JPH07241651A - Production of rapidly solidified strip - Google Patents

Production of rapidly solidified strip

Info

Publication number
JPH07241651A
JPH07241651A JP3576294A JP3576294A JPH07241651A JP H07241651 A JPH07241651 A JP H07241651A JP 3576294 A JP3576294 A JP 3576294A JP 3576294 A JP3576294 A JP 3576294A JP H07241651 A JPH07241651 A JP H07241651A
Authority
JP
Japan
Prior art keywords
ribbon
nozzle
base plate
cooling substrate
distance
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
Application number
JP3576294A
Other languages
Japanese (ja)
Inventor
Yuichi Sato
藤 有 一 佐
Michio Endo
藤 道 雄 遠
Masakata Imagunbai
正 名 今葷倍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP3576294A priority Critical patent/JPH07241651A/en
Publication of JPH07241651A publication Critical patent/JPH07241651A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To produce an Al alloy strip having high accuracy of thickness by specifying a distance between a nozzle for spouting molten metal and a cooling base plate, at the time of producing the Al alloy strip by a rapid solidifying method. CONSTITUTION:In the method obtaining the metallic strip 6 by spouting the molten metal 3 on the cooling base plate from a gap between a first lip 1 and a second lip 2, i.e., the nozzle opening hole, the distance between the nozzle for spouting the molten metal and the cooling base plate are made to be 1.5-5mm in the front part and 0.02-0.5mm in the rear part in the shifting direction of the cooling base plate to spout the molten metal on the shifting base plate. The front part in the shifting direction of this cooling base plate designates the distance (d2) between the second lip 2 and the cooling base plate 5. On the other hand, the rear part in the shifting direction of the cooling base plate designates the distance (d1) between the first lip 1 and the cooling base plate 5. By this method, grooving defect and defect of hole, etc., developed in the conventional method are prevented and the Al alloy strip having high accuracy of the thickness can be produced.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、金属・合金(以下、
「金属」という)の溶融試料を移動する冷却基板の表面
で急冷凝固させ、連続的に薄帯を製造する方法に関する
ものである。
BACKGROUND OF THE INVENTION The present invention relates to metals and alloys (hereinafter,
The present invention relates to a method for continuously producing a ribbon by rapidly solidifying a molten sample of "metal" on the surface of a moving cooling substrate.

【0002】[0002]

【従来の技術】溶融金属から連続的に薄帯を製造する方
法、すなわち連続液体急冷法は、従来より種々の手段が
開示されているが、いずれも溶解した金属を所定の形状
の開口を有するノズルから、所定の圧力でノズル開口に
面した移動冷却基板の上に噴出し、凝固させて連続薄帯
とするものである。このとき重要な製造因子は、ノズル
と冷却基板の距離、ノズル開口の形状、溶融金属のノズ
ルからの噴出圧、冷却基板の移動速度などである。
2. Description of the Related Art A method for continuously producing a ribbon from a molten metal, that is, a continuous liquid quenching method has been disclosed in the past, but all have a molten metal having an opening of a predetermined shape. It is jetted from a nozzle with a predetermined pressure onto a moving cooling substrate facing the nozzle opening and solidified to form a continuous ribbon. At this time, important manufacturing factors are the distance between the nozzle and the cooling substrate, the shape of the nozzle opening, the ejection pressure of the molten metal from the nozzle, the moving speed of the cooling substrate, and the like.

【0003】金属薄帯を製造する方法として従来開示さ
れている代表的なものとして、例えば特開昭53−53
525号公報に記載の「金属ストリップの連続的鋳造法
およびそれに使用する装置」がある。この方法の概要
は、矩形状の開口を持つスロットノズルを冷却基板に対
して0.03〜1mmの間隔で対向させ、この矩形状の
開口は冷却基板の表面の移動方向に対してほぼ垂直に配
置された状態で、100〜2000m/分の予め定めら
れた表面速度で移動する冷却基板上に、スロットノズル
から溶融金属を送り出し、熱的に接触させて急冷凝固す
ることにより連続的なストリップを製造するものであ
る。
As a typical method conventionally disclosed as a method for producing a metal ribbon, for example, Japanese Patent Laid-Open No. 53-53.
There is a "continuous casting method for metal strips and apparatus used therefor" described in Japanese Patent No. 525,525. The outline of this method is that slot nozzles having a rectangular opening are opposed to the cooling substrate at an interval of 0.03 to 1 mm, and the rectangular opening is substantially perpendicular to the moving direction of the surface of the cooling substrate. In the arranged state, a molten metal is sent out from a slot nozzle onto a cooling substrate that moves at a predetermined surface velocity of 100 to 2000 m / min, and is thermally contacted to be rapidly solidified to form a continuous strip. It is manufactured.

