JPS6254372B2 - - Google Patents
Info
- Publication number
- JPS6254372B2 JPS6254372B2 JP57110380A JP11038082A JPS6254372B2 JP S6254372 B2 JPS6254372 B2 JP S6254372B2 JP 57110380 A JP57110380 A JP 57110380A JP 11038082 A JP11038082 A JP 11038082A JP S6254372 B2 JPS6254372 B2 JP S6254372B2
- Authority
- JP
- Japan
- Prior art keywords
- zone
- water
- roll
- cooling
- hot water
- 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.)
- Expired
Links
- 238000001816 cooling Methods 0.000 claims description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 59
- 239000007921 spray Substances 0.000 claims description 14
- 238000000137 annealing Methods 0.000 claims description 12
- 238000003303 reheating Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000002791 soaking Methods 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000006386 neutralization reaction Methods 0.000 claims description 4
- 238000005554 pickling Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000010791 quenching Methods 0.000 description 12
- 230000000171 quenching effect Effects 0.000 description 12
- 239000007789 gas Substances 0.000 description 11
- 239000010960 cold rolled steel Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000000112 cooling gas Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- KEUKAQNPUBYCIC-UHFFFAOYSA-N ethaneperoxoic acid;hydrogen peroxide Chemical compound OO.CC(=O)OO KEUKAQNPUBYCIC-UHFFFAOYSA-N 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000013585 weight reducing agent 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
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)
Description
【発明の詳細な説明】
本発明は超高速から低速までの広範囲の冷却機
能をそなえた連続焼鈍炉に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a continuous annealing furnace equipped with a wide range of cooling functions from ultra-high speed to low speed.
近年連続焼鈍炉によつて良好な加工性を要求さ
れる冷延鋼板又は高張力鋼板を工業的に製造する
ようになつた。これは、加熱均熱終了時に完全に
平衡状態まで固溶している炭素を、急速冷却する
ことにより固溶炭素の過飽和状態をつくり出した
あと過時効処理を行つて、固溶炭素を殆んど完全
に析出する技術が確立したからである。そしてそ
の技術の決め手は均熱終了後の冷却方法にある。 In recent years, continuous annealing furnaces have been used to industrially produce cold-rolled steel sheets or high-strength steel sheets that require good workability. This is done by rapidly cooling the carbon, which is completely dissolved in solid solution to an equilibrium state at the end of heating and soaking, to create a supersaturated state of carbon in the solid solution, and then performing an overaging treatment to remove most of the carbon in the solid solution. This is because the technology for complete precipitation has been established. The key to this technology lies in the cooling method after soaking.
現在、工業的に実施できる主要な冷却方法に
は、冷却ガスジエツト、冷却ロール接触、水又は
熱水による浸せき及びミスト又はスプレー冷却が
ある。冷却速度はそれぞれ異なり、水浸せき1000
〜2000℃／秒、熱水浸せき30〜100℃／秒、冷却
ロール接触60〜200℃／秒、冷却ガスジエツト５
〜30℃／秒等である。 The main cooling methods currently available industrially include cooling gas jets, cooling roll contact, water or hot water immersion, and mist or spray cooling. The cooling rate is different, water immersion 1000
~2000℃/sec, hot water immersion 30~100℃/sec, cooling roll contact 60~200℃/sec, cooling gas jet 5
~30°C/sec, etc.
一般に良好なる絞り用冷延鋼板を製造するため
には、水冷却の場合は必要とする過時効処理時間
は約１分で最も短く、ロール冷却で約３分、ガス
ジエツト冷却で約５分と最も長い。即ちガスジエ
ツト冷却法を採用した連続焼鈍炉は水冷却による
ものより５倍の炉長の過時効帯を必要とし、過剰
な工場敷地と設備費を必要とする。又、水冷却に
よる場合は水温から過時効温度350〜450℃まで再
加熱を必要とし過剰な燃料を消費する。 In general, in order to produce good cold-rolled steel sheets for drawing, water cooling requires the shortest overaging time of about 1 minute, roll cooling requires the shortest time of about 3 minutes, and gas jet cooling requires the shortest time of about 5 minutes. long. That is, a continuous annealing furnace employing the gas jet cooling method requires an overaging zone that is five times longer than one using water cooling, and requires excessive factory space and equipment costs. In addition, when using water cooling, reheating from the water temperature to the overaging temperature of 350 to 450°C is required, which consumes excessive fuel.
