JPS61193743A - Continuous casting device - Google Patents
Continuous casting deviceInfo
- Publication number
- JPS61193743A JPS61193743A JP3150885A JP3150885A JPS61193743A JP S61193743 A JPS61193743 A JP S61193743A JP 3150885 A JP3150885 A JP 3150885A JP 3150885 A JP3150885 A JP 3150885A JP S61193743 A JPS61193743 A JP S61193743A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molten metal
- continuous casting
- forming
- heat insulating
- 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
Landscapes
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】 本発明は、金属の連続鋳造装置に関する。[Detailed description of the invention] The present invention relates to a continuous metal casting apparatus.
特に一方向凝固が容易に得ることができる装置に関する
。In particular, it relates to a device that can easily achieve unidirectional solidification.
金属の連続鋳造においては、従来装置によれば樹枝状組
織が同方向に成長して得られる柱状晶が。In continuous casting of metals, conventional equipment produces columnar crystals obtained by dendritic structures growing in the same direction.
鋳型側壁より鋳物中央方向に成長し、中央部に等軸晶が
成長する場合が多い。 また異物等が錆物内部に蓄積さ
れ、内部欠陥が多く生じる。It grows from the side wall of the mold toward the center of the casting, and equiaxed crystals often grow in the center. Further, foreign matter etc. accumulate inside the rusted material, resulting in many internal defects.
このため塑性加工時に、柱状晶成長方向に圧縮された場
合に２合金によっては９粒界割れを生じ好ましくない。For this reason, when compressed in the direction of columnar crystal growth during plastic working, depending on the two alloys, 9-grain boundary cracking may occur, which is undesirable.
この欠点を解決するために、特公昭５５−４６２６５の
ように、鋳型を加熱し、鋳型出口部で凝固させる装置が
提案されているが、その運転においてブレークアウトを
起こし易く操業上難点があった。 また鋳型自体を加熱
するためヒータを鋳型内に内蔵させるものであり、好ま
しい構造ではなかった。In order to solve this problem, a device has been proposed as in Japanese Patent Publication No. 55-46265, which heats the mold and solidifies it at the mold outlet, but it is easy to cause breakouts during operation, making it difficult to operate. . Furthermore, a heater was built into the mold to heat the mold itself, which was not a desirable structure.
即ち機器内電線等細物の導電用材としてのロッド等を製
造する際に要求される材質の項目である１、異物、ピン
ホール等内部欠陥の少ないこと。In other words, the material requirements for manufacturing rods and the like as conductive materials for thin objects such as electric wires in equipment are as follows: 1. The material must have few internal defects such as foreign objects and pinholes.
２、長尺物で均一な品質をもつもので、偏析の少ないこ
と。2. It must be long and of uniform quality, with little segregation.
３、柱状晶が、ロッドの中心に向かって成長しないこと
。3. Columnar crystals do not grow toward the center of the rod.
の条件を満たす製品を得ることが出来、さらに鋳造の際
に必要な項目である安全性を有することを満たす連続鋳
造装置が、要求されている。There is a need for a continuous casting apparatus that can obtain products that meet the following conditions, and that also has safety, which is a necessary item during casting.
本発明は１以上の要望を満たすものである。The present invention satisfies one or more needs.
即ち、鋳型の一端は、溶融金属により加熱され、他端は
、冷却構造体に接した構造であって、鋳型の一端及び他
端は、少なくとも熱良導体とし、その境界部を断熱構造
とする連続鋳造装置である。That is, one end of the mold is heated by molten metal, and the other end is in contact with a cooling structure, and one end and the other end of the mold are at least a good thermal conductor, and the boundary part is a continuous structure with an insulating structure. It is a casting device.
以下本発明について、詳細に述べる。The present invention will be described in detail below.
本発明装置が適用される金属は、銅、金、銀、アルミニ
ウム、亜鉛、鉛、スズ等およびこれらの合金等である。Metals to which the device of the present invention is applied include copper, gold, silver, aluminum, zinc, lead, tin, and alloys thereof.
特に熱良導体のものが好ましい。In particular, those with good thermal conductivity are preferred.
