JPS60127057A - Continuous casting device - Google Patents
Continuous casting deviceInfo
- Publication number
- JPS60127057A JPS60127057A JP23474083A JP23474083A JPS60127057A JP S60127057 A JPS60127057 A JP S60127057A JP 23474083 A JP23474083 A JP 23474083A JP 23474083 A JP23474083 A JP 23474083A JP S60127057 A JPS60127057 A JP S60127057A
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- crucible
- molten metal
- billet
- top end
- 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.)
- Granted
Links
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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
-
- 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
- B22D11/10—Supplying or treating molten metal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】 本発明は連続鋳造装置の改良に関する。[Detailed description of the invention] The present invention relates to improvements in continuous casting equipment.
従来の連続鋳造装置は加熱溶解炉に水冷鋳型を連結し、
溶解ルツボ内で溶解した溶湯(溶融金属)を直接に水冷
鋳型に紡出して鋳型の外側より鋳型を通し直接に冷却し
凝固ヒしめるものである。Conventional continuous casting equipment connects a water-cooled mold to a heating melting furnace.
The molten metal (molten metal) melted in the melting crucible is directly spun into a water-cooled mold, cooled directly through the mold from the outside of the mold, and solidified.
しかるに上記従来装置においては、次のような欠点があ
る。However, the conventional device described above has the following drawbacks.
■溶湯に介在する不純物、酸化物及びガス成分が凝固の
段階でビレット(鋳塊)の中心部に集合し、内部欠陥の
原因となる。■ Impurities, oxides, and gas components present in the molten metal gather in the center of the billet (ingot) during the solidification stage, causing internal defects.
■鋳型の外部と内部との温度差が大きいために、溶湯の
凝固進行が不均一となり、搬割れや収縮孔の発生原因と
なる。■Due to the large temperature difference between the outside and inside of the mold, the solidification of the molten metal becomes uneven, causing cracks and shrinkage pores.
■ビレットを鋳型から引出す際にビレットと鋳型との間
に常に摩擦抵抗が生じ、肌あれや、傷、割れ等が発生し
やすい。■When pulling the billet out of the mold, there is always frictional resistance between the billet and the mold, which tends to cause rough skin, scratches, cracks, etc.
■スターティングロッドが冷却鋳型を介して冷却されて
いるため、その熱伝導により注湯部が凝固して固着し、
初期の引出しができなくなることがある。■Since the starting rod is cooled through the cooling mold, the pouring part solidifies and sticks due to heat conduction.
Initial withdrawals may not be possible.
上記欠点を解消Vんとするため第2図に示す如く、加熱
溶解炉(1)の鋳型スリーブ(3)の周囲及び溶解ルツ
ボく2)の底部周辺に電気的導体よりなる発熱体(9)
を設けた改良装置が特開昭55−114446号公報に
開示されている。In order to eliminate the above drawbacks, as shown in Figure 2, a heating element (9) made of an electrical conductor is installed around the mold sleeve (3) of the heating melting furnace (1) and around the bottom of the melting crucible 2).
An improved device provided with this is disclosed in Japanese Patent Application Laid-open No. 114446/1983.
しかしながら上記改良装置においては、加熱炉に発熱体
(9)を別途に装備しなければなら′ず、経済的でない
とともにスリーブ(3)の注潟1部分がルツボ(2)の
底面に間口しているため、ルツボ壁に沿って流下する不
純物等がスリーブ(3)に混入しや1く、必り゛しも品
質の向上を望めないものである。However, in the above-mentioned improved device, it is necessary to separately equip the heating furnace with a heating element (9), which is not economical, and the lagoon 1 portion of the sleeve (3) is opened to the bottom of the crucible (2). Therefore, impurities flowing down along the crucible wall are likely to get mixed into the sleeve (3), and it is not always possible to expect an improvement in quality.
本発明は断る従来事情に鑑み、その不具合を解消づべく
、鋳型スリーブの上端部を溶解ルツボ内に適宜長さ延長
状突出させ、該突出部分をルツボ内の溶湯温度により加
熱せしめることによっ゛C1高品質の鋳造品を経済的且
つ作業性よく製造し得る装置を提供せんとづることを目
的とする。In view of the conventional circumstances, and in order to solve the problem, the present invention is made by projecting the upper end of the mold sleeve into the melting crucible by an appropriate length, and heating the projecting part by the temperature of the molten metal in the crucible. C1 The purpose of this invention is to provide an apparatus that can manufacture high-quality cast products economically and with good workability.
本発明を図面により説明すれば、第1図において、(1
)は誘導加熱溶解炉、(2)は溶解ルツボ、(3)は鋳
型スリーブ、(4)は誘導コイル、(5)は水冷ジャケ
ラ1〜、(6)は断熱材、(7)はスターティングロッ
ド、(A>は溶湯、(a )はビレット(鋳塊)である
。To explain the present invention with reference to the drawings, in FIG.
