JPS59220257A - Belt pulling up type continuous casting device for thin sheet - Google Patents

Belt pulling up type continuous casting device for thin sheet

Info

Publication number
JPS59220257A
JPS59220257A JP9402883A JP9402883A JPS59220257A JP S59220257 A JPS59220257 A JP S59220257A JP 9402883 A JP9402883 A JP 9402883A JP 9402883 A JP9402883 A JP 9402883A JP S59220257 A JPS59220257 A JP S59220257A
Authority
JP
Japan
Prior art keywords
molten metal
slab
belt
sump
billet
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
Application number
JP9402883A
Other languages
Japanese (ja)
Inventor
Hiroshi Muramoto
邑本　廣志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP9402883A priority Critical patent/JPS59220257A/en
Publication of JPS59220257A publication Critical patent/JPS59220257A/en
Pending legal-status Critical Current

Links

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
    • 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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

PURPOSE:To enable quick cooling and to reduce an initial cost by transferring a molten metal from a molten metal well onto an endless belt and bringing small water droplets (mists) into contact with the billet right after solidification. CONSTITUTION:The molten metal 7 cooled by a cooler 2 attached to an endless belt 1 moves toward the direction of an arrow 8b and solidifies. Both top and bottom surfaces of a billet 8 are forcibly cooled by the flow of mists when the billet 8 right after pulling up from a molten metal well 5 passes through mist passages 13, 19, by which the temp. of the billet 8 is decreased. The billet 8 is quickly cooled by such device, by which the place for the above-described force cooling is narrowed and the initial cost is reduced.

Description

【発明の詳細な説明】 〔本発明の技術分野〕 本発明は、金属、合金、ガラス、プラスチックなどの薄
板、特に金属や合金の薄板の製造に適用するベルト式薄
板連続鋳造装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a belt-type continuous thin plate casting apparatus that is applied to the production of thin plates of metals, alloys, glass, plastics, etc., particularly thin plates of metals and alloys.

〔従来装置〕[Conventional device]

従来のベルト式薄板連続鋳造装置ケ第１図（平面図）及
び第２図（第１図の中央断面図）に基づいて説明する。A conventional belt-type continuous thin plate casting apparatus will be explained based on FIG. 1 (plan view) and FIG. 2 (center sectional view of FIG. 1).

水平軸まわりに回転し、高さを異にして置かれた２ケの
プーリ３，４にエンドレスベルト１が巻掛けられている
。該プーリ３，４はベルト１に張力を与え、両プーリの
間に張られたベルトを平面に保っている。プーリ３はプ
ーリ４よりも高位に置かれているので、前記ベルト平面
部は、プーリ３の側が高くなるように傾斜している。An endless belt 1 is wound around two pulleys 3 and 4 that rotate around a horizontal axis and are placed at different heights. The pulleys 3 and 4 apply tension to the belt 1 and keep the belt stretched between both pulleys flat. Since the pulley 3 is placed higher than the pulley 4, the belt plane portion is inclined so that the pulley 3 side is higher.

上側のベルト傾斜平面に、湯だめの三方の壁５ａ、　５
ｂ、　５ｃの下端面が密着して置かれ、該ベルト傾斜平
面が湯だめ底を形成する。湯だめの三方の壁のうち、後
壁５ａは低位のプーリ４の近くにあり、左右側壁５ｂ、
５ｃは該後壁５ａから高位のプーリ３の方へ、ブーり軸
に対して直角な方向に延びている。前記底板（ベルト傾
斜平面）と後壁は組合わさってあたかも三角屋根を転倒
させた形状になっておυ、その側方を左右２つの側壁５
ｂ、５ｃで塞ぎ、容器を形づくっている。On the upper belt inclined plane, three walls 5a, 5 of the bath
The lower end surfaces of b and 5c are placed in close contact, and the inclined plane of the belt forms the bottom of the sump. Of the three walls of the bathtub, the rear wall 5a is located near the lower pulley 4, and the left and right side walls 5b,
5c extends from the rear wall 5a towards the higher pulley 3 in a direction perpendicular to the pulley axis. The bottom plate (belt inclined plane) and the rear wall are combined to form a shape similar to an overturned triangular roof.
b and 5c to form a container.

湯溜めの後壁５ａの上方には注湯とい６が配設されてい
る。注湯とい６の後端部は図示しないと多べの溶湯を受
けとることができるようになっている。A pouring gutter 6 is disposed above the rear wall 5a of the hot water reservoir. The rear end of the pouring gutter 6 is capable of receiving a large amount of molten metal (not shown).

