JPH035045A - Heating mold type continuous casting method - Google Patents
Heating mold type continuous casting methodInfo
- Publication number
- JPH035045A JPH035045A JP13622589A JP13622589A JPH035045A JP H035045 A JPH035045 A JP H035045A JP 13622589 A JP13622589 A JP 13622589A JP 13622589 A JP13622589 A JP 13622589A JP H035045 A JPH035045 A JP H035045A
- Authority
- JP
- Japan
- Prior art keywords
- dummy bar
- molten metal
- mold
- heating mold
- heating
- 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
- 238000010438 heat treatment Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000009749 continuous casting Methods 0.000 title claims description 10
- 239000002184 metal Substances 0.000 claims abstract description 51
- 229910052751 metal Inorganic materials 0.000 claims abstract description 51
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000005266 casting Methods 0.000 abstract description 8
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】 〔発明の利用分野〕 本発明は加熱鋳型式連続鋳造法に関するものである。[Detailed description of the invention] [Field of application of the invention] The present invention relates to a heated mold continuous casting method.
従来、溶湯を加熱鋳型を使用し、この加熱鋳型の出口部
の近傍において強固界面を横断方向に形成しながら連続
して引出し、冷却して鋳塊を製造する方法が知られてい
る。BACKGROUND ART Conventionally, there has been known a method of producing an ingot by using a heating mold, continuously drawing out the molten metal while forming a strong interface in the transverse direction near the outlet of the heating mold, and cooling the metal.
即ち、素材を加熱して溶湯とし、これをタンプッシュ内
に貯え、このタンプッシュ内の溶湯を加熱鋳型から連続
して引出し、冷却装置から噴出する冷却水によって冷却
され鋳塊とされるのである。かかる加熱鋳型式連続鋳造
方法においては、鋳造開始時においてダミーバー先端と
溶湯を溶着させ、然る後、ダミーバーを引出装置により
引き、溶湯が冷却されて鋳塊となってから以降この鋳塊
を引くことが行なわれている。In other words, the material is heated to form molten metal, which is stored in a tumbler, and the molten metal in the tumbler is continuously drawn out from the heating mold and cooled by cooling water jetted from a cooling device to form an ingot. . In such a heated mold type continuous casting method, the tip of the dummy bar and the molten metal are welded at the start of casting, and then the dummy bar is pulled by a drawing device, and after the molten metal has cooled and becomes an ingot, the ingot is pulled. things are being done.
この鋳造初期においてダミーバー先端と溶湯とを溶着さ
せる方法として、ダミーバー先端部を溶湯と直接接触さ
せ溶湯の持つ熱量でダミーバー先端を溶解させる方法が
例えば、特開昭６０１９１６４０号公報によって知られ
ている。As a method for welding the dummy bar tip and the molten metal in the early stage of casting, a method is known, for example, as disclosed in Japanese Patent Laid-Open No. 60191640, in which the dummy bar tip is brought into direct contact with the molten metal and the dummy bar tip is melted by the heat of the molten metal.
しかしながら、直径が０．５−３．０ｍｍの細線あるい
は、肉厚が０．３−３ ｍｍの管および複雑な断面形状
をもつものを鋳造する場合は、鋳型への入り口側が非常
に小さいため、溶湯の表面張力によって溶湯が鋳型のな
かに流れこまない。However, when casting thin wires with a diameter of 0.5-3.0 mm, tubes with a wall thickness of 0.3-3 mm, or objects with complex cross-sectional shapes, the entrance to the mold is very small. The surface tension of the molten metal prevents it from flowing into the mold.
また、金属の種類によっては直径４ｍｍの穴に入らない
ものもある。このような場合、溶湯を加圧して強制的に
鋳型の中に流れ込まず方法もあるが、装置を密閉構造に
し、加圧装置を設置しなければならない等、装置自体が
複雑になり、設備費用も高価なものとなる欠点がある。Also, depending on the type of metal, some metals cannot fit into a hole with a diameter of 4 mm. In such cases, there is a way to pressurize the molten metal so that it does not forcefully flow into the mold, but this requires a sealed structure and a pressurizing device, which makes the device itself complicated and increases equipment costs. It also has the disadvantage of being expensive.
