JP2002035897A - Cooling drum for continuous casting - Google Patents
Cooling drum for continuous castingInfo
- Publication number
- JP2002035897A JP2002035897A JP2000218659A JP2000218659A JP2002035897A JP 2002035897 A JP2002035897 A JP 2002035897A JP 2000218659 A JP2000218659 A JP 2000218659A JP 2000218659 A JP2000218659 A JP 2000218659A JP 2002035897 A JP2002035897 A JP 2002035897A
- Authority
- JP
- Japan
- Prior art keywords
- drum
- cooling
- sleeve
- continuous casting
- shaft
- 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.)
- Granted
Links
Landscapes
- Continuous Casting (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、金属薄板を連続的
に鋳造するドラム式連続鋳造機の冷却ドラムに関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling drum of a drum type continuous casting machine for continuously casting a thin metal plate.
【0002】[0002]
【従来の技術】図7は、一般的なドラム式連続鋳造機の
斜視図である。これによれば、互いに反対方向(図の矢
印方向)に回転する一対の冷却ドラム1,1とサイド堰
2,2とによって形成された湯溜りに、溶融金属(溶
湯)3を供給し、冷却ドラム1,1の表面に接触させて
冷却することにより、凝固シェルを形成させて薄帯鋳片
(金属薄板)4が鋳造される。2. Description of the Related Art FIG. 7 is a perspective view of a general drum type continuous casting machine. According to this, molten metal (molten metal) 3 is supplied to a pool formed by a pair of cooling drums 1 and 1 and side weirs 2 and 2 rotating in opposite directions (directions of arrows in the drawing), and cooled. By contacting and cooling the surfaces of the drums 1, 1, a solidified shell is formed, and a thin strip (metal sheet) 4 is cast.
【0003】図8は、一対の冷却ドラムの表面が最も接
近するキッシングポイントでの冷却ドラムの端部とサイ
ド堰の摺動部を示す、図7のVIII−VIII矢視拡大断面図
である。一対の冷却ドラム1,1の端面1a,1aはサ
イド堰2に装着されたセラミックス板5と摺動し、かつ
一対の冷却ドラム1,1の表面の端縁部1b,1bで溶
湯3をシールし、湯溜まり外部へ溶湯3が漏れ出すのを
防止している。この時、一対の冷却ドラム1,1の端面
1a,1aは互いに軸方向(ドラム軸心方向)の相対ず
れが無く、セラミックス板5と面で接触しなくてはなら
ない。FIG. 8 is an enlarged cross-sectional view taken along the line VIII-VIII of FIG. 7, showing the sliding portion of the end of the cooling drum and the side weir at the kissing point where the surfaces of the pair of cooling drums are closest. The end surfaces 1a, 1a of the pair of cooling drums 1, 1 slide with the ceramic plate 5 mounted on the side dam 2, and the molten metal 3 is sealed by the edge portions 1b, 1b of the surfaces of the pair of cooling drums 1, 1. In addition, the molten metal 3 is prevented from leaking out of the pool. At this time, the end faces 1a, 1a of the pair of cooling drums 1, 1 do not have any relative displacement in the axial direction (drum axis direction), and must be in surface contact with the ceramic plate 5.
【0004】上記のような冷却ドラム1の従来の内部構
造を図9〜図11に示す。いずれも冷却ドラム1は、そ
の剛性を高くするために外側の銅合金製のドラムスリー
ブ10を内側から鋼製のドラム胴体(コア部材)11で
支持する構造となっている。ドラム胴体11の両側端部
には中空軸部11aが一体的に組み付けられている。ま
た、図9〜図11中の矢印は冷却水の流れを示す。FIGS. 9 to 11 show a conventional internal structure of the cooling drum 1 as described above. Each of the cooling drums 1 has a structure in which an outer copper alloy drum sleeve 10 is supported by a steel drum body (core member) 11 from the inner side in order to increase the rigidity. Hollow shaft portions 11a are integrally attached to both end portions of the drum body 11. The arrows in FIGS. 9 to 11 indicate the flow of the cooling water.
【0005】図9に示す冷却ドラムは本出願人が特願昭
61−66897号で提案したもので、ドラム胴体11
と、このドラム胴体11の外周部に着脱可能に嵌装され
たドラムスリーブ10と、両者10,11の接合端部に
挿設されて両者10,11を固定する一対のウェッジリ
ング12A,12Bと、ドラム胴体11の両端面に固設
されて一方のウェッジリング12Bを押さえる押えリン
グ13とで構成されている。The cooling drum shown in FIG. 9 is proposed by the present applicant in Japanese Patent Application No. 61-66897.
A drum sleeve 10 removably fitted to the outer peripheral portion of the drum body 11; and a pair of wedge rings 12A, 12B inserted into and joined to the joining ends of the two 10, 11 to fix the two. And a pressing ring 13 fixed to both end surfaces of the drum body 11 and pressing one wedge ring 12B.
