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87 results about "Diamond grit" patented technology

Intelligent control method and system for nickel plating layer thickness of diamond fretsaw

The invention discloses an intelligent control method and system for the thickness of a nickel plating layer of a diamond fretsaw, and relates to the technical field of intelligent control. The method comprises the steps that a combined nickel plating constraint space and a reinforced nickel plating constraint space of a combined nickel plating tank and a reinforced nickel plating tank are established; optimizing and generating combined nickel plating parameters of the combined nickel plating tank; executing a combined nickel plating process, detecting the thickness distribution of a combined nickel plating layer, completing a carborundum electroplating process, and detecting the carborundum distribution density; and dynamic reinforcing nickel plating parameters are generated and adjusted, a reinforcing nickel plating tank is configured according to the dynamic reinforcing nickel plating parameters, and a second nickel plating procedure is executed to achieve intelligent thickness control. The technical problems that the plating thickness control precision is insufficient, the product quality stability is poor and the production efficiency is low due to the fact that an existing diamond fretsaw nickel plating layer thickness control method cannot accurately adapt to bus base material characteristic fluctuation, plating solution state change and personalized requirements in the production process are solved.
Owner:HUNAN HONGSHENG INTELLIGENT EQUIPMENT CO LTD

Wafer heavy scratch three-dimensional shape repairing process based on DFG 8560 single-axis accurate grinding mode

The invention particularly discloses a wafer heavy scratch three-dimensional shape repairing process based on a DFG 8560 single-axis accurate grinding mode, and aims to solve the problems that deep subsurface damage is introduced by rough grinding in a traditional double-stage grinding process, the machining efficiency is low, and material waste is serious. The process comprises the following steps: identifying a heavy scratch defect existing on the surface of a wafer through an automatic optical detection system; a ceramic bond diamond grinding wheel with the particle size of 8000 is adopted, uniaxial accurate grinding is conducted through ultrapure water cooling under the optimized parameters that the rotating speed of a main shaft is 1300-2300 rpm, the rotating speed of a workbench is 1785-2100 rpm and the rotating speed ratio is 0.6-1.3, and three-dimensional shape repairing is directly completed by skipping rough grinding; the rotating speed and pressure of grinding are dynamically regulated and controlled in three stages, the total time is less than or equal to 135 seconds, and the removal amount is 6-12 microns. By the adoption of the technical scheme, the surface roughness Ra can be smaller than 0.5 nm, the subsurface damage layer can be smaller than 50 nm, the repair success rate is larger than 98.5%, the machining time is remarkably shortened by 35% or above, and the material removal amount is reduced by 40%.
Owner:ANHUI FULLERDE CHANGJIANG SEMICON MATERIALS CO LTD

A diamond grinding wheel with good heat dissipation

This utility model relates to the field of abrasive technology, specifically disclosing a diamond grinding wheel with good heat dissipation, including a base connected to a grinding machine; multiple grinding wheel blocks are fixedly connected to the lower end face of the base; the side of the base is provided with a protruding edge; a free ring is rotatably connected to the upper end of the base; a limit ring is detachably fixed to the free ring corresponding to the protruding edge; an inclined air duct is inclinedly connected to the upper surface of the free ring; an external air pump and air pipe are connected through the inclined air duct, so that air with a pressure greater than one atmosphere is supplied through the inclined air duct as a driving power source, while restricting the rotation of the inclined air duct and the free ring to keep them stationary. Then, the base and grinding wheel blocks are driven to rotate by the grinding machine spindle for grinding. Then, as the base rotates, the multiple inclined air holes are sequentially connected to the inclined air duct to transport high-speed flowing air. The heat generated by the grinding of the workpiece and grinding wheel blocks in the base keeps the workpiece and grinding wheel blocks at room temperature and prevents them from expanding and deforming, thus affecting the grinding accuracy.
Owner:ANHUI XIANGTAIXIN MATERIAL TECH CO LTD

