JP2872344B2 - Method and apparatus for forming amorphous material - Google Patents
Method and apparatus for forming amorphous materialInfo
- Publication number
- JP2872344B2 JP2872344B2 JP2113537A JP11353790A JP2872344B2 JP 2872344 B2 JP2872344 B2 JP 2872344B2 JP 2113537 A JP2113537 A JP 2113537A JP 11353790 A JP11353790 A JP 11353790A JP 2872344 B2 JP2872344 B2 JP 2872344B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- chamber
- pressure
- pair
- inorganic 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.)
- Expired - Fee Related
Links
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は迅速急冷により、金属、セラミック等の無機
材料を無定形化、ガラス化するアモルファス材料の形成
法およびその装置に関するもので、これらアモルファス
材料は機械的強度を増大したり、磁気特性、電気特性等
特異な機能を付与、向上することができるので、多方面
での利用が期待される。Description: TECHNICAL FIELD The present invention relates to a method and an apparatus for forming an amorphous material for amorphousizing and vitrifying inorganic materials such as metals and ceramics by rapid quenching. The material can be used in various fields because it can increase mechanical strength and impart and improve specific functions such as magnetic characteristics and electric characteristics.
［従来技術とその問題点］ 例えば、特開昭56−38252号等に開示されるように、
一対の圧延冷却ロールで溶融合金を圧延しつつ急冷し、
アモルファス合金材料を得ることは知られるところであ
り、さらに圧延に際して冷却エヤー等の冷媒を吹付ける
ことも公知である。[Prior art and its problems] For example, as disclosed in JP-A-56-38252 and the like,
Rapid cooling while rolling the molten alloy with a pair of rolling cooling rolls,
It is known to obtain an amorphous alloy material, and it is also known to spray a cooling medium such as a cooling air during rolling.
勿論冷却は材料表面からの熱移動によるので、従来冷
却手段によれば、材料を極めて薄い膜状とすることによ
り、材料内部に亘り急冷、アモルファス化を図る等の方
策を講ずるものであるが、それにも拘わらず冷却速度に
限界があるので、なお安定したアモルファス材料を得難
い。Of course, since the cooling is by heat transfer from the material surface, according to the conventional cooling means, the material is formed into an extremely thin film, so that rapid cooling over the inside of the material and amorphization are taken. Nevertheless, since the cooling rate is limited, it is still difficult to obtain a stable amorphous material.
また特開昭60−103043号、特開昭60−145921号等には
ガラス板に気体、またはこれと噴霧液との混合物を音速
以上の流速を以て吹付け、急冷強化することが開示され
ているが、勿論これをそのままアモルファス材料の形成
に利用することはできないし、特に噴霧液による方法で
は噴霧液を均一に吹付け、かつ液滴を均一径とするうえ
に難点があり、安定したアモルファス材料を得難い。Japanese Patent Application Laid-Open Nos. 60-100343 and 60-145921 disclose that a gas, or a mixture of this and a spray liquid, is sprayed onto a glass plate at a flow velocity higher than the speed of sound to enhance rapid cooling. However, of course, this cannot be used for forming an amorphous material as it is. Particularly, in the method using a spray liquid, there are difficulties in spraying the spray liquid uniformly and making the droplets have a uniform diameter. Hard to get.
本発明は既述した問題点を解消し、金属質またはセラ
ミック質のアモルファス材料を容易に形成する方法、お
よびそのための装置を提供するものである。The present invention solves the above-mentioned problems and provides a method for easily forming a metallic or ceramic amorphous material and an apparatus therefor.