【0006】図10もドラムスリーブ10をその内側の
ドラム胴体11で支持する構造で、両者10,11の接
合端部を隅肉溶接14で接合させている。FIG. 10 also shows a structure in which the drum sleeve 10 is supported by the drum body 11 inside the drum sleeve 10, and the joining ends of the two 10 and 11 are joined by fillet welding 14.
【0007】図11はドラムスリーブ10をその内側の
ドラム胴体11で支持する構造で、両者10,11の接
触面全面を焼き嵌め15にて接合させている。FIG. 11 shows a structure in which a drum sleeve 10 is supported by a drum body 11 inside the drum sleeve 10, and the entire contact surfaces of the two 10 and 11 are joined by shrink fitting 15.
【0008】[0008]
【発明が解決しようとする課題】ところが、図9に示す
ものにあっては、ドラムスリーブ10の鋳造中の熱変形
による軸方向の伸びをウェッジリング12A,12Bの
摩擦力だけで拘束してスリップを防止することは出来
ず、ドラムスリーブ10は軸方向に伸び、ドラム中心に
対して軸方向に対称に伸びる保証はなく、よって一対の
冷却ドラム1,1の端部間に軸方向のずれが生じ、サイ
ド堰2との間の溶湯シールが不十分となる問題があっ
た。However, in the structure shown in FIG. 9, slippage is restricted by restricting the axial elongation due to thermal deformation during casting of the drum sleeve 10 only by the frictional force of the wedge rings 12A and 12B. The drum sleeve 10 extends in the axial direction, and there is no guarantee that the drum sleeve 10 will extend symmetrically in the axial direction with respect to the center of the drum. Therefore, there is no axial displacement between the ends of the pair of cooling drums 1 and 1. As a result, there is a problem that the molten metal seal between the side weir 2 and the side weir 2 becomes insufficient.
【0009】また、図10に示すものにあっては、ドラ
ムスリーブ10の伸びを拘束する隅肉溶接14部の耐久
性が小さく、一旦どちらかの溶接部が破壊されるとドラ
ムスリーブ10は中心に対して軸方向に対称に伸びる事
はなく、よって、一対の冷却ドラム1,1の端部間に軸
方向のずれが生じ、サイド堰2との間の溶湯シールが不
十分となる問題があった。Further, in the one shown in FIG. 10, the durability of the fillet weld 14 that restrains the elongation of the drum sleeve 10 is low, and once one of the welds is broken, the drum sleeve 10 is moved to the center. However, there is no problem that the molten metal seal between the ends of the pair of cooling drums 1 and 1 is insufficient and the molten metal seal between the side weirs 2 is insufficient. there were.
【0010】また、図11に示すものにあっては、ドラ
ムスリーブ10とドラム胴体11の接合部全面を締め付
けることが出来るが、ドラムスリーブ10の弾性変形内
で最もきつく締め付けることが出来たとしても、鋳造中
のドラムスリーブ10の伸び力は接合面の摩擦力よりも
強くなり、嵌合面でスリップし、またドラムスリーブ1
0は中心に対して対称に軸方向に伸びる保証がなく、よ
って本構造でも一対の冷却ドラム1,1の端部間に軸方
向のずれが生じ、サイド堰2との間の溶湯シールが不十
分となる問題があった。Further, in the structure shown in FIG. 11, the entire joint portion between the drum sleeve 10 and the drum body 11 can be tightened, but even if it can be tightened most tightly within the elastic deformation of the drum sleeve 10. The elongation of the drum sleeve 10 during casting becomes stronger than the frictional force of the joining surface, slips on the mating surface, and the drum sleeve 1
No. 0 is not guaranteed to extend in the axial direction symmetrically with respect to the center. Therefore, even in this structure, an axial displacement occurs between the ends of the pair of cooling drums 1 and 1, and the molten metal seal between the side weir 2 and the molten metal seal is not provided. There were enough problems.
【0011】本発明の目的は、冷却ドラムが高強度を保
ったドラムスリーブを有することができて、冷却ドラム
の疲労寿命を向上させることと、一対の冷却ドラムのド
ラムスリーブが互いに相対ずれを起こさないこととの2
つを満足させる連続鋳造用冷却ドラムを提供することに
ある。An object of the present invention is to improve the fatigue life of the cooling drum by allowing the cooling drum to have a high-strength drum sleeve, and to reduce the relative displacement between the drum sleeves of the pair of cooling drums. 2 with nothing
It is an object of the present invention to provide a cooling drum for continuous casting that satisfies one of the requirements.
