JPS5966954A - Roll for production of quickly cooled light-gage strip - Google Patents

Roll for production of quickly cooled light-gage strip

Info

Publication number
JPS5966954A
JPS5966954A JP17717882A JP17717882A JPS5966954A JP S5966954 A JPS5966954 A JP S5966954A JP 17717882 A JP17717882 A JP 17717882A JP 17717882 A JP17717882 A JP 17717882A JP S5966954 A JPS5966954 A JP S5966954A
Authority
JP
Japan
Prior art keywords
sleeve
roll
gap
cold
crown
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
JP17717882A
Other languages
Japanese (ja)
Inventor
Masao Yukimoto
正雄 行本
Kiyoshi Shibuya
清 渋谷
Takahiro Suga
菅 孝宏
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP17717882A priority Critical patent/JPS5966954A/en
Publication of JPS5966954A publication Critical patent/JPS5966954A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12Accessories for subsequent treating or working cast stock in situ
    • B22D11/128Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1287Rolls; Lubricating, cooling or heating rolls while in use

Landscapes

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

Abstract

PURPOSE:To prevent a heat crown and to produce stably a quickly cooled light- gage strip having a good shape characteristic by providing a spacing between a sleeve and a roll body so that the sleeve deforms elastically to the inside. CONSTITUTION:A space 11 is provided between the inside circumferential end face 10A of the partition wall of a sleeve 6 and the outside circumferential surface 4A of a roll body. The sleeve 6 is permitted to deflect inward and since the sleeve 6 is made of a relatively soft material such as copper or a copper alloy, the central part of the sleeve 6 curves elastically inward by as much as the crown generated by the roll reaction. The outside circumferential surface of the sleeve 6 is thus maintained at the initial profile or at least the heat crown is decreased.

Description

【発明の詳細な説明】[Detailed description of the invention]

この発明は、溶融全屈をノズルから高1c噴出さけで、
ぞの???lt金居をi”i速で回転しでいる[1−ル
の外周面(に急激に接触させることにより超高速で凝固
させ、急iri薄帯を製造する技Hiに凹し、特にその
1′11j貫に使用される[l−ルリなわち急冷薄帯す
I73fi川のロールに門するものである。 岳近(:二至り、3〜8川但用のS;を含有リ−る高珪
素11の薄帯をテ′1端する技tfiの一つどして、通
常のスラブから熱間圧延曳)冷間圧延にJ、す―°1造
づる方法に代え、前述のJ:うfK急冷凝固法により高
珪素jN溶口から直接薄いリボン状のjQ帯を(9る方
法が開弁されでいる。また最近で1.1.非晶71金居
、TJなわちアモルファス金属の薄帯を製造する場合に
おい゛(も上)本のような急冷凝固法が採用されている
。 ところでこのような急冷凝固法どしては、甲−の1−ル
の外周面上に溶融金属を噴出させる甲ロール法と、狭い
ギVツブをもって下行にNi!FMされた一対のロール
のギVツブ上方から溶融金属を噴出させる双ロール法と
があるが、いずれもロールの外周面に接触した高)島の
′PI向金Bを速つかに冷却凝固する必要があり、その
ため通常は
This invention is capable of ejecting molten liquid at a height of 1c from a nozzle.
Zono? ? ? The method of producing a rapidly solidified ribbon by rapidly bringing the metal plate into contact with the outer circumferential surface of the metal plate at an ultra-high speed and producing a rapidly formed thin ribbon is particularly important. It is used for the roll of the I73fi river, which is used for quenching thin strips. As one of the techniques for making a thin strip of silicon 11, the above-mentioned J:UfK method is used instead of the method of cold rolling from a normal slab to hot rolling. A method has been developed in which a thin ribbon-shaped JQ band is produced directly from a high-silicon JN melt by a rapid solidification method.Recently, 1.1. When manufacturing molten metal, a rapid solidification method as shown in the above is used.By the way, in such a rapid solidification method, molten metal is injected onto the outer circumferential surface of the first hole. There are two methods: the instep roll method, in which the molten metal is jetted from above the gib V-tube of a pair of rolls that are Ni!FMed downward with a narrow gib V-tube, but in both cases, the high ) It is necessary to quickly cool and solidify the island's PI metal B, so usually

