through a laser cutting technology to form a composite sand leather polishing piece; the composite sand leather grinding piece is assembled at the executing end of a six-axis linkage mechanical arm, partition differentiated grinding is carried out according to the surface pollutant distribution density image recognition result, and a glass bottle rough blank obtained after preliminary grinding is obtained; performing synchronous purging on the surface of the glass bottle rough blank by adopting inert gas flow with a micro-bubble generation device, and controlling the composite sand leather polishing piece to perform micro-vibration at the same time, so as to obtain a glass bottle semi-finished blank; and the glass bottle semi-finished blank is placed in a sealed cavity to be sprayed, final polishing is carried out in cooperation with pulse type ultrasonic vibration, and a cosmetic glass bottle finished product is obtained. According to the embodiment of the invention, high-precision grinding of the curved surface of the glass bottle can be realized, and the surface cleanliness and the gloss uniformity are improved.
Owner:ZHEJIANG MEIYI PACKAGING TECH CO LTD

Water jet combined drilling device and method thereof

The invention provides a water jet combined drilling device and a method thereof.The device comprises a combined drilling tool, a drilling machine body, a pneumatic spiral sand supply system, a low-pressure water supply unit and a high-pressure jet water power unit, the drilling machine body is provided with the combined drilling tool and a pipeline for high-pressure water and abrasive materials to pass through inside a drilling rod, and the low-pressure water passes through the outer side of a drilling bit; the high-pressure water pipeline channel is connected with the high-pressure jet water power unit through a swivel joint; the low-pressure water channel is connected with a low-pressure water supply unit through a swivel joint; the mixed abrasive medium channel is connected with the pneumatic spiral sand supply system through a swivel joint; the pneumatic spiral sand supply system specifically comprises a pressurizing device, a sand tank and a spiral stirring device, the spiral stirring device is arranged in the sand tank, grinding materials in the pneumatic spiral sand supply system are evenly stirred through the spiral stirring device, then the airtight gas tank is pressurized, the grinding materials flow out through the bottom and flow to a jet flow nozzle through a pipeline to be jetted out, the pressure of a supply pipeline is increased, and the grinding materials are evenly stirred. And grinding materials are uniformly mixed, and the cutting effect is improved.
Owner:SHANDONG UNIV

Magnetic abrasive material with core-shell structure and preparation method of magnetic abrasive material

The invention provides a core-shell structure magnetic abrasive and a preparation method thereof, and belongs to the technical field of magnetic abrasive preparation. According to the core-shell structure magnetic abrasive provided by the invention, through the arrangement of the core-shell structure, the magnetic abrasive has regular morphology and size, and irregular morphology and uncontrollable particle size caused by later processing are avoided; the transition bonding layer is arranged on the surface of the ferromagnet core, so that the hard phase is uniformly distributed on the surface of the ferromagnet, and the problem of uneven distribution of the hard phase is avoided; the transition bonding layer is connected with the hard phase through metallurgical bonding, the ferromagnet and the hard phase are tightly connected together, a magnetic channel is established through the formed intermetallic compound interface diffusion layer, the magnetic dilution effect of the hard phase is weakened, and the magnetic performance of the magnetic abrasive is remarkably enhanced.
Owner:LANZHOU UNIVERSITY OF TECHNOLOGY

Grinding fluid as well as preparation method and application thereof

The invention provides a grinding fluid, the grinding fluid comprises a base fluid, a grinding material, nano-diamond and a dispersion stabilizer, the base fluid comprises polyether and silicone oil, the grinding material comprises surface modified silicon carbide particles, and the dispersion stabilizer comprises polyethylene glycol stearate and polyvinylpyrrolidone. The surface roughness of a grinding piece can be reduced, the scratch density and microcracks of the surface are reduced, damage of grinding fluid to the grinding piece is reduced or even avoided, and the service life of a cutter can be prolonged. The invention also provides a preparation method of the grinding fluid and a process method using the grinding fluid.
Owner:湖南德智新材料股份有限公司

Celadon glaze water, ceramic and preparation method thereof

The invention relates to the technical field of ceramics, in particular to celadon glaze water, ceramics and a preparation method thereof, and the preparation method comprises the following steps: preparing the celadon glaze water: preparing 10-15 parts of cooked talc, 5-8 parts of an additive modifier, 4-7 parts of ball clay, 4-7 parts of modified dolomite, 2-4 parts of Longquan porcelain clay, 2-4 parts of zinc oxide and 2-4 parts of tin oxide; the ceramic of the celadon glaze water is prepared by the following steps: blending potassium feldspar, quartz, kaolin and bentonite, and carrying out wet ball milling to obtain a ball-milled material; the preparation method comprises the following steps: by taking calcined talc, ball clay, Longquan porcelain clay, zinc oxide and tin oxide as matrix materials, adding a modifier and modified dolomite as functional aids, and blending and coordinating the matrix materials and the functional aids, obtaining the celadon glaze water with excellent surface wear resistance and impact strength.
Owner:DEHUA MINYIN CULTURAL CREATIVITY CO LTD

