JPH0515402Y2 - - Google Patents
Info
- Publication number
- JPH0515402Y2 JPH0515402Y2 JP1987098832U JP9883287U JPH0515402Y2 JP H0515402 Y2 JPH0515402 Y2 JP H0515402Y2 JP 1987098832 U JP1987098832 U JP 1987098832U JP 9883287 U JP9883287 U JP 9883287U JP H0515402 Y2 JPH0515402 Y2 JP H0515402Y2
- Authority
- JP
- Japan
- Prior art keywords
- weir
- roll
- molten steel
- weir body
- divided
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 238000003825 pressing Methods 0.000 claims description 13
- 238000009749 continuous casting Methods 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 description 4
- 230000002706 hydrostatic effect Effects 0.000 description 4
- 239000011819 refractory material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- -1 i.e. Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案はツインロール型連続鋳造装置における
溶鋼堰に関する。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a molten steel weir in a twin-roll continuous casting device.
従来の技術
従来、第６図に示すように、一対のロール２
１，２１を使用して、鋳片を引抜いて薄板を連続
鋳造するものがある。この場合、ロール２１，２
１間に溶鋼を溜める溶鋼溜めを設ける必要があ
り、このため、従来、両ロール２１，２１間の前
後端面に堰板２２，２２が接触して配置されてい
る。ところで、鋳造中においては、ロール表面に
生成するシエルに厚みむらが生じ、このためロー
ルが第７図のように水平面内で傾き、ロール２１
と堰板２２との間の隙間に溶鋼が入り、ロール２
１がスムーズに回転しなくなる。したがつて、ロ
ールおよび堰体に傷が付いたり、また鋳片の品質
に悪影響を及ぼしていた。Conventional technology Conventionally, as shown in FIG. 6, a pair of rolls 2
1 and 21 are used to draw slabs and continuously cast thin plates. In this case, rolls 21, 2
It is necessary to provide a molten steel reservoir for storing molten steel between the rolls 1 and 1, and for this reason, conventionally, weir plates 22, 22 are disposed in contact with the front and rear end surfaces between the rolls 21, 21. By the way, during casting, the thickness of the shell generated on the roll surface is uneven, which causes the roll to tilt in the horizontal plane as shown in FIG.
Molten steel enters the gap between the roll 2 and the weir plate 22, and the roll 2
1 no longer rotates smoothly. Therefore, the rolls and weir bodies were damaged, and the quality of the slab was adversely affected.
このような欠点を解消するものとして、既に特
開昭60−261643号公報に開示されたものがある。
このものは、第８図に示すように、堰体２３をロ
ール２４，２４間中央で２つに分割するととも
に、これら各分割堰体２３ａをそれぞればねによ
りロール端面に押付け、ロールの傾きに応じて分
割堰体２３ａを追従させ、隙間が生じないように
していた。 There is a method that has already been disclosed in Japanese Unexamined Patent Publication No. 60-261643 as a solution to these drawbacks.
As shown in FIG. 8, the weir body 23 is divided into two parts at the center between the rolls 24, 24, and each of these divided weir bodies 23a is pressed against the roll end face by a spring, depending on the inclination of the rolls. The divided weir bodies 23a were made to follow each other to prevent gaps from forming.
考案が解決しようとする問題点
上記従来の構成によると、各分割堰体は上下方
向で一体であるため、すなわち下部はロールに摺
接し、上部は溶鋼に接しているため、上部に作用
する溶鋼による静水圧や、その壁面に生成するシ
エルによつて下部のロール端面への押付け力が不
十分になる場合があつた。また、このように分割
堰体が上下方向で一体であるため、下部のロール
との接触面の機械加工に合せて耐火物で構成され
た分割堰体の内面全体を機械仕上げしなければな
らず、また下部のロールとの接触面の摩耗により
全体の寿命が定まり、非常に不経済であつた。Problems to be Solved by the Invention According to the above-mentioned conventional configuration, each divided weir body is integral in the vertical direction, that is, the lower part is in sliding contact with the roll and the upper part is in contact with the molten steel, so the molten steel acting on the upper part is In some cases, the pressing force against the lower end of the roll was insufficient due to the hydrostatic pressure caused by the roll and the shell generated on the wall surface. In addition, since the divided weir body is vertically integrated, the entire inner surface of the divided weir body made of refractory must be machined to match the machining of the contact surface with the lower roll. Moreover, the entire life span was determined by the wear of the contact surface with the lower roll, making it very uneconomical.
