JPS63137550A - Production apparatus for fine metallic wire - Google Patents

Abstract

PURPOSE:To facilitate the recovery of fine metallic wire, which is cast on a rotary drum, by planting many fine wire holding hairs having flexibility on the inner circumferential face of the rotary drum. CONSTITUTION:On the inner circumferential face 50 of a rotary drum 10, the stainless steel-made wires 40 are planted, to form the fine wire holding hairs 42. The rotary drum 10 is rotated and molten metal is injected on a liquid coolant layer 24 from a molten metal injection nozzle 30 under pressurizing by Ar gas, and the molten metal injection nozzle 30 is reciprocately moved toward the rotating axial direction by a traversing mechanism to obtain the fine metallic wire 38 in the rotary drum 10. The fine metallic wire 38 is caught by the fine wire holding hairs 42 and even rotation of the drum 10 is stopped, the fine metallic wire 38 is not detached from the inner face of the drum 10. After stopping the rotation of the drum 10, the fine metallic wire 38 is smoothly wound to a bobbin without getting entanglement.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an improvement in an apparatus for manufacturing thin metal wires using a rotating liquid spinning method.

[Prior art] Methods for obtaining thin metal wires directly from molten metal include casting, blooming,
It has attracted particular attention in recent years from the viewpoint of energy saving by omitting intermediate processes such as rolling, and the development of metal materials with new properties obtained by rapid solidification. The excellent properties obtained by rapid solidification include ultra-fine crystal grains, non-polarization, homogenization, expansion of the solid solubility limit, and strength, corrosion resistance, electrical, and magnetic properties due to amorphization, etc. 6 For example, amorphous The thin metal wire structure, that is, amorphous fiber, has high strength and strength that cannot be obtained with conventional crystalline metals.
Since it exhibits high toughness, it is considered to be used as a high-strength material, and because it has unique magnetic properties, it is considered to be used as a functional material.

Conventionally announced methods for directly obtaining thin metal wires from molten metal can be broadly classified into the following four types.

1) Extrusion method 2> Rotating liquid spinning method 3) PDME method 4) Taylor method The extrusion method of 1) injects a melt molten in an inert gas into a fluid with a viscosity comparable to that of molten metal. This method aims to stabilize the jet flow and form fibers.

The spinning method in rotating liquid (2) is a method in which a cooling liquid layer is formed in a rotating drum by centrifugal force, and molten metal is injected into this cooling liquid to form fibers.

3) PDME method is Pendant Drop Mel
This is an abbreviation for the tE xtracLion method, which is a method in which pendant-shaped metal droplets are attached to the side of a disk rotating at high speed, and then pulled out and solidified.

The Taylor method (4) is a method in which metal placed in a glass tube is heated and melted, the glass tube softened by heating is pulled out together with the melt inside, and a drum is wound up.

The present invention relates to the improvement of the spinning method in 2) of the above-mentioned four methods. In FIG. 0, which is a side sectional view, the rotating drum 10 includes a hollow cylindrical portion 12, a coolant outflow prevention plate 16 attached to the negative side thereof and having a circular opening 14 in the center, and a cooling liquid outflow prevention plate 16 attached to the negative side of the hollow cylindrical portion 12 and having a circular opening 14 in the center, and a hollow cylindrical portion 12 on the other side of the cylindrical portion 12. It is integrally formed with a closing plate 18 that covers the entire surface of the
An output shaft 22 of a motor 20 is fixed to the center of the closing plate 18, and the rotating drum 10 rotates at high speed. Cooling liquid is supplied to the inner periphery of the rotating drum 10 that rotates at high speed, and the cooling liquid forms a rotating cooling liquid layer 24 due to centrifugal force. The molten metal injection device 26 consists of a vertical molten metal heating furnace 28, a molten metal injection nozzle 30 attached downward to the lower end of the molten metal heating furnace 28, and a molten metal pressurizing pipe 32 attached to the upper part of the molten metal heating furnace 28. , is inserted through the opening 14 of the rotating drum 10 and is movable in the axial direction of the rotating drum 10.