一方、最近自動車業界では、安全性と軽量化に
よる省エネルギーの目的で高張力冷延鋼板を使用
する傾向にある。 On the other hand, there has recently been a trend in the automobile industry to use high-strength cold-rolled steel sheets for the purpose of safety and energy saving through weight reduction.
連続焼鈍炉で高張力冷延鋼板を製造する場合、
水冷却方法によると超高速冷却の効果により、普
通低炭素鋼でプレス成形性、スポツト溶接性が良
く且つ焼付硬化性の優れた製品を製造できる。冷
却速度の遅いガスジエツト冷却法による場合は合
金元素を添加するので製造コストが高い。 When manufacturing high-strength cold-rolled steel sheets in a continuous annealing furnace,
According to the water cooling method, due to the effect of ultra-high-speed cooling, it is possible to produce products made of ordinary low carbon steel that have good press formability, good spot weldability, and excellent bake hardenability. If a gas jet cooling method with a slow cooling rate is used, manufacturing costs are high because alloying elements are added.
巾広い冷却速度範囲を得るために、ロール冷却
法と水冷却法を一つのラインで併用した場合に、
何れかの方法を選択するときストリツプのパス切
替え作業を必要とする。しかし通常この切替えに
６〜10数時間のライン停止が不可欠で稼動率低下
の原因となる。 In order to obtain a wide cooling rate range, when roll cooling method and water cooling method are used together on one line,
Selecting either method requires strip path switching work. However, this changeover usually requires a line stoppage of 6 to 10 hours, which causes a decrease in operating efficiency.
本発明はこのような問題点を解決するために
種々の研究結果をもとにして提案されたものであ
り、超高速から低速までの範囲の冷却機能をそな
え、軟質から高張力に至る巾広い用途に対応する
製品を経済的に製造することを可能とした連続焼
鈍炉を提供するものである。 The present invention was proposed based on various research results in order to solve these problems, and has a cooling function ranging from ultra-high speed to low speed, and a wide range of cooling functions from soft to high tensile strength. The present invention provides a continuous annealing furnace that makes it possible to economically manufacture products that meet various uses.
以下本発明の一実施例を添付図面に従つて説明
する。 An embodiment of the present invention will be described below with reference to the accompanying drawings.
第１図に示すように連続焼鈍炉は加熱帯１、均
熱帯２、ガスジエツト帯８、ロール冷却装置１
５、水冷装置１８、再加熱帯１６、過時効帯１７
に大別される。加熱は通常ラジアントチユーブで
行うが、直火加熱を用いるのもよい。均熱帯２で
ストリツプは一般に絞り用冷延鋼板を製造する場
合A1変態直下すなわち700〜730℃で45秒程度保
持される。 As shown in Figure 1, the continuous annealing furnace consists of a heating zone 1, a soaking zone 2, a gas jet zone 8, and a roll cooling device 1.
5, water cooling device 18, reheating zone 16, overaging zone 17
It is broadly divided into Heating is usually done with a radiant tube, but direct heating may also be used. In the soaking zone 2, the strip is generally held at a temperature of 700 to 730° C. for about 45 seconds just below the A1 transformation when producing cold rolled steel sheets for drawing.
ガスジエツト帯８には冷却雰囲気ガスをストリ
ツプに吹きつける噴射管９がある。ノズルの形
状、大きさは均一冷却が行えるように決められ
る。このガスジエツト帯出側のストリツプ温度は
次工程のロール冷却又は水冷装置入口の定められ
た温度に制御される。 In the gas jet zone 8 there is an injection tube 9 which blows cooling atmospheric gas onto the strip. The shape and size of the nozzle are determined to ensure uniform cooling. The strip temperature on the outlet side of the gas jet strip is controlled to a predetermined temperature at the inlet of the roll cooling or water cooling equipment in the next step.
このガスジエツト帯８後方には、デフレクタロ
ール１１が設けられており、後述するパスライン
の切替えに伴つて、特に水又は熱水焼入れからロ
ール冷却に切替えられた時に、ロール冷却装置１
５側にストリツプの方向を変換するために使用さ
れる。 A deflector roll 11 is provided behind this gas jet zone 8, and a roll cooling device 1
Used to change the direction of the strip to the 5 side.