【−1−ルの内部に冷却水を循環させ、ロー
ルの内部からlJi熱覆る方法が採用されている。この
ような内部冷110−ルどしては、例えば第1図に示り
−よ−)に[]−ル1の内側全体を中空2どした中空ス
リーブ11−ルが知られている。このロール1にd3い
l’ 1.1. 、 tN造が簡単で比較的安価な利点
IJ、あるものの、冷川水3が大断面fl’lの中空部
2を流れるため、冷ill水流速が小さく、てのため冷
)11能が低いf)s 3、急冷薄帯Wl’、l 3i
′8川【1−ルとしては満足できるものではなかった。 −7’J ’I”! 2図に示すようにシVフト状の目
−ル本体4と、内側に螺旋状もしくけ環状の溝5を形成
したスリーブ6どを相合1jてぞの溝5に冷F、Il水
3を流りJ:〕にした組み合せ型ロール7も知られ(い
る。この[コール7においては冷却水流通部分の断面積
が小さく、その冷却水流速を容易に人きり1.i シl
ワるどともに冷却水との接触部も大きくなるため、除用
fiuが第1図に示されるものと比較して格段に大きく
、したがって急冷薄帯製造用[1−ルに適していると思
われる。しかしながら第2図の[1−ルアは急冷薄帯の
製造に使用した場合法のような問題がある。 ゛りなわも急冷薄帯の!11造においては1rli渇の
溶融金属を直接ロール外周面へ接触させるため、ロール
の入熱が(止めて大きく、ロールが熱膨張する。 この際のロールの熱膨張率は、ロール幅方向で一定では
なく、Ll−ルの幅方向両端側(ロールエツジ側)では
外部への放熱が大きくまた溶融金属が接しないためその
熱膨張1が小さいのに対し[]−ル中央部では放熱が小
さくかつ溶融金属が直接接するため熱膨張量が大きく、
でのためL】−ル中央部分が外側l\膨出するいわゆる
ヒートクラウンが生じる。このJ:うなヒートクラウン
が生じれば、双ロール法の場合には一対のロール間のギ
ャップがロール幅方向で異なり、また単ロール法の場合
には注湯ノズルどU−ルとのギャップがロール幅方向で
異なり、いずれの場合もいわゆるロールエツジ側てのギ
ャップが開き、ぞのた°め急冷凝固された薄帯の厚みが
幅方向で不均一となるばかりでなく、幅方向両端部で完
全凝固前にブレークアラ!・が生じて未凝固溶湯が流出
し、仮幅不均−や形状不良を生じるおそれがある。この
ようなし−1〜クラウンを防止するためには、【−1−
ルに対する入熱を制御する方笛が採られているが、ロー
ル入熱の制御には限界があり、実際上有効な解決策では
なかった。したがってM2図の臼−ルを用いた場合、冷
却能は高いものの、厚さや幅が一定で形状性が良好41
曹帯を1i定して19ることが円V■とならざるをlr
7ないのが実1青であつIこ。 (’lの発明IL +、゛<トの事情に鑑みてt【され
たちのC1冷Ll+能が高い(イかり(なく、叩さや幅
が均一な形状性の良/17な負希薄帯を人定して〒1造
し1りる急冷薄帯Wl 積用[1−ルを1〒(Jするこ
とを目的とするものであろう 寸なわちこの発明111、急冷薄帯!1造用[]−ルが
所謂圧延用の(1−ルと異なり、大きな圧下刃を必要と
しないこと、また急冷薄帯製造用ロールが−R1には熱
伝導が良好な銅もしくは銅合金でfYられ【おり、この
場合圧延用ロールに通常使用されている詩mと比較し1
8段に軟質であることに着目し【なされたものであり、
不均一な熱量比が生じた場合にロール反力によりロール
スリーブ部分が逆方向に弾性変形、tなわも中央部が内
側へ湾曲するように構成でれば、ロール外周面のプロフ
ィルを一定に保持し1!7ると考え、この発明をなすに
至ったのである。 具体的には、この発明の急冷薄帯製造用ロールは、シト
フト状のロール本体と、内周側に11切壁によっ1区分
された冷ム(1水流通用の宿が形成されたスリーブとべ
同心状に相合せてなるロールにj3いで、前記渦を区分
し1いる仕切へ1の内周側蝿面とLl−ル本体外周面と
の間に所定間FN (1)隙間hす9()られでいるこ
とを11徴とづるものt’ct+す、このようにU−ル
木体とスリー7どの間に隙間を設りることによって、熱
膨叫時にIJ−ル反力にJ:リスリーブが内側へ弾性変
形して【」−ル外周面ブ[1)、イルが一定に保たれる
ようにしたもの−C1うる。 以下この発明の急冷薄帯暫!13々用Ll−ル(ニ一つ
いでさらに詳細に説明1−る。 第3図およびj’f!/I図(1それぞ1Lこの発明の
急冷薄帯製造用ロールの一例を示すものであり、シャフ
t−伏をなすロー、ル木体4の外周面PI 1.二け、
flもしくは銅合金等の熱伝導11の高い(′411か
らなるスリー16が■合されて、[1−ル木1本llと
スリーブ6とを同心状に相合せCなる急冷薄帯製造用相
み合せ型ロールが構成されている。前記ロール木(ト4
の一方の端部には冷却水導入口8が形成され、また他方
の端部【こ(未冷却水排出口9が形成されCいイ)ウー
ルスリーブGの内側には第3f’21に示づよう’−j
: n IT状もしくは第4図に示づような環状の満5
が形成(N11でいろ。この溝5は冷7JI水流通用の
ものCあり、スリーブ6の内側の螺旋状もしくは1羽状
の仕切壁10によって区分形成されでいる。 工してこの仕切壁10け、平常r+¥りなわち常温Cは
その内周咽部′1()Δとロー・−ル木体4の外周面4
Δどの間に所定間mの隙間11が存在するJ:うに設定
されもいる。 な;J311−ル本陣・1の一端の冷ム11水導入]二
」8とてれに近い側の済5/−の間、dj J、び【」
−ル水体4の1111喘の冷1411ホI11出目9と
それに近い側の潰5との間fZ let 、イ1tぞ1
1口示しない冷却水連絡路が形成されでいる。j/、:
溝5が螺旋1t(に形成されている10合(二1°1冷
+++Δ・がアの轄絆虐にf・“〔ってスリーブG内を
ての一端111から1(1!端四へ流れることになるが
、環状(−形成さイ1ている場合には隣り合う潜5の間
が1[切=q 10によっC分断されることになるから
、冷R1+水をスリーブ6の一端側から他端側へ円滑に
流すためには、隣り合う満5間の仕切壁10の適宜箇所
に冷却水流通用のスリットもしくは0通穴を形成してお
くことが必要である。すなわち例えば第4図および第5
図に示すように「4り合う環状の合溝5の間の各仕切壁
10に、ぞ1tぞれスリーブ6の軸線方向に沿ったスリ
ット12を形成し、かつその各スリット12の位置を、
交互に 180゜ずつずらゼておけば、6潜5の全周に
わたって均一に冷却水を循環させることができる。また
場合によっては環状の各溝5内におい−C冷却水を一方
向に旋回させるべく、各スリッ]−12をスリーブ6の
軸線方向に対し所定角度傾斜さけ、かつ隣り合う仕切壁
10におけるスリット12の位置を、そのスリット12
による冷N1水旋回方向に対し反対方向へ若干ずらせた
位置に89定しても良い。 以上のようなロール7を急冷薄帯!#造に適用した場合
、前述のように高温の溶融金属からの入熱によって幅方
向に不均一な熱膨張が生じ、そのため従来のロールでは
第6図の仮惣梓13で示すようにスリーブ6の中央部が
外側へ膨出する所謂ヒ1、 /) 72ウシが生1じz
lことがあるが、この発明の11−ルの11合(田1ス
リーブ6の仕切壁内周咽部10△と1.j−ル本f(V
外周面11△との間に隙間11が設(lら11 iいる
ため、スリーブ6が内ρtl t\撓むことが許容され