そこで、本考案は上記問題点を解消し得るツイ
ンロール型連続鋳造装置における溶鋼堰を提供す
ることを目的とする。 Therefore, an object of the present invention is to provide a molten steel weir for a twin-roll continuous casting apparatus that can solve the above-mentioned problems.
問題点を解決するための手段
上記問題点を解決するため、本考案のツインロ
ール型連続鋳造装置における溶鋼堰は、互いに平
行に設けられた一対のロールの両端面に配置され
る溶鋼堰を、ロール間中央で左右に２分割すると
ともに、これら各分割堰のロールとの接触部をロ
ール表面に沿つて分割して下部堰体となし、この
下部堰体を、その上方に位置する上部堰体側およ
びロール端面側に押圧する押圧手段を設けたもの
である。Means for Solving the Problems In order to solve the above problems, the molten steel weir in the twin roll continuous casting apparatus of the present invention has a molten steel weir disposed on both end faces of a pair of rolls provided parallel to each other. It is divided into two left and right parts at the center between the rolls, and the contact part of each of these divided weirs with the rolls is divided along the roll surface to form a lower weir body, and this lower weir body is separated from the upper weir body side located above it. and a pressing means for pressing the end face of the roll.
作 用
上記構成においては、ロール端面に接触する下
部堰体を分割するとともにこの下部堰体をロール
端面側および上部堰体側に押圧する押圧手段を設
けたので、溶鋼の静水圧を考慮する必要がないた
め、常に適正な押圧力でもつて下部堰体をロール
端面に押付けることができる。Effect In the above configuration, the lower weir body that contacts the roll end face is divided and a pressing means is provided to press this lower weir body toward the roll end face side and the upper weir body side, so it is necessary to consider the hydrostatic pressure of the molten steel. Therefore, the lower weir body can always be pressed against the roll end face with an appropriate pressing force.
実施例
以下、本考案の一実施例を第１図〜第５図に基
づき説明する。Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.
１は互いに平行に配置された鋳片引抜き用の一
対のロールで、これら両ロール１，１の前後端面
には、両ロール１，１と協働して溶鋼溜めを形成
する溶鋼堰２が配置されている。上記各溶鋼堰２
はロール１，１間中央で２分割にされ、また各分
割堰３Ａ，３Ｂは大きく分けてロール１外周近傍
の端面に接触するとともにロール外周面に沿う円
弧状の下部堰体（以下、摺動リングという）４
と、この摺動リング４の上方に配置されるととも
に溶鋼を保持する上部堰体５とから構成されてい
る。さらに、上記上部堰体５は、摺動リング４に
沿う円弧状のリング受け部６と、堰本体７とから
構成されている。上記上部堰体５すなわち堰本体
７およびリング受け部６はロール１の前後端面に
対応する位置に配置された支持体８にボルト９に
より固定支持され、また摺動リング４は上記支持
体８に引きボルト１０を介して支持されるととも
に押圧手段１１を介して堰本体７およびリング受
け部６側に押圧されている。なお、堰本体７とリ
ング受け部６との間には目地詰めにてシールが施
され、また摺動リング４のロール側内面は機械加
工されているが、堰本体７およびリング受け部６
のロール側内面は機械加工されていない。上記押
圧手段１１は、摺動リング４の外側面および下面
に対応する位置で支持体８に取付けられた押しボ
ルト１２と、これら各押しボルト１２の先端に外
嵌された筒状体１３と、この筒状体１３のフラン
ジ部１３ａと摺動リング４との間に介装された皿
ばね１４とから構成されている。１５は座金であ
る。上記堰本体７リング受け部６および摺動リン
グ４は耐火物で構成されている。特に、リング受
け部６は、摺動リング４の移動（わずかであるが
左右に動く）による摩耗、溶鋼による侵食等に対
処するために特殊な耐火物（例えば窒化珪素系の
耐火物すなわちセラミツクスなど）が使用されて
いる。なお、セラミツクスを使用する場合、セラ
ミツクスが高価であるため、第３図に示すよう
に、セラミツクス６ａを鋼製の基板６ｂに貼付け
たものが使用される。勿論、上記堰本体７および
リング受け部６は再使用ができるようにされてい
る。また、摺動リング４の外周面はロール表面よ
り少し突出するように配置されており、シエルの
側端部すなわち短辺シエルの生成を容易にしてい
る。さらに、上記摺動リング４内には、冷却水通
路１６が形成されて冷却できるようにしている。
これは短辺シエルの凝固を促進させることおよび
摺動リング４の熱変形による隙間が生じないよう
にするためである。なお、摺動リング４は、それ
ぞれの押圧方向に0.1〜２mm程度移動できるよう
に支持されている。すなわち、摺動リング４の押
圧状態では、第５図に示すように、引きボルト１