［問題点を解決するための手段］ 本発明は金属質またはセラミック質無機材料の溶融細
流を一対のロールで引出し、これにエヤーノズル端から
エヤーを吐出して急冷凝固し、アモルファス材料を形成
する方法において、エヤー供給用チャンバーの元エヤー
圧を5kg/cm2以上とし、該チャンバーから予め常圧付近
のエヤー圧とした中間エヤーチャンバーを介し、エヤー
ノズル端に亘り２段の急激なエヤー膨張過程を経て、エ
ヤーノズル部の吐出圧力を0.5kg/cm2以下として高速気
流を気流の吐出方向が溶融細流と交差するように対向し
て設けた少なくとも一対のエヤーノズルから吐出し、衝
撃波を発生せしめて迅速急冷させてアモルファス化する
ことおよび金属質またはセラミック質無機材料を、その
溶融槽より流下させて、一対の引出しロールを経て一対
の急冷手段からの冷却エヤーの吐出により無機材料の溶
融細流を急冷凝固させてアモルファス材料を形成する装
置において、前記急冷手段が高圧エヤーチャンバーと、
該チャンバーからのエヤーを中間エヤチャンバーに導
き、かつ適所に開閉弁を配したエヤー管と、前記中間エ
ヤーチャンバーからのエヤーを音速以上の速度で前記無
機材の溶融細流に交差する方向に向け吐出するように対
向して設けた複数のノズルエヤーを音速以上の速度で前
記無機材に向け吐出する複数のノズル部とから形成した
ことからなる。[Means for Solving the Problems] The present invention provides a method for forming an amorphous material by drawing a molten fine stream of a metallic or ceramic inorganic material with a pair of rolls, discharging the air from the end of an air nozzle to rapidly cool and solidify the material. In the above, the original air pressure of the air supply chamber was set to 5 kg / cm 2 or more, and from the chamber through an intermediate air chamber which was previously set to an air pressure near normal pressure, through a two-stage rapid air expansion process across the air nozzle end. The discharge pressure of the air nozzle portion is set to 0.5 kg / cm 2 or less, and a high-speed air flow is discharged from at least a pair of air nozzles provided so as to intersect the discharge direction of the air flow so as to intersect with the molten fine stream, thereby generating a shock wave and rapidly cooling. And the metal or ceramic inorganic material is allowed to flow down from the melting tank, and is passed through a pair of pull-out rolls. In an apparatus for rapidly cooling and solidifying a molten stream of an inorganic material by discharging cooling air from a pair of rapid cooling means to form an amorphous material, the rapid cooling means includes a high-pressure air chamber,
The air from the chamber is guided to the intermediate air chamber, and the air from the intermediate air chamber is discharged in the direction intersecting the molten fine stream of the inorganic material at a speed equal to or higher than the speed of sound, with an air pipe provided with an on-off valve in place. A plurality of nozzle airs provided opposite to each other so as to discharge toward the inorganic material at a speed higher than the speed of sound.
［実施例］ 以下本発明を添付の図面に基づき説明する。Examples The present invention will be described below with reference to the accompanying drawings.
第１図は本発明における無機溶融材料へのエヤー吹付
け部の正面図で、２は金属質またはセラミック質無機材
料２の溶融槽であり、その融点以上に加熱維持せしめる
ものである。FIG. 1 is a front view of an air spraying unit for an inorganic molten material according to the present invention. Reference numeral 2 denotes a melting tank for a metallic or ceramic inorganic material 2, which is heated to a temperature higher than its melting point.
当該無機材料２としては、Fe−Cr−Ｐ−O,Fe−Co−Si
−B,Fe−Cr−Ｐ−Ｃその他の合金材料、SiO2−Al2O3−C
aO,SiO2−TiO2−Na2O,Na2O−Ta2O5−Nb2O5等のガラス材
料や従来ガラス化が困難とされていたセラミック質材料
が適用される。As the inorganic material 2, Fe-Cr-PO, Fe-Co-Si
-B, Fe-Cr-P- C and other alloy material, SiO 2 -Al 2 O 3 -C
Glass materials such as aO, SiO 2 —TiO 2 —Na 2 O, Na 2 O—Ta 2 O 5 —Nb 2 O 5, and ceramic materials which have conventionally been difficult to vitrify are applied.
