JPH0488128A - Strip cooler - Google Patents
Strip coolerInfo
- Publication number
- JPH0488128A JPH0488128A JP2202725A JP20272590A JPH0488128A JP H0488128 A JPH0488128 A JP H0488128A JP 2202725 A JP2202725 A JP 2202725A JP 20272590 A JP20272590 A JP 20272590A JP H0488128 A JPH0488128 A JP H0488128A
- Authority
- JP
- Japan
- Prior art keywords
- strip
- cooling
- gas
- rolls
- cooler
- 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
- 238000001816 cooling Methods 0.000 claims abstract description 51
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 41
- 238000010586 diagram Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000000112 cooling gas Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
- C21D9/5735—Details
- C21D9/5737—Rolls; Drums; Roll arrangements
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明はストリップの幅方向に温度ムラを生じさせない
ストリップ冷却装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a strip cooling device that does not cause temperature unevenness in the width direction of the strip.
［従来の技術］
ストリップを垂直方向に複数配置した冷却ロールに巻き
付けて冷却を行なうストリップ冷却装置においては、第
５図に示すように１次冷却帯（ガスジェット冷却帯）で
１次冷却されたストリップ次々と巻き掛け、ストリップ
２１が冷却ロール２２に接触する部分２２ａでストリッ
プを冷却するようにしている。そして、冷却されたスト
リップは、デフレクタ−ロール２３により水平方向に進
行方向を変更され、ストリップ冷却装置に後続するオー
バーエイジング帯などへと送られていく。[Prior Art] In a strip cooling device that cools a strip by winding it around a plurality of vertically arranged cooling rolls, as shown in Fig. 5, the strip is primarily cooled in a primary cooling zone (gas jet cooling zone). The strips are wound one after another so that the strips are cooled at the portion 22a where the strip 21 contacts the cooling roll 22. The cooled strip is then deflected horizontally by a deflector roll 23 and sent to an overaging zone or the like following the strip cooling device.
上述した冷却ロールを使用したストリップ冷却装置にお
いては、冷却ロールへの巻きつけによる変形、ストリッ
プの幅方向の厚みプロヒイルなどの影響により、ストリ
ップの幅方向中心部が、両端部より速く冷却され、スト
リップの幅方向の温度プロフィルは、第６図に示すよう
にストリップの両端が中心部よりも高いプロフィルとな
っている。In the strip cooling device using the cooling roll described above, the center of the width of the strip is cooled faster than both ends due to the deformation caused by winding it around the cooling roll and the thickness profile of the strip in the width direction. As shown in FIG. 6, the temperature profile in the width direction of the strip is such that both ends of the strip are higher than the center.
［発明が解決しようとする課題］
第６図に示したような温度プロフィルのストリップを、
ストリップ冷却装置に後続する張力調整機、例えばピン
チロール、プライドルロールお２１を垂直方向に複数設
けた冷却ロール２２によび、又は次工程のオーバーエイ
ジング帯を通過させると、ストリップに蛇行や絞りが発
生し、操業停止を伴うトラブルが発生するという問題点
がある。[Problem to be solved by the invention] A strip with a temperature profile as shown in FIG.
Meandering or squeezing occurs in the strip when the strip is passed through a tension adjustment machine following the strip cooling device, such as a cooling roll 22 having a plurality of pinch rolls or prydle rolls 21 arranged vertically, or when passed through an overaging zone in the next process. However, there is a problem in that troubles may occur that may require a shutdown of operations.
この発明は、従来技術の上記のような問題点を解消し、
ストリップ冷却装置に後続する設備において、ストリッ
プに温度ムラがないために蛇行や絞りが発生しない、ス
トリップ冷却装置を提供することを目的としている。This invention solves the above-mentioned problems of the prior art,
It is an object of the present invention to provide a strip cooling device in which meandering and throttling do not occur because there is no temperature unevenness in the strip in equipment subsequent to the strip cooling device.
［課題を解決するための手段］
この発明に係るストリップ冷却装置は、張力調整機、複
数の冷却ロール、幅方向の冷却量可変なガス冷却帯、張
力調゛整機の連設でなるストリップ冷却装置である。[Means for Solving the Problems] A strip cooling device according to the present invention is a strip cooling device that is composed of a tension adjustment machine, a plurality of cooling rolls, a gas cooling zone whose cooling amount can be varied in the width direction, and a tension adjustment machine. It is a device.
「作用］
ガスジェット冷却帯において、幅方向に温度ムラのある
ストリップを熱伝達率の高いガス（例えば、Ｎ２ガス）
により冷却するので、短時間のうちにストリップの幅方
向の温度ムラの程度が小さくなり、後続設備においてス
トリ・・ｌブに蛇行や絞りが発生することがない。[Effect] In the gas jet cooling zone, a strip with uneven temperature in the width direction is heated with a gas having a high heat transfer coefficient (for example, N2 gas).
