JPS6144134A - Overaging method and furnace therefor - Google Patents

Overaging method and furnace therefor

Info

Publication number
JPS6144134A
JPS6144134A JP16478584A JP16478584A JPS6144134A JP S6144134 A JPS6144134 A JP S6144134A JP 16478584 A JP16478584 A JP 16478584A JP 16478584 A JP16478584 A JP 16478584A JP S6144134 A JPS6144134 A JP S6144134A
Authority
JP
Japan
Prior art keywords
strip
coil
overaging
furnace
cooled
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
Application number
JP16478584A
Other languages
Japanese (ja)
Other versions
JPH0447013B2 (en
Inventor
Kazumasa Mihara
一正 三原
Kanaaki Hyodo
兵頭 金章
Toshiaki Matsubara
松原 敏昭
Katsuaki Tanaka
克明 田中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Toyo Kohan Co Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Toyo Kohan Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd, Toyo Kohan Co Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP16478584A priority Critical patent/JPS6144134A/en
Publication of JPS6144134A publication Critical patent/JPS6144134A/en
Publication of JPH0447013B2 publication Critical patent/JPH0447013B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE:To carry out overaging by a simple mechanism by coiling a primarily cooled strip to form a coil, drawing out the strip, and welding it to the preceding strip. CONSTITUTION:The strip 0 cooled with a gas jet cooler 8 in the primary cooling zone of a cooling and overaging furnace 4' is cut through drum chutes 11 and coiled around a coiler 13 or 14 to form a coil C. After the lapse of a specified time, the strip 0 is drawn out of the coiler 14. During the specified time, the coil C (strip 0) is overaged by its own sensible heat. The drawn strip 0 is sent to a welder 18 through pinch rolls 16 and deflector rolls 17, and after welding to the rear end of the preceding strip, the resulting continuous strip is cooled in the following secondary cooling zone.

Description

【発明の詳細な説明】[Detailed description of the invention]

本発明は連続焼鈍炉等において使用される過時効処理方
法及び過時効炉に関する。 第1図に従来の連続焼鈍炉の1ψ11を示す。同図に示
されるように、連続焼鈍炉は、入側ルーバ1.加熱・均
熱炉2.第1冷却帯3.過時効炉4.第2冷却炉5及び
出側ルーバ6を具えている。即ち、ストリップoVi図
示省略したコイルの接続時等において、入側でのライン
停止を回避するだめの入側ルーバ1全通された後、加熱
・均熱炉2においてLxA&lによる処理条件に合せて
700〜800℃まで加熱保持され、次いで、第1冷却
帯3で400℃程度1で冷却され、引き続き過時効炉4
で冷却終了B度(400℃程度)の−1ま所定時間保持
され(これを、過時効処理といい、jM f、flによ
っても5′4なるが、およそ3分以上の時間が必要であ
る。)、更に、過時効処理を終えたストリップOは非酸
化温度とされる200〜1500程度まで第2冷却炉5
でパ1却きれ、その
The present invention relates to an overaging treatment method and an overaging furnace used in a continuous annealing furnace or the like. FIG. 1 shows 1ψ11 of a conventional continuous annealing furnace. As shown in the figure, the continuous annealing furnace has an entrance louver 1. Heating/soaking furnace 2. 1st cooling zone 3. Overaging furnace 4. It is equipped with a second cooling furnace 5 and an outlet louver 6. That is, when connecting the strip oVi coil (not shown), etc., after the inlet side louver 1 is completely passed through to avoid line stoppage on the inlet side, the strip oVi is heated in the heating/soaking furnace 2 at 700°C according to the processing conditions according to LxA&l. It is heated to ~800°C, then cooled to about 400°C1 in the first cooling zone 3, and then heated to an overaging furnace 4.
The cooling is completed at -1 degree B (approximately 400°C) and maintained for a predetermined time. ), the strip O that has undergone the overaging treatment is further heated in a second cooling furnace 5 to a temperature of about 200 to 1500, which is considered to be a non-oxidizing temperature.
So Pa 1 is rejected, that

