JPH01309760A - Continuous casting method - Google Patents
Continuous casting methodInfo
- Publication number
- JPH01309760A JPH01309760A JP13939988A JP13939988A JPH01309760A JP H01309760 A JPH01309760 A JP H01309760A JP 13939988 A JP13939988 A JP 13939988A JP 13939988 A JP13939988 A JP 13939988A JP H01309760 A JPH01309760 A JP H01309760A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- slurry
- belt
- solidified
- semi
- 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
- 238000000034 method Methods 0.000 title claims description 22
- 238000009749 continuous casting Methods 0.000 title claims description 9
- 239000002184 metal Substances 0.000 claims abstract description 71
- 229910052751 metal Inorganic materials 0.000 claims abstract description 71
- 239000002002 slurry Substances 0.000 claims abstract description 34
- 238000001816 cooling Methods 0.000 claims abstract description 14
- 239000007787 solid Substances 0.000 claims description 21
- 238000005096 rolling process Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims 1
- 239000013078 crystal Substances 0.000 abstract description 14
- 238000003756 stirring Methods 0.000 abstract description 6
- 239000012071 phase Substances 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 11
- 239000002245 particle Substances 0.000 description 7
- 238000007711 solidification Methods 0.000 description 7
- 230000008023 solidification Effects 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 4
- 210000001787 dendrite Anatomy 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010587 phase diagram Methods 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000035900 sweating Effects 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
- B22D11/0631—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a travelling straight surface, e.g. through-like moulds, a belt
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野〕
本発明はエンドレスで走行する金属ベルト上に半凝固金
属スラリーを流して凝固させ、連続して広巾の板状鋳塊
を製造する連続鋳造法に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a continuous casting method in which a semi-solid metal slurry is poured onto an endlessly running metal belt and solidified to continuously produce a wide plate-shaped ingot. It is related to.
（従来の技術〕
走行する金属ベルト面上に溶融金属を流して冷ｆ！１凝
固せしめ、連続して板状鋳塊を１ワる連続鋳造方法は特
公昭６０−３５２１８号公報等により公知でおり、その
−殻内な方法を第２図に基づき説明する。(Prior art) A continuous casting method in which molten metal is poured onto the surface of a running metal belt, solidified by cold f!1, and plate-shaped ingots are continuously cast once is known from Japanese Patent Publication No. 60-35218, etc. The in-shell method will be explained based on FIG.
即ちタンデイツシュ（１８）に連続移送された溶融金属
をタンデイツシュ（１８）の出湯口（１９）より従動ロ
ール（９）及び駆動ロール（８）によって張られ、その
上面を水平に保たれて走行するエンドレス金属ベルト（
１０）上に流出させる。そしてベルト（１０）はテンシ
ョンロール（１２）によって張力が加えられており、こ
のベルト（１０）上に注湯された溶融金属（１）はベル
ト（１０）を介してベルト下方に設置された冷却装置（
１１）により冷却されて凝固し、完全凝固相（１３）を
形成する。該同相（１３）はベル１〜（４）の進行に伴
なって次第に厚ざを増すが、ベルト面からの固相厚が全
体の８０％に達する位置に前記駆動ロール（８）は設置
されており、さらにこの上方に、内外部を水冷され、金
属ベルト（１０）の走行速度に合わせて回転するスキン
ロール（１４）が設置されている。従って該スキンロー
ル（１４）で溶融金属の上面を圧接することにより溶融
金属の上表面はスキンロール（１４）により冷却凝固し
完全凝固相（１３″）を形成して全体が凝固し、かつス
キンロール（１４）と駆動ロール（８）との間でこの凝
固金属は若干圧延されて所望の板厚の鋳塊（１５）が製
出される。That is, the molten metal continuously transferred to the tundish (18) is stretched from the outlet (19) of the tundish (18) by a driven roll (9) and a driving roll (8), and the endless roller runs while keeping the upper surface of the tundish (18) horizontal. metal belt (
10) Let flow to the top. Tension is applied to the belt (10) by a tension roll (12), and the molten metal (1) poured onto the belt (10) is passed through a cooling device installed below the belt. Device(
11) to solidify and form a completely solidified phase (13). The same phase (13) gradually increases in thickness as the bells 1 to (4) advance, and the drive roll (8) is installed at a position where the solid phase thickness from the belt surface reaches 80% of the total. Further above this, a skin roll (14) is installed which is water-cooled inside and out and rotates in accordance with the running speed of the metal belt (10). Therefore, by pressing the upper surface of the molten metal with the skin roll (14), the upper surface of the molten metal is cooled and solidified by the skin roll (14), forming a completely solidified phase (13'') and solidifying the entire surface of the molten metal. This solidified metal is slightly rolled between the roll (14) and the drive roll (8) to produce an ingot (15) of a desired thickness.
