Metal dispersing apparatus

FIELD: metallurgy, namely systems for producing metal powders.

SUBSTANCE: apparatus includes housing in the form of working chamber with controlled temperature of certain portion of its wall; unit for creating gaseous medium in volume of working chamber; electric power source; at least two electrodes; unit for continuous supply of dispersed metal. Apparatus includes in addition drive unit for rotating in horizontal plane. Said unit is provided with control circuit and electric power supply system. Working chamber is in the form of built-up sleeve having outer and inner members. Inclination angle (from outside) of wall of outer member is in range 16 - 135° relative to rotation plane. Built-up sleeve is fastened by means of bottom portion of outer member with cooled shaft of drive unit for rotating in horizontal plane. Outer metallic member of built-up sleeve has turning for passing cooling agent. Inner member of built-up sleeve is made of high-temperature ceramic material and it has chamfer formed along upper edge of sleeve. Said chamfer is inclined by angle 2 - 68° relative to rotation plane of sleeve.

EFFECT: automatic sizing of discrete particles of fibers, stable production process.

6 cl, 2 dwg, 3 ex

 

The invention relates to metallurgy, and more specifically to means for converting (crushing, granulation) metal in discrete liquid metal patterns (liquid metal agglomerates) for converting them into a metal fiber, fibre, metal wool, metal flakes.

Known means for making metal fibers [1], comprising a vacuum chamber, two induction coils installed inside the specified camera horizontally with a gap between themselves and with temperatures vertically lowered into the gap of the metallic plate, and a rotating disk (cutter)that is installed with the possibility of controlled rotation with high speed and equipped with a variety of blades (knives).

A disadvantage of the known means for producing discrete extended metal structures or metal granules) is the irreproducibility of mesohabitat form of granules with a characteristic size of less than 500 microns due to increasing time differences in the interaction of the source of metal (metal plate) with cutting blades, the inheritance structure obtained then the metal fibers macropathology properties of the original metal plate and increased their fracture due to nonequilibrium conditions forming in part nisotropy the STI mechanical impact when cutting the heated metal plate.

The closest in technical essence and the achieved result is a tool for arc dispersion of the metal [2], consisting of a source of electric power, two electrodes that are installed with the possibility of convergence, and refractory camera made in its wall at least one opening that forms which have formed about the surface of the heater in the form of a resistive spiral or annular film resistance. In addition, one of the windings of the transformer of the power supply is located near the refractory chamber so as to create a magnetic blast" in the direction of the hole.

The lack of funds of the prototype is that it forms a molten metal patterns (granules, drops and/or splashes of molten metal in a very wide (equal to almost two orders) interval weight / size parameters (particle size variation) and with a wide range of kinetic energies (velocities deleted from the zone melting the ends of the electrodes).

The basis of the invention is to improve the quality of discrete metal fine structures (fibers, fibers, wool, scaly particles) due to the substantial reduction of particle dispersion in a liquid state and playing strukturirovaniia on the phase composition.

T the economic result of the present invention is the calibration of discrete liquid metal structures on a rotating disk disperser to montepeloso state and leveling their kinetic energies (speeds) when moving beyond the disk disperser due to the elimination of the integrity of skull and interaction with the gas-vapor mixture, steamy dispersible metal.

This technical result is achieved in that the means for dispersion of metal includes a housing made in the form of the working chamber with controlled temperature of a given wall section, the forming unit of the gas environment in the volume of the working chamber, a source of electrical power, at least two electrodes, and means continuous feed dispersible metal, and includes a motor for rotation in a horizontal plane, equipped with systems of control and power, and the working chamber is in the form of a composite glass formed by the outer and inner elements, with the angle of the outside wall of the outer member 16 to 135 degrees relative to the plane of rotation, and a compound glass sealed bottom part of the outer member with a cooled drive shaft rotation in the horizontal plane, and the outer element of the composite body is made from metal with a groove for the passage of the refrigerant, the internal element of the composite glass is made of high temperature ceramics and provided with a chamfer formed on the upper edge of the Cup at an angle from 2 to 68 degrees relative is on the plane of its rotation.

