JPS5845333A - Continuous annealing equipment of strip - Google Patents
Continuous annealing equipment of stripInfo
- Publication number
- JPS5845333A JPS5845333A JP14244281A JP14244281A JPS5845333A JP S5845333 A JPS5845333 A JP S5845333A JP 14244281 A JP14244281 A JP 14244281A JP 14244281 A JP14244281 A JP 14244281A JP S5845333 A JPS5845333 A JP S5845333A
- Authority
- JP
- Japan
- Prior art keywords
- molten salt
- strip
- zone
- cooling zone
- cooling
- 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
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
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)
Abstract
Description
【発明の詳細な説明】 本発明は、ストリップの連続焼鈍設備の改良に関する。[Detailed description of the invention] The present invention relates to improvements in continuous annealing equipment for strip.
第１図は、従来のス） ＩＪツブの連続焼鈍設備の一例
を示すが、ペイオフリーリ（図示せず）などに装着され
てほどき出されたス） ＩＪツブ１は加熱炉２で例えば
８００℃程度の温度まで加熱される。Fig. 1 shows an example of a conventional continuous annealing equipment for IJ tubes, in which the IJ tube 1 is attached to a payoff reel (not shown) and unwound. It is heated to a temperature of about ℃.
この加熱装置としては、輻射加熱方式のラジアントチュ
ーブなどが用いられる（図示せず）。ついで、該ストリ
ップ１は均熱炉３に入り、ここで一定の均熱温度で所定
の時間均熱化されたのち、第１冷却帯４で焼鈍温度から
過時効温度まで所定の冷却速度で冷却されたあと、過時
効帯５で一定の過時効温度で所定の時間保持される。そ
して過時効帯５で過時効処理が終ったストリップ１は、
第２冷却帯６で１００℃程度まで冷却され、炉外へ、出
てコイラーで巻き取られる。As this heating device, a radiation heating type radiant tube or the like is used (not shown). Next, the strip 1 enters a soaking furnace 3, where it is soaked at a constant soaking temperature for a predetermined time, and then cooled in a first cooling zone 4 from an annealing temperature to an overaging temperature at a predetermined cooling rate. After that, it is held at a constant overaging temperature in an overaging zone 5 for a predetermined period of time. The strip 1 that has been overaged in the overaging zone 5 is
It is cooled to about 100° C. in the second cooling zone 6, exits the furnace, and is wound up by a coiler.
以上の操作によるス） ＩＪツブ１の温度変化の状態に
つき経過時間Ｔとストリップ温度Ｃの関係を第２図に示
す。FIG. 2 shows the relationship between the elapsed time T and the strip temperature C regarding the state of temperature change of the IJ tube 1 resulting from the above operations.
加熱炉２から第２冷却帯６までは互いに連結されており
、全体として一体の炉を形成していて、内部はス） Ｉ
Ｉツブ１の酸化を防止するために、窒素、水垢ガス等に
よる非酸化、還元雰囲気としである。The heating furnace 2 to the second cooling zone 6 are connected to each other, forming an integrated furnace as a whole, and the inside is
In order to prevent oxidation of the I-tube 1, a non-oxidizing and reducing atmosphere is created using nitrogen, limescale gas, etc.
上述のように、加熱炉２の加熱手段としては、ラジアン
トチューブ等の間接輻射加熱である。このラジアントチ
ューブを一例にとると、管内に高温の燃焼排ガスを流し
て管内壁を加熱し、この管外壁からの輻射熱でストリッ
プ１を加熱する。そしてス） ＩＪツブと間接的に熱交
換１．た燃焼排ガスは管内を流れて温水器等に導びかれ
て冷却排気される。As mentioned above, the heating means for the heating furnace 2 is indirect radiant heating such as a radiant tube. Taking this radiant tube as an example, high-temperature combustion exhaust gas is passed through the tube to heat the inner wall of the tube, and the strip 1 is heated by radiant heat from the outer wall of the tube. and s) Indirect heat exchange with IJ tube 1. The combustion exhaust gas flows through the pipe, is led to a water heater, etc., and is cooled and exhausted.