その後この鋳塊（１５）は直ちにローラーコンベア（１
６）等の上を走行し、水又は空気等による外部の鋳塊冷
却装置（１７）によって強制冷却された後にコイラー（
２０）により巻取られる。Thereafter, this ingot (15) is immediately transferred to a roller conveyor (1
6) etc., and is forcibly cooled by an external ingot cooling device (17) using water or air, etc.
20).
なおここでベルト（１０）上の溶融金属（１）の巾を確
保する方法は金属製ブロックをリンクで連結したものを
ベルト（１０）の走行速度に合わせてベルト（１０）の
両側に走行させることにより行なう。Here, the method for securing the width of the molten metal (1) on the belt (10) is to run metal blocks connected by links on both sides of the belt (10) in accordance with the running speed of the belt (10). Do it by doing this.
このような連続鋳造法の特徴は、水平に保持され走行す
るベルトの上に注湯された溶融金属をベルト上で冷却凝
固させるとともに、スキンロールでも溶融金属を冷却し
てスキンロールとベルトを介した駆動ロールとの最小間
隙部の直前で仝休を同相とし、その後若干の圧延加工が
施されることにある。The feature of this continuous casting method is that the molten metal poured onto a horizontally running belt is cooled and solidified on the belt, and the molten metal is also cooled on the skin roll and passed through the skin roll and belt. The rest is in the same phase immediately before the minimum gap with the driven roll, and then a slight rolling process is performed.
（発明が解決しようとする課題）
このように従来の連続鋳造法は鋳造金属の融点以上に加
熱、保持された溶融金属をベルト上に注湯し、ベルトお
よびスキンロールとによって溶融金属を冷却、凝固させ
た後に該スキンロールとベルトを介した駆動ロールとに
よって若干の圧延加工を行うものである。(Problems to be Solved by the Invention) In this way, the conventional continuous casting method involves pouring molten metal heated above the melting point of the cast metal onto a belt, cooling the molten metal with the belt and skin roll, After solidification, a slight rolling process is performed using the skin roll and a drive roll via a belt.
ところがこの方法では、ベルト上の溶融金属に対してベ
ルト側からの冷却を強くするとベルト面に接した溶融金
属の下面に形成される凝固、相の凝固収縮により発生す
る該）疑固相とベルトとの間の空隙（エア・ギャップ）
が顕著になり、そのために冷却速度が低下する。そして
この冷却速度の低下に伴ない結晶粒や晶出物の粗大化及
び不均一化を生じたり、鋳塊表面で発汗を生じる等鋳塊
品質の劣化を招いており、生産性の向上が妨げられてい
た。However, in this method, when the molten metal on the belt is strongly cooled from the belt side, solidification is formed on the lower surface of the molten metal in contact with the belt surface, and a pseudo-solid phase (which occurs due to solidification contraction of the phase) and the belt are formed. air gap between
becomes significant, which reduces the cooling rate. This reduction in cooling rate causes deterioration of the quality of the ingot, such as coarsening and non-uniformity of crystal grains and crystallized substances, and sweating on the surface of the ingot, which hinders productivity improvement. It was getting worse.
加えて、鋳塊品質の問題として、スキンロールとベルト
を介した駆動ロールとで凝固金属を圧下する際、残留液
相が鋳塊巾方向にしぼり出され、鋳塊側面部にて凝固の
不均一部が形成されるという問題がめった。In addition, as an issue with the quality of the ingot, when the solidified metal is rolled down using a skin roll and a drive roll via a belt, the residual liquid phase is squeezed out in the width direction of the ingot, resulting in failure of solidification on the sides of the ingot. The problem of uniform parts being formed was rare.
