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22results about How to "Guaranteed Magnetic" patented technology
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Winding device and winding equipment
ActiveCN119652029AIncrease the magnetic field strengthGuaranteed MagneticManufacturing dynamo-electric machinesWinding machineElectric machinery
The invention relates to the technical field of iron core winding machines, and provides a winding device and winding equipment. Assembling a shaft; the die head assembly comprises a die head seat connected with the assembling shaft and a positioning seat used for abutting against the tooth part of the iron core to be wound, and the positioning seat is elastically connected to the other end, opposite to the end connected with the assembling shaft, of the die head seat and can move relative to the die head seat in the axial direction of the assembling shaft; the winding assembly comprises a winding part used for winding an enameled wire on the tooth part of the iron core to be wound; the wire assembly comprises an upper wire support lug and a lower wire support lug which are used for guiding an enameled wire to the tooth part; the push rod assembly comprises a push rod seat, an upper push rod, a lower push rod and a push rod seat power part, the upper push rod is provided with an upper wire guide inclined surface for guiding the enameled wire to move, and the lower push rod is provided with a lower wire guide inclined surface for guiding the enameled wire to move. Compared with the prior art, the iron core has higher magnetic field intensity, and the magnetism of the motor is ensured.
Owner:SHENZHEN JINMINJIANG RIVER MECHANICAL & ELECTRICAL EQUIP
Preparation method of permanent magnetic ferrite with high performance and high breakdown voltage
InactiveCN119661213AImprove breakdown voltagereduce internal currentInorganic material magnetismCeramic materials productionFerrite (magnet)Lanthanum
The invention discloses a preparation method of a high-performance high-breakdown-voltage permanent magnetic ferrite, relates to the technical field of preparation of permanent magnetic ferrites, and aims to solve the problem that the breakdown voltage performance cannot meet the requirement when a high-performance ferrite is prepared on the basis of a 9-series strontium ferrite pre-sintering material added with lanthanum and cobalt. The preparation method comprises the following steps: uniformly mixing a lanthanum-cobalt-free 5-series strontium ferrite pre-sintered material, a lanthanum-cobalt-added 9-series strontium ferrite pre-sintered material and a recycled waste material according to a ratio to serve as raw materials, adding auxiliary materials, mixing, putting into a ball milling tank, adding water, carrying out sufficient ball milling, discharging from the tank, filtering water, magnetizing, pressurizing and forming in a pressing machine, heating and sintering a formed blank, and carrying out high-temperature sintering to obtain the lanthanum-cobalt-free strontium ferrite composite material. Grinding and drying to obtain the permanent magnetic ferrite; the process is simple, the breakdown voltage of the high-performance ferrite added with lanthanum and cobalt is greatly improved, the internal current of the ferrite under high voltage is reduced, meanwhile, the magnetic performance is ensured, and the application of the ferrite under high frequency is promoted.
Owner:SINOSTEEL ANHUI TIANYUAN TECH
Cerium-containing high-coercivity rare earth permanent magnet and preparation method thereof
ActiveCN119252590AHigh content of cerium elementImprove coercive forceMagnetic materialsInductances/transformers/magnets manufactureRare-earth elementCerium
The permanent magnet comprises, by mass, REaNbFe100-a-b-c-dCocBd, RE is a combination of two or more of rare earth elements including lanthanum, cerium, praseodymium and neodymium and must contain the cerium element, the mass percentage of the cerium element is not lower than 6%, N is one or more of aluminum, copper, gallium and zirconium, the sum of the mass percentage of the elements is not lower than 6%, the sum of the mass percentage of the elements is not lower than 6%, the sum of the mass percentage of the elements is not lower than 6%, and the sum of the mass percentage of the elements is not lower than 6%. The permanent magnet is prepared from two raw materials including a main phase alloy and an auxiliary phase alloy through double-alloy formation, the main phase alloy comprises a cerium element, and the auxiliary phase alloy comprises a cobalt element; through the addition of the cobalt element, the precipitation of the CeFe2 phase can be reduced, a new main phase is formed, the main phase volume ratio of the permanent magnet is increased, the problem of magnetic performance deterioration caused by the addition of the cerium element is avoided, and the prepared cerium-containing rare earth permanent magnet has high coercive force.