ロール冷却群１３の前後には第２図に示すよう
に緊張ロール１２及び１４があり、ストリツプの
板厚、板巾や板温によつて自由に張力制御され
る。冷却ロール１３は内部を水冷又は加熱できる
構造とする。通常この目的に水又は蒸気を使用す
るが、他の冷媒又は加熱空気などを使用すること
もできる。ロール１３は上下に昇降可能でストリ
ツプの接触長を調整する。 As shown in FIG. 2, there are tension rolls 12 and 14 before and after the cooling roll group 13, and the tension can be freely controlled depending on the thickness, width, and temperature of the strip. The cooling roll 13 has a structure in which the inside can be water-cooled or heated. Usually water or steam is used for this purpose, but other refrigerants or heated air etc. can also be used. The roll 13 can be moved up and down to adjust the contact length of the strip.
タンク式の水冷装置１８の中にはスプレーノズ
ル２２，２３とシンクロール１９が設けられ、上
部には水冷装置１８とロール冷却装置１５との間
で雰囲気をシールできる開閉扉２４が設けられ
る。スプレーノズル２３とシンクロール１９は第
３図に示すように交換装置３６，４０によつて水
冷装置１８の機外に引き出し可能となつている。
すなわちスプレーノズル２３とシンクロール１９
は水冷装置のケーシングからフランジ３４，３５
及び３８の部分で分離される。また水封装置３
３、軸受３１はシンクロール１９と一体で、自在
接ぎ手２９とカツプリング３０で分離可能であ
る。そしてスプレーノズル２３とシンクロール１
９を支持した交換装置３６，４０はローラ３７に
よりレール３９に沿つて移動可能となつている。 Spray nozzles 22 and 23 and a sink roll 19 are provided in the tank-type water cooling device 18, and an opening/closing door 24 is provided at the top to seal the atmosphere between the water cooling device 18 and the roll cooling device 15. The spray nozzle 23 and sink roll 19 can be pulled out of the water cooling device 18 by exchange devices 36 and 40, as shown in FIG.
That is, the spray nozzle 23 and the sink roll 19
is from the casing of the water cooling device to the flanges 34 and 35.
and 38 parts. Also, water sealing device 3
3. The bearing 31 is integrated with the sink roll 19 and can be separated using the universal joint 29 and the coupling ring 30. And spray nozzle 23 and sink roll 1
The exchange devices 36 and 40 supporting the exchangers 9 are movable along a rail 39 by rollers 37.
なお、スプレーノズル２２，２３からのスプレ
ー水は連絡管２６を通じで循環タンク２７に戻る
ことになる。 Note that the spray water from the spray nozzles 22 and 23 returns to the circulation tank 27 through the communication pipe 26.
再加熱帯１６−過時効帯１７に続き、焼鈍炉出
側に設置されたループ貯蔵装置４７のあとには酸
洗４９、水洗５０、中和５１、温水洗５２をもつ
た表面清浄装置４８が設けられている。 Following the reheating zone 16 and the overaging zone 17, a surface cleaning device 48 having pickling 49, water washing 50, neutralization 51, and hot water washing 52 is located after the loop storage device 47 installed on the outlet side of the annealing furnace. It is provided.
次に本発明の作用効果を説明する。 Next, the effects of the present invention will be explained.
まず、ロール冷却法によるストリツプパスはデ
フレクタロール１１から点線４２の経路をへて緊
張ロール１２、水冷ロール１３の順で形成され
る。この場合扉２４を密閉してロール冷却装置１
５に空気が侵入しないようにする。水焼入れの場
合は扉２４は開放してストリツプパスはシンクロ
ール１９をへて緊張ロール１２、加熱ロール１３
の順で形成される。 First, a strip path by the roll cooling method is formed from the deflector roll 11 through the path indicated by the dotted line 42 to the tension roll 12 and then to the water-cooled roll 13 in this order. In this case, the door 24 is sealed and the roll cooling device 1 is closed.
5. Prevent air from entering. In the case of water quenching, the door 24 is opened and the strip path passes through the sink roll 19, the tension roll 12, and the heating roll 13.
It is formed in the following order.
再加熱帯１６はラジアントチユーブでストリツ
プを加熱する。再加熱帯として使用する場合は水
焼入れのときで、ロール冷却を使用するときは加
熱をやめて過時効帯１７となる。 Reheating zone 16 heats the strip with radiant tubes. When used as a reheating zone, it is during water quenching, and when using roll cooling, heating is stopped and the overaging zone 17 is formed.