またスキンロールによって溶融金属を冷却、凝固させる
とともに圧下を加えるために、ベルト面からの熱抽出に
より形成される下側の凝固相とスキンロールからの熱抽
出により形成される上側の凝固相との境界面が鋳塊長手
方向で連続し、該境界面に圧下に伴う溶質元素の濃化が
認められる。ざらに溶融金属のタンデイツシュ内での場
面高さ変動に伴なう鋳塊板厚および圧延荷重の変動が大
きいために鋳塊長手方向における機械的特性の不均一化
が生じてしまい問題であった。In addition, in order to cool and solidify the molten metal using the skin roll and apply pressure reduction, the lower solidified phase formed by heat extraction from the belt surface and the upper solidified phase formed by heat extracted from the skin roll are separated. The boundary surface is continuous in the longitudinal direction of the ingot, and concentration of solute elements is observed on the boundary surface due to reduction. The problem was that the ingot plate thickness and rolling load fluctuated greatly due to changes in the height of the molten metal in the tundish, resulting in uneven mechanical properties in the longitudinal direction of the ingot. .
（課題を解決するための手段〕
本発明はこれに鑑み種々検討した結果、板状鋳塊の品質
を向上し、かつ生産性をも向上させた連続鋳造法を開発
したものである。(Means for Solving the Problems) In view of this, and as a result of various studies, the present invention has developed a continuous casting method that improves the quality of plate-shaped ingots and also improves productivity.
即ち本発明は駆動ドラムと従動ドラム間に張られてエン
ドレスに走行する金属ベルト上に半凝固金属ネラリーを
流し、該金属ベルトを冷却することにより半凝固金属ス
ラリーを下面から冷却して凝固させ、ざらに駆動ドラム
の上方に冷却されたスキンロールを設け、該スキンロー
ルを金属ベルトの速度と同じ周速度で回転して半凝固金
属スラリーの上面に圧接することにより、半凝固金属ス
ラリーを上面から冷却して凝固させ、かつその凝固金属
にわずかな圧延加工を施して板状鋳塊を連続的に製造す
ることを特徴とするものである。That is, in the present invention, a semi-solid metal slurry is poured onto a metal belt that is stretched between a driving drum and a driven drum and runs endlessly, and the metal belt is cooled to cool and solidify the semi-solid metal slurry from the bottom surface. A cooled skin roll is installed above the drive drum, and the skin roll is rotated at the same circumferential speed as the metal belt to press the semi-solid metal slurry onto the top surface of the semi-solid metal slurry. It is characterized by continuously manufacturing plate-shaped ingots by cooling and solidifying the solidified metal and subjecting the solidified metal to a slight rolling process.
（作 用）
上記半′１１固スラリーは溶融金属が冷却凝固する過程
おいて撹拌を加えられることによって、樹枝状晶の枝部
が分断され、ロッド状もしくは球状の初晶粒子が液相中
に均一分散したものである。(Function) The above semi-solid slurry is stirred during the cooling and solidification process of the molten metal, so that the branches of the dendrites are separated and rod-shaped or spherical primary crystal particles are added to the liquid phase. It is uniformly dispersed.
そして上記のようにこの半凝固スラリーをベルト上に注
ぎベルト面に接した部分から冷却・凝固させた・場合、
ベルト面側の下面部で核発生した樹枝状晶の成長は、す
でに形成されている半凝固金属スラリー中の初晶粒子に
接触した時点で停止し、その大きざが半凝固金属スラリ
ー中の初晶粒子間隔を越えることはない。また半凝固金
属スラリーでは同相率にもよるが凝固収縮量が溶融金属
の１７２〜１７３程度に軽減されるためエアギャップの
影響は軽減される。このため従来の連続鋳造と異なり基
本的に鋳塊組織は、半凝固金属スラリー中の初晶粒子径
および初晶粒子分布に支配されることになる。Then, as described above, if this semi-solidified slurry is poured onto the belt and cooled and solidified from the part in contact with the belt surface,
The growth of the dendrites nucleated on the lower surface of the belt surface stops when they come into contact with the already formed primary crystal particles in the semi-solid metal slurry, and the size of the dendrites is different from the initial crystal particles in the semi-solid metal slurry. It does not exceed the crystal grain spacing. Furthermore, in semi-solid metal slurry, the amount of solidification shrinkage is reduced to about 172 to 173 of that of molten metal, depending on the in-phase ratio, so the influence of air gaps is reduced. Therefore, unlike conventional continuous casting, the ingot structure is basically controlled by the primary crystal particle size and primary crystal particle distribution in the semi-solid metal slurry.