本発明の鋳型の一端は、溶融金属浴により加熱されてい
る。 特に溶融金属浴に突出させることにより溶融金属
の熱により鋳型をより加熱することができる。 この事
により別の加熱手段を用いずに過剰加熱することなく溶
湯の入口側で凝固面を保持できる。 また同時に、一方
向凝固を可能とし、結晶粒の非常に大きい鋳造組織を得
ることができるものである。One end of the mold of the present invention is heated by a molten metal bath. In particular, by protruding into the molten metal bath, the mold can be further heated by the heat of the molten metal. This makes it possible to maintain a solidified surface on the inlet side of the molten metal without using a separate heating means or overheating. At the same time, it enables unidirectional solidification and allows a cast structure with very large crystal grains to be obtained.
さらに鋳型の他端は、冷却構造体に接した構造である。Furthermore, the other end of the mold is in contact with the cooling structure.
鋳型の一方を加熱し他端を冷却することにより一方向
凝固を好ましく行い得るものである。One-way solidification can be preferably performed by heating one end of the mold and cooling the other end.
また同時に鋳型出口部で溶融金属は、全く存在しない。At the same time, no molten metal is present at the mold outlet.
これによりブレークアウトのない連続鋳造を可能とす
るものである。This enables continuous casting without breakouts.
また更に、鋳型の一端及び他端は、少なくとも熱良導体
とし、その境界部は、断熱構造とする。Furthermore, at least one end and the other end of the mold are made to be good thermal conductors, and the boundary portion thereof is made to have a heat insulating structure.
このことにより、より効率的に一方向凝固を可能とする
ものである。 温度勾配が、急傾斜となるためである。This enables more efficient unidirectional solidification. This is because the temperature gradient becomes steep.
熱良導体の耐火物としては１例えば、窒化珪素、炭化
珪素、黒鉛等である。 断熱構造としては、断熱性の耐
火材であるＡｌ２Ｏ３゜ＭｇＯ，ＣａＯ等のものを配置
するかあるいは、さらにその構造体中に空洞を設はガス
等を存在させるものとする。 ガスとしては、空気等で
良く、熱の良導体でないものほど良い。 さらに断熱構
造体の位置は、極力溶融金属側に配置し、凝固界面をよ
り溶融金属側にすることが好ましい。より一方向凝固を
容易にするためである。 さらに、鋳型の外部にも断熱
構造体を上記同様に設ける事がより好まし。Examples of refractories with good thermal conductivity include silicon nitride, silicon carbide, and graphite. For the heat insulating structure, a heat insulating refractory material such as Al2O3°MgO, CaO, etc. is arranged, or a cavity is further provided in the structure to allow gas or the like to exist. The gas may be air or the like, and the less it is a good conductor of heat, the better. Further, it is preferable that the heat insulating structure is placed as close to the molten metal as possible so that the solidification interface is closer to the molten metal. This is to facilitate unidirectional solidification. Furthermore, it is more preferable to provide a heat insulating structure on the outside of the mold in the same manner as above.
また、鋳型の冷却構造体の溶融金属浴側から、鋳型壁面
に不活性ガス及び又は中性ガスを吹き込む構造とする。Further, the structure is such that inert gas and/or neutral gas is blown into the mold wall surface from the molten metal bath side of the mold cooling structure.
この構造とすることにより、凝固した金属の偏析を防
止し、溶融金属の温度を均一に保持するものである。
上記ガスは、少なくとも溶融金属の鋳型への入口部の溶
体を攪拌混合する役割をなすものである。 冷却構造体
に接っした鋳型の部分より、少くとも鋳型の入口側から
、装入できる構造であることが好ましい。This structure prevents segregation of the solidified metal and maintains a uniform temperature of the molten metal.
The gas serves at least to stir and mix the solution at the entrance of the molten metal to the mold. It is preferable that the structure allows charging from at least the inlet side of the mold rather than the part of the mold that is in contact with the cooling structure.
さらに本発明に用いる鋳造装置は、溶解炉又は保持炉の
下部に鋳型を設けたもの、あるいは、溶解炉又は保持炉
の側壁機に鋳型を設けたものであっても良い。Furthermore, the casting apparatus used in the present invention may be one in which a mold is provided at the lower part of a melting furnace or a holding furnace, or one in which a mold is provided in a side wall machine of a melting furnace or a holding furnace.