It is desirable that one of the electrodes are not consumed.

Preferably, prashadhey electrode was connected to an external element of the composite glass.

It is important that prashadhey electrode was introduced into the working chamber volume through the bottom part high-temperature ceramics.

It is advisable to block the formation of the gas environment was equipped with a gas source from a number helium, argon, hydrogen, propane, butane, methane.

Preferably the block forming gas environment to equip the site of regeneration.

Known technical solution, in which a jet of molten metal supplied from the volumetric feeder to the horizontal surface of the rotating disk disperser, made in the form of the impeller with the given number of partitions (blades), the surface of which the stream of crushed (granulated, pulverized or designermade) field of mechanical forces on discrete liquid metal patterns [A.S. USSR №1823293, IPC6B 22 F 9/10, "apparatus for producing fine scaly particles, authors Petukhov I.I. Efanova CENTURIES, publ. 25.07.1995,]. However, in this technical solution is not disclosed to the calibration of discrete liquid metal structures and the level of the kinetic energy of the discrete liquid metal structures, leaving the surface of the rotating dis the new dispersant, it can be concluded that the claimed subject matter meets the criteria of "novelty" and "inventive step".

The claimed invention is illustrated by the following drawings:

- 1 schematically shows a General view of means for dispersion of metal;

- figure 2 is conventionally depicted the working chamber with a non-consumable electrode, enshrined in its bottom part.

List of items:

1. External item.

2. The block forming gas environment.

3. The current leads.

4. The source of electrical power.

5. Prashadhey electrode.

6. Consumable electrode.

7. The means of continuous supply dispersible metal.

8. Actuator rotation.

9. The control unit.

10. The inner element.

11. The angle of the outside wall of the outer member

12. Mount composite glass chamber.

13. Val.

14. The refrigerant.

15. Node temperature control.

16. Chamfer.

17. Gas fittings.

18. The mixer.

19. Pipe shaper gas environment.

20. The site of regeneration.

21. The pipeline site regeneration.

22. The working volume of the chamber.

23. Prashadhey electrode made of tungsten.

Means for dispersion of metal contains a foreign element 1 (Fig 1 and 2), made of heat-resistant structural steel, block forming gas environment 2 (1), provided compliance is concerned shutoff valves (not shown), the current leads 3 (Figure 1), which is an insulated copper cable with a contactor, a source of electrical power 4 (figure 1), prashadhey electrode 5 (Fig 1), consumable electrode 6 (Fig 1 and 2), made of metal, which is subject to conversion (granulation) in discrete liquid metal patterns, a means of continuous supply dispersible metal 7 (figures 1 and 2), generally representing a tribe unit, the rotational drive 8 (1), made in the form of a reversible electric motor, reduction gear and provided with means for regulating the speed in the control unit 9 (Fig 1), the inner element 10 (Fig 1 and 2), are molded from high-temperature ceramics and placed in the glass of the outer member 1 (Fig 1, 2), the slope of which is from the outside wall of the outer member 11 (Fig 1 and 2) is structurally variable parameter, the shaft 13 (Figure 1 and 2), the refrigerant 14 (figures 1 and 2), which provides adjustable temperature depending on commands from a host temperature regulation 15 (1), the edge of the inner element 10 (Fig 1 and 2) provided with a chamfer 16 (figures 1 and 2), providing a controlled blast discrete liquid metal structures from the surface of the rotating disk disperser (not shown).