均熱炉６では、ストＩ７ツプ１を一定の温度に保持せね
ばならないためラジアントチューブ或いは電気ヒータエ
レメント等により、炉体放熱分だけ加熱して（・る。In the soaking furnace 6, since the stop I7 must be maintained at a constant temperature, it is heated by the amount of heat radiated from the furnace using a radiant tube or an electric heater element.
第１冷却帯４では、ス） ＩＪツブ１を所定の冷却速度
で冷却するためガスまたは水により冷却を行う。In the first cooling zone 4, (i) cooling is performed with gas or water in order to cool the IJ tube 1 at a predetermined cooling rate;
過時効帯５では、均熱炉３と同様にス） ＩＪツゾ１を
一定の温度に保持しなければならな（・ため、ラジアン
トチューブ或（、・は電気ヒータエレメント等により加
熱している〇
第２冷却帯６では、第１冷却帯４と同様にガスまたは水
により冷却を行っている。In the overaging zone 5, as in the soaking furnace 3, the IJ tube 1 must be maintained at a constant temperature (for this reason, it is heated by a radiant tube or an electric heater element, etc.). In the second cooling zone 6, cooling is performed using gas or water, similar to the first cooling zone 4.
上記従来の連続焼鈍設備において各炉にお（・て次の欠
点があった。Each furnace in the above-mentioned conventional continuous annealing equipment had the following drawbacks.
（１）加熱帯
ラジアントチューブで加熱する場合、スト１」ツブ１の
加熱に使われる熱量は、燃焼発熱量の５０％程度で効率
が悪く、しかも排ガス顕熱は温水器等により水に回収さ
れるため、有効利用が難しい。(1) When heating with a heating zone radiant tube, the amount of heat used to heat the tube 1 is about 50% of the combustion calorific value, which is inefficient, and the sensible heat of the exhaust gas is recovered into water by a water heater etc. Therefore, it is difficult to use it effectively.
（均 均熱帯及び過時効帯
ス） ＩＪツブの温度を一定に保持するために加熱が必
要であるが、この熱は炉体かも大気へ放散され回収が不
可能である。(Soaking zone and overaging zone) Heating is necessary to keep the temperature of the IJ tube constant, but this heat is also radiated into the atmosphere by the furnace body and cannot be recovered.
（ホ）第１冷却帯及び第２冷却帯 （ａ） 冷媒としてガスを使用する場合。(E) First cooling zone and second cooling zone (a) When using gas as a refrigerant.
ス） ＩＪツブを冷却する際の熱伝達率は高々３ Ｑ
Ｑ ｋｃａｌ ７ｍ２ｈ ℃であり、所定の冷却速度で
冷却するためには装置が大型化し、かつ多量のエネルギ
が必要となる。Q) The heat transfer coefficient when cooling the IJ tube is at most 3.
Q kcal 7 m2h °C, and in order to cool at a predetermined cooling rate, the equipment becomes large and a large amount of energy is required.
また、熱伝達率が低いため、ストリップと冷却ガスの温
度差を大きくとらねばならず。Also, because the heat transfer coefficient is low, a large temperature difference must be maintained between the strip and the cooling gas.
ス） ＩＩツブ顕熱は低（・レベルでしか回収できない
。S) II tubular sensible heat can only be recovered at low (-) level.
（ｂ）冷媒として水を使用する場合。(b) When water is used as a refrigerant.
冷却速度を制御することが難しく、しかもストリップ顕
熱を低（・エネルギレベルでしか回収できない。It is difficult to control the cooling rate, and strip sensible heat can only be recovered at low energy levels.
上記従来のスト１１ツブ連続焼鈍設備では（イ）それな
りに省エネ対策が採られているか、冷却過程におけるス
トリップの顕熱回収は殆んど行われて（・ない。In the above-mentioned conventional strip continuous annealing equipment with 11 strips, (a) energy-saving measures are taken to some extent, and sensible heat recovery from the strip is hardly performed during the cooling process.
仲）加熱、冷却能力が装ｊ青的に限界にきており、大型
化して多量゛のエネルギを使用せざるを得なくなってい
る。(Naka) Heating and cooling capacity has reached its limit in terms of design, and it is necessary to increase the size and use a large amount of energy.
（ハ）加熱、冷却が各々のセクションで独立して行われ
ており、それぞれが近接して（・るにも拘わらず、ス）
ＩＪツゾ頗熱を介して、加熱、冷却ゾーン相互のエネ
ルギの授受かない。(c) Heating and cooling are performed independently in each section, and each section is close to each other.
