JP2000317514A - Steel strip supporting roll - Google Patents
Steel strip supporting rollInfo
- Publication number
- JP2000317514A JP2000317514A JP11128034A JP12803499A JP2000317514A JP 2000317514 A JP2000317514 A JP 2000317514A JP 11128034 A JP11128034 A JP 11128034A JP 12803499 A JP12803499 A JP 12803499A JP 2000317514 A JP2000317514 A JP 2000317514A
- Authority
- JP
- Japan
- Prior art keywords
- steel strip
- roll
- sleeve
- fitting
- strip supporting
- 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
Links
Landscapes
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、連続溶融めっき設
備、連続酸洗設備、連続塗装設備、連続焼鈍設備などに
送り込まれる鋼帯を支持する鋼帯支持ロールに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel strip supporting roll for supporting a steel strip fed to a continuous hot-dip plating facility, a continuous pickling facility, a continuous coating facility, a continuous annealing facility, and the like.
【０００２】[0002]
【従来の技術】図３は溶融亜鉛めっき設備を示す。図３
において、表面を清浄、活性化した鋼帯１は溶融金属浴
２の中に浸漬され、浴中のシンクロール３により進行方
向を変え上方に引き上げられ、サポートロール４により
鋼帯１の反りや振動を防止する。ガスワイピング５によ
り高速ガスが吹き付けられ、そのガス圧、吹き付け角度
により付着めっき厚さが調整される。次いで、鋼帯１は
搬送ロール６を通過し、鋼帯支持ロール７により鋼帯１
を支持して搬送される。2. Description of the Related Art FIG. 3 shows a hot-dip galvanizing equipment. FIG.
In the above, the steel strip 1 whose surface has been cleaned and activated is immersed in a molten metal bath 2, the traveling direction is pulled up by a sink roll 3 in the bath, and the steel strip 1 is warped or vibrated by a support roll 4. To prevent A high-speed gas is blown by the gas wiping 5, and the thickness of the adhered plating is adjusted by the gas pressure and the spray angle. Next, the steel strip 1 passes through the transport roll 6 and is moved by the steel strip support roll 7.
And is transported.
【０００３】従来の鋼帯支持ロール７は、図２に示すよ
うに中空円筒状の鋼材８の両端部に軸部９を嵌入固定し
たものからなり、鋼材８の表面にはクロムめっきが施さ
れていた。As shown in FIG. 2, a conventional steel strip supporting roll 7 is composed of a hollow cylindrical steel material 8 having shaft portions 9 fitted and fixed at both ends, and the surface of the steel material 8 is plated with chromium. I was
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
鋼帯支持ロールは摩耗が激しく短寿命という問題があっ
た。鋼帯支持ロールが摩耗しすぎるとその交換のため設
備ラインを停止しなければならなく生産性が低下する。
また、鋼帯支持ロール表面の肌荒れが著しくなり鋼帯表
面の品質を劣化させる問題があった。However, the conventional steel strip supporting roll has a problem that the wear is severe and the service life is short. If the steel strip support rolls become too worn, the equipment line must be shut down for replacement and the productivity is reduced.
In addition, there is a problem that the surface roughness of the steel strip supporting roll surface becomes remarkable and the quality of the steel strip surface is deteriorated.
【０００５】本発明は、このような問題を解決すること
を目的としてなされたものであって、耐摩耗性および耐
肌荒れ性に優れる鋼帯支持ロールを提供することを課題
とする。An object of the present invention is to solve such a problem, and an object of the present invention is to provide a steel strip supporting roll having excellent abrasion resistance and surface roughening resistance.
【０００６】[0006]
【課題を解決するための手段】本発明の鋼帯支持ロール
は、連続溶融めっき設備、連続酸洗設備、連続塗装設
備、連続焼鈍設備などで鋼帯ループを支持するために設
置される鋼帯支持ロールにおいて、少なくとも鋼帯と接
触する部分がセラミックスまたは超硬合金からなる中空
円筒状のロール胴部と、前記ロール胴部に嵌入固定した
中空円筒状のスリーブと、前記スリーブの両端部に嵌入
固定した軸部を有することを特徴とする。A steel strip supporting roll according to the present invention is a steel strip installed for supporting a steel strip loop in a continuous hot-dip plating facility, a continuous pickling facility, a continuous coating facility, a continuous annealing facility, and the like. In the support roll, at least a portion in contact with the steel strip is formed of a ceramic or cemented carbide, a hollow cylindrical roll body, a hollow cylindrical sleeve fitted and fixed to the roll body, and fitted into both ends of the sleeve. It has a fixed shaft portion.