プーリ３の両端には、支軸が突出しておシ、この部分を
軸受（図示せず）によって両支え方式で回転自在に支持
する。プーリ３は支軸を介して図示しない駆動源につな
がって、矢印３ａ方向の回転運動を与えられる。A support shaft protrudes from both ends of the pulley 3, and this portion is rotatably supported by bearings (not shown) in a double support manner. The pulley 3 is connected to a drive source (not shown) via a support shaft, and is given rotational motion in the direction of an arrow 3a.

湯溜めの底面を形成する「ベルト傾斜平面」の裏側に冷
却装置２が配設されている。冷却装置２には、その入口
から冷却水が矢印２ａのように流入し２ｂを経てベルト
裏面に沿って流れ、２ｃ、２ｄを経て排出される。A cooling device 2 is disposed on the back side of the "belt inclined plane" forming the bottom surface of the water reservoir. Cooling water flows into the cooling device 2 from its inlet as shown by an arrow 2a, flows along the back surface of the belt via 2b, and is discharged via 2c and 2d.

上位側プーリ３の前方の矢印８ｂの方向の離れた位置に
は、図示しない鋳片引上装置が配設されている。該鋳片
引上装置は湯だめ底（平面）の延長線上に位置しており
、それが鋳片を溶湯から引上げる方向及び速度は、湯だ
め底（平面）の移動方向及び速度に等しい０ とりべ（図示せず）から溶湯が注湯とい６の一端部に流
入する。その溶湯は注湯とい６の溝部を７ａの如く流下
して他端に至シ、そこから落下流７ｂとなる。A slab pulling device (not shown) is disposed in front of the upper pulley 3 at a remote position in the direction of the arrow 8b. The slab pulling device is located on an extension of the sump bottom (plane), and the direction and speed in which it pulls up the slab from the molten metal are equal to the moving direction and speed of the sump bottom (plane). Molten metal flows into one end of pouring gutter 6 from a ladle (not shown). The molten metal flows down the groove of the pouring gutter 6 as indicated by 7a, reaches the other end, and becomes a falling flow 7b from there.

落下流７ｂは、その下方の湯溜めの中に入って滞留する
。The falling flow 7b enters the water reservoir below and stays there.

湯溜めの底面（ベルトの傾斜平面）は冷却装置２によっ
て強く水冷されているので、その付近の溶湯は熱を奪わ
れ固化する。固化層は冷却時間が長くなると厚くなる。Since the bottom surface of the sump (the inclined plane of the belt) is strongly water-cooled by the cooling device 2, the molten metal in the vicinity is deprived of heat and solidifies. The solidified layer becomes thicker as the cooling time increases.

従って、湯溜めの下部での固液境界面は第２図８ａの２
点鎖線の如くになる。何故ならば、湯溜めの底面を形成
しているベルトの傾斜平面とその近傍の溶鋼は常に矢印
８ｂの方向に移動しているので、湯溜めの後壁５ａから
の距離に比例して、近傍の溶鋼に対する冷却時間が長く
なるからである。Therefore, the solid-liquid interface at the bottom of the sump is 2 in Figure 2, 8a.
It will look like a dotted chain line. This is because the inclined plane of the belt that forms the bottom of the sump and the molten steel in its vicinity are always moving in the direction of arrow 8b, so the distance from the rear wall 5a of the sump is This is because the cooling time for the molten steel becomes longer.

固化層が斜め上方に移動して、溶湯の自由表面との交わ
シ（第２図７ｄで示す汀線）を超えたとき固化層の成長
は終了する。The growth of the solidified layer ends when the solidified layer moves obliquely upward and crosses the intersection with the free surface of the molten metal (the shore line shown in FIG. 2, 7d).

湯溜めの底面を形成している「ベルトの傾斜平面」の移
動は、プーリ３の回転によって与えられる。Movement of the "belt inclined plane" forming the bottom of the sump is provided by the rotation of the pulley 3.

また、その部分の冷却は冷却装置２へ冷却水を通水する
ことによってなされる〇 鋳片８の矢印８ｂ方向への移動は、図示しない引上げ装
置に鋳片８を連結することによってなされる。この引上
げ装置による矢印８ｂ方向への移動速度は、湯溜めの底
面を形成している「ベルトの傾斜平面」の同方向移動速
度と同一になっている。Cooling of that part is achieved by passing cooling water through the cooling device 2. Movement of the slab 8 in the direction of the arrow 8b is achieved by connecting the slab 8 to a pulling device (not shown). The speed of movement in the direction of arrow 8b by this pulling device is the same as the speed of movement in the same direction of the "slanted plane of the belt" forming the bottom of the sump.