There is no exchange of energy between the heating and cooling zones via the IJ tube.
などの欠点があった。There were drawbacks such as.
本発明は、上記従来設備の欠点な′Ｍ消することを目的
として斗是案されたものである。The present invention has been devised for the purpose of eliminating the drawbacks of the above-mentioned conventional equipment.
以下、第６図に示す実施例により、本発明につき具体的
に説明する。同図において、１はス） ＩＩツブ、２は
従来と同様の加熱炉、３は従来と同様の均熱炉をそれぞ
れ示す（加熱炉、均熱炉には第１図と同一符号を付しで
ある）。７は均熱炉６にし１示の如く接続された第１冷
却帯で、同第１冷却帯７は溶融塩を充たされた溶融塩槽
１７と冷媒を通す伝熱管２７とで構成されている。８は
該第１冷却帯７に図示の如く連結された過時効帯で、同
過時効帯８も溶書塩槽１８と、伝熱管２８とで構成され
て（・る。９は該過冷却帯８に図示の如く接続された第
２冷却帯で、同第２冷却帯９も溶融塩槽１９と伝熱管２
９とで構成されている。１００は該第２冷却帯９の出口
に図示の如く配設された第１リンガ−ロール、１０は洗
浄槽、１０１は第２リーガーロールをそれぞれ示す。The present invention will be specifically explained below with reference to an embodiment shown in FIG. In the figure, 1 indicates a II tube, 2 indicates a heating furnace similar to the conventional one, and 3 indicates a soaking furnace similar to the conventional one (the heating furnace and soaking furnace are given the same symbols as in Fig. 1. ). 7 is a first cooling zone connected to the soaking furnace 6 as shown in 1, and the first cooling zone 7 is composed of a molten salt tank 17 filled with molten salt and a heat transfer tube 27 through which a refrigerant passes. There is. 8 is an over-aging zone connected to the first cooling zone 7 as shown in the figure, and the over-aging zone 8 is also composed of a melting salt tank 18 and a heat transfer tube 28. A second cooling zone 9 is connected to the zone 8 as shown in the figure, and the second cooling zone 9 also has a molten salt tank 19 and a heat transfer tube 2.
It consists of 9. Reference numeral 100 indicates a first ringer roll disposed at the outlet of the second cooling zone 9 as shown, 10 a cleaning tank, and 101 a second ringer roll.
本発明のス） ＩＪツブの連続・焼鈍設備の一実施例は
、上記のように構成されており、従来同様に加熱炉２、
均熱炉３で加熱、均熱されたス） ＩＪツブ１は溶融塩
で充たされた第１冷却帯７の溶融塩槽１７に入り、ここ
で冷却される。この時に放出されるストリップ顕熱は、
＠融塩、伝熱管２７を介して伝熱管２７内の冷媒（例え
ば水）′に、伝えられ。An embodiment of continuous/annealing equipment for IJ tubes of the present invention is constructed as described above, and has a heating furnace 2, a heating furnace 2,
The IJ tube 1 heated and soaked in the soaking furnace 3 enters the molten salt tank 17 of the first cooling zone 7 filled with molten salt, and is cooled there. The strip sensible heat released at this time is
The molten salt is transferred to the refrigerant (for example, water) in the heat transfer tube 27 via the heat transfer tube 27.
加熱に使われる。used for heating.
瞠いてス） ＩＩＩツブは過時効帯８に入り、その内〆
ｆＢ；に保有さ牙１．ているス） ＩＪツブ渦度に等し
く・溶融塩により一定ｌ晶度に所定時間保持される。溶
ｍｌｊ塩佃１８の内部には伝熱管２８が配されており５
炉体放熱分だけ浴融塩を加熱し、溶融塩温度を一定に保
つよう市１（御されている。また、この過時効帯８ば、
過時効を必安にともない鋼種に対しては、（谷融塩を伝
熱室２８中に冷却媒体を流して葡即することによって冷
却帯として使用することもｏＪ能である。(I'm shocked) III Tsubu enters the overage zone 8, and within that period, it is held in Fang 1. The IJ tube vorticity is maintained at a constant crystallinity for a predetermined period of time by the molten salt. A heat transfer tube 28 is arranged inside the melt mlj Shiotsukuda 18.
