CN2222959Y - Magnetic orientation anisotropic bonded magnet extrusion molding machine - Google Patents
Magnetic orientation anisotropic bonded magnet extrusion molding machine Download PDFInfo
- Publication number
- CN2222959Y CN2222959Y CN 94217058 CN94217058U CN2222959Y CN 2222959 Y CN2222959 Y CN 2222959Y CN 94217058 CN94217058 CN 94217058 CN 94217058 U CN94217058 U CN 94217058U CN 2222959 Y CN2222959 Y CN 2222959Y
- Authority
- CN
- China
- Prior art keywords
- magnetic
- feeding tube
- spreader
- screw rod
- adopts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
The utility model relates to a magnetic orientation extrusion moulding equipment. The extrusion molding machine is characterized by comprising a single screw rod with low length-diameter ratio and low compression ratio and with gradually changed equidistance, a torpedo-shaped shunt shuttle, an assembled orientation molding die and the like. The machine has the characteristics of reasonable structure, high orientation degree of the extruded magnet, high magnetic powder content and the like, and is particularly suitable for preparing the high-performance anisotropic bonded magnet by using the ferrite magnetic powder prepared by using cheap iron phosphorus as a raw material.
Description
The utility model relates to the equipment of ferrimagnetism dusty material extrusion modling processing, is a kind of equidistant gradual change screw extruder, is specially adapted to the moulding of anisotropic bond permanent magnetism.
Existing magnetic field orientating make-up machine, the general structure that all adopts plastic extruder mainly partly is made up of motor, belt pulley, reductor, feed hopper, conveying screw rod, machine barrel, heating collar, molding port mould etc.Because the design of screw rod and machine barrel is unreasonable, this extruder only is applicable to the extrusion modling of the ferromagnetic oxide powder that adopts iron oxide red to make raw material or is applicable to that the ferrite magnetic powder content is lower than the moulding of the bonded permanent magnet of 90WI%.And at present domestic for reducing cost, it is that raw material is produced magnetic material that great majority adopt iron scale.Because screw slenderness ratio big (L/D16-22), compression ratio (ω 2-4) height causes transmission torque little, and it is big to transmit resistance, and high magnetic is filled magnet fluid transmission difficulty when extrusion molding, and the product magnetic characteristic is difficult to shortcomings such as raising, and the utmost point is waited to improve.
The development purpose of extrusion shaping machine of the present utility model be to provide a kind of adapt to iron oxide red and iron scale do the permanent magnet extrusion modling of raw material, improve magnetic filling and magnet density, obtain the anisotropic bonded magnet make-up machine of high-orientation magnet.
Extruder of the present utility model is the belt pulley by motor [1], the shaft of reductor [2] is connected with machine barrel [6] with the screw rod [5] of flange with the body part, at machine barrel [6] top dress anker hopper [3] by reductor one end, establish heating collar [4] at the shell of machine barrel [6], another termination of machine barrel [6] is connected with spreader [7] termination by rear flange [8], spreader [7] is connected with feeding tube [13] by forward flange [9] again, at feeding tube [13] shell heating collar [10] is installed, the molding port mould is connected with the feeding tube outlet, each parts is level and is connected to form complete machine, and accumbency is on two supports.It is characterized in that:
The interior screw rod of a, connection deceleration machine barrel adopts the single screw rod of equidistant gradual change, for low draw ratio, gets 8-12, and low compression ratio is got 1.4-1.6.Because the change of draw ratio and compression ratio makes transmitting range shorten 1/3, frictional force diminishes, and guarantees extruding smoothly of high magnetic fill material, the problem of fluid transmission difficulty when solving high magnetic and filling the magnet extrusion modling.
B, by the spreader that rear flange wheel is connected with machine barrel, adopt torpedo-shaped tap hole structure, have big or small identical equidistant circular hole along the spreader periphery, and with feeding tube cross section maintenance certain angle, lead to the other end from feeding tube one end.Make material form back-pressure along the screw rod direction, improve the plasticizing quality of material, its formed compression ratio reaches 2.9-3.2, improves the density of magnetic charging quantity and magnet.Add the spreader device and also make the rotation status of material become straight flow regime simultaneously, be beneficial to the magnetic aligning of fluid in mould.