For the formation of the desired gas atmosphere above the working surface of the inner element 10 (Fig 1 and 2) in the form of dinamicheskogo gas layer, convert then an electric arc in the formation of discrete liquid metal structures in the gas-vapor mixture containing a pair of metal consumable electrode 6 (Fig 1 and 2), a means for dispersion of metal contains a gas valve 17 (Fig 1)connecting block forming gas environment with mixer 18 (Figure 1), equipped with a nozzle forming gas environment 19 (1 and 2). To stabilize the composition of the gas mixture in the process, the tool is also equipped with a host of regeneration 20 (Figure 1), which through the pipeline 21 (figures 1 and 2) removes from the working volume of the chamber 22 (figure 1 and figure 2) waste gas mixture. As narashimha electrode means may include an electrode made of tungsten (Figure 2).

EXAMPLE 1. Operation means for dispersion of the metal is carried out as follows. It utilizes the external element 1 (Fig 1, 2) with the angle of inclination of the wall 11 (Fig 1, 2) 16°and an inner element 10 (Fig 1, 2) composite glass working chamber is made of surface-isomorphic to the external element 1 (Fig 1, 2) high-temperature ceramics with chamfer 20. In the means of continuous supply dispersible metal 7 (figure 1, figure 2) fill wire stainless steel (carbon content of 0.02 to 0.2 wt.%, Nickel 3-20 wt.%, chromium 12-28% wt., moreover, the amount of Nickel and chromium is in the range of 20-35% wt.) D. what amerom 5,2 mm In the control unit 9 (Fig 1) set the pace for the supply of a consumable electrode 6 (Fig 1, 2) 0.15 m/S.

From the control unit 9 (Fig 1) start the rotation drive 8 (1), by setting the rotational speed equal to 850 rpm

The block forming gas environment 2 (1) commute on the flow of argon into the working volume of the chamber 22 (Fig 1, 2) on the gas valve 17 (Fig 1) and through the mixer 18 (Figure 1 in the amount of 30 l/min. and go through the pipe forming gas environment 19 (1, 2) in the working volume of the chamber 22 (Fig 1, 2) argon forms a dynamic protective flow of the gaseous environment above the working surface of the inner element 10 (Fig 1, 2) composite glass working chamber.

Through node temperature regulation 15 (1) establish the required speed of pumping of the refrigerant 14 (1, 2) through the corresponding cavity in the construction of the means for maintaining the surface temperature of the inner element 10 (Fig 1, 2) in the working volume of the chamber 22 (Fig 1, 2), equal to 0.6 of the melting temperature used for forming molten metal. In addition, pumping of the refrigerant 14 (Fig.1, 2) provide an exception abnormal (destructive) overheating of the drive rotation 8 (Figure 1) due to the suppression of the heat transfer part of the arc energy to the actuator rotation 8 (Figure 1) on the shaft 13 (Figure 1). Partially last task is solved by performing a fastening composite glass camera to the Alu 13 (Fig.) in the form of porous (pores over 75% vol.) ceramic insulating insert.

Initiate site regeneration 20 (1, 2), through which the pipeline site regeneration 21 (1, 2) is produced by pumping the waste part of the vapor-gas mixture from the working volume of the chamber 22 (Fig 1, 2) with a speed of 30 l/min, thereby maintaining the thickness of the gas dynamic protective layer of the atmosphere constant.

The control unit 9 (Fig 1) via the electrical power supply source 4 (Fig 1) current leads 3 (1) to expend (1, 2) and prashadhey 5 (1) the electrode fall voltage 55, thus forming an electric arc with a current consumption 480 and with the simultaneous inclusion of actuator means continuous feed dispersible metal 7 (1, 2). In the electrothermal melting end of the consumable electrode 6 (Fig 1, 2) is an intensive formation of liquid phase in the form of drops and splashes and steam dispersible metal. The liquid phase in the form of drops and splashes of molten metal at high speed bombard the working surface of the internal element 10 (Fig 1, 2). Testing collision with its surface at a speed of from 500 to 1000 m/s, these discrete liquid metal patterns are additionally subdivided into smaller liquid droplets captured by the working surface on the adsorption mechanism. A pair of metal form together with argon thermodynamically ner is snoosnoo gas-vapor mixture, actively influencing adsorption properties of the working surface of the internal element 10 (Fig 1, 2).

