35results about How to "Guaranteed thickness" patented technology

This invention provides a fixture for controlling the adhesive thickness of Heilbeck magnetic components. The mounting base includes a station, a push rod moving mechanism, and a pressure rod moving mechanism. The station is used to place a fixture plate with a placement slot for holding the magnetic components. The magnetic components include a fixed magnet and a movable magnet, with adhesive dots positioned between them. The push rod moving mechanism includes a first drive unit and a push rod. The first drive unit drives the push rod to move the movable magnet along the placement slot, closer to the fixed magnet, and controls the adhesive dot spacing between the movable and fixed magnets. The pressure rod moving mechanism includes a second drive unit, an elastic element, a primary pressure rod, and a secondary pressure rod. The length of the primary pressure rod is greater than the length of the secondary pressure rod. The second drive unit drives the primary pressure rod to pre-press and fix the fixed magnet, preventing it from being sucked away. The second drive unit also drives the primary and secondary pressure rods to apply pressure to the fixed magnet and the movable magnet, respectively. This fixture is used to control the adhesive thickness and improve the quality of the magnetic components.

This utility model discloses a laser cutting and engraving stage, belonging to the field of laser cutting technology. The laser cutting and engraving stage includes a frame and multiple sets of elongated support plates. Each support plate has a first working surface and a second working surface. The frame has a working area, and multiple equidistant limiting grooves are formed on the inner walls of both sides of the working area. The two ends of the support plates extend into the limiting grooves. When the first working surface is horizontal, the support plate is in a first working state; when the second working surface is horizontal, the support plate is in a second working state. This utility model, by creating limiting grooves within the frame and extending the two ends of the support plates into these grooves, and by having both a first and a second working surface, allows for switching between honeycomb and blade-type stages through the switching between the first and second working surfaces. This eliminates the need for additional stage types, reduces operating costs, minimizes space occupation, and improves performance.

The utility model relates to the technical field of graphitization furnaces, and aims to solve the problems that the existing graphitization furnace is non-uniform in resistance material filling, non-uniform in temperature rise in a furnace body, limited in cathode material filling amount in a crucible and low in effective utilization rate of a space in the furnace. The utility model provides a graphitization furnace for an artificial graphite cathode material. The graphitization furnace comprises a furnace body and a plurality of square crucibles, the plurality of square crucibles are distributed in the furnace body in a matrix manner; a plurality of square crucibles in the same row are connected in series through a first connecting assembly; the plurality of square crucibles in the same column are connected through a second connecting assembly; the first connecting assembly is clamped with the second connecting assembly; a resistor filling layer is arranged between every two adjacent rows of square crucibles; a thermal insulation layer surrounding the plurality of square crucibles is arranged in the furnace body; according to the graphitization furnace for the artificial graphite cathode material, the square crucible with the filling amount higher than that of a traditional round crucible is adopted, the effective space in the furnace is fully utilized, the graphitization furnace is more durable, and the use frequency of the graphitization furnace is higher than that of the traditional round crucible.

The invention discloses a reinforcing steel bar connecting sleeve, a connecting structure and a construction method, and relates to the technical field of building reinforcing steel bar connection.The reinforcing steel bar connecting sleeve comprises a sleeve body and reinforcing steel bars to be connected, and the sleeve body comprises a sleeve body and a sealing gasket located at the end opening of the sleeve body; a closed cavity is formed in the barrel through the sealing gasket, and a cementing material is arranged in the closed cavity of the barrel; the connecting reinforcing steel bars penetrate through the sealing gasket and penetrate into the cylinder body, the connecting reinforcing steel bars are wrapped by the cementing material, and the cylinder body is connected with the reinforcing steel bars. The invention has the advantages that the cementing material is injected into the sleeve in advance, only the reinforcing steel bar is inserted during installation, the installation is convenient, and the connection is reliable; due to the structure of the sealing gasket, little cementing material leaks out, the connection of the sleeve is visually checked due to the arrangement of the material bolt hole, and compared with an existing grouting sleeve, the connection quality is better guaranteed; the sleeve can be applied to a cast-in-place environment and a prefabrication environment, and the other end of the sleeve is provided with ports in different forms, so that the sleeve can be suitable for various occasions and is convenient to install and efficient in connection.