Diamond grinding wheel for grinding lead screw

The utility model belongs to the technical field of diamond grinding wheels, and particularly relates to a diamond grinding wheel for grinding a lead screw. The grinding wheel comprises a base body and a grinding layer. Wherein the grinding layer comprises grinding teeth, a first grinding groove and a second grinding groove; the first grinding groove and the second grinding groove are symmetrically formed in the two sides of the grinding teeth and are in smooth connection with the grinding teeth. According to the diamond grinding wheel for grinding the lead screw, the thread groove grinding part and the thread body grinding part are arranged on the grinding wheel at the same time, continuous thread grooves and thread body segments on the lead screw can be ground, and the grinding wheel is matched with translation of the grinding wheel and rotation of the lead screw and the grinding wheel; and grinding machining of all parts on the spiral groove of the lead screw can be completed at the same time.
Owner:DONGGUAN GUANFENG DIAMOND PROD CO LTD

Sand feeding and liquid spraying device of carborundum groove

The utility model provides an emery feeding liquid spraying device of an emery groove, which comprises a cleaning box, a fixing frame and a bottom plate, the rear end of the fixing frame is fixedly connected with an electric push rod, the telescopic end of the electric push rod is fixedly connected with a sliding seat, the rear end of the fixing frame is fixedly connected with four fixing blocks, and a sliding rod is fixedly connected between every two groups of fixing blocks. By means of the design, the problems that when an original device conducts grinding treatment on a carborundum groove, omission occurs when grinding equipment grinds the carborundum groove due to the fact that the structure of the carborundum groove is complex, operation needs to be conducted many times, the working time is prolonged during machining, and the machining efficiency of the carborundum groove is affected are solved, and the carborundum groove grinding device is reasonable in structure, convenient to operate and high in practicability. The device is simple in structure and good in practicability, impurities on the surface of the carborundum groove can be effectively removed by uniformly spraying the gravel on the surface of the carborundum groove, so that the surface cleaning efficiency of the carborundum groove is improved, and the machining speed is reduced.
Owner:ZHEJIANG XINRUIXIN PRECISION WIRE SAW CO LTD

Automatic deburring device for bearing bush blank

The utility model discloses an automatic deburring device for a bearing bush blank, and particularly relates to the technical field of deburring, the automatic deburring device comprises a deburring frame, a sliding plate and a supporting block, the sliding plate is located above the deburring frame, the supporting block is fixedly located on the outer wall of the sliding plate, and a displacement deburring assembly is arranged on the upper surface of the supporting block; the displacement deburring assembly comprises a displacement motor, a displacement block, a frame table, a rotating motor, a rotating shaft, a transmission shaft and a plurality of diamond abrasive belts. The displacement motor is fixed to the upper surface of the supporting block, and the displacement block is fixed to the output end of the displacement motor. The displacement deburring assembly is adopted, the displacement motor drives the displacement block to rotate forwards and backwards in a reciprocating mode, the rotating motor enables the rotating shaft to rotate forwards and backwards in a reciprocating mode, a plurality of diamond abrasive belts can transversely move to conduct deburring on a plurality of bearing bush blanks from different angles and directions, the deburring directions are more, and the deburring effect is better.
Owner:JIANGSU FEIYUE BEARINGS

Diamond grinding wheel grinding clamp

The utility model discloses a diamond grinding wheel grinding clamp, which relates to the technical field of grinding clamps and comprises a base, a limiting plate is mounted at the upper end of the base, a connecting box is mounted at the upper end of the limiting plate, a top plate is mounted at the upper end of the connecting box, and sliding plates are mounted at four corners of the lower end of the top plate. Sliding boxes are installed at the four corners of the upper end of the base correspondingly, a connecting block is installed in the center of one side of the top plate, a spiral barrel is arranged on one side of the upper end of the base, a spiral rod is installed in the spiral barrel, a gear is installed on one side of the spiral barrel, and a stepping motor is arranged at the lower end of the gear. The diamond grinding wheel grinding clamp has the advantages that the diamond grinding wheel grinding clamp can quickly clamp and fix a workpiece, and the height of the workpiece can be adjusted, so that the diamond grinding wheel grinding clamp can collect scraps and waste liquid generated during grinding, can quickly discharge the scraps and the waste liquid, and is convenient to clean.
Owner:TAIZHOU XINGDA ABRASIVES CO LTD