) is an induction heating melting furnace, (2) is a melting crucible, (3) is a mold sleeve, (4) is an induction coil, (5) is a water-cooled jacket 1~, (6) is a heat insulator, and (7) is a starting material. The rod, (A>) is the molten metal, and (a) is the billet (ingot).
鋳型スリーブ(3)はルツボ(2)の底部を貫通状に植
設し、その上端部(3a)をルツボ(2)内へ適宜長さ
延長状に突出さ仕、上端を注湯口(3′)とする。The mold sleeve (3) is installed so as to pass through the bottom of the crucible (2), and its upper end (3a) protrudes into the crucible (2) by an appropriate length, and the upper end is connected to the pouring spout (3'). ).
又、鋳型スリーブ(3)は水冷ジVクット(5)に挿着
して該ジャケラi〜(5)により外周より冷却されるよ
うにし、下端を、誘出口(3′′)とする。Further, the mold sleeve (3) is inserted into a water-cooled di-V cut (5) so that it is cooled from the outer periphery by the jackets i to (5), and its lower end is used as an outlet (3'').
上記ルツボ(2)は、その下部構造を図中2点破線で示
づように傾斜面とすることもよく、これにより溶湯の残
量を減少せしめることができる。The lower structure of the crucible (2) may have an inclined surface as shown by the two-dot broken line in the figure, thereby reducing the amount of remaining molten metal.
溶解ルツボ(2)と水冷ジャケラh(5)との間には断
熱材(6)を介在させ、両者間の熱伝導を抑制さゼるよ
うにする。A heat insulating material (6) is interposed between the melting crucible (2) and the water-cooled jacket h (5) to suppress heat conduction between the two.
スターティングロッド(7)は鋳造開始の初期にはスリ
ーブ(3)の冷却帯の中に位置させて(図の2点破線位
置)、スリーブ〈3)の栓としての機能を有し、このロ
ッド(7)の先端は凝固金属が固着保持される形状とし
、他方部はピンチロール(10)により引出し可能に係
合せしめる。The starting rod (7) is positioned in the cooling zone of the sleeve (3) at the beginning of casting (the position indicated by the two-dot broken line in the figure), and has the function of a plug for the sleeve (3). The tip of (7) has a shape that allows the solidified metal to be firmly held, and the other part is engaged with the pinch roll (10) so that it can be pulled out.
而して本発明装置は、前記スターティングロッド(7)
をスリーブ(3)内に挿入しておき、誘導コイル(4)
によってルツボ(2)内の被溶解物を溶解きしめた後に
、ピンチロール(10)をスリーブ上端部(3a)内の
溶m(A’)の凝固速度に合ヒて引出すことにより連続
してビレット<a >を鋳造することができる。Therefore, the device of the present invention has the above-mentioned starting rod (7).
is inserted into the sleeve (3), and the induction coil (4) is inserted into the sleeve (3).
After the material to be melted in the crucible (2) is melted and tightened, the pinch roll (10) is pulled out at a rate that matches the solidification rate of the melt m (A') in the upper end of the sleeve (3a) to continuously form a billet. <a> can be cast.
上記スリーブ上端部(3a)内の溶湯(A′)はルツボ
〈2)内の溶1(A)により加温されており、引出しに
より順次に冷却される。The molten metal (A') in the sleeve upper end (3a) is heated by the molten metal 1 (A) in the crucible (2), and is sequentially cooled by being drawn out.
次に実施例を示す。Next, examples will be shown.
ルツボ(2)及びスリーブ(3)を黒鉛製、水冷ジャケ
ット(5)を銅製、スターティングロッド(7)を軟鋼
製として装置を構成し、△l−8i(1%)合金10K
(+をルツボ(2)内で溶解させ連続鋳造した。又、ス
リーブ上端部(3′)の突出長さを5Qn+mとしたく
溶湯高さは300mm>。The device is constructed by making the crucible (2) and sleeve (3) made of graphite, the water cooling jacket (5) made of copper, and the starting rod (7) made of mild steel.
(+) was melted in the crucible (2) and continuously cast.Also, the protruding length of the upper end (3') of the sleeve was 5Qn+m, and the height of the molten metal was 300mm>.
溶湯温度がルツボ(2)の中央部で680℃の時点で、
溶湯の冷却速度とビレットの引出し速度が均衡するよう
に鋳造したところ、溶湯(Δ)上面部がスリーブ(3)
の注湯口(3′)に略達するまで、凝固、破断及び肌あ
れや傷がなく表面がなめらかで、酸化物等の混入がない
ビレッ1〜を得た。When the molten metal temperature reaches 680℃ at the center of the crucible (2),
When casting was carried out so that the cooling rate of the molten metal and the drawing speed of the billet were balanced, the upper surface of the molten metal (Δ) became the sleeve (3).
