JPS6319262B2 - - Google Patents
Info
- Publication number
- JPS6319262B2 JPS6319262B2 JP56044880A JP4488081A JPS6319262B2 JP S6319262 B2 JPS6319262 B2 JP S6319262B2 JP 56044880 A JP56044880 A JP 56044880A JP 4488081 A JP4488081 A JP 4488081A JP S6319262 B2 JPS6319262 B2 JP S6319262B2
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- molten metal
- support plate
- metal strip
- hole
- 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
Links
- 229910052751 metal Inorganic materials 0.000 claims description 40
- 239000002184 metal Substances 0.000 claims description 40
- 239000005300 metallic glass Substances 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 238000010791 quenching Methods 0.000 claims description 12
- 230000000171 quenching effect Effects 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 5
- 239000003779 heat-resistant material Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 8
- 229910010293 ceramic material Inorganic materials 0.000 description 6
- 238000001816 cooling Methods 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
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/064—Accessories therefor for supplying molten metal
- B22D11/0642—Nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Description
【発明の詳細な説明】
本発明は、非晶質金属（合金）のストリツプ或
は箔（以下単にストリツプという）の製造装置の
改良に関し、特に広巾の非晶質金属ストリツプの
製造において有用なノズル装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an apparatus for manufacturing an amorphous metal (alloy) strip or foil (hereinafter simply referred to as a strip), and a nozzle particularly useful in manufacturing a wide amorphous metal strip. Regarding equipment.
従来、非晶質金属ストリツプは、高速回転する
急冷用ロール面に、ストリツプ巾に相当する長さ
の細長いスリツトを備えたノズルを通して非晶質
金属溶湯を噴出し、これを急速に冷却することに
より製造されるもので、この場合溶湯を噴出する
ノズルには、1200℃乃至1450℃の溶湯温度に耐え
得る材料として一般に石英が用いられており、例
えば平板又はパイプ状の石英に製品ストリツプ等
の巾に相当する長さの細長いスリツトを超音波振
動子にて加工形成し、これを溶湯噴出ノズルとし
て使用するものが普通であつた。 Conventionally, amorphous metal strips are manufactured by jetting molten amorphous metal onto the surface of a rapidly rotating rapidly cooling roll through a nozzle equipped with a long and narrow slit corresponding to the width of the strip, and rapidly cooling the molten metal. In this case, quartz is generally used for the nozzle that spouts the molten metal as a material that can withstand the molten metal temperature of 1200°C to 1450°C. It was common to use an ultrasonic vibrator to process and form an elongated slit with a length corresponding to , and use this as a molten metal spouting nozzle.
ところで非晶質金属ストリツプの製造装置にお
ける溶湯噴出ノズルにおいては、極薄の数十ミク
ロンという製品厚さを均一に維持して非晶質金属
ストリツプを製造せんとする場合、例えば0.5mm
という狭い溝巾のスリツトを製品巾に相当するス
リツト全長に亘つて精度よく加工する必要がある
とともに、溶湯噴出中に前記溝巾が変動すること
のないように維持されなければならない。 By the way, in order to manufacture an amorphous metal strip while maintaining a uniform product thickness of several tens of microns, the molten metal spout nozzle in an amorphous metal strip manufacturing device has a thickness of, for example, 0.5 mm.
It is necessary to precisely machine the slit with such a narrow groove width over the entire length of the slit corresponding to the product width, and the groove width must be maintained so as not to fluctuate during the spouting of the molten metal.
