JPS6052530A - Cooling method of steel strip - Google Patents
Cooling method of steel stripInfo
- Publication number
- JPS6052530A JPS6052530A JP15995783A JP15995783A JPS6052530A JP S6052530 A JPS6052530 A JP S6052530A JP 15995783 A JP15995783 A JP 15995783A JP 15995783 A JP15995783 A JP 15995783A JP S6052530 A JPS6052530 A JP S6052530A
- Authority
- JP
- Japan
- Prior art keywords
- strip
- steel strip
- refrigerant
- contact
- 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
- C21D9/573—Continuous furnaces for strip or wire with cooling
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】 この発明は、銅帯を連続的に均一に冷却するた １− めの銅帯の冷却方法に関するものである。[Detailed description of the invention] This invention provides a method for continuously and uniformly cooling a copper strip. This invention relates to a method for cooling copper strips.
銅帯を連続的に急速冷却する方法として、内部を冷媒が
流通するロールに銅帯を巻付け、前記ロールに銅帯を接
触させながら移送することによって、前記鋼帯を所定温
度に冷却する方法が知られている。As a method of rapidly cooling a copper strip continuously, the steel strip is cooled to a predetermined temperature by wrapping the copper strip around a roll through which a refrigerant flows inside and transferring the copper strip while being in contact with the roll. It has been known.
しかしながら、上述した方法は、鋼帯を板幅方向に均一
に冷却することが困難であシ、その結果、冷却後の銅帯
に変形や材質の不均一が生ずる問題があった。この問題
は、銅帯の板厚が薄い場合（１，０＊ｘμ下）に特に顕
著に生ずるため、従来は薄銅帯に対しては上述した冷却
用ロールに銅帯を巻付けて移送することによる冷却を行
なうことはできなかった。However, in the above-described method, it is difficult to uniformly cool the steel strip in the width direction of the steel strip, and as a result, there is a problem in that the copper strip after cooling is deformed and the material becomes non-uniform. This problem occurs particularly when the thickness of the copper strip is thin (below 1.0*xμ), so conventionally for thin copper strips, the copper strip is transported by being wrapped around the above-mentioned cooling roll. It was not possible to carry out any additional cooling.
銅帯ヲロールによって冷却する場合に、上述した問題が
生ずる原因は、銅帯の形状が幅伸びや耳波などの発生に
よってフラットではなく、また、銅帯は一般にその中央
部より両端部の方が薄くて、クラウンおよびエツジドロ
ラグが生じていることなどから、銅帯が冷却用ロールに
均一に接触しにくいことにあるとされていた。When cooling by rolling a copper strip, the reason for the above-mentioned problems is that the shape of the copper strip is not flat due to width elongation and the occurrence of ear waves, and the copper strip is generally thinner at both ends than in the center. It was believed that this was due to the fact that the copper strip was thin and had crowns and edge lag, making it difficult for the copper strip to come into uniform contact with the cooling roll.
本発明者等は、上述した問題の発生原因に関し、内部を
冷媒が流通するロールによって冷却された銅帯の長さ方
向の応力分布を調べたところ、次のことがわかった。第
１図は上記冷却用ロールによって冷却された銅帯のライ
ン長さ方向の応力分布図であって、Ａは銅帯の冷却開始
点、Ｂはその冷却終了点、Ｃは急冷帯である。第１図に
示すように、冷却開始点Ａでは、銅帯の幅方向中央部の
応力が、幅方向の両端部に較べて平均的なラインテンシ
ョンよりも低く、冷却終了点付近では、逆に幅方向中央
部の応力が、幅方向の両端部に較べて平均的なラインテ
ンションよりも高くなシ、その結果、銅帯の幅方向の温
度分布は、第２図に示すように、銅帯の中央部と両端部
が高くなる知見を得た。The present inventors investigated the stress distribution in the longitudinal direction of a copper strip cooled by a roll through which a refrigerant flows, and found the following regarding the cause of the above-mentioned problem. FIG. 1 is a stress distribution diagram in the line length direction of the copper strip cooled by the cooling roll, where A is the cooling start point of the copper strip, B is the cooling end point, and C is the quenching zone. As shown in Figure 1, at the cooling start point A, the stress at the center of the copper strip in the width direction is lower than the average line tension compared to both widthwise ends, and on the contrary, near the cooling end point. The stress at the center in the width direction is higher than the average line tension compared to both ends in the width direction, and as a result, the temperature distribution in the width direction of the copper strip is as shown in Figure 2. It was found that the center and both ends of the curve were higher.