Fallen on the working surface of the internal element 10 (Fig 1 and 2) and advanced rasplyvshuyusya her initial drops of molten metal again aglomerados in liquid metal steropodon education, which upon reaching a certain size, are the most prevalent impact the field of mechanical forces from the rotating inner element 10 (Fig 1, 2) and thus is discharged from the working surface at an angle thereto, asked chamfer 16 (1, 2).

Due to local interaction with the working surface of the inflowing molten metal surrounded by a vapor-gas medium containing pairs dispersible metal, and due to the intense bombardment of the surface drops and splashes of molten metal having a high kinetic energy, on the working surface of the internal element 10 (Fig 1, 2) is the formation of a solid layer of crust that with one hand, causing the calibration of discrete liquid metal structures to montepeloso state defined by the characteristics mentioned fields, mechanical forces, and on the other hand, entails the leveling of their kinetic energy with which the agglomerates leaving work volume of the chamber 2 (Fig 1, 2). Both of these factors by reducing particle size of the dispersion to 6% contribute reproducible structuring of the products of metal (granules, fibers, wool fibers and so on) on the phase composition.

EXAMPLE 2.

The working procedure of the means for dispersion of metal similar to the one outlined in the previous example sequence. Choose the external element 1 (Fig 1, 2) with the angle of inclination of the wall 11 (Fig 1, 2) 135°and an inner element 10 (Fig 1, 2) composite glass working chamber is made of surface-isomorphic to the external element 1 (Fig 1, 2) high-temperature ceramics with a chamfer 68°. In the means of continuous supply dispersible metal 7 (1, 2) filled wire lead with a diameter of 12 mm In the control unit 9 (Fig 1) set the pace for the supply of a consumable electrode 6 (Fig 1, 2) 0.05 m/S.

From the control unit 9 (Fig 1) start the rotation drive 8(1), by setting the rotational speed equal to 6000 Rev/min

The block forming gas environment 2 (1) commute on the flow of methane in the working volume of the chamber 22 (Fig 1, 2) on the gas valve 17 (Fig 1) and through the mixer 18 (1) of 9 l/min. and go through the pipe forming gas environment 19 (1, 2) in the working volume of the chamber 22 (Fig 1, 2) methane forms a dynamic protective and restorative flow of the gaseous environment above the working surface of the inner element 10 (Fig, 2) composite glass working chamber.

Through node temperature regulation 15 (1) establish the required speed of pumping of the refrigerant 14 (1, 2) through the corresponding cavity in the construction funds to maintain the temperature of the surface of the inner element 10 (Fig 1, 2) in the working volume of the chamber 22 (Fig 1, 2), equal to 1.1 melting point used for the formation of molten lead. In addition, pumping of the refrigerant 14 (Fig.1, 2) provide an exception abnormal (destructive) overheating of the drive rotation 8 (Figure 1) due to the suppression of the heat transfer part of the arc energy to it on the shaft 13 (Figure 1). The problem of eliminating overheating of the actuator rotation and directed the use of porous (pores over 75% vol.) ceramic insulating insert as attachment a composite glass chamber 12 (Fig 1) to the shaft 13 (Fig 1, 2).

Initiate site regeneration 20 (1, 2), through which the pipeline site regeneration 21 (1, 2) is produced by pumping the waste part of the vapor-gas mixture from the working volume of the chamber 22 (Fig 1, 2), supporting thus the thickness of the gas dynamic layer protective reducing atmosphere constant.

