JP4217871B2 - Liquid metal quenching equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a metal ribbon manufacturing apparatus including amorphous metal and crystalline ribbon.
[0002]
[Prior art]
As one method for producing a metal foil strip, a molten metal (hereinafter referred to as molten metal) is sprayed from a nozzle of a nozzle container toward the outer peripheral surface of a rotating cooling body that rotates at high speed, and rapidly cooled and solidified in a ribbon shape or a tape shape. This method is known as a liquid quenching method. This method is classified into a single roll method, a twin roll method, a centrifugal quenching method, and the like depending on the type of the rotating cooling body. By these methods, a metal ribbon can be obtained by appropriately selecting the components, composition, cooling conditions, etc. of the molten metal (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
Japanese Examined Patent Publication No. 8-18114 (page 1-3, Fig. 1)
[0004]
By the way, the production of a metal ribbon by the liquid quenching method may be performed in the atmosphere depending on the metal component to be produced, or may be performed in an inert gas such as argon, helium, or nitrogen, or in a vacuum. In particular, if the metal ribbon to be produced is easily oxidized, in other words, if the activity is high, it is essential to manufacture in an inert gas or vacuum atmosphere in order to prevent oxidation or spontaneous ignition.
A conventional representative manufacturing apparatus is shown in FIG. FIG. 15 shows an apparatus for producing a metal ribbon by a single roll method in an inert gas or in a vacuum. In the figure, 1 is a liquid metal quenching device, 2 is a sample recovery section, 4 is a sample recovery container, 5 is a gate valve, 7 is a flange, 8 is a sample introduction section, 9 is a chamber, 10 is a rotary cooling body, and 11 is a high frequency. A coil, 12 is a nozzle container, 13 is a nozzle raising / lowering mechanism, 14 is a pressurized gas introduction pipe for molten metal injection, 14a is a valve for injection gas, and 15 is a leak adjustment valve.
In the liquid metal quenching apparatus 1, a chamber 9 accommodates a rotary cooling body 10, a high-frequency coil 11, and a heat-resistant nozzle container 12 that also serves as a melting crucible. Then, the metal material for melting is charged into the nozzle container 12, this container 12 is connected to the pressurized gas introduction pipe 14 for molten metal injection, and the nozzle container 12 is connected to the rotary cooling body 10 by driving the nozzle elevating mechanism 13. Prepare to descend. Next, the injection gas valve 14a and the leak adjustment valve 15 are closed and exhausted from the chamber 9, and after the inside of the chamber 9 reaches a predetermined degree of vacuum, the rotary cooling body 10 is rotated to a required peripheral speed, High frequency melting of the melting metal raw material in the nozzle container 12 is performed. After the melting metal raw material is completely melted, the nozzle raising / lowering mechanism 13 is driven to lower the nozzle container 12 to the position just above the rotary cooling body 10, and at the same time, the electromagnetic valve 14a is opened to open the argon gas and helium gas at appropriate pressures. Alternatively, the metal ribbon is produced in a vacuum by injecting the molten metal inside the nozzle container 12 toward the outer peripheral surface of the rotary cooling body 10 with an inert gas such as nitrogen. Further, by introducing an inert gas such as argon, helium, or nitrogen into the chamber 9 through the leak adjustment valve 15, the metal ribbon can be manufactured in an inert gas atmosphere.
In the case of the single roll method, the manufactured metal ribbon flies to the sample collection unit 2 through the sample introduction unit 8 according to the peripheral speed of the rotary cooling body, and is accumulated. In the case of the twin roll method, the sample recovery unit 2 is provided below the rotary cooling body and accumulated therein. Accumulated metal ribbons that are prone to oxidation, in other words, those with high activity, are manufactured in an inert gas or vacuum atmosphere to prevent oxidation or spontaneous ignition, and the recovery part is a glove. It is desirable to be able to handle in an inert gas such as a box (not shown) or in a vacuum.