To obtain thin metal wire using this rotating liquid spinning device,
The rotary drum 10 is rotated to supply cooling liquid to form a rotary cooling liquid layer 24 on the inner periphery of the rotary drum 10. Next, the master alloy inserted into the molten metal heating furnace 28 is melted to form the molten alloy 3.
4, insert the molten metal injection device 26 through the opening 14 of the rotating drum 10, and position the molten metal injection nozzle 30 above the inlet end 25a of the rotating cooling liquid tank 25. Next, inert gas is introduced into the molten metal pressurizing piping 32. At the same time, the molten metal injection device 26 slowly moves from the inlet end 25 of the rotary cooling liquid tank 25 toward the inner end 25b of the rotary cooling liquid tank 25. The injected molten alloy jet stream 36 is injected into the rotating cooling liquid layer 24 and rapidly cooled to become a thin metal wire 38 . By this method, thin wire 3
8 is continuously formed and stored in a rotating cooling liquid bath 25 within the rotating drum 10.

In this conventional rotating liquid spinning method, the continuously produced fine metal wires 38 are not collected from the rotating drum 10 and are accumulated in the rotating cooling liquid bath 25 of the rotating drum 10. When the machine is stopped and the thin metal wire 38 is taken out, the thin metal wire 38 stuck to the inside of the rotating drum loses its centrifugal force and falls into a ball-like shape due to the centrifugal force, causing the metal wires to become entangled! The drawback was that it was extremely difficult to unravel and recover the i38.

[Problems to be Solved by the Invention] The present invention has been made in view of the above-mentioned problems associated with recovering cast fine metal wires in the production of fine metal wires by spinning in a rotating liquid. An object of the present invention is to provide a manufacturing device for a thin metal wire that can easily recover a thin metal wire cast into the metal wire.

[Means for Solving the Problems] The thin metal wire manufacturing apparatus of the present invention includes a cooling liquid outflow prevention plate formed on the side surface of a drum, and a cooling liquid layer formed on the inner surface of the drum by centrifugal force by rotating the drum. , an apparatus for manufacturing fine metal wire by moving a molten metal injection device that injects a molten metal jet into the cooling liquid layer in the direction of the rotational axis of the drum within the drum, wherein the inner circumferential surface of the drum is flexible. The summary is that a large number of mvi-retained and retained amounts were transplanted.

[Function] The molten metal jet cast into the cooling liquid layer from the molten metal injection device solidifies in the cooling liquid layer and becomes a thin metal wire, which is visible on the inner surface of the 0-rotation drum where it is pressed against the inner surface of the rotating drum by centrifugal force. Since a large number of fine wire holding molds made of steel wire rods are set upright, the thin metal wires are held between the fine wire holding molds in the order in which they are cast. The wire rod used as the thin wire holding type preferably has a diameter of 0°1 to 0.2 mm and a length of about 5 to 10 mm, and the material may be any material that has visibility and corrosion resistance, such as stainless steel. Alternatively, plastic or the like is suitable. The cross section of the thin wire holding type may be round, flat, or oval, and the interval between the m wire holding types planted in the width direction of the drum is 0.3
~51 is suitable, and the number is 30 to 500. On the other hand, the appropriate interval in the rotational direction of the drum is 5 to 10 degrees. The drum is rotated at 250-350 rpm,
Even if the rotating drum is stopped to collect the thin metal wires and centrifugal force is no longer applied to the thin metal wires, the thin metal wires are held by the thin wire holding mold, so they do not separate from the inner surface of the rotating drum. When collecting the thin metal wire by winding it around a bobbin or the like, it can be easily wound up by pulling it out from the final casting end of the thin metal wire.

[Embodiment] According to an embodiment of the present invention, there is provided a thin metal wire manufacturing apparatus in which an m-wire holding member having a large number of visible thin wire holding molds is detachably fitted onto the inner surface of the drum. According to this embodiment, after the casting of the metal 11M wire is finished, the fine wire holding member holding the fine metal wire can be taken out from the rotating drum and the metal m-wire can be recovered, so that the casting operation for recovering the metal fine wire can be performed. This has the advantage that work is extremely efficient without any interruptions.

[Examples] Preferred embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a cross-sectional view of a rotating drum according to an embodiment of the present invention.
0 width 10cm, coolant outflow prevention plate 16 inner diameter 56cm
On the inner circumferential surface 50 of the zero-rotation drum 10, there is a wire 40 made of stainless steel with a diameter of 0.1 and a length of 5-plane, as shown in the partially enlarged plan view of the inner circumferential surface 50 of the rotary drum in FIG. So, the horizontal distance A is 0.3ml1. The vertical spacing B is 5-ronmari, and it is planted vertically.
A thin wire holding mold 42 is formed as a whole.