本発明はこのような問題を解決するためになされたもの
であって、溶湯を加熱鋳型から連続的に引き出し、冷却
しなから鋳塊を製造する装置において、
（１）ダミーバーを加熱鋳型内に挿入し、鋳型の加熱に
より該ダミーバーの先端部を融解し、ダミーバーの溶湯
を鋳型の空間に充満させる第一の工程と、
（２）鋳型の溶湯入り口側に溶湯を供給し、鋳型内に充
満したダミーバーの溶湯の先端部と接触させる第二の工
程と、
（３）前記ダミーバーを冷却しながら引き出し連続鋳造
する工程よりなるものである。The present invention has been made to solve such problems, and is an apparatus for manufacturing an ingot by continuously drawing molten metal from a heating mold and cooling it before it cools down. a first step of inserting the dummy bar into the mold, melting the tip of the dummy bar by heating the mold, and filling the mold space with the molten metal of the dummy bar; (2) supplying the molten metal to the molten metal inlet side of the mold and filling the mold; a second step of bringing the dummy bar into contact with the tip of the molten metal; and (3) a step of drawing out the dummy bar while cooling it and performing continuous casting.
ダミーバーの先端部を加熱鋳型の内部で融解して溶湯と
してこれで加熱鋳型内に流入する溶湯を受けて接合する
ので、このダミーバーを引取ることによって簡単に鋳造
を開始することができる。The tip of the dummy bar is melted inside the heating mold to form molten metal, which receives and joins the molten metal flowing into the heating mold, so casting can be easily started by removing the dummy bar.
以下、第１図ないし第３図に基づき本発明による加熱鋳
型式連続鋳造法の一実施例を説明する。An embodiment of the hot mold continuous casting method according to the present invention will be described below with reference to FIGS. 1 to 3.
第１図は加熱鋳型式連続鋳造装置の要部を示す断面図で
あって、ヒーター１を有する加熱鋳型２は、溶湯５を貯
えるタンデイツシュ３の下部に取り付けられている。そ
して、この加熱鋳型内には、ダミーバー６の先端が挿入
される。FIG. 1 is a sectional view showing the main parts of a heating mold type continuous casting apparatus, in which a heating mold 2 having a heater 1 is attached to the lower part of a tundish 3 in which molten metal 5 is stored. Then, the tip of the dummy bar 6 is inserted into this heating mold.
具体的には、通常の運転時においては、加熱鋳型２の出
口端部近傍に凝固界面を保持するように冷却ノズル７の
位置を制御すると同時に鋳塊引き出し用ピンチローラ−
８の回転数を制御する。Specifically, during normal operation, the position of the cooling nozzle 7 is controlled so as to maintain the solidification interface near the exit end of the heating mold 2, and at the same time the pinch roller for drawing out the ingot is controlled.
Controls the rotation speed of 8.
そして運転開始時においては、第２図に示されるように
、ダミーバー６を加熱鋳型２と中子４の空間に挿入し、
加熱鋳型２の熱によりダミーバー６の先端部を溶解して
溶湯５ａとする。At the start of operation, the dummy bar 6 is inserted into the space between the heating mold 2 and the core 4, as shown in FIG.
The heat from the heating mold 2 melts the tip of the dummy bar 6 to form molten metal 5a.
この時クンディイッシュ３に供給された溶湯５は表面張
力により、鋳型２と中子４の間の空間には侵入せず、ダ
ミーバー６の先端部にて保持されている。At this time, the molten metal 5 supplied to the Kundiish 3 does not enter the space between the mold 2 and the core 4 due to surface tension, and is held at the tip of the dummy bar 6.
そして、さらにダミーバー６を加熱鋳型２内に挿入して
溶解することにより、このダミーバー６が溶解して形成
された溶湯５ａはフィン付き管、多重管などの断面を形
成している加熱鋳型２と中子４の間の複雑な断面空間に
充満する。Then, by further inserting the dummy bar 6 into the heating mold 2 and melting it, the molten metal 5a formed by the dummy bar 6 melts into the heating mold 2 forming the cross section of a finned tube, multi-tube, etc. It fills the complex cross-sectional space between the cores 4.
これと同時に溶湯５ａの液面は上昇し、第３図に示すよ
うに供給された溶湯５の面５ｂと接触してダミーバー６
の上方は溶湯５ａ、５ｂを介して溶湯５と連続して鋳造
を開始できる状態になる。At the same time, the liquid level of the molten metal 5a rises, and as shown in FIG.
The upper part of the molten metal 5 is in a state where it can start casting continuously with the molten metal 5 via the molten metals 5a and 5b.
このような方法により溶湯５ａはダミーバー６の先端部
に溶着され、その結果としてダミーバ−６を引き出すこ
とにより、連続して複雑な断面形状の鋳型塊を鋳造する
ことができるのである。By this method, the molten metal 5a is welded to the tip of the dummy bar 6, and as a result, by pulling out the dummy bar 6, it is possible to continuously cast a mold block having a complicated cross-sectional shape.