Further, as a small-scale production or small experimental apparatus, there is an apparatus (manufactured by Makabe Giken) as shown in FIG. In this case, a gate valve 5 is provided immediately before the sample collection unit 2, and the sample collection unit 2 can be detached by detaching the flange 7. The sample collection unit 2 can be charged into an inert atmosphere such as a glove box, and the next process can be performed in an inert atmosphere, and is suitable for small-scale production and small experimental devices.
[0005]
[Problems to be solved by the invention]
However, in this conventional liquid metal quenching device, the metal ribbon does not fit in the sample collection part due to variations in sample preparation conditions, and the thin metal body is cut by the gate valve valve when the gate valve is closed. The metal powder adheres to reduce the life of the gate valve. In the worst case, there is a problem that when the gate valve is closed and the collecting part is removed, the collecting part may leak.
Therefore, the present invention solves these problems, and provides a liquid metal quenching apparatus that can recover a metal ribbon having a large activity without being oxidized and transfer it to the next process.
[0006]
[Means for Solving the Problems]
In order to solve the above problem, the present invention has the following configuration.
(1) A chamber that is connected to an exhaust device and has a leak adjustment valve that introduces an inert gas, a rotary cooling body that is provided in the chamber and rotates at high speed, and a raw metal is melted and stored and injected into the rotary cooling body. A liquid comprising a nozzle container, a high-frequency coil for heating the nozzle container, and a sample recovery unit for recovering a thin metal ribbon, which comprises a flange and a gate valve, rapidly cooled and solidified by the rotary cooling body while maintaining the atmosphere. In the metal quenching apparatus, a shutter mechanism for cutting the metal ribbon is provided on the rotary cooling body side of the gate valve .
(2) A chamber having a leak adjustment valve connected to an exhaust device and introducing an inert gas, a rotating cooling body provided in the chamber and rotating at high speed, and a raw metal is melted and stored and injected into the rotating cooling body. A metal ribbon that is composed of a nozzle vessel, a high-frequency coil that heats the nozzle vessel, a flange and a gate valve, and that has a valve and is rapidly cooled and solidified by the rotary cooling body is recovered in a state in which the atmosphere is maintained. In the liquid metal quenching apparatus provided with the sample recovery section, a shutter mechanism for cutting the metal ribbon is provided on the rotary cooling body side of the gate valve .
(3) It has a second shutter mechanism which is disposed with a predetermined gap between the shutter mechanism and the gate valve and accumulates the metal ribbon.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
The overall configuration of the metal quenching apparatus of the present invention is the same as the conventional one (FIG. 15).
Before the sample preparation, the inside of the vacuum chamber 9 is evacuated to 1 × 10 ⁻³ Pa in advance, and then the sample is prepared by filling with argon gas. By spraying from the nozzle container 12 toward the outer peripheral surface of the rotary cooling body 10, the produced metal ribbon moves to the sample introduction unit 8 according to the peripheral speed of the rotary cooling body 10. The handling of the metal ribbon from the sample introduction unit 8 to the sample recovery unit 2 will be described below.
[0008]
(First embodiment)
FIG. 1 shows a first embodiment of the present invention. FIG. 1 is a side sectional view showing details of a sample recovery unit of a liquid metal quenching apparatus. In the figure, reference numeral 3 denotes a shutter mechanism, and other reference numerals are the same as in the prior art.
The metal ribbon that has moved through the sample introduction unit 8 passes through the opened shutter mechanism 3 and the gate valve 5, flies to the sample recovery unit 2, and is accumulated. At this time, due to variations in the metal ribbon production conditions, the produced metal ribbon may not be able to fit in the sample recovery unit 2 and may overflow from the shutter mechanism unit 3. In this case, the shutter mechanism 3 is closed, Since the metal ribbon is cut, when the gate valve 5 is closed, the overflowing metal ribbon remains on the upper part of the closed shutter mechanism 3, and the metal ribbon below the shutter mechanism 3 is accommodated in the sample collecting section. . The sample recovery unit 2 was removed from the flange 7, and the sample recovery unit 2 was loaded into an argon glove box (not shown) to recover the sample.