従って初晶粒子径および初晶粒子分布の均一な半凝固ス
ラリーをベルト上に注ぐことによって、均一な結晶粒か
ら構成される板状鋳塊の製造が容易となる。また初晶粒
子の均一分散した半凝固スラリーを圧延するために、圧
下に伴う溶質元素の濃化経路も不連続でかつ均一分散す
るため、鋳塊内の偏析および圧下による液相のしみ出し
は軽減される利点を有する。Therefore, by pouring a semi-solidified slurry with uniform primary crystal grain size and primary crystal grain distribution onto the belt, it becomes easy to produce a plate-shaped ingot composed of uniform crystal grains. In addition, since a semi-solid slurry with uniformly dispersed primary crystal particles is rolled, the concentration path of solute elements due to rolling is discontinuous and uniformly dispersed, so segregation within the ingot and seepage of the liquid phase due to rolling is prevented. It has the advantage of being reduced.
（実施例〕 次に本発明を一実施例により詳細に説明する。(Example〕 Next, the present invention will be explained in detail using an example.
第１図に示すように連続移送された溶融金属（１）は加
熱ヒーター（２）を備えた温度保持用タンデイツシュ（
３）に導入され液相状態に維持される。そして温度保持
用タンデイツシュ（３）の下端におる溶融金属流出孔（
４）には加熱部（５）を直結し、該加熱部（５）上部で
は加熱ヒーター（２°）によって溶融金属の温度は液相
線温度に、加熱部（５）下部では溶融金属（１）は平衡
状態図上の固液共存温度になるように制御される。また
溶融金属（１）は撹拌棒（６）によって撹拌をうけるの
で、加熱部（５）内において形成された樹枝状晶の枝が
分断されて加熱部（５）の下部においては半凝固金属ス
ラリー（以下スラリーと記す）（７）となる。As shown in Figure 1, the continuously transferred molten metal (1) is transferred to a temperature-maintaining tundish (
3) and maintained in a liquid phase state. And the molten metal outflow hole (
A heating section (5) is directly connected to the heating section (5). At the upper part of the heating section (5), the temperature of the molten metal is brought to the liquidus temperature by a heating heater (2°), and at the lower part of the heating section (5), the temperature of the molten metal (1 ) is controlled to the solid-liquid coexistence temperature on the equilibrium phase diagram. Also, since the molten metal (1) is stirred by the stirring rod (6), the branches of the dendrites formed in the heating section (5) are broken and a semi-solid metal slurry is formed at the bottom of the heating section (5). (hereinafter referred to as slurry) (7).
