JPS60166147A - Apparatus for producing continuously fine metallic wire - Google Patents

Abstract

PURPOSE:To enable continuous production of a fine metallic wire by fitting slidable seal rings onto the space part of rotary drums which are provided horizontally in series, making the rings openable and closable and providing a traveling belt in contact with the rings so as to cover the space between the rings. CONSTITUTION:Cylindrical drums 15, 15' having the same diameter are horizontally provided in series rotatably in the same direction. A cooling liquid tank is formed of circumferentially provided liquid tank side plates 24, 24' and a space 22. Seal rings 25, 25' are slidably fitted onto the outside peripheral surface at the drum end of the spaing 22 and guide rollers 26 are pressed thereto so as to close the space between the rings 25 and 25' in the upper position of the drums and to open the same in the lower position. A fine metallic wire 19 formed of the molten metal which is ejected from a nozzle 14 and is solidified by quick cooling in the liquid tank in the drums 15, 15' is taken out to the outside of the liquid tank by a traveling belt 27 in contact with the rings so as to cover the ring space 29 while the rings 25, 25' are opened. The continuous production of the fine metallic wire is thus made possible and productivity is improved.

Description

[Detailed description of the invention] The present invention relates to an apparatus for manufacturing fine metal wire.

In recent years, a so-called rotating liquid spinning method has been proposed as a method for manufacturing thin metal wires having a circular cross section from molten metal, and the establishment of this technology is progressing rapidly. That is, JP-A-56-1
No. 65016, JP-A No. 57-52550.

JP-A No. 57-79052, etc., and the feature of these prior art is that a liquid layer is formed by centrifugal force on the circumferential surface of a rotating cylindrical drum, and molten metal is ejected into the liquid layer as a jet. According to these methods, thin metal wires with a circular cross section and excellent properties can be easily obtained, and the cooling rate is faster than that of conventional methods. It is recommended that it is particularly suitable for manufacturing thin metal wires made of amorphous metals or metals containing fine crystal grains, and the present inventors have proposed the method as disclosed in the above-mentioned disclosure document. We have been conducting intensive research into the development of manufacturing equipment and manufacturing technology for spinning in rotating liquid, but we have now hit a major hurdle.

I bumped into it. The reason is that these rotating liquid spinning methods are batch systems. Namely.

To explain these methods, a cooling liquid layer is formed by centrifugal force on the circumferential surface of a cylindrical drum that rotates twice, and by keeping the surface and interior of this cooling liquid layer stable, the molten metal flow ejected as a jet is disturbed. The molten metal flow is allowed to stably penetrate into the cooling liquid layer without causing any trouble, and after rapidly solidifying the molten metal flow, it is stably wound around the inner wall of the cylindrical drum by centrifugal force to form a desired thin metal wire. It is something to do.

An example of this will be explained in more detail with reference to Fig. 1.The procedure for manufacturing thin metal wires by the two-rotation submerged spinning method is as follows: First, a predetermined amount of a master alloy having a predetermined alloy composition prepared in advance is poured into The metal is charged into a melting furnace 2 and heated and melted to form a molten metal 3, which is then placed on standby for ejection from a nozzle 4 with a predetermined hole diameter provided at the tip of the furnace 2. Next, the cylindrical rotating drum 5 (hereinafter abbreviated as drum) is rotated at a predetermined number of rotations, and a predetermined amount of cooling liquid 6 is supplied from a supply device (not shown). Subsequently, the melting furnace system (heating device 1 and melting furnace 2) is set at a predetermined position in the space inside the drum 5 as shown. After that, inert gas is introduced at a predetermined pressure through the pipe 7 leading to the melting furnace 2, and the molten metal 3
A pressure is applied to the jet 8 and the jet 8 is ejected from the nozzle 4. The jet 8 enters the rotating cooling liquid 6;
It rapidly solidifies and becomes a thin metal wire 9 (shown as a dotted cross section).

It is wound up on the inner wall of the drum 5. in this case,
Since the thin metal wire 9 usually needs to be wound up to a certain length, the melting furnace system (heating device 1 and melting furnace 2) is wound 1-10 times in the width direction of the inner periphery of the drum 5. After all of the initially charged master alloy has been ejected, the melting furnace system is moved outward from the space of the drum 5, and then the rotation of the drum 5 is stopped, and the cooling liquid 6 is no longer held by centrifugal force and falls. is placed in a container (not shown), and then a bundle of thin metal wires manufactured on one side of the circle j of the drum 5 is taken out. A conventional manufacturing apparatus for the rotating liquid spinning method has been a batch-type manufacturing apparatus in which this procedure is carried out in 14J cycles. Therefore, as can be easily inferred.

Such manufacturing equipment is limited to the production of 5I111 thin metal wires per 1,000 batches due to restrictions imposed by the size of the machinery and equipment, and the production of thin metal wires per 1,000 batches is limited to 5I111.
The productivity is extremely low due to the fact that the post-processing work takes time and so on. The reality was that it had some shortcomings, making it extremely difficult to turn it into a business.

The present inventors overcame the above-mentioned obstacles of conventional manufacturing equipment, took advantage of the basic features of the spinning submerged spinning method, and achieved the power of significantly increasing productivity: It provides continuous manufacturing equipment.

Zunawara 1 The device of the present invention has two cylindrical drums having the same inner and outer diameters arranged horizontally in series with a predetermined gap between them so as to be able to rotate in the same manner. A cooling liquid layer is formed with the liquid tank side plate provided around the inner peripheral surface, and a seal ring is slidably fitted on each of the outer peripheral surfaces of both drum ends in one gap, and a guide roller is attached to the seal ring. 9. When the seal ring at the bottom of the drum is opened, the gap between the two seal rings is covered and touched. It is equipped with an endless running heald that takes up the thin metal wire that has been rapidly solidified in contact with it, sends it out of the liquid layer, and guides it to a winding device.Both drums and the running bell I- rotate to form a liquid layer. This continuous manufacturing apparatus for thin metal wire is characterized in that a molten metal injection device is inserted into the drum from the outside and placed above the seal ring gap.

Hereinafter, one embodiment of the apparatus of the present invention will be described in detail with reference to FIGS. 2 to 5.

FIG. 2 is a longitudinal cross-sectional view of the device, in which two cylindrical drums 15', 15'' with the same inner and outer diameters are supported by bearings 21, 21' and are rotatably provided with a predetermined gap 22. Rotational motion at the same speed is provided by a motor (not shown), a timing heel I, and a tamping pulley 23.23'' which are horizontally arranged in series. Also 3-car cylindrical drum 15.1
5' Both have a tank side plate 2 at 71 on the inner peripheral surface near the gap 22.
4.24' is provided around the side plate 24.24' and the gap 2
2 to form a cooling liquid layer with a constant width and depth.

Further, a seal ring 25.25'' is slidably attached to each of the outer peripheral surfaces of both 1° rams 15.15° of the gap 22, and both seal rings 25.25'
The guide roller 26 is brought into contact with both seal rings 25.
．． The opening/closing movement is set so that the opening/closing movement of the drum 25' is set in a constant orbit such that when it is in the lower position, it is closed, and when it is in the lower position, it is opened. This opening/closing link will be described later. Reference numeral 27 denotes an endless traveling heald I-, and the traveling heald 27 has a cross section as shown in its side view in FIG.
Below the ram 15.15” Hertbourg 28-2
The metal is wound around B" and is rapidly solidified in the liquid layer by running at the same speed as the circumferential speed of the drum 15 to 15", covering the seal ring gap 29 when the seal ring is opened at the lower part of the drum. The thin wire 19 is taken up, sent out of the liquid layer, and guided to a take-up device 30. 31 is a separator roller. FIG. 3 also shows the manner in which the guide rollers 26 are arranged.

The traveling heald 27 is brought into contact with the lower part of the drum so as to sandwich the seal ring 25.25' with the outer periphery of the 15.15" cylindrical tram, and this contact is made within approximately 135 degrees with respect to the center of rotation of the drum. Heald pulley 2 so that it forms an arc range
Place 8 to 28 degrees of paper. Figure 4 is a conceptual diagram of the opening and closing movement of the nine seal rings 25.25', and is a developed plan view assuming that both seal rings 25.25' are cut at the highest apex of the cylindrical drum 15.15'. 0'' at the apex is when seal ring 25 + 25' is closed, and 180 on the opposite side
" indicates the open state of the seal ring 25.25' at the lower position of the cylindrical drum 15.15'. The seal ring 25.25' is slid open and closed by the guide roller 26, so it follows the opening and closing movement. It has sufficient hardness and elasticity and coefficient of friction to prevent liquid leakage on each surface such as the contact surface with the cylindrical drum, the contact surface between the two seal rings, the contact surface with the running belt, etc. It is necessary to choose the material.Figure 5 shows the second
This is an enlarged view of the main part of the diagram, sole ring 25.25"
The cylinder F1.15.15' is closed at the upper position of the guide roller 26 by the i6 regulation. 32.32
' is a lubricating mechanism that facilitates sliding of the seal ring 25.25'. In this embodiment, the liquid groove 33 is provided in order to simplify the supply of cooling liquid, and for this purpose both the liquid groove 23 and the drums 15, 15' of the liquid groove component part are provided.
The inner and outer diameters of the ends are increased. In this case, the cooling liquid is supplied from the liquid groove 33, flows through a hole formed in a part of the liquid layer side plate 24, and overflows the liquid layer side plate 24 on the opposite side of the liquid layer 1, thereby forming a stable cooling liquid layer. Furthermore, the overflowing cooling body is passed through a cooler (not shown) to the W1 ring to keep the liquid temperature constant.

Note that an auxiliary member such as a magnet 34 may be provided on the running belt 27 in order to ensure that the thin metal wire 19 is taken over. 35.35' is a holder for the guide roller 2G. Also, molten metal 13. Melting furnace 12. Heating device 1
1. The metal ejection device equipped with the nozzle 14 is inserted into the drum from the outside of the cylindrical drum 15.15'' when the cylindrical tram 15.15' is operated and a cooling liquid layer is formed, and is placed above the seal ring gap 29. It is.

Afterwards, a thin metal wire is manufactured. 17 is an inert gas introduction pipe.

Since the manufacturing apparatus of the present invention has the above configuration,
Since the production of thin metal wires can be carried out continuously even though the equipment is not huge, the number of production staff can be significantly increased, productivity can be improved, and the temperature of the cooling liquid can be kept uniform at all times. Therefore, every part of the obtained thin metal wire is homogeneous, making it an extremely excellent manufacturing device.

The metal applicable to the present invention is a pure metal.

Examples include metals containing trace amounts of impurities or all alloys, but alloys that have excellent properties when rapidly solidified, such as alloys that form an amorphous phase or alloys that form a non-equilibrium crystalline phase, etc. This is the most preferred alloy. For example, “Science J No. 8, 1978 62-7
2 pages 1 Bulletin of the Japan Institute of Metals Vol. 15 No. 3, 1976 1
51 to 206, [Metal J December 1, 1971 issue, pages 73 to 78, and Japanese Patent Application Laid-open No. 49-91014,
JP-A-50-101215, JP-A-49435820
issue.

JP 51-3312, JP 51-4017, JP 51-4018, JP 51-4019, JP 51-65012, JP 51-73923 3 No. 51-78705, JP-A-51-79613,
This is as described in many publications such as JP-A-52-5620, JP-A-52-114421, and JP-A-54-99035. Among those alloys.

Representative alloys with excellent amorphous formation ability and practical use include Fe-5i-B system, Fe-P-C system, and Fe
-I'-B system.

Examples include Co-5i-ll series, Ni-5i-B series, etc., but it goes without saying that a wide variety of types can be selected from metal-semimetal combinations and metal-metal combinations/I. Moreover, by taking advantage of its compositional characteristics, it is possible to assemble an alloy with excellent properties that cannot be obtained with conventional crystalline metals. Further, as a specific example of an alloy that forms a non-equilibrium crystalline phase, see 5, for example, "Tetsu to Hagane" Vol. 66 (1980).
No. 3, pp. 382-389.

1-Journal of the Japan Institute of Metals, Vol. 44, No. 3, 1980 2
pp. 45-254, rTRANsAcTONs OF
TIIE JAI”ANINSTITtlTE Kano MI
iMALS J VOL 2011io, 8 AUgu
st 1979 pp. 468-471 9 Japanese Institute of Metals Autumn Conference Summary Collection (October 1979) pp. 350, 3
re-Cr-hellium alloy described on page 51, Fe-
C-based alloys and 2 Japan Institute of Metals Autumn Conference General Lecture Summaries (1)
Mn-^l described on pages 423-425 (November 981)
-C-based alloys, re-Mn- to 1-C-based alloys, and the like.

[Brief explanation of the drawing]

Fig. 1 is a schematic longitudinal cross-sectional view of a conventional device, Fig. 2 is a longitudinal cross-sectional view of an embodiment of the device of the present invention, Fig. 3 is a side view of Fig. 2, and Fig. 4 is a seal ring opening and closing. A conceptual diagram of the movement is shown, and FIG. 5 is an enlarged view of the main part of FIG. 2. 1, 11-- heating device, 2.12-- melting furnace, 3.13-- molten metal, 4.14-- nozzle, 5, 15, 15°-- cylindrical drum, 6- ------
-Cooling liquid, 8-111-Jet, 9.19--Thin metal wire, 22--One gap, 23.23'-Timing pulley, 24.24'--Liquid tank side plate, 2
5.25'--Seal ring, 26--Guide roller, 27--Travel heald. 28~28111 j---Belt pulley, 29-
--- Seal ring gap, 30 --- Winding device, 32.32' --- Lubricating mechanism. 33-11---Liquid groove, 34---Magnet. Patent applicant: Unico Power Co., Ltd.

Claims (1)

[Scope of claims] In order to form a cooling liquid layer with the side plate of the liquid tank provided around the surface, and to make the outer periphery of both drum ends in one gap face each other, the space between the nine shears is closed at the drum bottom position and opened at the bottom position. It is equipped with an endless running belt that pulls up the thin metal wire that is rapidly solidified by contacting the opening/closing cover, sends it out of the liquid layer, and guides it to two winding devices.Both drums and the running belt rotate to form a liquid layer. 1. A continuous manufacturing apparatus for thin metal wire, characterized in that the molten metal ejecting device is inserted into the re-drum from the outside when the molten metal is spouted, and is disposed above the shishing gap.