According to this example, an argon glove box atmosphere having an oxygen content of 10 ppm can collect a sample without increasing the oxygen concentration. On the other hand, in the case where the conventional shutter mechanism is not attached (FIG. 16), the oxygen content in the glove box increased at a frequency of 1 or more times in 5 times when the sample was collected in the argon box. This is an oxygen leak from the gate valve.
[0009]
(Second embodiment)
FIG. 2 shows a second embodiment of the present invention. FIG. 2 is a side sectional view showing details of the sample recovery unit of the liquid metal quenching apparatus. The reference numerals in the figure are the same as those in the first embodiment. The difference from the first embodiment is that the inner diameter of the cylindrical portion directly above the gate valve 5 is made narrower than the inner diameter of the seal portion of the gate valve.
The operation of collecting the metal ribbon sample is the same as in the first embodiment.
According to the present embodiment, since the inner diameter of the cylindrical portion directly above the gate valve 5 is narrower than the inner diameter of the seal portion of the gate valve, the sample is collected without damaging the gate valve when the metal ribbon is fragile and the debris powder is likely to be generated. can do. In the case of the first embodiment, in the sample in which such debris is likely to be generated, when the sample is collected in an argon glove box atmosphere having an oxygen content of 10 ppm, The oxygen content increased. However, in this embodiment, the sample can be collected without increasing the oxygen concentration.
[0010]
(Third embodiment)
FIG. 3 shows a third embodiment of the present invention. FIG. 3 is a side sectional view showing details of the sample recovery unit of the liquid metal quenching apparatus. In the figure, reference numeral 4 denotes a sample collection container, and other reference numerals are the same as those in the second embodiment.
The metal ribbon that has moved through the sample introduction unit 8 passes through the opened shutter mechanism 3 and gate valve 5, flies to the sample collection unit 2, and is accumulated in the sample collection container 4.
By providing this sample collection container, it is only necessary to take out the sample collection container 4 at the time of collecting the sample in the glove box, not only the workability is improved, but the metal powder derived from the metal ribbon does not adhere to the gate valve, The life of the gate valve is improved. If the sample collection container has a handle, workability is further improved.
[0011]
(Fourth embodiment)
A fourth embodiment of the present invention is shown in FIG. FIG. 4 is a side sectional view showing details of the sample recovery unit of the liquid metal quenching apparatus. The reference numerals in the figure are the same as those in the third embodiment. The difference from the third embodiment is that the inner diameter of the cylindrical portion directly above the gate valve 5 is made narrower than the inner diameter of the seal portion of the gate valve.
The metal ribbon that has moved through the sample introduction unit 8 passes through the opened shutter mechanism 3 and gate valve 5, flies to the sample collection unit 2, and is accumulated in the sample collection container 4. At this time, due to variations in the metal ribbon production conditions, the produced metal ribbon may not be able to fit in the sample recovery unit 2 and may overflow from the shutter mechanism unit 3. In this case, the shutter mechanism 3 is closed, Therefore, the metal ribbon is cut, and when the gate valve 5 is closed, the overflowing metal ribbon remains on the upper part of the closed shutter mechanism 3, and the metal ribbon below the shutter mechanism 3 is accommodated in the sample recovery unit 2. . Further, since the inner diameter of the cylindrical portion directly above the gate valve 5 is narrower than the inner diameter of the seal portion of the gate valve 5, it is possible to collect the sample without damaging the gate valve even when the metal ribbon is fragile and debris powder is likely to be generated. In addition, by providing a sample collection container, it is only necessary to take out the sample collection container at the time of collecting the sample in the glove box, not only the workability is improved, but the metal powder derived from the metal ribbon does not adhere to the gate valve, The life of the gate valve is improved. If the sample collection container has a handle, workability is further improved.