水焼入れの場合、水冷装置１８でストリツプ温
度は水温まで低下するので、ロール１３を加熱
し、ストリツプを乾燥した後再加熱帯に入る。 In the case of water quenching, the strip temperature is lowered to water temperature in the water cooling device 18, so the roll 13 is heated and the strip is dried before entering the reheating zone.
水冷装置１８の水位と循環水量を制御すること
によつてストリツプの冷却速度がコントロールで
きストリツプ温度は自由に目標とする温度に保持
できる。これを熱水焼入れという。熱水焼入れの
場合、ロール群１３は冷却ロールとして使用可能
で、接触長を変化させることによつて所定の板温
度に制御されたストリツプは過時効帯１７に入
る。 By controlling the water level of the water cooling device 18 and the amount of circulating water, the cooling rate of the strip can be controlled and the strip temperature can be freely maintained at a target temperature. This is called hot water quenching. In the case of hot water quenching, the roll group 13 can be used as a cooling roll, and the strip enters the overaging zone 17, which is controlled at a predetermined plate temperature by varying the contact length.
ロール冷却装置１５、水冷装置１８内で発生す
る蒸気は導管４１を通じて抽気され、炉内に侵入
しないようにする。なおガスジエツト帯８出口及
び再加熱帯１６入口部にはシール装置１０があつ
て炉内雰囲気ガスの流出を調整している。 Steam generated in the roll cooling device 15 and water cooling device 18 is extracted through a conduit 41 to prevent it from entering the furnace. A sealing device 10 is provided at the outlet of the gas jet zone 8 and the inlet of the reheating zone 16 to regulate the outflow of the furnace atmosphere gas.
ロール冷却法から水焼入れの場合のストリツプ
パス変更は次のように実施される。先ず扉２４が
開放される。この時スプレーノズル２３とシンク
ロール１９は第３図に示すように交換装置３６，
４０によつて機外の点線の位置に待期する。 The strip path change from roll cooling to water quenching is carried out as follows. First, the door 24 is opened. At this time, the spray nozzle 23 and sink roll 19 are replaced by a replacement device 36, as shown in FIG.
40, wait at the dotted line position outside the aircraft.
次いでロール１１に巻きついたストリツプをた
るませて扉位置の開口部から水冷装置１８のケー
シング底部まで到達させ、ストリツプパスの内側
にシンクロール１９とスプレーノズル２７を点線
位置から移動させながら実線位置に装入且つ夫々
の部品を固定する。しかる後ストリツプ張力を張
つて水焼れパスを形成する。 Next, the strip wound around the roll 11 is slackened to reach the bottom of the casing of the water cooling device 18 from the opening at the door position, and the sink roll 19 and spray nozzle 27 are moved from the dotted line position to the solid line position inside the strip path. and fix each part. Thereafter, the strip is tensioned to form a water scorch path.
水焼入れパスからロール冷却パスに変更する場
合は上記の逆の順序で実施する。即ち、ストリツ
プの張力をゆるめシンクロール１９とスプレーノ
ズル２３を交換装置３６，４０によつて機外に移
動する。シンクロール１９に巻きついていたスト
リツプは張力を張ることによつて上昇しロール１
１に巻きつき扉２４を密閉してストリツプパスを
形成する。 When changing from a water quenching pass to a roll cooling pass, carry out the process in the reverse order. That is, the tension on the strip is loosened and the sink roll 19 and spray nozzle 23 are moved out of the machine by the exchange devices 36 and 40. The strip wrapped around sink roll 19 rises by applying tension to roll 1.
1 and seals the door 24 to form a strip path.
また表面清浄装置４８では、ロール冷却を使用
して製品を製造する場合、酸洗、中和タンクは水
又は温水と切り替えて冷却タンクとして使用す
る。水焼入れ又は熱水焼入れの場合は焼入れ中に
発生する微少の酸化皮膜を除去するため酸洗中和
処理する。 Further, in the surface cleaning device 48, when manufacturing a product using roll cooling, the pickling and neutralization tank is used as a cooling tank by switching to water or hot water. In the case of water quenching or hot water quenching, pickling and neutralization are performed to remove minute oxide films generated during quenching.