本発明装置を用いるに適した製品の大きさとしては、あ
まり大径のものは、適さない。 例えば、直径が２０
ｍ ｍ以下の大きさのものである。 これは、鋳型の温
度が、溶融金属あるいは半固体金属に伝わる範囲である
ことが好ましい一方向凝固を可能にするためである。Regarding the size of products suitable for use with the device of the present invention, products with very large diameters are not suitable. For example, the diameter is 20
The size is less than mm. This is because the temperature of the mold is preferably within a range that can be transmitted to the molten metal or semi-solid metal in order to enable unidirectional solidification.
以上のように本発明を実施することにより、以下の効果
を得ることができる。By implementing the present invention as described above, the following effects can be obtained.
（１） ブレークアウトの危険がなく、一方向凝固組織
の長尺金属塊を得ることができる。(1) A long metal lump with a unidirectionally solidified structure can be obtained without the risk of breakout.
（２）異物の混入、ピンホールがない長尺金属塊を得る
ことができる。(2) It is possible to obtain a long metal lump that is free from foreign matter and pinholes.
（３）温度勾配が、急であるため一方向凝固の鋳塊を容
易に得ることができる。(3) Since the temperature gradient is steep, a unidirectionally solidified ingot can be easily obtained.
（４）偏析が少ない一方向凝固の鋳塊を得ることができ
る。(4) A unidirectionally solidified ingot with less segregation can be obtained.
（５）鋳塊表面が、極めて滑らかである。(5) The surface of the ingot is extremely smooth.
（６）一方向凝固のため、加工性が極めて良い。(6) Due to unidirectional solidification, workability is extremely good.
（７）結晶粒の大きい長尺金属塊を得ることができるた
め、機器内電線（例えば、オーディオ機器用電線）等の
細物の導電線用材としてのロッドを製造するために適す
る。(7) Since a long metal lump with large crystal grains can be obtained, it is suitable for manufacturing rods as materials for thin conductive wires such as wires for internal equipment (for example, wires for audio equipment).
実施例１ 第１図に示した装置を用いて実施した。Example 1 The experiment was carried out using the apparatus shown in FIG.
溶解炉（２）底部側壁に取付けた１１ｍｍ径の孔を有す
るグラファイト鋳型（６）の中間付近（１１）に中空の
アルミナ耐火物を配置し、断熱構造体とし、さらに該鋳
型の外側にも上記同様の断熱構造体（１２）を設けた。A hollow alumina refractory is placed near the middle (11) of a graphite mold (6) with a hole of 11 mm diameter attached to the bottom side wall of the melting furnace (2) to form a heat insulating structure, and the above mold is also placed on the outside of the mold. A similar insulation structure (12) was provided.
その鋳型に外径１０．６ｍｍの純銅棒の端を溶融金属
（１）供給側より１ｃｍ内側に位置させる。The end of a pure copper rod with an outer diameter of 10.6 mm was placed in the mold 1 cm inside from the molten metal (1) supply side.
炉には、溶融された純銅５０ｋｇを入れ１２５０℃に保
持した。 溶融金属供給側と反対側に設 置された冷却
構造体（５）に８１／分の水を通じ、純銅の凝固位置を
鋳型内の溶融金属供給側に設定した。50 kg of molten pure copper was placed in the furnace and maintained at 1250°C. Water was passed through the cooling structure (5) at a rate of 81/min installed on the side opposite to the molten metal supply side, and the solidification position of the pure copper was set on the molten metal supply side in the mold.
グラファイト鋳型に、第１図に示すとと＜Ｎ。In the graphite mold, as shown in FIG.
ガスを（４）より導入し、溶融金属中へ（１０）の位置
より噴出させた。 溶融金属を攪伴し、温度および金属
成分のバラツキをなくす働きをした。Gas was introduced from (4) and ejected into the molten metal from position (10). It worked to stir the molten metal and eliminate variations in temperature and metal composition.
尚Ｎ２ガスが、溶融金属側のみに放出されるよう、ガス
シール（８）を設けた。A gas seal (8) was provided so that N2 gas was released only to the molten metal side.
凝固したロッドを３３ｍｍ／分でピンチロール（７）に
より、連続的に引抜いた。The solidified rod was continuously pulled out using pinch rolls (7) at 33 mm/min.
この結果得られた純銅は、一方向凝固のものであり、結
晶粒が極めて大きいものであった。The resulting pure copper was unidirectionally solidified and had extremely large crystal grains.