Cおり、しかもスリーブ6がffl −1” ff!1
合金等の比較的軟7°(/14Vl r fFらLL 
’Uいるから、スリ一一−16の中央部が【]−ル反力
により第5図の1反IQ梓171で承りよ)に光生りラ
ウンロし見合うだ()内側lX弾1′l:的(、叫A曲
し、ぞの結果スリーブかり“1周面が初1:11のグ■
)fルに保たれるかまたは少なくともピー1〜′、フラ
ウンlが軒とべされることになる。 プ【お上ジ・1(のように什I7]壁10の内周清面1
0Aど11−ル水体11の外冊面4Δとの間には隙間1
1hすUtら11. L イi、 l)1ら、冷ノ41
水はその隙r?3 ’l i ′iiも流1t7)こと
(二なイ) hl ’+可の1間゛11に入信の市川1
(が流1してしJ゛−)た(11合、)門5の内奥部分
、リーグ【わちスリーブ6の外内壁部6△(第3図参照
);二接4ろンイ7.+1水の)々)勺が;哩くなつI
ニリ、RHVr4したりL・(冷%、jl l’fが低
下1)でしまうから、隙間11のギャップ寸法はこの発
明の目的に1;[つてスリーブ外周面の予想される最大
ヒートクラウン特に対応覆る程度の小さい間隔とし、て
゛の隙間11を流れる冷却水量を可及的に小さくづるこ
とが望ましい。 具体的には、常温におC)る隙間11のギVツブを、例
えばスリーブ6の肉厚の1%〜376程度とづることか
望ましい。 また上述の如く隙間1゛1のギVツブが大き過ぎる場合
の冷却能の低下を防止づる1、め、例えば第7図および
第8図に示寸如く、内側に通水孔15を形成したゴム等
の弾性擾4からなるバッキング16を隙間11に介在さ
せて、隙間11における通水量を調整しでも良い。 なおスリーブ6にお1ノる溝5の形状(深さ、幅)や隙
間11のギャップGは必ずしも一定とする必要はなく、
これらを必要に応じて)1宜変化させても良い。例えば
第9図に示すようにスリーブ6の両端側の溝5Δの深さ
を中央部の満5 Bの深さJ、りも大きくづることによ
ってスリーブ6の両端側における外周壁6Aの肉厚を小
さくし、これにJ、1(スリー−−/6の中央部分が全
体的に: IQみ易くなろJ:うに(n成しくち良い。 またこの場合スリーブ6の中央部(二おける潜5Bの幅
を他の溝よりも大きくして、スリーブ中央部の冷却能を
太さくしても良い。 以下;、二この発明のEl−ルを急冷薄帯の製j聞に適
用した実験例を配り。 実バa1N 6、59/、のSiを含有する高珪素鋼薄帯を1000
klJヒー1〜リイ゛ズの出蛸容nで双ロール法により
製造する(・二あたり、第3図に示すような溝付相合せ
スリーブをhするロールを用いた。但しスリーブ肉厚は
40mm、[1−ル木体外114;J: 600目m、
常)菖における隙間のギャップは11IlInでおった
。この実翳にJ7いては、一定の幅、一定の厚さを有す
る形状11の良07な高珪素1急冷傳帯を17ることが
できた。口”た製造中のヒートクラウンの発生府は、従
4′、の第2図に示すj、うなU−ルを用いた場合と比
較しく約1 、’ 2 ICτft減された。このこと
はこの発明の特11′Iであるスリーブとロール本体ど
の間の隙間の存在によりスリーブが弾11弯形づるため
であると考えられる。 なお、高珪素鋼薄帯の製造の11合のみならず、アモル
ファス合金の製造の場合にも同様な結果が19られるこ
とが確認された。 以上の説明で明らかなよう1ごこの発明の@冷a帯製造
用ロールはスリーブと1」−ル本体どの間の隙間の存在
によりスリーブが内側へ弾性変形することが許容されて
いるから、操業時にJ3いて幅方向に不均一な熱膨張が
生じた場合でもU−ル反力により内側へ撓むことにより
ヒートクラウンを防止または軽減でき、したがっCヒー
トクラウンにより製品薄帯に厚さ−ウ幅が不均一な形状
不良を生じることなく、安定して形状性の良好な急冷薄
帯を製造することができる。また前記隙間のギャップ寸
法は最大ヒートクラウン舟に対応する1法以下の小さい
ものであれば良いから、ぞの目間を流れる冷却水間を少
なくして大部分の冷却水が溝内を円滑に循環するように
なすことができ、したがってこの発明のロールは従来の
第2図に示される弓イ・1スリーf有用いたr−1−ル
ど同様に、冷N1水流通所而111を小さクシ・(冷却
水の流速を人きくしが−)冷ill 7J(どスリ〜、
)内面どの接触部(へを大きくし、どこ1目により冷7
116粍を著しく高めることができる。 4、r71而の間中77 M明 第1図11径」4の内部冷却ロールの一例を示1所面図
、第2図(1,従来の内部冷却【−1−ルの他の例を示
!1l17irrriIVI、第3図はこの発明の急冷
薄帯製造用ロールの第1の例を示す断面図、F44図は
この発明の急冷薄帯W’l造用日用ロール2の例を示す
断面図、笥5図は第11図00−ルのv−v線における
断面図、第6図11第3図に示されるロールの使用時の
状況を示rJ門面図、第7図はこの発明の急冷博帯シ1
造用【−1−ルの第3の例を示す断面図、第8put第
7図の■−■梓にJ3ける断面図、第9図はこの弁明の
急冷薄帯FJ造用ロールの第4の例を示1jI!?i面
図である。 4・・・【−1−ル本体、 5・・・溝、 6・・・ス
リーブ、10・・・イ1切壁、 11・・・隙間。 第1図 第2図 ア 第3図 第6図 L■
[-1- A method is adopted in which cooling water is circulated inside the roll and heat is applied from inside the roll. As an example of such an internal cooling ring 110, a hollow sleeve 11-hole is known, as shown in FIG. d3 to this roll 1' 1.1. Although there is an advantage that IJ is easy to construct and relatively inexpensive, the cold water flow rate is low because the cold river water 3 flows through the hollow part 2 with a large cross section fl'l, and the cooling capacity is low due to the ) s 3, quenched ribbon Wl', l 3i
'8 River [1-It was not satisfactory as a rule. -7'J 'I''! As shown in Figure 2, the V-shaped eyelet main body 4 and the sleeve 6, which has a spiral or interlocking annular groove 5 formed inside, are mated together. A combination type roll 7 is also known in which cold F, Il water 3 flows through J:].In this [coal 7], the cross-sectional area of the cooling water circulation part is small, and the cooling water flow rate can be easily controlled. 1.i sill