【0004】前記公報には、良好な薄帯を得るためにノ
ズルと冷却基板の間にパドルと呼ばれる湯溜りを形成さ
せ、このパドルの形状を一定に保つことが重要であり、
そのためにはノズルの冷却基板移動方向後方側(以下、
「第1リップ」という)および冷却基板移動方向前方側
(以下、「第2リップ」という)でノズルと冷却基板の
距離を一定にすること、さらには、0.03〜1mmの
範囲であれば両者が異なってもよいことが述べられてい
る。また、前記公報の図4には、第2リップと冷却基板
との距離が第1リップと冷却基板との距離に比べて大き
くなっているものが開示されている。
In the above publication, in order to obtain a good ribbon, it is important to form a pool called a paddle between the nozzle and the cooling substrate and keep the shape of the paddle constant.
To that end, the nozzle is located on the rear side of the cooling substrate moving direction (hereinafter,
"First lip") and the front side in the moving direction of the cooling substrate (hereinafter, referred to as "second lip") to keep the distance between the nozzle and the cooling substrate constant, and further, in the range of 0.03 to 1 mm. It is stated that both may be different. Further, FIG. 4 of the publication discloses that the distance between the second lip and the cooling substrate is larger than the distance between the first lip and the cooling substrate.

【0005】本発明者らは、Al−TiやAl−Zrな
どのAl合金の急冷凝固薄帯を得るためにこの方法を応
用して実験を行ったが、Al合金の場合このような方法
では良好な薄帯を得ることは困難であり、特に薄帯の自
由表面で非常に起伏の程度の大きな薄帯しか得られなか
った。このような薄帯は、例えば電解コンデンサ等の巻
加工や積層して用いる際に占積率等の点で問題となる。
The present inventors have conducted an experiment by applying this method in order to obtain a rapidly solidified ribbon of an Al alloy such as Al-Ti or Al-Zr. It was difficult to obtain a good ribbon, and only a ribbon having a very large undulation on the free surface of the ribbon was obtained. Such a ribbon becomes a problem in terms of space factor when used for winding or laminating an electrolytic capacitor or the like.

【0006】本発明者らは、上記した急冷凝固薄帯の表
面性状の従来の問題を取り除くために、例えば、特開昭
62−183944号公報において新しい鋳造方法を提
案した。すなわち、この方法は、ノズル底部に溶融試料
の移動を可能とする導路を設けたノズルを用いる方法で
あって、ノズルと冷却基板との間にパドルと呼ばれる湯
溜を形成させて薄帯とする従来の方法、すなわち、前記
特開昭53−53525号公報に記載の方法に対して、
パドルの形成が困難と考えられたAl合金のために開発
された方法である。
The present inventors proposed a new casting method in, for example, Japanese Patent Laid-Open No. 183944/1987 in order to eliminate the above-mentioned conventional problem of the surface property of the rapidly solidified ribbon. That is, this method is a method of using a nozzle in which a conduit for moving a molten sample is provided at the bottom of the nozzle, and a hot water pool called a paddle is formed between the nozzle and the cooling substrate to form a ribbon. In contrast to the conventional method described above, that is, the method described in JP-A-53-53525,
This is a method developed for Al alloys that are considered difficult to form paddles.