【(出側ルーパ6、切断(景(図示
省、遁)を、τtて巻取(1(図示眉間)に至り巻き取
られる。加熱・均熱炉2から第2?@却炉51では外気
からB ’Qきれ、その入側及び出側KViノールロー
ル7が配置きれ、その内部は還元ガス、1シリえは♂゛
(;(、と水素の混合気が充満されている。 このような従来の連続焼鈍炉においては、過時効炉4に
ついて、(1)単に過時効時間をυまたすだめに長大な
過時効炉が必要であり、この寸法は最大ライン速度によ
って決まり、他のライン速度では長すぎるという大型化
の問題及び(支))ストリップ温度をほぼ一定に保つた
めに加熱装置が必要で6るという複雑化の問題があった
。即ち、過時効炉は特別な温度変化かないまま過時効時
間を経過孕せるのみでおるから、例えば過時効時間を5
分、ライン速度を400 rn/m1nとすると、過時
効炉内におけるライン長は2000mにも及び、ストリ
ップを張りiす上部ロールと下部ロールとの間藤を20
mとすると、約100パスを女することとなり、過時効
炉の寸法に非jEに大きなものとなる。また、炉内にお
いてストリップOのσ4 iを一定に保持しなければな
らないが、炉体からの放熱がセけられないため、電熱ヒ
ータ等の加熱装置を寂けてス) IJノブの脱塵低下を
防止する必要がちる。 本発明は上述した従来技術に丁―み、ロール011にス
トリップ゛を弓長り渡すのではなく、一旦ストリップを
巻き取ってコイルとし、その後繰り出すことにより、上
述した大型化及びす雑化の間↓ 題解決する過時効処理方法及びJ+4時効炉全快供する
ことを目的とする。斯かる目的ラミ1成する本発明の過
時効処理方法に係る((″り成は連続焼鈍炉において、
第1冷却帯にて冷却されたストリップを、冷却終了a反
のままバ「定時間を経過場〕過時効処理方法でろって、
上記ストリップを巻き取って切断することによりコイル
とし、該コイルを所定時間放置した後、該コイルからス
トリップを繰り出して先行するストリップに(d接し、
連続するストリップとすることを特徴とする。一方、上
記目的を達成する本発明の過時効炉に係るj1?1成は
連続焼鈍炉において、第1冷却帯にて冷却されたス) 
IJツブを、冷却終了温度のi11定時間を経】ハさせ
ろ過時効炉でちって、上Qeストリップを巻き取ってコ
イルとするコ・1うと、コスライラに巻き取られるコイ
ルをストリップから切断して切り離すドラムシューと、
i’+il記コイラにうイ取られたコイルから繰シ出さ
れたストリップを先行するストリップにm接する谷接機
とを具えることを特徴とする。 以下、本発明の一実施例を図面を参照して詳、till
 K説明する。 第2図に本発明の一実施例を示す。同図に示す実施例は
、」0時全快と1次冷却帯とを組み合せた冷却・過時効
炉4′を示しており、過時効炉i、tフラ(トルロール
9.ピンチロールL O、トラムツユ−11,ベルトガ
イド12.ライン13゜14、ベルトガイド15.ピン
チロール16゜デフレクタロール17及び溶接機18等
を具える。即ち、冷却・コD時効全快’に入つたス) 
IJツブOは1次冷却帯でわるガスジェット冷却装置8
で一定温度まで冷却され、プライドルロール9で加熱・
均熱炉2からガスジェット冷却装置8までの張力を制鍔
きれる。次いで、ストリップ0はピンチロール10をれ
てドラム7−11を通過する。ドラムシュー11il:
後述するタイミングで作動してライン13,14に1回
で巻き取られる長場に相当するようストリップOを切断
する。ライン13,14は相隔てて配置きれており、ド
ラム7−−11からいずれかのライン13又は14にス
トリップ0を案内できるよう、ベルトガイド12#i一
定の範凹で回動できるように借成されている。図中に示
すように、ストリップ0がライン13に案内きれて巻き
取られコイルCが形成される一力では、既にライン14
に巻き取られて一定時間紅過したコイルCからストリッ
プOがV(コり出きれることとなる。 巻き取られてから繰り出される嘘でのコイルC1つまり
ス) IJツブ0は自己の持つ顕−1′Vで透時効処即
されることとなる。繰り出きれたストリノ70にベルト
ガイド15にLr内され、ピンチロール1G、デフレク
タロール17を経て、溶接1218に至る。n7広機1
8には先行するストリップOの後端が侍俊しており、溶
接機18VCおいて、先行するストリップの後端と繰り
出され1ヒストリツプ0の先端とが浴接嘔れる。m接さ
jL連αしたス) IJノブO社、後続する二次冷却帯
で処理されることとなる。コイルCが元金にをきtlど
けてストリップ0の終端が溶接機18ニ至るとラインが
停止し、次のストリップとの(溶接を待つ。 上記(iJ bliを有する過時効炉において、過時効
処理方法は、第3図に示すタイムスケジュールにtrt
つて行なわれる。同図に実MKて示すように、ライン1
3にストリップ0が一定X巻き取られると、ドラムシュ
ー11がストリップを切断してライン13が停止すると
、今度i、LM線にて示すようにストリップ0はライン
14に巻き取られることとなり、常時いずれかのライン
(13又は14にて巻き取りが行われ・能率的に処理が
行われるようになっている。一方、ストリップOがライ
ン14に巻き取られる間に、ライン13に巻き取られた
コイル13H一定時間放置されて、その後先行するス)
 l)ノブに浴接され繰り出されることになる。このよ
うなタイムスケジュールに従って過時効処理を行う場合
、巻き取り時間と繰り出し時間の差が】11時効時間と
なるわけであるから、後続の処理速度を上げることによ
り繰り出し時間を短縮すれば、過時効時間を十分に確保
することができる。尚、ここにいう過時効時間とは、コ
イルに巻き取られたストリップの後端が過時効条件を満
たす時間である。又、過時効時間τとライン速度との間
には下式のような関係が必要でらる。 v、 ) v。 G≧rωtr  (v、 −v+  )但し、rは鉄の
比重(h/crA )、ωはストリップ巾(rr+)、 tはストリップ厚さくI?I)、 丁は過時効時間(h)、 V、はu51冷却イ1;でのライ ン速度(m/h)、 V、はイ412玲却帝でのライ ン速肋(m/ h )、 Gはコイルの重祉(kf)で ある。 以上、実施f11に基づいて具体的に説明したように本
yt明の過時効炉及び過時効処理方法は、従来技術と異
な90一ラ間にストリップを張り渡すも′1成となって
おらず、一旦ストリップを巻き取ってコイルとし、その
後繰り出して先行するストリップにfJ接するようにし
ているので、S!41i1が極めてコノバクトとなると
共に加FAinが不安で極めてシンプルな(14成とな
る。
[(Output side looper 6, cutting (view (Ministry of illustration, release)) is wound up at τt until it reaches winding (1 (between the eyebrows in the illustration). From B'Q, the inlet and outlet KVi nord rolls 7 are placed, and the inside is filled with reducing gas, and the first cylinder is filled with a mixture of ♂゛(;(,) and hydrogen. In the conventional continuous annealing furnace, regarding the overaging furnace 4, (1) a long overaging furnace is required simply to increase the overaging time υ, and this dimension is determined by the maximum line speed, and the size of the overaging furnace is determined by the maximum line speed; However, in the over-aging furnace, there was the problem of oversizing, which was too long, and the problem of complication, in that a heating device was required to keep the strip temperature almost constant. For example, if the overage time is 5
If the line speed is 400 rn/m1n, the line length in the overaging furnace will reach 2000 m, and the distance between the upper roll and the lower roll on which the strip is stretched will be 20 m.
If m, approximately 100 passes will be required, and the dimensions of the overaging furnace will be larger than those for non-JE. In addition, although σ4i of the strip O must be kept constant in the furnace, heat radiation from the furnace body cannot be controlled, so heating devices such as electric heaters are left unused. It is necessary to prevent this from occurring. The present invention is based on the above-mentioned conventional technology, and instead of passing the strip over the roll 011 over an arched length, the strip is wound up into a coil and then fed out, thereby achieving the above-mentioned increase in size and complexity. The purpose of this study is to provide an over-aging treatment method that solves the problem and to bring the J+4 aging furnace into full operation. According to the overaging treatment method of the present invention for forming such a laminated lamination (1), the formation is carried out in a continuous annealing furnace.
