JP3152075B2 - Copper continuous casting method and apparatus - Google Patents
Copper continuous casting method and apparatusInfo
- Publication number
- JP3152075B2 JP3152075B2 JP18618594A JP18618594A JP3152075B2 JP 3152075 B2 JP3152075 B2 JP 3152075B2 JP 18618594 A JP18618594 A JP 18618594A JP 18618594 A JP18618594 A JP 18618594A JP 3152075 B2 JP3152075 B2 JP 3152075B2
- Authority
- JP
- Japan
- Prior art keywords
- copper
- casting
- vacuum
- less
- continuous casting
- 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 - Lifetime
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims description 60
- 239000010949 copper Substances 0.000 title claims description 52
- 229910052802 copper Inorganic materials 0.000 title claims description 51
- 238000009749 continuous casting Methods 0.000 title claims description 13
- 238000000034 method Methods 0.000 title claims description 11
- 238000005266 casting Methods 0.000 claims description 47
- 239000001301 oxygen Substances 0.000 claims description 32
- 229910052760 oxygen Inorganic materials 0.000 claims description 32
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 30
- 239000011261 inert gas Substances 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 description 11
- 229910052739 hydrogen Inorganic materials 0.000 description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 9
- 239000003984 copper intrauterine device Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000005491 wire drawing Methods 0.000 description 2
- YXLXNENXOJSQEI-UHFFFAOYSA-L Oxine-copper Chemical compound [Cu+2].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 YXLXNENXOJSQEI-UHFFFAOYSA-L 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はブローホールを低減した
銅の連続鋳造方法およびその装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for continuously casting copper with reduced blowholes.
【０００２】[0002]
【従来の技術】図３は、銅を連続鋳造する従来のコンチ
ロッド鋳造機を示す。電解銅板をシャフト炉１で溶解
し、溶銅７は保持炉２を通り、鋳造樋３を経てノズル４
からタンディッシュ５に注湯される。その後、溶銅７は
ツイルベルト６により連続鋳造（７０mm×１００mm）さ
れ、熱間圧延を経てφ８mmの銅線となる。FIG. 3 shows a conventional conch rod casting machine for continuously casting copper. The electrolytic copper plate is melted in the shaft furnace 1, and the molten copper 7 passes through the holding furnace 2, passes through the casting trough 3,
Is poured into the tundish 5. Thereafter, the molten copper 7 is continuously cast (70 mm × 100 mm) by the twill belt 6, and hot-rolled into a copper wire of φ8 mm.
【０００３】φ８mmの銅線を製造する場合、酸素量が通
常の２００〜４５０ppm のときには、φ８mm銅線に生じ
る傷は少ないが、２００ppm 以下では傷が多い。In the case of producing a φ8 mm copper wire, when the oxygen content is 200 to 450 ppm, the flaw generated in the φ8 mm copper wire is small, but when the oxygen content is 200 ppm or less, the flaw is large.
【０００４】φ０．１mm以下の極細線を製造する場合、
酸素濃度が高いと、一種の欠陥として作用する。例え
ば、６００〜７００ppm のような高酸素濃度では、伸線
時Ｃｕ2 Ｏ粒子が多いため、断線し易いという問題があ
る。このため、酸素濃度を低めることが望ましい。しか
し、酸素濃度を２００ppm 以下にすると、下記の平衡式
にしたがって、 Ｈ2 Ｏ←→２Ｈ＋Ｏ 水素によるブローホールが発生し、φ０．１mm銅線に生
じる傷が増大し伸線時断線する。そのため酸素濃度は約
２００ppm より下げることができない。[0004] When manufacturing ultra fine wires of φ0.1 mm or less,
When the oxygen concentration is high, it acts as a kind of defect. For example, when the oxygen concentration is as high as 600 to 700 ppm, there is a problem that the wire is easily broken because there are many Cu 2 O particles at the time of drawing. Therefore, it is desirable to lower the oxygen concentration. However, if the oxygen concentration is set to 200 ppm or less, blowholes are generated by H 2 O ← → 2H + O hydrogen according to the following equilibrium equation, the scratches generated on the φ0.1 mm copper wire increase, and the wire is broken at the time of drawing. Therefore, the oxygen concentration cannot be reduced below about 200 ppm.