Since the contact area with the cooling water becomes larger as well as the warp, the removed fiu is much larger than that shown in Figure 1, and therefore it is thought to be suitable for the [1-ru] for manufacturing quenched ribbon. It will be done. However, the [1-Lua shown in FIG. 2] has problems when used in the production of quenched ribbons. The line is also made of quenched ribbon! In No. 11 construction, the molten metal at 1rli is brought into direct contact with the outer peripheral surface of the roll, so the heat input to the roll is large and the roll thermally expands. At this time, the coefficient of thermal expansion of the roll is constant in the width direction of the roll. Rather, heat radiation to the outside is large at both ends in the width direction (roll edge side) of the Ll-ru, and the thermal expansion 1 is small because the molten metal does not come into contact with it. Since the metals are in direct contact, the amount of thermal expansion is large.
Therefore, a so-called heat crown occurs in which the central portion of the center bulges outward. If this heat crown occurs, the gap between the pair of rolls will be different in the roll width direction in the case of the twin roll method, and the gap between the pouring nozzle and U-ru will be different in the case of the single roll method. The difference is in the width direction of the roll, and in both cases, a gap opens on the roll edge side, and as a result, the thickness of the rapidly solidified ribbon not only becomes uneven in the width direction, but also completely at both ends in the width direction. Break ala before solidification!・This may cause unsolidified molten metal to flow out, resulting in uneven temporary width and poor shape. In order to prevent such a no-1 ~ crown, [-1-
A method has been adopted to control the heat input to the rolls, but there are limits to controlling the heat input to the rolls, and this has not been an effective solution in practice. Therefore, when using the M2-diagram mortar, although the cooling capacity is high, the thickness and width are constant and the shape is good41.
Determining 1i of Sobi and 19 is not equal to yen V ■ lr
The one without 7 is actually 1 blue. ('l's invention IL +, ゛< In view of the above circumstances, our C1 cold Ll + ability is high. It is assumed that the purpose is to make one quenched ribbon Wl for one production [1-ru to 1(J), that is, this invention 111, 1 production of quenched ribbon! []-R1 is for so-called rolling (unlike the 1-Rule, it does not require a large rolling blade, and the roll for producing quenched ribbon is made of copper or copper alloy with good thermal conductivity. In this case, 1
[It was made by paying attention to the softness of the 8th stage,