The application discloses a kind of production and cultivation methods of crisp chicken, comprising the following steps: S1, cultivate crisp chicken species: with E'mei black chicken as basic population, hybridization breeding is obtained with sasso chicken, and hybridization is obtained with Rongde small black chicken, and the crisp chicken species with chicken skin thickness not less than 2.3mm is selected and bred;S2, nutrition regulation feeding is carried out: the nutrition regulation feeding of at least 50 days is carried out to the crisp chicken species in fattening period, and the feed with the crude protein content of 18%-22% is provided, and the feed includes soybean meal, vitamin C, fat, fat metabolism aid, fermented soybean meal and trace nutrients;S3, breeding environment management is carried out: in fattening period, control chicken house environment temperature is 18-25 DEG C, relative humidity is 50%-60%, and breeding density is controlled.The application is cultivated by three system matching breeding, accurate nutrition regulation and fine breeding management multi-link cooperation, and the chicken species that fits crisp core characteristic is cultivated.

The present application relates to the technical field of submerged arc welding, in particular to a wind power tower cylinder girth weld walking type welding equipment and method thereof, the equipment comprises a submerged arc welding machine main body, a double-tube gun head is arranged on the submerged arc welding machine main body, a welding wire is arranged in the vertical pipe of the double-tube gun head and is conveyed downward, and the inclined pipe communicated with the vertical pipe conveys flux to the vertical pipe, a gravity frame is arranged at the bottom end of the double-tube gun head, and a material pusher is arranged at both ends of the gravity frame, the traditional wind power tower cylinder submerged arc welding technology has the problem of flux loss in the advancing direction of the welding gun head, and then the sealing coverage of the flux to the welding wire is insufficient, the welding wire is exposed to the air, sparks are generated, the two sides of the cone-shaped flux accumulated by the material pusher on both sides of the girth gap are supplemented into the welding wire advancing area, the thickness of the advancing area flux is ensured, and the welding wire is prevented from being exposed to the air or the problem of air invasion and oxidation caused by the thinning of the flux layer.

Embodiments of the present application disclose a secondary battery and a battery pack, wherein the secondary battery comprises: a shell comprising: a side wall, a bottom wall and a first connecting portion, the side wall extends along a first direction, the bottom wall is arranged on one side of the side wall in the first direction, and the side wall and the bottom wall cooperate to enclose a containing cavity; two ends of the first connecting portion are connected with the side wall and the bottom wall respectively; an electrode assembly arranged in the containing cavity; and a first insulating coating arranged on an outer wall surface of the first connecting portion; wherein the thickness of the first insulating coating is H1 mm, and the following formula is satisfied: H1 = 0.09175 + 0.00294X + 0.06165X 2 - 0.03236X 3 , X = R x sin(alpha / 2) x sin(180°-beta). According to the present application, the risk of insulation breakdown of the shell is reduced, the safety performance of the shell is improved, and the safety performance of the secondary battery is improved.

The utility model discloses a framework structure and motor, include: the lead wire side framework and the opposite lead wire side framework of configuration at the both ends of stator core, the lead wire side framework includes: first component, along the axial direction and axial extension, a plurality of second components, and the second component is spaced apart each other and is arranged in the radial inboard of first component and along the circumference direction of first component extension, through the mode of thinning the tooth wall thickness of second component, forms the winding area between first component and second component, and the first reinforcing part is arranged at the connecting place of winding area and second component. Through above -mentioned mode, the utility model can realize to winding slot full rate, and the strength of framework tooth wall is compensated to reinforcing part, guarantees the strength and stability of framework overall structure.

The application provides a spraying device for building decoration, comprising a spray gun, the spray gun forms a liquid inlet end and a liquid outlet end respectively, the liquid inlet end and the liquid outlet end are respectively provided with a liquid conveying pipe and a spray head, the spraying device for building decoration further comprises: two mirror image arranged limiting blocks, the spray head is concave downward along the spray hole axis direction to form a mounting groove, the two limiting blocks are rotatably arranged in the mounting groove through a pin shaft; an adjusting unit, comprising a driving part sleeved on the spray head and an adjusting part connected between the two limiting blocks, the driving part and the adjusting part are connected. By sliding the driving part along the axis direction of the spray head, the driving part drives the adjusting part connected thereto to move between the two limiting blocks, so that the two limiting blocks rotate synchronously to change the included angle between the two limiting blocks, thereby adjusting the initial spraying angle of the mist-shaped spraying liquid, and the normal spraying work surface can be ensured at a proper spraying distance, the coating thickness is ensured, and spraying liquid waste is avoided.