The extruding magnetic material outlet of c, the feeding tube that is connected with spreader by the preceding wheel of the law is right after the molding port mould, it is the assembly unit mouth mould that adopts band magnetic field, be combined into the last lower wall of mouthful model cavity with two magnetic conductive boards, the outer magnetic pole of each assembly unit of magnetic conductive board, magnetic pole twines with coil, coil is outward square iron core, and the left and right sides wall of mouthful model cavity adopts the antimagnetic steel assembly unit, forms a day font closed magnetic circuit.This assembly unit mouth mould, under the situation that electric current is constant in weighing apparatus DC power supply electromagnet, magnetic field intensity improves 40-60% in the comparable integral type mouth model cavity, obtains the anisotropic bonded magnet of high-orientation magnet.
The utility model, company's process of extruder is as follows: the hopper of at first material being packed into, rotating part drives screw rod [5] rotation, make material enter in the machine barrel [6] and push ahead, machine barrel [6] shearing friction heat heating between screw rod [5] and machine barrel [6] by its external heated circle [4] and material, then make material softening and be flow regime, meanwhile, material also is subjected to the stirring of screw rod and evenly disperses, and enters the magnetic aligning shaped device with spiral shell to state, behind spreader [7], making material be straight flows, and form pressure along the screw rod direction, increase the uniformity of plasticizing, at last by assembly unit mouth mould [11] moulding, because molding port mould upper and lower has electromagnet, form magnetic field in mouthful model cavity, make material under the action of a magnetic field, produce magnetic aligning, finally be processed into and have anisotropic bonded ferrite magnet.
Fig. 1 is the utility model extruder structure schematic diagram.
Fig. 2 is the spreader [7] and feeding tube [13] the structure enlarged drawing of the utility model extruder.
Fig. 3 is molding port mould [11] structural representation of the utility model extruder.
Fig. 4 is the B-B view of Fig. 2.
Magnetic aligning anisotropic bonded magnet extrusion shaping machine of the present utility model as shown in Figure 1, mainly is made up of drive system, body, three parts of magnetic aligning shaped device.Wherein: running part comprises motor [1], belt and belt pulley, reductor [2]; Body partly comprises screw rod [5], machine barrel [6], heating collar [4], hopper [3], rear flange [8]; The magnetic aligning shaped device comprises spreader [7], forward flange [9], feeding tube [13], heating collar [10], molding port mould [11], coil [12].The integral body of connected structure cost equipment as shown in the figure.
As shown in Figure 1, the draw ratio of screw rod adopts low draw ratio, get (8-12), low compression ratio, compression ratio is as shown in Figure 1 and Figure 2, spreader [7] is evenly to have 16 φ 8.5mm holes on the spreader [7] with the angle and the sectional area of feeding tube [13] by following configuration, feeding tube [13] outlet aperture φ 20mm, 36 °-40 ° of spreader [7] angle of flare α, 18 °-20 ° of angle of throat α, feeding tube [13] goes into to hold 28 °-32 ° of angle β, goes out to hold angle β 16-20 °.As shown in Figure 3, magnetic field orientating molding port mould [11] be by iron core [17], up and down two magnetic poles [18], coil [12], magnetic conductive board [15], antimagnetic steel magnetic isolation plate piece [16] interconnect assembled up and down.When electric current by after being enclosed within the coil [12] on the iron core [17], producing magnetic field on two magnetic poles [18] up and down, magnetic pole [18] clamps from above-below direction and goes up bottom guide [15], and magnetic conductive board [15] directly becomes the last lower wall of mouthful model cavity, thereby shortened magnetic pole gap, magnetic isolation plate piece [16] adopts antimagnetic steel to block the magnetic line of force and passes from the runner edge, forces the magnetic line of force to concentrate on the runner die cavity, becomes the left and right sides wall of mouthful mould simultaneously every pole [16].