If an uneven heat ratio occurs, the roll sleeve part is elastically deformed in the opposite direction due to the roll reaction force, and if the rope is configured so that the center part curves inward, the profile of the roll outer circumferential surface can be maintained constant. It was with this in mind that we came up with this invention. Specifically, the roll for producing a quenched ribbon of the present invention comprises a shaft-like roll body, a cold comb (1) divided into 1 by 11 cut walls on the inner circumferential side (1) a sleeve and a plate in which accommodations for water flow are formed. The vortex is divided into two partitions using rolls arranged concentrically with each other, and a predetermined gap FN is created between the inner circumferential fly surface of 1 and the outer circumferential surface of the main body of Ll. ) By creating a gap between the U-ru wooden body and the three 7, it is possible to reduce the IJ-ru reaction force at the time of thermal expansion. The re-sleeve is elastically deformed inward so that the outer peripheral surface of the re-sleeve [1] is kept constant. Below is the quenched thin strip fabric of this invention! Figure 3 and Figure 3 and Figure J'f!/I (1L each) show an example of the roll for manufacturing the quenched ribbon of the present invention. , Shaft T - Outer circumferential surface PI of the lower and lower wooden body 4 1. 2 digits,
Three pieces 16 made of fl or copper alloy with high thermal conductivity 11 ('411) are put together to form a quenched ribbon production phase C, in which one piece of wood and the sleeve 6 are concentrically brought together. A mating type roll is constructed.
A cooling water inlet 8 is formed at one end of the wool sleeve G, and a cooling water inlet 8 is formed at the other end (where an uncooled water outlet 9 is formed). Let's go'-j
: n IT shape or ring shape as shown in Figure 4
(N11) This groove 5 is for cold 7JI water circulation, and is divided by a spiral or wing-shaped partition wall 10 inside the sleeve 6. , the normal r+¥, that is, the normal temperature C is the inner circumferential throat '1()Δ and the outer circumferential surface 4 of the roll wood body 4.
A gap 11 of a predetermined distance m exists between Δ. Na; J311-Le Honjin・1 end of cold water 11 water introduction] Between 2'8 and 5/- on the side near the tere, dj J, bi['
- Between the cold 1411 of the 1111 breath of the water body 4, I11, and the nearest 5, fZ let, I1t 1
Only one cooling water communication path has been formed. j/, :
Groove 5 is formed in a spiral 1t (10 degrees (21°1 cold + + + Δ) is connected to the bond of A). However, if there is an annular (-formation) 1, the adjacent tubes 5 will be separated by 1 [cut = q 10], so the cold R1 In order to flow smoothly from one side to the other end, it is necessary to form slits or zero through holes for cooling water circulation at appropriate locations in the adjacent partition walls 10. Figure and 5th
As shown in the figure, slits 12 are formed along the axial direction of the sleeve 6 in each partition wall 10 between the four annular matching grooves 5, and the position of each slit 12 is
If they are alternately shifted by 180 degrees, the cooling water can be circulated uniformly over the entire circumference of the six submersibles. In some cases, each slit 12 may be inclined at a predetermined angle with respect to the axial direction of the sleeve 6, and the slit 12 in the adjacent partition wall 10 may be made to rotate the cooling water in one direction in each annular groove 5. the position of the slit 12