０に少しがたａが生じるようにされている。 Reference numeral 1 denotes a pair of rolls for drawing slabs that are arranged parallel to each other, and a molten steel weir 2 that cooperates with both rolls 1 and 1 to form a molten steel reservoir is arranged on the front and rear end surfaces of both rolls 1 and 1. has been done. Each of the above molten steel weirs 2
is divided into two at the center between the rolls 1, 1, and each divided weir 3A, 3B is roughly divided into an arc-shaped lower weir (hereinafter referred to as a sliding (called a ring)4
and an upper weir body 5 which is disposed above the sliding ring 4 and holds molten steel. Further, the upper weir body 5 is composed of an arc-shaped ring receiving portion 6 along the sliding ring 4 and a weir body 7. The upper weir body 5, that is, the weir body 7 and the ring receiving portion 6, are fixedly supported by bolts 9 to a support body 8 disposed at positions corresponding to the front and rear end surfaces of the roll 1, and the sliding ring 4 is fixed to the support body 8. It is supported via a tension bolt 10 and is pressed against the weir body 7 and ring receiving portion 6 via a pressing means 11. Note that a seal is provided between the weir body 7 and the ring receiving part 6 by filling the joint, and the inner surface of the sliding ring 4 on the roll side is machined.
The inner surface of the roll side is not machined. The pressing means 11 includes push bolts 12 attached to the support body 8 at positions corresponding to the outer and lower surfaces of the sliding ring 4, and a cylindrical body 13 fitted onto the tip of each of these push bolts 12. It is composed of a disc spring 14 interposed between the flange portion 13a of the cylindrical body 13 and the sliding ring 4. 15 is a washer. The ring receiving portion 6 of the weir body 7 and the sliding ring 4 are made of refractory material. In particular, the ring receiving part 6 is made of a special refractory material (for example, silicon nitride refractory material, i.e., ceramics, etc.) in order to cope with wear caused by the movement of the sliding ring 4 (slight left and right movement), erosion by molten steel, etc. ) is used. Note that when ceramics are used, since ceramics are expensive, ceramics 6a are bonded to a steel substrate 6b as shown in FIG. 3. Of course, the weir body 7 and ring receiving portion 6 are designed to be reusable. Further, the outer circumferential surface of the sliding ring 4 is arranged so as to protrude slightly from the roll surface, thereby facilitating the generation of side ends of the shell, that is, short side shells. Furthermore, a cooling water passage 16 is formed in the sliding ring 4 to enable cooling.
This is to promote solidification of the short side shell and to prevent gaps from forming due to thermal deformation of the sliding ring 4. Note that the sliding ring 4 is supported so as to be able to move approximately 0.1 to 2 mm in each pressing direction. That is, when the sliding ring 4 is pressed, the tension bolt 1 is pressed as shown in FIG.
0 is made to have a slight backlash a.
