JPS5861901A - Rolling method - Google Patents
Rolling methodInfo
- Publication number
- JPS5861901A JPS5861901A JP15923681A JP15923681A JPS5861901A JP S5861901 A JPS5861901 A JP S5861901A JP 15923681 A JP15923681 A JP 15923681A JP 15923681 A JP15923681 A JP 15923681A JP S5861901 A JPS5861901 A JP S5861901A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- roll
- slope
- pass
- rolled
- 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.)
- Pending
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000035929 gnawing Effects 0.000 abstract 3
- 230000007423 decrease Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
- B21B1/026—Rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、圧延エネルギーを減少させると同時に噛み込
み量を大きくし得るようにした圧延方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rolling method capable of reducing rolling energy and increasing the amount of biting at the same time.
第1図に示すごとく、径D1の小径の作業ロール(a)
で圧延材(S)をHからみに圧延した場合の圧延エネル
ギーは、第2図に示すごとく、径D2の大径の作業ロー
ル(α1で同様に圧延した場合の圧延エネルギーより小
さい。これは圧延材(S)と作 □業ロールの接触弧長
1.がt2より小さいためである。しかし、大径の作業
ロール(d)の場合、噛み込み量ΔI(−11−Aを大
きび取ることができるが、小径の作業ロールfa)の場
合は、噛み込み量を大きく取ると、噛み込み時に作業ロ
ールが空転し、圧延が不可能にな2てしまう。As shown in Figure 1, a small diameter work roll (a) with a diameter of D1
As shown in Fig. 2, the rolling energy when the rolled material (S) is rolled in the H direction is smaller than the rolling energy when the rolled material (S) is rolled in the same manner using a large-diameter work roll (α1) with a diameter of D2. This is because the contact arc length 1. between the material (S) and the work roll is smaller than t2.However, in the case of a large diameter work roll (d), the biting amount ΔI (-11-A must be increased). However, in the case of a small-diameter work roll fa), if the biting amount is large, the work roll will idle during biting, making rolling impossible.
本発明の目的は圧延エネルギーが小さく、シかも噛み込
み社を大きく取り得るようにした圧延方法を提薄い部分
を噛み込まずことにより、勾配のない場合に噛み込めな
いような板厚の板を圧延することを特徴とするものであ
る。The purpose of the present invention is to provide a rolling method that requires less rolling energy and can increase the amount of traction, thereby preventing the thinner parts from being erected, thereby producing a plate with a thickness that would not be latched when there is no slope. It is characterized by rolling.
以ド、本発明の実施例を図面を参照しつつ説明する。Hereinafter, embodiments of the present invention will be described with reference to the drawings.
第3図(イ)〜(−)中(1)は小径の作業ロール、(
2)は控ロ −ルである。圧延に際しては1パス目の圧
延材+S)の噛み込みは通常の圧延と同様に行ない、第
3図(イ)に示すごとく所要の圧丁量の圧延を行うが、
圧延が進行して圧延材(S)の後端が作業ロール(1)
に近付いたら、尻り抜は前に第3図(ロ)に示すごとく
下の控ロ −ル及び作業ロールを急速に上昇させると共
に上の控ロール及び作業ロールを急速に下降せしめ、第
6図Hに示すごとく圧延材(Slに、後端側に行くほど
板厚が薄い勾配を付する。In Figure 3 (a) to (-), (1) is a small diameter work roll, (
2) is a backup roll. During rolling, biting of the rolled material +S) in the first pass is carried out in the same manner as in normal rolling, and rolling is performed to the required amount of cutting as shown in Fig. 3 (a).
As rolling progresses, the rear end of the rolled material (S) becomes the work roll (1)
When approaching the bottom, the lower backing roll and work roll are rapidly raised as shown in Figure 3 (b), and the upper backing roll and work roll are rapidly lowered, as shown in Figure 6 (b). As shown in H, a gradient is applied to the rolled material (Sl) so that the plate thickness becomes thinner toward the rear end side.
2パス目は第3図に)に示すごとく、作業ロール(1)
(11の間隔を所定の間隙に変更し、勾配を付した側
を先頭にして圧延を行ない、尻り抜は前に1パス目と同
様ロールを急速圧下し、後端側に勾配を付する。In the second pass, as shown in Figure 3), the work roll (1)
(Change the interval in step 11 to a predetermined gap, roll with the sloped side at the beginning, and roll down the roll quickly as in the first pass for bottom removal, and apply a slope to the rear end side. .