【0012】[0012]
【課題を解決するための手段】前記目的を達成するため
の本発明に係る連続鋳造用冷却ドラムは、互いに反対方
向に回転する一対の冷却ドラムとサイド堰とによって形
成された湯溜りに、溶融金属を供給し、冷却ドラムの表
面に接触させて冷却することにより凝固シェルを形成さ
せて金属薄板を鋳造するドラム式連続鋳造機の冷却ドラ
ムであって、前記冷却ドラムは、両側端部に軸部を有す
るドラム胴体と、該ドラム胴体の外周部に嵌装されたド
ラムスリーブとを有すると共に、前記ドラム胴体は、前
記軸部を一体的に有して前記ドラムスリーブの端部にそ
れぞれ結合された一対のシャフト部材と、これらシャフ
ト部材間に位置して当該シャフト部材とは接触しないで
前記ドラムスリーブ内周面に焼き嵌めされたコア部材と
に分割形成されてなることを特徴とする。According to the present invention, there is provided a cooling drum for continuous casting according to the present invention, wherein a molten metal is formed in a pool formed by a pair of cooling drums rotating in opposite directions and a side weir. A cooling drum for a drum-type continuous casting machine for feeding metal, contacting the surface of the cooling drum and cooling to form a solidified shell and cast a thin metal plate, wherein the cooling drum has shafts at both ends. A drum body having a portion, and a drum sleeve fitted to an outer peripheral portion of the drum body, wherein the drum body integrally has the shaft portion and is respectively coupled to an end of the drum sleeve. A pair of shaft members, and a core member which is located between the shaft members and which is not in contact with the shaft members and which is shrink-fitted to the inner peripheral surface of the drum sleeve. And wherein the Rukoto.
【0013】また、前記ドラムスリーブとそれを内部か
ら支持するコア部材との焼き嵌めにおいて、ドラム軸心
方向中間部での締め代を端部の締め代より大きくしたこ
とを特徴とする。In the shrink fitting of the drum sleeve and the core member supporting the drum sleeve from the inside, the interference at the intermediate portion in the axial direction of the drum is made larger than the interference at the end.
【0014】また、前記ドラムスリーブを内側から支持
するコア部材のドラム軸心方向中間部の肉厚を端部の肉
厚よりも厚くしたことを特徴とする。Further, the thickness of the core member supporting the drum sleeve from the inside in the direction of the center of the drum axis is thicker than the thickness of the end portion.
【0015】また、前記ドラムスリーブの端部とシャフ
ト部材とはボルトにより締結されることを特徴とする。Further, the end of the drum sleeve and the shaft member are fastened by bolts.
【0016】[0016]
【発明の実施の形態】以下、本発明に係る連続鋳造用冷
却ドラムを実施例により図面を用いて詳細に説明する。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a cooling drum for continuous casting according to the present invention will be described in detail with reference to the drawings using examples.
【0017】[第1実施例]図1は本発明の第1実施例
を示す冷却ドラムの内部構造断面図、図2は同じく冷却
ドラム端部の嵌合面での面圧分布の説明図である。[First Embodiment] FIG. 1 is a sectional view of the internal structure of a cooling drum showing a first embodiment of the present invention, and FIG. 2 is an explanatory diagram of the surface pressure distribution on the fitting surface of the end of the cooling drum. is there.
【0018】図1に示すように、冷却ドラム1は、両側
端部に中空軸部11aを有するドラム胴体11と該ドラ
ム胴体11の外周部に嵌装されたドラムスリーブ10と
を有すると共に、前記ドラム胴体11は、前記中空軸部
11aを一体形成して前記ドラムスリーブ10の端部に
それぞれ接合された一対のシャフト部材11Aと、これ
らシャフト部材11A間に位置して当該シャフト部材1
1Aとは接触しないで前記ドラムスリーブ10内周面に
焼き嵌めされたコア部材11Bとに分割形成される。As shown in FIG. 1, the cooling drum 1 has a drum body 11 having a hollow shaft portion 11a at both ends and a drum sleeve 10 fitted around the outer periphery of the drum body 11. The drum body 11 includes a pair of shaft members 11A integrally formed with the hollow shaft portion 11a and joined to the ends of the drum sleeve 10, and the shaft member 1 positioned between the shaft members 11A.
A core member 11B shrink-fitted to the inner peripheral surface of the drum sleeve 10 without contact with the core member 11B.
【0019】前記ドラムスリーブ10は、溶体化処理
後、冷間鍛造と時効処理を施し高強度となった材料(例
えば銅合金等)を使用し、前記コア部材11Bとは焼き
嵌め15にて接合させている。この時、ドラム軸心方向
中間部での焼き嵌め接合面の締め代(クラウン付与によ
る)を端部の締め代の約1.2倍としておく。The drum sleeve 10 is made of a material (for example, a copper alloy or the like) which has been subjected to a cold forging and aging treatment after the solution treatment, and has a high strength. Let me. At this time, the interference (by giving a crown) of the shrink fit joint surface at the intermediate portion in the axial direction of the drum is set to about 1.2 times the interference of the end portion.