The strip that has been cooled in the first cooling zone is subjected to an over-aging treatment method after cooling is complete.
The above strip is wound up and cut to form a coil, and after leaving the coil for a predetermined period of time, the strip is unwound from the coil and attached to the preceding strip (in d contact,
It is characterized by being a continuous strip. On the other hand, the j1?1 formation according to the overaging furnace of the present invention that achieves the above object is a continuous annealing furnace that is cooled in the first cooling zone.
After cooling the IJ tube for a certain period of time at the cooling end temperature, the IJ tube is chilled in a filtration aging furnace, and the upper Qe strip is wound up to form a coil. A detachable drum shoe,
The present invention is characterized by comprising a valley welding machine which makes the strip fed out from the coil drawn by the coiler m contact with the preceding strip. Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.
K.Explain. FIG. 2 shows an embodiment of the present invention. The embodiment shown in the figure shows a cooling/overaging furnace 4' that combines a 0 o'clock full recovery and a primary cooling zone, and includes overaging furnaces i, t fla (trul roll 9, pinch roll LO, tram tube). -11, Belt guide 12. Line 13゜14, Belt guide 15. Pinch roll 16゜ Deflector roll 17, welding machine 18, etc. (In other words, cooling and aging have fully recovered)
IJ Tsubu O is a gas jet cooling device with primary cooling zone 8
It is cooled to a certain temperature with
The tension from the soaking furnace 2 to the gas jet cooling device 8 can be controlled. Strip 0 then passes through pinch rolls 10 and drums 7-11. Drum shoe 11il:
It operates at the timing described later and cuts the strip O so as to correspond to a long field that can be wound around the lines 13 and 14 in one go. The lines 13 and 14 are spaced apart from each other, and in order to guide the strip 0 from the drum 7--11 to either line 13 or 14, the belt guide 12#i is arranged so that it can rotate within a certain range. has been completed. As shown in the figure, when the strip 0 is completely guided to the line 13 and wound up to form the coil C, the line 14 is already
The strip O from the coil C which has been wound up and passed for a certain period of time is V (it will be completely unrolled. The coil C1 is unrolled after being wound up, that is, the strip O). The aging process will be completed at 1'V. The completely unrolled Strino 70 is placed in the belt guide 15 Lr, passes through the pinch roll 1G and the deflector roll 17, and then reaches welding 1218. n7 wide machine 1
At 8, the rear end of the preceding strip O is attached, and in the welding machine 18VC, the rear end of the preceding strip and the tip of the fed-out 1st strip 0 are welded together. IJ Nobu O Co., Ltd. will be processed in the subsequent secondary cooling zone. When the coil C leaves the base metal and the end of strip 0 reaches the welding machine 18, the line stops and waits for welding with the next strip. The processing method is based on the time schedule shown in Figure 3.
It is carried out with As shown by actual MK in the same figure, line 1
3, when the strip 0 is wound up by a certain amount of Winding is done on either line (13 or 14) for efficient processing. On the other hand, while strip O is being wound on line 14, Coil 13H is left alone for a certain period of time, and then it goes on)
l) It will be brought into contact with the knob and drawn out. When overaging treatment is performed according to such a time schedule, the difference between the winding time and the unwinding time is 11 aging times, so if the unwinding time is shortened by increasing the subsequent processing speed, the overaging time can be reduced. You can secure enough time. Incidentally, the over-aging time referred to herein is the time during which the rear end of the strip wound around the coil satisfies the over-aging conditions. Further, the relationship shown in the following equation is required between the overaging time τ and the line speed. v, ) v. G≧rωtr (v, −v+), where r is the specific gravity of iron (h/crA), ω is the strip width (rr+), and t is the strip thickness I? I), D is the aging time (h), V is the line speed (m/h) at U51 cooling A1;, V is the line speed at I412 Lingting Tei (m/h), G is the coil weight (kf). As explained above in detail based on implementation f11, the overaging furnace and overaging treatment method of the present invention do not achieve '1' even though the strip is stretched between 90 mm, which is different from the conventional technology. , the strip is wound up to form a coil, and then unwound to make fJ contact with the preceding strip, so S! 41i1 will be extremely conobact, and Canada FAin will be uneasy and extremely simple (14 formations).

