JPS6352752A - Rapidly cooling apparatus for liquid - Google Patents
Rapidly cooling apparatus for liquidInfo
- Publication number
- JPS6352752A JPS6352752A JP19608986A JP19608986A JPS6352752A JP S6352752 A JPS6352752 A JP S6352752A JP 19608986 A JP19608986 A JP 19608986A JP 19608986 A JP19608986 A JP 19608986A JP S6352752 A JPS6352752 A JP S6352752A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- injecting hole
- induction heating
- melting point
- molten material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 11
- 239000007788 liquid Substances 0.000 title claims description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 230000006698 induction Effects 0.000 claims abstract description 10
- 238000010791 quenching Methods 0.000 claims description 15
- 230000000171 quenching effect Effects 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000002844 melting Methods 0.000 abstract description 17
- 230000008018 melting Effects 0.000 abstract description 16
- 239000000463 material Substances 0.000 abstract description 6
- 238000007711 solidification Methods 0.000 abstract description 4
- 230000008023 solidification Effects 0.000 abstract description 4
- 239000012768 molten material Substances 0.000 abstract 4
- 239000010409 thin film Substances 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 239000010453 quartz Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、物質を溶解し、それを高速で回転するロール
の表面に噴射することによって、前記物質を高冷却速度
で冷却凝固する液体急冷装置に関するものである。Detailed Description of the Invention [Industrial Application Field] The present invention relates to a liquid quenching method in which a substance is melted and the substance is cooled and solidified at a high cooling rate by injecting it onto the surface of a roll rotating at high speed. It is related to the device.
従来、液体急冷装置は、合金の急冷薄帯を得るために開
発されてきており、そのような装置によって得られる急
冷合金は、通常の凝固法によっては得られないようなア
モルファス状態とが非平衡相状態とかの特異な状態を有
しており、近年多くの注目を集めるようになっている。Conventionally, liquid quenching equipment has been developed to obtain quenched ribbons of alloys. It has a unique phase state, and has been attracting a lot of attention in recent years.
しかしながら従来の液体急冷装置は、鉄系合金等の比較
的融点の低い物質用に作られているものが多く、石英製
のノズルを抵抗加熱もしくは高周波加熱によって加熱す
るという方式のものがほとんどである。従って、最高使
用温度は石英の耐火度によって制限され、１．２００−
１３００℃程度が限度である。また温度が高くなると石
英と反応することによる試料の汚染も起こりうる。たと
えノズルの材質を石英から他のセラミックス等に変えた
としても、耐熱性、反応性等を考えるとせいぜい２００
０℃程度が限界である。However, conventional liquid quenching equipment is often made for materials with relatively low melting points, such as iron-based alloys, and most of them use a method in which quartz nozzles are heated by resistance heating or high-frequency heating. . Therefore, the maximum operating temperature is limited by the refractory rating of quartz, which is 1.200-
The upper limit is about 1300°C. In addition, when the temperature increases, sample contamination may occur due to reaction with quartz. Even if the material of the nozzle is changed from quartz to another ceramic, etc., considering heat resistance, reactivity, etc.
The limit is around 0°C.
本発明者らは−に記の問題点を解決し、融点２０００°
Ｃ以」二の高融点物質であっても使用可能な液体急冷装
置をすでに提案した（特願昭５８−２２０９５９号）。The present inventors have solved the problems described in -, and the melting point is 200°
We have already proposed a liquid quenching device that can be used even for materials with a high melting point of C or higher (Japanese Patent Application No. 58-220959).
それは、物質を溶解し噴射するノズル部分が水冷された
金属製であり、プラズマ溶解装置などによリ溶解された
ノズル内の溶融金属をノズル内外の圧力差によって冷却
ロール上へ噴出せしめることを特徴とする液体急冷装置
である。この装置を用いるならば、ノズルの中で融点２
０００℃以」−の高融点物質を溶解してもノズル金属が
十分に水冷されていれば、ノズル金属の温度が低すぎる
ために、ノズル金属と溶融物質との反応はほとんど起こ
らない。従って、この装置によって、高融点物質の液体
急冷が基本的には可能である。The nozzle part that melts and sprays the substance is made of water-cooled metal, and the molten metal inside the nozzle that has been melted by a plasma melting device is sprayed onto the cooling roll by the pressure difference between the inside and outside of the nozzle. This is a liquid quenching device. If this device is used, the melting point is 2 in the nozzle.