Owner:BAOTOU INST MAGNETIC NEW MATERIALS CO LTD
Rope-driven intelligent mechanical arm applied to high-voltage transmission tower
PendingCN119427332Aeasy to operatereduce manufacturing costProgramme-controlled manipulatorTransmission towerFiber
The invention provides a rope-driven intelligent mechanical arm applied to a high-voltage power transmission tower. The rope-driven intelligent mechanical arm comprises a five-degree-of-freedom body structure module, a fixed bottom plate module and a tail end magnet quick-change module. The five-degree-of-freedom body structure module comprises a second rope, a carbon tube connecting disc, a large arm carbon tube, a transmission gear, a rotating disc, a rope penetrating sleeve, a wrist connecting disc, a fixing disc, a small arm carbon tube and a second joint motor. A second rope penetrates through a rope penetrating sleeve arranged on the rotating disc, an output shaft of a second joint motor is connected with a pinion, then is connected with a transmission gear and is arranged on the rotating disc, and the transmission gear is connected with a carbon tube connecting disc; the large arm carbon tube is connected with the carbon tube connecting disc through a fastening bolt, and the second rope penetrates out of the large arm carbon tube after passing through the rope penetrating sleeve to drive the small arm carbon tube to rotate. The five-degree-of-freedom series mechanical arm is adopted as an overall structure, the large working range is achieved, meanwhile, the carbon fiber tube connecting rods are adopted, the weight is light, replacement is convenient, and therefore the five-degree-of-freedom series mechanical arm has good maintainability and stability.
Owner:SHANGHAI PLATFORM FOR SMART MFG CO LTD
Rotor assembly and motor with same
PendingCN121966077AGuaranteed Magneticreduce wasteMagnetic circuit rotating partsElectric machineMagnetic leakage
The invention provides a rotor assembly and a motor with the same, the rotor assembly comprises a rotor iron core and a first permanent magnet, a first accommodating groove penetrating through the axial direction of the rotor iron core is formed in the rotor iron core, the first accommodating groove extends along the radial direction of the rotor iron core, and the first permanent magnet is inserted into the first accommodating groove. The first permanent magnet comprises a main body part and a reduction part formed on one side of the main body part, the size of the reduction part is smaller than that of the main body part, the main body part is close to the outer circle of the rotor core relative to the reduction part, and the reduction part is located at the center of the rotor core relative to the main body part. According to the invention, the main body part with a larger volume is closer to the outer circle of the rotor core, the reduced part with a smaller volume is closer to the center of the rotor core, and the area close to the center of the rotor core is the easily-magnetic-leakage part of the rotor, namely, the main body part of the first permanent magnet avoids the easily-magnetic-leakage part of the rotor, so that magnetic leakage can be reduced; the magnetic performance of the rotor is ensured.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI
Winding device for skewed slot iron core
ActiveCN119675366AIncrease the magnetic field strengthArrange neatlyManufacturing dynamo-electric machinesElectric machineryWire wrap
The invention relates to the technical field of winding equipment, and provides a winding device for a chute iron core, which comprises a main bracket, a main shaft, a die head assembly, a winding assembly and a wire assembly, and is characterized in that the main shaft is supported on the main bracket; the die head assembly comprises a die head seat and a positioning seat; the positioning seat is elastically connected to one end of the die head seat and can move relative to the die head seat; the wire assembly comprises an upper wire support lug and a lower wire support lug which are used for guiding an enameled wire to the tooth part of the iron core; the upper wire supporting lug extends in the first direction, the first direction is inclined relative to the longitudinal section, the lower wire supporting lug extends in the second direction, the second direction is inclined relative to the longitudinal section, and an upper guide groove enabling the upper wire supporting lug to move in the first direction and a lower guide groove enabling the lower wire supporting lug to move in the second direction are formed in the positioning base. Compared with the prior art, the iron core has higher magnetic field intensity, and the magnetism of the motor is ensured.