Diamond grinding wheel for V-shaped groove machining and machining system and method

The invention belongs to the field of diamond grinding wheel machining, and particularly discloses a diamond grinding wheel for V-shaped groove machining and a machining system and method.The diamond grinding wheel comprises a grinding wheel base body, a grinding wheel cover, single crystal diamond abrasive particles and a reflecting mirror; a radial cylindrical low-light-path channel is machined in the grinding wheel base body, and the channel extends from the center of the grinding wheel to the area close to abrasive particles in the circumferential direction in the radial direction. The single crystal diamond abrasive particles are directionally adhered along the side surface of one circle of the grinding wheel according to the uniform direction and the equal circumferential distance, and one single crystal diamond abrasive particle is adhered to the tail end of each channel; the adjacent sharp ridges of the single crystal diamond abrasive particles jointly form a V-shaped forming blade with a uniform included angle; the reflecting mirror is installed in the center of the grinding wheel cover or close to the center of the grinding wheel cover.
Owner:SHANDONG UNIV

Metal-based ceramic bond diamond grinding wheel and preparation method thereof

The invention relates to the field of machine manufacturing, and particularly discloses a metal-based ceramic bond diamond grinding wheel and a preparation method thereof.The metal-based ceramic bond diamond grinding wheel comprises the following raw materials of a diamond grinding material, a reinforcing phase and a composite bond; wherein carbon fibers are selected as the reinforcing phase, the composite binding agent comprises a metal binding agent and the balance of ceramic binding agent, and the ceramic binding agent comprises the following raw materials of calcium fluoride, aluminum fluoride, lithium borate, boric acid and the balance of silicon dioxide; the preparation method comprises the following steps: S1, premixing the diamond grinding material and the reinforcing phase, then adding the composite binding agent, spraying a polyvinyl alcohol solution after mixing, and mixing and granulating to obtain granules; s2, the granules are loaded into a mold to be subjected to hot press molding to obtain a grinding wheel blank; and S3, sintering the grinding wheel blank at high temperature to obtain the metal-based ceramic bond diamond grinding wheel. The emery grinding wheel has the advantages that the abrasion resistance and the impact resistance of the grinding wheel are improved, and then the service life of the emery grinding wheel is prolonged.
Owner:ZHENGZHOU HONGTUO PRECISION TOOLS CO LTD

Diamond grinding wheel automatic trimming and balancing device of optical glass edge grinding machine

The invention discloses an automatic diamond grinding wheel trimming and balancing device of an optical glass edge grinding machine, and relates to the technical field of optical glass edge grinding equipment.The automatic diamond grinding wheel trimming and balancing device comprises an equipment base, a driving mechanism and a balance monitoring module, a supporting base, an intelligent control box, a sliding rail and a support are arranged on the equipment base, and the driving mechanism is installed on the inner side of the support and connected with a grinding wheel disc body; the balance monitoring module is installed in the center of the sliding rail, the intelligent control box and the support are provided with trimming discs with handle adjustment, and the driving mechanism clamps a grinding wheel through a motor, a fluted disc and other transmission structures; the variable speed motor drives the grinding wheel to rotate, the dressing discs on the two sides conduct synchronous grinding, the balance monitoring module captures unbalanced pressure fluctuation of the grinding wheel in real time and feeds back and early warning, synchronous linkage of dressing and monitoring is achieved, machining errors are avoided, and the optical glass edge grinding precision and the finished product percent of pass are improved.
Owner:HEFEI GUANGWEI OPTOELECTRONICS TECH CO LTD

Preparation method of high-entropy alloy laser brazing single-layer diamond grinding wheel