According to this embodiment, the sample can be recovered without increasing the oxygen concentration. In the third embodiment, a sample with a brittle metal ribbon and prone to generating debris powder has a frequency of about once every 10 times when the sample is collected in an argon glove box atmosphere having an oxygen content of 10 ppm. The oxygen content in the box was rising.
[0012]
(Example 5)
FIG. 5 shows a fifth embodiment of the present invention. FIG. 5 is a side sectional view showing details of the sample recovery unit of the liquid metal quenching apparatus. In the figure, 3a is a first shutter mechanism, 3b is a second shutter mechanism 3b, and the other symbols are the same as in the fourth embodiment.
The metal ribbon that has moved through the sample introduction section passes through the opened first shutter mechanism 3a and is accumulated immediately before the closed second shutter mechanism 3b. The produced metal ribbon may overflow more than the first shutter mechanism 3a. In this case as well, the first shutter mechanism 3a is closed and the metal ribbon is cut there. By opening the mechanism 3b, it passes through the gate valve 5 that has been opened in advance, and is accommodated in the sample recovery section.
If the elasticity of the metal ribbon is large, the first embodiment may not fit. However, according to this embodiment, the sample can be easily recovered.
[0013]
(Sixth embodiment)
FIG. 6 shows a sixth embodiment of the present invention. FIG. 6 is a side sectional view showing details of the sample recovery unit of the liquid metal quenching apparatus. The reference numerals in the figure are the same as those in the fifth embodiment. The difference from the fifth embodiment is that the inner diameter of the cylindrical portion directly above the gate valve 5 is made narrower than the inner diameter of the seal portion of the gate valve.
The operation of collecting the metal ribbon sample is the same as in the fifth embodiment.
According to the present embodiment, since the inner diameter of the cylindrical portion directly above the gate valve 5 is narrower than the inner diameter of the seal portion of the gate valve, the sample is collected without damaging the gate valve even when the metal ribbon is brittle and shards are likely to be generated. be able to. Even if the metal ribbon has high elasticity and is brittle, it is easy to generate debris powder.
[0014]
(Seventh embodiment)
FIG. 7 shows a seventh embodiment of the present invention. FIG. 7 is a side sectional view showing details of the sample recovery unit of the liquid metal quenching apparatus. The reference numerals in the figure are the same as those in the third embodiment. The difference from the third embodiment is that the height of the sample recovery container 4 is made shorter than the length between the shutter mechanism section 3 and the gate valve 5, and the sample recovery container 4 is installed between them.
The metal ribbon that has moved through the sample introduction section 8 passes through the opened shutter mechanism 3 and is accumulated in the sample collection container 4 having a height L placed on the closed gate valve 5. . At this time, due to variations in the metal ribbon production conditions, the produced metal ribbon may not be able to fit in the sample recovery unit 2 and may overflow from the shutter mechanism unit 3. In this case, the shutter mechanism 3 is closed, Therefore, the metal ribbon is cut, and by closing the gate valve 5, the overflowing metal ribbon is accumulated in the sample collection container 4 installed on the closed gate valve 5. Thereafter, the sample collection container 4 is stored in the sample collection unit by opening the gate valve. Therefore, for example, only the sample collection container needs to be taken out when collecting the sample in the glove box.
According to this embodiment, not only the workability is improved, but the metal powder derived from the metal ribbon does not adhere to the gate valve, and the life of the gate valve is improved. If the sample collection container has a handle, workability is further improved.
[0015]
(Eighth embodiment)
FIG. 8 shows an eighth embodiment of the present invention. FIG. 8 is a side sectional view showing details of the sample recovery unit of the liquid metal quenching apparatus. In the figure, 6 is an exhaust port, 6a is a valve provided in the exhaust port 6, and other configurations are the same as in the prior art.