【0020】前記一対のシャフト部材11Aとドラムス
リーブ10との接合は、焼き嵌めとして、前記コア部材
11Bとドラムスリーブ10との焼き嵌めの場合よりも
締め代は小さ目にする。尚、シャフト部材11Aとコア
部材11Bは剛性材料(例えばステンレス鋼等)を使用
する。The joint between the pair of shaft members 11A and the drum sleeve 10 is a shrink fit, and the interference is smaller than in the case of the shrink fit between the core member 11B and the drum sleeve 10. The shaft member 11A and the core member 11B use rigid materials (for example, stainless steel).
【0021】冷却水は一方のシャフト部材11Aの中空
軸部11aから流入し、他方のシャフト部材11Aの中
空軸部11aから排出される。そして、冷却ドラム1の
内部では、冷却水は二系統の冷却水系をたどるようにな
っている。The cooling water flows in from the hollow shaft portion 11a of one shaft member 11A and is discharged from the hollow shaft portion 11a of the other shaft member 11A. Then, inside the cooling drum 1, the cooling water follows a two-system cooling water system.
【0022】その一つは、一方のシャフト部材11Aの
中空軸部11aから流入した冷却水は、一方のシャフト
部材11A内部の冷却水孔17aからドラムスリーブ1
0内部の冷却水孔18bへ導かれ、ここでドラムスリー
ブ10に蓄熱された熱を奪った後、他方のシャフト部材
11A内部の冷却水孔17d及び冷却水ジャケット19
bを通って他方のシャフト部材11Aの中空軸部11a
から冷却ドラム外部へ排出される。One of them is that the cooling water flowing from the hollow shaft portion 11a of the one shaft member 11A flows through the cooling water hole 17a inside the one shaft member 11A from the drum sleeve 1A.
After being guided to the cooling water hole 18b inside the cooling water hole 18b and taking away the heat stored in the drum sleeve 10, the cooling water hole 17d inside the other shaft member 11A and the cooling water jacket 19
b through the hollow shaft portion 11a of the other shaft member 11A.
From the cooling drum.
【0023】もう一つは、他方のシャフト部材11A内
部の冷却水孔17bからドラムスリーブ10内部の冷却
水孔18aへ導かれ、ここでドラムスリーブ10に蓄熱
された熱を奪った後、一方のシャフト部材11A内部の
冷却水孔17c及び冷却水ジャケット19aを通り、更
には冷却水配管20を通って他方のシャフト部材11A
の冷却水ジャケット19bに至り、ここから他方のシャ
フト部材11Aの中空軸部11aを通って冷却ドラム外
部へ排出される。The other is guided from the cooling water hole 17b inside the other shaft member 11A to the cooling water hole 18a inside the drum sleeve 10, where the heat stored in the drum sleeve 10 is taken away, and then the other one is taken. The other shaft member 11A passes through the cooling water hole 17c and the cooling water jacket 19a inside the shaft member 11A, and further passes through the cooling water pipe 20.
The cooling water jacket 19b is discharged from the cooling drum through the hollow shaft portion 11a of the other shaft member 11A.
【0024】これらの二系統の冷却水系は冷却ドラム1
の円周方向に交互に配置するので、ドラムスリーブ10
内部の冷却水孔18a,18bを流れる冷却水は対向流
となる。The cooling water system of these two systems is a cooling drum 1
Are arranged alternately in the circumferential direction of the drum sleeve 10.
The cooling water flowing through the internal cooling water holes 18a and 18b has a counterflow.
【0025】このように構成されたドラム式連続鋳造機
の冷却ドラム1によれば、ドラムスリーブ10とコア部
材11Bは焼き嵌め15によって接合させているので、
鋳造中のドラムスリーブ10とコア部材11Bに熱膨張
差によってせん断応力が大きくなり、接合面はスリップ
する。しかし、本構造はコア部材11Bと一対のシャフ
ト部材11Aとは別体で、かつ非接触とし、シャフト部
材11Aの嵌合面長を短くしているので、鋳造中には図
2に示すような面圧分布pが現れ、シャフト部材11A
の内側(ドラム軸心方向中間部側)の嵌合面がスリップ
し、外側はスリップしない。これにより、一対の冷却ド
ラム1の軸受けを基準にしてドラム端面の軸方向の相対
ずれが無くなる。According to the cooling drum 1 of the drum type continuous casting machine configured as described above, the drum sleeve 10 and the core member 11B are joined by the shrink fit 15.
Shear stress increases due to a difference in thermal expansion between the drum sleeve 10 and the core member 11B during casting, and the joining surface slips. However, in this structure, the core member 11B and the pair of shaft members 11A are separate and non-contact, and the fitting surface length of the shaft member 11A is shortened. The surface pressure distribution p appears, and the shaft member 11A
The inner side (the middle side in the drum axis direction) slips, and the outer side does not slip. Thereby, relative displacement in the axial direction of the drum end surface with respect to the bearing of the pair of cooling drums 1 is eliminated.
