JPH03125936A - Apparatus of detecting temperature distribution in strip - Google Patents
Apparatus of detecting temperature distribution in stripInfo
- Publication number
- JPH03125936A JPH03125936A JP26457289A JP26457289A JPH03125936A JP H03125936 A JPH03125936 A JP H03125936A JP 26457289 A JP26457289 A JP 26457289A JP 26457289 A JP26457289 A JP 26457289A JP H03125936 A JPH03125936 A JP H03125936A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- temperature
- thermocouple
- strip
- hollow
- 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
- 238000009826 distribution Methods 0.000 title claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 15
- 239000004020 conductor Substances 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 7
- 239000012811 non-conductive material Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 31
- 238000005096 rolling process Methods 0.000 abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 16
- 229910052742 iron Inorganic materials 0.000 abstract description 8
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract description 7
- 229910001179 chromel Inorganic materials 0.000 abstract description 7
- 229910052750 molybdenum Inorganic materials 0.000 abstract description 7
- 239000011733 molybdenum Substances 0.000 abstract description 7
- 229910000809 Alumel Inorganic materials 0.000 abstract description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 3
- 239000011491 glass wool Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001006 Constantan Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000005678 Seebeck effect Effects 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 210000004124 hock Anatomy 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/02—Skids or tracks for heavy objects
- F27D3/026—Skids or tracks for heavy objects transport or conveyor rolls for furnaces; roller rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/0014—Devices for monitoring temperature
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は、温度が900℃以下の材料を圧延する際の金
属ストリップの温度分布を、簡単で精度良く測定するだ
めの測定装置に関するものであり、特に、ストリップの
表面にスケールやテンパーカラーの少ない鉄やステンレ
ス等の材料を、常温から約500℃の温度で圧延する場
合の、材料の連続的な温度分布検出装置に関するもので
ある。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a measuring device for simply and accurately measuring the temperature distribution of a metal strip when rolling a material whose temperature is 900°C or less. In particular, it relates to a continuous temperature distribution detection device for a material when rolling a material such as iron or stainless steel with little scale or temper color on the surface of the strip at temperatures ranging from room temperature to about 500°C.
(従来の技術)
従来、ストリップの温度を測定する方法については、多
くの提案がなされている。たとえば、「板圧延の理論と
実際P、274J (日本鉄鋼協会発行)にも示され
ているように、測定物体の表面から放出される放射熱量
を測定する放射温度計や、2種類の金属線を接続した閉
ループで発生するゼーベック効果による熱起電力を利用
する熱電対を用いた接触式温度計等がある。(Prior Art) Conventionally, many proposals have been made regarding methods of measuring the temperature of a strip. For example, as shown in "Theory and Practice of Sheet Rolling P, 274J (published by the Iron and Steel Institute of Japan), there is a radiation thermometer that measures the amount of radiant heat emitted from the surface of the object to be measured, and two types of metal wires. There are contact thermometers that use thermocouples that utilize thermoelectromotive force due to the Seebeck effect generated in a closed loop connected to
(発明が解決しようとする課題)
放射温度計は、熱間圧延でストリップの温度(温度60
0℃以上)を測定するのに使用されている。熱間圧延で
は放射率が比較的安定しているので、精度良くストリッ
プの温度を検出することができる。しかし、ヒユーム等
の影響を受は易い、メンテナンス性が悪い、価格が比較
的高価である等の欠点がある。また、この放射温度計は
、スケールのない板温度300℃程度のストリップ温度
を検出する場合に関しては、ストリップ表面のテンパー
カラー、表面粗度(表面光沢)等の影響を受は易いため
に、放射率の設定が困難でありストリップの温度の測定
ができない。(Problem to be solved by the invention) A radiation thermometer is used to measure the temperature of a strip during hot rolling (temperature 60
0°C or higher). Since the emissivity is relatively stable during hot rolling, the temperature of the strip can be detected with high accuracy. However, it has drawbacks such as being susceptible to dust, poor maintainability, and being relatively expensive. In addition, when detecting a strip temperature of about 300°C, which is a plate temperature without a scale, this radiation thermometer is easily affected by the temper color, surface roughness (surface gloss), etc. of the strip surface. It is difficult to set the rate and it is not possible to measure the temperature of the strip.