The metal ribbon that has moved through the sample introduction unit 8 passes through the opened gate valve 5 and flies to the sample recovery unit 2 to be accumulated. At this time, due to variations in the metal ribbon production conditions, the produced metal ribbon may not be able to fit in the sample collection unit 2 and may overflow from the gate valve 5. The ribbon is stored in the sample collection unit 2. Then, after closing the gate valve 5 and the valve 6a provided at the exhaust port, the sample collection unit 2 is removed from the flange 7, and the sample collection unit 2 is inserted into an argon glove box (not shown), thereby Can be collected. According to this embodiment, the lifetime of the gate valve is improved without the debris generated from the metal ribbon adhering to the gate valve.
[0016]
(Ninth embodiment)
FIG. 9 shows a ninth embodiment of the present invention. FIG. 9 is a side sectional view showing details of the sample recovery unit of the liquid metal quenching apparatus. The configuration and reference numerals are the same as those in the eighth embodiment. The difference is that the inner diameter of the cylindrical portion directly above the gate valve 5 is made smaller than the inner diameter of the seal portion of the gate valve.
The metal ribbon that has moved through the sample introduction unit 8 passes through the opened gate valve 5 and flies to the sample recovery unit 2 to be accumulated. At this time, due to variations in the metal ribbon production conditions, the produced metal ribbon may not be able to fit in the sample collection unit 2 and may overflow from the gate valve 5. The ribbon is stored in the sample collection unit 2. Furthermore, since the inner diameter of the cylindrical part directly above the gate valve is narrower than the inner diameter of the seal part of the gate valve, the metal ribbon is very fragile, and even if debris tends to be generated when contracting due to evacuation from the exhaust port, the gate The sample can be collected without damaging the valve. The sample can be collected by removing the sample collection unit 5 from the flange 7 and inserting the sample collection unit 2 into an argon glove box (not shown).
According to this embodiment, the life of the gate valve is improved without adhering debris powder generated from the metal ribbon to the gate valve.
[0017]
(Example 10)
FIG. 10 shows a tenth embodiment of the present invention. FIG. 10 is a side sectional view showing details of the sample recovery unit of the liquid metal quenching apparatus. The configuration and reference numerals are the same as those in the first embodiment. The difference is that an exhaust port 6 is provided.
The metal ribbon that has moved through the sample introduction unit 8 passes through the opened shutter mechanism 3 and the gate valve 5, flies to the sample recovery unit 2, and is accumulated. At this time, due to variations in the metal ribbon production conditions, the produced metal ribbon may not be able to fit in the sample recovery unit 2 despite being evacuated from the exhaust port 6 and may overflow from the shutter mechanism unit 3. In this case, the shutter mechanism 3 is closed, and the metal ribbon is cut there. Therefore, when the gate valve is closed, the overflowing metal ribbon remains on the upper part of the closed shutter mechanism 3 and below the shutter mechanism 3. The metal ribbon fits in the sample collection unit.
[0018]
(Example 11)
An eleventh embodiment of the present invention is shown in FIG. FIG. 11 is a side sectional view showing the details of the sample recovery unit of the liquid metal quenching apparatus. The configuration and reference numerals are the same as those in the tenth embodiment. The difference is that the inner diameter of the cylindrical portion directly above the gate valve 5 is narrower than the inner diameter of the seal portion of the gate valve.
The metal ribbon that has moved through the sample introduction unit 8 passes through the opened shutter mechanism 3 and the gate valve 5, flies to the sample recovery unit 2, and is accumulated. At this time, due to variations in the metal ribbon production conditions, the produced metal ribbon may not be able to fit in the sample recovery unit 2 despite being evacuated from the exhaust port 6 and may overflow from the shutter mechanism unit 3. In this case, the shutter mechanism 3 is closed, and the metal ribbon is cut there. Therefore, when the gate valve 5 is closed, the overflowing metal ribbon remains on the upper part of the closed shutter mechanism 3 and below the shutter mechanism. The metal ribbon is accommodated in the sample recovery unit 2.