Owner:SHENZHEN JINMINJIANG RIVER MECHANICAL & ELECTRICAL EQUIP
Vacuum annealing process method for 1J22 soft magnetic material thin-wall part
PendingCN119433157Areduce distortionGuaranteed MagneticFurnace typesInductances/transformers/magnets manufactureVacuum annealingMachining
The invention relates to the field of heat treatment processing, in particular to a 1J22 soft magnetic material thin-wall part vacuum annealing process method which comprises the following steps: (1) manufacturing a 1J22 soft magnetic material sample, and cleaning a part and the sample; (2) charging the part and the sample into a furnace; (3) performing primary annealing on the part and the sample; (4) performing magnetic detection on the sample subjected to primary annealing, if a magnetic detection result meets requirements, executing the step (5), otherwise, adjusting parameters of primary annealing, and repeating the steps (1)-(3); (5) the part and the sample are subjected to finish machining; (6) carrying out secondary annealing on the part and the sample subjected to finish machining; and (7) carrying out magnetic detection on the sample subjected to secondary annealing, if a magnetic detection result meets the requirement, ending the annealing process, otherwise, adjusting parameters of secondary annealing, and repeating the step (6).
Owner:XINXIANG AVIATION IND GROUP
Strontium ferrite and preparation method thereof
InactiveCN119263806AImprove remanenceGood orientationInorganic material magnetismStrontium carbonatePhysical chemistry
The invention discloses a preparation method of strontium ferrite and the strontium ferrite and belongs to the technical field of permanent magnet materials, and the preparation method of the strontium ferrite is characterized by comprising the following preparation steps: S1, raw material preparation: mixing 80-88 parts by weight of ferric oxide, 6.5-8.5 parts by weight of strontium carbonate and 0.5-0.9 part by weight of calcium carbonate powder to obtain a mixture A; s2, performing primary wet ball milling on the mixture A to obtain mixture A slurry; s3, drying the slurry of the mixture A obtained in the step S2, pre-sintering, and crushing to obtain pre-sintered powder; s4, mixing 0.8-1.5 parts by weight of cobaltosic oxide, 3-4 parts by weight of lanthanum oxide, 0.2-0.6 part by weight of silicon dioxide and 2-6 parts by weight of a dispersing agent with the pre-sintered material powder, and performing secondary wet ball milling to obtain slurry of a mixture B; and S5, drying the slurry of the mixture B, pressing into a blank, and sintering to obtain the strontium ferrite at the sintering temperature of 1175-1205 DEG C, and keeping the temperature for 4-6 hours, thereby achieving the effect of improving the magnetic performance of the strontium ferrite.
Owner:XIANGCI MAGNETIC IND (SHENZHEN) CO LTD
SmFeN material and preparation method thereof
PendingCN119626699Aprevent oxidationimprove securityMagnetic materialsInductances/transformers/magnets manufacturePolymetaphosphatePhosphate
The invention provides a SmFeN material and a preparation method thereof, the SmFeN material comprises an inner core and a coating layer, the inner core comprises SmFeN, and the coating layer comprises polymetaphosphate. According to the SmFeN material, through coating of the coating layer, the stability of the SmFeN material is improved, the SmFeN material is not prone to oxidation, the activity and magnetism of the SmFeN material are guaranteed, and meanwhile the safety of the SmFeN material during refining, drying and the like is effectively improved.
Owner:HENGDIAN GRP DMEGC MAGNETICS CO LTD +1
A slotless ac motor structure based on a few iron cores
ActiveCN224289432Ureduce weightLightweight structure designMagnetic circuit stationary partsWindings conductor shape/form/constructionElectric machineControl theory
This utility model discloses a slotless AC motor structure based on a reduced-core design, comprising a housing, a stator module, a partial core module, and a rotor module. The housing includes a main body and a base plate. The stator module is built into the housing and includes an annular non-magnetic frame and coils. The partial core module includes several cores, which are mounted one-to-one on a core mounting bracket, with air gaps between adjacent cores. This slotless AC motor structure aims to solve problems such as significant cogging effect, excessive core weight, and inflexible magnetic circuit in traditional motor structures. The motor eliminates the traditional slotted stator structure, adopting a combination design of slotless coils and a partial magnetic core. While ensuring effective control of the magnetic flux path, it significantly reduces motor weight, manufacturing complexity, and improves dynamic response performance.