【0007】上記鋳造方法についてさらに具体的に述べ
ると、用いるノズルとして第2リップ側底部に、深さが
スロット側で0.6mm、先端側で0.15mmと先端
側を狭くした導路を設けたノズルを用いて急冷凝固薄帯
を得る方法である。この方法により、得られる薄帯の板
厚精度はかなり向上し、つまり薄帯の自由表面性状をか
なり改善することが可能となった。
More specifically, the casting method will be described in detail. As a nozzle to be used, a guide passage having a narrower tip side with a depth of 0.6 mm on the slot side and 0.15 mm on the tip side is provided at the bottom of the second lip side. It is a method of obtaining a rapidly solidified ribbon by using a nozzle. By this method, the plate thickness accuracy of the obtained ribbon can be considerably improved, that is, the free surface texture of the ribbon can be considerably improved.

【0008】[0008]

【発明が解決しようとする課題】しかしながら、前記特
開昭62−183944号公報の方法を用いて、Al−
TiやAl−ZrなどのAl合金の薄帯を製造するに
は、以下の点をさらに改善する必要があった。すなわ
ち、薄帯の自由表面に筋状の欠陥が生じたり、さらに薄
帯の一部で極端に板厚が薄くなって透けが生じることが
あった。これらの欠陥は、例えば電解コンデンサ等のよ
うに巻加工や積層して用いる際に占積率を劣化するばか
りでなく、加工途中で薄帯が切れるなどのトラブルを引
き起こすと考えられる。本発明は、上記の欠陥の発生を
抑制し、良好なAl合金薄帯を製造する方法を提供する
ことを目的とするものである。
However, using the method of the above-mentioned JP-A-62-183944, Al-
In order to produce a ribbon of Al alloy such as Ti or Al-Zr, it was necessary to further improve the following points. That is, streak-like defects may occur on the free surface of the ribbon, or even a part of the ribbon may become extremely thin and show through. It is considered that these defects not only deteriorate the space factor when used for winding or laminating, such as an electrolytic capacitor, but also cause troubles such as a thin strip being cut during processing. An object of the present invention is to provide a method for suppressing the occurrence of the above defects and producing a good Al alloy ribbon.

【0009】[0009]

【課題を解決するための手段】本発明は、溶融金属を移
動する冷却基板上にノズルを介して噴出させて金属薄帯
を得る方法において、溶融試料噴出のためのノズルと冷
却基板の距離を、冷却基板移動方向前方では1.5mm
〜5mmとし、後方では0.02mm〜0.5mmとし
て移動冷却基板上に溶融試料を噴出することを特徴とす
る急冷凝固薄帯の製造方法である。
SUMMARY OF THE INVENTION The present invention is a method for obtaining a thin metal strip by jetting molten metal through a nozzle onto a moving cooling substrate, in which the distance between the nozzle for jetting a molten sample and the cooling substrate is set. , 1.5 mm in front of the moving direction of the cooling substrate
The method for producing a rapidly solidified ribbon is characterized in that the molten sample is jetted onto a moving cooling substrate with a thickness of ˜5 mm and 0.02 mm to 0.5 mm in the rear.

【0010】以下に、本発明を詳細に説明する。まず、
本発明の方法を、図1を用いて説明する。図1におい
て、1および2は、それぞれノズルの第1リップおよび
第2リップであり、両者のリップ間、すなわちノズル開
口、から溶融試料3を冷却基板5上に噴出させて、薄帯
6を得る。ノズルと冷却基板の距離に関して、本発明に
おいて冷却基板移動方向前方とは、第2リップと冷却基
板5との距離、すなわち、図1中のdである。一方、
冷却基板移動方向後方とは、第1リップと冷却基板との
距離、すなわち、図1中のdである。
The present invention will be described in detail below. First,
The method of the present invention will be described with reference to FIG. In FIG. 1, 1 and 2 are the first lip and the second lip of the nozzle, respectively, and the molten sample 3 is jetted onto the cooling substrate 5 from between the lips, that is, the nozzle opening, to obtain the ribbon 6. . Regarding the distance between the nozzle and the cooling substrate, the front side in the moving direction of the cooling substrate in the present invention is the distance between the second lip and the cooling substrate 5, that is, d 2 in FIG. 1. on the other hand,
The rear side in the moving direction of the cooling substrate is the distance between the first lip and the cooling substrate, that is, d 1 in FIG. 1 .