Since the strip is cooled by cooling, the degree of temperature unevenness in the width direction of the strip is reduced in a short time, and meandering or constriction will not occur in the strip in subsequent equipment.
［実施例コ
本発明の１実施例のストリップ冷却装置を第１図および
第２図により説明する。第１図は、本発明の１実施例の
ストリップ冷却装置を側面から見た説明図である。垂直
方向に複数設けたストリップへの接触面積調整可能な冷
却ロール１と、複数の冷却ロール１に後続して２本のデ
フレクタ−ロール２および３を設け、この２本のデフレ
クタ−ロール２および３の間にストリップ４を両面から
挟むようにしてパスラインを維持しつつ、ガスジェット
冷却帯５を設けている。[Embodiment] A strip cooling device according to an embodiment of the present invention will be explained with reference to FIGS. 1 and 2. FIG. 1 is an explanatory side view of a strip cooling device according to an embodiment of the present invention. A plurality of cooling rolls 1 are provided in the vertical direction and the contact area to the strip can be adjusted, and two deflector rolls 2 and 3 are provided following the plurality of cooling rolls 1, and these two deflector rolls 2 and 3 are provided. A gas jet cooling zone 5 is provided while maintaining the pass line by sandwiching the strip 4 between the two sides from both sides.
第２図は、ガスジェット冷却帯５を精成する風箱６の斜
視図である。この風箱６は、幅方向に区分された複数の
ガス通路７を有しており、それぞれのガス通路７には長
手方向（区では上下方向）に複数のガス噴出孔８を設け
ている。そしてあらかじめ冷却されているガスかそれぞ
れのガス通路７に接続されたガス配管９から供給され、
前記ガス噴出孔８からストリップ４の表面に向けて噴出
され、ストリップ４が冷却される。FIG. 2 is a perspective view of the wind box 6 that refines the gas jet cooling zone 5. This wind box 6 has a plurality of gas passages 7 divided in the width direction, and each gas passage 7 is provided with a plurality of gas ejection holes 8 in the longitudinal direction (in the vertical direction in the section). Then, pre-cooled gas is supplied from gas pipes 9 connected to each gas passage 7,
The gas is ejected from the gas ejection holes 8 toward the surface of the strip 4, thereby cooling the strip 4.
それぞれのガス通路７に供給されるガスの供給量は、そ
れぞれのガス通路７に対応するストリップ４の表面温度
をオーバーエイジング帯の入口（第１図てはデフレクタ
−ロール３の後方）に配置した温度計１１で測定し、こ
れによって得られる温度プロフィルが一定のプロフィル
（ストリップの幅方向中心部と両端部の温度差が一定値
以下となるよう）に、また温度レベルがオーバーエイジ
ング処理に適した温度（３５０〜４００℃）になるよう
、それぞれのガス通路７に接続されているガス配管９の
バルブ１０を開閉することにより、調整される。 第３
図は、冷却用ガスとしてＮ２ガスとＮ２ガスの混合ガス
を、通常の空気用のブロアーでガスジェット帯に送って
、ストリップを冷却する場合のＮ２ガス含有量（容積％
）と単位時間当たりの熱伝達量との関係を示すグラフで
ある１本来ならば、Ｎ２ガス１００％のときが一番単位
時間当たりの熱伝達量は大きいはずであるが、そうなら
ないのは空気用のブロアーを使用しているので、Ｎ２ガ
スの比率が高まるにつれてガスの密度が低下して吐出圧
力が上昇せず、したがって単位時間当たりの吐出量も少
なくなるからである。したがって、通常の空気用ブロア
ーを使用して冷却用ガスをガスジェット帯に供給する場
合には、第３図から明らかなように、Ｎ２ガス７０％、
Ｎ２ガス３０％の混合ガスを供給するようにしたほうが
、冷却効率は最もよくなる。The amount of gas supplied to each gas passage 7 is determined by adjusting the surface temperature of the strip 4 corresponding to each gas passage 7 at the entrance of the overaging zone (behind the deflector roll 3 in FIG. 1). The temperature profile obtained by measuring with the thermometer 11 is a constant profile (the temperature difference between the center and both ends of the strip in the width direction is below a certain value), and the temperature level is suitable for over-aging treatment. The temperature is adjusted by opening and closing the valves 10 of the gas pipes 9 connected to the respective gas passages 7 so that the temperature is 350 to 400°C. Third
The figure shows the N2 gas content (volume%
) and the amount of heat transfer per unit time.1 Normally, the amount of heat transfer per unit time should be the largest when N2 gas is 100%, but this is not the case with air. This is because, since a conventional blower is used, as the ratio of N2 gas increases, the density of the gas decreases and the discharge pressure does not increase, and therefore the discharge amount per unit time also decreases. Therefore, when a normal air blower is used to supply cooling gas to the gas jet zone, as is clear from Figure 3, N2 gas is 70%
The cooling efficiency will be best if a mixed gas containing 30% N2 gas is supplied.