ActiveCN117862811BImprove connection strengthNot easy to cause graphitizationHigh entropy alloysCarbide
The application discloses a preparation method of a high-entropy alloy laser brazing single-layer diamond grinding wheel, and comprises the following steps: a grinding wheel steel base material is mechanically processed to obtain a grinding wheel steel base; Cr, Cu, Ni-Cr-B-Si and Ti powders are ball milled to prepare high-entropy alloy powder as a brazing filler metal; a tool forming blank is prepared in the order of the grinding wheel steel base as the bottom layer, the brazing filler metal as the middle layer and diamond abrasive particles as the upper layer; the brazing filler metal is heated to melt by laser in an inert gas environment; after cooling, the diamond abrasive particles are brazed and fixed on the surface of the grinding wheel steel base to obtain the single-layer diamond grinding wheel. After laser brazing, interface reaction between the surface of the diamond abrasive particles and the molten high-entropy alloy occurs, a metal carbide layer which is firmly combined with the surface of the diamond is formed, firm chemical and metallurgical bonding between the diamond and the brazing filler metal is generated, and thus the single-layer diamond grinding wheel is prepared, and the single-layer diamond grinding wheel has the advantages of good wettability of the brazing filler metal to the diamond, high production efficiency and small thermal damage of the diamond.
Owner:SUZHOU UNIV OF SCI & TECH

A laser welding apparatus for diamond grinding wheel processing

The application belongs to the technical field of laser welding equipment, and particularly discloses a laser welding device for diamond grinding wheel processing, which comprises a welding table, a mounting plate fixedly connected to the top of the welding table, and a laser welding gun mounted on the mounting plate; a rotating disc horizontally mounted on the top of the welding table; a fixing device comprising a chuck, a pressing rod, a clamping block and a driving assembly, the chuck being horizontally mounted on the top of the rotating disc and coaxial with the rotating disc, the top of the chuck being provided with a grinding wheel to be welded, the top surface of the chuck being uniformly and annularly provided with three mounting grooves, and the pressing rod and the clamping block being slidingly mounted in the mounting grooves. Through the linkage of the driving shaft, the screw rod, the shaft sleeve and other structures, the synchronous action of the inner and outer clamping is realized by single-power driving, the structure is compact and stable, the clamping efficiency is high, the device is suitable for the quick clamping of diamond grinding wheels of multiple specifications, and the complexity and the debugging difficulty of the device are reduced.
Owner:JIANGXI DINGHAI GRINDING WHEEL CO LTD

Root canal linear passage machine needle

The utility model relates to the technical field of medical instruments, and discloses a root canal linear passage bur, which comprises a drill bit, a bur body and a connecting part, the drill bit comprises a drill body and a drill tip, the drill body is detachably connected with the bur body, emery is sprayed on the outer wall of the drill body by adopting a sand blasting process, a first external thread is arranged on the outer wall of the drill tip, and the length of the drill tip is 2-3mm; the first external threads are arranged on the outer wall of the drill tip, and the corundum is sprayed on the drill body by adopting a sand blasting process, so that the drill tip can move more stably when being drilled into teeth due to the arrangement of the first external threads, the sprayed corundum can enhance the overall strength of the drill body, and meanwhile, the drill tip is prevented from being damaged. The drill bits and the needle body are detachably connected, so that a doctor only needs to prepare a plurality of drill bits of different models before an operation and replace the drill bits according to actual requirements in the operation process, and compared with the prior art, the drill has the advantages that the drilling capacity is good, the occupied area of an instrument tray is reduced, and the operation of the doctor is facilitated.
Owner:FUZHOU MEICHENG STOMATOLOGICAL HOSPITAL CO LTD

Single-layer abrasive particle diamond grinding wheel surface appearance random generation method

The invention relates to a single-layer abrasive particle diamond grinding wheel surface topography random generation method, which realizes the digital generation of the grinding wheel surface topography by establishing an abrasive particle size distribution, space distribution and exposure height three-dimensional parameter model based on the idea of combining statistical modeling and random simulation. By introducing truncated normal distribution to form an abrasive particle size distribution function and applying a three-dimensional random bias vector, random features of the size and position of the abrasive particles on the surface of the diamond grinding wheel are truly represented, the authenticity and applicability of the model are remarkably improved, the accuracy of the characterization modeling technology is improved, and the method is suitable for large-scale popularization and application. And the technical defect of machining damage caused by random distribution of the abrasive particles can be overcome.
Owner:NINGBO INST OF NORTHWESTERN POLYTECHNICAL UNIV