而して従来のこの種の非晶質金属ストリツプの
製造において、通常、製品巾が数十mm程度で一度
に連続的に製造する非晶質金属量も数Kgである場
合には、前記したような従来の石英ノズルを用い
てもそれ程大きなトラブルは起きなかつたが、し
かしながら、製品巾が更に広巾となり、例えば巾
100mm以上の非晶質金属ストリツプを大量に連続
生産する場合には、ノズルが圧力を印加した高温
溶湯に長時間に亘つて接触するため溶損の他にノ
ズル材料が石英であつても軟化現象が起こり、こ
れに伴つてスリツト壁面に膨隆が生じて正確な溝
巾の維持が困難になり、更にかかる問題の他に
も、石英ノズルの場合には100mm以上にもなるス
リツト全長に亘つて、例えば溝巾0.5mmの寸法精
度を確保しつつスリツト加工をすることは、材料
の性質上最近の超音波加工をもつてしても非常な
困難を伴うものであつた。 In the conventional production of this type of amorphous metal strip, the width of the product is usually several tens of millimeters and the amount of amorphous metal produced continuously at one time is several kilograms. Using conventional quartz nozzles such as the
When mass-producing amorphous metal strips of 100 mm or more, the nozzle comes into contact with high-temperature molten metal under pressure for a long time, which causes melting damage and softening even if the nozzle material is quartz. This causes a bulge on the slit wall surface, making it difficult to maintain an accurate groove width.In addition to this problem, over the entire length of the slit, which is over 100 mm in the case of quartz nozzles, For example, slitting while maintaining a dimensional accuracy of 0.5 mm in groove width is extremely difficult due to the nature of the material, even with the latest ultrasonic processing.
本発明は、非晶質金属ストリツプの製造装置に
おける従来の溶湯噴出ノズルに関する上記した問
題点を解決するノズル装置を提供するもので、そ
の要旨とするところは、溶湯収容容器の供給口に
連通され、かつ先端が急冷用ロールの回転表面に
近接するよう配置されたセラミツク質ノズルを備
え、このノズルに形成したスリツト開口より溶湯
を急冷用表面に連続供給して急冷凝固させる非晶
質金属ストリツプの製造装置において、前記ノズ
ルは耐熱材よりなる支持板の孔部への先端方向抜
け出しを係止した嵌着保持にて支持させると共
に、該支持板のノズル嵌着保持孔部縁の内部には
孔部長尺方向に沿つて通電発熱体を埋設させたこ
とを特徴とし、かかる構成によつて製品ストリツ
プが広巾のものであつても長時間に亘つてノズル
の正確なスリツト巾を維持し、非晶質金属ストリ
ツプの大量連続生産を可能ならしめたものであ
る。 The present invention provides a nozzle device that solves the above-mentioned problems regarding the conventional molten metal spouting nozzle in an amorphous metal strip manufacturing device. , and is equipped with a ceramic nozzle whose tip is placed close to the rotating surface of the quenching roll, and the amorphous metal strip is rapidly solidified by continuously supplying molten metal to the quenching surface through a slit opening formed in this nozzle. In the manufacturing apparatus, the nozzle is supported by a fitting and holding mechanism that prevents the nozzle from coming out in the distal direction into the hole of a support plate made of a heat-resistant material, and a hole is provided inside the edge of the nozzle fitting and holding hole of the support plate. It is characterized by having a current-carrying heating element buried along the lengthwise direction, and with this structure, even if the product strip is wide, the nozzle can maintain an accurate slit width for a long time, and the amorphous This made continuous mass production of quality metal strips possible.
以下本発明の一実施例につき、図面を参照して
詳細に説明する。 Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.
第１図は、本発明による溶湯噴出ノズル装置を
備えた非晶質金属ストリツプ製造装置の要部断面
図で、同図中１は、1200℃乃至1450℃の温度に保
たれる溶湯２を収容する耐火物製の容器で、本実
施例では該容器１には適宜溶湯の保温のための加
熱手段例えば側壁中に加熱コイル（図示せず）が
埋設されている。また容器１には収容した溶湯が
消費されるに従つて図示矢印Ａに示す如く絶えず
補給されるように設けられているが実用上は容器
１の上部に蓋をし溶湯の酸化を防止するため不活
性ガスを供給したり、或は供給溶湯に噴出圧力を
安定的に印加するため加圧不活性ガスを供給する
手段等を付設することもとり得る。 FIG. 1 is a cross-sectional view of the main parts of an amorphous metal strip manufacturing apparatus equipped with a molten metal spouting nozzle device according to the present invention. In this embodiment, the container 1 is appropriately equipped with a heating means for keeping the temperature of the molten metal, such as a heating coil (not shown) embedded in the side wall. Further, as the molten metal contained in the container 1 is consumed, it is constantly replenished as shown by arrow A in the figure, but in practice, the top of the container 1 is covered to prevent oxidation of the molten metal. It is also possible to provide means for supplying pressurized inert gas to supply inert gas or to stably apply jetting pressure to the supplied molten metal.