【0026】また、ドラムスリーブ10とコア部材11
Bのドラム軸心方向中間部での接合面の締め代を端部の
締め代の約1.2倍としているので、前記中間部では端
部よりも面圧抵抗が大きくなるのでスリップせず、ドラ
ムスリーブ10とコア部材11Bの前記中間部を基準に
して両端部がドラム1回転毎にわずかにすべることにな
り、コア部材11B全体としの大きな移動は生じない。The drum sleeve 10 and the core member 11
Since the interference of the joining surface at the intermediate portion in the drum axis direction of B is about 1.2 times the interference of the end, the surface pressure resistance at the intermediate portion is larger than that at the end, so that no slip occurs. Both ends of the drum sleeve 10 and the core member 11B slide slightly with each rotation of the drum with respect to the intermediate portion, so that large movement of the entire core member 11B does not occur.
【0027】[第2実施例]図3は本発明の第2実施例
を示す冷却ドラムの内部構造断面図である。Second Embodiment FIG. 3 is a sectional view showing the internal structure of a cooling drum according to a second embodiment of the present invention.
【0028】これは、焼き嵌めの締め代を大きくするコ
ア部材11Bのドラム軸心方向中間部の肉厚を端部より
厚くし、大きな面圧抵抗を保つようにした例であり、第
1実施例と同様の効果が得られる。This is an example in which the thickness of the intermediate portion in the axial direction of the drum of the core member 11B for increasing the interference of shrink fitting is made thicker than the end portion to maintain a large surface pressure resistance. The same effect as the example can be obtained.
【0029】[第3実施例]図4は本発明の第3実施例
を示す冷却ドラムの端部構造断面図である。[Third Embodiment] FIG. 4 is a sectional view of the end structure of a cooling drum showing a third embodiment of the present invention.
【0030】これは、ドラムスリーブ10とシャフト部
材11Aとの接合を、焼き嵌めからボルト21による締
結に変更した例である。これによれば、第1実施例と同
様の効果に加えて、嵌合面の締め代を小さくできるた
め、シャフト部材11Aの着脱が容易であるという利点
が得られる。This is an example in which the joining between the drum sleeve 10 and the shaft member 11A is changed from shrink fitting to fastening with bolts 21. According to this, in addition to the same effect as in the first embodiment, since the interference of the fitting surface can be reduced, there is obtained an advantage that the attachment and detachment of the shaft member 11A is easy.
【0031】[第4実施例]図5は本発明の第4実施例
を示す冷却ドラムの端部構造断面図である。[Fourth Embodiment] FIG. 5 is a sectional view of the end structure of a cooling drum showing a fourth embodiment of the present invention.
【0032】これは、ドラムスリーブ10とシャフト部
材11Aとの接合を、溶接14により行うようにした例
である。これによれば、第1実施例と同様の効果に加え
て、接合作業が容易かつ迅速に行えるという利点が得ら
れる。This is an example in which the drum sleeve 10 and the shaft member 11A are joined by welding 14. According to this, in addition to the same effect as the first embodiment, there is obtained an advantage that the joining operation can be performed easily and quickly.
【0033】[第5実施例]図6は本発明の第5実施例
を示す冷却ドラムの端部構造断面図である。[Fifth Embodiment] FIG. 6 is a sectional view of the end structure of a cooling drum showing a fifth embodiment of the present invention.
【0034】これは、ドラムスリーブ10をシャフト部
材11Aとボルト21結合された鋼製リング23で支持
するようにした例である。これによれば、第1実施例と
同様の効果に加えて、シャフト部材11Aの材料選択に
自由度があるという利点が得られる。This is an example in which the drum sleeve 10 is supported by a steel ring 23 connected to a shaft member 11A and a bolt 21. According to this, in addition to the same effect as in the first embodiment, there is obtained an advantage that the material of the shaft member 11A can be freely selected.
【0035】尚、本発明は上記各実施例に限定されず、
本発明の要旨を逸脱しない範囲で各種変更が可能である
ことはいうまでもない。The present invention is not limited to the above embodiments,
It goes without saying that various changes can be made without departing from the spirit of the present invention.