この発明は、上記知見に基づきなされたものであって、
内部に冷媒を流通させた複数個のロールの外周面に銅帯
を巻付けて接触させることによシ前記鋼帯を冷却する銅
帯の冷却方法において、前記鋼帯の前記各ロールごとの
接触前半においては、前記鋼帯の幅方向における中央部
を冷媒吹付けにより冷却し、前記鋼帯の前記各ロールご
との接触後半においては、前記鋼帯の幅方向における両
端部を冷媒吹付けによシ冷却することによって、前記鋼
帯の冷却温度分布を均一化したことに特徴を有するもの
である。This invention was made based on the above findings, and
In a method for cooling a copper strip, the steel strip is cooled by wrapping a copper strip around the outer circumferential surface of a plurality of rolls having a refrigerant flowing therein and bringing them into contact with each other, wherein the steel strip is brought into contact with each of the rolls. In the first half, the central part of the steel strip in the width direction is cooled by spraying a refrigerant, and in the second half of the contact between the rolls of the steel strip, both ends of the steel strip in the width direction are cooled by spraying a refrigerant. The steel strip is characterized in that cooling temperature distribution of the steel strip is made uniform by cooling the steel strip.
次に、この発明を図面に基いて説明する。Next, this invention will be explained based on the drawings.
第３図はこの発明方法の一実施態様を示す銅帯冷却ライ
ンの系統図、第４図はその一部の平面図である。第３図
および第４図において、１，２゜３は内部に冷媒として
の冷却用液体を流通させた冷却用のロール、４，５はテ
ンションロール、６は銅帯、７は各ロールごとの接触前
半において鋼帯６の幅方向中央部に冷媒ガスを吹付ける
ノズル群、８は各ロールごとの接触後半において鋼帯６
の幅方向両端部に冷媒ガスを吹付けるノズル群、９は昇
圧ブロワ、１０は冷媒ガスとしての炉内雰囲気ガスを冷
却するクーラ、１１は冷媒通路である。FIG. 3 is a system diagram of a copper strip cooling line showing one embodiment of the method of the present invention, and FIG. 4 is a plan view of a part thereof. In Figures 3 and 4, 1, 2° 3 are cooling rolls through which a cooling liquid as a refrigerant is circulated, 4 and 5 are tension rolls, 6 is a copper strip, and 7 is a cooling roll for each roll. Nozzle group 8 sprays refrigerant gas onto the widthwise central part of the steel strip 6 in the first half of the contact, and 8 is the nozzle group that sprays the steel strip 6 in the second half of the contact with each roll.
9 is a pressure booster blower, 10 is a cooler that cools the furnace atmosphere gas as refrigerant gas, and 11 is a refrigerant passage.
図示するように、鋼帯６の冷却開始点の板幅力 ３−
向中央部で″は、ライン方向の応力の低下即ちロール１
．２．３と鋼帯６との接触面圧が減少するのｔ防ぐため
、ロール１．２．３に巻付けられている鋼帯６の裏側か
ら、その幅方向中央部にノズル群７によって冷媒ガスを
吹付は冷却する。As shown in the figure, the strip width force at the cooling start point of the steel strip 6 at the center in the 3-direction direction is the decrease in the stress in the line direction, i.e.
．． In order to prevent the contact pressure between the steel strip 6 and the roll 1.2.3 from decreasing, a group of nozzles 7 injects refrigerant from the back side of the steel strip 6 wound around the roll 1.2.3 to the central part in the width direction. Blow the gas to cool it down.
また、鋼帯６の冷却終了点の板幅方向両端部では、ロー
ル１，２．３と鋼帯６との接触面圧を確保するため、ロ
ール１．２．３に巻付けられている鋼帯６の裏側から、
その幅方向両端部にノズル群８によって冷媒ガスを吹付
は冷却する。In addition, in order to ensure the contact surface pressure between the rolls 1, 2.3 and the steel strip 6 at both ends in the sheet width direction at the cooling end point of the steel strip 6, the steel wrapped around the roll 1.2.3 is From the back side of obi 6,
Refrigerant gas is sprayed onto both ends in the width direction by the nozzle group 8 for cooling.