【０００７】本発明において、前記ロール胴部が窒化ケ
イ素系、炭化ケイ素系、アルミナ系、およびジルコニア
系セラミックス焼結体のいずれかからなる、もしくはＷ
Ｃ−Ｃｏ系、ＷＣ−Ｃｏ−Ｎｉ系、およびＷＣ−Ｃｏ−
Ｎｉ−Ｆｅ系超硬合金のいずれかからなることを特徴と
する。また、前記スリーブが低熱膨張性金属材料からな
る、好ましくは２０℃から３００℃までの平均熱膨張係
数が１〜５×１０-6／℃の特性を有することを特徴とす
る。In the present invention, the roll body is made of any one of silicon nitride, silicon carbide, alumina, and zirconia ceramic sintered bodies.
C-Co-based, WC-Co-Ni-based, and WC-Co-
It is characterized by being made of any one of Ni-Fe cemented carbides. Further, the sleeve is made of a low thermal expansion metal material, and preferably has a characteristic of an average thermal expansion coefficient of 1 to 5 × 10 −6 / ° C. from 20 ° C. to 300 ° C.
【０００８】[0008]
【作用】本発明によれば、ロール胴部がセラミックスま
たは超硬合金からなるので耐摩耗性に優れる。セラミッ
クスは超硬合金より軽量なのでよい、なかでも窒化ケイ
素やサイアロンセラミックス焼結体は、熱膨張係数が約
３×１０-6／℃と小さく耐熱衝撃性に優れ、高温高強度
を有し、鋼帯との摩擦によりその表面に強固な結合力を
もつ緻密なシリカガラス酸化層が形成されこれが鋼帯と
接触して光沢のある鏡面となり表面肌荒れもなく鋼帯表
面の品質が劣化しないので好ましい。According to the present invention, since the roll body is made of ceramics or cemented carbide, it has excellent wear resistance. Ceramics are lighter than cemented carbides, so silicon nitride and sialon ceramics sintered compacts have a small thermal expansion coefficient of about 3 × 10 -6 / ° C and have excellent thermal shock resistance, high temperature and high strength, A fine silica glass oxide layer having a strong bonding force is formed on the surface due to friction with the band, and this is preferable because it forms a glossy mirror surface in contact with the steel band and does not roughen the surface and does not deteriorate the quality of the surface of the steel band.
【０００９】ロール胴部に中空円筒状のスリーブを嵌入
固定し、さらにスリーブの両端部に軸部を嵌入固定する
ため、スリーブと軸部を溶接して強固に接合することが
できる。また、ロール胴部とスリーブの熱膨張係数の差
が大きいとロール胴部が張り割れやすいので、スリーブ
を低熱膨張性金属材料で形成することによりロール胴部
の張り割れを防止できる。Since the hollow cylindrical sleeve is fitted and fixed to the roll body and the shaft is fitted and fixed to both ends of the sleeve, the sleeve and the shaft can be welded and firmly joined. In addition, if the difference between the coefficients of thermal expansion of the roll body and the sleeve is large, the roll body is likely to be cracked. Therefore, forming the sleeve with a low thermal expansion metal material can prevent the roll body from being cracked.
【００１０】[0010]
【発明の実施の形態】平均粒径０．８μｍのα−Ｓｉ3
Ｎ4粉末：８７重量％、平均粒径０．５μｍのＡｌ2Ｏ3
粉末：５重量％、平均粒径０．５μｍのＡｌＮ固溶体粉
末：３重量％、平均粒径１．０μｍのＹ2Ｏ3粉末：５重
量％を配合し、ポリビニルブチラールをバインダーとし
て原料粉末１００重量部当たり０．５重量％を加えて撹
拌して得た混合物を、１０００ｋｇ／ｃｍ2の圧力でＣ
ＩＰ成形した。次に、常圧、窒素雰囲気下、１７５０℃
で５時間焼結してサイアロンセラミックス焼結体を得
た。DESCRIPTION OF THE PREFERRED EMBODIMENTS α-Si 3 having an average particle size of 0.8 μm
N 4 powder: 87% by weight, Al 2 O 3 having an average particle size of 0.5 μm
Powder: 5% by weight, AlN solid solution powder having an average particle size of 0.5 μm: 3% by weight, Y 2 O 3 powder having an average particle size of 1.0 μm: 5% by weight, and raw material powder 100% by weight using polyvinyl butyral as a binder The mixture obtained by adding 0.5% by weight per part and stirring was mixed with C at a pressure of 1000 kg / cm 2.
IP molded. Next, at 1750 ° C. under normal pressure and nitrogen atmosphere
For 5 hours to obtain a Sialon ceramics sintered body.