The temperature of the molten salt is kept constant by heating the bath molten salt by the amount of heat radiated from the furnace.
For steel types where overaging is essential, it is also possible to use molten salt as a cooling zone by flowing a cooling medium into the heat transfer chamber 28.
過時効帯８を出たストリップは第２冷却帯９に入り、嬉
１冷却帝７と同様に冷却される。第２冷却帯９を出たス
） ＩＪツブには浴融塩が付層しているため、第１リン
ガ−ロール１００で該付層溶融Ｊ詰が落され、史にスト
リップに付着して残る溶融」蔦を洗浄槽１０に入れ、溶
融塩が水に溶ける性質を利用して該残存溶融塩を水洗除
去する。The strip leaving the overaging zone 8 enters the second cooling zone 9 and is cooled in the same way as the first cooling zone 7. Since the IJ tube after exiting the second cooling zone 9 has a layer of bath molten salt, the layer of molten salt is removed by the first ringer roll 100 and remains attached to the strip. The molten ivy is placed in a washing tank 10, and the remaining molten salt is washed away using the property of molten salt being soluble in water.
洗浄槽１０を出たストリップは、第２冷却帯９を出るス
トリップ同様にその表面に付着する塩水溶液を第２リン
ガ−ロール１０１で除去し、乾燥本発明設備は、上記の
ような構成１作用を具有するものであるがら、本発明に
よれば、次のような実用的効果を挙げることができる。The strip leaving the cleaning tank 10, like the strip leaving the second cooling zone 9, removes the aqueous salt solution adhering to its surface with a second ringer roll 101, and then drying the strip. However, according to the present invention, the following practical effects can be achieved.
（１） 熱伝達率の向上をはがれる。すなわち、従来
のガス冷却による方法では、高々３ Ｑ Ｑ ｋｃａｌ
／ｍｈ’ｃであった熱伝達率が本発明では２１］ｔ］０
〜３ Ｑ Ｑ Ｑ ｋｃａｌ／ｍ２ｈ ℃と高くなる。(1) Improved heat transfer coefficient. In other words, in the conventional gas cooling method, at most 3 Q Q kcal
/mh'c, but in the present invention, the heat transfer coefficient is 21]t]0
~3 Q Q Q kcal/m2h °C.
この結果、冷却速度を従来と同様に設定するとすれば、
冷媒（溶融塩）の温度な高くすることができる。As a result, if the cooling rate is set as before,
The temperature of the refrigerant (molten salt) can be increased.
（２）高レベルのエネルギ回収が可能である。すなわち
、ス） １ツブの冷却熱を溶融塩を介して伝熱管内の冷
媒（例えば水）に伝えこれを回収することが可能である
。更に上述の熱伝達率の向上により溶融塩高度が高く設
定されているため、伝熱管内の冷媒が高エネルギレベル
まで上げられる。(2) A high level of energy recovery is possible. That is, (i) it is possible to transfer one lump of cooling heat to the refrigerant (for example, water) in the heat transfer tube via the molten salt and recover it; Furthermore, since the molten salt altitude is set high due to the above-mentioned improvement in the heat transfer coefficient, the refrigerant in the heat transfer tube can be raised to a high energy level.
（３）回収したエネルギを装置内で有効利用できる。例
えば第２冷却帯伝熱管内で給水を予熱あるいは更に蒸発
させ、これを第１冷却帯７に送り蒸；ｈ’ Ｅ＞るいは
過熱する。これを加熱帯人口近くの低パ晶ストリップの
加熱に使用することができる（方法としては第１図の冷
却、過時効帯と同様な構造を有する溶剤１塩を熱媒とし
た加熱炉を使用することができるが図示はしない）。(3) The recovered energy can be used effectively within the device. For example, the feed water is preheated or further evaporated in the second cooling zone heat transfer tube, and then sent to the first cooling zone 7 where it is steamed or superheated. This can be used to heat a low crystalline strip near the heating zone population (methods include cooling as shown in Figure 1, using a heating furnace with a solvent 1 salt as a heating medium having a structure similar to that of the overaging zone). (but not shown).
