JPH0333053B2 - - Google Patents
Info
- Publication number
- JPH0333053B2 JPH0333053B2 JP60218291A JP21829185A JPH0333053B2 JP H0333053 B2 JPH0333053 B2 JP H0333053B2 JP 60218291 A JP60218291 A JP 60218291A JP 21829185 A JP21829185 A JP 21829185A JP H0333053 B2 JPH0333053 B2 JP H0333053B2
- Authority
- JP
- Japan
- Prior art keywords
- container
- water
- slab
- cooled
- cooling
- 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
- 239000002184 metal Substances 0.000 claims description 30
- 229910052751 metal Inorganic materials 0.000 claims description 30
- 239000007921 spray Substances 0.000 claims description 14
- 239000011261 inert gas Substances 0.000 claims description 12
- 238000005266 casting Methods 0.000 claims description 8
- 238000009749 continuous casting Methods 0.000 claims description 3
- 239000012809 cooling fluid Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 19
- 238000001816 cooling Methods 0.000 description 18
- 230000003647 oxidation Effects 0.000 description 9
- 238000007254 oxidation reaction Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 239000000112 cooling gas Substances 0.000 description 2
- -1 ferrous metals Chemical class 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000007712 rapid solidification Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000010959 steel Substances 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
- B22D11/0637—Accessories therefor
- B22D11/0697—Accessories therefor for casting in a protected atmosphere
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、鉄、非鉄金属或いはその合金等の溶
湯を急速凝固・冷却させて直接金属薄帯に成形す
る双ロール型連続鋳造装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a twin-roll continuous casting apparatus for rapidly solidifying and cooling molten metal such as iron, non-ferrous metals, or alloys thereof, and directly forming the molten metal into a thin metal strip.
鉄、非鉄金属または合金の連続鋳造において、
注出後の溶湯を急速に冷却凝固させる過程によつ
て、薄帯状鋳片への準安定相の形成、ミクロ偏析
の激減、組織の微細化等により、材質特性が大き
く改善されることが確認されている。
In continuous casting of ferrous, non-ferrous metals or alloys,
It has been confirmed that the process of rapidly cooling and solidifying the molten metal after pouring significantly improves the material properties by forming a metastable phase in the ribbon-shaped slab, drastically reducing micro-segregation, and refining the structure. has been done.
このような急冷金属薄帯の製造方法として、一
対の水冷ロール表面間に注湯し、これを急冷させ
て金属薄帯を得る方法が知られている。 As a method for producing such a rapidly cooled metal ribbon, a method is known in which a metal ribbon is obtained by pouring metal between the surfaces of a pair of water-cooled rolls and rapidly cooling the metal.
この場合、工程の雰囲気制御を行わないと、酸
化等により溶湯の清浄度が損なわれ、また凝固し
た鋳片の表面には酸化によつてスケールが形成さ
れてしまうという問題があつた。 In this case, if the atmosphere in the process is not controlled, the cleanliness of the molten metal will be impaired due to oxidation, etc., and scale will be formed on the surface of the solidified slab due to oxidation.
これに対し、雰囲気制御を行うとしても、水冷
ロールの直下に急速冷却を行う目的で水スプレー
帯を配備する場合には、この箇所の雰囲気制御を
行うことができず、またスプレーされた水が鋳片
の表面に悪影響を及ぼすことにもなる。 On the other hand, even if the atmosphere is controlled, if a water spray zone is installed directly below the water cooling roll for the purpose of rapid cooling, it is impossible to control the atmosphere at this location, and the sprayed water is This will also have an adverse effect on the surface of the slab.
このことから、特開昭59−199152号公報に記載
されているように、水スプレー帯に代えて水冷ロ
ールを鋳片冷却用として使用し、かつ注出直後か
ら鋳片搬送の初期過程での装置全体の雰囲気制御
を行う方法が提案されている。 For this reason, as described in JP-A No. 59-199152, water-cooled rolls are used instead of water spray zones for cooling slabs, and they are A method of controlling the atmosphere of the entire device has been proposed.