このスラリー（７）を駆動ロール（８）と従動ロール（
９）間に張られテンションロール（１２）により張力が
加えられて走行している金属ベルト（１０）の水平上面
の一端に供給し、金属ベルト（１０）と共に走行させる
。一方金属ベルト（１０）はその下面に設置されている
冷却装置（１１）により冷却されているので、これによ
りスラリー（７）はベルト（１０）と接している下面側
が冷却されて下部より次第に上部へ凝固してゆき下側に
完全凝固相（９）を形成する。そして第１図に示すよう
に完全凝固相（１３）はベルト（１０）の進行に伴なっ
て厚くなるが、その厚さが全厚の約８０％に達した１立
買に冷却されたスキンロール（１４）を金属ベルト（１
０）を介して駆動ロール（８）の上方に設け、該スキン
ロール（１４）をスラリー（７）上面に圧接することに
より全厚の約２０％の上面側のスラリー（７）を凝固さ
せて上側にも完全凝固相（１３’）を形成して凝固金属
とし、ざらに駆動ロール（８）とスキンロール（１４）
との間隙で該凝固金属を若干圧延して所望の板厚の鋳塊
（１５）を製出する。その後この鋳塊（１５）は直ちに
ローラーコンベア（１６）等の上を走行し、水または空
気等による外部の鋳塊冷却装置（１７）により強制的に
冷却される。This slurry (7) is transferred to the driving roll (8) and the driven roll (
9) It is supplied to one end of the horizontal upper surface of the metal belt (10) which is stretched between them and is running under tension by the tension roll (12), and is caused to run together with the metal belt (10). On the other hand, since the metal belt (10) is cooled by the cooling device (11) installed on its lower surface, the slurry (7) is cooled on the lower surface side that is in contact with the belt (10), and gradually increases from the lower part to the upper part. It solidifies to form a completely solidified phase (9) on the lower side. As shown in Figure 1, the fully solidified phase (13) becomes thicker as the belt (10) progresses, and the skin cooled until the thickness reaches about 80% of the total thickness. The roll (14) is attached to the metal belt (1
0) above the drive roll (8), and the skin roll (14) is pressed against the upper surface of the slurry (7) to solidify the slurry (7) on the upper surface side of about 20% of the total thickness. A completely solidified phase (13') is also formed on the upper side to form a solidified metal, and the drive roll (8) and skin roll (14) are roughly formed.
The solidified metal is slightly rolled in the gap between the two to produce an ingot (15) of a desired thickness. Thereafter, this ingot (15) immediately runs on a roller conveyor (16), etc., and is forcibly cooled by an external ingot cooling device (17) using water or air.
なおこのような装置では、従来の装置と同様にベルト（
１０）上のスラ゛リー（７）の巾を確保するには金属製
ブロックをリンクで連結したものをベルト（１０）の走
行速度に合わせて走行させることにより実施する。また
スキンロール（１４）の周速度はベルト（１０）の走行
速度と同一でおる。Note that in this type of device, the belt (
10) To ensure the width of the upper slurry (7), metal blocks connected by links are run in accordance with the running speed of the belt (10). Further, the circumferential speed of the skin roll (14) is the same as the running speed of the belt (10).
また本実施例では半凝固金属スラリーを製造する方法と
して機械的撹拌法を用いたが、他の電磁撹拌法、ならび
に超音波撹拌法等、いずれの方法であっても良い。Further, in this example, a mechanical stirring method was used as a method for producing a semi-solid metal slurry, but any other method such as an electromagnetic stirring method or an ultrasonic stirring method may be used.
上記装置を用いＡ！−４，！ＩＷ↑％ＣＬＪ合金溶瀉を
タンデイツシュ（３）に供給し、加熱部（５）の下部で
該合金の半凝固スラリーの粘度が５ポアズになるように
制御した。即ち、平衡状態図上の固液共存域において初
晶粒子率が４０％となる温度に加熱部（５）の下部の温
度を制御した。なお撹拌棒（６）の回転数は３００ ｒ
Ｆ）ｍであった。A! using the above device! -4,! The molten IW↑%CLJ alloy was supplied to the tundish (3), and the viscosity of the semi-solid slurry of the alloy was controlled to 5 poise at the lower part of the heating section (5). That is, the temperature at the lower part of the heating section (5) was controlled to a temperature at which the primary crystal particle ratio was 40% in the solid-liquid coexistence region on the equilibrium phase diagram. The rotation speed of the stirring rod (6) is 300 r.
F) It was m.