第４図は、別の実施例であるが、１次ガス冷却帯１２で
、急冷開始温度を調整され、゛冷却ロール１帯でのスト
リップの絞り込みを軽減するための張力を付与するプラ
イドルロール１３を経て、冷却ロール１、ガス冷却帯５
でのパスライン維持のためのデフレクタ−ロール２．３
に挟まれたガス冷却帯５、幅方向の温度計１１、張力調
整のためのプライドルロール１７でなっている。FIG. 4 shows another embodiment in which the quenching start temperature is adjusted in the primary gas cooling zone 12, and the pridle roll 13 applies tension to reduce the squeezing of the strip in the cooling roll 1 zone. , cooling roll 1, gas cooling zone 5
Deflector roll for maintaining the pass line at 2.3
It consists of a gas cooling zone 5 sandwiched between, a thermometer 11 in the width direction, and a priddle roll 17 for tension adjustment.
ガス冷却帯は、高Ｈ２ガスのため爆発の危険性を避ける
目的で、高Ｈ２ガスの冷却器１４．ファン１５は炉内へ
設置し、ファンサクション側の負圧による炉外の空気吸
い込みを避けている。The gas cooling zone is equipped with a high H2 gas cooler 14. to avoid the risk of explosion due to the high H2 gas. The fan 15 is installed inside the furnace to avoid sucking air from outside the furnace due to negative pressure on the fan suction side.
高Ｈ２ガスジェット冷却帯５は、前後にスロト部を設け
て、地帯域とのガスの混合によるガス濃度の低減を防止
している。The high H2 gas jet cooling zone 5 is provided with slot portions at the front and rear to prevent a reduction in gas concentration due to mixing of gas with the ground zone.
ファン１５とガスジェットノズルに至るダクト内にダン
パーを設けて、幅方向のガス量を調整して、幅方向温度
分布を一定にしている。A damper is provided in the duct leading to the fan 15 and the gas jet nozzle to adjust the amount of gas in the width direction to make the temperature distribution in the width direction constant.
上述したようにしてストリップを冷却する二とにより、
ストリップの幅方向の温度ムラがの程度が小さくなり、
後続設備において蛇行や絞りが発生が防止できる。and cooling the strip as described above.
The degree of temperature unevenness in the width direction of the strip is reduced,
Meandering and throttling can be prevented from occurring in subsequent equipment.
［発明の効果］
本発明により、ストリップの幅方向の温度ムラが小さく
なり、後続設備において蛇行や絞りが発生が防止できる
。[Effects of the Invention] According to the present invention, temperature unevenness in the width direction of the strip is reduced, and meandering and throttling can be prevented from occurring in subsequent equipment.
リップ冷却装置を側面から見た説明図、第５図は従来の
ストリップ冷却装置を側面から見た説明図、第６図は従
来のストリップの幅方向の温度プロフィルを示すグラフ
図である。FIG. 5 is an explanatory diagram of a lip cooling device viewed from the side, FIG. 5 is an explanatory diagram of a conventional strip cooling device viewed from the side, and FIG. 6 is a graph diagram showing a temperature profile in the width direction of a conventional strip.
１・・冷却ロール、２．３−・テフレクターロール、５
ガスジェット冷却帯、６・・風箱、７ カス通路、８
ガス噴出孔、１３・・プライドルロル、１７ ・プラ
イドルロール。1. Cooling roll, 2.3- Teflector roll, 5
Gas jet cooling zone, 6... Wind box, 7 Waste passage, 8
Gas vent, 13... Prydleroll, 17 - Prydleroll.
Claims (1)
ガス冷却帯、張力調整機の連設でなることを特徴とする
ストリップ冷却装置。A strip cooling device characterized by a tension adjustment machine, a plurality of cooling rolls, a gas cooling zone that can vary the amount of cooling in the width direction, and a series of tension adjustment machines.