以下同様にしてリバース圧延を行うが、仕上圧延の場合
は勾配を付さない。Thereafter, reverse rolling is performed in the same manner, but no slope is applied in the case of finish rolling.
上述したごとく尻り抜は前に圧延材に勾配を付すること
により、小径ロールでも噛み込み楡を大きく取ることが
でき、しかも小径ロールな9で圧延エネルギーも小さい
。As mentioned above, by applying a slope to the rolled material before removing the tail, it is possible to obtain a large biting edge even with a small-diameter roll, and the rolling energy is also small with the small-diameter roll 9.
なお、本発明の実施例においては、勾配を付するときに
下のロールを上昇させると共に上のロールを下降させる
場合について説明したが、下のロールを急速上昇させる
たけでも、あるいは上のロールを急速下降させるだけで
もよいこ種々変更を加え得ること、等は勿論である。In addition, in the embodiments of the present invention, the case where the lower roll is raised and the upper roll is lowered when applying a slope has been described, but it is also possible to raise the lower roll rapidly or lower the upper roll. It goes without saying that various changes can be made, such as simply descending rapidly.
本発明の圧延方法によれば、圧延エネルギーが少なくて
よいから省エネルギーに貢献し、噛み込み量を大きく取
ることができるから生産能率が向上する、等種々の優れ
た効果を奏し得る。。According to the rolling method of the present invention, various excellent effects can be achieved, such as contributing to energy saving because less rolling energy is required, and improving production efficiency because the amount of biting can be increased. .
第1図及び第2図は通常の圧延方法の説明図、第3図(
イトに)は本発明の圧延方法の説明図である。
図中(1)は作業ロール、(2)は控ロール、(S)は
圧延材を示す。
特許出願人
石川島播磨重工業株式会社
第1図
第2図
゛ lFigures 1 and 2 are explanatory diagrams of the normal rolling method, and Figure 3 (
Fig. 1) is an explanatory diagram of the rolling method of the present invention. In the figure, (1) shows a work roll, (2) shows a backing roll, and (S) shows a rolled material. Patent applicant Ishikawajima Harima Heavy Industries Co., Ltd. Figure 1 Figure 2
Claims (1)
向って板厚の薄くなる勾配を付すると共に、進行方向の
逆である次パス噛み込みにおいてこの薄い部分を噛み込
まずことにより、勾配のない場合に噛み込めないような
板厚の板を圧延することを特徴とする圧延方法。1) Add a slope to the rear end of the rolled material in the direction of travel, where the plate thickness becomes thinner toward the upstream side with respect to the direction of travel, and avoid biting this thin part in the next pass that is opposite to the direction of travel. A rolling method characterized by rolling a plate of such thickness that it cannot be rolled if there is no slope.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15923681A JPS5861901A (en) | 1981-10-06 | 1981-10-06 | Rolling method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15923681A JPS5861901A (en) | 1981-10-06 | 1981-10-06 | Rolling method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5861901A true JPS5861901A (en) | 1983-04-13 |
Family
ID=15689312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15923681A Pending JPS5861901A (en) | 1981-10-06 | 1981-10-06 | Rolling method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5861901A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4593551A (en) * | 1983-09-16 | 1986-06-10 | Aluminum Company Of America | Rolling procedures for alligator defect elimination |
JP2009202185A (en) * | 2008-02-27 | 2009-09-10 | Jfe Steel Corp | Rolling method using reversible rolling mill, and manufacturing method for hot-rolled steel strip |
JP2009274108A (en) * | 2008-05-15 | 2009-11-26 | Mitsubishi Alum Co Ltd | Method of manufacturing rolled material |
CN105436210A (en) * | 2015-12-11 | 2016-03-30 | 东北大学 | Thickness-changeable rolling method for heavy and medium plate mill |
-
1981
- 1981-10-06 JP JP15923681A patent/JPS5861901A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4593551A (en) * | 1983-09-16 | 1986-06-10 | Aluminum Company Of America | Rolling procedures for alligator defect elimination |
JP2009202185A (en) * | 2008-02-27 | 2009-09-10 | Jfe Steel Corp | Rolling method using reversible rolling mill, and manufacturing method for hot-rolled steel strip |
JP2009274108A (en) * | 2008-05-15 | 2009-11-26 | Mitsubishi Alum Co Ltd | Method of manufacturing rolled material |
CN105436210A (en) * | 2015-12-11 | 2016-03-30 | 东北大学 | Thickness-changeable rolling method for heavy and medium plate mill |
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