鋳片８を溶湯中から引上げることによシ、湯溜め内の溶
湯量は減少するが、その減少量と等、　しい量を注湯装
置から７ａ、７ｂの流れとして注入することによシ、湯
溜め内の溶湯レベルを一定に保っている。By pulling up the slab 8 from the molten metal, the amount of molten metal in the sump decreases, but this decrease can be compensated for by injecting the new amount from the pouring device as flows 7a and 7b. , to maintain a constant level of molten metal in the sump.

溶湯中から引上けられた鋳片８は、空中に放熱冷却し７
つ＼鋳片引上げ装置へと移動し、そわを通過したのち次
の加工工程へ移行する。The slab 8 pulled up from the molten metal is radiated into the air and cooled 7.
After moving to the slab pulling device and passing through the cracks, it moves on to the next processing step.

〔従来装置の欠点〕[Disadvantages of conventional equipment]

鋳片は、湯だめから引上けられたのち自然放冷されてい
るので鋳片の温度が下りにくい０その結果、湯だめから
、鋳片引上げ装置までの距離を長くしないと、次の問題
が起る０１）＠片引上げ装置が過熱される。Since the slab is naturally cooled after being pulled up from the sump, it is difficult for the temperature of the slab to drop.As a result, unless the distance from the sump to the slab pulling device is increased, the following problem will occur. Occurs 01) @One side lifting device is overheated.

１１）一般的に使用されるピンチロール式鋳片引上げ装
置では、鋳片表面の硬度不足によるロールスリップ（運
転障害）やロール圧着による塑性変形（鋳片の表面損傷
）が生じる。11) In a commonly used pinch roll type slab pulling device, roll slip (operation failure) due to insufficient hardness of the slab surface and plastic deformation (surface damage to the slab) due to roll compression occur.

これ等の問題を防ぐのに十分な距離を湯だめと鋳片引上
げ装置の間にとると、設備据付面積が非常に大きくなシ
費用がかさむことになる。Providing a sufficient distance between the sump and the slab pulling device to prevent these problems would result in a very large installation area and increased costs.

〔本発明の目的〕[Object of the present invention]

本発明の目的は、上記従来装置の欠点を解消するベルト
引上式薄板連続鋳造装置を提供するＫある。すなわち本
発明の目的は、湯だめから引上げた鋳片を、直ちに強制
冷却することによって、鋳片温度を急速に低下させ、湯
だめと鋳片引上げ装置の距離を短縮させ、設備据付面積
を減少するベルト引上式薄板連続鋳造装置を提供するに
ある。It is an object of the present invention to provide a belt-pulling type continuous thin plate casting apparatus that eliminates the drawbacks of the conventional apparatus described above. In other words, the purpose of the present invention is to rapidly lower the temperature of the slab by immediately forcedly cooling the slab pulled from the sump, shorten the distance between the sump and the slab pulling device, and reduce the equipment installation area. The purpose of the present invention is to provide a belt-pulling type continuous thin plate casting device.

〔本発明の構成〕 本発明は、上記目的を達成するために、湯だめから引上
けた直後の鋳片の上下両面に、小さな水滴を分散させた
気流を冒速で接触流通させるようにしたものである。す
なわち、本発明は、冷却装置を付設したエンドレスベル
ト上に、湯だめ中の溶湯を移送して鋳片を製造するベル
ト引上式連続鋳造装置において、湯だめから引上げた直
後の鋳片の上下両面に、小さな水滴を分散させた気流を
高速で接触流通させる装置を配設することを特徴とする
ベルト引上式薄板連続鋳造装置に関するものである。[Structure of the present invention] In order to achieve the above-mentioned object, the present invention is arranged so that an air current containing small water droplets dispersed therein is brought into contact with and circulated at a high velocity on both the upper and lower surfaces of the cast slab immediately after it has been pulled up from the sump. It is something. That is, the present invention provides a continuous belt-drawing type continuous casting device that manufactures slabs by transferring molten metal in a sump onto an endless belt equipped with a cooling device. This invention relates to a belt-pulling type continuous thin plate casting apparatus characterized in that devices are disposed on both sides of the apparatus for causing airflow in which small water droplets are dispersed to contact and flow at high speed.