実施例２
第２図の装置においても、Ｎ２ガスの吹き込み位置を変
更した他実施例１と同様に行ったところ、好ましい一方
向凝固のロッドが得られた。Example 2 Using the apparatus shown in FIG. 2, the same procedure as in Example 1 was performed except that the N2 gas injection position was changed, and a preferable unidirectionally solidified rod was obtained.
第１図は、横型連続鋳造において、適用された本発明で
ある。 第２図は、下向の連続鋳造装置を示す。
（１）は、溶融金属、（２）は、溶解炉、（３）は、鋳
造ロッド、（４）は、Ｎ２ガス導入口、（５）は、冷却
構造体、（６）は、グラファイト鋳型である。FIG. 1 shows the present invention applied to horizontal continuous casting. FIG. 2 shows a downward continuous casting apparatus. (1) Molten metal, (2) Melting furnace, (3) Casting rod, (4) N2 gas inlet, (5) Cooling structure, (6) Graphite mold It is.
Claims (1)
、冷却構造体に接した構造であって、鋳型の一端及び他
端は、少なくとも熱良導体とし、その境界部を断熱構造
とすることを特徴とする連続鋳造装置。(1) One end of the mold is heated by the molten metal, and the other end is in contact with the cooling structure, and the one end and the other end of the mold are at least good thermal conductors, and the boundary part has a heat insulating structure. A continuous casting device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3150885A JPS61193743A (en) | 1985-02-21 | 1985-02-21 | Continuous casting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3150885A JPS61193743A (en) | 1985-02-21 | 1985-02-21 | Continuous casting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61193743A true JPS61193743A (en) | 1986-08-28 |
| JPH0217261B2 JPH0217261B2 (en) | 1990-04-19 |
Family
ID=12333156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3150885A Granted JPS61193743A (en) | 1985-02-21 | 1985-02-21 | Continuous casting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61193743A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4899801A (en) * | 1986-06-10 | 1990-02-13 | Asaba Co., Ltd. | Method for continuous casting of metal and an apparatus therefor |
| JPH03133543A (en) * | 1989-10-18 | 1991-06-06 | Dowa Mining Co Ltd | Continuous casting method |
| JP2007290037A (en) * | 2006-03-31 | 2007-11-08 | Dowa Holdings Co Ltd | Apparatus and method for casting zinc, and zinc rod and method for manufacturing zinc rod |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52142625A (en) * | 1976-05-24 | 1977-11-28 | Oumi Shindo Kk | Continuous casting method of metal |
| JPS5671347U (en) * | 1979-10-29 | 1981-06-12 | ||
| JPS5791850A (en) * | 1980-11-29 | 1982-06-08 | Nippon Steel Corp | Graphite casting mold for horizontal and continuous casting of cast iron plate |
| JPS5897464A (en) * | 1981-12-02 | 1983-06-09 | Atsumi Ono | Continuous casting method for eutectic composite material |
| JPS59229262A (en) * | 1983-06-13 | 1984-12-22 | O C C:Kk | Method and device for horizontal type continuous casting of metallic molding |
-
1985
- 1985-02-21 JP JP3150885A patent/JPS61193743A/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52142625A (en) * | 1976-05-24 | 1977-11-28 | Oumi Shindo Kk | Continuous casting method of metal |
| JPS5671347U (en) * | 1979-10-29 | 1981-06-12 | ||
| JPS5791850A (en) * | 1980-11-29 | 1982-06-08 | Nippon Steel Corp | Graphite casting mold for horizontal and continuous casting of cast iron plate |
| JPS5897464A (en) * | 1981-12-02 | 1983-06-09 | Atsumi Ono | Continuous casting method for eutectic composite material |
| JPS59229262A (en) * | 1983-06-13 | 1984-12-22 | O C C:Kk | Method and device for horizontal type continuous casting of metallic molding |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4899801A (en) * | 1986-06-10 | 1990-02-13 | Asaba Co., Ltd. | Method for continuous casting of metal and an apparatus therefor |
| JPH03133543A (en) * | 1989-10-18 | 1991-06-06 | Dowa Mining Co Ltd | Continuous casting method |
| JP2007290037A (en) * | 2006-03-31 | 2007-11-08 | Dowa Holdings Co Ltd | Apparatus and method for casting zinc, and zinc rod and method for manufacturing zinc rod |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0217261B2 (en) | 1990-04-19 |
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