89 may be set at a position slightly shifted in the opposite direction to the direction of rotation of the cold N1 water. Quench the roll 7 as described above! When applied to a # structure, heat input from high-temperature molten metal causes non-uniform thermal expansion in the width direction as described above, so in the conventional roll, the sleeve 6 The central part of the cow bulges outward.
However, the 11th case of the 11th rule of this invention (field 1, the inner periphery of the partition wall 10Δ of the sleeve 6, and the 1.jth point f (V
Since a gap 11 is provided between the outer circumferential surface 11Δ and the sleeve 6 is allowed to bend inward, the sleeve 6 is allowed to bend inwardly.
Relatively soft 7° (/14Vl r fF et LL
'U is there, so the central part of pickpocket 11-16 is exposed to the 1 anti-IQ Azusa 171 in Figure 5 due to the []-le reaction force. The target (screaming) turned A, and as a result of the sleeve, the first circumference was 1:11.
) The flounces will be kept flat or at least the flounces will be eavesed. Inner circumference surface 1 of wall 10
There is a gap 1 between the outer surface 4Δ of the water body 11 and the outer surface 4Δ of the water body 11.
1h Ut et al. 11. L ii, l) 1 et al., cold 41
Is the water that gap? 3 'l i 'ii mo style 1t7) Koto (two ai) hl ' + possible 1 interval ゛11 Ichikawa 1
(11 points,) The inner back part of the gate 5, the outer and inner wall part 6△ of the sleeve 6 (see Fig. 3); +1 water)
The gap size of the gap 11 is 1 for the purpose of this invention because the RHVr4 or L・(cooling %, jl l'f decreases by 1). It is desirable to make the interval small enough to cover the gap 11, and to reduce the amount of cooling water flowing through the gap 11 as much as possible. Specifically, it is desirable that the diameter of the gap 11 at room temperature is, for example, about 1% to 376% of the wall thickness of the sleeve 6. In addition, as mentioned above, in order to prevent a decrease in cooling performance when the gap 1'1 is too large, water passage holes 15 are formed inside, for example, as shown in Figs. 7 and 8. A backing 16 made of an elastic layer 4 made of rubber or the like may be interposed in the gap 11 to adjust the amount of water passing through the gap 11. Note that the shape (depth, width) of the groove 5 in the sleeve 6 and the gap G of the gap 11 do not necessarily need to be constant;
These may be changed as necessary). For example, as shown in FIG. 9, the thickness of the outer circumferential wall 6A at both ends of the sleeve 6 can be increased by increasing the depth of the groove 5Δ on both ends of the sleeve 6 to a depth J greater than the depth J of the central portion. Make it smaller, and add J, 1 (3--/6's center part as a whole: IQ becomes easier to see J: sea urchin (n). The cooling capacity of the central part of the sleeve may be increased by making the width larger than that of the other grooves. Below, two experimental examples in which the El-rule of this invention was applied to the production of quenched ribbon are distributed. 1000 Si-containing high-silicon steel ribbons with a real bar a1N 6,59/.