表面清浄装置４８を通過したストリツプは絞り
ロール５４、ドライヤ５５をへて出側設備に移動
し、通常の場合調質圧延、縁切り、塗油後巻取り
機に巻き取られて製品コイルになる。 The strip that has passed through the surface cleaning device 48 passes through a squeezing roll 54 and a dryer 55, and is then moved to an exit facility, where it is normally subjected to skin-pass rolling, edge cutting, and oiling, and then wound into a winder to become a product coil.
以上説明したように、本発明によれば加熱均熱
に続く冷却でそのパスラインの切換えを完全に且
つ短時間で行なうことができるため、ロール冷
却、水焼入れや熱水焼入れ及びこれらの組み合せ
等の冷却処理の切換えが適格になされて超高速か
ら低速までの広範囲の冷却を行なうことができる
と共に、ロール冷却に切換えた際の雰囲気管理も
容易に行なえるため、軟質から高張力に至る巾広
い用途に対応する製品を経済的に且つ効率的に製
造することが可能となる等、その効果の優れた発
明である。 As explained above, according to the present invention, the pass line can be switched completely and in a short time by cooling following heating and soaking, so roll cooling, water quenching, hot water quenching, and combinations thereof, etc. The cooling process can be appropriately switched to perform a wide range of cooling from ultra-high speed to low speed, and the atmosphere can be easily controlled when switching to roll cooling, so it can be used for a wide range of applications from soft to high tensile strength. This invention has excellent effects, such as making it possible to economically and efficiently manufacture products suitable for various uses.
第１図は本発明に係る連続焼鈍炉の概略図、第
２図は第１図の要部拡大図、第３図は水冷装置に
おけるスプレーノズルとシンクロールの移動装置
の概略図である。
図中、１は加熱帯、２は均熱帯、８はガスジエ
ツト帯、１５はロール冷却装置、１６は再加熱
帯、１７は過時効帯、１８はタンク式水冷装置、
２２，２３はスプレーノズル、１９はシンクロー
ル、３６，４０は交換装置、４８は表面清浄装置
を各示す。
FIG. 1 is a schematic diagram of a continuous annealing furnace according to the present invention, FIG. 2 is an enlarged view of the main part of FIG. 1, and FIG. 3 is a schematic diagram of a moving device for a spray nozzle and a sink roll in a water cooling device. In the figure, 1 is a heating zone, 2 is a soaking zone, 8 is a gas jet zone, 15 is a roll cooling device, 16 is a reheating zone, 17 is an overaging zone, 18 is a tank type water cooling device,
22 and 23 are spray nozzles, 19 is a sink roll, 36 and 40 are exchange devices, and 48 is a surface cleaning device.
Claims (1)
及び過時効処理帯を有する連続焼鈍炉において、
ガスジエツト帯と再加熱帯との間にパスライン切
替に伴つて使用されるデフレクタロールと、水又
は熱水タンクと、入側・出側部に緊張ロールを配
した水冷ロール群を順次連設し、かつ前記水又は
熱水タンクに備えられるスプレーノズルとシンク
ロールをタンク内外に出し入れ可能とし、更に前
記水又は熱水タンクのある水冷装置と水冷ロール
群を有するロール冷却装置との間に雰囲気シール
用の開閉扉を設けたことを特徹とする連続焼鈍
炉。 ２ 加熱帯、均熱帯、ガスジエツト帯、再加熱帯
及び過時効処理帯を有する連続焼鈍炉において、
ガスジエツト帯と再加熱帯との間にパスライン切
替に伴つて使用されるデフレクタロールと、水又
は熱水タンクと、入側・出側部に緊張ロールを配
した水冷ロール群を順次連設し、かつ前記水又は
熱水タンクに備えられるスプレーノズルとシンク
ロールをタンク内外に出し入れ可能とすると共
に、該水又は熱水タンクのある水冷装置と水冷ロ
ール群を有するロール冷却装置との間に雰囲気シ
ール用の開閉扉を設け、更に焼鈍炉出側に酸洗、
中和、洗滌の表面清浄装置を設置したことを特徴
とする連続焼鈍炉。[Claims] 1. A continuous annealing furnace having a heating zone, a soaking zone, a gas jet zone, a reheating zone, and an overaging zone,
A deflector roll used for switching the pass line between the gas jet zone and the reheating zone, a water or hot water tank, and a group of water-cooled rolls with tension rolls arranged on the inlet and outlet sides are successively installed. , and a spray nozzle and a sink roll provided in the water or hot water tank can be taken in and out of the tank, and an atmosphere seal is provided between the water cooling device in which the water or hot water tank is located and the roll cooling device in which the water cooling roll group is located. A continuous annealing furnace that is specially designed with a door that can be opened and closed. 2. In a continuous annealing furnace having a heating zone, soaking zone, gas jet zone, reheating zone, and overaging zone,
A deflector roll used for switching the pass line between the gas jet zone and the reheating zone, a water or hot water tank, and a group of water-cooled rolls with tension rolls arranged on the inlet and outlet sides are successively installed. , and a spray nozzle and a sink roll provided in the water or hot water tank can be taken in and out of the tank, and an atmosphere is created between the water cooling device in which the water or hot water tank is located and the roll cooling device having a group of water-cooled rolls. An opening/closing door is provided for sealing, and pickling and