A billet 1~ was obtained which had a smooth surface without coagulation, breakage, roughness or scratches, and was free from contamination with oxides etc. until approximately reaching the pouring port (3').
尚、ビレットの引出し速度は、金属、合金の種類、ビレ
ッl〜の直径に応じて設定する。Note that the billet drawing speed is set depending on the metal, the type of alloy, and the diameter of the billet.
上記装置によれば、ビレット(a )は直径lQmmφ
〜1501111+1φの鋳造が可能であった。According to the above device, the billet (a) has a diameter of lQmmφ
Casting of ~1501111+1φ was possible.
又、加熱方法は1000℃以下の融点を有する金属、合
金の場合は誘導加熱炉以外の電気抵抗加熱でも容易に鋳
造可能である。Further, in the case of a metal or alloy having a melting point of 1000° C. or less, it can be easily cast by electric resistance heating other than an induction heating furnace.
(比較例)
上記実施例装置において、鋳型スリーブ(3)の注湯口
く3′)をルツボ(2)底面に開口させた構造、すなわ
ち、スリーブ上端部(3a)をルツボ内に突出さけない
装置を用いて、Al−8i (1%)の合金10K(l
を溶解し実施例と同一の温度条件鋳造を開始した。(Comparative Example) In the apparatus of the above embodiment, the pouring port 3' of the mold sleeve (3) is opened at the bottom of the crucible (2), that is, a device that prevents the upper end of the sleeve (3a) from protruding into the crucible. Alloy 10K (l) of Al-8i (1%) was prepared using
was melted and casting was started under the same temperature conditions as in the example.
その結果は、ルツボ底部のスリーブ注湯口が凝固し、ビ
レットを引出すことができなかった。As a result, the sleeve pouring port at the bottom of the crucible solidified and the billet could not be drawn out.
そこで、更に誘導加熱を高出力にし、溶湯温度を一トげ
、スリーブ注湯口近くの温度をAl−8i (1%)合
金の融点約650℃直上に上げるためにはルツボの中央
部の温度を750℃〜800℃まで上げざるを得なくな
る。このように融点よりかなり高い温度に上げて無理な
状態で鋳造すると、ビレットの表面肌があれ、ガス吸収
や内部外部の温度差によるSiの偏析が起り、又、構造
的に酸化物の巻込みが多く好ましくないビレッ1へか得
られlC0
本発明は叙上の如く構成したので、次の如き効果を有す
る。Therefore, in order to further increase the output of induction heating, raise the temperature of the molten metal, and raise the temperature near the sleeve pouring port to just above the melting point of Al-8i (1%) alloy, approximately 650℃, the temperature at the center of the crucible must be increased. There is no choice but to raise the temperature to 750°C to 800°C. If the billet is heated to a temperature much higher than the melting point and cast under unreasonable conditions, the billet will have rough surface texture, gas absorption and temperature differences between the inside and outside will cause Si segregation, and structural problems such as oxide entrainment will occur. Since the present invention is configured as described above, it has the following effects.
■鋳型スリーブの上端部を溶湯温度で加熱覆ることによ
り鋳型に接触するビレットの表面と内部の温度差が小さ
いため偏析がなく、ビレッ1−を鋳型スリーブから引出
す際にも摩擦抵抗が小さく、表面のなめらかなビレット
が得られる。■ By heating and covering the upper end of the mold sleeve with the temperature of the molten metal, the temperature difference between the surface and the inside of the billet that comes into contact with the mold is small, so there is no segregation, and when the billet is pulled out of the mold sleeve, there is little frictional resistance, and the surface A smooth billet is obtained.
■鋳型スリーブの注入口が常に溶湯中に浸された状態で
溶湯が注入されるため、酸化物を巻込むことがなく、金
属及び合金を有する融点直上の低い温度で鋳造可能なた
め、溶湯のガス吸収も少なく、従ってビレットの脱ガス
効果が大きい。■Since the molten metal is injected while the injection port of the mold sleeve is always immersed in the molten metal, oxides are not involved, and metals and alloys can be cast at low temperatures just above their melting points. Gas absorption is also small, and therefore the degassing effect of the billet is large.
■スターティングロッドによる初期め引出し及びビレッ
トの直径の変化に対する引出しのコントロールがやり易
い。■Easy to control initial withdrawal using the starting rod and withdrawal due to changes in billet diameter.
■ルツボ壁に沿って底部へ流下Jる酸化物、不純物等が
スリーブ注湯口より浸入することがなく高品質である。■High quality is achieved as oxides, impurities, etc. that flow down to the bottom along the crucible wall do not enter through the sleeve pouring port.