【図面の簡単な説明】[Brief explanation of drawings]

第1図は、従来の連続焼鈍炉の概略構成図、第2 VI
は本発明の一実施例に係る冷却−過時効炉の”:t F
lri tI′e成図、第3図は本発明方法の一実施例
のタイムスケジュールである。 1(1面  中 4′は冷却・過時効炉、 8iLガスジエツト冷却装置1 9はプライドルロール、 to、16はピンチロール、 Llt’iドラムシュー、 12.15はベルトガイと、 13.14はライン、 17はデフレクタロール、 18は溶接機、 0はストリップ、 Cはコイルである。 特許出願人 三菱重工業株式会社 東洋鋼鈑株式会社 復代理人弁砒 光石士部(他1名) 第2図 第3図 11 簡
Figure 1 is a schematic configuration diagram of a conventional continuous annealing furnace, and Figure 2 VI
of the cooling-overaging furnace according to an embodiment of the present invention: tF
FIG. 3 is a time schedule for an embodiment of the method of the present invention. 1 (1st page, 4' in the middle is the cooling/overaging furnace, 8iL gas jet cooling device 1, 9 is the priddle roll, to, 16 is the pinch roll, Llt'i drum shoe, 12.15 is the belt guy, 13.14 is the line, 17 is a deflector roll, 18 is a welding machine, 0 is a strip, and C is a coil. Patent applicant: Mitsubishi Heavy Industries, Ltd. Toyo Kohan Co., Ltd. Sub-agent: Shibe Mitsuishi (and one other person) Figure 2, Figure 3 Figure 11 Simple