【０００５】一方、低酸素銅線を作る技術において、即
ちＳＣＲ鋳造機において、ブタンガスを調整して酸素濃
度を５０ppm 以下にすると、水素によるブローホールが
発生し、これに起因して伸線時断線に至る。On the other hand, in the technology for producing low-oxygen copper wires, that is, in a SCR casting machine, if the oxygen concentration is adjusted to 50 ppm or less by adjusting the butane gas, blowholes due to hydrogen are generated. Leads to.
【０００６】[0006]
【発明が解決しようとする課題】上述したように従来技
術には次のような問題があった。As described above, the prior art has the following problems.
【０００７】（１）極細線向けに酸素濃度を２００ppm
以下にして銅線を製造すると、水素によるブローホール
の傷が形成され、これによって伸線時断線に至る。(1) 200 ppm oxygen concentration for ultra-fine wires
When a copper wire is manufactured in the following manner, a blow hole is damaged by hydrogen, which results in a break during wire drawing.
【０００８】（２）低酸素銅線を作る場合、酸素濃度を
５０ppm 以下にすると、水素によるブローホールが発生
し、これに起因して伸線時断線に至る。(2) When making a low-oxygen copper wire, if the oxygen concentration is set to 50 ppm or less, a blow hole due to hydrogen is generated, which results in disconnection at the time of drawing.
【０００９】本発明の目的は、前記した従来技術の欠点
を解消し、低い酸素濃度の場合でも、水素の発生を抑制
し、伸線時の断線を防止しようとする銅の連続鋳造方法
およびその装置を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned drawbacks of the prior art, to suppress the generation of hydrogen even at a low oxygen concentration, and to prevent copper from breaking during wire drawing, and a method for continuously casting copper. It is to provide a device.
【００１０】[0010]
【課題を解決するための手段】本発明の銅の連続鋳造方
法は、直径０．１mm以下の極細線用の銅の連続鋳造方法
であって、溶銅を鋳造樋からタンディッシュを経て鋳型
に供給する際に、溶銅を酸素濃度２００ppm 以下に調整
すると共に、６．６５×１０ 3 Pa以下の真空度に真空引
きし、同時に、鋳造樋、タンディッシュ、および鋳型の
入口に不活性ガスを供給して、溶銅表面を不活性ガスで
シールしながら鋳造する。不活性ガスとしてはＮ2 また
はＡｒガスなどがある。SUMMARY OF THE INVENTION A continuous casting method for copper according to the present invention is a method for continuously casting copper for ultrafine wires having a diameter of 0.1 mm or less.
Then, the molten copper is cast from the casting gutter through the tundish to the mold.
Adjust the molten copper to an oxygen concentration of 200ppm or less when supplying to
And evacuate to a vacuum of 6.65 × 10 3 Pa or less.
Squeeze, and at the same time, the casting gutter, tundish, and mold
Supply an inert gas to the inlet, and use the inert gas to clean the molten copper surface.
Cast while sealing . Examples of the inert gas include N 2 gas and Ar gas.
【００１１】溶銅の真空引の真空度を６．６５×１０3
Ｐａ以下と限定したのは、６．６５×１０3 Ｐａ以下で
水素のブローホール低減効果が高いからである。また、
特に真空引の真空度を６．６５×１０2 Ｐａ以下とする
とブローホール低減効果が著しいので好ましい。The degree of vacuum of the molten copper is reduced to 6.65 × 10 3.
The reason for limiting the pressure to Pa or less is that the effect of reducing hydrogen blow holes is high at 6.65 × 10 3 Pa or less. Also,
In particular, it is preferable that the degree of vacuum is set to 6.65 × 10 2 Pa or less because the effect of reducing blow holes is remarkable.