Owner:JIAXING LOUIS NAIR MOTOR CO LTD
Machining mold of bionic muscle prosthesis and machining method of product of bionic muscle prosthesis
The invention discloses a machining mold of a bionic muscle prosthesis and a machining method of a product of the machining mold. The machining mold of the bionic muscle prosthesis comprises a mold base, a mold core and a plurality of core rods. A mold cavity is formed in the mold base, the mold core is arranged in the mold cavity, the multiple core rods extend in the length direction of the mold core and are annularly arranged in the mold cavity in the circumferential direction of the mold core, and an injection opening communicated with the mold cavity is formed in the mold base and used for injecting injection molding materials into the mold cavity. Therefore, a hollow bionic muscle prosthesis body with a plurality of through holes is formed. According to the technical scheme, demagnetization of the permanent magnet caused by vulcanization temperature rise and random displacement of the permanent magnet in a mold caused by pressure when the permanent magnet and the bionic muscle prosthesis body are formed together can be avoided, and therefore the magnetic performance of the bionic muscle prosthesis is guaranteed.
Owner:DONGGUAN BOW HARD MAGNETIC TRANSMISSION TECHNOLOGY CO LTD
Arc-shaped magnetic shoe forming die
ActiveCN119296938AEven by forceImprove uniformityInductances/transformers/magnets manufactureElectric machineTop cap
Owner:ANHUI YUANXIN PRECISION MASCH TECH CO LTD
Preparation method of high-performance diffusion Sm-Co composite permanent magnet
ActiveCN114864266BGuaranteed MagneticThe experimental method is simpleMagnetic materialsInductances/transformers/magnets manufactureMagnetic phaseOrganic solvent
The application discloses a preparation method of a high-performance diffusion Sm-Co composite permanent magnet, and comprises the following steps: mixing alloy components according to (Sm, Re)2(Co, A) 17 After the alloy components are mixed, a proper amount of BiI3 is added, magnetic field orientation forming is carried out, and a Sm-Co magnet green body is obtained; the Sm-Co magnet green body is vacuum pre-fired under certain temperature conditions, and a magnet with a network channel structure in the interior is formed; a soft magnetic phase nano-level Fe or Co powder is mixed with an organic solvent to form a diffusion source mixed solution, the pre-fired Sm-Co magnet is immersed into the mixed solution, and after being taken out, the Sm-Co magnet is placed into a vacuum oven and dried. The BiI3 sublimation technology is used to make the soft magnetic phase and the doped elements effectively enter the grain boundary of the Sm-Co magnet, improve the coupling effect and pinning effect of the soft and hard magnetic phases, and improve the coercive force and maximum magnetic energy product. The preparation method is simple in process, low in cost, less in introduced impurities, and capable of maintaining the magnetic performance of the hard magnetic phase to the maximum extent.
Owner:DONGYANG FIRST MAGNETICS CO LTD
A method for improving texture orientation and workability of fe-6.5%si steel
This invention relates to a method for improving the texture orientation and processing properties of Fe-6.5%Si steel, belonging to the field of material modification technology. It includes composition adjustment, determining the normalization temperature range and cooling medium, cold rolling and annealing treatments, calculating the lattice slip energy of the cold-rolled non-oriented steel sheet, electrical pulse modification, and temperature control. This invention alters the magnetic and deformation properties of Fe-6.5%Si alloys through the addition of alloying elements and pulsed current treatment, resulting in low-iron-loss, low-noise, high-silicon electrical steel for power transformers that can be produced using rolling processes. The silicon steel sheets prepared using this invention have been validated in engineering applications. Third-party testing has shown that their performance indicators meet the requirements for silicon steel sheets used in transformers, demonstrating strong engineering practicality and enabling actual industrial production.
Owner:JILIN ELECTRIC POWER RES INST LTD
Preparation method of NdFeB magnet
ActiveCN118380256Bimprove matchhigh curie temperatureMagnetic materialsPermanent magnet manufacturePolyurethane elastomerMetallurgy
The invention relates to the technical field of NdFeB magnets, and discloses a preparation method of the NdFeB magnet. By introducing elements such as Y and Ni, the collocation of magnet elements is optimized, the Curie temperature and coercive force of the NdFeB magnet are significantly improved, the temperature coefficient is reduced, and the disadvantage of poor heat resistance of the NdFeB magnet is improved; a rapid quenching thin strip, hydrogen explosion powder making and calendering forming process are adopted to refine the main phase grains, realize mechanical orientation, and enable the magnet to have higher magnetic properties; the surface of the NdFeB magnetic powder is modified by KH550, and chemical adsorption with the magnetic powder in the form of Si-O-covalent bonds is formed after dehydration and condensation, which is beneficial to improving the adhesion between the magnetic powder and the resin; a polyurethane elastomer binder containing a naphthyl group and a triazine group of a heat-resistant group can form a very stable system with the modified NdFeB magnet, so that the magnet has excellent dimensional stability under a high temperature environment.