３はオリフィスで径数mmないし数十mmの範囲で適宜口
径を設定できる。オリフィス３より流下した無機材料２
はさらに引出しロール４、４により引出される。Reference numeral 3 denotes an orifice whose diameter can be set appropriately within a range of several mm to several tens mm. Inorganic material 2 flowing down from orifice 3
Is further extracted by the extraction rolls 4 and 4.
引出し速度は数十cm/秒ないし数十m/秒とするもの
で、本発明においては従来手段におけるような極めて薄
い膜形成のための高速の引出し、過剰の圧延を必要とし
ない。The drawing speed is set to several tens cm / sec to several tens m / sec, and the present invention does not require high-speed drawing for forming an extremely thin film and excessive rolling as in the conventional means.
５、5aは一対のエヤーノズル部で、その先端より高速
気流６、6aを吐出するものである。なおエヤー管は図中
５′、5a′で示すように複数設けて無機材料２に高速気
流が充分行渡るようにする。Reference numerals 5 and 5a denote a pair of air nozzles, which discharge high-speed airflows 6 and 6a from the tips. A plurality of air tubes are provided as shown by 5 'and 5a' in the figure so that a high-speed air flow can sufficiently pass through the inorganic material 2.
第２図は高速気流を発生し吐出する一対の急冷手段に
おける一方の正面図であり、図示しないコンプレッサー
から導入したエヤーは高圧エヤーチャンバー７に貯留す
る。そのエヤー圧力は後述するように無機材料２を効果
的にアモルファス化するために必要な高速気流６を発生
するうえで、5kg/cm2以上とするものである。FIG. 2 is a front view of one of a pair of quenching means for generating and discharging a high-speed airflow. An air introduced from a compressor (not shown) is stored in a high-pressure air chamber 7. The air pressure is set to 5 kg / cm 2 or more in order to generate a high-speed airflow 6 necessary for effectively amorphousizing the inorganic material 2 as described later.
高圧エヤーチャンバー７からのエヤーはエヤー管８に
導くが、エヤー管８は開閉弁９により低圧側エヤー管10
と区画せしめる。該エヤー管10の他端は常圧付近に圧力
調整した中間エヤーチャンバー11の一方の側と接続し、
該中間エヤーチャンバー11の他方の側は１以上のノズル
部５、５′と接続せしめる。The air from the high-pressure air chamber 7 is guided to an air pipe 8, and the air pipe 8 is opened and closed by an on-off valve 9.
And let me partition. The other end of the air tube 10 is connected to one side of an intermediate air chamber 11 whose pressure has been adjusted to near normal pressure,
The other side of the intermediate air chamber 11 is connected to one or more nozzle portions 5, 5 '.
該ノズル部５、５′の形状は問わず、円筒状であって
もよいし、あるいは、ラバール管タイプとすればなお都
合がよい。Regardless of the shape of the nozzle portions 5, 5 ', it may be cylindrical or a Laval tube type is more convenient.
なお中間エヤーチャンバー11は開閉弁９の開放に先立
ち、予めチャンバー内気圧を常圧以外とする場合は、導
管12（破線で示す）を介し、図示しないコンプレッサー
または高圧ポンプによりエヤー導入するようにし、ある
いは更に例えば開閉弁13（破線で示す）により機密維持
するようにしてもよく、該開閉弁13は前記開閉弁９と連
動し開閉せしめる。しかして高圧エヤーチャンバー７か
らのエヤーは開閉弁９の開放により速い気流を発生して
エヤー管10から中間エヤーチャンバー11にかけて急膨張
し、さらにノズル部５、５′においては吐出圧力0.5kg/
cm2以下を以て音速またはそれを超える高速の波動、す
なわち衝撃波６となして無機材料２に向け吐出し、これ
を急冷しアモルファス化するものである。Prior to opening the on-off valve 9, the intermediate air chamber 11 introduces air by a compressor or a high-pressure pump (not shown) through a conduit 12 (shown by a broken line) when the pressure inside the chamber is set to a value other than normal pressure in advance. Alternatively, the confidentiality may be maintained by, for example, an on-off valve 13 (indicated by a broken line). Thus, the air from the high-pressure air chamber 7 generates a fast airflow by opening the on-off valve 9 and rapidly expands from the air pipe 10 to the intermediate air chamber 11, and further, the nozzle section 5, 5 'has a discharge pressure of 0.5 kg /.