【００１２】また、本発明の銅の連続鋳造装置は、溶銅
を鋳造樋からタンディッシュを経て鋳型に供給する直径
０．１mm以下の極細線用の銅の連続鋳造装置において、
溶銅の酸素濃度を２００ppm 以下に調整する保持炉と、
上記鋳造樋内の溶銅中に開口した底部が浸漬する真空槽
と、該真空槽中に挿入された真空引配管を有し、真空槽
中を６．６５×１０ 3 Pa以下に真空引きする真空引装置
と、上記鋳造樋、タンディッシュ、および上記鋳型の入
口に開口して溶銅表面に不活性ガスを供給する不活性ガ
ス供給管とを備えたものである。Further, the continuous casting apparatus for copper of the present invention has a diameter for supplying molten copper from a casting gutter to a mold via a tundish.
In a continuous casting apparatus for copper for ultra-fine wires of 0.1 mm or less ,
A holding furnace for adjusting the oxygen concentration of the molten copper to 200 ppm or less;
It has a vacuum tank in which the bottom opened in the molten copper in the casting gutter is immersed, and a vacuum pipe inserted in the vacuum tank, and evacuates the vacuum tank to 6.65 × 10 3 Pa or less. The apparatus has a vacuum evacuation device, the casting gutter, the tundish, and an inert gas supply pipe that opens at an inlet of the mold and supplies an inert gas to the surface of the molten copper.
【００１３】連続鋳造装置としては、コンチロッド鋳造
機、ＳＣＲ鋳造機あるいはプロペルチ鋳造機などがあ
る。また、上記真空槽および上記真空引き配管はＳｉＣ
で構成することが好ましい。The continuous casting apparatus includes a conch rod casting machine, an SCR casting machine, a propelch casting machine and the like. The vacuum chamber and the vacuum pipe are made of SiC.
It is preferable to configure
【００１４】[0014]
【作用】溶銅中の水素と酸素は、溶銅の接している雰囲
気中の水蒸気と次の平衡式の関係にある。The hydrogen and oxygen in the molten copper have the following equilibrium equation with the water vapor in the atmosphere in contact with the molten copper.
【００１５】 Ｈ2 Ｏ ←→〓２Ｈ＋Ｏ （１） 平衡定数は Ｋ＝［Ｈ］2 ・［Ｏ］／ＰH2O （２） ここに、［Ｈ］：溶銅中の水素濃度 ［Ｏ］：溶銅中の酸素濃度 ＰH2O ：雰囲気中の水蒸気分圧 Ｋは温度の関数であり、一定温度ではＫも一定であり、
操業時もほぼ一定とみなす。溶銅に対する真空引きによ
りＰH2O を下げることができ、Ｋ＝一定のために
［Ｈ］、［Ｏ］も低くなる。したがって、［Ｈ］が少な
くなるので、凝固時発生するブローホールも少なくな
る。H 2 O ← → 〓2H + O (1) The equilibrium constant is K = [H] 2 · [O] / P H2O (2) where [H]: concentration of hydrogen in molten copper [O]: concentration of hydrogen Oxygen concentration in copper P H2O : partial pressure of water vapor in atmosphere K is a function of temperature, and K is constant at a constant temperature.
It is considered almost constant during operation. P H2O can be reduced by evacuation of the molten copper, and [H] and [O] are also reduced because K is constant. Therefore, [H] is reduced, and blowholes generated during solidification are also reduced.
【００１６】[0016]
【実施例】以下、本発明の実施例について説明する。図
１はツインベルトを用いたコンチロッド鋳造機を示す。
電解銅板をシャフト炉１で溶解し、溶解した溶銅７は保
持炉２を通り、鋳造樋３を経てノズル４からタンディッ
シュ５に注湯される。その後、溶銅７はツインベルト６
により連続鋳造されて銅塊８となり、熱間圧延を経て所
定径の銅線となる。Embodiments of the present invention will be described below. FIG. 1 shows a conch rod casting machine using a twin belt.
The electrolytic copper plate is melted in the shaft furnace 1, and the melted molten copper 7 passes through the holding furnace 2, and is poured into the tundish 5 from the nozzle 4 through the casting gutter 3. After that, molten copper 7 is twin belt 6
To form a copper lump 8, which is hot-rolled into a copper wire having a predetermined diameter.