According to this embodiment, the inner diameter of the cylindrical portion directly above the gate valve is narrower than the inner diameter of the seal portion of the gate valve, so that even when the metal ribbon is fragile and debris tends to be generated, the sample is collected without damaging the gate valve. be able to.
[0019]
Example 12
A twelfth embodiment of the present invention is shown in FIG. FIG. 12 is a side sectional view showing details of the sample recovery unit of the liquid metal quenching apparatus. The configuration and reference numerals are the same as those in the eleventh embodiment. The difference is that an exhaust port 6 is provided between the shutter mechanism 3 and the gate valve 5.
The metal ribbon that has moved through the sample introduction section passes through the opened shutter mechanism 3 and is accumulated on the closed gate valve 5. At this time, due to variations in the metal ribbon production conditions, the produced metal ribbon is in a state of overflowing from the shutter mechanism portion 3 despite the evacuation from the exhaust port 6 provided between the shutter mechanism and the gate valve. In this case, the shutter mechanism 3 is closed and the metal ribbon is cut there. Therefore, the metal ribbon is accommodated in the sample collecting unit 2 by opening and closing the gate valve 5 again.
[0020]
(Thirteenth embodiment)
A thirteenth embodiment of the present invention is shown in FIG. FIG. 13 is a side sectional view showing details of the sample recovery unit of the liquid metal quenching apparatus. The configuration and reference numerals are the same as those in the twelfth embodiment. The difference is that the inner diameter of the cylindrical portion directly above the gate valve 5 is narrower than the inner diameter of the seal portion of the gate valve.
FIG. 13 is a schematic view showing the vicinity of a sample recovery part of a liquid metal quenching apparatus showing a thirteenth embodiment. The metal ribbon that has moved through the sample introduction unit 8 passes through the opened shutter mechanism 3 and is accumulated on the closed gate valve 5. At this time, due to variations in the metal ribbon production conditions, the produced metal ribbon overflows from the shutter mechanism portion 3 despite the evacuation from the exhaust port 6 provided between the shutter mechanism 3 and the gate valve 5. In this case, the shutter mechanism 3 is closed and the metal ribbon is cut there. Therefore, the metal ribbon is accommodated in the sample recovery unit 2 by opening and closing the gate valve 5 again.
According to this embodiment, the inner diameter of the cylindrical portion directly above the gate valve is narrower than the inner diameter of the seal portion of the gate valve, so that even when the metal ribbon is fragile and debris tends to be generated, the sample is collected without damaging the gate valve. be able to.
[0021]
(Fourteenth embodiment)
A fourteenth embodiment of the present invention is shown in FIG. FIG. 14 is a side sectional view showing details of the sample recovery unit of the liquid metal quenching apparatus. The configuration and reference numerals are the same as those in the seventh embodiment. The difference is that an exhaust port 6 is provided between the shutter mechanism 3 and the gate valve 5.
The metal ribbon that has moved through the sample introduction section passes through the opened shutter mechanism 3 and is accumulated in the sample collection container 4 having a height L placed on the closed gate valve 5. At this time, due to variations in the metal ribbon production conditions, the produced metal ribbon may not be able to fit in the sample recovery unit 2 and may overflow from the shutter mechanism unit 3. In this case, the shutter mechanism 3 is closed, Therefore, the metal ribbon is cut, and by closing the gate valve 5, the overflowing metal ribbon is accumulated in the sample collection container 4 installed on the closed gate valve. Thereafter, the sample collection container 4 is stored in the sample collection unit by opening the gate valve 5. Therefore, for example, only the sample collection container needs to be taken out when collecting the sample in the glove box.
According to this embodiment, not only the workability is improved, but the metal powder derived from the metal ribbon does not adhere to the gate valve, and the life of the gate valve is improved. If the sample collection container has a handle, workability is further improved.
In the above embodiment, the single roll method has been described as an example. However, even in the case of the twin roll method, the sample collecting portion can be installed at a site where the metal ribbon is accumulated.