Even if a substance with a high melting point of 000° C. or higher is melted, if the nozzle metal is sufficiently water-cooled, the temperature of the nozzle metal is too low, so that almost no reaction between the nozzle metal and the molten substance will occur. This device therefore basically allows liquid quenching of high-melting substances.
しかしながら、上記の液体急冷装置においても、２００
０℃以上の高温度で溶融している試料が小さなノズル孔
を通過するのであるから、その間に凝固が進行し、ノズ
ルの噴出口付近に厚い凝固層を形成してしまうことがあ
る。その場合にはそれ以」二の噴射が不可能になってし
まい、試料の一部分しか液体急冷することができなくな
る。However, even in the above-mentioned liquid quenching device, 200
Since a sample melted at a high temperature of 0° C. or higher passes through a small nozzle hole, solidification progresses during this time, and a thick solidified layer may be formed near the nozzle outlet. In that case, no further injection is possible, and only a portion of the sample can be quenched with liquid.
本発明は、」二記の問題点を解決し、融点２０００”Ｃ
以上の高融点物質を有効に液体急冷しうる液体急冷装置
を提供することを目的とする。The present invention solves the problems mentioned in "2" and has a melting point of 2000"C.
It is an object of the present invention to provide a liquid quenching device that can effectively quench the above high melting point substances.
Ｃ問題点を解決するための手段〕
本発明は水冷可能な金属製ノズル部が取付けられた壁を
介して上下にそれぞれ雰囲気を制御可能な真空チャンバ
ーが設置され、さらに上チャンバーには物質溶解装置が
設置され、下チャンバーには冷却用ロールが設置されて
いる液体急冷装置において、該金属製ノズルの直下に誘
導加熱用コイルを設置したことを特徴とする液体急冷装
置である。Means for Solving Problem C] In the present invention, vacuum chambers are installed on the upper and lower sides of the wall to which a water-coolable metal nozzle part is attached, and the atmosphere can be controlled respectively, and a substance dissolving device is installed in the upper chamber. This liquid quenching apparatus is characterized in that an induction heating coil is installed directly under the metal nozzle in the liquid quenching apparatus, in which a cooling roll is installed in the lower chamber.
本発明による液体急冷装置は、ノズルの直下に誘導加熱
用コイルが設置されているので、試料がノズルの噴出口
付近で凝固したとしてもただちに溶解することができる
。従って、この誘導加熱用コイルに高周波電流を流しな
がら噴射すれば、試料がノズルの噴出口付近で凝固する
ことなく有効に噴出することが可能である。In the liquid quenching device according to the present invention, since the induction heating coil is installed directly under the nozzle, even if the sample solidifies near the nozzle spout, it can be immediately dissolved. Therefore, by injecting the sample while flowing a high-frequency current through the induction heating coil, it is possible to effectively eject the sample without solidifying it near the ejection port of the nozzle.
以下、本発明の一実施例を第１−図により説明する。 Hereinafter, one embodiment of the present invention will be described with reference to FIG.
図において、１は水冷される金属製のノズル、２は試料
、３は急冷用ロール、４は誘導加熱用コイルである。試
料２はノズル１の中でプラズマ溶解等によって溶解され
た後、ノズルの」１下に作られる圧力差によって、高速
に回転しているロール３の表面」二に噴射されて急冷薄
帯５となる。この際、コイル４に高周波電流を流してお
けば、ノズル１の噴出口付近における試料の凝固を防ぐ
ことができる。In the figure, 1 is a water-cooled metal nozzle, 2 is a sample, 3 is a rapid cooling roll, and 4 is an induction heating coil. After the sample 2 is melted in the nozzle 1 by plasma melting or the like, it is jetted onto the surface of the roll 3 which is rotating at high speed due to the pressure difference created under the nozzle 1, and becomes a quenched ribbon 5. Become. At this time, if a high frequency current is passed through the coil 4, solidification of the sample near the spout of the nozzle 1 can be prevented.