【００１１】この焼結体は理論密度の９９．１％の密度
を有し、常温におけるビッカース硬度Ｈｖが１５８０、
常温における３点曲げによる曲げ強さが１００ｋｇｆ／
ｍｍ 2であった。得られた焼結体を機械加工して中空円
筒状のサイアロン製鋼帯支持ロールのロール胴部を作製
した。The sintered body has a density of 99.1% of the theoretical density.
Having a Vickers hardness Hv at room temperature of 1580,
The flexural strength by three-point bending at room temperature is 100 kgf /
mm TwoMet. The resulting sintered body is machined into a hollow circle
Manufacture roll body of cylindrical Sialon steel strip support roll
did.
【００１２】また、２０℃から３００℃までの平均熱膨
張係数が１〜５×１０-6／℃であるＦｅ−Ｎｉ−Ｃｏ−
Ａｌ−Ｔｉ系合金を用いて中空円筒状のスリーブを作製
した。好ましいＦｅ−Ｎｉ−Ｃｏ−Ａｌ−Ｔｉ系合金は
Ｎｉ：３０〜３５重量％、Ｃｏ：１２〜１７重量％、Ａ
ｌ：０.５〜１.５重量％、Ｔｉ：１.５〜３重量％、残
部Ｆｅからなる。さらに、金属材料からなる中実の軸部
を２個作製した。Further, Fe—Ni—Co— having an average coefficient of thermal expansion from 20 ° C. to 300 ° C. of 1 to 5 × 10 −6 / ° C.
A hollow cylindrical sleeve was manufactured using an Al-Ti alloy. Preferred Fe—Ni—Co—Al—Ti alloys are Ni: 30 to 35% by weight, Co: 12 to 17% by weight,
l: 0.5 to 1.5% by weight, Ti: 1.5 to 3% by weight, balance Fe. Further, two solid shaft portions made of a metal material were produced.
【００１３】図１は本発明の鋼帯支持ロールの一例を示
す。図１において、鋼帯支持ロール７のロール胴部１２
は外径φ１４０ｍｍ、肉厚１５ｍｍ、長さ１８００ｍｍ
である。スリーブ１３は外径φ９０ｍｍ、長さ２２００
ｍｍであり、軸部１４は長さ２５０ｍｍである。ロール
胴部１２の中空部にスリーブ１３を嵌入し、両者の隙間
に嵌合用リング１５を嵌合させて、ロール胴部１２の側
面に固定用リング１６を当接させて、固定用リング１６
とスリーブ１３をボルト１７により固定した。また、ス
リーブ１３の両端部に軸部１４を嵌入し溶接により固定
した。FIG. 1 shows an example of the steel strip supporting roll of the present invention. In FIG. 1, a roll body 12 of a steel strip support roll 7 is shown.
Is outer diameter φ140mm, wall thickness 15mm, length 1800mm
It is. The sleeve 13 has an outer diameter of 90 mm and a length of 2200
mm, and the shaft portion 14 has a length of 250 mm. The sleeve 13 is fitted into the hollow portion of the roll body 12, the fitting ring 15 is fitted into the gap between them, and the fixing ring 16 is brought into contact with the side surface of the roll body 12.
And the sleeve 13 were fixed by bolts 17. The shafts 14 were fitted into both ends of the sleeve 13 and fixed by welding.
【００１４】この本発明の鋼帯支持ロールを連続溶融め
っき設備ラインにおいて、鋼帯（ＳＵＳ３００系ステン
レス鋼、板厚が２ｍｍ、板幅が１３００ｍ）に適用した
結果、３ヶ月使用しても鋼帯支持ロールの摩耗量は０．
１ｍｍ以下でほとんど摩耗せず、鋼帯の表面は平滑、美
麗で高品質なものが維持できた。なお、同条件で前記従
来の鋼帯支持ロールを用いたところ、鋼帯支持ロールの
摩耗量は１ヶ月で１．０ｍｍと著しく、肌荒れが大きい
ロール表面の影響を受けて鋼帯の表面が肌荒れて品質を
損なった。When the steel strip supporting roll of the present invention was applied to a steel strip (SUS300 stainless steel, plate thickness 2 mm, plate width 1300 m) in a continuous hot-dip coating equipment line, the steel strip was used even after three months of use. The amount of abrasion of the support roll is 0.
When the thickness was 1 mm or less, the steel strip hardly abraded, and the surface of the steel strip was smooth, beautiful and high quality could be maintained. In addition, when the conventional steel strip supporting roll was used under the same conditions, the wear amount of the steel strip supporting roll was remarkably 1.0 mm in one month, and the surface of the steel strip was roughened due to the influence of the roll surface having large surface roughness. Quality was lost.