〔発明が解決しようとする問題点〕
しかしながら、雰囲気制御を行なつて溶湯の酸
化に基づく問題の一部を解消できても、鋳造用水
冷ロール直下の鋳片冷却は複数の鋳片冷却用水冷
ロールにより行うので、鋳片の冷却制御範囲が狭
く急冷効果が得られない。しかも温度変動に対す
る応答性も低いために、良好な材質特性を得るに
は問題がある。[Problems to be Solved by the Invention] However, even if some of the problems caused by oxidation of the molten metal can be solved by controlling the atmosphere, cooling of the slab directly under the casting water-cooled roll requires multiple water-cooled slabs to cool the slab. Since this is done using rolls, the control range for cooling the slab is narrow and a rapid cooling effect cannot be obtained. Moreover, since the responsiveness to temperature fluctuations is low, there is a problem in obtaining good material properties.
本発明は、かかる観点に基づいてなされたもの
で、鋳造を雰囲気制御下において行い且つ鋳造後
の鋳片薄帯を冷却制御することによつて、鋳片薄
帯の酸化を防ぐとともに、材質の向上を図ること
を目的とする。 The present invention was made based on this viewpoint, and by performing casting under atmosphere control and controlling the cooling of the cast strip after casting, the present invention prevents oxidation of the cast strip and improves the material quality. The purpose is to improve.
本発明は、不活性ガス雰囲気内に位置する一対
の水冷ロール間に注湯することにより金属薄帯を
鋳造し、かつ得られた直後の鋳造薄帯を不活性流
体により冷却制御することによつて、溶融金属の
注出から鋳造及びこれに続く冷却までの間の鋳片
の酸化を防止するとともに、不活性流体による冷
却制御の自在性を利用して材質特性の向上を図る
ものである。
The present invention casts a metal ribbon by pouring metal between a pair of water-cooled rolls located in an inert gas atmosphere, and controls the cooling of the cast ribbon immediately after it is obtained using an inert fluid. In this way, the oxidation of the slab during the period from pouring the molten metal to casting and subsequent cooling is prevented, and the material properties are improved by utilizing the flexibility of cooling control using an inert fluid.
不活性雰囲気にする手段としては、本体容器と
鋳片搬送容器とを開閉扉にて区分することによ
り、本体容器を予めできるだけ高真空に排気する
ことが可能であり、また鋳造開始とともに上記開
閉扉を開く際に、本体容器内の一次スプレー帯を
ガスカーテンとして機能させることにより鋳片搬
送容器内のガスが本体容器内に流入することを防
ぐものである。 As a means of creating an inert atmosphere, it is possible to evacuate the main container to as high a vacuum as possible in advance by separating the main container and the slab transport container with an opening/closing door. When the main container is opened, the primary spray zone inside the main container functions as a gas curtain to prevent the gas inside the slab transport container from flowing into the main container.
以下、図面に示す装置の一例に基づいて本発明
を説明する。
The present invention will be described below based on an example of the device shown in the drawings.
図中、１はレードル２の下位に配置した本体容
器で、内部にはタンデイツシユ３、その下位に配
置した一対の水冷ロール４、及びこの水冷ロール
４からの鋳片流れを挟むように位置する上部ガス
スプレー帯６を備えている。尚、水冷ロール４は
銅、銅合金または鋼材により形成される。 In the figure, reference numeral 1 denotes a main body container placed below the ladle 2, inside of which there is a tundish 3, a pair of water-cooled rolls 4 placed below it, and an upper gas chamber placed across the flow of slabs from the water-cooled rolls 4. It is equipped with a spray zone 6. Note that the water-cooled roll 4 is made of copper, copper alloy, or steel.
さらに、本体容器１はその内部を不活性ガス雰
囲気とするため、不活性ガス供給口７と真空ポン
プ（図示せず）に連通する吸引口８とを設け、下
部には不活性ガスで本体容器１内を置換する際に
閉じる開閉扉９を配置している。 Further, in order to create an inert gas atmosphere inside the main body container 1, an inert gas supply port 7 and a suction port 8 communicating with a vacuum pump (not shown) are provided, and an inert gas is provided at the bottom of the main body container 1. An opening/closing door 9 is disposed that is closed when replacing the inside of 1.
１０は本体容器１の下部に接続した鋳片搬送容
器で、本体容器１と同様に内部には下部ガススプ
レー帯１１を配置するとともに、不活性ガス供給
口１２と吸引口１３を設けている。１４は鋳片搬
送容器１０の出口側に配置したガイドロールであ
る。 Reference numeral 10 denotes a slab conveying container connected to the lower part of the main container 1, and like the main container 1, a lower gas spray zone 11 is arranged inside, and an inert gas supply port 12 and a suction port 13 are provided. Reference numeral 14 denotes a guide roll arranged on the exit side of the slab conveying container 10.