次に、第１図の装置を用いた液体急冷の例について述べ
る。ノズル１としては銅製のものを用い、ノズル穴の形
状は直径１ 、５ｍｍ 、長さ２ｍｍとした。試料２と
しては、あらがしめアーク溶解によって作製したＮｂ７
．．５ｊ２５合金のインゴットを用いた。この合金の融
点は約２１３０℃である。この試料をノズル１の中に入
れ、アルゴンプラズマトーチを用いて溶解し、約０．５
気圧の圧力差によってノズル穴から高速で回転している
ロール３の表面−ヒに噴射した。この際、誘導加熱用コ
イル４にはあらがじめ１００ＫＨｚ 、 ２００Ａの高
周波電流を流しておいた。その＝４−
結果、試料はほとんどすべて、ノズル穴から噴出して急
冷薄帯となった。Next, an example of liquid quenching using the apparatus shown in FIG. 1 will be described. The nozzle 1 was made of copper, and the nozzle hole had a diameter of 1.5 mm and a length of 2 mm. As sample 2, Nb7 was prepared by rough arc melting.
．． ．． An ingot of 5j25 alloy was used. The melting point of this alloy is approximately 2130°C. This sample was placed in nozzle 1 and melted using an argon plasma torch to approximately 0.5
Due to the difference in atmospheric pressure, it was sprayed from the nozzle hole onto the surface of the roll 3 which was rotating at high speed. At this time, a high frequency current of 100 KHz and 200 A was passed through the induction heating coil 4 in advance. As a result, almost all of the samples were ejected from the nozzle hole and turned into quenched ribbons.
比較例として、実施例に記述した実験と同じ要領で誘導
加熱用コイル４に電流を流さない状態で実験を行った。As a comparative example, an experiment was conducted in the same manner as the experiment described in the example, without applying current to the induction heating coil 4.
その結果、ノズル１から噴射された試料は元の重量の約
４０％であり、残部はノズル１の中で凝固していた。As a result, the sample injected from nozzle 1 was about 40% of its original weight, and the remainder had solidified inside nozzle 1.
以上説明したように本発明による液体急冷装置は融点２
０００℃以上の高融点物質を有効に液体急冷することが
でき、その効果はきわめて大きい。As explained above, the liquid quenching device according to the present invention has a melting point of 2.
High melting point substances of 000°C or higher can be effectively liquid quenched, and the effect is extremely large.
【図面の簡単な説明】
第１図は本発明の一実施例を示す図である。
１・・・水冷された金属製のノズル ２・・・試料３・
・・急冷用ロール ４・・・誘導加熱用コイル５・
・・急冷薄帯BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing an embodiment of the present invention. 1... Water-cooled metal nozzle 2... Sample 3.
... Roll for rapid cooling 4 ... Coil for induction heating 5.
...quenched ribbon
Claims (1)
して上下にそれぞれ雰囲気を制御可能な真空チャンバー
が設置され、さらに上チャンバーには物質溶解装置が設
置され、下チャンバーには冷却用ロールが設置されてい
る液体急冷装置において、該金属製ノズルの直下に誘導
加熱用コイルを設置したことを特徴とする液体急冷装置
。(1) Vacuum chambers that can control the atmosphere are installed on the upper and lower sides through walls equipped with metal nozzles that can be cooled with water, and a substance dissolving device is installed in the upper chamber, and a cooling chamber is installed in the lower chamber. A liquid quenching device in which a roll is installed, characterized in that an induction heating coil is installed directly below the metal nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19608986A JPS6352752A (en) | 1986-08-20 | 1986-08-20 | Rapidly cooling apparatus for liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19608986A JPS6352752A (en) | 1986-08-20 | 1986-08-20 | Rapidly cooling apparatus for liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6352752A true JPS6352752A (en) | 1988-03-05 |
Family
ID=16352026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19608986A Pending JPS6352752A (en) | 1986-08-20 | 1986-08-20 | Rapidly cooling apparatus for liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6352752A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02215352A (en) * | 1989-02-16 | 1990-08-28 | Advance Co Ltd | Auxiliary material for cooking |
-
1986
- 1986-08-20 JP JP19608986A patent/JPS6352752A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02215352A (en) * | 1989-02-16 | 1990-08-28 | Advance Co Ltd | Auxiliary material for cooking |
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