Owner:JIANGSU PULONG MAGNETIC ELECTRICITY CO LTD
Magnetizing screwdriver for automatic assembly of deep-cavity screws
The utility model discloses a magnetizing screwdriver for automatic assembly of a deep-cavity screw, which is characterized in that the output end of an electric screwdriver rod is detachably provided with a screwdriver head, the rod body of the electric screwdriver rod is provided with a positive and negative rotation switch for controlling the screwdriver head to rotate, and the output end of the electric screwdriver rod is detachably provided with a coil framework sleeved outside the rod body of the screwdriver head; a coil which is used for magnetizing the screwdriver head and is in circuit connection with a power source in the electric screwdriver rod is arranged in the coil framework, a magnetizing switch used for conducting power-on control on the coil is further arranged on the electric screwdriver rod, and a limiting plate with the cross section of a semi-annular structure is arranged on a rod body of the screwdriver head. The limiting plate and the bit are coaxially arranged, and the limiting plate can axially slide to the front end of the bit along a rod body of the bit; according to the screwdriver bit, the screwdriver bit can efficiently and stably adsorb a screw in a power-on magnetizing mode, the screw can be vertically limited through the limiting plate in the adsorption process, and great convenience is provided for follow-up automatic, rapid and accurate installation of the screw.
Owner:CHINA AIR TO AIR MISSILE INST
Film-coated amorphous strip, amorphous alloy profile, alloy product structure and processing system
ActiveCN222647878UImprove physical propertiesGuaranteed MagneticFilm/foil adhesivesThin membraneAlloy
The utility model provides a film-coated amorphous strip, amorphous alloy profile, alloy product structure and processing system, wherein the whole film-coated amorphous strip is in the shape of a long strip, the film-coated amorphous strip comprises an amorphous alloy layer subjected to heat treatment application, at least one side of the amorphous alloy layer is provided with a bonding film, and the bonding film is provided with a bonding layer. The bonding film forms film stress on the surface of the amorphous alloy material in the amorphous alloy layer; the film-coated amorphous strip has excellent physical characteristics and can be effectively cut at will without being damaged, and the magnetic performance effect of the amorphous alloy profile obtained through machining is guaranteed to the maximum extent; on the basis of the application of the film-coated amorphous strip, an amorphous alloy profile can be obtained through cutting, then a corresponding amorphous alloy product can be obtained through processing, and the amorphous alloy product has the characteristic of excellent magnetic performance.
Owner:SHENZHEN DING TAI MAGNETIC MATERIAL CO LTD
Bag making machine with adsorption device
ActiveCN224116867UGuaranteed MagneticAvoid the problem of greatly reduced production qualityBag making operationsPaper-makingElectric machineryIndustrial engineering
The utility model discloses a bag making machine with an adsorption device, and belongs to the technical field of packaging film processing equipment.The bag making machine comprises a base, and one side of the top of the base is fixedly connected with a tensioning box; the device is novel in design and ingenious, scrap iron on the surfaces of the ton bags can be adsorbed by arranging the scraping mechanism, the ton bags penetrate from the bottom of the right magnet wheel to the top of the left magnet wheel when being conveyed to the magnet wheels, it is guaranteed that the scrap iron on the two faces of each ton bag can be adsorbed, and after work is completed, the surfaces of the magnet wheels carry a large amount of scrap iron; at the moment, a second motor drives a second lead screw to rotate, then the second lead screw drives a Y-shaped rod and a scraping ring to horizontally move left and right, the scraping ring scrapes scrap iron attached to the surface of a magnet wheel, the magnetism of the surface of the magnet wheel is ensured, the scraping ring is moved to one side after scraping is completed, and interference to ton bag conveying is avoided. The production quality is greatly reduced, and the practicability of the device is greatly improved.