容器１の底壁４には矩形の溶湯供給口３が設け
られている。尚、図示の実施例においては該溶湯
供給口３は底壁４の略々中央に設けられているが
必らずしもこれに限定されるものではなく下部側
壁に設けてもよいことは当然である。 A rectangular molten metal supply port 3 is provided in the bottom wall 4 of the container 1 . Incidentally, in the illustrated embodiment, the molten metal supply port 3 is provided approximately at the center of the bottom wall 4, but it is not necessarily limited to this, and it is of course possible to provide it on the lower side wall. It is.
次にノズル装置について述べると、これはノズ
ル５およびこのノズルを固定的に支持する支持板
７とからなり、該ノズル５は前記容器１の溶湯供
給口３に連通する位置に後記急冷用ロールの回転
表面に近接対向して配置されるもので、急冷用ロ
ール表面に溶湯を連続的に噴出供給するための細
長いスリツト６がロール母線方向に沿つて形成さ
れている。本発明におけるこのノズル５は、耐熱
性に優れ、熱による容積変化の少ないセラミツク
材例えばアルミナ（Al2O3）、窒化珪素（Si3N4）、
窒化硼素（BN）等で構成される。即ちこのよう
なセラミツク材は耐熱性等が非常に優れている反
面、比較的加工性に劣るために成形加工の歩溜り
はあまり高くない問題を持つが、本発明の構成に
よればノズルの支持形状が比較的簡易であると共
にその構成をスリツト形成部分に限局できること
となるためであり、更に二以上の分割片の組合せ
接合にてスリツトを形成する組立て式でノズルを
構成すれば、スリツトを形成する各分割片の面は
夫々単独の加工時にはオープンな面となり、比較
的簡易な研摩機等の機械でスリツトの形成を精度
よく行なうことができるため前記セラミツク材の
特徴を一層有効に利用できることとなる。 Next, the nozzle device is composed of a nozzle 5 and a support plate 7 that fixedly supports the nozzle. The slit 6 is disposed close to the rotating surface and is formed along the generatrix direction of the roll for continuously jetting and supplying the molten metal to the surface of the quenching roll. The nozzle 5 of the present invention is made of a ceramic material with excellent heat resistance and little change in volume due to heat, such as alumina (Al 2 O 3 ), silicon nitride (Si 3 N 4 ),
Composed of boron nitride (BN), etc. In other words, although such ceramic materials have very good heat resistance, they have a problem that the yield of molding is not very high because of their relatively poor workability.However, according to the structure of the present invention, the nozzle support This is because the shape is relatively simple and the configuration can be limited to the slit forming part.Furthermore, if the nozzle is constructed by an assembly type in which the slit is formed by combining and joining two or more divided pieces, the slit can be formed. The surface of each divided piece becomes an open surface when processed individually, and the slits can be formed with high accuracy using a relatively simple machine such as a grinder, so the characteristics of the ceramic material can be used more effectively. Become.