上記構成において、本体容器１内及び鋳片搬送
容器１０内を所定の真空度まで排気した後、アル
ゴンガス等を不活性ガス供給口７，１２から供給
し、それぞれの内部を予め不活性ガスに置換す
る。 In the above configuration, after the inside of the main body container 1 and the inside of the slab conveying container 10 are evacuated to a predetermined degree of vacuum, argon gas or the like is supplied from the inert gas supply ports 7 and 12 to preliminarily fill the inside of each with an inert gas. Replace.
次に、レードル２から清浄度を保たれた鉄、非
鉄金属、または合金の溶湯がタンデイツシユ３を
経て水冷ロール４隙間に注湯され、溶湯プール１
５を形成する。 Next, the molten metal of iron, nonferrous metal, or alloy whose cleanliness has been maintained is poured from the ladle 2 through the tundish 3 into the gap between the water-cooled rolls 4 and into the molten metal pool 1.
form 5.
水冷ロール４は矢印方向へ所定の速度で駆動回
転され、注出後の溶湯がこの水冷ロール４の表面
に接触して急冷凝固することにより金属薄帯１６
が得られる。 The water-cooled roll 4 is driven and rotated at a predetermined speed in the direction of the arrow, and the molten metal after pouring contacts the surface of the water-cooled roll 4 and rapidly solidifies, thereby causing the metal ribbon 16
is obtained.
さらに、金属薄帯１６は水冷ロール４の直下よ
り直ちに上部ガススプレー帯６及び下部ガススプ
レー帯１１により所望の冷却速度で急速冷却され
る。尚、使用する冷却ガスとしては、冷却能力が
高いヘリウムガスが適している。 Further, the metal ribbon 16 is rapidly cooled immediately below the water-cooled roll 4 by the upper gas spray zone 6 and the lower gas spray zone 11 at a desired cooling rate. Note that helium gas, which has a high cooling capacity, is suitable as the cooling gas to be used.
ここで、溶融金属の鋳造が行われる本体容器１
は、これに続く鋳片搬送容器１０に比べてできる
だけ高真空に排気することが望ましい。このた
め、開閉扉９により両容器の内部は気密状態に区
切られ、本実施例では、不活性雰囲気とするため
に本体容器１内は予め約10-2Torr、及び鋳片搬
送容器内１０は約数Torr程度の真空までそれぞ
れ排気される。 Here, a main body container 1 in which molten metal is cast
It is desirable to evacuate to as high a vacuum as possible compared to the following slab conveying container 10. For this reason, the interiors of both containers are separated in an airtight state by the opening/closing door 9, and in this embodiment, in order to create an inert atmosphere, the inside of the main container 1 is preset at approximately 10 -2 Torr, and the inside of the slab conveying container 10 is Each is evacuated to a vacuum of approximately several Torr.
開閉扉９は鋳造開始とともに開くが、上部ガス
スプレー帯６からのガス噴出方向を開閉扉９側に
指向させればガスカーテンとして機能し、鋳片搬
送容器１０内のガスが本体容器１内に流入するこ
とはなく、本体容器１内の不活性雰囲気を損なう
恐れはない。 The opening/closing door 9 opens with the start of casting, but if the direction of gas ejection from the upper gas spray zone 6 is directed toward the opening/closing door 9 side, it functions as a gas curtain, and the gas in the slab conveying container 10 flows into the main container 1. There is no possibility that the inert atmosphere inside the main container 1 will be damaged.
以上の鋳造過程において、注出後から水冷ロー
ル４による薄帯化及びこれに続く冷却段階までの
全てを不活性ガスによつて雰囲気制御するので、
金属薄帯１６を酸化やスケールの発生を伴うこと
なく製造できる。 In the above casting process, the atmosphere is controlled by inert gas throughout the entire process from pouring to the step of forming into a thin ribbon using the water-cooled roll 4 and the subsequent cooling step.
The metal ribbon 16 can be manufactured without oxidation or scale generation.