【0036】[0036]
【発明の効果】以上詳細に説明したように、請求項1の
発明によれば、互いに反対方向に回転する一対の冷却ド
ラムとサイド堰とによって形成された湯溜りに、溶融金
属を供給し、冷却ドラムの表面に接触させて冷却するこ
とにより凝固シェルを形成させて金属薄板を鋳造するド
ラム式連続鋳造機の冷却ドラムであって、前記冷却ドラ
ムは、両側端部に軸部を有するドラム胴体と、該ドラム
胴体の外周部に嵌装されたドラムスリーブとを有すると
共に、前記ドラム胴体は、前記軸部を一体的に有して前
記ドラムスリーブの端部にそれぞれ結合された一対のシ
ャフト部材と、これらシャフト部材間に位置して当該シ
ャフト部材とは接触しないで前記ドラムスリーブ内周面
に焼き嵌めされたコア部材とに分割形成されてなること
を特徴とするので、一対の冷却ドラム端部の軸方向ずれ
を防止でき、溶湯洩れを未然に回避出来る。As described above in detail, according to the first aspect of the present invention, molten metal is supplied to a pool formed by a pair of cooling drums and side weirs rotating in opposite directions. A cooling drum of a drum-type continuous casting machine for casting a thin metal plate by forming a solidified shell by contacting and cooling a surface of a cooling drum, wherein the cooling drum has a shaft body at both end portions. And a drum sleeve fitted around the outer periphery of the drum body, wherein the drum body has a pair of shaft members integrated with the shaft portion and respectively coupled to ends of the drum sleeve. And a core member which is located between the shaft members and which is not in contact with the shaft member and which is shrink-fitted to the inner peripheral surface of the drum sleeve. Prevents axial displacement of the pair of cooling drums end, can be avoided leakage melt in advance.
【0037】また、請求項2の発明によれば、前記ドラ
ムスリーブとそれを内部から支持するコア部材との焼き
嵌めにおいて、ドラム軸心方向中間部での締め代を端部
の締め代より大きくしたことを特徴とするので、前記中
間部では端部よりも面圧抵抗が大きくなるのでスリップ
せず、ドラムスリーブとコア部材の前記中間部を基準に
して両端部がドラム1回転毎にわずかにすべることにな
り、コア部材全体としの大きな移動は生じない。According to the second aspect of the present invention, when shrink-fitting the drum sleeve with the core member supporting the drum sleeve from the inside, the interference at the intermediate portion in the axial direction of the drum is larger than the interference at the end. Since the surface pressure resistance is larger at the intermediate portion than at the end portion, slip does not occur, and both ends are slightly changed every one rotation of the drum with respect to the intermediate portion of the drum sleeve and the core member. As a result, a large movement of the entire core member does not occur.
【0038】また、請求項3の発明によれば、前記ドラ
ムスリーブを内側から支持するコア部材のドラム軸心方
向中間部の肉厚を端部の肉厚よりも厚くしたことを特徴
とするので、請求項2の発明と同様の効果が得られる。According to the third aspect of the invention, the thickness of the core member supporting the drum sleeve from the inside in the direction of the drum axis is made thicker than the thickness of the end portion. Thus, the same effect as the second aspect of the invention can be obtained.
【0039】また、請求項4の発明によれば、前記ドラ
ムスリーブの端部とシャフト部材とはボルトにより締結
されることを特徴とするので、嵌合面の締め代を小さく
できるため、シャフト部材の着脱が容易である。According to the fourth aspect of the present invention, since the end of the drum sleeve and the shaft member are fastened by bolts, the interference of the fitting surface can be reduced, so that the shaft member Is easy to attach and detach.
【図1】本発明の第1実施例を示す冷却ドラムの内部構
造断面図である。FIG. 1 is a sectional view showing the internal structure of a cooling drum according to a first embodiment of the present invention.
【図2】同じく冷却ドラム端部の嵌合面での面圧分布の
説明図である。FIG. 2 is an explanatory diagram of a surface pressure distribution on a fitting surface of a cooling drum end.
【図3】本発明の第2実施例を示す冷却ドラムの内部構
造断面図である。FIG. 3 is a sectional view showing the internal structure of a cooling drum according to a second embodiment of the present invention.
【図4】本発明の第3実施例を示す冷却ドラムの端部構
造断面図である。FIG. 4 is a sectional view of an end structure of a cooling drum showing a third embodiment of the present invention.
【図5】本発明の第4実施例を示す冷却ドラムの端部構
造断面図である。FIG. 5 is a sectional view of an end structure of a cooling drum showing a fourth embodiment of the present invention.
【図6】本発明の第5実施例を示す冷却ドラムの端部構
造断面図である。FIG. 6 is a sectional view of an end structure of a cooling drum showing a fifth embodiment of the present invention.
【図7】一般的なドラム式連続鋳造機の斜視図である。FIG. 7 is a perspective view of a general drum type continuous casting machine.
【図8】一対の冷却ドラムの表面が最も接近するキッシ
ングポイントでの冷却ドラムの端部とサイド堰の摺動部
を示す、図7のVIII−VIII矢視拡大断面図である。FIG. 8 is an enlarged cross-sectional view taken along the line VIII-VIII of FIG. 7, showing a sliding portion of an end of the cooling drum and a side weir at a kissing point where surfaces of a pair of cooling drums are closest.