そしてこのノズル５は、支持板７によつて急冷
用ロールに対向する先端部方向への抜け出しが係
止されるようにその孔部８に嵌着保持されて支持
される構成をなしており、図に実施例として示し
たものでは、長手方向の一対の外側面が先端側に
向つて細巾となるテーパー状（第２図参照）に形
成されて全体として逆截頭台形状をなし、後記支
持板７の対応するテーパー孔部８に嵌着して保持
されることにより溶湯噴出時の圧力に抗して先端
側に抜け出すことなく確実に支持されている。こ
の際のノズル５の支持板７に対する着脱はこれが
単なる接合嵌着で足りるためきわめて容易であ
る。 The nozzle 5 is fitted and supported in the hole 8 so that the support plate 7 prevents the nozzle from coming out in the direction of the tip facing the quenching roll. In the example shown in the figure, a pair of longitudinal outer surfaces are formed in a tapered shape that becomes narrower toward the distal end (see Figure 2), forming an inverted truncated trapezoidal shape as a whole. By being fitted and held in the corresponding taper hole 8 of the support plate 7, the support plate 7 is reliably supported without slipping out toward the tip side against the pressure when the molten metal is ejected. At this time, attachment and detachment of the nozzle 5 to and from the support plate 7 is extremely easy since it is sufficient to simply attach and fit the nozzle 5 to the support plate 7.
またノズル５は前述の如くスリツト６の面の加
工容易化のために分割片の組立て式とすることが
好ましく、図に実施例として示したものでこのよ
うな例を示している。即ち、本実施例のノズル５
はスリツト６を囲む側壁を含む平面を接合面とし
た一対の分割片５ａ，５ｂよりなり、一方の分割
片５ｂの片面にその長手方向両端に一対の突部を
残してスリツト６となる溝を加工成形した後、両
分割片５ａ，５ｂを接合してなるものである。尚
この分割片の接合面は単に密接させることで足り
る。このようにして形成されたノズル５のスリツ
ト６の長さは、ストリツプ製品巾に相当する長さ
として任意に選定することができ、またスリツト
６の溝巾は、所望の非晶質金属ストリツプの厚さ
によつて種々変更することができ、通常１mm程度
以下、好ましくは0.8mm〜0.3mmの範囲で、スリツ
トの全長に亘り一定巾を維持するように正確に加
工すればよいが、特にこれに限定されるものでは
ない。 Further, as mentioned above, it is preferable that the nozzle 5 be of an assembled type in which divided pieces are assembled in order to facilitate machining of the surface of the slit 6, and such an example is shown in the figure. That is, the nozzle 5 of this embodiment
consists of a pair of divided pieces 5a and 5b whose joint surfaces are planes including the side walls surrounding the slit 6, and a groove that will become the slit 6 is formed on one side of one divided piece 5b with a pair of protrusions left at both ends in the longitudinal direction. After processing and forming, the two divided pieces 5a and 5b are joined together. It is sufficient to simply bring the joint surfaces of the divided pieces into close contact with each other. The length of the slit 6 of the nozzle 5 formed in this way can be arbitrarily selected as a length corresponding to the width of the strip product, and the groove width of the slit 6 can be set to the width of the desired amorphous metal strip. The thickness can be changed in various ways depending on the thickness, and it is usually less than about 1 mm, preferably in the range of 0.8 mm to 0.3 mm, as long as it is precisely processed to maintain a constant width over the entire length of the slit. It is not limited to.
支持板７はノズル５を嵌着保持するものであ
り、図に示すように、ノズル５が支持板７のテー
パー孔部８に嵌着保持されるときその下端の一部
が支持板７の下面より突出して急冷用ロールの回
転表面に正対される。 The support plate 7 fits and holds the nozzle 5, and as shown in the figure, when the nozzle 5 is fitted and held in the tapered hole 8 of the support plate 7, a part of its lower end touches the bottom surface of the support plate 7. It protrudes further and directly faces the rotating surface of the quenching roll.
そしてこの支持板７は、前述のようにノズル５
を嵌着保持して、これを溶湯に加えられる噴出圧
に抗して支持するに足る充分な強度を有し、かつ
ノズル５を予熱或いは温度降下が起きないように
するための材質及び構造に設けられている。即ち
支持板７は耐熱性、機械的強度に優れたセラミツ
ク材、例えばアルミナ（Al2O3）、ジルコニア
（ZrO3）、マグネシア（MgO）、窒化珪素
（Si3N4）等にて形成し、またノズル５の嵌着保
持のための孔部８長尺方向に沿つて、支持板７の
孔部８縁内側に例えば図示しない電力線の接続さ
れた炭化珪素（SiC）、白金抵抗体等の通電発熱
体９を埋設させた構造に構成している。 This support plate 7 is connected to the nozzle 5 as described above.