Manufactured by the twin roll method with a roll size of 1 to 2. (For 2, a roll with a grooved mating sleeve as shown in Fig. 3 was used. However, the sleeve wall thickness was 40 mm. , [1-le outside the tree body 114; J: 600 stitches m,
(Constant) The gaps in the irises were filled with 11IlIn. In this actual image, 17 high-silicon 1 quenching zones with a shape of 11 having a constant width and a constant thickness could be obtained. The amount of heat crown generated during manufacturing was reduced by approximately 1,'2 ICτft compared to the case of using the U-rule shown in Figure 2 of Subsection 4'. This is thought to be due to the existence of a gap between the sleeve and the roll body, which is characteristic 11'I of the invention, which causes the sleeve to have an 11-curved shape. It was confirmed that similar results were obtained in the case of manufacturing alloys.19 As is clear from the above explanation, the cold A-band manufacturing roll of this invention has a gap between the sleeve and the main body of the roll. The sleeve is allowed to elastically deform inward due to the presence of the sleeve, so even if non-uniform thermal expansion occurs in the width direction during operation, the heat crown can be prevented by bending inward due to the U-ru reaction force. Therefore, it is possible to stably produce a quenched ribbon with good shape without causing shape defects such as non-uniform thickness and width in the product ribbon due to C heat crown. In addition, the gap size of the above-mentioned gap can be as small as 1 method or less corresponding to the maximum heat crown vessel, so the gap between the cooling water flowing between the grooves can be reduced to allow most of the cooling water to flow smoothly within the groove. Therefore, the roll of the present invention is similar to the conventional bow roll shown in FIG.・(I want to change the flow rate of the cooling water.) Cold ill 7J.
) Which contact part on the inner surface (to) should be enlarged, and the first part should be cooled by 7.
116 mm can be significantly increased. 4. During the r71 period 77 M light Fig. 1 shows an example of an internal cooling roll with diameter 4. Figure 3 is a sectional view showing the first example of the roll for producing quenched ribbon of the present invention, and Fig. F44 is a sectional view showing an example of the daily use roll 2 for producing quenched ribbon W'l of the invention. Figure 5 is a cross-sectional view taken along line v-v of Figure 11-00, Figure 6 is a front view of the roll shown in Figure 3, and Figure 7 is a front view of the roll shown in Figure 3. Quenched Hakushi 1
A cross-sectional view showing the third example of the roll for manufacturing [-1-], a cross-sectional view at ■-■ Azusa J3 in Fig. 7, and Fig. 9 shows the fourth example of the roll for forming the quenched ribbon FJ of this explanation. Show an example of 1jI! ? It is an i-side view. 4...[-1-Role main body, 5...Groove, 6...Sleeve, 10...I1 cut wall, 11...Gap. Figure 1 Figure 2 A Figure 3 Figure 6 L■