以上から明らかなように、本発明による鋳造法では、溶
湯を加熱鋳型から連続して引出し、冷却して鋳塊を製造
する連続鋳造装置において、（ａ）ダミーバーの先端を
加熱鋳型内に挿入し、（ｂ）このダミーバーの先端を加
熱鋳型内で溶解される範囲に冷却位置を調整し、
（Ｃ）前記加熱鋳型内のダミーバーの溶湯と供給される
溶湯と接触させ、該ダミーバーを連続的に鋳型より引き
出すように構成している。As is clear from the above, in the casting method according to the present invention, in a continuous casting apparatus that continuously draws molten metal from a heating mold and cools it to produce an ingot, (a) the tip of a dummy bar is inserted into the heating mold. (b) Adjust the cooling position of the tip of the dummy bar to a range where it can be melted within the heating mold, (C) Bring the molten metal of the dummy bar in the heating mold into contact with the supplied molten metal, and continuously cool the dummy bar. It is configured to be pulled out from the mold.
前記のように、本発明においてはダミーバーの先端部を
加熱鋳型内で溶解することによってタンプッシュ内の溶
湯と連続させ、この溶湯を加熱鋳型と中子の間の空間に
引き出すことができるので、非常に簡単な設備を使用し
て鋳造を開始することができる。As mentioned above, in the present invention, the tip of the dummy bar is melted in the heating mold to make it continuous with the molten metal in the tongue pusher, and this molten metal can be drawn into the space between the heating mold and the core. Casting can be started using very simple equipment.
本発明は、特に加熱鋳型と中子の間の空間にタンプッシ
ュ内の溶湯を流れ込まずことが困難な薄肉の金属管や細
線を容易に鋳造することができる。The present invention can easily cast thin-walled metal tubes and thin wires in which it is difficult to prevent the molten metal in the tamp push from flowing into the space between the heating mold and the core.
第１図は本発明による加熱鋳型式連続鋳造法を実施する
装置の概略図、第２図はダミーパーの先端部が溶融して
いる状態を示す図、第３図はダミーバーの溶湯とタンプ
ッシュ内の溶湯が接続された状態を示す図である。
１・・・ヒーター ２・・・加熱鋳型３・・・タン
プッシュ ４・・・中子
５・・・溶湯
５ａ・・・ダミーバーの先端の溶湯
５ｂ・・・タンプッシュ内の溶湯
６・・・ダミーパー ７・・・冷却ノズル８・・・ピ
ンチローラ−Figure 1 is a schematic diagram of an apparatus for carrying out the heated mold continuous casting method according to the present invention, Figure 2 is a diagram showing the state in which the tip of the dummy bar is melted, and Figure 3 is a diagram showing the molten metal of the dummy bar and the interior of the tump push. It is a figure showing the state where molten metal of is connected. 1... Heater 2... Heating mold 3... Tongue push 4... Core 5... Molten metal 5a... Molten metal at the tip of the dummy bar 5b... Molten metal in tongue push 6... Dummy par 7... Cooling nozzle 8... Pinch roller
Claims (1)
造する連続鋳造装置において、 ダミーバーの先端を加熱鋳型内に挿入し、該ダミーバー
の先端を加熱鋳型内で溶解される範囲に冷却位置を調整
し、前記加熱鋳型内のダミーバーの溶湯と供給される溶
湯と接触させ、該ダミーバーを連続的に鋳型より引き出
すことを特徴とする加熱鋳型式連続鋳造法。[Claims] In a continuous casting device that continuously draws molten metal from a heating mold and cools it to produce an ingot, the tip of a dummy bar is inserted into the heating mold, and the tip of the dummy bar is melted in the heating mold. A heated mold type continuous casting method, characterized in that the cooling position is adjusted to a range where the dummy bar is heated, the molten metal of the dummy bar in the heated mold is brought into contact with the supplied molten metal, and the dummy bar is continuously drawn out from the mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13622589A JPH035045A (en) | 1989-05-31 | 1989-05-31 | Heating mold type continuous casting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13622589A JPH035045A (en) | 1989-05-31 | 1989-05-31 | Heating mold type continuous casting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH035045A true JPH035045A (en) | 1991-01-10 |
Family
ID=15170218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13622589A Pending JPH035045A (en) | 1989-05-31 | 1989-05-31 | Heating mold type continuous casting method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH035045A (en) |
-
1989
- 1989-05-31 JP JP13622589A patent/JPH035045A/en active Pending
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