The utility model extruder has rational in infrastructurely, extrudes the high and particle content advantages of higher of magnet degree of orientation, and it is that the ferromagnetic oxide powder that raw material makes is made the high-performance anisotropic bonded permanent magnet that particularly suitable adopts cheap iron scale.Embodiment:
It is as follows with the effect that reaches that the utility model is specifically implemented parameter:
Extrude magnet cross section chi 3 * 12mm; Screw diameter φ 45mm, screw channel partial-length 432mm, screw slenderness ratio are 9.6, compression ratio is 1.5; The long 176mm of spreader, 16 φ 8.5 holes residing calibration garden diameter phi 55mm, 38 ° of the angles of flare, 20 ° of angle of throat, feeding tube go into to hold 30 ° at angle, go out to hold 18 ° at angle; The formed compression ratio of spreader and feeding tube 3: 1; Front and back flange outer diameter φ 180mm, thick 35mm; The extruder motor adopts commutator machine, power output 10/3.3KW, rotating speed 1410/470r.p.m; Reductor work speed ratio 1: 13, power output 10KW; Electrothermal ring 1000W; 250 ℃ of machine barrel maximum heating temperatures; Mouth model cavity magnetic field intensity is up to 1192.94KA/m; Extrude the maximum powder containing quantity 91.5wt% of bonding iron oxygen oxysome; The degree of orientation reaches 86.96%.Employing is that the magnetic property index that the ferrite powder of feedstock production and anisotropy that the CPE binding agent is made are extruded magnet all reaches the performance index that part has surpassed like product with the iron scale, and referring to table 1, magnet density reaches 3.71g/cm.
Table 1
| The performance numbering | Br | Hc | H | (BH)max | Remarks |
| T | K.A.m | K.A.m | K.J.m | ||
| XSJ-148 | 0.2626 | 168 | 218 | 12.6 | |
| G-1 | 0.2478 | 167 | 185 | 11.4 | Standard specimen |
Claims (2)
1, magnetic aligning anisotropic bonded magnet extrusion shaping machine comprises that the resistance wire heating collar is installed in the outside of motor, reductor, screw rod, hopper, machine barrel, feeding tube, molding port mould, machine barrel and feeding tube, its practical novel being characterised in that:
Screw rod in the machine barrel of a, connection reductor adopts the single screw rod of equidistant gradual change, for low draw ratio, gets 8-12, and low compression ratio is got 1.4-1.6;
B, by the spreader that rear flange wheel is connected with machine barrel, adopt torpedo-shaped tap hole structure, have big or small identical equidistant circular hole along the spreader periphery, and with feeding tube cross section maintenance certain angle, lead to the other end from feeding tube one end;
The extruding magnetic material outlet of c, the feeding tube that is connected with spreader by the preceding wheel of the law is right after the molding port mould, it is the assembly unit mouth mould that adopts band magnetic field, be combined into the last lower wall of mouthful model cavity with two magnetic conductive boards, the outer magnetic pole of each assembly unit of magnetic conductive board, magnetic pole twines with coil, coil is outward square iron core, and the left and right sides wall of mouthful model cavity adopts the antimagnetic steel assembly unit;
2, magnetic aligning anisotropic bonded magnet extrusion shaping machine according to claim 1, it is characterized in that evenly having on the spreader of the torpedo-shaped that adopts the hole of 16 φ 8.5mm, 36 °-40 ° of the shuttle body angles of flare, 18 °-20 ° of angle of throat, feeding tube goes into to hold 28 °-32 ° at angle, goes out to hold 16 °-20 ° at angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94217058 CN2222959Y (en) | 1994-07-20 | 1994-07-20 | Magnetic orientation anisotropic bonded magnet extrusion molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94217058 CN2222959Y (en) | 1994-07-20 | 1994-07-20 | Magnetic orientation anisotropic bonded magnet extrusion molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2222959Y true CN2222959Y (en) | 1996-03-20 |