また、第１冷却帯７で得られる蒸気が過時効設定ｌ晶度
以上の温度であれば、これを過時効帯８の伝熱管２８に
導きス） ＩＩＩツブ度保持に便、用することができる
。史にこれに必要な熱量は冷却帯で回収される熱針より
も少ないケースが多（・ため余剰の回収エネルギは他用
途に有効利用できる。In addition, if the temperature of the steam obtained in the first cooling zone 7 is higher than the overaging setting l crystallinity, it can be introduced into the heat transfer tube 28 of the overaging zone 8 and used for maintaining the III solidity. can. Historically, there have been many cases in which the amount of heat required for this is less than the amount of heat recovered in the cooling zone (so the surplus recovered energy can be effectively used for other purposes.
（４）冷却速度と冷却終了温度の制御が容易である。上
記＋１１で述べたようにストＩＪツブと溶融塩の１．１
１の熱１ぺ達゛冬が旨いため溶・ぜ１１塙温度の若干の
変更により冷却速ＩＷの仙側１が容易である。しかも冷
却終了温度ある（・はス） ＩＩツブ保保温温度溶融塩
温度の設定により浩弓度を筒めることかできる。(4) It is easy to control the cooling rate and cooling end temperature. As mentioned in +11 above, 1.1 of the strike IJ tube and molten salt
Since the heat of 1 is delicious in winter, it is easy to change the cooling speed IW to 1 by slightly changing the melting temperature. What's more, there is a cooling end temperature (・has) II Tsubu Heat Retention Temperature The degree of expansion can be controlled by setting the molten salt temperature.
（５）運転１、・７１力費が減少する。すなわち、従来
の方法・装置に比ベガス循環系等補機設備が殆Ａ７どい
らず、運転ＩＪＺｈ力費が減少する。(5) Operation 1.71 Power costs will decrease. That is, compared to conventional methods and devices, almost no auxiliary equipment such as a Vegas circulation system is required, and operating power costs are reduced.
第４図に示す本発明の他の実施例は、第１冷却￥ｉ７．
過時効帯８．第２冷却帯９の溶融塩槽をそれぞれ分離し
、史に第１．第２冷却帯７．９については、各々の溶融
塩槽を内部で細分割した例を示す。本例は上記の（４）
で述べたストＩＪツブ温度を制御するための溶融塩温度
の設定が各々のセクションについて行える利点がある。Another embodiment of the invention shown in FIG.
Overaged zone8. The molten salt tanks of the second cooling zone 9 are separated from each other, and the molten salt tanks of the second cooling zone 9 are separated from each other. Regarding the second cooling zone 7.9, an example is shown in which each molten salt tank is subdivided internally. This example is (4) above.
There is an advantage that the molten salt temperature can be set for each section in order to control the strike IJ tube temperature as described above.
第５図に示す本発明の更に他の実施例は、アツキュムレ
ータ１００１を使用し、ストリップをコイル状にして一
時貯蔵する過時効帯１００８を設えたもので、これはロ
ールを使用してパスを構成し過時効所定時間でこれを通
過する第６図及び第４図に示すものよりも装置を小型化
できるメリットをもつ。Yet another embodiment of the invention, shown in FIG. 5, uses an accumulator 1001 with an overaging zone 1008 for temporarily storing the strip in a coiled form, which uses rolls to construct passes. However, it has the advantage that the device can be made smaller than those shown in FIGS. 6 and 4, which pass through the aging period for a predetermined time.
第１図は従来設備の略丞的説明図、第２図は連続焼鈍設
備によるストリップの焼鈍時間と温度との関係をボすグ
ラフ、第６図は本発明の一実舟例の概略説明図、第４図
、第５図はそれぞれ本発明の他の実施例の概略説明図で
ある。
１ニストリツプ、 ２：加熱炉、 ３：均熱炉。
７：第１冷却帯、 １７：溶融塩槽。
８：過時効帯、 １８：溶融塩槽。
９：第２冷却帯、 １９：溶融塩槽。
１０：洗浄槽。
２７、２８．２９ ：伝熱管。
１００．１０１ ：リンガーロール。
１００１：アキュムレータ。
１ｏＯｓ ：過時効帯。Fig. 1 is a schematic explanatory diagram of conventional equipment, Fig. 2 is a graph showing the relationship between strip annealing time and temperature using continuous annealing equipment, and Fig. 6 is a schematic explanatory diagram of an example of the present invention. , FIG. 4, and FIG. 5 are schematic illustrations of other embodiments of the present invention. 1 strip, 2: heating furnace, 3: soaking furnace. 7: First cooling zone, 17: Molten salt tank. 8: Overaging zone, 18: Molten salt tank. 9: Second cooling zone, 19: Molten salt tank. 10: Cleaning tank. 27, 28.29: Heat exchanger tube. 100.101: Ringer roll. 1001: Accumulator. 1oOs: Overaged zone.