Alkali-free low-temperature sintered glass ceramic binding agent as well as preparation method and application thereof

The invention relates to a preparation method of an alkali-free low-temperature sintered glass ceramic binding agent. The preparation method comprises the following steps: 1) respectively carrying out ball-milling mixing on a fluxing component, a nucleating component and a high-temperature stable component; 2) preparing a melt, and adding a fluxing component at 1000 DEG C to form a melting system; adding a nucleation component at 1250 DEG C, and inducing the formation of a crystal nucleus by using the stability of the nucleation component at a high temperature; adding the high-temperature stable component at the temperature of 1400 DEG C; 3) carrying out quenching water quenching on the melt, drying, and crushing to obtain crude powder; and 4) refining the rough powder until D90 is less than or equal to 0.3 m to obtain the alkali-free low-temperature sintered glass ceramic binding agent. The water resistance and acid resistance of the diamond grinding wheel are improved through an alkali-free metal formula, the melting temperature of the binding agent is smaller than or equal to 750 DEG C, and the thermal expansion coefficient of the binding agent is matched with that of diamond; the microhardness and the breaking strength are improved through effective devitrification, and the service life of the diamond grinding wheel is prolonged by more than or equal to 30%.
Owner:ZHENGZHOU UNIV +1

An automatic grinding machine for the inner arc planer blade of a high-frequency welded pipe for refrigeration.

ActiveCN224445445UWorking environmentMachine
This utility model discloses an automatic grinding machine for inner arc planer blades used in refrigeration high-frequency welded pipes. It features a work cabinet with a worktable and a control console mounted on the work cabinet. The work cabinet houses a workpiece holder, a surface grinding frame, and an arc grinding frame. The workpiece holder moves along the X and Y axes, while the surface and arc grinding frames are located at two separate stations and move along their respective Z axes. A first distance-measuring and positioning device is mounted on the surface grinding frame, and a second distance-measuring and positioning device is mounted on the arc grinding frame. Employing an XYZ three-axis linkage + dual-station grinding system, the machine achieves automatic positioning, distance measurement, and grinding of the planer blade, improving processing accuracy and shape consistency. Precise control via diamond grinding wheels and PLC ensures that the dimensions and shape of the inner arc R conform to standards. The machine has a long service life and a user-friendly working environment. It is suitable for grinding planer blades of different specifications, offering strong versatility and high production efficiency.
Owner:浙江康盛科工贸有限公司

A method for manufacturing a metal-bonded diamond porous semiconductor thinning grinding wheel

The present application belongs to abrasive tool technical field, and particularly relates to a preparation method of metal-bonded diamond porous semiconductor thinning grinding wheel; the preparation steps of the present application include abrasive layer material preparation, agglomerate forming, agglomerate sintering and processing, agglomerate bonding or welding with a substrate, and post-processing to obtain a porous high-strength metal-bonded diamond thinning grinding wheel. The original hydrogen reduction pre-sintering metal-bonded abrasive is adopted, and the metal bonding agent and pore-forming agent are optimally selected; the prepared material is formed by machine pressing, and then sintered in a vacuum furnace at 600-900 DEG C; the substrate is bonded or welded, and the porous high-strength metal-bonded diamond grinding wheel is obtained after machining and processing. The performance of the grinding wheel exceeds the service performance of existing grinding wheels in SiC wafer thinning, sapphire thinning, monocrystalline silicon thinning and other semiconductor thinning applications.
Owner:郑州海科研磨工具有限公司