【００１７】本実施例では、鋳造樋３に真空槽９と、真
空ポンプ１０とからなる真空引装置Ａを設置し、鋳造樋
３を通る溶銅を６．６５×１０3 Ｐａ以下の真空度に真
空引きする。In this embodiment, a vacuum evacuation device A comprising a vacuum tank 9 and a vacuum pump 10 is installed in the casting gutter 3, and the molten copper passing through the casting gutter 3 is evacuated to a vacuum degree of 6.65 × 10 3 Pa or less. Vacuum.
【００１８】また、上記鋳造樋３、タンディッシュ５、
およびツインベルト６の入口の各要所に、不活性ガス供
給管１１の開口部を臨ませ、これらの開口部からＮ2 ま
たはＡｒガスなどの不活性ガス１２を供給して、溶銅７
の表面を不活性ガスでシールする。この不活性ガスシー
ルにより真空引き後の溶銅と外気との接触を断つように
する。The casting gutter 3, the tundish 5,
The openings of the inert gas supply pipes 11 are made to face the key points of the inlet of the twin belt 6, and an inert gas 12 such as N 2 or Ar gas is supplied from these openings to supply the molten copper 7.
Is sealed with an inert gas. With this inert gas seal, the contact between the molten copper after evacuation and the outside air is cut off.
【００１９】図２は、鋳造樋３に設置した真空引装置Ａ
の具体的構成を示す。真空槽９は、底部が開口してお
り、その開口した底部を鋳造樋３内の溶銅７中に浸漬さ
せ、真空槽９内に入る溶銅７について真空引きできるよ
うになっている。真空ポンプ１０は、それから出た真空
引配管１３を真空槽９内に挿入して、真空槽内に入る溶
銅７を真空引きするようになっている。FIG. 2 shows a vacuum evacuation device A installed on the casting gutter 3.
The specific configuration of is shown. The vacuum tank 9 has an open bottom, and the opened bottom is immersed in the molten copper 7 in the casting gutter 3 so that the molten copper 7 entering the vacuum tank 9 can be evacuated. The vacuum pump 10 inserts the vacuum pipe 13 coming out of the vacuum pump 10 into the vacuum chamber 9 to evacuate the molten copper 7 entering the vacuum chamber.
【００２０】真空ポンプ１０は、上述した真空度の程度
から、ロータリーポンプなどの比較的低真空のポンプで
よく、高い真空度を得る拡散ポンプ等を必要としない。
また、真空槽９および真空引配管１３は、緻密で通気性
が低く、溶銅に対してぬれ性のよいＳｉＣ等のセラミッ
クスで構成することが好ましい。Due to the degree of vacuum described above, the vacuum pump 10 may be a pump having a relatively low vacuum such as a rotary pump, and does not require a diffusion pump for obtaining a high degree of vacuum.
Further, it is preferable that the vacuum chamber 9 and the vacuum pipe 13 are made of ceramics such as SiC which is dense, has low air permeability, and has good wettability to molten copper.
【００２１】さて、上述したツインベルト方式のコンチ
ロッド鋳造機にて、シャフト炉１で溶解した電気銅を保
持炉２でポーリングし、酸素を調整し、２８トン／ｈｒ
の速度で連続的にタフピッチ銅を鋳造した。Now, in the twin belt type conch rod casting machine described above, the electrolytic copper melted in the shaft furnace 1 was polled in the holding furnace 2 to adjust oxygen, and 28 tons / hr.
The tough pitch copper was continuously cast at the speed shown in FIG.
【００２２】真空ポンプ１０は、バルブを調整すること
によって、真空引しない場合と、真空引きする場合とに
分けた。真空引きする場合には真空度が約６．６５×１
０3Ｐａのときと、６．６５×１０2 Ｐａ以下のときと
について検討した。なお、真空引きするときは、不活性
ガス供給管１１からＮ2 ガスを溶銅に吹付けて溶銅をシ
ールした。The vacuum pump 10 is divided into a case where no vacuum is applied and a case where vacuum is applied by adjusting a valve. When evacuating, the degree of vacuum is about 6.65 × 1
The case of 0 3 Pa and the case of 6.65 × 10 2 Pa or less were examined. When vacuuming, the molten copper was sealed by spraying N 2 gas onto the molten copper from the inert gas supply pipe 11.