また、水冷ロール４による急冷凝固過程後の上
部及び下部ガススプレー帯６，１１での冷却過程
では、噴出するガスの流量制御及び使用冷却ガス
の種類を変えれば、巾広い金属薄帯１６の冷却制
御を行うことができる。 In addition, in the cooling process in the upper and lower gas spray zones 6 and 11 after the rapid solidification process by the water-cooled roll 4, by changing the flow rate control of the ejected gas and the type of cooling gas used, it is possible to cool the wide metal ribbon 16. can be controlled.
従つて、不活性雰囲気による酸化防止によつて
金属薄帯１６を清浄に保つことができ、しかも不
活性流体を噴出する上部、下部ガススプレー帯
６，１１による金属薄帯１６の冷却制御の自在性
を利用することによつて材質特性の向上を図るこ
とができる。 Therefore, the metal ribbon 16 can be kept clean by preventing oxidation using an inert atmosphere, and the cooling of the metal ribbon 16 can be freely controlled by the upper and lower gas spray zones 6 and 11 that eject inert fluid. By utilizing this property, material properties can be improved.
本発明によれば、雰囲気制御の中での鋳造によ
り鋳片の酸化を防止して酸化物のない清浄なもの
に保つことができ、また急冷凝固効果による材質
特性の優れた金属薄帯の製造ができる。
According to the present invention, by casting in a controlled atmosphere, it is possible to prevent the oxidation of the slab and keep it clean without oxides, and also to produce metal ribbon with excellent material properties due to the rapid solidification effect. I can do it.
そして、本体容器と鋳片搬送容器とを開閉扉に
て区分することにより、本体容器を予めできるだ
け高真空に排気することが可能であり、また鋳造
開始とともに上記開閉扉を開く際に、本体容器内
の一次スプレー帯をガスカーテンとして機能させ
ることにより鋳片搬送容器内のガスが本体容器内
に流入することを防止できる。このことにより、
鋳片の酸化清浄を殆ど決定づける本体容器の不活
性ガス雰囲気を完全に維持できる。 By separating the main container and the slab transport container with an opening/closing door, it is possible to evacuate the main container to as high a vacuum as possible in advance. By making the primary spray zone inside function as a gas curtain, it is possible to prevent the gas in the slab conveying container from flowing into the main container. Due to this,
The inert gas atmosphere in the main vessel, which determines the oxidation cleaning of the slab, can be completely maintained.
図面は本発明の装置の一実施態様例を示す概略
断面図である。
１：本体容器、２：レードル、３：タンデイツ
シユ、４：水冷ロール、６：上部ガススプレー
帯、７：不活性ガス供給口、８：吸引口、９：開
閉扉、１０：鋳片搬送容器、１１：下部ガススプ
レー帯、１２：不活性ガス供給口、１３：吸引
口、１４：ガイドロール、１５：溶湯プール、１
６：金属薄帯。
The drawing is a schematic sectional view showing an embodiment of the device of the present invention. 1: Main body container, 2: Ladle, 3: Tundish, 4: Water-cooled roll, 6: Upper gas spray zone, 7: Inert gas supply port, 8: Suction port, 9: Opening/closing door, 10: Slab transport container, 11: Lower gas spray zone, 12: Inert gas supply port, 13: Suction port, 14: Guide roll, 15: Molten metal pool, 1
6: Metal thin strip.
