JPS59229209A - Method for patternless rolling - Google Patents
Method for patternless rollingInfo
- Publication number
- JPS59229209A JPS59229209A JP10240383A JP10240383A JPS59229209A JP S59229209 A JPS59229209 A JP S59229209A JP 10240383 A JP10240383 A JP 10240383A JP 10240383 A JP10240383 A JP 10240383A JP S59229209 A JPS59229209 A JP S59229209A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- roll
- grinding
- contact
- oil
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B28/00—Maintaining rolls or rolling equipment in effective condition
- B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
- B21B28/04—Maintaining rolls in effective condition, e.g. reconditioning while in use, e.g. polishing or grinding while the rolls are in their stands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/14—Guiding, positioning or aligning work
- B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass
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、パターンレス圧延方法に関するものである。[Detailed description of the invention] The present invention relates to a patternless rolling method.
圧延ロールを長時間使用すると、圧延材の幅に相当して
ロール表面が摩耗し、次の異なる広幅の圧延材を圧延す
れば、平坦度または厚み精度が悪化し、成品の品質を低
下させる。このため従来は、広幅材から狭幅材と一定の
パターンの、圧延スケジュールで圧延を行っている。こ
のように一定のパターンで一定時間（一定圧紙量）圧延
したロールは圧延機から抜き出し、ロール表面を研削し
た後、再び圧延機に組み込んでいた。この方法はロール
の抜出し、組込みに手間と時間がかかり、その都度圧延
ラインを停止しなければならない。If a rolling roll is used for a long time, the roll surface will wear out in proportion to the width of the rolled material, and when rolling a different wide rolled material next time, the flatness or thickness accuracy will deteriorate, reducing the quality of the finished product. For this reason, conventionally, rolling has been carried out according to a fixed rolling schedule from wide-width materials to narrow-width materials. The rolls rolled in a certain pattern for a certain amount of time (a certain amount of rolled paper) were taken out from the rolling mill, and after the roll surface was ground, they were put back into the rolling mill. This method requires time and effort to extract and assemble the rolls, and the rolling line must be stopped each time.
ロールを組み込んだままロール表面を研削する・方法も
提案されているが、ロールのプロフィルを測定する必要
があり、また、圧延材の非通板時に研削するために研削
時間に制約があった。A method has also been proposed in which the roll surface is ground while the roll is still installed, but it requires measuring the roll profile, and the grinding time is limited because the grinding is performed when the rolled material is not threaded.
又、圧延機の周辺には入口および出口ガイドがあり、ハ
ウジング内のスペースには制約がある。Additionally, there are inlet and outlet guides around the rolling mill, and space within the housing is limited.
非通板時の研削では材料エツジ部の局部摩耗を補償でき
ない。磁石押圧方式では磁石の目詰りが激しく、また、
研削面が荒くなる等特に、仕上圧延機では採用困難であ
る。Grinding when the material is not threaded cannot compensate for local wear on the material edges. With the magnet pressure method, the magnets are severely clogged, and
It is particularly difficult to use in finishing rolling mills because the grinding surface becomes rough.
一方近年、省エネルギおよび圧延能率の向上を図るため
に、連続鋳造ラインと連続熱間圧延ラインとを直結する
方式が採用されている。このような方式においては任意
の幅の圧延機をその都度圧延せざるを得ず、前述のよう
に一定のパターンのスケジュールで圧延することは不可
能となり、また、ロール組替の回数および時間が制約さ
れる。On the other hand, in recent years, in order to save energy and improve rolling efficiency, a system has been adopted in which a continuous casting line and a continuous hot rolling line are directly connected. In this type of system, it is necessary to use a rolling mill of an arbitrary width each time, making it impossible to roll according to a fixed pattern schedule as described above, and the number and time of roll changes are limited. be restricted.
このためパターンレス圧延を実施する上では、ロール・
プロフィルを常に一定に保つことが重要である。しかし
、ロール・プロフィルを一定に保つためには、オンライ
ンでロール全幅を研削する場合には、結局オフラインで
研削するのとあまり変りがない。特に圧延機エツジと当
接するロールの局部を正確に研削するためには、磁石の
研削面の精密な制御が必要である。しかし、ロールの回
転数が高くなると磁石に割れが生じたり、ロール表面に
ヂレタ・マークが発生し、結局、磁石の精密制御は困難
になるなどの問題点がある。For this reason, when performing patternless rolling, rolls and
It is important to keep the profile constant. However, in order to maintain a constant roll profile, grinding the full width of the roll online is no different from grinding it offline. In particular, precise control of the grinding surface of the magnet is required in order to accurately grind the local part of the roll that contacts the rolling mill edge. However, when the rotational speed of the roll increases, there are problems such as cracks in the magnet and dilatation marks on the roll surface, making it difficult to precisely control the magnet.
したがって、本発明の方法は、簡単かつ能率的な方法に
よってロールのプロフィルを常に一定に保ちパターンレ
ス圧延を可能にすることにある。Therefore, the method of the present invention consists in keeping the roll profile constant at all times and making patternless rolling possible by a simple and efficient method.