【図9】従来例の冷却ドラムの内部構造断面図である。FIG. 9 is a cross-sectional view of the internal structure of a conventional cooling drum.
【図10】異なった従来例の冷却ドラムの端部構造断面
図である。FIG. 10 is a sectional view of an end structure of a cooling drum according to a different conventional example.
【図11】異なった従来例の冷却ドラムの端部構造断面
図である。FIG. 11 is a sectional view of an end structure of a cooling drum of a different conventional example.
1 冷却ドラム 1a 端面 1b 端縁部 2 サイド堰 3 溶融金属 4 薄帯鋳片 5 セラミックス板 10 ドラムスリーブ 11 ドラム胴体 11A シャフト部材 11B コア部材 11a 中空軸部 12A ウェッジリング 12B ウェッジリング 13 押えリング 14 隅肉溶接 15 焼き嵌め 17a〜17d 冷却水孔 18a,18b 冷却水孔 19a,19b 冷却水ジャケット 20 冷却水配管 21 ボルト 22 溶接 23 鋼製リング DESCRIPTION OF SYMBOLS 1 Cooling drum 1a End surface 1b Edge 2 Side weir 3 Molten metal 4 Strip casting 5 Ceramic plate 10 Drum sleeve 11 Drum body 11A Shaft member 11B Core member 11a Hollow shaft portion 12A Wedge ring 12B Wedge ring 13 Pressing ring 14 Corner Meat welding 15 Shrink fitting 17a-17d Cooling water holes 18a, 18b Cooling water holes 19a, 19b Cooling water jacket 20 Cooling water piping 21 Bolt 22 Welding 23 Steel ring
フロントページの続き (72)発明者 橋本 律男 広島県広島市西区観音新町四丁目6番22号 三菱重工業株式会社広島研究所内 (72)発明者 谷 光夫 広島県広島市西区観音新町四丁目6番22号 三菱重工業株式会社広島研究所内 (72)発明者 横尾 和俊 広島県広島市西区観音新町四丁目6番22号 三菱重工業株式会社広島研究所内 (72)発明者 三宅 勝義 広島県広島市西区観音新町四丁目6番22号 三菱重工業株式会社広島製作所内 (72)発明者 遊佐 丈二 広島県広島市西区観音新町四丁目6番22号 三菱重工業株式会社広島製作所内 (72)発明者 恒成 敬二 千葉県富津市新富20−1 新日本製鐵株式 会社技術開発本部内 (72)発明者 山村 和人 千葉県富津市新富20−1 新日本製鐵株式 会社技術開発本部内 (72)発明者 山田 衛 山口県光市大字島田3434番地 新日本製鐵 株式会社光製鉄所内 (72)発明者 伊崎 弘 山口県光市大字島田3434番地 新日本製鐵 株式会社光製鉄所内 Fターム(参考) 4E004 LC02 QA20 Continued on the front page. (72) Ritsuo Hashimoto, Inventor 4-62, Kannonshinmachi, Nishi-ku, Hiroshima-shi, Hiroshima Mitsubishi Heavy Industries, Ltd. Hiroshima Research Laboratory (72) Mitsuo Tani 4-6-22 Kannonshinmachi, Nishi-ku, Hiroshima, Hiroshima, Japan No. Within Hiroshima Research Laboratory, Mitsubishi Heavy Industries, Ltd. (72) Kazutoshi Yokoo, Inventor Kazutoshi Yokoo 4-2-2 Kannon Shinmachi, Nishi-ku, Hiroshima City, Hiroshima Prefecture Inside Hiroshima Research Laboratory, Mitsubishi Heavy Industries, Ltd. In the Hiroshima Works of Mitsubishi Heavy Industries, Ltd. (72) Inventor Joji Yuza 4-6-22 Kannon Shinmachi, Nishi-ku, Hiroshima-shi, Hiroshima In the Hiroshima Works of Mitsubishi Heavy Industries, Ltd. (72) Keiji Tsuneari Futtsu, Chiba Prefecture 20-1 Shintomi, Nippon Steel Corporation Technology Development Division (72) Inventor Kazuto Yamamura 20-1 Shintomi, Futtsu-shi, Chiba Prefecture Nippon Steel Corporation Technology Development Division (72) Inventor Mamoru Yamada Yamaguchi Prefecture 3434 Shimada, Hikari-shi Nippon Steel Hikari Co., Ltd. Inside steelworks (72) Inventor Hiroshi Izaki 3434 Shimada, Hikari-shi, Yamaguchi Prefecture Nippon Steel Corporation Hikari Works, F-term (reference) 4E004 LC02 QA20
Claims (4)
ラムとサイド堰とによって形成された湯溜りに、溶融金
属を供給し、冷却ドラムの表面に接触させて冷却するこ
とにより凝固シェルを形成させて金属薄板を鋳造するド
ラム式連続鋳造機の冷却ドラムであって、 前記冷却ドラムは、両側端部に軸部を有するドラム胴体
と、該ドラム胴体の外周部に嵌装されたドラムスリーブ
とを有すると共に、前記ドラム胴体は、前記軸部を一体
的に有して前記ドラムスリーブの端部にそれぞれ結合さ
れた一対のシャフト部材と、これらシャフト部材間に位
置して当該シャフト部材とは接触しないで前記ドラムス
リーブ内周面に焼き嵌めされたコア部材とに分割形成さ
れてなることを特徴とする連続鋳造用冷却ドラム。1. A molten metal is supplied to a pool formed by a pair of cooling drums and side weirs rotating in opposite directions to each other, and the solidified shell is formed by contacting the surface of the cooling drum and cooling. A cooling drum of a drum-type continuous casting machine for casting a thin metal plate, wherein the cooling drum comprises: a drum body having shaft portions at both end portions; and a drum sleeve fitted around an outer peripheral portion of the drum body. And the drum body has a pair of shaft members integrally having the shaft portion and respectively coupled to ends of the drum sleeve, and is located between the shaft members and does not contact the shaft members. And a core member shrink-fitted on the inner peripheral surface of the drum sleeve.