次に上記合金の半凝固スラリーを金属ベルト（１０）上
に流し、厚さ２ ｍｍ Ｘ幅２５０．の板状鋳塊を第１
表に示すように５，１０及び１５ＴｒＬ／ｍｉｎの速度
で連続的に製造し、それぞれの鋳塊についてスキンロー
ルにより圧延され、冷却された後の板厚を測定してその
最大値と最小値の差を板厚差として求め、また鋳塊の長
さ１０ＴｒＬ当りの品質欠陥数を調べ、ざらに初晶粒径
を測定し、これらの結果を第１表に併記した。また従来
法によりＡｊＱ−４，５ｗｔ％ＣＬＪ合金溶湯から直接
骨られる同一断面寸法の鋳塊について同様の調査を行な
い、それらの結果を第１表に併記した。Next, the semi-solid slurry of the above alloy was poured onto a metal belt (10) to a thickness of 2 mm x width of 250 mm. The plate-shaped ingot of
As shown in the table, the ingots were produced continuously at speeds of 5, 10, and 15 TrL/min, and each ingot was rolled with a skin roll and the plate thickness after cooling was measured and the maximum and minimum values were calculated. The difference was determined as a plate thickness difference, the number of quality defects per 10 TrL of ingot length was investigated, and the primary grain size was roughly measured, and these results are also listed in Table 1. In addition, similar investigations were conducted on ingots of the same cross-sectional dimensions that were made directly from molten AjQ-4,5wt% CLJ alloy by the conventional method, and the results are also listed in Table 1.
第１表から明らかなように本発明法ＮＱ１〜Ｎα３によ
る鋳塊は従来法〜α４〜Ｎα６による鋳塊よりも微細な
結晶粒からなり、鋳塊特性も優れている。As is clear from Table 1, the ingots produced by the methods NQ1 to Nα3 of the present invention have finer grains than the ingots produced by the conventional methods α4 to Nα6, and have superior ingot properties.
ざらに従来法Ｎα６で示すように鋳造が不可能であった
鋳造速度（１５ｍ／ｍ１ｎ）であっても本発明法によれ
ばＮα３で示すように良好な板材を製造できることが判
る。It can be seen that even at a casting speed (15 m/m1n), which was impossible to cast as shown by Nα6 in the conventional method, according to the method of the present invention, a good plate material as shown by Nα3 can be manufactured.
なお本発明法はｌ！−Ｃｕ合金に限らず、鉛。The method of the present invention is l! -Not limited to Cu alloys, but also lead.
錫もしくは鉄等の金属または合金についても同様に適用
できる。The same applies to metals or alloys such as tin or iron.
このように本発明によれば結晶粒径が微細かつ均一であ
り、ざらに鋳塊特性の良好な板状鋳塊が高い生産性の下
で製造できる等工業上顕著な効果を奏するものである。As described above, according to the present invention, a plate-shaped ingot with fine and uniform crystal grain size and good rough ingot properties can be produced with high productivity, and other remarkable industrial effects can be achieved. .
第１図は本発明法により連続鋳塊を製造する鋳造装置を
示す説明図、第２図は従来法で用いる鋳造装置を示す説
明図でおる。
１・・・・・・・・溶融金属
２．２°・・・・・・加熱ヒーター
３・・・・・・・・温度保持用タンデイツシュ４・・・
・・・・・溶融金属流出孔
５・・・・・・・・加熱部
６・・・・・・・・撹拌棒
７・・・・・・・・半凝固金属スラリー８・・・・・・
・・駆動ロール
９・・・・・・・・従動ロール
１０・・・・・・・・金属ベルト
１１・・・・・・・・冷却装置
１２・・・・・・・・テンションロール１３、１３°・
・・・完全凝固相
１４・・・・・・・・スキンロール
１５・・・・・・・・鋳塊
１６・・・・・・・・ローラーコンベア１７・・・・・
・・・鋳塊冷却装置
１８・・・・・・・・タンデイツシュ
１９・・・・・・・・出湯口
２０・・・・・・・・コイラ−
第１図
第２図
手続卆甫正書（自発）
平成１年５月２４日
１、事件の表示
昭和６３年 特許願 第１３９３９９号２、発明の名称
連 続 鋳 造 法
３、補正をする者
事件との関係 特許出願人
住 所 東京都千代田区丸の内２丁目６番１号名 称
（５２９）古河電気工業株式会社４、代理人
住 所 東京都千代田区神田北乗物町１６番地〒１０
１ 英ビル３階
６、補正の内容
（１）明細書第６頁下から２行に「過程おいて攪拌を」
とあるを、［過程において攪拌を」と訂正する。FIG. 1 is an explanatory diagram showing a casting apparatus for producing continuous ingots by the method of the present invention, and FIG. 2 is an explanatory diagram showing a casting apparatus used in the conventional method. 1...... Molten metal 2.2°... Heating heater 3... Temperature holding tray 4...