本発明の方法は、入口のサイド・ガイドに圧延油噴射ノ
ズルと研削磁石を取りイ」け、圧延時に圧延材エツジ部
と当接するロール表面に圧延油を噴射し、圧延材に接触
しない非通板部のロール表面を該圧延油を潤滑剤として
研削し、研削磁石に高圧水を噴射することを特徴として
いる。In the method of the present invention, a rolling oil injection nozzle and a grinding magnet are installed in the side guide of the inlet, and rolling oil is injected onto the roll surface that comes into contact with the edge of the rolled material during rolling. The roll surface of the plate part is ground using the rolling oil as a lubricant, and high-pressure water is injected onto the grinding magnet.
次に、図面を参照して本発明の方法について説明する。Next, the method of the present invention will be explained with reference to the drawings.
第１図は本発明の方法を適用した圧延機の平面図である
。第２図は第１図の側面図であり、第３図は第１図の部
分拡大図である。本発明の方法は、圧延機１の入口のサ
イド・ガイド２に圧延油噴射ノズル３、研削磁石４、高
圧水噴射ノズル５を取り付ける。FIG. 1 is a plan view of a rolling mill to which the method of the present invention is applied. 2 is a side view of FIG. 1, and FIG. 3 is a partially enlarged view of FIG. 1. In the method of the present invention, a rolling oil injection nozzle 3, a grinding magnet 4, and a high-pressure water injection nozzle 5 are attached to a side guide 2 at the entrance of a rolling mill 1.
ノズル３は、圧延材エツジ部と当接するロール表面に圧
延油を噴射し、局部摩耗を防止する。研削磁石４は、第
３図に最もよく示すように、サイド・ガイド２に回転自
在に支持され、モータ４１によって回転駆動される。研
削磁石４はロールに弾性的に押圧されることが好ましい
。ノズル５は研削磁石４に高圧水を噴射づる。The nozzle 3 injects rolling oil onto the roll surface that comes into contact with the edge of the rolled material to prevent local wear. As best shown in FIG. 3, the grinding magnet 4 is rotatably supported by the side guide 2 and rotationally driven by a motor 41. Preferably, the grinding magnet 4 is elastically pressed against the roll. The nozzle 5 sprays high pressure water onto the grinding magnet 4.
研削磁石４は、ノズル３から噴射される圧延油を潤滑剤
として非通板ｇｌｌのロール表面を研削づる。The grinding magnet 4 uses rolling oil injected from the nozzle 3 as a lubricant to grind the roll surface of the non-sheet-threaded gll.
ノズル５から噴射される高圧水は磁石４の目詰り
゛を防止する。High pressure water sprayed from nozzle 5 clogs magnet 4.
Prevent ゛.
連続圧延機の場合には、後段スタンドに硬質材料例えば
、１８ｃｒ−３ＭＯからなるロールを使用し、ロール摩
耗を極ツノ少なくすることが好ましい。In the case of a continuous rolling mill, it is preferable to use rolls made of a hard material, such as 18cr-3MO, in the rear stand to minimize roll wear.
−リーイド・ガイド２は圧延材の幅に合せて開閉自在の
自動調節機構を備えているものが好ましい。- The lead guide 2 is preferably equipped with an automatic adjustment mechanism that can be opened and closed according to the width of the rolled material.
研削磁石４は、例えばＧＣ６，ＧＣ４６等を使用するこ
とができる。磁石の押圧力は、１０〜５０ｋｇ程度が好
ましく、圧縮ばねまたはエア・シリンダ等を使用するこ
とができる。As the grinding magnet 4, for example, GC6, GC46, etc. can be used. The pressing force of the magnet is preferably about 10 to 50 kg, and a compression spring, an air cylinder, or the like can be used.
次に、第４図から第７図までを参照して本発明の方法の
効果について説明する。第４〜７図において、（Ａ）図
はロール・プロフィルを、また（Ｂ）図は圧延材の形状
をそれぞれ示す。第４図は圧延中ロールを研削または圧
延油を使用しないで圧延した場合を示す。特に圧延材エ
ツジと当接づ゛る部位が大きく摩耗し、このようなロー
ルで広幅材を圧延すれば圧延材は中のびおよび耳のびが
生じる。第５図は圧延材のエツジと当接するロール表面
に圧延油のみを噴射した場合を示す。圧延材エツジと当
接する部位の摩耗量は減少して均一な摩耗となるが、非
通板部のロール部位とに段差が生じその後の広幅材の圧
延材には耳のびが生じる。第６図は圧延材の非通板部の
ロール表面を磁石によってのみ研削した場合を示す。こ
の場合には、圧延材エツジと当接する部位の摩耗が残る
。Next, the effects of the method of the present invention will be explained with reference to FIGS. 4 to 7. In Figures 4 to 7, Figure (A) shows the roll profile, and Figure (B) shows the shape of the rolled material. FIG. 4 shows the case where rolling is performed without grinding the rolls or using rolling oil. Particularly, the parts that come into contact with the edges of the rolled material are subject to significant wear, and if such a roll is used to roll a wide material, the rolled material will undergo center elongation and edge elongation. FIG. 5 shows a case where only rolling oil is injected onto the roll surface that comes into contact with the edge of the rolled material. Although the amount of wear at the part that comes into contact with the edge of the rolled material is reduced and the wear becomes uniform, there is a difference in level between the part of the roll in the non-threaded part, and the subsequent rolled material of the wide width material has an edge. FIG. 6 shows a case where the roll surface of the non-threaded part of the rolled material is ground only by a magnet. In this case, wear remains at the portion that comes into contact with the edge of the rolled material.