The waves are discharged toward the inorganic material 2 as a high-speed wave having a sound speed of not less than cm 2 or higher, that is, a shock wave 6, which is rapidly cooled to be amorphous.
本発明の構成によれば安定して衝撃波を発生でき、そ
れにより効率的に無機材料を迅速急冷できる。ADVANTAGE OF THE INVENTION According to the structure of this invention, a shock wave can be generated stably, and thereby the inorganic material can be rapidly and rapidly cooled.
実施例１〜５および比較例１〜３ 第１、第２図に示す構成、すなわち高圧エヤーチャン
バー７〜エヤー管８、10（開閉弁９）〜中間エヤーチャ
ンバー11〜エヤーノズル部５、５′よりなる冷却手段一
対を用い、第１表に示す圧力条件で高速気流をパルス発
振し、溶融槽１より引出した各種合金材料、セラミッ
ク，ガラス材料２のアモルファス化（ガラス化）試験を
実施した。Examples 1 to 5 and Comparative Examples 1 to 3 Configurations shown in FIGS. 1 and 2, that is, from the high-pressure air chamber 7 to the air pipes 8 and 10 (open / close valve 9) to the intermediate air chamber 11 to the air nozzle portions 5 and 5 ′ Using a pair of cooling means, a high-speed air current was pulse-oscillated under the pressure conditions shown in Table 1 to perform an amorphization (vitrification) test on various alloy materials, ceramics, and glass materials 2 drawn from the melting tank 1.
なお表中Ｘ、Ｙは第２図の圧力メーターの位置Ｘ、Ｙ
に対応する。In the table, X and Y are the positions X and Y of the pressure meter in FIG.
Corresponding to
結果は外観観察およびＸ線回折により、アモルファス
化（ガラス化）良好なものと、局部的に結晶析出（失
透）したもの、結晶析出が甚だしいものとに区分し、そ
の形状もあわせて第１表に示した。The results were classified by observation of appearance and X-ray diffraction into those with good amorphous (vitrification), those with local crystal precipitation (devitrification), and those with severe crystal precipitation. It is shown in the table.
表から明らかなように実施例において良好な結果を示
す。他方比較例１、３は元エヤー圧力が低く、比較例２
は中間エヤーチャンバーを設けないために、アモルファ
ス化に必要な高速気流が発生せず、いずれも結晶析出
（失透）が認められた。As is clear from the table, good results are shown in the examples. On the other hand, Comparative Examples 1 and 3 had lower original air pressures, and Comparative Example 2
Since no intermediate air chamber was provided, no high-speed airflow required for amorphization was generated, and crystal precipitation (devitrification) was observed in each case.
［発明の効果］ 本発明によれば、無機材料を効率的かつ安定して急冷
でき容易にアモルファス材料を得ることができるという
効果を奏する。 [Effects of the Invention] According to the present invention, an inorganic material can be efficiently and stably quenched and an amorphous material can be easily obtained.