【００１５】[0015]
【発明の効果】本発明の鋼帯支持ロールは耐摩耗性に優
れ長寿命であり、ロール表面は耐肌荒れ性に優れるので
鋼帯の表面も影響を受けず高品質な鋼帯が安定して生産
できる。The steel strip supporting roll of the present invention is excellent in wear resistance and has a long service life, and the surface of the roll is excellent in rough surface resistance, so that the surface of the steel strip is not affected and a high quality steel strip can be stably formed. Can produce.
【図１】本発明の鋼帯支持ロールを示す図である。FIG. 1 is a view showing a steel strip supporting roll of the present invention.
【図２】従来の鋼帯支持ロールを示す図である。FIG. 2 is a view showing a conventional steel strip support roll.
【図３】溶融亜鉛めっき設備を示す図である。FIG. 3 is a diagram showing a hot-dip galvanizing facility.
７ 鋼帯支持ロール、 １２ ロール胴部、 １３ ス
リーブ、 １４ 軸部7 Steel strip support roll, 12 Roll body, 13 Sleeve, 14 Shaft
Claims (5)
続塗装設備、連続焼鈍設備などで鋼帯ループを支持する
ために設置される鋼帯支持ロールにおいて、少なくとも
鋼帯と接触する部分がセラミックスまたは超硬合金から
なる中空円筒状のロール胴部と、前記ロール胴部に嵌入
固定した中空円筒状のスリーブと、前記スリーブの両端
部に嵌入固定した軸部を有することを特徴とする鋼帯支
持ロール。1. A steel strip supporting roll installed for supporting a steel strip loop in a continuous hot-dip plating facility, a continuous pickling facility, a continuous coating facility, a continuous annealing facility, etc., wherein at least a portion in contact with the steel strip is made of ceramics. Or a steel strip having a hollow cylindrical roll body made of cemented carbide, a hollow cylindrical sleeve fitted and fixed to the roll body, and shafts fitted and fixed to both ends of the sleeve. Support roll.
イ素系、アルミナ系、およびジルコニア系セラミックス
焼結体のいずれかからなることを特徴とする請求項１に
記載の鋼帯支持ロール。2. The steel strip supporting roll according to claim 1, wherein the roll body is made of any of silicon nitride, silicon carbide, alumina, and zirconia ceramic sintered bodies.
Ｃｏ−Ｎｉ系、およびＷＣ−Ｃｏ−Ｎｉ−Ｆｅ系超硬合
金のいずれかからなることを特徴とする請求項１に記載
の鋼帯支持ロール。3. The roll body is made of WC-Co, WC-
The steel strip support roll according to claim 1, wherein the roll is made of one of a Co-Ni-based and a WC-Co-Ni-Fe-based cemented carbide.
なることを特徴とする請求項１〜３に記載の鋼帯支持ロ
ール。4. The steel strip supporting roll according to claim 1, wherein the sleeve is made of a low thermal expansion metal material.
の平均熱膨張係数が１〜５×１０-6／℃の特性を有する
ことを特徴とする請求項１〜４に記載の鋼帯支持ロー
ル。5. The steel strip supporting roll according to claim 1, wherein the sleeve has a characteristic of an average coefficient of thermal expansion from 20 ° C. to 300 ° C. of 1 to 5 × 10 −6 / ° C. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11128034A JP2000317514A (en) | 1999-05-10 | 1999-05-10 | Steel strip supporting roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11128034A JP2000317514A (en) | 1999-05-10 | 1999-05-10 | Steel strip supporting roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000317514A true JP2000317514A (en) | 2000-11-21 |
Family
ID=14974893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11128034A Pending JP2000317514A (en) | 1999-05-10 | 1999-05-10 | Steel strip supporting roll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000317514A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008105085A (en) * | 2006-10-27 | 2008-05-08 | Kyocera Corp | Roller for conveying |
| JP2008221221A (en) * | 2007-03-08 | 2008-09-25 | Hitachi Metals Ltd | Ceramic roll |
| JP2009082926A (en) * | 2007-09-27 | 2009-04-23 | Kyocera Corp | Conveyor roller |
| CN102000822A (en) * | 2010-10-14 | 2011-04-06 | 浙江恒成硬质合金有限公司 | Method for manufacturing large-diameter hard alloy rollers |
-
1999
- 1999-05-10 JP JP11128034A patent/JP2000317514A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008105085A (en) * | 2006-10-27 | 2008-05-08 | Kyocera Corp | Roller for conveying |
| JP2008221221A (en) * | 2007-03-08 | 2008-09-25 | Hitachi Metals Ltd | Ceramic roll |
| JP2009082926A (en) * | 2007-09-27 | 2009-04-23 | Kyocera Corp | Conveyor roller |
| CN102000822A (en) * | 2010-10-14 | 2011-04-06 | 浙江恒成硬质合金有限公司 | Method for manufacturing large-diameter hard alloy rollers |
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