【００２３】真空度、酸素濃度、鋳造バーのブローホー
ルとの関係の検討結果を表１に示す。Table 1 shows the results of a study of the relationship between the degree of vacuum, the oxygen concentration, and the blowhole of the casting bar.
【００２４】[0024]
【表１】 [Table 1]
【００２５】表１より、真空度が６．６５×１０3 Ｐａ
〜５．３２×１０3 、および６．６５×１０2 以下で
は、ともに鋳造バー（７０mm×１００mm）にブローホー
ルが少ないことが判った。また、前者の場合、酸素濃度
は１３０〜１１０ppm 以下であり、後者の場合は１００
〜１２０ppm であった。According to Table 1, the degree of vacuum is 6.65 × 10 3 Pa.
It was found that the cast bar (70 mm x 100 mm) had few blowholes at 5.32 x 10 3 and 6.65 x 10 2 or less. In the former case, the oxygen concentration is 130 to 110 ppm or less, and in the latter case, the oxygen concentration is 100 to 110 ppm.
~ 120 ppm.
【００２６】また、予測した通り真空引きなしの場合
で、鋳造バー中の酸素濃度が１２０ppm のものでは鋳造
バーブローホールが多く、酸素濃度が３５０ppm と多く
なると鋳造バーブローホールが少ないことも判った。Also, as expected, it was also found that the casting bar blowhole was large when the oxygen concentration in the casting bar was 120 ppm and the casting bar blowhole was small when the oxygen concentration was as high as 350 ppm in the case where no evacuation was performed as expected. .
【００２７】同表にブローホール率（％）を示した。こ
れは、１２ＭｅＶのＸ線にて鋳造バーの透過写真を撮影
し、ネガから焼き付けた写真のブローホール部をサイン
ペンで塗り潰し（ブローホール射影面積）、次式に基づ
いて ブローホール率Ｐ（％）＝（ブローホール射影面積）／
（鋳造材のＸ線透過面積） コンピュータで求めた値である。The blowhole ratio (%) is shown in the same table. This is done by taking a transmission photo of the casting bar with X-ray of 12 MeV, filling the blowhole part of the photograph printed from the negative with a felt-tip pen (blowhole projection area), and the blowhole ratio P (%) based on the following formula. = (Blowhole projected area) /
(X-ray transmission area of cast material) This is a value obtained by a computer.
【００２８】■２〜■４サンプルでも同様に検討したと
ころ、ブローホールが少ない傾向が認められた。すなわ
ち、■３、■４サンプルのものは、通常の酸素濃度（３
００〜３５０ppm Ｏ2 ）で観察される■２サンプルのブ
ローホールの量とほぼ同程度まで改善されていることが
わかる。When the samples # 2 to # 4 were examined in the same manner, a tendency that blowholes were small was recognized. That is, the samples of # 3 and # 4 have the normal oxygen concentration (3
It can be seen that the amount of the blowholes of the # 2 sample observed at 00 to 350 ppm O 2 ) is improved to almost the same level.
【００２９】なお、上記実施例ではコンチロッド鋳造機
を使用した場合について説明したが、他の鋳造機の場合
にも適用できる。例えばＳＣＲ鋳造機で低酸素化工程を
経て合金元素を添加する方法はよく行われるが、低酸素
化すると発生する水素のため、ＳＣＲ鋳造機のように曲
げ、ひずみのかかる製造法では鋳造バー割れを起こす。
この鋳造バー割れは、上記実施例の真空引装置をセット
することにて改善され、合金が割れることなく鋳造可能
となる。In the above embodiment, the case where a conch rod casting machine is used has been described. However, the present invention can be applied to other casting machines. For example, a method of adding an alloying element through an oxygen reducing step in an SCR casting machine is often used. However, since hydrogen is generated when the oxygen is reduced, a casting bar cracking occurs in a manufacturing method in which bending and distortion occur like an SCR casting machine. Cause
This casting bar crack is improved by setting the vacuum device of the above embodiment, and casting can be performed without cracking the alloy.