The invention discloses an aerogel modified inorganic zinc-rich coating as well as a preparation method and application thereof, the aerogel modified inorganic zinc-rich coating comprises a component A and a component B, and the mass ratio of the component A to the component B is 1: (1-4); wherein the component A is an aerogel modified liquid silicate solution and consists of the following components in parts by mass: 20-40 parts of a silicate solution, 1-5 parts of aerogel and 1-10 parts of water; and the component B is a powder material and comprises the following components in parts by mass: 5-10 parts of body filler, 40-60 parts of zinc powder and 3-8 parts of antirust filler. The aerogel modified inorganic zinc-rich coating is obtained after the aerogel modified inorganic zinc-rich coating is coated on the surface of a treated steel part, dried and cured for 24 hours at normal temperature. The aerogel modified inorganic zinc-rich coating solves the problems that a traditional zinc-rich coating is high in zinc content, prone to precipitation, short in pot life, capable of discharging VOCs and the like, and the prepared aerogel modified inorganic zinc-rich coating is safe, free of pollution and long-acting in corrosion resistance and has high application prospects and market value.

This disclosure provides a cooling device for a battery assembly, the cooling device comprising: a cooling plate extending longitudinally along a first direction, the cooling plate including a cooling outer tube for conducting coolant; wherein the cooling outer tube is formed by bending and closing a single sheet material. Furthermore, this disclosure also provides a battery assembly and a vehicle.

The application provides an etching method for improving contact hole metal residue, and provides a substrate, an interlayer dielectric layer is formed on the substrate, a first metal layer is formed on the interlayer dielectric layer, a contact hole is formed on the metal layer and the interlayer dielectric layer below the metal layer, and a second metal layer covering the first metal layer is formed on the contact hole; the second metal layer is etched by using a first bias power and a first etching gas; the second metal layer remaining on the first metal layer is removed by using a second bias power and a second etching gas, the second bias power is lower than the first bias power; and part of the second metal layer in the contact hole is etched by using a third bias power and a third etching gas. The application etches the tungsten layer by using a progressive three-step method, the first etching ensures that a large amount of tungsten on the TIN surface is completely etched; the second etching stops on the TIN surface, and a high W / TIN selection ratio is ensured; and the third etching ensures that the residual tungsten is completely etched, and a higher W / TIN selection ratio can ensure a certain TiN thickness.

The application discloses a steel bridge deck pavement structure and a construction method thereof. The method comprises the following steps: S1, preparing at least two steel bridge deck plates; S2, sequentially performing the following construction procedures on each steel bridge deck plate: (1) performing sand blasting rust removal treatment on the surface of the steel bridge deck plate and welding shear pins; (2) laying transverse steel bars and longitudinal steel bars to form a grid structure layer which is interlaced with each other; S3, arranging reinforcing steel bars and a toothed end mold at the joint of the at least two steel bridge deck plates; S4, respectively pouring the at least two steel bridge deck plates to form an ultra-high performance concrete pavement layer; and S5, laying an abrasion layer on the ultra-high performance concrete pavement layer. The application can improve the compressive strength, shearing strength and fatigue resistance of the ultra-high performance concrete pavement layer and ensure that the ultra-high performance concrete pavement layer does not flow and is not distributed in the pouring process, so that the thickness of the ultra-high performance concrete pavement layer is ensured.

This utility model provides a casting strip head with a distribution plate, which is low in cost. It includes a distribution cavity, the bottom outlet of which is bolted to a casting strip plate. The casting strip plate has a groove, and the bottom of the groove has a mold hole. The key feature is that: the distribution plate is placed at the bottom of the groove; the shape of the distribution plate matches the inner wall shape of the groove; the top surface of the distribution plate is flush with or lower than the top surface of the casting strip plate; the entire distribution plate is uniformly provided with sieve holes; and the bottom surface of the distribution cavity and the top surface of the casting strip plate are planarly sealed.

The application discloses a connector and an electronic device, the connector is used for being mounted on a shell of the electronic device, the connector comprises a socket tongue and a socket base, the socket tongue is connected with the socket base, the connector comprises an electric connection terminal, one end of the electric connection terminal is exposed on the socket tongue, the other end of the electric connection terminal is arranged in the socket base, the socket base comprises a base body and a reinforcing assembly, the reinforcing assembly is arranged in the base body, the reinforcing assembly comprises a connecting part, the connecting part extends out of the base body and is used for being connected with the shell.