The control unit 9 (Fig 1) via the electrical power supply source 4 (Fig 1) current leads 3 (1) consumed (figure 1, figure 2) and prashadhey 5 (Fig 1, the electrode fall voltage 60 V, thus forming an electric arc with a current consumption 350 And with the simultaneous inclusion of actuator means continuous feed dispersible metal 7 (1, 2). In the electrothermal melting end of the consumable electrode 6 (Fig 1, 2) is the formation of liquid phase and vapor dispersible lead. The liquid phase represents the drops and splashes of molten lead, high speed bombarding the working surface of the internal element 10 (Fig 1, 2). Testing collision with its surface at a speed of from 500 to 600 m/s, these discrete liquid metal patterns are additionally subdivided into much smaller liquid droplets of lead captured by the working surface on the adsorption mechanism. A pair of metal form together with methane is thermodynamically nonequilibrium gas-vapor mixture, actively influencing the adsorption properties of the working surface of the internal element 10 (Fig 1, 2).

Located on the working surface of the internal element 10 (Fig 1, 2) drops of molten lead aglomerados in liquid metal steropodon nanoobrazovaniya who reach a size of 60 microns, are decisive influence of the field of mechanical forces rotating inner element 10 (Fig 1, 2) and thus is discharged from the working surface at an angle, the ass is by the chamfer 16 (1, 2).

Due to local interaction with the working surface of the inflowing molten metal in the vapor-gas medium, also containing a pair of the same metal, and due to the intense bombardment of the surface drops and splashes of molten metal having a high kinetic energy, on the working surface of the internal element 10 (Fig 1, 2) is the formation of a solid layer of crust that with one hand, causing the calibration of discrete liquid lead structures to montepeloso state defined by the characteristics mentioned field, but on the other hand, entails the leveling of their kinetic energy with which the agglomerates leaving the working volume camera 22 (Fig 1, 2). Both of these factors subsequently contribute to the effect of reducing the particle size of the dispersion to 4.8% reproducible structuring of the products of lead (granules, fibers, wool fibers and so on) on the phase composition.

EXAMPLE 3

For dispersion of copper applied external element 1 (Fig 1, 2) with the angle of inclination of the wall 11 (Fig 1, 2) 70°and an inner element 10 (Fig 1, 2) composite glass working chamber is made of surface-isomorphic to the external element 1 (Fig 1, 2) high-temperature ceramics with a chamfer 45° (1, 2). In the means of continuous supply dispersible metal 7 (1, 2) supra the given wire of copper with a diameter of 3 mm In the control unit 9 (Fig 1) set the pace for the supply of a consumable electrode 6 (Fig 1, 2) 0.2 m/s From the control unit 9 (Fig 1) start the rotation drive 8 (1), by setting the rotational speed equal to 4500 rpm Block forming gas environment 2 (1) commute to the feed mixture of hydrogen and helium (containing 80% vol. helium) in the working volume of the chamber 22 (Fig 1, 2) on the gas valve 17 (Fig 1) and through the mixer 18 (1) of 12 l/min Going through the pipe forming gas environment 19 (1, 2) in the working volume of the chamber 22 (Fig 1, 2) gas mixture forms a dynamic protective and restorative flow of the gaseous environment above the working surface of the inner element 10 (Fig 1, 2) composite glass working chamber.

Through node temperature regulation 15 (1) establish the required speed of pumping of the refrigerant 14 (1, 2) through the corresponding cavity in the construction funds to maintain the temperature of the surface of the inner element 10 (Fig 1, 2) in the working volume of the chamber 22 (Fig 1, 2), equal to 0.75 of the melting temperature used for forming molten metal. In addition, pumping of the refrigerant 14 (Fig.1, 2) provide an exception abnormal (destructive) overheating of the drive rotation 8 (Figure 1) due to the suppression of the heat transfer part of the arc energy to it on the shaft 13 (Figure 1). Partially last task is solved completed the eat fastening composite glass camera to the shaft 13 in the form of porous (pores over 75% vol.) ceramic insulating insert.

Initiate site regeneration 20 (1, 2), through which the pipeline site regeneration 21 (1, 2) is produced by pumping the waste part of the vapor-gas mixture from the working volume of the chamber 22 (Fig 1, 2), supporting thus the thickness of the gas dynamic layer protective reducing atmosphere constant.

