SU1111847A1 - Apparatus for compacting ferrite powder in the magnetic field - Google Patents

Abstract

A DEVICE FOR PRESSING FERRITE POWDER IN A MAGNETIC FIELD, including a press, a matrix, a punch, an inductor and a DC source, characterized in that. that, in order to improve the magnetic properties and texture of the ferrite, it is equipped with magnetic control units and stepping switches, and the inductor is made in the form of a three, 1-beam ferromagnetic core with coils, the latter being angled at 120 ° relative to each other and connected through a switch block to the SOURCE of the current.

Description

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i MiProgenis refers to powder m;):, i. ; , li particular to devices for: nccajii;.:; (|) e) | 1 (powder) powder in .i.M no.ic.

Pestle pressing device forpnroBi .ix powders in a metal press (() form, containing a press, matrix dt fer; .1 | T1G: - c) -o powder and poinsop, irelaushne l; and-ms1;: hs pa ioroyuk 1 .

I akto vstrojpustvv (:: J is characterized by pedostagopo high I1mitimpmp properties i1mn suppressed; x (() yrktov. () Izv.tlei11mi their small II, yypoststchlo.

The most close to the inventor on technical basis is: supiyusti and achievable cuts, t1) the tattoo is a device for recourse and ij) eppUTOBoro porO1Pka in a magnetic field, including a press, mattress, puapsoi. PTU p PSTOCH1I1K constant current 2.

The inductor sings un () 1 (| maggi-1news. H., Represented by two separate catuplicles, .1 ;;, - keipv1e and upper n1P1Zhpey unicpax, made from (5e) romag; | terial.

, the residuals of the appliance relate to. and the personal properties, in particular. ; | amepp initial magpptoy iiniuiae .MCicti pressed ferrntovye here; ny condition1) 1, spatio-temporal aract; |) 1st1-; ka.I impacting Hie go iai4iHTNO1CH) n (, B: 1-; veteran uyetroystvo magnetic iole not 1g; I; JTOM for the nickle samples of hexa1;) on the first ferrnts of the wazng: kaig api;

In addition, in the machined.) The ferrite sots. Uneven texture, .1 O1 of the th head of the Japanese-1-axis magnetic zero with three-magnetic magnetic conductor 3, made of electrical steel, with three magnetizing catholes 4-6. In the central inductor array there is a matrix 7, nz1toBlenn of non-magnetic material, inside which is a Homercene fernite ionic.

The picture of a magnetic zero in a matrix with a compressible material for three stannon Hi) ix positions of No.h i is in accordance with the above mentioned analogs of the VC scheme: 1N-1N-1H coils 4-6 of the inductor are shown in FIG. 3 (a, b, c). the power supply of the inductor coils contains a rectifier 8 of a non-recurrent current to which, through a block of Hiaron non-switches. Of course, 9, which are recalled by the unit 10, the Units 4-6 are connected.

The device of the nthiscourse f | e) rit () in the zero field works in a general way.

The extruded ferrule nozzle is inserted into the matrix 7 and placed in the neutral part of the inductor on the reference 11ll-2 (Fig. D). Then a voltage is applied to b; yc 10 of control and to a stepper nonclosing switch 9. At the same time, in coil 4 of the inductor there is a no-nite current that flows from point A to point X. in the coil o - (y y and i) Coil 6 — from Z to C. With the indicated current of one current of one current, the resultant magnetically zero in matrix 7 has the form idential for ({) Ш. 3 a. Zatem, b: (; to 10 control through switch 9 forms a new bit, in which the current flows in point 5 to the point K to point K, in point 5, from point Z to C and point point 4 4 from X to A. The indicated current pattern corresponds to the picture of the enl lines of the rez.ch1) Tyr yunimo magnichch O1H) floor, as shown in FIG. 36. Obviously, zero epoch.cho 1; 3 turnover in 1; airav.1ennn but tea Etre.chke. In c.cheaped i1; 3 periods b.tok 10 does not detect current. and in Katun 6 it flows from point C to point Z. in coil 4 — from X to A and in 5 from Y to B. The indicated current pattern 1 corresponds to the pattern of force of the resulting magnetic field, shown in FIG. 3 in. Obviously, but no.che sovornno nlo en1e 1/3 turnover in nairav; 1e1N1I but clockwise.

Train the next one in a block of 10 zero sovérn.1it is still one Hjai in 1/3 (.i6opoTa in the same direction and take the starting position, and the shadow on FI1.2a. Thus, iri nosledovat, CH1D-10m included Three katui1ek inductor cut. Double Hiee magnetic zero in the matrix 7 makes (Hchii G1o: first turn. In the most recent picture changes. magnigog) but, m repeats. Magnetic Iole is a stepping, circular, swing. perpendicular extrusion axis.

After processing Metariel magnetic

zero die 1 hydraulic press punch

moves down (fig. 1) and compresses the ferrite. The stepping, circular, rotating magnetic field and the inductor exert an uninterrupted effect on the compressed material until it is pressed. After the end of pressing, the inductor is turned off, the ferrite is removed from the matrix and sintering is carried out at a high temperature.

Primeieiye inductor schagovogo. circular, rotating magnetic iol, located in the plane, with the axis of pressing pressing, allows to obtain textured samples of ferrites with a J6 density. In this device, the particles of the order of ferrites have the ability to be oriented when turning on the viral) microphilic zero in such a way that the basis of the weight of all crista. 1, Г1ер11С1; Dick m p1n 1 of the pressing axis. way, m chiastas ferrite texture. The degree of orientation of the crista, 1litch registers, the current of the current. With the latest innovations, oriental l-chit ayut with. Magnetic properties. iiocKo.iiiKy the initial magnetic resistance of specimens increases.

In the table, the results of the initial and magnitude 1 initial magnetic magnitude of the ferrosplaplap type specimens are shown. obtained in the magnetic iio.ie of the proposed device and in the axial constant field of the magnetic field of the well-known device.

The maximum value of the initial magnetic permeability of ferrite (used)

As can be seen from Table 1, the device is intended to increase the initial magnetic penetration of ferrites by creating a texture in the silos perpendicular to the ocii of the pressI11. Magpitna and permeability teks27, 0

9.5

turirovanny.x ferrites 2.1 times as high as that for untreated.

The economic effect per 1 ton of ferrite from the use of ire.1.1.1 of one device will be 120,000 rubles.

Powder

Powder

Porosho /

Claims (1)

DEVICE FOR PRESSING FERRITE POWDER IN A MAGNETIC FIELD, including a press, a die, a punch, an inductor and a direct current source, characterized in that. what. in order to improve the magnetic properties and texture of ferrite, it is equipped with control units and step switches of the magnetic field, and the inductor is made in the form of a three-beam ferromagnetic core with coils, the latter being placed at an angle of 120 ° relative to one another and connected through a switch block to a current source.