上記構成において、連続鋳造時には、摺動リン
グ４は、それぞれ皿ばね１４によりロール１端面
およびリング受け部６に押圧された状態で、鋳片
が両ロールによつて引抜かれて薄板が形成され
る。 In the above configuration, during continuous casting, the sliding ring 4 is pressed against the end face of the roll 1 and the ring receiving portion 6 by the disk spring 14, and the slab is pulled out by both rolls to form a thin plate. .
このように、摺動リング４を上部堰体５とは別
個に設けるとともにこの摺動リング４だけを皿ば
ね１４によりロール１端面側および上部堰体５側
に押圧するため、溶鋼の静水圧を考慮する必要が
なく、また摺動リング４だけを機械加工するだけ
でよいとともに摩耗による交換も摺動リング４だ
けでよいため、非常に経済的である。さらに、リ
ング受け部６を堰本体７とは別体に構成している
ため、摺動リング４との摺動部に必要な諸条件
（耐摩耗性、耐熱衝撃性、溶鋼に対する耐侵食性、
溶鋼成分との非親和性）を満足する特殊耐火物の
使用量が少なくて済む。 In this way, since the sliding ring 4 is provided separately from the upper weir body 5 and only this sliding ring 4 is pressed against the roll 1 end face side and the upper weir body 5 side by the disc spring 14, the hydrostatic pressure of the molten steel is reduced. There is no need to consider this, and only the sliding ring 4 needs to be machined, and only the sliding ring 4 needs to be replaced due to wear, so it is very economical. Furthermore, since the ring receiving part 6 is configured separately from the weir body 7, various conditions necessary for the sliding part with the sliding ring 4 (wear resistance, thermal shock resistance, corrosion resistance against molten steel,
The amount of special refractory that satisfies the requirements (incompatibility with molten steel components) can be reduced.
ところで、上記実施例における摺動リングに薄
膜のセラミツクコーテイングを施し、溶鋼の高温
に耐えるようにしてもよい。また、リング受け部
を堰本体に埋込んで固定するようにしてもよく、
リング受け部と堰本体とを一体化したものでもよ
い。さらに、リング受け部を皿ばねで押圧するよ
うにしたが、弾性体やシリンダー装置を使用して
もよい。 Incidentally, the sliding ring in the above embodiment may be coated with a thin ceramic coating to withstand the high temperature of molten steel. Alternatively, the ring receiving part may be embedded and fixed in the weir body,
The ring receiving portion and the weir body may be integrated. Further, although the ring receiving portion is pressed by a disc spring, an elastic body or a cylinder device may also be used.
考案の効果
上記本考案の構成によると、ロール端面に接触
する分割堰の下部を分割するとともにこの分割さ
れた下部堰体をロール端面側および上部堰体側に
押圧する押圧手段を設けたので、溶鋼の静水圧を
考慮する必要がないため、常に適正な押圧力でも
つて下部堰体をロール端面に押付けることがで
き、また下部堰体だけを機械加工すればよいとと
もに摩耗による交換も下部堰体だけでよいため、
非常に経済的である。Effects of the invention According to the above-mentioned structure of the invention, since the lower part of the divided weir that contacts the roll end face is divided and the pressing means for pressing the divided lower weir body towards the roll end face side and the upper weir body side is provided, the molten steel is Since there is no need to consider the hydrostatic pressure of the lower weir, the lower weir can always be pressed against the roll end face with an appropriate pressing force, and only the lower weir needs to be machined, and replacement due to wear is not required. Since it is only necessary to
Very economical.
第１図〜第５図は本考案の一実施例を示すもの
で、第１図はロール一端側の溶鋼堰を省略した一
部切欠全体側面図、第２図は第１図の−矢視
図、第３図は第２図の−矢視図、第４図およ
び第５図は要部断面図、第６図〜第８図は従来例
を示すもので、第６図は全体斜視図、第７図およ
び第８図は要部平面図である。
１……ロール、２……溶鋼堰、３Ａ，３Ｂ……
分割堰、４……摺動リング（下部堰体）、５……
上部堰体、６……リング受け部、７……堰本体、
１１……押圧手段、１２……押しボルト、１４…
…皿ばね。
Figures 1 to 5 show an embodiment of the present invention. Figure 1 is a partially cutaway overall side view with the molten steel weir on one end of the roll omitted, and Figure 2 is viewed from the - arrow in Figure 1. Figures 3 and 3 are views taken in the direction of the - arrow in Figure 2, Figures 4 and 5 are sectional views of main parts, Figures 6 to 8 show conventional examples, and Figure 6 is a perspective view of the whole. , FIG. 7, and FIG. 8 are plan views of main parts. 1... Roll, 2... Molten steel weir, 3A, 3B...