■ルツボ内の溶湯湿度を利用づるので、別途に発熱体を
設ける必要がなく経済的である。■Since the humidity of the molten metal inside the crucible is used, there is no need to provide a separate heating element, making it economical.
第1図は本発明装置の断面図、第2図は公知装置の断面
図である。
図中、(1)は溶解炉、(2)は溶解ルツボ、(3)は
鋳型スリーブ、(3a)はスリーブ上端部(突出部分)
、(A)(A’ )は溶湯、<a >はビレットである
。FIG. 1 is a sectional view of the device of the present invention, and FIG. 2 is a sectional view of a known device. In the figure, (1) is the melting furnace, (2) is the melting crucible, (3) is the mold sleeve, and (3a) is the upper end of the sleeve (protruding part).
, (A) (A') is the molten metal, and <a> is the billet.
Claims (1)
連続鋳造装置において、鋳型スリーブの上端部を溶解ル
ツボ内に適宜長さ延長状突出さけ、該突出部分をルツボ
内の溶湯温度により加熱せしめることを特徴とする連続
鋳造装置。In a continuous casting device in which a mold sleeve is connected to a melting crucible of a heating melting furnace, the upper end of the mold sleeve is projected into the melting crucible by an appropriate length, and the projected portion is heated by the temperature of the molten metal in the crucible. Features continuous casting equipment.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23474083A JPS60127057A (en) | 1983-12-12 | 1983-12-12 | Continuous casting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23474083A JPS60127057A (en) | 1983-12-12 | 1983-12-12 | Continuous casting device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60127057A true JPS60127057A (en) | 1985-07-06 |
JPH0218180B2 JPH0218180B2 (en) | 1990-04-24 |
Family
ID=16975612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23474083A Granted JPS60127057A (en) | 1983-12-12 | 1983-12-12 | Continuous casting device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60127057A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0249158A2 (en) * | 1986-06-10 | 1987-12-16 | ASABA Co., Ltd. | A method for continuous casting of metal and an apparatus therefor |
JP2007196264A (en) * | 2006-01-26 | 2007-08-09 | Fujikura Ltd | Method for producing rough drawn wire and device therefor |
CN104138922A (en) * | 2014-06-25 | 2014-11-12 | 湖南大学 | Production equipment and process of copper-clad aluminum bimetal composite wire rod |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50131626A (en) * | 1974-04-05 | 1975-10-17 | ||
JPS53149126A (en) * | 1977-06-01 | 1978-12-26 | Ishikawajima Harima Heavy Ind | Drawing out method and apparatus for casted segment in continuous casting apparatus |
JPS55114446A (en) * | 1979-02-27 | 1980-09-03 | Tanaka Kikinzoku Kogyo Kk | Continuous casting device |
JPS58132358A (en) * | 1981-12-24 | 1983-08-06 | ギユンタ−・アルトラント | Casting nozzle for continuous casting device |
JPS58154446A (en) * | 1982-03-06 | 1983-09-13 | Daido Steel Co Ltd | Continuous casting method of steel and vessel for molten metal for said method |
-
1983
- 1983-12-12 JP JP23474083A patent/JPS60127057A/en active Granted
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50131626A (en) * | 1974-04-05 | 1975-10-17 | ||
JPS53149126A (en) * | 1977-06-01 | 1978-12-26 | Ishikawajima Harima Heavy Ind | Drawing out method and apparatus for casted segment in continuous casting apparatus |
JPS55114446A (en) * | 1979-02-27 | 1980-09-03 | Tanaka Kikinzoku Kogyo Kk | Continuous casting device |
JPS58132358A (en) * | 1981-12-24 | 1983-08-06 | ギユンタ−・アルトラント | Casting nozzle for continuous casting device |
JPS58154446A (en) * | 1982-03-06 | 1983-09-13 | Daido Steel Co Ltd | Continuous casting method of steel and vessel for molten metal for said method |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0249158A2 (en) * | 1986-06-10 | 1987-12-16 | ASABA Co., Ltd. | A method for continuous casting of metal and an apparatus therefor |
JP2007196264A (en) * | 2006-01-26 | 2007-08-09 | Fujikura Ltd | Method for producing rough drawn wire and device therefor |
CN104138922A (en) * | 2014-06-25 | 2014-11-12 | 湖南大学 | Production equipment and process of copper-clad aluminum bimetal composite wire rod |
CN104138922B (en) * | 2014-06-25 | 2016-01-06 | 湖南大学 | A kind of production equipment and process of copper cover aluminum bimetallic composite wire rod |
Also Published As
Publication number | Publication date |
---|---|
JPH0218180B2 (en) | 1990-04-24 |
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