The application provides a fixing device for brake disc machining and a machining method of a brake disc, wherein the brake disc comprises a first brake pad and a second brake pad arranged oppositely and a plurality of connecting columns connecting the first brake pad and the second brake pad, a first clamping groove and a second clamping groove are arranged between the first brake pad and the second brake pad, and the fixing device comprises a base plate, a first clamping part and a second clamping part, the first clamping part and the second clamping part are symmetrically arranged at two ends of the base plate, the brake disc is vertically installed on the base plate through cooperation of the first clamping part and the first clamping groove and cooperation of the second clamping part and the second clamping groove, and an axis of symmetry between the first brake pad and the second brake pad coincides with a center line between the first clamping part and the second clamping part. The first brake pad and the second brake pad are symmetrically installed on the base plate, so that the thickness difference of the first brake pad and the second brake pad can be ensured to be within a preset range.

The utility model relates to the field of wiring harness processing especially, relate to a tin soldering equipment convenient to use, including bottom plate and fixedly set up the support on bottom plate, still include mounting bracket, soldering iron and positioning tooling, the mounting bracket can be relative the support up and down movement, the soldering iron with mounting bracket detachable fixed connection, positioning tooling fixedly set up on bottom plate, and positioning tooling below the soldering iron, the upper surface of positioning tooling is provided with the soldering tin placement groove and raw material placement groove that cross each other perpendicularly, and the intersection position of soldering tin placement groove with the principle placement groove still is provided with the solder forming groove.

The utility model belongs to the technical field of optical communication element manufacturing, and particularly relates to a sealant sealing structure of an optical device BOX tube shell, which is characterized by comprising a shell seat, a cover plate, a flexible circuit board and an optical fiber, the shell seat and the cover plate are both injection molding parts or aluminum parts with U-shaped cross sections, the shell seat is overturned by 90 degrees and buckled with the cover plate to form the BOX tube shell, and the flexible circuit board is arranged on the flexible circuit board. A circuit board connecting area is arranged on the protruding edge at one end of the shell seat, and an optical fiber connecting area is arranged on the protruding edge at the other end of the shell seat; the bottom of the shell base sinks in the middle, a plane boss used for installing components is arranged in the sinking area, and a glue containing groove is formed in the periphery of the plane boss. Cover plate sliding grooves perpendicular to the sinking area are formed in the protruding edges at the two ends of the shell base respectively, positioning protruding edges are arranged at the positions, corresponding to the cover plate sliding grooves, of the cover plate, and when the positioning protruding edges of the cover plate are buckled with the cover plate sliding grooves, the two protruding edges of the cover plate sink into the glue containing groove. The beneficial effects of the utility model are that internal components are prevented from being touched by mistake due to position deviation when the cover plate is placed, and glue is prevented from overflowing into the housing.

The invention provides a preparation method of curved-surface electrochromic glass. The preparation method comprises the following steps: depositing an electrochromic functional layer on a glass substrate, depositing a buffer layer on at least one side of the electrochromic functional layer to obtain coated glass, and carrying out cold roll forming on the coated glass to obtain the curved-surface electrochromic glass. The preparation method disclosed by the invention adopts a process of first coating and then cold roll forming, so that the thickness and performance uniformity of the functional layer during coating can be guaranteed, the problems of large thickness deviation during coating of the curved glass and difficulty in adaptation of curvature, size and equipment are solved, the performance stability of the device is guaranteed, secondary processing such as cutting and punching is easy to realize, and the production cost is reduced. And the flexibility of product design can be improved.

The invention belongs to the field of aluminum alloy processing, and particularly relates to a thin-wall deep-cavity multi-rib aluminum alloy host shell production process which comprises the following steps: homogenizing a cast aluminum bar, and cutting the homogenized cast aluminum bar into a blank; symmetrically-distributed axial grooves are machined in the periphery of the blank, and sawtooth-shaped sharp edges are formed; the finished blank is subjected to cold and hot pretreatment of first heating, liquid nitrogen edge cold treatment and reheating; feeding the pretreated blank into a special forging and pressing die for forging and pressing; and finally, a finished product is obtained through quenching, aging, finish machining and anodic oxidation. According to the method, the blank is subjected to surface finishing and special cold and hot pretreatment before forging, so that the problems that the thin-wall deep-cavity multi-rib structure is uneven in side wall thickness and poor in perpendicularity during forging are effectively solved, the quality of an anodic oxide film in a corner angle area is remarkably improved, a film layer is prevented from losing efficacy in advance, and the service life of the film layer is prolonged. And meanwhile, unique mould pressing precipitation lines are formed on the surface of the product and can be used as anti-counterfeiting marks.