The material and structure have sufficient strength to fit and hold the nozzle 5 against the jetting pressure applied to the molten metal, and prevent preheating of the nozzle 5 or temperature drop. It is provided. That is, the support plate 7 is made of a ceramic material with excellent heat resistance and mechanical strength, such as alumina (Al 2 O 3 ), zirconia (ZrO 3 ), magnesia (MgO), silicon nitride (Si 3 N 4 ), etc. In addition, along the longitudinal direction of the hole 8 for fitting and holding the nozzle 5, there is a material such as silicon carbide (SiC), platinum resistor, etc. connected to a power line (not shown) on the inner side of the edge of the hole 8 of the support plate 7. It has a structure in which an energizing heating element 9 is embedded.
そしてこのようなノズル材料の選択並び構造の
採用は次の理由による。即ち、ノズル５のスリツ
ト開口部６ａより急冷用ロールの回転表面に連続
的に噴出される溶融金属溶湯は、1200℃乃至1450
℃程の高温であるため、ノズル周囲の配設部材に
は全て耐熱材料を用いる必要があり、また溶湯の
噴出初期においては熱衝撃でノズルが破壊しない
よう、またノズル内で溶湯の凝固が起らないよう
にこのノズルは予熱しておくことが望ましく、更
に操業中においてもノズル部分の温度降下が生ず
ると、スリツト６を通る溶湯の流動性低下、著し
い場合には閉塞を招くことがあり、これらの点と
ノズル５の支持板７の機械的強度の条件を併せ考
慮して本発明の構成が望ましい構成となるからで
ある。 The selection and arrangement of nozzle materials is adopted for the following reasons. That is, the molten metal continuously jetted from the slit opening 6a of the nozzle 5 onto the rotating surface of the quenching roll has a temperature of 1200°C to 1450°C.
Because the temperature is as high as ℃, it is necessary to use heat-resistant materials for all the materials installed around the nozzle, and in the early stages of spouting the molten metal, measures must be taken to prevent the nozzle from being destroyed by thermal shock and to prevent the molten metal from solidifying inside the nozzle. It is desirable to preheat this nozzle to prevent this from happening. Furthermore, if the temperature of the nozzle part drops during operation, the fluidity of the molten metal passing through the slit 6 may decrease, and in severe cases, it may cause blockage. This is because the configuration of the present invention becomes a desirable configuration by considering these points together with the mechanical strength conditions of the support plate 7 of the nozzle 5.
尚、支持板７は必ずしも全部を同一材にて構成
する必要はなく、第３図に略示する如く発熱体９
を埋設した部分の支持体７の外側を更に熱伝導率
の低い補助支持板７′にて囲むことにより予熱効
率を向上させる構成とする他、第４図イ，ロに示
す如く支持板７内の発熱体９が該支持板７形成し
たノズル長尺方向をなす貫通孔７ａ内を挿通する
ように構成してもよい。尚、１０は発熱体９に接
続された電力線である。 Note that the support plate 7 does not necessarily have to be entirely made of the same material, and as shown schematically in FIG.
In addition, the preheating efficiency is improved by surrounding the outside of the support body 7 in the buried portion with an auxiliary support plate 7' having a low thermal conductivity. The heating element 9 may be configured to be inserted through a through hole 7a formed in the support plate 7 and extending in the longitudinal direction of the nozzle. Note that 10 is a power line connected to the heating element 9.