その結果、第５図に示すように、鋼帯６をその幅方向に
ほぼ均一な温度分布で冷却することができた。As a result, as shown in FIG. 5, the steel strip 6 could be cooled with a substantially uniform temperature distribution in its width direction.
なお、ノズル７．８はスリットノズル、扇形ノズルのい
ずれでもよい。Note that the nozzle 7.8 may be either a slit nozzle or a fan-shaped nozzle.
まだ上記実施態様では、冷媒としてクーラ１０で冷却し
た炉内雰囲気ガスを使用したが、冷却水を使用してもよ
い。In the embodiment described above, the furnace atmosphere gas cooled by the cooler 10 is used as the refrigerant, but cooling water may also be used.
第６図は冷媒として冷却水を使用した場合の実施態様を
示す系統図、第７図はその一部の側面図、 ４−
である。図示するように内部に冷媒が流通するロール１
２ 、１３ 、１４ 、 ］ ５ 、１６の各々に、そ
の銅帯６′が接触する前半の鋼帯６の幅方向中央部にス
プレーノズル１７が、また鋼帯６が接触する後半の鋼帯
６の幅方向両端部にスプレーノズル１８が設けられ、前
記スプレーノズル１７と１８とによって、前述したよう
に鋼帯６を冷却することによシ、上記と同様の効果が得
られる。FIG. 6 is a system diagram showing an embodiment in which cooling water is used as the refrigerant, and FIG. 7 is a side view of a part thereof. As shown in the figure, a roll 1 in which a refrigerant flows
2 , 13 , 14 , ] 5 , 16, a spray nozzle 17 is installed at the center in the width direction of the first half steel strip 6 where the copper strip 6' comes into contact with the spray nozzle 17, and a spray nozzle 17 is placed at the center in the width direction of the first half steel strip 6 where the copper strip 6' comes into contact with the second half steel strip 6. Spray nozzles 18 are provided at both widthwise ends of the steel strip 6, and the spray nozzles 17 and 18 cool the steel strip 6 as described above, thereby achieving the same effect as described above.
以上の説明から明らかなように、この発明方法によれば
、内部に冷媒が流通するロールに銅帯を巻付けて前記鋼
帯を冷却するに当シ、銅帯をその板厚が薄い場合でも幅
方向に均一に冷却することができて１品質の優れた銅帯
を効率的に製造することができる工業１優れた効果がも
たらされる。As is clear from the above description, according to the method of the present invention, the steel strip can be cooled by wrapping the copper strip around a roll through which a refrigerant flows, even if the copper strip is thin. It is possible to cool uniformly in the width direction, and an excellent effect is brought about in the industry, where copper strips of excellent quality can be efficiently produced.
第１図は従来の冷却方法によった場合の応力分布図、第
２図は従来の冷却方法によった場合の銅帯の幅方向各部
における温度分布を示すグラフ、第３図はこの発明方法
の一実施態様を示す系統図、第４図はその一部平面図、
第５図はこの発明の方法によった場合の銅帯の幅方向各
部における温度分布を示すグラフ、第６図はこの発明方
法の他の実施態様を示す系統図、第７図はその一部側面
図である。
図面において、
］ 、２．３・・・ロール、 ４．５・・・テンション
ロール、６・・・鋼帯、 ７，８・・・ノズル
９・・・昇圧ブロック、 １０・・・クーラ、１１・・
・冷媒通路、
１２．１３’、１４，１５．１６・・・ロール、１７．
１８・・・スプレーノズル。
出願人 日本鋼管株式会社
代理人 潮 谷 奈津夫（他２名）
７−
第１図
第２図
８７ ”
９．■■■■■０゜
板巾（ｍｍ）
第６図Fig. 1 is a stress distribution diagram when using the conventional cooling method, Fig. 2 is a graph showing the temperature distribution at various parts in the width direction of the copper strip when using the conventional cooling method, and Fig. 3 is a graph showing the inventive method. A system diagram showing one embodiment of the system, FIG. 4 is a partial plan view thereof,
Fig. 5 is a graph showing the temperature distribution at various parts in the width direction of the copper strip when the method of the present invention is applied, Fig. 6 is a system diagram showing another embodiment of the method of the invention, and Fig. 7 is a part thereof. FIG. In the drawings, ], 2.3... Roll, 4.5... Tension roll, 6... Steel strip, 7, 8... Nozzle 9... Boosting block, 10... Cooler, 11・・・
- Refrigerant passage, 12.13', 14, 15.16...roll, 17.