【0011】図2に、dをそれぞれ0.3mm、0.
5mm、0.7mmとした場合のdと、得られた薄帯
の板厚精度の関係について示す。薄帯の板厚精度は、薄
帯の重量、板幅、長さおよび密度から計算した板厚(以
下、「計算板厚」という。薄帯の平均板厚を示す)とマ
イクロメーターを用いて測定した板厚(以下、「測定板
厚」という。薄帯の最大板厚を示す)の比を用いて示し
ているが、この値が大きいほど欠陥の少ないこと、即ち
性状が良好な薄帯であることを示している。
In FIG. 2, d 1 is 0.3 mm and 0.
The relationship between d 2 when the thickness is 5 mm and 0.7 mm and the plate thickness accuracy of the obtained ribbon is shown. The strip thickness accuracy of the strip is calculated using the strip weight, strip width, length and density (hereinafter referred to as "calculated strip thickness", which indicates the average strip thickness) and a micrometer. It is shown by using the ratio of the measured plate thickness (hereinafter, referred to as “measured plate thickness”, which indicates the maximum plate thickness of the ribbon). Is shown.

【0012】ノズルと冷却基板の距離を限定した理由に
ついて図2を用いて説明する。dを0.3mmとした
場合、dが1.5mm未満では薄帯の計算板厚/測定
板厚(板厚比)は90%未満と低く、薄帯の板厚精度は
悪くなる。これは薄帯の自由表面に筋状の欠陥が発生す
ることや、薄帯の一部で透けが生じることによる。これ
に対して、dを1.5mm以上とすると板厚比は90
%以上となり、良好な薄帯が得られる。しかしながら、
が5mmを超えると、薄帯の性状は悪化し、板厚比
は90%未満となる。
The reason why the distance between the nozzle and the cooling substrate is limited will be described with reference to FIG. When d 1 is 0.3 mm, when d 2 is less than 1.5 mm, the calculated thickness / measured thickness (thickness ratio) of the ribbon is as low as less than 90%, and the accuracy of the thickness of the ribbon deteriorates. This is because streak-like defects occur on the free surface of the ribbon, and a part of the ribbon is transparent. On the other hand, when d 2 is 1.5 mm or more, the plate thickness ratio is 90
% Or more, and a good ribbon can be obtained. However,
When d 2 exceeds 5 mm, the properties of the ribbon are deteriorated and the plate thickness ratio becomes less than 90%.

【0013】dと板厚比の関係は、dが0.5mm
まではdを0.3mmとした場合と同じようにd
1.5mm〜5mmの範囲で良好な薄帯が得られる。し
かし、dが0.7mmとなると、もはやdを1.5
mm〜5mmとしても良好な薄帯の製造は困難となる。
つまり、薄帯の自由表面に筋状の欠陥が発生するように
なったり、局部的に薄帯が透けたりして良好な薄帯は得
られなくなる。
The relationship between d 2 and the plate thickness ratio is that d 1 is 0.5 mm
In the same manner as in the case where d 1 is 0.3 mm, a good ribbon can be obtained when d 2 is in the range of 1.5 mm to 5 mm. However, when d 1 becomes 0.7 mm, d 2 is no longer 1.5.
Even if the thickness is 5 mm to 5 mm, it becomes difficult to manufacture a good ribbon.
That is, streak-like defects are generated on the free surface of the ribbon, or the ribbon is partially transparent, so that a good ribbon cannot be obtained.

【0014】以上説明したように、良好な薄帯を得るた
めにはdを1.5mm〜5mm、好ましくは1.5m
m〜3mmとし、dを0.5mm以下とすればよい。
本発明において、dは、ノズルがロール表面に衝突し
ないようにするために便宜上0.02mm以上とした。
As explained above, in order to obtain a good ribbon, d 2 is 1.5 mm to 5 mm, preferably 1.5 m.
It may be set to m to 3 mm, and d 1 may be set to 0.5 mm or less.
In the present invention, d 1 is set to 0.02 mm or more for convenience so that the nozzle does not collide with the roll surface.