【００３０】以上述べたように本実施例によれば、タフ
ピッチ銅において、酸素量が２００ppm 以下の場合でも
鋳造バー中のブローホールは少なくなり、製造される銅
線（φ８mm）の欠陥が少なくなり品質向上が図れる。As described above, according to this embodiment, in tough pitch copper, even when the oxygen content is 200 ppm or less, the number of blowholes in the casting bar is reduced, and the defect of the manufactured copper wire (φ8 mm) is reduced. Quality can be improved.
【００３１】また、酸素含有量が少なくブローホールも
少ないので、φ０．１mm以下の極細線製造に有利であ
る。即ち、ボビン取りの重量が増やせ、経済効果があ
る。Further, since the oxygen content is small and the number of blow holes is small, it is advantageous for the production of ultrafine wires of φ0.1 mm or less. That is, the weight of bobbin removal can be increased, which has an economic effect.
【００３２】[0032]
【発明の効果】本発明方法によれば、鋳造前の溶銅を
６．６５×１０3 Ｐａ以下の比較的低い真空度に真空引
きを行いながら鋳造するという方法によって、酸素量が
２００ppm 以下の場合でも、鋳造バー中のブローホール
を低減でき、製品の品質向上が図れる。According to the method of the present invention, the molten copper before casting is cast while being evacuated to a relatively low vacuum of 6.65 × 10 3 Pa or less. Even in this case, blow holes in the casting bar can be reduced, and the quality of the product can be improved.
【００３３】本発明装置によれば、真空槽、真空引ポン
プ、および不活性ガス供給管を設けるという簡単な構成
により、低い酸素濃度の場合でも、水素の発生に起因す
るブローホールを低減できる。According to the apparatus of the present invention, even in the case of a low oxygen concentration, the number of blow holes caused by the generation of hydrogen can be reduced even with a low oxygen concentration due to the simple structure of providing the vacuum tank, the vacuum pump, and the inert gas supply pipe.
【図１】本発明の銅の連続鋳造装置の実施例を説明する
ためのコンチロッド鋳造機の概略図である。FIG. 1 is a schematic view of a conch rod casting machine for explaining an embodiment of a continuous casting apparatus for copper of the present invention.
【図２】本実施例による真空引装置の構成図である。FIG. 2 is a configuration diagram of an evacuation apparatus according to the present embodiment.
【図３】従来例のコンチロッド鋳造機の概略図である。FIG. 3 is a schematic view of a conventional conch rod casting machine.
１ シャフト炉 ２ 保持炉 ３ 鋳造樋 ４ ノズル ５ タンディッシュ ６ ツインベルト ７ 溶銅 ８ 銅塊 ９ 真空槽 １０ 真空ポンプ １１ 不活性ガス供給管 １２ 不活性ガス（Ｎ2 、Ａｒ） １３ 真空引配管 Ａ 真空引装置Reference Signs List 1 shaft furnace 2 holding furnace 3 casting gutter 4 nozzle 5 tundish 6 twin belt 7 molten copper 8 copper lump 9 vacuum tank 10 vacuum pump 11 inert gas supply pipe 12 inert gas (N 2 , Ar) 13 vacuum pipe A Vacuum device
───────────────────────────────────────────────────── フロントページの続き (72)発明者 渡部 雅人 茨城県日立市日高町５丁目１番１号 日 立電線株式会社パワーシステム研究所内 (72)発明者 池田 大亮 茨城県日立市川尻町４丁目10番１号 日 立電線株式会社 豊浦工場内 (56)参考文献 特開 平５−192752（ＪＰ，Ａ) 特開 平６−25777（ＪＰ，Ａ) 特開 平６−39507（ＪＰ，Ａ) 特開 平５−192752（ＪＰ，Ａ) 特開 昭64−79354（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B22D 11/00 B22D 11/06 340 B22D 11/10 360 B22D 11/103 B22D 27/15 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masato Watanabe 5-1-1, Hidaka-cho, Hitachi-shi, Ibaraki Power Systems Research Laboratories, Nippon Electric Cable Co., Ltd. (72) Inventor Daisuke Ikeda 4 Kawajiri-cho, Hitachi-shi, Ibaraki JP-A-5-192752 (JP, A) JP-A-6-25777 (JP, A) JP-A-6-39507 (JP, A) JP-A-5-192752 (JP, A) JP-A-64-79354 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B22D 11/00 B22D 11/06 340 B22D 11 / 10 360 B22D 11/103 B22D 27/15
Claims (4)
造方法であって、溶銅を鋳造樋からタンディッシュを経
て鋳型に供給する際に、溶銅を酸素濃度２００ppm 以下
に調整すると共に、６．６５×１０3 Pa以下の真空度に
真空引きし、同時に、鋳造樋、タンディッシュ、および
鋳型の入口に不活性ガスを供給して、溶銅表面を不活性
ガスでシールしながら鋳造する銅の連続鋳造方法。1. Continuous casting of copper for ultra-fine wires having a diameter of 0.1 mm or less
Method of casting molten copper from a casting gutter through a tundish.