Vibration grinding method and device

A vibration grinding method and device, a rotating frame driven by power or freely rotating is arranged above a cylinder body of a vibration grinder that is driven by power and filled with abrasive, and several connecting rods with connecting components are arranged below the rotating frame. The workpiece (such as a metal handle) is fixed on the connecting rod through the connecting component and the workpiece is extended into the abrasive in the cylinder body. When the vibration grinder is working, the surface of the workpiece is polished, and the vibration of the cylinder body drives the abrasive to flow, and the flowing abrasive drives the workpiece to move, so that the rotating frame also rotates, and the workpiece is polished. Compared with the existing technology, the present invention has the advantages of effectively avoiding the workpieces from touching each other and ensuring the polishing quality.
Owner:江门金钻辉精密铸造有限公司

Abrasive product

This specification relates to a solution for overcoming the problem of loose loops formed by cutting the abrasive products. A method of obtaining an abrasive product (100) is provided. The method comprises providing a substrate (101, 201, 301) having a first surface (101a, 201a, 301a) and a second surface (101b, 201b, 301b, 501b), providing abrasives (102, 202, 302) on the first surface (101a, 201a, 301a) of the substrate and providing loops (103, 203, 303) on the second surface (101b, 201b, 301b, 501b) of the substrate. The method further comprises providing a melted and / or burnt area (304, 404, 504) on the second surface (101b, 201b, 301b, 501b) of the substrate by melting and / or burning the loops, and cutting the substrate (101, 201, 301) in order to provide the abrasive product (100). Further, the abrasive product (100) is provided.
Owner:KWH MIRKA LTD

Composite abrasive nickel-phosphorus grating microstructure shape-preserving polishing method

The invention discloses a shape-preserving polishing method for a nickel-phosphorus grating microstructure of a composite abrasive. The shape-preserving polishing method comprises the following steps: (1) preparing a composite abrasive polishing solution; (2) cleaning the surface of the workpiece, and fixing the workpiece on a polishing platform; (3) setting a spiral machining path, a polishing load and polishing time; and (4) a polishing pad with the high hardness is matched with the composite abrasive polishing solution to polish a workpiece, and then a polishing pad with the low hardness is matched with the composite abrasive polishing solution to polish the workpiece. According to the shape-preserving polishing method, by regulating and controlling the conditions of the median particle size of Al2O3, the content of Al2O3, the pH value, the content of an oxidizing agent, the combination of soft and hard polishing pads and the like, the shape of a microstructure is considered while residual tool marks are removed and the surface roughness is reduced, and shape-preserving polishing is achieved.
Owner:SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Anti-clogging ceramic sandpaper and preparation method thereof

The present invention relates to the field of coated abrasive technology, specifically to anti-clogging ceramic sandpaper and its preparation method. The technical key features are as follows: from bottom to top, it comprises: latex paper, a base glue, abrasive, a double glue, and an anti-clogging coating. The anti-clogging coating is prepared from the following components, calculated by weight: 30-50 parts aqueous emulsion, 10-15 parts graded filler, 3-5 parts dispersant, 2-3 parts water-soluble curing agent, and 60-70 parts water. The graded filler is ceramic corundum particles with the following gradation: particle size R < 250nm, 1-3%; 250≤R < 350nm, 65-75%; 350nm≤R < 450nm, 15-19%; 450≤R < 550nm, 3-5%. The anti-clogging ceramic sandpaper and its preparation method provided by the present invention significantly enhance the anti-clogging effect of the anti-clogging coating while effectively improving the sharpness and self-sharpening properties of the sandpaper surface.
Owner:NANTONG FENGMANG COMPOSITE MATERIAL TECH CO LTD

Abrasive articles and methods for forming same

A method for forming an abrasive article via an additive manufacturing technique including forming a layer of powder material comprising a precursor bond material and abrasive particles, compacting at least a portion of the layer to form a compacted layer, binding at least a portion of the compacted layer, and repeating the steps of forming, compacting, and binding to form a green body abrasive article.
Owner:SAINT GOBAIN ABRASIVES INC +1

Method for removing support structure

Removal of the support structure from the workpiece is in an easily automated way. A method for removing support structure includes: suspending abrasive into a process liquid; cutting a support structure along a cutting surface from an additively manufactured workpiece having a support surface, the support surface including the support structure for fixing the workpiece to a build platform; installing the workpiece with the support structure remaining on the support surface in the process liquid with suspended abrasive; immersing a nozzle for ejecting a cavitation jet of the process liquid into the process liquid; and ejecting the cavitation jet onto the workpiece from the nozzle immersed in the process liquid such that an angle between an ejection axis of the cavitation jet ejected from the nozzle and the support surface is between 0 to 20 degrees to remove the remaining support structure adhered to the workpiece.
Owner:SUGINO MACHINE

Micro-texturing functional curved surface machining method based on structured grinding tool

The invention belongs to the technical field of advanced manufacturing, and particularly relates to a microtexture functional curved surface machining method based on a structured grinding tool, which comprises the following steps of: determining an artificial joint type and an artificial joint surface microtexture array form; a grinding wheel is selected according to the microtexture array form; the grinding wheel is provided with an upper convex part and a lower concave part; mounting the artificial joint and the grinding wheel on a five-axis numerical control ultra-precision machine tool; setting a moving track of a grinding wheel according to the artificial joint type; and polishing the surface of the artificial joint to form a micro-texture array. The micro-texture array is machined on the surface of the artificial joint in a structured grinding mode, and the method has the advantages of being high in machining efficiency, good in process continuity, low in cost and the like, and is wide in applicability and high in flexibility.
Owner:HARBIN INST OF TECH +3