Grooving device for diamond grinding wheel production

The utility model relates to a grooving device for diamond grinding wheel production, which comprises a mounting case, the rear end face of the mounting case is fixedly connected with a mounting bracket, the top end face of the mounting bracket is fixedly connected with a hydraulic telescopic rod, and one end of the hydraulic telescopic rod is fixedly connected with a grooving motor. A main shaft of the grooving motor is fixedly connected with a grooving blade through a coupler, the inner side of the bottom end face of the mounting case is fixedly connected with a double-output-shaft motor, main shafts at the two ends of the double-output-shaft motor are both fixedly connected with driving lead screws, and the outer sides of the two driving lead screws are both provided with square lead screw sliding blocks; the screw rod sliding block is in fit sliding connection with the inner side wall of the bottom of the mounting case; in the grooving process, chippings generated by grooving can be sucked into the dust removal machine box through strong suction force generated by working of the air suction fan, the situation that the chippings splash to pollute the environment is avoided, the difficulty of later manual cleaning is lowered, and the filter screen can be pulled out through the sealing plate to treat the chippings.
Owner:KUNSHAN SHUOZHAN ELECTRONIC TECH CO LTD

Ceramic bond and method for preparing diamond grinding wheel by using same

The invention discloses a ceramic bond which comprises the following raw materials in parts by weight: 30-50 parts of silicon dioxide, 15-30 parts of boric acid, 4-6 parts of aluminum oxide, 4-8 parts of barium oxide, 5-10 parts of aluminum oxide, 5-10 parts of zinc oxide, 4-8 parts of sodium carbonate, 1-5 parts of calcium carbonate, 1-5 parts of magnesium oxide and 1-10 parts of lithium carbonate. The invention further discloses a diamond grinding wheel prepared from the ceramic bond. The diamond grinding wheel is prepared from the following raw materials in percentage by weight: 10-20% of the ceramic bond, 50-60% of diamond micro powder, 5-10% of white corundum, 10-20% of a pore forming agent and 5-15% of resin powder. The ceramic bond is low in firing temperature, tightly combined with diamond micro-powder and high in holding force, the porosity of the prepared diamond grinding wheel reaches 70%, the abrasive ratio is low, and meanwhile the stability is high in the using process.
Owner:SHANGHAI LANGRONG NEW MATERIALS CO LTD

A diamond grinding wheel dressing method and system

The present application relates to the field of grinding control, especially to a diamond grinding wheel dressing method and system. The method comprises the following steps: firstly, collecting the three-dimensional point cloud of the grinding wheel, and using a Kalman filtering mechanism combining wear model prediction and real-time data observation to accurately correct the three-dimensional point cloud to obtain the real wear state of the grinding wheel. Then, based on the corrected three-dimensional point cloud, an electrochemical activity degree for representing the electrolytic dressing efficiency of each point of the grinding wheel is calculated. Next, the electrochemical activity degree, the theoretical dressing amount of each point of the grinding wheel and the expected normal wear amount are taken as parameters, and an energy density matrix representing the dressing intensity requirement of each position of the grinding wheel is obtained by solving an objective function. Finally, the present application implements the adaptive and high-precision dressing of the grinding wheel by combining dynamic sensing and model prediction.
Owner:LUOYANG JIUJIU WEAR-RESISTANT MATERIAL MFG CO LTD +1

Thermal spraying preparation method of high-density low-roughness WC-Co coating

The invention discloses a thermal spraying preparation method of a high-density low-roughness WC-Co coating. The thermal spraying preparation method sequentially comprises the following steps that a workpiece to be sprayed is subjected to sand blasting roughening Ra to be 3.2-6.4 microns; the WC-Co powder (8-12% of Co, 50-150 microns) is deposited to 0.2-0.6 mm by an HVAF / HV-8000 system at the powder feeding amount of 70-100 g / min and the flame flow of 450-550 A / 30-35 V; epoxy / phenolic aldehyde hole sealing is carried out at 200 DEG C or below, and aluminum phosphate-based inorganic hole sealing is carried out at 200 DEG C or above; and grinding by using a diamond grinding wheel of 800-1200 meshes until Ra is 0.1-0.4 mu m. The porosity of the prepared WC-Co coating ranges from 0.3% to 1%, the hardness ranges from 1100 HV0.3 to 1450 HV0.3, the bonding strength is larger than or equal to 70 MPa, the deposition rate ranges from 45% to 55%, the WC-Co coating does not peel off after being subjected to thermal shock for 30 times at the temperature of 350 DEG C, and the WC-Co coating can be directly used for surface strengthening of a hydraulic valve element or a compressor rotor or an
Owner:ZHENGZHOU LIJIA THERMAL SPRAYING MACHINERY CO LTD