実施例 第３図は本発明の実施例を示す装置の側面図であり、第
４図は第５図の■−■断面図である０上位側のプーリ３
から離れた前方には鋳片引上ケ装置のピンチロール２．
２．２３が配設されている。これらは溶湯から引上けら
れた鋳片８を所定圧着力で挾み、図示しない駆動装置に
よって、それぞれ矢印２２ａ、２３ａ　　の向きに回転
させられる。Embodiment FIG. 3 is a side view of a device showing an embodiment of the present invention, and FIG. 4 is a sectional view taken along the line ■-■ of FIG.
At the front, away from the 2.
2.23 is installed. These clamp the slab 8 pulled up from the molten metal with a predetermined pressing force, and are rotated in the directions of arrows 22a and 23a, respectively, by a drive device (not shown).

湯だめ前部からピンチロール２２の間には、鋳片８に上
からかぶさるように流路おおい１４が配設されている。A channel cover 14 is disposed between the front part of the sump and the pinch rolls 22 so as to cover the slab 8 from above.

またプーリ３の直前からピンチロール２３の間には、鋳
片８を下から受けるように流路おおい２０が配設されて
いる。Further, a channel cover 20 is disposed from just before the pulley 3 to between the pinch rolls 23 so as to receive the slab 8 from below.

これらの流路おおい１１１．２０はいずわも３方を塞ぐ
壁材であシ、残る一方は鋳片８が流路壁を兼ね、これら
４方の壁がミスト流路１３．１９を形成している。These channel covers 111.20 are wall materials that close off all three sides, and the slab 8 on the remaining one also serves as the channel wall, and these four walls form the mist channel 13.19. ing.

ミスト流路１３，１９１Ｃは、夫々ミスト発生部１１．
１７が連通している。The mist flow paths 13 and 191C are connected to the mist generating section 11.
17 are connected.

ミスト流路１３に連通しているミスト発生部１１には搬
送気流供給孔１０から搬送気体が高速で流入し、冷却水
供給孔９から冷却水が流入し、搬送気流中に小さな水滴
となって分散していわゆるミストを生じる。Carrier gas flows at high speed from the carrier airflow supply hole 10 into the mist generation section 11 communicating with the mist flow path 13, and cooling water flows from the cooling water supply hole 9, forming small water droplets in the carrier airflow. It disperses and creates a so-called mist.

該ミストは、ミスト流路１２．１３を経て鋳片８の上面
から熱を奪って水滴を気化妊せつ＼、ピンチロール２２
に近い出口に至って大気中ＶＣ″散逸する。The mist passes through the mist channels 12 and 13, removes heat from the upper surface of the slab 8, and vaporizes the water droplets.
The VC'' is dissipated into the atmosphere by reaching an outlet near the .

ミスト流路１９に連通して−るミスト発生部１７には搬
送気流供給孔１６から搬送気体が高速で流入し、冷却水
供給孔１５から冷却水が流入し、搬送気流中に小さな水
滴となって分散していわゆるミストを生じる。該ミスト
は、ミスト流路ＩＪ１９を経て鋳片８の下面から熱を奪
って水滴を気化させつ＼プーリ３に近い側方開口２１に
至って大気中に散逸する。Carrier gas flows at high speed from the carrier airflow supply hole 16 into the mist generating section 17 communicating with the mist flow path 19, and cooling water flows from the cooling water supply hole 15, forming small water droplets in the carrier airflow. It disperses and forms a so-called mist. The mist passes through the mist channel IJ19, absorbs heat from the lower surface of the slab 8, vaporizes water droplets, and reaches the side opening 21 near the pulley 3, where it is dissipated into the atmosphere.

湯だめ内の溶湯内から引上げられた鋳片は、ピンチロー
ル２２，２３によって、湯ため底のベルトと同一速度で
同一方向に移動し、次の加工工程へ移送される。この移
動の途中、ミスト流路１３．１９を通過する際に、前記
ミストの流れによって、鋳片８の上下面が強制冷却され
る。The slab pulled up from the molten metal in the sump is moved by pinch rolls 22 and 23 at the same speed and in the same direction as the belt at the bottom of the sump, and is transferred to the next processing step. During this movement, the upper and lower surfaces of the slab 8 are forcibly cooled by the flow of the mist as it passes through the mist channels 13 and 19.