A continuous annealing furnace characterized by being equipped with a surface cleaning device for neutralization and cleaning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11038082A JPS591640A (en) | 1982-06-26 | 1982-06-26 | Continuous annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11038082A JPS591640A (en) | 1982-06-26 | 1982-06-26 | Continuous annealing furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS591640A JPS591640A (en) | 1984-01-07 |
| JPS6254372B2 true JPS6254372B2 (en) | 1987-11-14 |
Family
ID=14534336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11038082A Granted JPS591640A (en) | 1982-06-26 | 1982-06-26 | Continuous annealing furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS591640A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61243128A (en) * | 1985-04-20 | 1986-10-29 | Nippon Steel Corp | Cooling method for metallic strip in cooling zone of continuous annealing furnace |
| JP2540066B2 (en) * | 1988-11-15 | 1996-10-02 | 新キャタピラー三菱株式会社 | Vertical stabilizer paraplane with tabs |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5794528A (en) * | 1980-12-04 | 1982-06-12 | Nippon Kokan Kk <Nkk> | Continous annealing facility |
-
1982
- 1982-06-26 JP JP11038082A patent/JPS591640A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5794528A (en) * | 1980-12-04 | 1982-06-12 | Nippon Kokan Kk <Nkk> | Continous annealing facility |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS591640A (en) | 1984-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3365469B2 (en) | Primary cooling method in continuous annealing of steel strip | |
| US4408561A (en) | Dual-purpose plant for producing cold rolled steel sheet and hot-dip galvanized steel sheet | |
| JP2505841B2 (en) | Method for producing non-aged fused zinc matt strips | |
| CN109097534B (en) | Very thin precise stainless steel strip busbar bright annealing technology | |
| KR850001290B1 (en) | Process for cooling a cold rolled steel strip | |
| JPS6254372B2 (en) | ||
| SU1139376A3 (en) | Method of continuous roasting of cold-rolled steel strip made of low-carbon steel and device for effecting same | |
| JPS5842254B2 (en) | Continuous annealing equipment | |
| EP0086331A1 (en) | Continuous heat treating line for mild and high tensile strength stell strips or sheets | |
| JPS6111299B2 (en) | ||
| JPS644830Y2 (en) | ||
| JPS5811493B2 (en) | Continuous annealing equipment for cold rolled steel strip | |
| JPS60145327A (en) | Method and installation for continuous annealing of cold rolled steel sheet | |
| JP2807134B2 (en) | Gas jet chamber sealing device | |
| JPS61183415A (en) | Cooling method of strip in continuous heat treatment furnace | |
| JP2970920B2 (en) | Alloying furnace and operating method thereof | |
| US20220213574A1 (en) | Processing line for the continuous processing of metal strips having a dual purpose of producing strips that are annealed and dip-coated or not coated, and corresponding cooling tower and method for switching from one configuration to the other | |
| JPS6230248B2 (en) | ||
| CN117737357A (en) | Quick continuous annealing ultra-high strength strip steel production line | |
| JPS5591929A (en) | Method and facility for continuous annealing of cold rolled steel strip | |
| CN117701872A (en) | Continuous annealing or hot galvanizing dual-purpose ultra-high-strength strip steel production line | |
| JP4242932B2 (en) | Primary cooling method in continuous annealing of steel strip | |
| JPS60145326A (en) | Method and installation for continuous annealing of cold rolled steel sheet | |
| CN117701868A (en) | Quick continuous annealing strip steel production line | |
| JPS5839892B2 (en) | Continuous annealing equipment for cold rolled steel sheets |