１２は鉄製或いは銅製の急冷用ロールで、前記
支持板７に嵌着保持されたノズル５のスリツト開
口部６ａが、高速回転する該急冷用ロール１２表
面に近接しかつスリツト長手方向をロール母線方
向に一致する位置関係に配置されている。かくし
て高速回転する急冷用ロール１２の表面に溶湯が
ノズル５のスリツト開口部６ａから噴出される
と、急激に冷却されてスリツト長さに相当する製
品巾のストリツプが連続的に生産される。この際
厚さが均一なストリツプを得るためには、ロール
表面を平滑美麗な面にしておかねばならないこと
は当然であり、またスリツト開口部６ａと急冷用
ロール１２の表面間の間隙は0.1mm乃至0.5mm程度
の微小間隙に保つのが適当である。 Reference numeral 12 denotes a quenching roll made of iron or copper, in which the slit opening 6a of the nozzle 5, which is fitted and held on the support plate 7, is close to the surface of the quenching roll 12, which rotates at high speed, and the longitudinal direction of the slit is in the direction of the roll generatrix. are arranged in a positional relationship that matches. When the molten metal is ejected from the slit opening 6a of the nozzle 5 onto the surface of the rapidly rotating rapidly cooling roll 12, it is rapidly cooled and a strip having a product width corresponding to the slit length is continuously produced. At this time, in order to obtain a strip with a uniform thickness, it goes without saying that the roll surface must be smooth and beautiful, and the gap between the slit opening 6a and the surface of the quenching roll 12 is 0.1 mm. It is appropriate to maintain a minute gap of about 0.5 mm.
次に本実施例においては容器１の底壁４と支持
板７との間にゲート板１３を設けており、これに
ついて説明すると、このゲート板１３は、溶湯供
給口３よりの溶湯をノズル５に導く連通口１１を
有しており、底壁４の下面および支持板７の上面
にそれぞれ液密的に密接して左右に摺動自在に配
設されている。したがつて連通口１１が溶湯供給
口３に連通しない位置にこのゲート板１３をずら
せておくことによりノズル５からの溶湯の噴出を
中止することができる。尚、このような噴出流の
開始・停止は、容器１の底壁４自体に溶湯供給口
３の開閉用ストツパーを設けることができる他、
他のストツパー機構によつてもよく、このように
すれば前記ゲート板１３は必ずしも必要としない
ものである。 Next, in this embodiment, a gate plate 13 is provided between the bottom wall 4 of the container 1 and the support plate 7. To explain this, this gate plate 13 directs the molten metal from the molten metal supply port 3 to the nozzle 5. It has a communication port 11 that leads to the lower surface of the bottom wall 4 and the upper surface of the support plate 7, and is disposed in fluid-tight contact with the lower surface of the bottom wall 4 and the upper surface of the support plate 7, respectively, so as to be slidable left and right. Therefore, by shifting the gate plate 13 to a position where the communication port 11 does not communicate with the molten metal supply port 3, the ejection of molten metal from the nozzle 5 can be stopped. The start and stop of such a jet flow can be achieved by providing a stopper for opening and closing the molten metal supply port 3 on the bottom wall 4 itself of the container 1, or by
Other stopper mechanisms may be used, and in this case, the gate plate 13 is not necessarily required.
以上の構成を有する非晶質金属ストリツプの製
造装置の操業態様につき説明するに、容器１内の
非晶質金属溶湯２は、高さ10cm乃至45cm（ヘツダ
圧0.05〜0.3Kg／cm2）に保たれ、容器底壁４の溶
湯供給口３、ゲート板１３の連通口１１およびノ
ズル５のスリツト開口６ａから噴出する。一方ス
リツト開口６ａと微小間隙を保つて配置されてい
る急冷用ロール１２は矢印Ｂの方向に高速回転し
ており、噴出した溶湯は急冷用ロール１２上で直
ちに冷却凝固して、非晶質金属ストリツプが連続
的に生産されるのである。 To explain the operation mode of the amorphous metal strip manufacturing apparatus having the above configuration, the amorphous metal molten metal 2 in the container 1 is heated to a height of 10 cm to 45 cm (header pressure 0.05 to 0.3 Kg/cm 2 ). The molten metal is maintained and ejected from the molten metal supply port 3 of the container bottom wall 4, the communication port 11 of the gate plate 13, and the slit opening 6a of the nozzle 5. On the other hand, the quenching roll 12, which is arranged with a small gap from the slit opening 6a, is rotating at high speed in the direction of arrow B, and the spouted molten metal is immediately cooled and solidified on the quenching roll 12, forming an amorphous metal. Strips are produced continuously.