〔本発明の効果〕[Effects of the present invention]

本発明は、以上詳記したように、湯だめ内の溶湯から引
上げられ、鋳片引上装置に至る間に鋳片上下面がミスト
の流れと接触して強制冷却されるので、自然放冷や気流
単独強制冷却よシも速やかに鋳片温度を下げることがで
きる０その結果、湯だめから鋳片引上装置までの距離を
、自然放冷や気流単独強制冷却よシも縮少することがで
き、設備費を節減できる。As described in detail above, the present invention allows the upper and lower surfaces of the slab to be forcibly cooled by coming into contact with the flow of mist while being pulled up from the molten metal in the sump and reaching the slab pulling device. The temperature of the slab can be lowered quickly even with independent forced cooling.As a result, the distance from the sump to the slab pulling device can be reduced even with natural cooling or forced airflow independent cooling. Equipment costs can be reduced.

また上下面のミスト流路を独立に構成しているので冷却
能力を上下面で別々に詞整し、鋳片の熱変形による曲り
を制御することも容易に行うことができるなど顕著な効
果が生ずるものである。In addition, since the mist channels on the upper and lower surfaces are configured independently, the cooling capacity can be adjusted separately for the upper and lower surfaces, and it is possible to easily control the bending of the slab due to thermal deformation. It is something that occurs.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来のベルト引上式薄板連続鋳造装置の平面図
であシ、第２図は第１図の中央断面図である。第３図は
本発明の実施例である装置の側面図であシ、第４図は第
３図の■−■断面図であって、ダクトの正面図を示す。 １　・・・・・　エンドレスベルト ２・・・・・冷却装置 ３．４・・―・プーリ ５・・・・・湯だめ ６・・・・・注湯とい ７・・・・・溶　湯 ８　・・・・・鋳　片 ９１５・・・・・　冷却水供給孔 １０．１６・・・・・　搬送気流供給孔１１．１７・・
・・・　ミスト発生部 １２．１３・・・・・　ミスト通路 １８．１９・・・・・　ミスト通路 １４．２０・・・・・　流路おおい ２１　　・・・・・側方開口 ２２、２３・・・・・　ピンチロール 復代理人　　内　１）　　　明 復代理人　　萩　原　亮　−FIG. 1 is a plan view of a conventional belt-pulling continuous thin plate casting apparatus, and FIG. 2 is a sectional view of the center of FIG. 1. FIG. 3 is a side view of an apparatus that is an embodiment of the present invention, and FIG. 4 is a cross-sectional view taken along the line -■ in FIG. 3, showing a front view of the duct. 1... Endless belt 2... Cooling device 3.4... Pulley 5... Hot water sump 6... Pouring channel 7... Molten metal 8 ... Slab 915 ... Cooling water supply hole 10.16 ... Conveying air flow supply hole 11.17 ...
... Mist generating section 12.13... Mist passage 18.19... Mist passage 14.20... Channel cover 21... Side openings 22, 23... ... Pinch roll sub-agent 1) Meifuku agent Ryo Hagiwara −

Claims (1)

【特許請求の範囲】[Claims] 冷却装置を付設したエンドレスベルト上に、湯だめ中の
溶湯を移送して鋳片を製造するベルト引上式連続鋳造装
置において、湯だめから引上げた直後の鋳片の上下両面
に、小さな水滴を分散させた気流を高速で接触流通させ
る装置を配設することを特徴とするベルト引上式薄板連
続鋳造装置。In belt-drawing continuous casting equipment, which manufactures slabs by transferring molten metal in a sump onto an endless belt equipped with a cooling device, small water droplets are placed on both the top and bottom of the slab immediately after it is pulled from the sump. A belt-pulling type thin plate continuous casting apparatus characterized by being equipped with a device that allows dispersed airflow to contact and flow at high speed.
JP9402883A 1983-05-30 1983-05-30 Belt pulling up type continuous casting device for thin sheet Pending JPS59220257A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9402883A JPS59220257A (en) 1983-05-30 1983-05-30 Belt pulling up type continuous casting device for thin sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9402883A JPS59220257A (en) 1983-05-30 1983-05-30 Belt pulling up type continuous casting device for thin sheet

Publications (1)

Publication Number Publication Date
JPS59220257A true JPS59220257A (en) 1984-12-11

Family

ID=14099105

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9402883A Pending JPS59220257A (en) 1983-05-30 1983-05-30 Belt pulling up type continuous casting device for thin sheet

Country Status (1)

Country Link
JP (1) JPS59220257A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6216851A (en) * 1985-07-16 1987-01-26 Nippon Steel Corp Device for casting thin sheet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6216851A (en) * 1985-07-16 1987-01-26 Nippon Steel Corp Device for casting thin sheet
JPH0555218B2 (en) * 1985-07-16 1993-08-16 Nippon Steel Corp

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