Claims (1)

【特許請求の範囲】 シセフト状の[]−ル本体と、内周側に仕切壁によつ′
C8分さ1した冷川水流通用の溝が形成されたスリー1
とを同心状に相合わせてなるρ冷旧11造用の11−ル
に、13いて、 前記溝を区5)()Cいる仕切壁の内周側端面と[1−
ル本体外周面どの間に、所定間隔の隙間が設けられてい
ることを特1ガどする急冷薄帯製造用ロール。
[Claims] A shaft-shaped []-ru body and a partition wall on the inner circumferential side.
Three 1 with grooves for cold river water distribution cut into C8 parts
In the 11-rule for the cold old 11 building, which is made by concentrically matching the 11-
A roll for producing a quenched ribbon, characterized in that gaps are provided at predetermined intervals between the outer peripheral surfaces of the main body.
JP17717882A 1982-10-08 1982-10-08 Roll for production of quickly cooled light-gage strip Pending JPS5966954A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17717882A JPS5966954A (en) 1982-10-08 1982-10-08 Roll for production of quickly cooled light-gage strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17717882A JPS5966954A (en) 1982-10-08 1982-10-08 Roll for production of quickly cooled light-gage strip

Publications (1)

Publication Number Publication Date
JPS5966954A true JPS5966954A (en) 1984-04-16

Family

ID=16026540

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17717882A Pending JPS5966954A (en) 1982-10-08 1982-10-08 Roll for production of quickly cooled light-gage strip

Country Status (1)

Country Link
JP (1) JPS5966954A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4993478A (en) * 1990-03-16 1991-02-19 Battelle Development Corporation Uniformly-cooled casting wheel
BE1004774A3 (en) * 1990-08-24 1993-01-26 Mannesmann Ag Internal cooling roll for continuous casting plant.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4993478A (en) * 1990-03-16 1991-02-19 Battelle Development Corporation Uniformly-cooled casting wheel
BE1004774A3 (en) * 1990-08-24 1993-01-26 Mannesmann Ag Internal cooling roll for continuous casting plant.

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