Claims (1)
ロールを収納した本体容器と、該本体容器の下部
に開閉扉を介して接続され前記水冷ロールからの
薄帯鋳片を搬送するための空間を設けた鋳片搬送
容器とを備え、両容器内を不活性雰囲気にするた
めの不活性ガス供給源に接続するとともに、前記
薄帯鋳片に向けて不活性の冷却流体を噴出する一
次スプレー帯を本体容器内の前記水冷ロールの直
下に設置し、搬送容器内に二次スプレー帯を設置
したことを特徴とする双ロール型連続鋳造装置。1. A main container housing a pair of water-cooled rolls for casting molten metal into a thin strip, and a space connected to the lower part of the main container via an opening/closing door for transporting the thin strip cast from the water-cooled rolls. and a slab conveying container provided with a strip conveyance container, connected to an inert gas supply source to create an inert atmosphere inside both containers, and a primary sprayer for spouting an inert cooling fluid toward the ribbon slab. A twin-roll type continuous casting apparatus characterized in that a belt is installed directly below the water-cooled roll in a main container, and a secondary spray belt is installed in a conveyance container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21829185A JPS6277151A (en) | 1985-09-30 | 1985-09-30 | Method and apparatus for twin roll type continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21829185A JPS6277151A (en) | 1985-09-30 | 1985-09-30 | Method and apparatus for twin roll type continuous casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6277151A JPS6277151A (en) | 1987-04-09 |
| JPH0333053B2 true JPH0333053B2 (en) | 1991-05-15 |
Family
ID=16717533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21829185A Granted JPS6277151A (en) | 1985-09-30 | 1985-09-30 | Method and apparatus for twin roll type continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6277151A (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5259443A (en) * | 1987-04-21 | 1993-11-09 | Nippon Yakin Kogyo Co., Ltd. | Direct production process of a length of continuous thin two-phase stainless steel strip having excellent superplasticity and surface properties |
| EP0460234B1 (en) * | 1989-12-25 | 1997-05-02 | Nippon Steel Corporation | Sheet of titanium-aluminum intermetallic compound and process for producing the same |
| JP3172187B2 (en) * | 1992-04-24 | 2001-06-04 | 石川島播磨重工業株式会社 | Continuous strip casting method and apparatus |
| DE4407873C2 (en) * | 1994-03-04 | 1997-04-10 | Mannesmann Ag | Method and device for cooling molten steel |
| BR9505866A (en) † | 1994-03-25 | 1996-02-21 | Nippon Steel Corp | Process for production of thin cast strip |
| AU2877495A (en) * | 1994-07-08 | 1996-02-09 | Ipsco Inc. | Method of casting and rolling steel using twin-roll caster |
| AUPN101495A0 (en) * | 1995-02-10 | 1995-03-09 | Bhp Steel (Jla) Pty Limited | Casting steel strip |
| AUPN733095A0 (en) * | 1995-12-22 | 1996-01-25 | Bhp Steel (Jla) Pty Limited | Twin roll continuous caster |
| FR2757790B1 (en) * | 1996-12-31 | 1999-01-22 | Usinor | PROCESS FOR CONTINUOUS CASTING OF THIN METAL STRIPS BETWEEN TWO CYLINDERS, AND INSTALLATION FOR IMPLEMENTING SAME |
| CH691576A5 (en) * | 1999-09-24 | 2001-08-31 | Main Man Inspiration Ag | Belt casting machine for producing a metal belt. |
| AUPQ436299A0 (en) * | 1999-12-01 | 1999-12-23 | Bhp Steel (Jla) Pty Limited | Casting steel strip |
| JP4542247B2 (en) * | 2000-08-08 | 2010-09-08 | キャストリップ・リミテッド・ライアビリティ・カンパニー | Strip continuous casting apparatus and method of using the same |
| AU2001287473A1 (en) * | 2000-09-19 | 2002-04-02 | Main Management Inspiration Ag | Strip casting machine for production of a metal strip |
| US6860317B2 (en) | 2000-10-31 | 2005-03-01 | Korea Atomic Energy Research Institute | Method and apparatus for producing uranium foil and uranium foil produced thereby |
| AU2003226348B2 (en) * | 2002-04-12 | 2008-09-18 | Castrip, Llc | Casting steel strip |
| KR100862792B1 (en) * | 2002-08-30 | 2008-10-13 | 주식회사 포스코 | An apparatus and method for preventing the high temperature oxidation of strip in twin-roll strip caster |
| CN103100674A (en) * | 2012-11-29 | 2013-05-15 | 一重集团大连设计研究院有限公司 | Combination-type side sealing device of horizontal double-roller continuous casting machine |
| CN105728676B (en) * | 2016-04-05 | 2018-06-08 | 江苏国能合金科技有限公司 | Amorphous thin ribbon equipment molten iron whole process gas protection system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5516752A (en) * | 1978-07-24 | 1980-02-05 | Nippon Steel Corp | Directly rolling molten steel to thin sheet |
| JPS5699054A (en) * | 1980-01-07 | 1981-08-10 | Kawasaki Steel Corp | Manufacturing apparatus and method of quench-freezed sheet hoop |
-
1985
- 1985-09-30 JP JP21829185A patent/JPS6277151A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5516752A (en) * | 1978-07-24 | 1980-02-05 | Nippon Steel Corp | Directly rolling molten steel to thin sheet |
| JPS5699054A (en) * | 1980-01-07 | 1981-08-10 | Kawasaki Steel Corp | Manufacturing apparatus and method of quench-freezed sheet hoop |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6277151A (en) | 1987-04-09 |
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