接触式温度計は、常温から約800”C程度までのスト
リップの材料の温度を、非連続的に測定するのに使用さ
れており、しかも、放射率に影響されないので、低温領
域でも精度の良い温度検出ができる。しかし、材料の温
度を連続的に測定する場合、ストリップ表面と接触部の
間のスリップによる摩擦発熱の影響を受けたり、ストリ
ップに疵をつけたりする。また、ストリップの長平方向
に形状の変化がある場合にセンサーを保護するために、
ストリップとセンサー間のギャップを制御する必要があ
る。さらに、センサ一部にクーラント用水等が溜らない
よう水切り等の対策が必要である。Contact thermometers are used to discontinuously measure the temperature of strip materials from room temperature to approximately 800"C, and are not affected by emissivity, so they have good accuracy even in low temperature ranges. Temperature can be detected.However, when continuously measuring the temperature of a material, it is affected by frictional heat generation due to slip between the strip surface and the contact part, and the strip may be damaged. To protect the sensor if there is a change in shape,
The gap between the strip and the sensor needs to be controlled. Furthermore, it is necessary to take measures such as drainage to prevent coolant water from accumulating in a part of the sensor.
発明者らは、これらの問題を解決するために、ストリッ
プの温度検出装置を既に提示した。これは、走行中の金
属ストリップの温度を連続的に測定する装置であって、
中空ロールの半径方向にロール表面へ通じる小穴を有せ
しめるとともに、前記中空ロールの半径方向に、ロール
表面へ通じる小穴を通して熱雷対を形成する2種類の金
属線を導き、非導電性材料中に2種類の金属線の外周の
一部が露出する如く埋設し中空ロールの周方向に巻回せ
しめ、該周方向に巻回せしめられた2種類の金属線が、
測定対象である金属ストリップに接触して測温点を形成
せしめるよう構成したことを特徴とするストリップの温
度検出装置である。The inventors have already presented a strip temperature sensing device to solve these problems. This is a device that continuously measures the temperature of a running metal strip,
The hollow roll has small holes leading to the roll surface in the radial direction, and two types of metal wires forming a thermal lightning pair are guided through the small holes leading to the roll surface in the radial direction of the hollow roll, and are inserted into the non-conductive material. Two types of metal wires are buried so that a part of their outer circumferences are exposed and wound in the circumferential direction of a hollow roll, and the two types of metal wires wound in the circumferential direction are
This is a strip temperature detection device characterized in that it is configured to form a temperature measurement point by contacting a metal strip to be measured.
この温度検出装置は、測定条件の艮好な場合には問題は
ないが、測定条件が悪い場合、例えば、測定対象である
金属ストリップの形状がかなり悪い場合には、測温ロー
ルとストリップとが接触しない状態が発生し、測定不能
になったり、ノイズが発生し易かったりする。また、ス
トリップの水切りが十分で無い場合にもやはりノイズが
発生する等の問題があった。There is no problem with this temperature detection device when the measurement conditions are good, but when the measurement conditions are bad, for example, when the shape of the metal strip to be measured is quite bad, the temperature measurement roll and the strip may A state of no contact may occur, making measurement impossible or causing noise. Furthermore, there are also problems such as noise generation when the strip is not drained sufficiently.
本発明は、温度が約900℃以下の材料を圧延する際の
ストリップの温度分布を、簡単で精度良(測定するため
の測定装置に関するものであり、特に、ストリップの表
面にスケールやテンパーカラーの少ない鉄やステンレス
等の材料を、常温から約500℃までの温度で圧延をす
る場合のストリップの温度分布を、連続的に検出するの
に適した装置を提供しようとするものである。The present invention relates to a measuring device for easily and accurately measuring the temperature distribution of a strip when rolling a material with a temperature of about 900°C or less. The present invention aims to provide an apparatus suitable for continuously detecting the temperature distribution of a strip when a small amount of material such as iron or stainless steel is rolled at a temperature from room temperature to about 500°C.