The control unit 9 (Fig 1) via the electrical power supply source 4 (Fig 1) current leads 3 (1) to expend (1, 2) and prashadhey 5 (1) the electrode fall voltage 58, thus forming an electric arc with a current consumption 600 And with the simultaneous inclusion of actuator means continuous feed dispersible copper 7 (1, 2). In the electrothermal melting end copper consumable electrode 6 (Fig 1, 2) is the formation of liquid phase and vapor dispersible metal. The liquid phase represents the drops and splashes of molten copper, high speed bombarding the working surface of the internal element 10 (Fig 1, 2). Testing collision with its surface at a speed of from 700 to 1000 m/s, these discrete liquid copper patterns are additionally subdivided into much smaller liquid droplets captured by the working surface on the adsorption mechanism. A pair of metal form together with a gas mixture of hydrogen-helium" thermodynamically ravnovesnuyu gas-vapor mixture, actively influencing adsorption properties of the working surface of the internal element 10 (Fig 1, 2). Located on the working surface of the internal element 10 (Fig 1, 2) drops of molten copper aglomerados in liquid metal steropodon nanoobrazovaniya that upon reaching a certain size, are exposed to the field of mechanical forces rotating inner element 10 (Fig 1, 2) and thanks to him, discharged from the working surface at an angle defined by the chamfer 16 (1, 2).

Due to local interaction with the working surface of the inflowing melt the copper in the vapor-gas medium, also containing a pair of the same metal, and due to the intense bombardment of the surface drops and splashes of molten copper having high kinetic energy, on the working surface of the internal element 10 (Fig 1, 2) is the formation of a solid layer of crust that with one hand, causing the calibration of discrete liquid copper structures to montepeloso state defined by the characteristics mentioned fields, and, on the other hand, entails the leveling of their kinetic energy with which the agglomerates of copper leaves the working volume of the chamber 22 (Fig 1, 2). Both of these factors subsequently contribute to the effect of reducing the particle size of the dispersion up to 3% of the play is Dima structuring products during curing.

Sources of information

1. RF application for invention No. 2002125454/0, IPC723 P 17/06, "a method of manufacturing a metallic fiber and a device for its implementation", the author Park, young -, publ. 20.04.2004,

2. AS the USSR №98050 dated November 21, 1950, class 49/3 "apparatus for producing metal powders", author Asianlove.

1. Means for dispersion of metal, comprising a housing made in the form of the working chamber with controlled temperature of a given wall section, the forming unit of the gas environment in the volume of the working chamber, a source of electrical power, at least two electrodes, and means continuous feed dispersible metal, characterized in that it further comprises a motor for rotation in a horizontal plane, equipped with systems of control and power, and the working chamber is in the form of a composite glass formed by the outer and inner elements, with the angle of the outside wall of the outer member 16 to 135° relative to the plane of rotation, moreover, the composite glass sealed bottom part of the outer member with a cooled drive shaft rotation in the horizontal plane, and the outer element of the composite body is made from metal with a groove for the passage of the refrigerant, when et is m internal element of the composite glass is made of high temperature ceramics and provided with a chamfer, formed on the upper edge of the Cup at an angle from 2 to 68° relative to the plane of its rotation.

2. The tool according to claim 1, wherein one of the electrodes is made prashadam.

3. The tool according to claim 2, characterized in that prashadhey electrode is connected to the outer element of the composite glass.

4. A tool according to any one of claim 2 to 3, characterized in that prachowny electrode introduced into the working chamber volume through the bottom part high-temperature ceramics.

5. The tool according to claim 1, characterized in that the block forming gas environment with sources of gas from a number helium, argon, hydrogen, propane, butane, methane.

6. The tool according to claim 1 or 5, characterized in that the forming unit of the gas environment is equipped with a host of regeneration.



 

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6 cl, 2 ex

FIELD: powder metallurgy; production of granules from melts by impact centrifugal spraying.