18...Spray nozzle. Applicant Nippon Kokan Co., Ltd. Agent Natsuo Shioya (and 2 others) 7- Figure 1 Figure 2 87 ” 9.■■■■■0゜Plate Width (mm) Figure 6
Claims (1)
を巻付けて接触させることにより前記鋼帯を冷却する銅
帯の冷却方法において、前記鋼帯の前記各ロールごとの
接触前半においては、前記鋼帯の幅方向における中央部
を冷媒吹付けによシ冷却し、前記鋼帯の前記各ロールご
との接触後半においては、前記鋼帯の幅方向における両
端部を冷媒吹付けによシ冷却することによって、前記鋼
帯の冷却温度分布を均一化したことを特徴とする銅帯の
冷却方法。In a method for cooling a copper strip, the steel strip is cooled by wrapping a copper strip around the outer peripheral surface of a plurality of rolls having a refrigerant flowing therein and bringing them into contact with each other, in the first half of the contact between each of the rolls of the steel strip. The central part of the steel strip in the width direction is cooled by spraying a refrigerant, and in the latter half of the contact of the steel strip with each roll, both ends of the steel strip in the width direction are cooled by spraying a refrigerant. A method for cooling a copper strip, characterized in that cooling temperature distribution of the steel strip is made uniform by cooling the steel strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15995783A JPS6052530A (en) | 1983-08-31 | 1983-08-31 | Cooling method of steel strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15995783A JPS6052530A (en) | 1983-08-31 | 1983-08-31 | Cooling method of steel strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6052530A true JPS6052530A (en) | 1985-03-25 |
| JPS642171B2 JPS642171B2 (en) | 1989-01-13 |
Family
ID=15704862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15995783A Granted JPS6052530A (en) | 1983-08-31 | 1983-08-31 | Cooling method of steel strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6052530A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61243127A (en) * | 1985-04-18 | 1986-10-29 | Nippon Steel Corp | Cooling method for metallic strip |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02203281A (en) * | 1989-02-02 | 1990-08-13 | Kyoritsu Denshi Kogyo Kk | Tem cell |
-
1983
- 1983-08-31 JP JP15995783A patent/JPS6052530A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61243127A (en) * | 1985-04-18 | 1986-10-29 | Nippon Steel Corp | Cooling method for metallic strip |
| JPS6360815B2 (en) * | 1985-04-18 | 1988-11-25 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS642171B2 (en) | 1989-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2002172415A (en) | Method and apparatus for cooling thick steel plate | |
| JPS6356295B2 (en) | ||
| HUT72285A (en) | Method and apparatus for the cooling of hot-rolled metal strips and sheets | |
| JPS6052530A (en) | Cooling method of steel strip | |
| JPH06246334A (en) | Device for removing deposited oil on strip | |
| CA1196841A (en) | Method of cooling cold steel strip with cooling rolls | |
| KR950010160B1 (en) | Uniformity cooling device for hot strip | |
| JP3287254B2 (en) | Method and apparatus for cooling high-temperature steel sheet | |
| JP3747546B2 (en) | Method and apparatus for cooling high temperature steel sheet | |
| JPH089053B2 (en) | Hot rolling equipment line | |
| JPH11129015A (en) | Method of producing thin-scale steel sheet | |
| KR100373680B1 (en) | Lower Water Cooling System for Hot Rolled Plate Cooling_ | |
| JPH0763813B2 (en) | Method and apparatus for continuous casting of metal ribbon | |
| JPS6366884B2 (en) | ||
| JPH0474415B2 (en) | ||
| JPH1157836A (en) | Method of and device for cooling steel plate | |
| JP3173574B2 (en) | High temperature steel plate cooling system | |
| JPS6247086B2 (en) | ||
| JPH04279260A (en) | Nozzle for cooling roll in continuous casting | |
| JPH11709A (en) | Method for cooling steel sheet and device therefor | |
| JPH05177236A (en) | Cooling device for hot-rolled steel strip | |
| JPS6310019A (en) | Forced cooling device for thick steel plate | |
| JPS6234998Y2 (en) | ||
| JP2001087801A (en) | Rolling method for preventing rolling crack on billet in continuous casting | |
| JPH07290136A (en) | Method and device for cooling wide flange shape |