Family
ID=33832601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94217058 Expired - Fee Related CN2222959Y (en) | 1994-07-20 | 1994-07-20 | Magnetic orientation anisotropic bonded magnet extrusion molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2222959Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296152C (en) * | 2002-10-21 | 2007-01-24 | Bl化学有限及两合公司 | Device and method for reshaping bar-shaped materials particularly for drawing and extruding |
| CN103887056A (en) * | 2014-03-01 | 2014-06-25 | 潍坊德诺磁业有限公司 | Neodymium-iron-boron adhesive magnet forming machine and machining process for neodymium-iron-boron adhesive magnet |
| CN109166720A (en) * | 2018-08-22 | 2019-01-08 | 浙江东阳东磁稀土有限公司 | A kind of method of continous way production hot extrusion radiation ring |
| CN109500398A (en) * | 2018-12-28 | 2019-03-22 | 上海三环磁性材料有限公司 | A kind of binding rare earth permanent magnet oriontation molding die |
-
1994
- 1994-07-20 CN CN 94217058 patent/CN2222959Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296152C (en) * | 2002-10-21 | 2007-01-24 | Bl化学有限及两合公司 | Device and method for reshaping bar-shaped materials particularly for drawing and extruding |
| CN103887056A (en) * | 2014-03-01 | 2014-06-25 | 潍坊德诺磁业有限公司 | Neodymium-iron-boron adhesive magnet forming machine and machining process for neodymium-iron-boron adhesive magnet |
| CN103887056B (en) * | 2014-03-01 | 2017-07-04 | 潍坊德诺磁业有限公司 | The processing technology of neodymium iron boron bonded magnet |
| CN109166720A (en) * | 2018-08-22 | 2019-01-08 | 浙江东阳东磁稀土有限公司 | A kind of method of continous way production hot extrusion radiation ring |
| CN109500398A (en) * | 2018-12-28 | 2019-03-22 | 上海三环磁性材料有限公司 | A kind of binding rare earth permanent magnet oriontation molding die |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203580087U (en) | Twin-screw extruder for differential nano material | |
| CN2222959Y (en) | Magnetic orientation anisotropic bonded magnet extrusion molding machine | |
| CN210617244U (en) | Cooling device for plastic pipe extrusion | |
| CN206953492U (en) | A kind of injection device of vertical injection molding machine | |
| CN216152918U (en) | Anti-blocking injection molding machine for feed channel based on water-cooling circulation cooling | |
| CN204019932U (en) | PE tubing high-speed extrusion molding device | |
| CN204869582U (en) | Novel LFT extrude device | |
| CN103887056B (en) | The processing technology of neodymium iron boron bonded magnet | |
| CN203774081U (en) | NdFeB bonded magnet forming machine | |
| CN202862565U (en) | Coloring material distributor with color PVB (Polyvinyl Butyral) film insert | |
| CN211763355U (en) | Plastic extruding mold core for plastic pipe production | |
| CN211566987U (en) | Composite material forming equipment | |
| CN103489558B (en) | Injection moulding is composition, injection moulding pellet and preparation method for pellet | |
| CN208005946U (en) | A kind of extrusion molding apparatus of radial multi-pole magnetic ring | |
| CN215396734U (en) | Extrusion device is used in production of silane crosslinked polyethylene insulating material | |
| CN213916105U (en) | Metal powder injection molding screw injection device with heating inner core | |
| CN207156409U (en) | A kind of extrusion die with double-layer filtering net | |
| CN219563519U (en) | Straw recycling and processing equipment | |
| CN218256680U (en) | Automobile line extrusion production line | |
| CN113715190A (en) | Granulation method and equipment for short fiber reinforced thermoplastic resin | |
| CN212860374U (en) | Double-screw extruder for plastic filler production | |
| CN215241579U (en) | A vacuum extrusion device for production of gangue baked brick | |
| CN216860535U (en) | Polyether-ether-ketone extruder | |
| CN210011240U (en) | Raw material mixing device for plastic product molding | |
| CN213500752U (en) | Novel aircraft nose structure for double screw extruder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |