JPH0323013A - Coiling method for rapidly-quenched thin metallic strip - Google Patents

Abstract

PURPOSE:To coil the rapidly-queched thin metallic strip of the thin amorphous alloy strip, etc., without fracturing and at high speed by making the peripheral velocity of a spool more than the plate making speed of the thin metallic strip when the rapidly-quenched thin metallic strip is cut and coiled on the spool. CONSTITUTION:The thin metallic strip 2 which is made by rapidly-quenching solidification on the surface of a cooling roll 1 in high-speed revolution is led into a transport guid 4 after being peeled with air knife. Next, the rapidly- quenched thin strip 5 is carried with a pinch roll 5 which is loaded on a transport truck 6 and is coiled on the spool 8 when the truck is reached the end position of tranport. When, first, the spool 8 is revolved at high speed, the proximity part of the spool 8 and the thin metallic strip becomes negative pressure in comparison with atmospheric pressure because of air accompanying wave which each has. If the thin metallic strip 2 is once brought into contact with the spool 8, the thin metallic strip 2 is pressed against the spool 8 by atmospheric pressure and is made into the form of coiling-round. Then, the strip is coiled by the friction force between the spool 8 and the thin metallic strip and the pressing of atmospheric pressure.

Description

[Detailed description of the invention]

<Industrial Application Field> The present invention is a non-quality metal F1 manufactured by a single roll method.
This paper relates to a method for winding quenched metal ribbon such as 49F. Conventional technology> In recent years, progress has been made in the development of manufacturing technology that directly processes molten gold R/R (including alloys, hereinafter the same) into metal 'R4iF' using liquid quenching methods such as the single roll method and the twin roll method. It is being done. In order to commercialize this, the provisional manufacturing technology itself related to uniformity of plate thickness and surface texture is essential, but it is equally important to establish the winding technology for winding it into a coil shape. In the case of a crystalline metal ribbon with a diameter of 100μ or more, the production speed is usually 5 m/sec or less due to restrictions on solidification due to heat transfer to the cooling body. In this case,
It can be wound up by conveying it using a mesh belt with a clumper and wrapping it around a heat-resistant bell 1 wrapper, as proposed in JP-A No. 61-88904. On the other hand, in the case of non-quality alloy thin {jF, the plate thickness is 50 μm
It is extremely thin, and the initial manufacturing speed is usually 20 rn/s.
ec or higher, so the conventional technology cannot be applied as is. Moreover, the poor quality alloy ribbon produced changes its material properties depending on the production speed and often loses its mechanical strength significantly, so it is difficult to wind it on the take-up reel or rewind it. The plate-making speed had to be kept constant, making the development of winding technology even more difficult.
Japanese Unexamined Patent Publication No. 57-94453 and Japanese Patent Publication No. 59-34
Japanese Patent No. 467 discloses a technique in which a take-up reel is placed close to a cooling roll to avoid problems with conveyance. A magnet is embedded in the S removal reel and a non-quality alloy ribbon is wound around it. This method is an ingenious method that eliminates the need for complicated conveying techniques by placing the winder close to the cooling roll. However, this method is not necessarily suitable for continuous production because the winder is too close to the cooling roll. In addition, it is not a desirable method in terms of industrial production, as it does not allow sufficient space to install inspection equipment such as I thickness and holes, or to place tension control equipment. In this regard, JP-A-56-12257, JP-A-59-
Publication No. 43772, Japanese Patent Application Laid-open No. 138572-1982, and Japanese Patent Application No. 290477-1987 address head-on solutions to conveyance technology on the premise that a winder is placed at a remote location from the cooling roll. All of these proposals propose using a suction device, a brush roll, or a brush solid roll as a pinch roll to capture and transport the non-quality alloy ribbon. Regarding winding, in JP-A-57-94453 and JP-A-59-34467, a magnet is embedded in the take-up reel and a non-quality alloy 'il'9 is wound around it. ．． However, since this method uses a magnet in the take-up reel, the alloys produced are limited to magnetic materials, which reduces productivity. <Problems to be Solved by the Invention> Therefore, in the present invention, with regard to conveyance, the non-quality alloy citrus flakes peeled off from the cooling rolls are captured between the pinch rolls without being destroyed, and at the same time, the tension necessary for conveyance is applied. As long as it is given, there is no problem, so the above-mentioned conventional techniques are adopted, and regarding the winding system, it is possible to wind not only magnetic material #1 but also all quenched metals or alloy thin 41F produced. The purpose of this is to propose a method that can be used. Means for Solving the Problems> The present invention provides the following methods: After peeling a metal thin fruit rapidly solidified on the surface of a cooling single roll rotating at high speed from the roll with an air knife,
The thin metal 1tF is guided into a conveyance guide, and then caught on a vinyl roll loaded on a conveyance truck, and then the conveyance truck is moved to the rear of the spool, and the thin metal 1tF is cut with a knife provided near the rear of the spool. When winding it onto the spool,
Creating a negative pressure between the spool and the metal ribbon by setting the circumferential speed of the spool to a speed equal to or higher than the plate-making speed of the metal ribbon,
A method for winding a quenched metal ribbon, which is characterized by winding the metal ribbon around the spool, preferably using a push-up roll immediately before cutting the metal ribbon with a knife. 1J is brought into contact with the spool, and preferably a high-speed air flow is introduced by an air nozzle into the gap between the spool and the metal 14I, and preferably the surface of the spool is made into a bolus and the rotation of the spool is This is a winding method for quenching and thinning that suctions the empty air in the direction of the center of the shaft. Effect> First, the process that led to the present invention will be explained. The inventors of the present invention determined that the remote arrangement method basically has an industrial advantage as described above, and therefore, the winding machine was arranged remotely from the cooling roll, and the winding machine was separated from the cooling roll and flew away. We worked on the development of guidance, conveyance, wrapping, and winding technology for non-quality alloy thin 4''. After peeling off from the cooling roll, the non-quality alloy flakes produced by rapid solidification on the cooling roll are
It passes through the conveyance guide and reaches the pinch roll. Here, a brush solid roll, which is a combination of a pair of brush rolls and a solid roll, was used as the vinyl roll. The rapidly solidified alloy ribbon captured by the pinch rolls is transported to a winder by a conveyor cart, where it is wound. At this time, the reel of the winding machine is synchronized with the speed at which the alloy ribbon is being made. However, the plate-making speed at this time is 20 m/sec or more, and the thickness of the pre-produced rapidly solidified metal II band is 100 μm or less, so
As mentioned above, it is almost impossible to wind the material using normal winding methods such as winding with a belt that acts as a guide or winding at low speed with a looper. However, in the course of experiments conducted by the present inventors, it was discovered that under certain conditions, materials could become wrapped around the pinch rolls developed for use in conveyance. In other words, if the rotational speed of the pinch rolls is increased in synchronization with the plate-making speed of the metal ribbon, the conveying speed will increase to 5.
From m+ /see, some winding started to occur, and at 10
He invented a method that allows almost complete winding to occur at m/sec. The present inventors came up with the idea of applying this phenomenon to the winding of a metal ribbon onto a carousel reel, and completed the present invention. Next, the present invention will be explained based on the drawings. As shown in FIG. 1, a thin metal 41 2 produced by rapid solidification on the surface of a high-speed rotating cooling roll 1 is separated from the cooling roll 1 by an air knife 3, and then placed in a conveyance guide 4. Then, the quenched metal ribbon 2 is captured and conveyed by the pinch rolls 5 loaded on the conveying cart 6. Note that a high-speed air flow is created in the conveyance guide 4 by a blower 12 installed behind the pinch roll 5.
Further, a deflection crawler 7 is installed on the entrance side of the conveyance guide, and is able to function when forming a pass line when tension is applied to the rapidly cooled metal ribbon 2.
When the gold WATii 41F 2 reaches the conveyance end position, wrap the metal ribbon 2 around the spool 8. At this time, as shown in FIG. 2(a), if the spool 8 is first rotated at high speed and then the metal ribbon 2 is conveyed at high speed and brought close to the spool 8, the spool 8 and the metal ribbon The adjacent parts of 2 have a negative pressure compared to the atmospheric pressure due to the accompanying flow of air. For this purpose, as shown in FIG. 2(b), once the metal thin strip 2 comes into contact with the spool, the metal m 4iF 2 is pressed against the spool 8 by atmospheric pressure, and the metal thin strip 2 is pressed against the spool 8 by the atmospheric pressure. When the band is cut, it becomes wrapped around the spool 8. Once wound around the spool 8, the metal ribbon 2 is wound up by the NPJ force and atmospheric pressure between the spool 8 and the metal Wi band 2, as shown in FIG. 2(C). At the time of starting this winding, that is, at the time of winding, as shown in FIG. 4, if the push-up roll 9 is brought into contact with the metal ribbon, the winding becomes easier. Furthermore, there is a method of introducing a high-speed air flow into the gap between the spool 8 and the gold i-thin strip 2 using the air nozzle l1 shown in FIG. By providing a means for introducing air into the gold FM thin 4'2 and the spool 8, it is possible to create even more negative pressure in the gap between the gold FM thin 4'2 and the spool 8. The present invention can be carried out more advantageously by using these means alone or in combination. By providing multiple spools on the carousel reel and using them alternately, continuous winding is possible. Next, the present invention will be explained in more detail based on examples. Example I After holding a molten alloy of Fe80-810-Si9-CI &l (atomic %) at 1300''C, a copper alloy was rotated at high speed at a circumferential speed of 25 m/sec from a 100 m wide slit nozzle. A non-quality alloy ribbon with a temporary width of 25 μ- was produced by injecting it directly onto an alloy cooling roll at a plate-making speed of 25 m/sec.
As shown in FIG. 3, the metal FiHtF2 was transported by the pinch rolls 5 to the rear of the spool 8. At this time, the distance between the bus line and the lower end of spool 8 is l.
The bus line was formed to be O-. In this state, the spool 8 is rotated at a speed 0.5% higher than the plate-making speed to create negative pressure between the yi 62 and the carousel reel 8, and the moment the ribbon contacts the spool, the cutting cutter lO is activated. After cutting the I'S, I was able to wrap the I band around the spool 8, and from then on I was able to continue making and winding the board in the III style. Example 2 Fe80-BIO-Si9-CI &ll composition (atomic %)
After holding the molten alloy at 1300'C, it was injected from a slit-shaped nozzle with a width of 100 mm directly onto a copper alloy cooling roll rotating at a peripheral speed of 20 m/sec.
A non-quality alloy ribbon with a thickness of 30 am was produced at a plate making speed of e. As shown in FIG. 3, the gold IFEfl2 was conveyed to spool 8 by using pinch rolls. At this time, gold Pfuel band 2 is placed on spool 8.
They were transported in close proximity at a distance of 0. After the pass line was completed, the air nozzle l1 entered the line and blew high-speed air between the amorphous metal thin 'Jj 2 and the spool 8 so that the metal ribbon 2 was easily wound onto the spool 8. At this time, the air was blown out horizontally so as not to hit the amorphous metal membrane 2, and the air speed at that time was 40 m/sec. In addition, the spool 8 was rotated at a circumferential speed 0.5% higher than the plate making speed. Next, after creating a negative pressure between the metal ribbon 2 and the spool 8, the metal ribbon 2 was brought into contact with the spool 8 using a push-up roll 9 and wound around the spool 8. At this moment, the thin metal ribbon 2 was cut and wrapped by the cutter IO at the moment it was pushed up. Effects of the Invention> As described above, according to the present invention, a quenched metal ribbon such as a non-quality alloy ribbon produced by a single roll method can be guided, conveyed, and wound at high speed without breaking. Therefore, it is of great significance in industrializing quenched metal E44iF production technology. 4,

[Brief explanation of the drawing]

Figure 1 is a schematic diagram of the preparation, guidance, and transportation of rapidly solidified alloy ribbon;
Figures 2 (a), (b), and (C) are winding explanatory diagrams;
Figure 3 is. FIG. 4 is an explanatory diagram of another winding embodiment. Figure 1: Cooling roll, 3: Air knife, 5: Pinch roll, 7: Deflector roll, 9: Push-up roll, H: Air nozzle, 2: Metal thin bill , 4... Conveyance guide, 6... Conveyance truck, 8... Spool, lO... Cutting cutter 12... Suction blower

Claims (1)

[Claims] 1. A thin metal strip rapidly solidified on the surface of a cooling single roll rotating at high speed is peeled off from the roll with an air knife, and then guided into a conveyance guide, and then transferred to a pinch plate loaded on a conveyance truck. After being captured by the roll, the carrier is moved to the rear of the spool, and when cutting the metal thin strip with a knife provided near the rear of the spool and winding it onto the spool, the circumferential speed of the spool is adjusted to 1. A method for winding up a rapidly cooled metal ribbon, the method comprising: creating a negative pressure between the spool and the metal ribbon by increasing the belt manufacturing speed or higher, and winding the metal ribbon around the spool. 2. The method for winding up a quenched metal ribbon according to claim 1, wherein the metal ribbon is brought into contact with a spool using a push-up roll immediately before cutting the metal ribbon with a knife. How to wind the obi. 3. Claim 1 or 2, characterized in that a high-speed air flow is introduced into the gap between the spool and the metal ribbon by an air nozzle.
The described method for winding the quenched metal ribbon. 4. The method for winding a rapidly cooled metal ribbon according to claim 1, 2 or 3, characterized in that the surface of the spool is made porous and air is sucked toward the center of the rotating shaft of the spool.