以上述べた如く本発明によるノズル装置におい
ては、溶湯噴出ノズルをセラミツク材で構成する
とともに、該ノズルを通電加熱される発熱体を内
包した支持板中の孔部に嵌着保持せしめた構成で
あるため、ノズルは耐熱性に優れるが比較的加工
性の劣るセラミツク材の場合にも組立方式を採用
することなどと合わせてそのスリツトを全長にわ
たつて一定の溝巾に精度よく加工でき、支持板の
テーパー嵌合孔に密接して正しく嵌着保持させ得
るとともに取換、交換なども容易である他、ノズ
ル装置は支持板中の発熱体への通電加熱を介して
ノズル部分の操業前の間接的な予熱或は操業中の
温度降下防止ができるため、スリツトの溝巾に変
動を来たすことなく、製品ストリツプが広巾のも
のであつても安定・均質なストリツプが大量に連
続生産でき、従来の非晶質金属ストリツプの製造
装置に比しその生産性の向上には顕著なものがあ
る。 As described above, in the nozzle device according to the present invention, the molten metal spouting nozzle is made of ceramic material, and the nozzle is fitted and held in a hole in a support plate containing a heating element that is heated by electricity. Therefore, even when the nozzle is made of ceramic material, which has excellent heat resistance but is relatively difficult to work with, the assembly method can be used, and the slit can be precisely machined to a constant groove width over the entire length of the support plate. In addition to being able to fit and maintain the nozzle properly in close contact with the tapered fitting hole of the nozzle, it is also easy to replace and replace. Since it is possible to perform preheating or prevent temperature drops during operation, stable and homogeneous strips can be continuously produced in large quantities without causing fluctuations in the slit groove width, even if the product strip is wide. There is a remarkable improvement in productivity compared to equipment for manufacturing amorphous metal strips.
第１図は、本発明によるノズル装置を備えた非
晶質金属ストリツプの製造装置の要部断面図、第
２図はノズル部分の斜視図、第３図は他の実施例
を示すノズル部の一部側断面図、第４図イ，ロは
更に他の実施例のノズル部を示し、イは一部側断
面図、ロはイ図Ａ−Ａ線の断面図である。
１：容器、２：溶湯、３：供給口、４：底部、
５：ノズル、５ａ，５ｂ：分割片、６：スリツ
ト、６ａ：スリツト開口部、７，７′：支持板、
７ａ：貫通孔、８：孔部、９：発熱体、１０：電
力線、１１：連通孔、１２：急冷用ロール、１
３：ゲート板。
FIG. 1 is a sectional view of a main part of an amorphous metal strip manufacturing apparatus equipped with a nozzle device according to the present invention, FIG. 2 is a perspective view of the nozzle portion, and FIG. 3 is a nozzle portion showing another embodiment. 4A and 4B show a nozzle portion of still another embodiment, FIG. 4A is a partial side sectional view, and FIG. 4B is a sectional view taken along line A--A in FIG. 1: Container, 2: Molten metal, 3: Supply port, 4: Bottom,
5: nozzle, 5a, 5b: divided piece, 6: slit, 6a: slit opening, 7, 7': support plate,
7a: Through hole, 8: Hole, 9: Heating element, 10: Power line, 11: Communication hole, 12: Rapid cooling roll, 1
3: Gate board.