持するコア部材との焼き嵌めにおいて、ドラム軸心方向
中間部での締め代を端部の締め代より大きくしたことを
特徴とする請求項1記載の連続鋳造用冷却ドラム。2. A shrink fit between the drum sleeve and a core member supporting the drum sleeve from the inside thereof, wherein an interference at an intermediate portion in the axial direction of the drum is larger than an interference at an end. The cooling drum for continuous casting according to the above.
コア部材のドラム軸心方向中間部の肉厚を端部の肉厚よ
りも厚くしたことを特徴とする請求項1記載の連続鋳造
用冷却ドラム。3. The cooling drum for continuous casting according to claim 1, wherein a thickness of an intermediate portion of the core member supporting the drum sleeve from the inner side in a drum axial direction is thicker than a thickness of an end portion. .
材とはボルトにより締結されることを特徴とする請求項
1,2又は3記載の連続鋳造用冷却ドラム。4. The cooling drum for continuous casting according to claim 1, wherein an end of said drum sleeve and a shaft member are fastened by bolts.
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000218659A JP3831583B2 (en) | 2000-07-19 | 2000-07-19 | Cooling drum for continuous casting |
KR10-2002-7003583A KR100513215B1 (en) | 2000-07-19 | 2001-07-19 | Dual drum type continuous casting device and method for continuous casting |
EP01950031A EP1302260B1 (en) | 2000-07-19 | 2001-07-19 | Dual drum type continuous casting device |
DE60130339T DE60130339T2 (en) | 2000-07-19 | 2001-07-19 | TWO ROLLER STRANGGIESSMASCHIENE |
CA002384034A CA2384034C (en) | 2000-07-19 | 2001-07-19 | Twin-drum continuous casting apparatus and method |
CA2587014A CA2587014C (en) | 2000-07-19 | 2001-07-19 | Twin-drum continuous casting apparatus and method |
EP06020771A EP1769863A3 (en) | 2000-07-19 | 2001-07-19 | Dual drum type continuous casting method for continuous casting |
CNB018020445A CN1195599C (en) | 2000-07-19 | 2001-07-19 | Dual drum type continuous casting device and method for continuous casting |
CA002587148A CA2587148C (en) | 2000-07-19 | 2001-07-19 | Twin-drum continuous casting apparatus and method |
AU71076/01A AU767625B2 (en) | 2000-07-19 | 2001-07-19 | Dual drum type continuous casting device and method for continuous casting |
US10/069,069 US7147033B2 (en) | 2000-07-19 | 2001-07-19 | Dual drum type continuous casting device and method for continuous casting |
PCT/JP2001/006268 WO2002005987A1 (en) | 2000-07-19 | 2001-07-19 | Dual drum type continuous casting device and method for continuous casting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000218659A JP3831583B2 (en) | 2000-07-19 | 2000-07-19 | Cooling drum for continuous casting |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2002035897A true JP2002035897A (en) | 2002-02-05 |
JP3831583B2 JP3831583B2 (en) | 2006-10-11 |
Family
ID=18713577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000218659A Expired - Fee Related JP3831583B2 (en) | 2000-07-19 | 2000-07-19 | Cooling drum for continuous casting |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3831583B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002035898A (en) * | 2000-07-27 | 2002-02-05 | Mitsubishi Heavy Ind Ltd | Cooling drum for continuous casting |
-
2000
- 2000-07-19 JP JP2000218659A patent/JP3831583B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002035898A (en) * | 2000-07-27 | 2002-02-05 | Mitsubishi Heavy Ind Ltd | Cooling drum for continuous casting |
Also Published As
Publication number | Publication date |
---|---|
JP3831583B2 (en) | 2006-10-11 |
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