Owner:SHANGHAI TANGKE NEW PACKAGING CO LTD
A method for preparing an iron-doped ZrO2-coated magnetic lithium-ion sieve
ActiveCN117486261BDoes not affect magnetismFacilitates ion exchange reactionsManganese compoundsZirconium oxidesPhysical chemistryManganese
The application relates to a preparation method of a magnetic lithium ion sieve coated with Fe-doped ZrO2, and relates to a preparation method of a lithium ion sieve. 3+ The application creatively adopts Fe-doping and ZrO2 coating to prepare the magnetic lithium ion sieve, simultaneously reduces the dissolution loss of manganese and iron by means of metal cation ion doping and coating, realizes efficient solid-liquid separation, greatly increases the service life of the lithium ion sieve, and is applicable to lithium extraction from various lithium-containing solutions due to the acid and alkali resistance of ZrO2. The method comprises the following steps: 1, preparing FO; 2, preparing LMFO; 3, preparing ZrO2@LMFO; and 4, preparing ZrO2@HMFO. The process is simple in preparation, the dissolution loss of manganese and iron tends to be stable in multiple cycles, the magnetic separation performance is good, the process is applicable to mass production, and is helpful to the industrialization progress of lithium extraction from salt lake brine.
Owner:NORTHEAST DIANLI UNIVERSITY
Welding robot
ActiveCN222492744UGuaranteed MagneticDemagnetizationGripping headsWelding/cutting auxillary devicesRobotyWelding
The utility model discloses a welding robot, relates to part handling technical field, the welding robot includes base frame, welding mechanism, handling mechanism, wherein the welding mechanism is installed on base frame, handling mechanism includes connecting support and handling device, connecting support is installed on welding mechanism or base frame, handling device includes magnetic attraction piece, magnetic attraction piece is installed on the magnetic attraction piece. The magnetic attraction part has the characteristics of keeping magnetism during power failure and eliminating magnetism during power on, in the process that the welding robot carries the parts, only the magnetic attraction part needs to be in the power-off state, at the moment, the magnetic attraction part keeps magnetism continuously, it can be guaranteed that the parts are continuously attracted to the magnetic attraction part, and even if the welding robot is powered off abnormally, the parts can be continuously attracted to the magnetic attraction part. And the situation that the parts fall off, and then the parts are damaged is avoided.
Owner:GAC TOYOTA MOTOR
A high-magnetic-induction oriented silicon steel plate strip shot blasting descaling unit based on supervised learning
The utility model discloses a sense orientation silicon steel plate strip shot blasting descaling unit, and the unit is composed of centrifugal shot blasting unit, shot blasting control box, intelligent control system and sensor device. The centrifugal shot blasting unit is connected with the intelligent control system through the shot blasting control box, and the sensor device can collect shot blasting parameters in real time and transmit to the intelligent control system. The system contains the supervision learning algorithm module, finite element simulation module, fault diagnosis module and automatic adjusting module. The supervision learning algorithm module and finite element simulation module interact data, and establish the mapping model of pellet parameters and descaling effect. The finite element simulation module simulates the iron oxide skin rupture mechanism and provides theoretical support. The fault diagnosis monitoring module equipment state, and the alarm when abnormal. The automatic adjusting module outputs dynamic parameter adjustment according to the model. The utility model realizes the accurate control of shot blasting parameters, improves the descaling efficiency and precision, and guarantees the surface quality of the orientation silicon steel plate strip.
Owner:XIN WAN XIN FU JIAN JING MI BAO BAN YOU XIAN GONG SI
Ball mill capable of efficiently discharging and cleaning
The utility model discloses a ball mill capable of efficiently discharging and cleaning, and belongs to the technical field of wet grinding equipment. Comprising a cylindrical grid body and a mounting plate arranged at the bottom end of the grid body, grids are uniformly distributed on the grid body, and the outer diameter of the grid body is smaller than the inner diameter of the discharging opening; at least two spacer blocks are arranged between the mounting plate and the outer wall of the cylinder body, the spacer blocks are uniformly distributed, and a gap is formed between the inner wall of the mounting plate and the outer wall of the cylinder body; a discharge hole communicated with the interior of the grating body is formed in the mounting plate; a continuous passage for discharging the slurry is formed among the inner cavity of the barrel, the grid and the discharge hole; and a continuous passage for discharging the slurry is formed among the inner cavity of the barrel, the outer wall of the grid and the inner wall of the discharge hole. The problems that an existing ball mill is low in discharging speed, incapable of effectively discharging, poor in cleaning quality and the like are solved.
Owner:ZIGONG JIANGYANG MAGNETIC MATERIALS CO LTD