(課題を解決するための手段)
本発明の温度分布検出装置は、中空ロールの半径方向に
ロール表面まで通じる小穴を2個以上設ける。該中空ロ
ールの外周に、非電導材を被覆あるいは溶射して、ロー
ル表面の電導性を無くさせる。熱電対を該中空ロールの
中空および小穴を通してロールの外周に接触させずに平
行に巻き付ける。さらに、該中空ロールの外周に電導材
を被覆あるいは溶射する。尚、例えば検出した起電力を
記録計に送るスリップリングを有している。(Means for Solving the Problems) In the temperature distribution detection device of the present invention, two or more small holes are provided in the radial direction of a hollow roll that communicate with the roll surface. The outer periphery of the hollow roll is coated or sprayed with a non-conductive material to eliminate electrical conductivity on the roll surface. A thermocouple is wound through the hollow and small holes of the hollow roll in parallel to the outer periphery of the roll without contacting it. Furthermore, the outer periphery of the hollow roll is coated or sprayed with a conductive material. In addition, for example, it has a slip ring that sends the detected electromotive force to a recorder.
上記中空ロールは、鉄やステンレス鋼等の金属材料が用
いられ、熱電対は、クロメル・アルメル、クロメル・コ
ンスタンタン等が用いられ、非電導材としては、アルミ
ナ、ジルコニア等のセラミック材が用いられ、電導材と
しては、モリブデン、鉄、銅、アルミ等が用いられる。The hollow roll is made of a metal material such as iron or stainless steel, the thermocouple is made of chromel/alumel, chromel/constantan, etc., and the non-conductive material is made of a ceramic material such as alumina or zirconia. Molybdenum, iron, copper, aluminum, etc. are used as the conductive material.
また、スリップリングの代りにFM回転テレメトリ−シ
ステムを用いても良い。Also, an FM rotational telemetry system may be used in place of the slip ring.
(作 用)
本発明は、ストリップの温度が900’C以下の材料を
圧延する際の材料温度分布を、簡単で精度良く測定する
ことが可能であり、特にストリップの表面にスケールや
テンパーカラーの少ない鉄やステンレス等の材料を、常
温から約500”Cまでの温度で圧延をする場合のスト
リップの連続的な温度分布検出が可能である。(Function) The present invention makes it possible to easily and accurately measure the material temperature distribution when rolling a material whose strip temperature is 900'C or less, and in particular, it is possible to easily and accurately measure the material temperature distribution when rolling a material whose strip temperature is 900'C or less. It is possible to continuously detect the temperature distribution of a strip when rolling a small amount of material such as iron or stainless steel at temperatures from room temperature to about 500''C.
(実 施 例) 第1図は測温ロールの一例を示す概略図である。(Example) FIG. 1 is a schematic diagram showing an example of a temperature measuring roll.
図面に示すように、中空ロール1は、外径lo。As shown in the drawings, the hollow roll 1 has an outer diameter lo.
鰭、内径80關、胴長400mmノS U S 304
(7) ハイプを素材として作成した。この中空ロール
の胴長方向に、45+n間隔で7個の小穴H(径4mm
)を開けた後、2關の間隔を開けて円周方向に深さ0.
25m+zの溝を旋盤でつけた。この際、外周に接する
小穴Hには円周方向に角度45度、深さ0.5關のテー
パーを付与した。その後、この中空ロールの外周にLP
PSを用いて、アルミナ2を厚さ約0.1mmはど溶射
し、ロール外周の電導性をなくさせた。Fin, inner diameter 80 mm, body length 400 mm S U S 304
(7) Created using hype as a material. Seven small holes H (diameter 4mm
), then open a space of 2 degrees to a depth of 0.0 mm in the circumferential direction.
A 25m+z groove was made using a lathe. At this time, the small hole H in contact with the outer periphery was tapered at an angle of 45 degrees and a depth of 0.5 degrees in the circumferential direction. After that, LP is applied to the outer periphery of this hollow roll.
Using PS, alumina 2 was thermally sprayed to a thickness of about 0.1 mm to eliminate electrical conductivity on the outer periphery of the roll.
さらに、線径φ0.32mmのクロメル3・アルメル4
の熱電対を、ロールの中空部および小穴を通じて中空ロ
ールの外周に前述の溝に沿わせて巻き付け、先端を溶接
した後、たるみがないように熱電対を引張込んだ。この
際、むき出しになっているアルメルおよびクロメルがお
互いに接触しないよう、また、溶射のない部分での中空
ロールの素材と接触しないようにガラスウール5を用い
て絶縁をした。Furthermore, chromel 3 and alumel 4 with wire diameter φ0.32mm
The thermocouple was wound around the outer periphery of the hollow roll along the aforementioned groove through the hollow part and small hole of the roll, and after welding the tip, the thermocouple was pulled so that there was no slack. At this time, glass wool 5 was used to insulate the exposed alumel and chromel so that they did not come into contact with each other or with the material of the hollow roll in the areas that were not thermally sprayed.