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2202725A JP2592175B2 (en) | 1990-07-31 | 1990-07-31 | Strip cooling device |
| US07/734,131 US5182074A (en) | 1990-07-31 | 1991-07-22 | Apparatus for continuously cooling metal strip |
| ZA915774A ZA915774B (en) | 1990-07-31 | 1991-07-23 | Apparatus for continuously cooling metal strip |
| CA002047793A CA2047793C (en) | 1990-07-31 | 1991-07-24 | Apparatus for continuously cooling metal strip |
| ES91913119T ES2096656T3 (en) | 1990-07-31 | 1991-07-26 | SYSTEM FOR CONTINUOUS COOLING OF A METAL BELT. |
| AT91913119T ATE145012T1 (en) | 1990-07-31 | 1991-07-26 | SYSTEM FOR CONTINUOUS COOLING OF METAL STRIPS |
| DE69123038T DE69123038T2 (en) | 1990-07-31 | 1991-07-26 | SYSTEM FOR CONTINUOUS COOLING OF METAL STRIPS |
| BR919105852A BR9105852A (en) | 1990-07-31 | 1991-07-26 | APPLIANCE FOR CONTINUOUS COOLING OF A METAL STRIP |
| PCT/JP1991/001009 WO1992002645A1 (en) | 1990-07-31 | 1991-07-26 | System for continuously cooling metal strip |
| KR1019920700626A KR950004711B1 (en) | 1990-07-31 | 1991-07-26 | Device for continuously cooling metal strip |
| EP91913119A EP0495115B1 (en) | 1990-07-31 | 1991-07-26 | System for continuously cooling metal strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2202725A JP2592175B2 (en) | 1990-07-31 | 1990-07-31 | Strip cooling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0488128A true JPH0488128A (en) | 1992-03-23 |
| JP2592175B2 JP2592175B2 (en) | 1997-03-19 |
Family
ID=16462130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2202725A Expired - Fee Related JP2592175B2 (en) | 1990-07-31 | 1990-07-31 | Strip cooling device |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0495115B1 (en) |
| JP (1) | JP2592175B2 (en) |
| KR (1) | KR950004711B1 (en) |
| AT (1) | ATE145012T1 (en) |
| BR (1) | BR9105852A (en) |
| DE (1) | DE69123038T2 (en) |
| ES (1) | ES2096656T3 (en) |
| WO (1) | WO1992002645A1 (en) |
| ZA (1) | ZA915774B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020051080A (en) * | 2000-12-22 | 2002-06-28 | 이구택 | A system for cooling hot steel plate |
| AU2011368315B2 (en) | 2011-05-18 | 2017-05-11 | Hydro-Quebec | Ferromagnetic metal ribbon transfer apparatus and method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6267125A (en) * | 1985-09-20 | 1987-03-26 | Kawasaki Steel Corp | Method for cooling steel strip in continuous annealing furnace |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58213833A (en) * | 1982-06-03 | 1983-12-12 | Nippon Kokan Kk <Nkk> | Continuous annealing furnace |
| JPS59136427A (en) * | 1983-01-21 | 1984-08-06 | Sumitomo Metal Ind Ltd | Method for cooling thin steel plate by rolling |
| JPS60135532A (en) * | 1983-12-22 | 1985-07-18 | Kawasaki Steel Corp | Cooler for strip |
| JPS60169524A (en) * | 1984-02-14 | 1985-09-03 | Mitsubishi Heavy Ind Ltd | Cooler for metallic strip |
| JPS61194119A (en) * | 1985-02-21 | 1986-08-28 | Nippon Steel Corp | Cooling installation train for steel strip |
| JPS62149820A (en) * | 1985-12-24 | 1987-07-03 | Kawasaki Steel Corp | Method for cooling steel strip |
-
1990
- 1990-07-31 JP JP2202725A patent/JP2592175B2/en not_active Expired - Fee Related
-
1991
- 1991-07-23 ZA ZA915774A patent/ZA915774B/en unknown
- 1991-07-26 ES ES91913119T patent/ES2096656T3/en not_active Expired - Lifetime
- 1991-07-26 WO PCT/JP1991/001009 patent/WO1992002645A1/en active IP Right Grant
- 1991-07-26 KR KR1019920700626A patent/KR950004711B1/en not_active IP Right Cessation
- 1991-07-26 EP EP91913119A patent/EP0495115B1/en not_active Expired - Lifetime
- 1991-07-26 DE DE69123038T patent/DE69123038T2/en not_active Expired - Lifetime
- 1991-07-26 AT AT91913119T patent/ATE145012T1/en not_active IP Right Cessation
- 1991-07-26 BR BR919105852A patent/BR9105852A/en not_active IP Right Cessation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6267125A (en) * | 1985-09-20 | 1987-03-26 | Kawasaki Steel Corp | Method for cooling steel strip in continuous annealing furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0495115A1 (en) | 1992-07-22 |
| KR920702428A (en) | 1992-09-04 |
| ATE145012T1 (en) | 1996-11-15 |
| ES2096656T3 (en) | 1997-03-16 |
| EP0495115A4 (en) | 1993-03-17 |
| DE69123038D1 (en) | 1996-12-12 |
| DE69123038T2 (en) | 1997-04-10 |
| KR950004711B1 (en) | 1995-05-04 |
| BR9105852A (en) | 1992-09-29 |
| WO1992002645A1 (en) | 1992-02-20 |
| JP2592175B2 (en) | 1997-03-19 |
| ZA915774B (en) | 1992-04-29 |
| EP0495115B1 (en) | 1996-11-06 |
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