【0015】得られる薄帯の性状がノズルと冷却基板の
距離に依存し、dとdを上記の範囲にすると良好な
薄帯が得られる理由については以下のように考えられ
る。図4に特開昭53−53525号公報に述べられて
いる薄帯形成の様子を模式的に示すが、冷却基板上で薄
帯が得られる際、ノズルと冷却基板との間にはパドル9
が形成される。良好な薄帯を得るためにはこのパドルの
形状を、鋳造中一定に保つことが重要であることは先に
述べた通りである。
The reason why the property of the obtained ribbon depends on the distance between the nozzle and the cooling substrate, and the reason that a good ribbon can be obtained by setting d 1 and d 2 in the above range is considered as follows. FIG. 4 schematically shows a state of forming a ribbon described in JP-A-53-53525. When a ribbon is obtained on a cooling substrate, a paddle 9 is provided between the nozzle and the cooling substrate.
Is formed. As described above, it is important to keep the shape of the paddle constant during casting in order to obtain a good ribbon.

【0016】FeやCoなどを主成分とする合金の場
合、前記特開昭53−53525号公報の方法、すなわ
ちノズルと冷却基板の距離を0.03〜1mmとする方
法、により図4に示すように、パドル9を形成させ、そ
の形状を鋳造中一定に保つことが可能となるが、Al合
金の場合はこのような方法ではパドルの形成、さらには
その形状を一定に保つことが困難であると考えられる。
In the case of an alloy containing Fe or Co as a main component, it is shown in FIG. 4 by the method of the above-mentioned Japanese Patent Laid-Open No. 53-53525, that is, the method of setting the distance between the nozzle and the cooling substrate to 0.03 to 1 mm. As described above, it becomes possible to form the paddle 9 and keep its shape constant during casting. However, in the case of Al alloy, it is difficult to form the paddle and further keep its shape constant by such a method. It is believed that there is.

【0017】一方、図3に前記特開昭62−18394
4号公報でAl合金用に提案した鋳造方法の模式図を示
すが、この方法は第2リップ2の底部に導路7,8を設
けることによって、パドルを形成させずにノズルと冷却
基板間を強制的に溶融試料3で埋めて薄帯6を得る方法
である。Al合金の場合、この方法により図4に示す方
法の場合に比べてより良好な薄帯が得られることを見い
出したことによる。
On the other hand, FIG. 3 shows the above-mentioned Japanese Patent Laid-Open No. 62-18394.
A schematic diagram of a casting method proposed for an Al alloy in Japanese Patent Publication No. 4 is shown. In this method, by providing conduits 7 and 8 at the bottom of the second lip 2, a paddle is not formed and a nozzle and a cooling substrate are not formed. Is forcibly filled with the molten sample 3 to obtain the thin strip 6. This is due to the fact that in the case of an Al alloy, a better ribbon can be obtained by this method as compared with the method shown in FIG.

【0018】これらの従来法に対して、本発明ではノズ
ルと冷却基板の距離を前述の範囲とすれば、Al合金の
場合でも図1に示すようにパドル4の形成が可能とな
り、しかもそのパドルの形状を鋳造中一定に保つことが
可能となって良好な薄帯の製造が出来るものと考えられ
る。このことは、ノズルと冷却基板の距離を1mm以上
とするとパドルの形成は不可能となり、5mm以上の板
幅の薄帯の製造は困難となると考えられていた従来の常
識を超えるものである。
In contrast to these conventional methods, in the present invention, if the distance between the nozzle and the cooling substrate is within the above range, the paddle 4 can be formed as shown in FIG. It is considered that the shape can be kept constant during casting and good ribbon can be manufactured. This exceeds the conventional wisdom that was considered to be impossible to form a paddle when the distance between the nozzle and the cooling substrate was 1 mm or more, making it difficult to manufacture a ribbon having a plate width of 5 mm or more.