Grinding device and grinding method for producing diamond grinding wheel

The application belongs to the technical field of grinding equipment, and specifically discloses a grinding device and a grinding method for diamond grinding wheel production, which comprises a grinding table, an upper grinding mechanism is installed on the rear upper end of the grinding table, a grinding disc is installed on the upper grinding mechanism, a grinding shell is fixedly arranged at the upper end of the grinding table, a double-sided grinding assembly is arranged on the inner side of the grinding shell, a plurality of groups of side grinding assemblies are arranged on the upper side of the double-sided grinding assembly, the double-sided grinding assembly comprises a fixing frame fixedly arranged on the inner wall of the upper side of the grinding shell, and a motor is fixedly arranged on one side of the fixing frame. The double-sided grinding assembly and the side grinding assembly are used in cooperation, uniform contact is achieved, uneven wear of the grinding wheel is reduced, the wear speed of the grinding wheel is reduced, and the service life of the grinding wheel is prolonged. Meanwhile, the distance between the two groups of grinding pieces is adjustable, the side surface of the diamond grinding wheel in a certain thickness range can be changed, and the grinding treatment is more efficient.
Owner:HUBEI ZHONG TAI ABRASIVE TOOLS CO LTD

A high-efficiency low-loss grinding method for laser stripping 4H-SiC wafer

ActiveCN120727557BWaferMaterials science
The application discloses a kind of high-efficiency low-loss grinding methods of laser stripping 4H-SiC wafer, comprising the following steps: using laser to carry out directional modification treatment inside 4H-SiC crystal, form stripping layer, separate wafer from crystal;The wafer after laser stripping is observed microscopically, identifies its laser modification layer, structure transition layer and intrinsic SiC layer;According to the structure characteristics of different regions, set the feed parameters of segmented grinding, so that the feed speed of laser modification layer is greater than the feed speed of intrinsic SiC layer, and precision grinding is carried out using automatic thinning equipment and diamond grinding wheel.Layered feed strategy realizes the matching of machining parameters and material structure characteristics, effectively improves the stability of grinding process, surface quality and tool life.
Owner:SHANDONG UNIV

Method for preparing wear-resistant and corrosion-resistant coating on filter cloth tensioning roller surface

The application discloses a preparation method of a wear-resistant and corrosion-resistant coating of a filter cloth tensioning roller surface, and the method comprises the following steps: firstly, cleaning the surface of the filter cloth tensioning roller, and performing roughening treatment on the roller surface by using 46# white corundum sand; spraying ceramic powder on the roller surface of the filter cloth tensioning roller by using a plasma spraying device to obtain a ceramic coating; grinding and polishing the ceramic coating on the roller surface of the filter cloth tensioning roller by using a 400# diamond grinding wheel and 2000-mesh corundum abrasive belt respectively; roughening the ceramic coating to obtain uniform roughness; and finally, preparing a 1-3-micron wear-resistant and waterproof film on the surface of the ceramic coating on the roller surface to obtain the filter cloth tensioning roller surface with certain roughness and hardness. The method overcomes the defects of traditional surface treatment of the filter cloth tensioning roller, the ceramic coating is coated on the surface of the filter cloth tensioning roller, the bonding strength between the coating and the base body is high, the filter cloth tensioning roller surface is endowed with excellent wear resistance and corrosion resistance, and the online service life of the filter cloth tensioning roller is prolonged, and the water treatment cost is reduced.
Owner:SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE

High-density nickel magnesia target material and method for manufacturing the same

The application belongs to the field of perovskite solar cell materials, and discloses a high-density nickel-magnesium oxide target material and a preparation method thereof. The preparation method comprises the following steps: NiO powder and MgO powder are proportioned according to the atomic percentage of Mg of 0.1-10 at%, the prepared powder is loaded into a double-motion mixer for homogenizing mixing treatment, then the uniformly mixed powder is cold-pressed to 5-10 MPa, vacuumized to less than 10 Pa, heated to 300-400 DEG C for heat preservation and pretreatment, heated to 1000-1200 DEG C and pressurized to 30-50 MPa for hot-pressing sintering to obtain a target blank; and the obtained blank target is sequentially subjected to diamond grinding and water cutting to obtain the high-density nickel-magnesium oxide target material. The preparation method is simple in operation and low in cost, the prepared target material is uniform in composition, good in conductivity, free of internal defects, high in density, and meets the requirements of a sputtering target.
Owner:XIANDAO THIN FILM MATERIALS GUANGDONG CO LTD

Diamond grinding wheel sheet tooth and process method

The invention relates to a diamond grinding wheel sheet tooth and a technological method, and belongs to the field of diamond grinding wheel manufacturing. Comprising an insert, a binding agent and a plurality of water / chip grooves, the periphery of the insert is wrapped with the binding agent, and the water / chip grooves are formed in the side wall of the binding agent; the insert comprises a base body, a plurality of diamond particles and a consolidation layer, and the diamond particles are arranged on the side wall, in the rotating circumferential direction of the grinding wheel, of the base body in a single-layer mode through the consolidation layer. According to the method, enrichment and blockage of the diamond particles in the injection molding and curing molding process are avoided, so that the obstacle of applying the method for manufacturing the thermoplastic material through the injection molding and curing molding process to the manufacturing process of the diamond grinding wheel is eliminated; and the application of a thermoplastic material injection molding and curing forming process to the manufacturing of the diamond spliced grinding wheel sheet teeth is facilitated.
Owner:GUILIN GRIND-ACAD MATERIAL TECH CO LTD +1

Diamond grinding wheel convenient for guiding cooling water

The utility model discloses a diamond grinding wheel convenient to guide cooling water, which comprises a diamond grinding wheel body, a flow guide structure is arranged on the outer surface of the diamond grinding wheel body, and the flow guide structure comprises a side flow guide spiral groove, a liquid storage through hole and a U-shaped flow storage groove. An automatic water spraying auxiliary cooling backflow device used for reducing splashing of cooling water is arranged above the diamond grinding wheel body. According to the diamond grinding wheel convenient for guiding the cooling water, the flow guide structure is arranged, so that the structure is simple, the contact retention time between the cooling water and the diamond grinding wheel body can be ensured, the cooling effect on the diamond grinding wheel body is improved, and the protection on the diamond grinding wheel body is improved; the service life of the diamond grinding wheel body is prolonged.
Owner:YANTAI MASTER DIAMOND TOOLS CO LTD

A kind of electroplating device of diamond sawing wire and its electroplating process

The application relates to the technical field of electroplating devices, in particular to a diamond saw wire electroplating device and an electroplating process thereof. The diamond saw wire electroplating device comprises an electroplating tank, a guide wheel and two current conducting wheels. The guide wheel is arranged in the electroplating tank and located between the two current conducting wheels. The guide wheel and the current conducting wheels can rotate around their own axes, and the cross section of the guide wheel perpendicular to the axis direction is elliptical. The diamond saw wire electroplating device is matched by arranging the electroplating tank, the guide wheel and the two current conducting wheels. In the process of continuous movement of the metal wire, the metal wire drives the guide wheel to rotate, and the elliptical structure of the guide wheel can limit the metal wire and additionally stir the diamond grit in the electroplating solution when the guide wheel rotates, so that the diamond grit in the electroplating solution is more uniformly distributed, and the electroplating quality is improved.
Owner:YIYANG BAITONG NEW MATERIALS CO LTD