Claims (1)
よりなるストリップの連続焼鈍設備において、第１冷却
帯、過時効帯及び第２冷却帯を、それぞれ溶融塩を充し
た溶融塩槽と、内部を冷媒が流通する伝熱管とで形成し
てなることを特徴とするス） ＩＪツブの連続焼鈍設備
。In a continuous strip annealing facility consisting of a heating furnace, a soaking furnace, a first cooling zone, an overaging zone, and a second cooling zone, each of the first cooling zone, overaging zone, and second cooling zone is filled with molten salt. Continuous annealing equipment for IJ tubes, characterized by comprising a molten salt tank and a heat transfer tube through which a refrigerant flows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14244281A JPS5845333A (en) | 1981-09-11 | 1981-09-11 | Continuous annealing equipment of strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14244281A JPS5845333A (en) | 1981-09-11 | 1981-09-11 | Continuous annealing equipment of strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5845333A true JPS5845333A (en) | 1983-03-16 |
| JPS6214013B2 JPS6214013B2 (en) | 1987-03-31 |
Family
ID=15315402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14244281A Granted JPS5845333A (en) | 1981-09-11 | 1981-09-11 | Continuous annealing equipment of strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5845333A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59224981A (en) * | 1983-04-08 | 1984-12-17 | Sony Corp | Test signal generator |
-
1981
- 1981-09-11 JP JP14244281A patent/JPS5845333A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59224981A (en) * | 1983-04-08 | 1984-12-17 | Sony Corp | Test signal generator |
| JPH0580878B2 (en) * | 1983-04-08 | 1993-11-10 | Sony Corp |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6214013B2 (en) | 1987-03-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4330112A (en) | Apparatus for cooling a steel strip in a continuous annealing line | |
| JPS6117883B2 (en) | ||
| JPS5845333A (en) | Continuous annealing equipment of strip | |
| JPS5891130A (en) | Cooling method for strip in successive annealing | |
| US2892744A (en) | Method and apparatus for the continuous heat-treatment of metal strip | |
| US2334177A (en) | Continuous strip pickling | |
| US3672009A (en) | Method of autoclaving building blocks | |
| JPS638744Y2 (en) | ||
| JPS5980730A (en) | Method for recovering sensible heat from steel strip coil | |
| JPS58120748A (en) | Continuous heat treatment installation for cold-rolled steel strip for working and high tensile cold-rolled steel strip | |
| JPS5980729A (en) | Method for recovering sensible heat from steel strip coil | |
| JPS6140732B2 (en) | ||
| JPH111787A (en) | Pickling treatment method of steel strip and its device | |
| JPS5732334A (en) | Continuous heat treatment furnace for metallic strip | |
| JPS6372833A (en) | Cooler for water cooling | |
| JPS5839743A (en) | Heat treatment and water cooling apparatus thereof | |
| JPH0234728A (en) | Method for controlling injection of water into dip cooler in continuous annealing furnace | |
| JPS5873727A (en) | Preheating method of strip in continuous heat treatment equipment | |
| JPS60145326A (en) | Method and installation for continuous annealing of cold rolled steel sheet | |
| JPS58145306A (en) | Method and device for cooling hot finish-rolled metal | |
| JPS62151204A (en) | Treatment of hot rolled metallic strip | |
| JPS5923826A (en) | Cooling method of metallic strip by cooling roll | |
| JPS6058800B2 (en) | Steel strip cleaning and cooling equipment | |
| JPS5970729A (en) | Method and device for recovering sensible heat of metallic strip | |
| JPS62151528A (en) | Method for recovering sensible heat of metallic strip |