【0019】本発明により、これまで発生していた薄帯
自由表面での筋状欠陥や透けなどの欠陥をなくすことが
可能となったことから、良好なAl合金薄帯を製造出来
るようになった。
According to the present invention, it becomes possible to eliminate defects such as streak-like defects and blemishes on the free surface of the ribbon, which have been generated so far, so that a good Al alloy ribbon can be manufactured. It was

【0020】本発明の方法に用いられるノズル開口形状
は、1個の矩形孔を用いることが好ましいが、ここでは
用いるノズルの開口形状を特に限定しない。また、本発
明の方法において採用される基本的な製造装置は、前述
したように、溶融金属をノズルを介して冷却基板の上に
噴出し、熱的接触によって急冷凝固させる、液体急冷装
置のうち、いわゆる単ロール装置である。勿論、ドラム
の内壁を使う遠心急冷装置やエンドレスタイプのベルト
を使う装置やこれらの改良型、例えば補助ロールやロー
ル表面温度制御装置を付属させたもの、あるいは減圧下
ないし真空中または不活性ガス中での鋳造も含まれる。
The nozzle opening shape used in the method of the present invention is preferably one rectangular hole, but the nozzle opening shape used here is not particularly limited. In addition, as described above, the basic manufacturing apparatus adopted in the method of the present invention is a liquid quenching apparatus that jets molten metal onto a cooling substrate through a nozzle and rapidly solidifies it by thermal contact. , A so-called single roll device. Of course, centrifugal quenching equipment that uses the inner wall of the drum, equipment that uses endless type belts, and improved versions of these, such as those with auxiliary rolls or roll surface temperature control equipment, or under reduced pressure or in vacuum or in inert gas Casting in is also included.

【0021】次に、本発明の方法において採用される鋳
造条件および具体的な鋳造の作業について説明する。溶
融金属の噴出圧力は0.01〜3kg/cm2 、ロール
の回転速度(表面速度)は5〜60m/秒の範囲であ
る。これらの条件は、所望の薄帯の板厚やその他の製造
条件に合わせて最適な値を選択する。
Next, the casting conditions adopted in the method of the present invention and the concrete casting work will be described. The ejection pressure of the molten metal is 0.01 to 3 kg / cm 2 , and the rotation speed (surface speed) of the roll is in the range of 5 to 60 m / sec. For these conditions, optimum values are selected according to the desired strip thickness and other manufacturing conditions.

【0022】鋳造作業として、溶解開始前に予め鋳造時
を想定してノズルとロールとの最適な間隔位置を設定
し、その後一旦、試料溶解用のワークコイル内にルツボ
を移動させてから試料を溶解する。そして、溶解後ロー
ル回転、噴出圧力を設定した後、再び予め設定しておい
たロールとの最適間隔位置にルツボを戻し鋳造を開始す
る。このため、ワークコイルの位置は、ロール表面から
少し離れた位置とするのが好ましい。
As a casting operation, the optimum gap position between the nozzle and the roll is set in advance before the start of melting, assuming the time of casting, and then the crucible is once moved into the work coil for melting the sample, and then the sample is sampled. Dissolve. After the melt is melted, the roll is rotated and the jet pressure is set, and then the crucible is returned to the preset optimum gap position with the roll to start casting. Therefore, the position of the work coil is preferably set at a position slightly apart from the roll surface.

【0023】本発明の方法により製造出来る薄帯の成分
としては、Al−Zr,Al−TiのAl合金が挙げら
れるが、特にこれらの合金に限定しない。また、本発明
の方法は、圧延などの加工が困難な金属の場合に利点が
大きいが、これらに限定されるものではない。勿論、溶
解する金属の種類によっては、特に、その反応性からル
ツボおよびノズルの材質として制限を受ける場合もあ
る。例えば、鉄と半金属(B、Si、Cなど)からなる
非晶質合金の場合、ルツボ材質として石英が使用される
が、Al合金の場合は活性元素であるAlを含むことか
ら石英の使用は難しく、例えば、窒化珪素やサイアロン
などが好ましい。
Examples of the components of the ribbon which can be produced by the method of the present invention include Al alloys such as Al-Zr and Al-Ti, but are not particularly limited to these alloys. Further, the method of the present invention has a great advantage in the case of a metal that is difficult to process such as rolling, but is not limited to these. Of course, depending on the kind of the metal to be melted, the material of the crucible and the nozzle may be limited due to its reactivity. For example, in the case of an amorphous alloy composed of iron and a semimetal (B, Si, C, etc.), quartz is used as the material for the crucible, but in the case of an Al alloy, quartz is used because it contains Al as an active element. Is difficult, and for example, silicon nitride or sialon is preferable.