..... Molten metal outflow hole 5 ..... Heating section 6 ..... Stirring bar 7 ..... Semi-solid metal slurry 8 ....・
... Drive roll 9 ... ... Driven roll 10 ... ... Metal belt 11 ... Cooling device 12 ... Tension roll 13 13°・
...Complete solidification phase 14...Skin roll 15...Ingot 16...Roller conveyor 17...
... Ingot cooling device 18 ... Tundish 19 ...... Outlet 20 ... Coiler - Fig. 1 Fig. 2 Procedure booklet (Spontaneous) May 24, 1999 1. Indication of the case 1988 Patent Application No. 139399 2. Name of the invention Continuous Casting Law 3. Relationship with the person making the amendment case Patent applicant address Tokyo 2-6-1 Marunouchi, Chiyoda-ku Name (529) Furukawa Electric Co., Ltd. 4 Agent address 16-10 Kanda Kita Jimono-cho, Chiyoda-ku, Tokyo 10
1 Ei Building 3rd floor 6, Contents of amendment (1) 2 lines from the bottom of page 6 of the specification: ``Stir during the process''
Correct the statement to ``stir during the process.''
Claims (1)
に走行する金属ベルト上に半凝固金属スラリーを流し、
該金属ベルトを冷却することにより半凝固金属スラリー
を下面から冷却して凝固させ、さらに駆動ドラムの上方
に冷却されたスキンロールを設け、該スキンロールを金
属ベルトの速度と同じ周速度で回転して半凝固金属スラ
リーの上面に圧接することにより、半凝固金属スラリー
を上面から冷却して凝固させ、かつその凝固金属にわず
かな圧延加工を施して板状鋳塊を連続的に製造すること
を特徴とする連続鋳造法。(1) Semi-solid metal slurry is poured onto a metal belt that runs endlessly between a driving drum and a driven drum,
By cooling the metal belt, the semi-solid metal slurry is cooled and solidified from the bottom surface, and a cooled skin roll is provided above the drive drum, and the skin roll is rotated at the same circumferential speed as the speed of the metal belt. By press-welding the semi-solid metal slurry to the upper surface of the semi-solid metal slurry, the semi-solid metal slurry is cooled and solidified from the upper surface, and the solidified metal is subjected to a slight rolling process to continuously produce plate-shaped ingots. Characteristic continuous casting method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13939988A JPH01309760A (en) | 1988-06-08 | 1988-06-08 | Continuous casting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13939988A JPH01309760A (en) | 1988-06-08 | 1988-06-08 | Continuous casting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01309760A true JPH01309760A (en) | 1989-12-14 |
Family
ID=15244372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13939988A Pending JPH01309760A (en) | 1988-06-08 | 1988-06-08 | Continuous casting method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01309760A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995007780A1 (en) * | 1993-09-16 | 1995-03-23 | Rheo-Technology Ltd. | Method of manufacturing thin cast piece through continuous casting |
| WO2000044944A3 (en) * | 1998-06-10 | 2000-11-16 | Suraltech Inc | Processes for continuously producing fine grained metal compositions and for semi-solid forming of shaped articles |
| EP1245311A1 (en) * | 2001-03-26 | 2002-10-02 | Tetsuichi Motegi | Method and apparatus for production of platelike metal material |
-
1988
- 1988-06-08 JP JP13939988A patent/JPH01309760A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995007780A1 (en) * | 1993-09-16 | 1995-03-23 | Rheo-Technology Ltd. | Method of manufacturing thin cast piece through continuous casting |
| WO2000044944A3 (en) * | 1998-06-10 | 2000-11-16 | Suraltech Inc | Processes for continuously producing fine grained metal compositions and for semi-solid forming of shaped articles |
| EP1245311A1 (en) * | 2001-03-26 | 2002-10-02 | Tetsuichi Motegi | Method and apparatus for production of platelike metal material |
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