Claims (1)
が急冷用ロールの回転表面に近接するよう配置さ
れたセラミツク質ノズルを備え、このノズルに形
成したスリツト開口より溶湯を急冷用表面に連続
供給して急冷凝固させる非晶質金属ストリツプの
製造装置において、前記ノズルは耐熱材よりなる
支持板の孔部への先端方向抜け出しを係止した嵌
着保持にて支持させると共に、該支持板のノズル
嵌着保持孔部縁の内部には孔部長尺方向に沿つて
通電発熱体を埋設させたことを特徴とする非晶質
金属ストリツプ製造装置におけるノズル装置。 ２ ノズルがスリツト側壁面を含む２以上の分割
片の組合せよりなることを特徴とする特許請求の
範囲１に記載した非晶質金属ストリツプ製造装置
におけるノズル装置。 ３ ノズルと支持板孔部との嵌着保持形状が、ノ
ズル先端側に向つて細幅となる截頭台形状に形成
されていることを特徴とする特許請求の範囲１又
は２に記載した非晶質金属ストリツプ製造装置に
おけるノズル装置。 ４ 溶湯収容容器の供給口とノズルの連通がゲー
トによつて開閉可能に設けられていることを特徴
とする特許請求の範囲１乃至３のいずれかに記載
した非晶質金属ストリツプ製造装置におけるノズ
ル装置。[Claims] 1. A ceramic nozzle that communicates with the supply port of the molten metal storage container and is arranged so that its tip is close to the rotating surface of the quenching roll, and quenches the molten metal through a slit opening formed in this nozzle. In an apparatus for manufacturing an amorphous metal strip that is continuously supplied to a surface to be rapidly cooled and solidified, the nozzle is supported by a fitting holding that prevents the nozzle from coming out in the distal direction into the hole of a support plate made of a heat-resistant material; A nozzle device for an amorphous metal strip manufacturing apparatus, characterized in that a current-carrying heating element is embedded inside the edge of the nozzle fitting and holding hole of the support plate along the longitudinal direction of the hole. 2. A nozzle device for an amorphous metal strip manufacturing apparatus according to claim 1, wherein the nozzle is composed of a combination of two or more divided pieces including a slit side wall surface. 3. The non-contact device according to claim 1 or 2, characterized in that the fit and retention shape between the nozzle and the support plate hole is formed in a truncated shape that becomes narrower toward the tip of the nozzle. Nozzle device for crystalline metal strip manufacturing equipment. 4. A nozzle in an amorphous metal strip manufacturing apparatus according to any one of claims 1 to 3, characterized in that communication between the supply port of the molten metal container and the nozzle is provided so that it can be opened and closed by a gate. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4488081A JPS57159246A (en) | 1981-03-27 | 1981-03-27 | Nozzle device in producing device for amorphous metallic strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4488081A JPS57159246A (en) | 1981-03-27 | 1981-03-27 | Nozzle device in producing device for amorphous metallic strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57159246A JPS57159246A (en) | 1982-10-01 |
| JPS6319262B2 true JPS6319262B2 (en) | 1988-04-21 |
Family
ID=12703799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4488081A Granted JPS57159246A (en) | 1981-03-27 | 1981-03-27 | Nozzle device in producing device for amorphous metallic strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57159246A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59212150A (en) * | 1983-05-17 | 1984-12-01 | Mitsubishi Heavy Ind Ltd | Charging method in continuous casting |
| JPS62220252A (en) * | 1986-03-19 | 1987-09-28 | Nec Corp | Liquid rapid cooling device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5489923A (en) * | 1977-12-27 | 1979-07-17 | Matsushita Electric Ind Co Ltd | Apparatus for feeding molten material |
| JPS5527410A (en) * | 1978-08-14 | 1980-02-27 | Tdk Corp | Metal thin strip producing apparatus |
| JPS5592258A (en) * | 1979-01-02 | 1980-07-12 | Allied Chem | Method of casting uniform*glassy filament of metallic alloy and its device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5484304U (en) * | 1977-11-28 | 1979-06-14 |
-
1981
- 1981-03-27 JP JP4488081A patent/JPS57159246A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5489923A (en) * | 1977-12-27 | 1979-07-17 | Matsushita Electric Ind Co Ltd | Apparatus for feeding molten material |
| JPS5527410A (en) * | 1978-08-14 | 1980-02-27 | Tdk Corp | Metal thin strip producing apparatus |
| JPS5592258A (en) * | 1979-01-02 | 1980-07-12 | Allied Chem | Method of casting uniform*glassy filament of metallic alloy and its device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57159246A (en) | 1982-10-01 |
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