【0024】[0024]

【実施例】以下に、本発明を実施例に基づいてさらに説
明する。実施例 表1に示す各種合金を用いて薄帯の製造を行った。用い
たルツボの材質はすべて窒化珪素であり、いずれも底部
にノズルを設けた。ノズル開口形状は、すべてのチャー
ジで0.8mm×40mmの矩形孔とした。用いた製造
装置は、冷却用ロールとして幅50mm、直径300m
mの銅製のロールを有する単ロール装置であり、鋳造雰
囲気はヘリウムガスとした。用いた合金の重量は、いず
れのチャージとも200gとした。
EXAMPLES The present invention will be further described below based on examples. Example Using various alloys shown in Table 1, ribbons were manufactured. The crucible materials used were all silicon nitride, and each had a nozzle at the bottom. The nozzle opening shape was a rectangular hole of 0.8 mm × 40 mm for all charges. The manufacturing equipment used was a cooling roll with a width of 50 mm and a diameter of 300 m.
It was a single roll device having m copper rolls, and the casting atmosphere was helium gas. The weight of the alloy used was 200 g for both charges.

【0025】試料溶解開始前に、予めスキマゲージを用
いてノズルを、表1に示す距離でロール上にセットし、
その後ルツボをワークコイル内まで上昇させて試料を溶
解した。試料溶解後、所定の温度になったことを確認し
てからルツボを予めセットした位置に戻して溶融試料を
噴出した。なお、その他の鋳造条件として、ロール表面
速度および噴出圧を、表1中に併せて示す。
Before starting the sample dissolution, the nozzle was previously set on the roll at a distance shown in Table 1 using a clearance gauge,
After that, the crucible was raised into the work coil to dissolve the sample. After the sample was melted, after confirming that the temperature reached a predetermined temperature, the crucible was returned to the preset position and the molten sample was ejected. In addition, as other casting conditions, the roll surface speed and the ejection pressure are also shown in Table 1.

【0026】得られた薄帯の板幅は、いずれのチャージ
ともおよそ40mmであった。得られた薄帯の外観を観
察した結果を、表1に示すが、いずれのチャージの薄帯
とも溝状欠陥や透けの発生は見受けられず良好な薄帯で
あった。
The strip width of the obtained ribbon was about 40 mm for each of the charges. The results of observing the appearance of the obtained ribbons are shown in Table 1. It was a good ribbon in which neither groove-like defects nor see-through was observed in any of the charged ribbons.

【0027】次に、得られた薄帯の板厚精度を調べるた
めに、薄帯長手方向2mごとに50mm長さのサンプル
を採取し、それぞれのサンプルについて測定板厚を得
た。さらに、採取したそれぞれのサンプルについて重
量、板幅、長さ、さらに合金の密度から計算板厚を得
て、それぞれのチャージについて、計算板厚/測定板厚
の比を求めた。得られた結果を、表1に示す。いずれの
チャージともこの板厚比は、90%を超えており、この
ことからも良好な薄帯が得られたことがわかった。
Next, in order to check the plate thickness accuracy of the obtained ribbon, a sample having a length of 50 mm was taken every 2 m in the longitudinal direction of the ribbon, and the plate thickness of each sample was obtained. Further, the calculated plate thickness was obtained from the weight, the plate width, the length, and the density of the alloy for each of the collected samples, and the calculated plate thickness / measured plate thickness ratio was obtained for each charge. The obtained results are shown in Table 1. The plate thickness ratio exceeded 90% for all the charges, which also proved that a good ribbon was obtained.

【0028】比較例 表1中No.20以降に比較例を示す。これらの比較例
は、ノズルとロール表面の距離をdで0.5mm超ま
たはdで1.5mm未満または5mm超として鋳造し
た結果を示したものである。このような条件で鋳造した
場合、いずれのチャージとも薄帯は得られたものの自由
表面に溝状欠陥が発生したり、透けが発生していた。実
施例と同様の要領で板厚比を求めたが、いずれのチャー
ジとも板厚比は90%未満と低く、また薄帯の板厚精度
も低くかった。
Comparative Example No. 1 in Table 1 Comparative examples are shown below. These comparative examples show the results of casting when the distance between the nozzle and the roll surface was more than 0.5 mm at d 1 or less than 1.5 mm at d 2 or more than 5 mm. In the case of casting under such conditions, although a ribbon was obtained with any of the charges, groove-like defects were generated on the free surface and see-through was generated. The plate thickness ratio was determined in the same manner as in the example, but the plate thickness ratio was low at less than 90% for all the charges, and the plate thickness accuracy of the ribbon was also low.