再びLPPSを用いてロール外周をモリブデン6で0,
21■はど溶射した後、熱電対が表面に出てくるまで研
磨を行い、中空ロールの胴長方向の凹凸をなくした。Using LPPS again, the outer periphery of the roll was coated with molybdenum 6.
21. After flame spraying, polishing was performed until the thermocouple appeared on the surface to eliminate unevenness in the length direction of the hollow roll.
ここで、非導電性の材料をアルミナにした理由は、材料
が安価なためであり、導電性の材料をモリブデンとした
のは、モリブデンが耐摩耗性に優れる物質だからである
。また、モリブデンの厚みは、費用と、検出温度の絶対
値誤差と、応答性と、研磨性を考慮すると、0.1〜0
.5鰭程度が妥当である。Here, the reason why alumina is used as the non-conductive material is because the material is inexpensive, and the reason why molybdenum is used as the conductive material is because molybdenum is a substance with excellent wear resistance. In addition, the thickness of molybdenum is 0.1 to 0, considering cost, absolute value error of detected temperature, responsiveness, and polishability.
.. Approximately 5 fins is appropriate.
また、中空ロールの表面は、ロールとストリップとの間
でスリップが生じないようショツトブラストを行い、表
面粗度を1μsRa程度に仕上げた。Further, the surface of the hollow roll was shot blasted to prevent slippage between the roll and the strip, and the surface roughness was finished to about 1 μsRa.
熱電対の出力に関してはスリップリング7を用いて取り
出し、標準器を備えた記録計8に送った。The output of the thermocouple was taken out using a slip ring 7 and sent to a recorder 8 equipped with a standard device.
尚、図示してはいないが、本発明では中空ロールの外周
温度は、測定対象であるストリップの温度よりも低くな
るように内部冷却を行う必要があり、今回の実施例では
水を用いて中空ロールの内部冷却を行った。また、図示
してはいないが、中空ロールを支持するベアリング部は
、熱による焼付き(シリコングリースの洩れによる)を
防止するために内部冷却を行った。Although not shown in the drawings, in the present invention, it is necessary to perform internal cooling so that the outer peripheral temperature of the hollow roll is lower than the temperature of the strip to be measured. Internal cooling of the roll was performed. Further, although not shown, the bearing portion that supports the hollow roll was internally cooled to prevent seizure due to heat (due to leakage of silicone grease).
第2図は、本発明の実施の一例を示す概略図である。図
面に示すように、実験に用いた材料9は、板厚1.2諺
扉、板幅350關の普通鋼焼鈍コイルである。このコイ
ルは、圧延機入側にある高周波加熱装置lOの8個の加
熱コイル(図示しない)によって、板温度500℃まで
加熱される(入側板速度2m/sinの場合)。また、
材料の板幅方向の温度分布は、8個ある各加熱コイルの
コア位置を調整することによって、最大100℃程度つ
けることができる。今回の実験では、圧延機入側の板中
央温度が350℃、板端の温度が250℃になるように
、高周波加熱装置の各加熱コイルのコア位置を調整した
。FIG. 2 is a schematic diagram showing an example of implementation of the present invention. As shown in the drawing, the material 9 used in the experiment was a plain steel annealed coil with a plate thickness of 1.2 mm and a plate width of 350 mm. This coil is heated to a plate temperature of 500° C. by eight heating coils (not shown) of a high-frequency heating device IO located on the inlet side of the rolling mill (in the case of an inlet plate speed of 2 m/sin). Also,
The temperature distribution in the width direction of the material can be adjusted to a maximum of about 100° C. by adjusting the core position of each of the eight heating coils. In this experiment, the core position of each heating coil of the high-frequency heating device was adjusted so that the temperature at the center of the plate on the entry side of the rolling mill was 350°C and the temperature at the edge of the plate was 250°C.