A display device and a display panel are disclosed. The display device may include: a substrate defining a plurality of sub-pixels; a thin-film transistor disposed on the substrate; a planarization layer disposed on the thin-film transistor; an organic light-emitting diode disposed on the planarization layer corresponding to each of the plurality of sub-pixels; an encapsulation layer disposed on the organic light-emitting diode; a touch sensor layer; a touch protection layer disposed on the touch sensor layer; a black matrix disposed on the touch protection layer between adjacent sub-pixels; and a plurality of color filters disposed on the touch protection layer corresponding to each of the plurality of sub-pixels.

The utility model relates to the technical field of household appliances, in particular to a grinding device capable of reliably adjusting a grinding gap, which comprises an adjusting mechanism for driving a movable grinding head to move relative to a static grinding cylinder so as to adjust the grinding gap between the static grinding cylinder and the movable grinding head, and an adjusting rod for locking and unlocking relative to the adjusting mechanism, when the adjusting rod is locked relative to the adjusting mechanism, the adjusting mechanism can be pushed to move, and when the adjusting rod is unlocked relative to the adjusting mechanism, the adjusting mechanism is not pushed to move. On the basis, the grinding device can realize the adjustability and solidification of the initial grinding gap, and effectively solves the problems that the initial grinding gap between the dynamic grinding and the static grinding in the prior art is complicated to adjust and is based on manufacturing tolerance, the adjustment cannot be reliable, the adjustment can only be performed before leaving a factory, but the adjustment cannot be performed quickly and simply after leaving the factory; and the adjustment is more convenient.

The utility model discloses a pavement paving module and a modular pavement using the same. The pavement paving module comprises a square block body, an assembling groove is formed in the middle of one side wall of the square block body; assembling blocks are fixed at four corners of the side wall, opposite to the circumferential direction of the assembling groove, of the square block body; a plurality of threaded holes are formed in the groove bottom wall, opposite to the assembling groove, of the square block body; anchoring holes are formed in the middles of the multiple assembly blocks. Pavement construction is conducted through mutual meshing of the square blocks arranged on the upper layer and the lower layer, an assembly type construction mode is adopted, environmental pollution and construction waste are avoided, the construction efficiency is improved, the construction period is shortened, and the maintenance cost of the pavement can be reduced through a module splicing mode.

The utility model belongs to the technical field of building foundation structures, and particularly relates to a laminated steel mesh strip-shaped foundation structure suitable for an assembly type rural house strip-shaped foundation. Comprising a necessary bearing platform, a foundation wall, embedded ribs and optional foundation beams. The bearing platform is composed of a first steel wire net frame and in-cavity concrete. The first steel wire net frame comprises a steel wire net, inserting wires, an edge sealing net film and reinforcing ribs. The foundation wall is composed of a second steel wire net frame, a heat preservation plate and in-cavity concrete. The second steel wire net frame comprises a main reinforcement net, a disassembly-free net film, a second inserting wire and a positioning clamping piece. The embedded ribs are longitudinally arranged in the foundation wall, and the upper ends of the embedded ribs are exposed. The problems that an existing foundation is tedious in construction, long in period, high in thermal bridge effect and poor in structural integrity are solved, formwork-free rapid construction is achieved through the prefabricated steel wire net frame, the thermal bridge effect is reduced through the heat preservation plates, the structural strength and durability are improved through cooperation of multiple components, the foundation beams can be selectively arranged according to the foundation conditions, and the construction efficiency is improved. And the method has remarkable practicability and economical efficiency.

The invention relates to the field of elevators, in particular to a novel elevator side-opening landing door upper sill device. A novel elevator side-opening landing door upper sill device comprises a door head bottom plate assembly, a guide rail, a driven hanging plate assembly, a driving hanging plate assembly, a door lock assembly, an auxiliary contact assembly, a linkage steel wire rope assembly, an emergency unlocking assembly, a heavy hammer assembly, a heavy hammer rope wheel assembly and a steel wire rope fixing support. The top plate is horizontally arranged at the top end of the back plate, the guide rails are fixed to the two ends of the door head bottom plate assembly through bolts, the auxiliary contact assemblies are fixed to a top plate of the door head bottom plate assembly through bolts and nuts, the emergency unlocking assembly is fixed to a corresponding hole of the door head bottom plate assembly, and roller assemblies on the driven hanging plate assembly slide into inner side grooves of the guide rails. The door lock hanging plate has the beneficial effects that the driving hanging plate assembly and the driven hanging plate assembly are consistent in component, are universal and are also suitable for various different door lock assemblies.