Claims (2)

【特許請求の範囲】[Claims] (1)連続焼鈍炉において、第1冷却帯にて冷却された
ストリップを、冷却終了温度のまま所定時間を経過させ
る過時効処理方法であって、上記ストリップを巻き取っ
て切断することによりコイルとし、該コイルを所定時間
放置した後、該コイルからストリップを繰り出して先行
するストリップに溶接し、連続するストリップとするこ
とを特徴とする過時効処理方法。
(1) An overaging treatment method in which a strip cooled in the first cooling zone in a continuous annealing furnace is left at the cooling end temperature for a predetermined period of time, and the strip is wound up and cut to form a coil. . An overaging treatment method, which comprises leaving the coil for a predetermined period of time, then feeding out a strip from the coil and welding it to the preceding strip to form a continuous strip.
(2)連続焼鈍炉において、第1冷却帯にて冷却された
ストリップを、冷却終了温度のまま所定時間を経過させ
る過時効炉であって、上記ストリップを巻き取ってコイ
ルとするコイラと、該コイラに巻き取られるコイルをス
トリップから切断して切り離すドラムシューと、前記コ
イラに巻き取られたコイルから繰り出されたストリップ
を先行するストリップに溶接する溶接機とを具えること
を特徴とする過時効炉。
(2) An overaging furnace in which the strip cooled in the first cooling zone is kept at the cooling end temperature for a predetermined period of time in the continuous annealing furnace, and a coiler that winds the strip into a coil; An overaging device characterized by comprising a drum shoe for cutting and separating the coil wound around the coiler from the strip, and a welding machine for welding the strip unwound from the coil wound around the coiler to the preceding strip. Furnace.
JP16478584A 1984-08-08 1984-08-08 Overaging method and furnace therefor Granted JPS6144134A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16478584A JPS6144134A (en) 1984-08-08 1984-08-08 Overaging method and furnace therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16478584A JPS6144134A (en) 1984-08-08 1984-08-08 Overaging method and furnace therefor

Publications (2)

Publication Number Publication Date
JPS6144134A true JPS6144134A (en) 1986-03-03
JPH0447013B2 JPH0447013B2 (en) 1992-07-31

Family

ID=15799898

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16478584A Granted JPS6144134A (en) 1984-08-08 1984-08-08 Overaging method and furnace therefor

Country Status (1)

Country Link
JP (1) JPS6144134A (en)

Also Published As

Publication number Publication date
JPH0447013B2 (en) 1992-07-31

Similar Documents

Publication Publication Date Title
TWI412410B (en) Method for hot rolling and for heat treatment of a strip of steel
BG60451B1 (en) Method and an installation for producing steel strip reels
WO1990003244A1 (en) Method and apparatus for continuous in-line annealing of amorphous strip
JPH09122709A (en) Hot strip manufacturing plant to draw thin meat drawn strip
KR20190011524A (en) Continuous annealing equipment
US2585277A (en) Apparatus for annealing strip
JPS6144134A (en) Overaging method and furnace therefor
SU664538A3 (en) Method of manufacturing wire nets
DE888181C (en) Process for annealing and tempering strips or wires, in particular aluminum or aluminum alloys
JPH057917A (en) Hot rolling device train
JPS61135407A (en) Inlet side installation of cold rolling mill
JP2006239777A (en) Method for manufacturing hot-rolled steel sheet
KR101043075B1 (en) Device of rolling for stainless coil in cold rolling line
JPH0447014B2 (en)
JPH0461049B2 (en)
JPS58495B2 (en) Renzokushiyoudonouchi
JP3161368B2 (en) Recovery method of plate breakage in continuous annealing equipment
GB2073080A (en) Hot rolling of metal strip
AT407965B (en) Method and installation for treating a metal band
JPS58147519A (en) Continuous annealing method of fin material
JPS5967317A (en) Treatment after pickling of hot rolled steel strip
JPS61165206A (en) Method and installation for continuously cold rolling special steel
JPH03126848A (en) Annealing method
JPS63286258A (en) Method for winding continuous casting thin slab
SU1082861A1 (en) Apparatus for continuous application of coatings