[0022]
【The invention's effect】
As described above, since the liquid metal quenching apparatus of the present invention is provided with a shutter mechanism or an exhaust port on the rotary cooling body side of the gate valve of the sample recovery unit, the active metal strip is recovered without being oxidized, Can be delivered to the next process.
[Brief description of the drawings]
FIG. 1 is a side sectional view of a sample recovery section showing a first embodiment of the present invention.
FIG. 2 is a side cross-sectional view of a sample recovery section showing a second embodiment of the present invention.
FIG. 3 is a side cross-sectional view of a sample recovery section showing a third embodiment of the present invention.
FIG. 4 is a side sectional view of a sample recovery section showing a fourth embodiment of the present invention.
FIG. 5 is a side sectional view of a sample recovery section showing a fifth embodiment of the present invention.
FIG. 6 is a side sectional view of a sample recovery section showing a sixth embodiment of the present invention.
FIG. 7 is a side sectional view of a sample recovery section showing a seventh embodiment of the present invention.
FIG. 8 is a side sectional view of a sample recovery section showing an eighth embodiment of the present invention.
FIG. 9 is a side sectional view of a sample recovery section showing a ninth embodiment of the present invention.
FIG. 10 is a side sectional view of a sample recovery section showing a tenth embodiment of the present invention.
FIG. 11 is a side sectional view of a sample recovery portion showing an eleventh embodiment of the present invention.
FIG. 12 is a side sectional view of a sample recovery section showing a twelfth embodiment of the present invention.
FIG. 13 is a side sectional view of a sample recovery section showing a thirteenth embodiment of the present invention.
FIG. 14 is a side sectional view of a sample recovery section showing a fourteenth embodiment of the present invention.
FIG. 15 is a side sectional view showing the overall configuration of the liquid metal quenching apparatus.
FIG. 16 is a side sectional view showing a sample recovery part of a conventional liquid metal quenching apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Liquid metal quenching device 2 Sample collection part 3 Shutter mechanism 3a 1st shutter mechanism 3b 2nd shutter mechanism 4 Sample collection container 5 Gate valve 6 Exhaust port 6a Exhaust port valve 7 Flange 8 Sample introduction part 9 Chamber 10 Rotation cooling Body 11 High-frequency coil 12 Nozzle container 13 Nozzle lifting mechanism 14 Pressurized gas introduction pipe 14a Valve 15 for injection gas Leak adjustment valve

Claims (3)

A chamber having a leak adjustment valve connected to an exhaust device and introducing an inert gas; a rotary cooling body provided in the chamber that rotates at high speed; and a nozzle container that melts and stores a raw metal and injects the raw metal into the rotary cooling body; A liquid metal quenching apparatus comprising: a high-frequency coil for heating the nozzle container; and a sample recovery unit for recovering a thin metal ribbon comprising a flange and a gate valve and rapidly cooled and solidified by the rotary cooling body while maintaining the atmosphere. In
A liquid metal quenching apparatus comprising a shutter mechanism for cutting the metal ribbon on the rotary cooling body side of the gate valve . A chamber having a leak adjustment valve connected to an exhaust device and introducing an inert gas; a rotary cooling body provided in the chamber that rotates at high speed; and a nozzle container that melts and stores a raw metal and injects the raw metal into the rotary cooling body; Sample recovery for recovering a thin metal strip rapidly cooled and solidified by the rotary cooling body having a high-frequency coil for heating the nozzle container, a flange and a gate valve, and having an exhaust port having a valve , while maintaining the atmosphere In a liquid metal quenching device comprising a part,
A liquid metal quenching apparatus comprising a shutter mechanism for cutting the metal ribbon on the rotary cooling body side of the gate valve . 3. The liquid metal quenching according to claim 1 , further comprising a second shutter mechanism that is disposed at a predetermined interval between the shutter mechanism and the gate valve and accumulates the metal ribbon. apparatus.

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