This invention provides a seat back that adequately ensures the thickness of the headrest cushion to enhance protection for the head or neck of the occupant. The seat back of this invention includes: a seat back frame (10) serving as the skeleton of the seat back; a headrest (30) supporting the head of the occupant; and a headrest post (40) attached to the upper part of the seat back frame and supporting the headrest, wherein the headrest post has: a fixing portion (41) fixed to the upper front surface of the seat back frame; and a first curved portion (42) extending rearward from the fixing portion.

The application provides a Yunnan red soil-based composite porous ceramsite and a preparation method and application thereof, and the preparation method of the Yunnan red soil-based composite porous ceramsite comprises the following steps: mixing Yunnan red soil particles, sepiolite powder and biomass powder to obtain a mixture; granulating the obtained mixture into balls after stirring the mixture uniformly with water to obtain green balls; and drying and calcining the obtained green balls at high temperature to obtain the composite porous ceramsite. The Yunnan red soil, sepiolite and biomass are mixed and granulated, and then calcined into the ceramsite, the ceramsite has the advantages of a large specific surface area, a high porosity, good adhesion of microorganisms on the surface and a high bacterial abundance, and can achieve a good denitrification effect; and the high-calcium minerals contained in the ceramsite are beneficial to combination with phosphorus to generate precipitates with a smaller solubility product, and the ceramsite also has a good phosphorus removal effect; therefore, when the composite porous ceramsite is used for sewage treatment, not only is the treatment effect good and the purification efficiency high, but also the wastewater can be discharged up to the standard, and the composite porous ceramsite has high practicability.

The utility model provides an assembly type counterfort retaining wall which comprises a bottom plate, a plurality of rows of cavity panel modules are arranged on the bottom plate side by side, a counterfort module is arranged at the splicing position of every two rows of cavity panel modules, and each row of cavity panel module comprises a plurality of wall panels spliced in the height direction. Each set of buttress module comprises a buttress base and a plurality of buttress rib plates, and the construction efficiency can be remarkably improved through the modular splicing type design; penetrating reinforcing steel bars used for penetrating the cavity panel modules and the buttress modules are embedded in the bottom plate, a reinforcing steel bar cage is embedded in the position, between every two adjacent sets of cavity panel modules, of the bottom plate, and the cavity panel modules, the buttress modules and the bottom plate form a firm and stable connecting system through the arrangement of the penetrating reinforcing steel bars and the reinforcing steel bar cages. The cooperative bearing capacity of the wall body and the foundation plate is enhanced; each wall panel is provided with a cavity capable of being filled with gravel materials, and on the premise that the thickness and the bearing capacity of the retaining wall are guaranteed, the use amount of concrete and other pouring materials is greatly reduced.

The utility model discloses a rare earth waste extraction and impurity removal device, the utility model relates to rare earth waste processing technical field. This rare earth waste extraction and impurity removal device includes spacing frame, and its characterized in that: the lower portion of spacing frame is provided with the impurity removal mechanism: support frame is set up in the inboard of spacing frame for supporting conveying assembly and sorting assembly, conveying assembly is set up in the inboard of support frame for conveying rare earth waste, sorting assembly is sorted to the component in the rare earth waste that can be affected by magnetism through the magnetic force size that the plurality of electromagnet generates gradually decreases from front to back in proper order, and the number of the number of electromagnet is consistent with the number of receiving hopper, can receive the material that falls after magnetism weakens, and the impurity after sorting is conveyed through the individual conveying belt that is erected below receiving hopper, or the container is placed below receiving hopper to collect the impurity, so that subsequent processing is convenient, so as to reach the effect that the sorting according to the strength of the magnetism influence.

The application provides a single-phase capacitor-operated asynchronous motor, which comprises a stator core, a rotor core and a rotor end ring, the stator core is located at the outer periphery of the rotor core, the rotor end ring is arranged at the axial end of the rotor core, the axial height of the stator core is L1, the axial height of the rotor core is L2, the axial height of the rotor end ring is H, L2>L1 is met, and C1*L2+K1*|L1-L2|≤H≤C2*L2+K2*|L1-L2| is met, wherein 0.4≤C1≤0.6, 0.5≤C2≤0.7, 0.8≤K1≤1.0 and 0.7≤K2≤1.1. According to the application, the magnetic leakage can be reduced, the starting torque can be improved, and the motor efficiency can be improved; the problems of the single-phase capacitor-operated asynchronous motor in the prior art, such as the magnetic leakage, the insufficient starting torque and the low motor efficiency, can be effectively solved.