【0029】[0029]

【表1】 [Table 1]

【0030】[0030]

【発明の効果】以上のように、本発明により板厚精度の
高いAl合金薄帯の製造が可能となったことから、電解
コンデンサ等のように巻加工や積層して用いる用途にA
l合金を適用することが可能となった。コンデンサ特性
等に優れるAl合金をこのような用途に適用出来るよう
になったことから、電解コンデンサなどの製品の特性向
上が可能となる。
As described above, according to the present invention, it is possible to manufacture an aluminum alloy ribbon having a high plate thickness accuracy. Therefore, it can be used for winding or laminating such as electrolytic capacitors.
It has become possible to apply 1-alloy. Since the Al alloy, which has excellent capacitor characteristics and the like, can be applied to such applications, the characteristics of products such as electrolytic capacitors can be improved.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の方法を説明する模式図である。FIG. 1 is a schematic diagram illustrating a method of the present invention.

【図2】本発明の方法による第2リップとロール表面の
距離dと板厚精度の関係を示す図である。
FIG. 2 is a diagram showing the relationship between the distance d 2 between the second lip and the roll surface and the plate thickness accuracy according to the method of the present invention.

【図3】従来法の一例を説明する模式図である。FIG. 3 is a schematic diagram illustrating an example of a conventional method.

【図4】従来法の他の例を説明する模式図である。FIG. 4 is a schematic diagram illustrating another example of the conventional method.

【符号の説明】[Explanation of symbols]

1 ノズル第1リップ 2 ノズル第2リップ 3 溶融試料 4,9 パドル 5 冷却基板 6 薄帯 7 ノズル第2リップ底部に設けた導路 8 導路先端部 1 Nozzle 1st lip 2 Nozzle 2nd lip 3 Melted sample 4,9 Paddle 5 Cooling substrate 6 Thin strip 7 Nozzle 2nd nozzle Bottom guide path 8 Conductor tip

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】溶融金属を移動する冷却基板上にノズルを
介して噴出させて金属薄帯を得る方法において、溶融試
料噴出のためのノズルと冷却基板の距離を、冷却基板移
動方向前方では1.5mm〜5mmとし、後方では0.
02mm〜0.5mmとして移動冷却基板上に溶融試料
を噴出することを特徴とする急冷凝固薄帯の製造方法。
1. A method for obtaining a thin metal strip by jetting a molten metal onto a moving cooling substrate via a nozzle, wherein the distance between the nozzle for jetting the molten sample and the cooling substrate is 1 in the front direction of the cooling substrate moving. It is set to 0.5 mm to 5 mm and is set to 0.
A method for producing a rapidly solidified ribbon, characterized in that a molten sample is jetted onto a moving cooling substrate as 02 mm to 0.5 mm.
JP3576294A 1994-03-07 1994-03-07 Production of rapidly solidified strip Pending JPH07241651A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3576294A JPH07241651A (en) 1994-03-07 1994-03-07 Production of rapidly solidified strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3576294A JPH07241651A (en) 1994-03-07 1994-03-07 Production of rapidly solidified strip

Publications (1)

Publication Number Publication Date
JPH07241651A true JPH07241651A (en) 1995-09-19

Family

ID=12450872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3576294A Pending JPH07241651A (en) 1994-03-07 1994-03-07 Production of rapidly solidified strip

Country Status (1)

Country Link
JP (1) JPH07241651A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107234218A (en) * 2016-06-27 2017-10-10 安泰科技股份有限公司 The embedded nozzle of weld pool for preparing amorphous band

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107234218A (en) * 2016-06-27 2017-10-10 安泰科技股份有限公司 The embedded nozzle of weld pool for preparing amorphous band
CN107234218B (en) * 2016-06-27 2022-10-18 安泰科技股份有限公司 A embedded nozzle of weld pool for preparing amorphous strip

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