圧延機のロールバイト出口から約80cI11離れた箇
所(圧延機のロールバイト出口から約120cm離れた
箇所にデフレクタ−ロール11がありその間)でパスラ
インから1.5關上側に測温ロール12を設置した。Temperature measuring roll 12 is installed 1.5 steps above the pass line at a location approximately 80 cI11 away from the roll bite exit of the rolling mill (there is a deflector roll 11 at a location approximately 120 cm away from the roll bite exit of the rolling mill). did.
使用した圧延機は、ワークロール13径φ lB5mm
。The rolling mill used was a work roll with a diameter of 13 mm and a diameter of 1B5 mm.
.
バックアツプロール14径φ480IIIm1胴長が4
00器の4段圧延機である。圧延速度は2 m−win
−’圧下率は5〜30%、前方張力は10kgf−關−
2、後方張力は5 kg f * +am−”、圧延潤
滑は無潤滑で圧延をした。Backup roll 14 diameter φ480IIIm1 body length 4
This is a 4-high rolling mill with a size of 0.00. Rolling speed is 2 m-win
-'Reduction rate is 5-30%, forward tension is 10kgf--
2. The rear tension was 5 kgf*+am-'', and rolling was performed without lubrication.
測温ロール上の材料温度は圧延条件によって多少異なる
けれども、接触式の温度計15で測定した結果、板中央
で270〜290℃、板端で180〜200℃であった
。また、ワークロールベンダーをO〜7 ton/ C
HOCK操作して圧延機出側の板形状を中伸びから端伸
びまで変化させ、測温ロールの温度精度に及ぼす板形状
の影響を調査した。Although the temperature of the material on the temperature measuring roll differs somewhat depending on rolling conditions, as a result of measurement with a contact type thermometer 15, it was 270 to 290°C at the center of the plate and 180 to 200°C at the edge of the plate. In addition, the work roll bender is O~7 ton/C.
The influence of the plate shape on the temperature accuracy of the temperature measuring roll was investigated by changing the shape of the plate on the exit side of the rolling mill from medium elongation to end elongation using HOCK operation.
第3図に接触式温度計で測定した材料の温度と、測温ロ
ールから求めた材料の温度との比較を示す。FIG. 3 shows a comparison between the temperature of the material measured with a contact thermometer and the temperature of the material determined from the temperature measuring roll.
絶対温度に関しては、ストリップの温度が高温になるに
つれて検出温度の差が大きくなる。従って、本発明で絶
対温度を正確に計ろうとすれば、第3図に示したような
較正曲線を予め作成すれば良い。Regarding absolute temperature, the difference in detected temperatures increases as the temperature of the strip increases. Therefore, in order to accurately measure absolute temperature using the present invention, a calibration curve as shown in FIG. 3 may be created in advance.
第4図は接触式温度計から求めたストリップの板幅方向
の温度差と、本発明の温度分布検出装置(測温ロール)
から求めたストリップの板幅方向の温度差の比較を示す
。第4図から、本発明はストリップの温度分布(温度偏
差)を±5℃内の検出精度があることがわかる。Figure 4 shows the temperature difference in the strip width direction determined from a contact thermometer and the temperature distribution detection device of the present invention (temperature measuring roll).
A comparison of the temperature differences in the width direction of the strips determined from From FIG. 4, it can be seen that the present invention has an accuracy of detecting the temperature distribution (temperature deviation) of the strip within ±5°C.
また記録計の出力にはノイズは発生していないことが確
認された。但し、板形状の不良により、断続的に材料と
測温ロールとが接触した箇所の温度に関しては、板形状
が急峻度で2.0%以上になるとデータの信頼性は得ら
れなくなることが分かった。このような場合の対策とし
ては、測温ロールの高さを大きく取りストリップと測温
ロールとが接触する領域を増大させる方法、前方張力を
増大する方法、測温ロールの上にストリップを押さえる
ための押さえロールを設置する方法をとれば良い。It was also confirmed that no noise was generated in the output of the recorder. However, with regard to the temperature at locations where the material and the temperature measuring roll are intermittently in contact due to defects in the plate shape, it has been found that if the plate shape has a steepness of 2.0% or more, reliable data cannot be obtained. Ta. Countermeasures for such cases include increasing the height of the temperature-measuring roll to increase the contact area between the strip and the temperature-measuring roll, increasing the front tension, and pressing the strip onto the temperature-measuring roll. It is best to install a presser roll.