When the molten copper is supplied to the mold, the oxygen concentration is 200 ppm or less.
And evacuate to a vacuum of 6.65 × 10 3 Pa or less, and at the same time, cast gutter, tundish, and
Supply inert gas to the mold inlet to make the molten copper surface inert
A continuous casting method of copper that is cast while sealing with gas .
て、真空引の真空度を６．６５×１０ 2 Pa以下とした銅
の連続鋳造方法。2. The method for continuously casting copper according to claim 1.
And a copper continuous casting method in which the degree of vacuum is 6.65 × 10 2 Pa or less .
型に供給する直径０．１mm以下の極細線用の銅の連続鋳
造装置において、溶銅の酸素濃度を２００ppm 以下に調
整する保持炉と、上記鋳造樋内の溶銅中に開口した底部
が浸漬する真空槽と、該真空槽中に挿入された真空引配
管を有し、真空槽中を６．６５×１０ 3 Pa以下に真空引
きする真空引装置と、上記鋳造樋、タンディッシュ、お
よび上記鋳型の入口に開口して溶銅表面に不活性ガスを
供給する不活性ガス供給管とを備えた銅の連続鋳造装
置。 3. A molten copper is cast from a casting gutter through a tundish.
Continuous casting of copper for ultra-fine wires less than 0.1mm in diameter supplied to the mold
In the production equipment, adjust the oxygen concentration of the molten copper to 200 ppm or less.
Holding furnace to be adjusted, and bottom part opened in molten copper in the casting gutter
A vacuum chamber in which is immersed, and a vacuum arrangement inserted in the vacuum chamber
It has a tube and evacuates the vacuum chamber to 6.65 × 10 3 Pa or less.
Vacuum gutter, casting gutter, tundish,
And open the inlet of the above mold and apply inert gas to the molten copper surface.
Continuous casting apparatus with an inert gas supply pipe for supplying copper
Place.
て、上記真空槽および上記真空引き配管をＳｉＣで構成
した銅の連続鋳造装置。4. A continuous casting apparatus for copper according to claim 3.
And the vacuum chamber and the vacuum pipe are made of SiC.
Continuous casting system of copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18618594A JP3152075B2 (en) | 1994-08-08 | 1994-08-08 | Copper continuous casting method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18618594A JP3152075B2 (en) | 1994-08-08 | 1994-08-08 | Copper continuous casting method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0847747A JPH0847747A (en) | 1996-02-20 |
| JP3152075B2 true JP3152075B2 (en) | 2001-04-03 |
Family
ID=16183882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18618594A Expired - Lifetime JP3152075B2 (en) | 1994-08-08 | 1994-08-08 | Copper continuous casting method and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3152075B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1127946B1 (en) | 2000-02-24 | 2005-10-12 | Mitsubishi Materials Corporation | Installation for producing continuously cast low-oxygen copper ingots |
| TW200531762A (en) * | 2004-01-30 | 2005-10-01 | Sumitomo Metal Ind | Continuous casting method for copper alloy |
| JP5160179B2 (en) * | 2007-10-05 | 2013-03-13 | 三菱マテリアル株式会社 | Copper material continuous manufacturing method |
-
1994
- 1994-08-08 JP JP18618594A patent/JP3152075B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0847747A (en) | 1996-02-20 |
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