SUBSTANCE: proposed method includes passing the melt through hole in refractory material and crushing in vacuum chamber of hollow head whose cavity is preliminarily filled with low-melting material at low viscosity. Crystallization of drops is performed on side surface of vacuum chamber at residual pressure of no more than 0.1 kPa; these side surfaces are cooled on the outside with water. Device proposed for realization of this method includes metal receptacle and vacuum crushing chamber whose side surface is cooled with water; vacuum chamber is provided with hermetic vacuum cover with refractory guide tube inserted in it. Working surface of hollow crushing head is conical in shape and is provided with spiral blades; it is secured for free rotation. Granule receiver is made in form of two coaxial rings and is mounted on bottom of crushing chamber.

EFFECT: improved quality of granules; increased productivity; automation of sorting-out granules.

3 cl, 2 dwg

FIELD: powder metallurgy, namely manufacture of ferrites.

SUBSTANCE: wetting agent containing polyvinyl alcohol, water and powder of manganese-zinc ferrite includes in addition in order to provide uniform fraction size poly-acrylic acid, triethanolamine and octanol at next relation of ingredients, mass %: polyvinyl alcohol, 2.0 - 6.0; poly-acrylic acid, 0.5 - 2.0; triethanolamine, 1.0 - 4.0; octanol, 0.05 - 0.5; water, 30 - 65; powder of manganese-zinc ferrite, the balance.

EFFECT: enhanced uniformity of fraction size of powder.

2 tbl, 1 ex

FIELD: metallurgy, namely methods for making metallic fibers that may be used for manufacturing composite materials.

SUBSTANCE: method comprises steps of feeding in vertical plane stream of melt metal from nozzle of feeder onto rotating cooled surface; forming on said surface from layer of melt metal discrete liquid structures of metallic fibers; cooling fibers until their crystallization; before feeding stream of melt metal, setting its temperature in range (1.04 x t - 1.18 x t), where t - crystallization temperature of melt metal. Metallic fibers are formed by two stages. At first stage liquid structures of metallic fibers are moved at rate 0.5 - 148 m/s on cooled surface. At second stage metallic fibers are subjected to percussion cooling on ribbed surface of outer disc-type cooled crystallizer at cooling rate in range 3/3 - 25.7.

EFFECT: production of metallic fibers with possibility of increasing range of their fineness at different phase content.

7 cl, 3 dwg, 3 ex

FIELD: metallurgy, namely manufacture of metallic fibers with amorphous and(or) microcrystalline structure.

SUBSTANCE: apparatus includes housing, feeder for supplying melt metal; inner and outer disc crystallizers mounted in the same axis with possibility of separate rotation of their working surfaces one relative to other; rotation drives of outer and inner disc crystallizers. Novelty is at least two calibrating devices in the form of metallic plates mounted on working surface of outer disc crystallizer. There is coaxial cone recess in working surface of inner disc crystallizer.

EFFECT: enlarged assortment of metallic fibers.

10 cl, 5 dwg, 3 ex

The invention relates to the production of finely granulated lithium spherical shape of a given diameter
The invention relates to the casting of magnesium and magnesium alloys

The invention relates to techniques for dispersion melts and can be used in powder metallurgy, and chemical industry

The invention relates to powder metallurgy

FIELD: metallurgy, namely manufacture of metallic fibers with amorphous and(or) microcrystalline structure.

SUBSTANCE: apparatus includes housing, feeder for supplying melt metal; inner and outer disc crystallizers mounted in the same axis with possibility of separate rotation of their working surfaces one relative to other; rotation drives of outer and inner disc crystallizers. Novelty is at least two calibrating devices in the form of metallic plates mounted on working surface of outer disc crystallizer. There is coaxial cone recess in working surface of inner disc crystallizer.

EFFECT: enlarged assortment of metallic fibers.

10 cl, 5 dwg, 3 ex

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