【図面の簡単な説明】 第１、第２図は本発明に係る正面図である。 ５、５′、5a、5a′……エヤーノズル部 ７……高圧エヤーチャンバー ８、10……エヤー管、９……開閉弁 11……中間エヤーチャンバーBRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 and 2 are front views according to the present invention. 5, 5 ', 5a, 5a' ... air nozzle section 7 ... high-pressure air chamber 8, 10 ... air pipe, 9 ... on-off valve 11 ... intermediate air chamber
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｃ２２Ｃ 45/02 Ｃ２２Ｃ 45/04 Ｅ 45/04 Ｃ０４Ｂ 35/60 Ｂ (58)調査した分野(Int.Cl.6，ＤＢ名) B22D 11/01 C02C 1/00 C22C 1/02 501 C04B 35/60 C03B 27/00 B01J 10/00 B01J 19/00 301 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 identification code FI C22C 45/02 C22C 45/04 E 45/04 C04B 35/60 B (58) Investigated field (Int.Cl. 6 , DB name) ) B22D 11/01 C02C 1/00 C22C 1/02 501 C04B 35/60 C03B 27/00 B01J 10/00 B01J 19/00 301
Claims (2)
細流を一対のロールで引出し、これにエヤーノズル端か
らエヤーを吐出して急冷凝固し、アモルファス材料を形
成する方法において、エヤー供給用チャンバーの元エヤ
ー圧を5kg/cm2以上とし、該チャンバーから予め常圧付
近のエヤー圧とした中間エヤーチャンバーを介し、エヤ
ーノズル端に亘り２段の急激なエヤー膨張過程を経て、
エヤーノズル部の吐出圧力を0.5kg/cm2以下として高速
気流を気流の吐出方向が溶融細流と交差するように対向
して設けた少なくとも一対のエヤーノズルから吐出し、
衝撃波を発生せしめて迅速急冷させてアモルファス化す
ることを特徴とするアモルファス材料の形成法。1. A method for forming an amorphous material in a method in which a molten fine stream of a metallic or ceramic inorganic material is drawn out by a pair of rolls, and an air is discharged from the end of an air nozzle to rapidly cool and solidify to form an amorphous material. The air pressure was set to 5 kg / cm 2 or more, and from the chamber through an intermediate air chamber which was previously set to an air pressure near normal pressure, through a two-stage rapid air expansion process across the air nozzle end,
The discharge pressure of the air nozzle portion is 0.5 kg / cm 2 or less, and the high-speed airflow is discharged from at least one pair of air nozzles provided so as to face each other so that the discharge direction of the airflow intersects with the molten fine stream,
A method for forming an amorphous material, which comprises generating a shock wave, rapidly quenching and amorphizing.
の溶融槽より流下させ、一対の引出しロールを経て一対
の急冷手段からの冷却用エヤーの吐出により無機材料の
溶融細流を急冷凝固させてアモルファス材料を形成する
装置において、前記急冷手段が高圧エヤーチャンバー
と、該チャンバーからのエヤーを中間エヤチャンバーに
導き、かつ適所に開閉弁を配したエヤー管と、前記中間
エヤーチャンバーからのエヤーを音速以上の速度で前記
無機材の溶融細流に交差する方向に向け吐出するように
対向して設けた複数のノズル部とから形成してなること
を特徴とするアモルファス材料の形成装置。2. A method in which a metallic or ceramic inorganic material is caused to flow down from a melting tank thereof, and a molten air stream is rapidly solidified by discharging a cooling air from a pair of quenching means through a pair of draw-out rolls. In the apparatus for forming a material, the quenching means guides an air from the high-pressure air chamber, an air from the chamber to an intermediate air chamber, and an air pipe provided with an on-off valve in an appropriate position. A plurality of nozzle portions provided so as to be discharged in a direction intersecting with the molten fine stream of the inorganic material at a speed of (i).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2113537A JP2872344B2 (en) | 1990-04-27 | 1990-04-27 | Method and apparatus for forming amorphous material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2113537A JP2872344B2 (en) | 1990-04-27 | 1990-04-27 | Method and apparatus for forming amorphous material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH049250A JPH049250A (en) | 1992-01-14 |
| JP2872344B2 true JP2872344B2 (en) | 1999-03-17 |
Family
ID=14614835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2113537A Expired - Fee Related JP2872344B2 (en) | 1990-04-27 | 1990-04-27 | Method and apparatus for forming amorphous material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2872344B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5767294A (en) * | 1993-02-17 | 1998-06-16 | Hoechst Celanese Corporation | Process for the production of trioxane from formaldehyde |
-
1990
- 1990-04-27 JP JP2113537A patent/JP2872344B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH049250A (en) | 1992-01-14 |
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