(発明の効果)
以上のように、本発明装置は、温度が900℃以下の材
料を圧延する際のストリップの温度分布を簡単で精度良
< 61定することができ、特にストリップの表面にス
ケールやテンパーカラーの少ない鉄やステンレス等の材
料を常温から約500℃の温度で圧延をする場合の材料
の連続的な温度分布検出に優れている。(Effects of the Invention) As described above, the device of the present invention can easily and accurately determine the temperature distribution of a strip when rolling a material with a temperature of 900°C or less, and especially the scale It is excellent for continuous temperature distribution detection of materials when rolling materials such as iron and stainless steel with little temper color at temperatures ranging from room temperature to approximately 500°C.
第1図の(a)は測温ロールの一例を示す概略図、(b
)はその一部所面を拡大した説明図であり、第2図は本
発明の実施の一例を示す概略図であり、第3図は接触式
温度計で測定した材料の温度と測温ロールから求めた材
料の温度との比較を示す図であり、第4図は接触式温度
計で測定した材料の板幅方向の温度分布温度と測温ロー
ルから求めた材料板幅方向の温度分布との比較を示す図
である。
1:中空ロール 2:アルミナ3:クロメル
4:アルメル5ニガラスウール 6:
モリブデン7:スリップリング 8:記録計
9:材 料 10:高周波加熱装置11:
デフレクタ−ロール 12:測温ロール13:ワークロ
ール
I4:バックアップロール
15:接触式温度計
H:小穴
第1図
(α)
(1:1)
復代理人Figure 1 (a) is a schematic diagram showing an example of a temperature measuring roll, (b)
) is a partially enlarged explanatory diagram, FIG. 2 is a schematic diagram showing an example of implementation of the present invention, and FIG. 3 is a diagram showing the temperature of the material measured with a contact thermometer and the temperature measuring roll. Figure 4 shows a comparison between the temperature distribution of the material in the width direction of the material measured by a contact thermometer and the temperature distribution in the width direction of the material determined from the temperature measuring roll. FIG. 1: Hollow roll 2: Alumina 3: Chromel
4: Alumel 5 Niglass wool 6:
Molybdenum 7: Slip ring 8: Recorder 9: Material 10: High frequency heating device 11:
Deflector roll 12: Temperature measuring roll 13: Work roll I4: Backup roll 15: Contact thermometer H: Small hole Figure 1 (α) (1:1) Sub-agent
Claims (1)
装置であって、中空ロールの半径方向に、ロール表面へ
通じる小穴を2つ以上設けるとともに、前記中空ロール
の外周面を非導電性材料で被覆し、前記中空ロールの半
径方向に、ロール表面へ通じる小穴を通して熱電対を形
成する2種類の金属線を導き、非導電性材料中に2種類
の金属線の外周の一部が露出する如く埋設し中空ロール
の周方向に巻回せしめ、該周方向に巻回せしめられた2
種類の金属線をさらに導電性材料で被覆したことを特徴
とし、測定対象である金属ストリップに接触させること
により金属ストリップの温度分布を検出するストリップ
の温度分布検出装置。This device continuously measures the temperature distribution of a running metal strip, and includes two or more small holes communicating with the roll surface in the radial direction of a hollow roll, and the outer peripheral surface of the hollow roll is made of a non-conductive material. Two types of metal wires forming a thermocouple are guided in the radial direction of the hollow roll to form a thermocouple through small holes leading to the roll surface, so that a part of the outer periphery of the two types of metal wires is exposed in the non-conductive material. 2 which is wound in the circumferential direction of the buried hollow roll, and which is wound in the circumferential direction.
What is claimed is: 1. A strip temperature distribution detection device that detects the temperature distribution of a metal strip by bringing it into contact with a metal strip to be measured, the device being characterized by a metal wire of different types further coated with a conductive material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26457289A JPH03125936A (en) | 1989-10-11 | 1989-10-11 | Apparatus of detecting temperature distribution in strip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26457289A JPH03125936A (en) | 1989-10-11 | 1989-10-11 | Apparatus of detecting temperature distribution in strip |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03125936A true JPH03125936A (en) | 1991-05-29 |
Family
ID=17405155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP26457289A Pending JPH03125936A (en) | 1989-10-11 | 1989-10-11 | Apparatus of detecting temperature distribution in strip |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03125936A (en) |
-
1989
- 1989-10-11 JP JP26457289A patent/JPH03125936A/en active Pending
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