したがって、圧延材にも中のびや耳のびが発生する。第
７図は本発明の方法を実施した場合を示す。Therefore, the rolled material also suffers from elongation and edge elongation. FIG. 7 shows the implementation of the method of the invention.
圧延材エツジと当接する部位は圧延油により摩耗は減少
し、さらに非通板部は研削されてロール、プロフィルは
平坦になり、圧延材の形状も良好になる。Wear is reduced by the rolling oil at the portions that come into contact with the edges of the rolled material, and the non-threaded portions are ground to flatten the roll and profile, resulting in a good shape of the rolled material.
第１図は本発明の方法を実施する装置の平面図。
第２図は第１図の側面図。第３図は第１図の部分拡大断
面図。第４図から第７図までは圧延ロール断面と圧延材
の形状との関係を示す説明図。
１：圧延機 ２：サイド・ガイド３：圧延油
噴射ノズル
４：々１削磁石 ５：高圧水噴射ノズル４１：
モータ
第４図 第５図
（Ａ） 、（Ａ）
（Ｂ） （Ｂ）
第７図 第７図
（Ａ）（Ａ）
（Ｂ） （Ｂ）FIG. 1 is a plan view of an apparatus for carrying out the method of the invention. FIG. 2 is a side view of FIG. 1. FIG. 3 is a partially enlarged sectional view of FIG. 1. FIG. 4 to FIG. 7 are explanatory diagrams showing the relationship between the cross section of the rolling roll and the shape of the rolled material. 1: Rolling mill 2: Side guide 3: Rolling oil injection nozzle 4: Magnet 5: High pressure water injection nozzle 41:
Motor Fig. 4 Fig. 5 (A) , (A) (B) (B) Fig. 7 Fig. 7 (A) (A) (B) (B)
Claims (1)
削磁石を取り付け、圧延時に圧延材エツジ部と当接する
ロール表面に圧延油を噴射し、圧延材に接触しない非通
板部のロール表面を該圧延油を潤滑剤として研削し、研
削磁石に高圧水を噴射することを特徴とするパターンレ
ス圧延方法。A rolling oil injection nozzle and a grinding magnet are attached to the side guide at the entrance of the rolling mill, and rolling oil is injected onto the roll surface that comes into contact with the edge of the rolled material during rolling. A patternless rolling method characterized in that grinding is performed using the rolling oil as a lubricant and high-pressure water is injected onto the grinding magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10240383A JPS59229209A (en) | 1983-06-08 | 1983-06-08 | Method for patternless rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10240383A JPS59229209A (en) | 1983-06-08 | 1983-06-08 | Method for patternless rolling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59229209A true JPS59229209A (en) | 1984-12-22 |
Family
ID=14326475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10240383A Pending JPS59229209A (en) | 1983-06-08 | 1983-06-08 | Method for patternless rolling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59229209A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61206502A (en) * | 1985-03-08 | 1986-09-12 | Nisshin Steel Co Ltd | Control method for different peripheral-speed rolling |
| EP0228360A2 (en) * | 1985-12-20 | 1987-07-08 | VOEST-ALPINE Aktiengesellschaft | Roll gap lubrication in a rolling mill stand, in particular in a hot strip mill |
| KR100854372B1 (en) * | 2006-12-27 | 2008-09-02 | 주식회사 포스코 | Oil uniformity spraying device |
| EP2666558A1 (en) * | 2012-05-21 | 2013-11-27 | Siemens Aktiengesellschaft | Lateral guide for a mill train |
-
1983
- 1983-06-08 JP JP10240383A patent/JPS59229209A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61206502A (en) * | 1985-03-08 | 1986-09-12 | Nisshin Steel Co Ltd | Control method for different peripheral-speed rolling |
| EP0228360A2 (en) * | 1985-12-20 | 1987-07-08 | VOEST-ALPINE Aktiengesellschaft | Roll gap lubrication in a rolling mill stand, in particular in a hot strip mill |
| EP0228360A3 (en) * | 1985-12-20 | 1988-09-14 | VOEST-ALPINE Aktiengesellschaft | Roll gap lubrication in a rolling mill stand, in particular in a hot strip mill |
| KR100854372B1 (en) * | 2006-12-27 | 2008-09-02 | 주식회사 포스코 | Oil uniformity spraying device |
| EP2666558A1 (en) * | 2012-05-21 | 2013-11-27 | Siemens Aktiengesellschaft | Lateral guide for a mill train |
| WO2013174602A1 (en) | 2012-05-21 | 2013-11-28 | Siemens Aktiengesellschaft | Side guide for a rolling train |
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