Divided weir, 4...Sliding ring (lower weir body), 5...
Upper weir body, 6... ring receiving part, 7... weir body,
11... Pressing means, 12... Push bolt, 14...
…Disc spring.
Claims (1)
に配置される溶鋼堰を、ロール間中央で左右に２
分割するとともに、これら各分割堰のロールとの
接触部をロール表面に沿つて分割して下部堰体と
なし、この下部堰体を、その上方に位置する上部
堰体側およびロール端面側に押圧する押圧手段を
設けたことを特徴とするツインロール型連続鋳造
装置における溶鋼堰。 A molten steel weir placed on both end faces of a pair of rolls installed parallel to each other is placed on the left and right in the center between the rolls.
At the same time, the contact portion of each divided weir with the roll is divided along the roll surface to form a lower weir body, and this lower weir body is pressed against the upper weir body located above it and the roll end face side. A molten steel weir in a twin-roll continuous casting device characterized by being provided with a pressing means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987098832U JPH0515402Y2 (en) | 1987-06-26 | 1987-06-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987098832U JPH0515402Y2 (en) | 1987-06-26 | 1987-06-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS645743U JPS645743U (en) | 1989-01-13 |
| JPH0515402Y2 true JPH0515402Y2 (en) | 1993-04-22 |
Family
ID=31325444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987098832U Expired - Lifetime JPH0515402Y2 (en) | 1987-06-26 | 1987-06-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0515402Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60261643A (en) * | 1984-06-08 | 1985-12-24 | Hitachi Ltd | Twin roll type continuous casting machine |
-
1987
- 1987-06-26 JP JP1987098832U patent/JPH0515402Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60261643A (en) * | 1984-06-08 | 1985-12-24 | Hitachi Ltd | Twin roll type continuous casting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS645743U (en) | 1989-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0712526B2 (en) | Thin plate continuous casting machine | |
| US5628359A (en) | Device for supporting a sidewall of a plant for the continuous twin-roll casting of metal strip | |
| US5058658A (en) | Installation for the continuous casting of thin metal products between two rolls | |
| JPS6233047A (en) | Twin drum type continuous casting machine | |
| GB1352639A (en) | Expansion gap compensating system for a die | |
| JPH0515402Y2 (en) | ||
| US4000553A (en) | Roller or roll assembly | |
| JP2992055B2 (en) | Liquid metal continuous casting machine between two rolls | |
| JP4227247B2 (en) | Twin strip casting machine for metal strip casting | |
| JPH06102253B2 (en) | Side weir of thin sheet continuous casting equipment | |
| JP3043927B2 (en) | Nozzle for continuous casting of wide thin slab | |
| JP2968114B2 (en) | Twin roll continuous casting machine | |
| US6488075B1 (en) | Side wall for installation for continuous casting of metal strips | |
| JP3043928B2 (en) | Side dam and stiffener mounting method for twin drum continuous casting | |
| KR100312125B1 (en) | Device for exchanging edge dam during casting in twin roll type strip caster | |
| JP2788208B2 (en) | Twin-drum continuous casting machine | |
| JPH04157047A (en) | Side weir for continuous caster for metal strip | |
| JPH0214850Y2 (en) | ||
| JPS6268661A (en) | Continuous casting machine for thin ingot | |
| JPH05269551A (en) | Strip continuous caster | |
| JPH0318038Y2 (en) | ||
| JPH0442040Y2 (en) | ||
| JPH0263649A (en) | Strip continuous casting machine | |
| JPH082482B2 (en) | Thin plate continuous casting machine | |
| JP2000237846A (en) | Side weir for twin roll type continuous casting |