The rotation speed of this rotating drum 10 is set to 300 rpm, and F
The alloy of etsSi+oB+i was heated with Ar gas pressurized at 4 to 5 kgf/
It was injected into the cooling liquid layer 24 by the c plow 2. The angle of incidence is 60
°, and the depth of the cooling layer liquid 24 was 1.5 cm. Further, the distance between the molten metal injection nozzle 30 and the coolant surface was set to 5 -, and the molten metal injection nozzle 30 was caused to reciprocate in the direction of the rotation axis by a traverse mechanism. The moving speed was 0.3 m per rotation of the rotating drum 10. There were 300 pieces in 5 layers in a zero-rotation drum, with an average diameter of about 3000 m and 14 mm (1
) Gold m+1Ill138 was obtained. As shown in FIG. 3, the gold amm 38 is all held by the thin wire holding mold 42, and even if the rotation of the rotating drum 10 is stopped, the metal thin wire 3
No. 8 did not separate from the inner surface of the rotating drum 10. After the rotating drum 10 stopped, the thin metal wire 38 was collected, but the metal wire 1
I was able to wind the A38 onto the bobbin extremely smoothly without any tangles.

In this embodiment, the thin wire holding mold 42 is directly planted on the inner circumferential surface 50 of the rotary drum 10, but as shown in FIG. A wire rod 40 is pierced through a rubber base cloth 44 from the back side and planted vertically on the base cloth 44 to form a thin wire holding mold 42. A holding member 46 is glued to the back of the base cloth 44, and the front and back of this holding member 46 are The ends may be joined to form an annular shape, and as shown in the cross-sectional view of the rotating drum in FIG. 42 is made removable, so that after the fine metal wire casting is completed, the fine wire holding mold t12 is taken out from the rotating drum 10 together with the metal wire &138 to collect the gold m thin wire 38, and another fine wire holding mold 42 is removed from the rotating drum 10. Since it can be fitted onto the inner surface 50 of the metal wire for the next casting operation of the fine metal wire, it has the advantage that operational efficiency can be improved. Further, although this embodiment shows a case in which the rotating drum rotates vertically, it can also be applied to a case in which the rotating drum rotates horizontally.

[Effects of the Invention] As explained above, the present invention is a thin metal wire manufacturing apparatus using a rotating liquid spinning method, in which a thin wire holding mold made of a flexible wire is erected on the inner surface of a rotating drum, and The thin metal wire is held between the ItIB wire holding bristles, and even when the rotating drum is stopped to collect the thin metal wire, the thin metal wire is held by the thin wire holding type. Therefore, the fine metal wire can be unwound sequentially from the final end of the casting without separating from the inner surface of the rotating drum and wound onto a bobbin, etc., so the fine metal wire can be collected extremely efficiently without the gold gIsa getting tangled. It has the excellent effect of being able to

[Brief explanation of the drawing]

FIG. 1 is a partial sectional view of a rotating drum according to an embodiment of the present invention;
Fig. 2 is a partially enlarged plan view of the thin wire holding type according to the embodiment shown in Fig. 1, Fig. 3 is a partially enlarged sectional view of the thin wire holding type holding a thin metal wire, and Fig. 4 is a partial enlarged sectional view of the thin wire holding type in the embodiment shown in Fig. 1. A partial cross-sectional view of the implanted plant. FIG. 5 is a partial sectional view of the rotating drum with the holding member fitted;
FIG. 6 is a front view of a conventional thin metal wire manufacturing apparatus, and FIG. 7 is a side sectional view of FIG. 6. 10... Rotating drum, 16... Coolant outflow prevention plate,
24... Cooling liquid layer, 26... Molten metal injection device,
30... Molten metal injection nozzle, 36... Molten metal jet, 40... Wire rod, 42... Thin wire holding type, 44...
・Base fabric, 46... Holding member, 50... Inner peripheral surface of rotating drum Patent applicant: Aichi Steel Co., Ltd. - Agent: Patent attorney Akira Tsuchikawa・;゛・)'
'' Figure 1 Figure 2 Figure 3 Figure 4 Figure 6 Figure 7

Claims (2)

[Claims] (1) A molten metal injection device that forms a cooling liquid outflow prevention plate on the side surface of a drum, rotates the drum, forms a cooling liquid layer on the inner surface of the drum by centrifugal force, and injects a molten metal jet into the cooling liquid layer. In an apparatus for manufacturing a thin metal wire by moving it in the direction of the rotation axis of the drum in the drum,
An apparatus for producing a thin metal wire, characterized in that a large number of flexible thin wire holding bristles are planted upright on the inner peripheral surface of the drum. (2) A thin metal wire manufacturing apparatus according to claim 1, characterized in that a thin wire holding member having a large number of flexible thin wire holding bristles is removably fitted to the inner surface of the drum. .