JPS6021108A - Production of differential thickness plate - Google Patents
Production of differential thickness plateInfo
- Publication number
- JPS6021108A JPS6021108A JP12944883A JP12944883A JPS6021108A JP S6021108 A JPS6021108 A JP S6021108A JP 12944883 A JP12944883 A JP 12944883A JP 12944883 A JP12944883 A JP 12944883A JP S6021108 A JPS6021108 A JP S6021108A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- sheets
- slab
- slabs
- plate
- 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
- 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】
この発明は、同−板肉で板厚に段差があり、しかも段差
は、一方の面のみに形成されていて、他方の面は平坦面
をなす金属板（以下、差厚プレートと云う）の製造方法
に関するものである。Detailed Description of the Invention The present invention provides a metal plate (hereinafter referred to as The present invention relates to a manufacturing method for a differential thickness plate (called a differential thickness plate).
差厚プレートは、第１図に示されるような形状をなすも
のであって、例えば、造船用材として。The differential thickness plate has a shape as shown in FIG. 1, and is used, for example, as a shipbuilding material.
横隔壁のステイフナのフェース材、横隔壁の幕板。Face material of transverse bulkhead stiffener, transverse bulkhead curtain plate.
ウェブフレームのフェースプレート等に使用されている
。Used for web frame face plates, etc.
差厚プレート１の一方の面Ａは、平坦面でないと、一方
の面Ａと合わせ材２との間に隙間があき。If one side A of the differential thickness plate 1 is not a flat surface, there will be a gap between the one side A and the mating material 2.
溶接上問題が生じる。Problems arise in welding.
従来、差厚プレートは、第２図に示されるように、上下
一対のワークロール３．３′によってスラブ４を所定位
置のところまで圧延することによって製造していた。Conventionally, differential thickness plates have been manufactured by rolling a slab 4 to a predetermined position by a pair of upper and lower work rolls 3.3', as shown in FIG.
上述した差厚プレートの製造方法において、前記一方の
面を平坦面とする方法としては１次のような方法が採ら
れていた。In the method for manufacturing the differential thickness plate described above, the following method has been adopted as a method for making the one surface a flat surface.
（１） 下ワークロール３′として、その径が、上ワー
クロール３の径に比して出来るだけ大きいものを使用す
る。(1) As the lower work roll 3', use one whose diameter is as large as possible compared to the diameter of the upper work roll 3.
（２） スラブ４の一方の面Ａのみを冷却して、一方の
面Ａと他方の面Ｂとの間に温度差をつけて圧延し、これ
によって変形抵抗の小さな他方の面Ｂのみに段差をつけ
る。(2) Only one side A of the slab 4 is cooled and rolled with a temperature difference between one side A and the other side B, so that there is a step only on the other side B where the deformation resistance is small. Attach.
（３）最終仕上げ温度を特定温度域で行った両面段付プ
レートを、ローラテーブルを通過させることによって１
．一方の面ｈｆ平坦にする。(3) By passing the double-sided stepped plate, which has undergone final finishing at a specific temperature range, through a roller table,
．． Make one side hf flat.
しかし、実際には設備上、操業上限界があり。However, in reality, there are limitations in terms of equipment and operation.
はとんど効果があがっていないのが現状である。The current situation is that it is not very effective.
この発明は、上述のような問題点を解決するためになさ
れたものであって。This invention was made to solve the above-mentioned problems.
剥離剤を介して２枚のスラブを相互に重ね合わせ、前記
重ね合わせた２枚のスラブに、圧延工程の終りに段差圧
延を含む圧延を施こし、圧延終了後、前記２枚のスラブ
を剥離し、かくして、一方の面が平坦で、他方の面に段
差が形成された差厚プレートを製造することに特徴を有
する。Two slabs are stacked on top of each other via a release agent, the two stacked slabs are subjected to rolling including step rolling at the end of the rolling process, and after the rolling is completed, the two slabs are peeled off. In this way, the present invention is characterized in that it produces a plate of different thickness, which is flat on one side and has a step formed on the other side.
ここで、前記段差圧延とは、板の両面に段差が形成され
るような圧延をいう。段差圧延の具体例としては、第１
図に示されるように、圧延途中で上下ワークロール３，
３′のロール間隔を変更する方法がある。第１図におい
ては、圧延途中からロール間隔を増加してスラブ４を素
通ししているが。Here, the step rolling refers to rolling in which steps are formed on both sides of the plate. As a specific example of step rolling, the first
As shown in the figure, during rolling, the upper and lower work rolls 3,
There is a method of changing the roll interval of 3'. In FIG. 1, the distance between the rolls is increased during rolling to allow the slab 4 to pass through.
この逆に圧延途中からロール間隔を減少させても良い。On the contrary, the distance between the rolls may be reduced during rolling.
また、別の段差圧延法として、スラブの一端から圧延を
開韓し、圧延途中からロールの回転方向を逆転する方法
等がおる。Further, as another step rolling method, there is a method in which rolling is started from one end of the slab and the rotation direction of the rolls is reversed halfway through rolling.
段差圧延は、２回以上のパスにわたっても良いが１通常
要求される差厚プレートの厚肉部と薄肉部との板厚差は
差程大きくないので１段差圧延は。Step rolling may be carried out over two or more passes, but one step rolling is preferred because the difference in thickness between the thick and thin portions of a differential thickness plate that is normally required is not that large.
圧延工程の終り、即ち、最終目標寸法（板長、板幅、板
厚）に近いところで行うことが好ましい。It is preferable to carry out the rolling process at the end of the rolling process, that is, near the final target dimensions (plate length, plate width, plate thickness).
通常は、圧延工程最終ノくスで段差圧延するだけで十分
である。即ち、スラブから通常の圧延によって差厚プレ
ートの厚内部の厚みで長さ方向全長にわたって一様の厚
さの板とした後、最終、＋スで上述した段差圧延を行う
ことが好ましい。なお１本発明においては、２枚のスラ
ブを用いて２枚の差厚プレートを同時に製造するから、
前記厚みは厚肉部の２倍の厚みとなる。Normally, it is sufficient to carry out step rolling at the end of the rolling process. That is, it is preferable that after the slab is made into a plate having a uniform thickness over the entire length in the lengthwise direction by the internal thickness of the differential thickness plate by normal rolling, the above-mentioned step rolling is performed in the final step. Note that in the present invention, two slabs are used to simultaneously manufacture two plates with different thicknesses.
The thickness is twice the thickness of the thick portion.
この発明の一実施態様を図面を参照し女から説明する。One embodiment of this invention will be explained from the woman's perspective with reference to the drawings.
まず、第３図（Ａ）に示されるように、一方のスラブ４
Ａの上面にアルギン酸ソーダ等の剥離剤を塗り。First, as shown in FIG. 3(A), one of the slabs 4
Apply a release agent such as sodium alginate to the top surface of A.
スラブ払と同形の他方のスラブ４Ｂを、スラブ体上に載
置する。この後、同図（Ｂ）に示されるように。The other slab 4B having the same shape as the slab removed is placed on the slab body. After this, as shown in the same figure (B).
スラブ４Ａ、４Ｂの接触外周部分を部分的または全周に
わたって溶接する。次に、この重ね合わせた２枚のスラ
ブ４Ａ、４Ｂに、同図（０）に示されるように、圧延工
程の終りに段差圧延を含む圧延を施こす。圧延終了後、
同図（Ｄ）に示されるように、２枚のスラブを剥離する
。これによって、一方の面が平坦で他方の面に段差が形
成された２枚の差厚プレート４’Ａ 、 ４’Ｂが同時
に製造できる。The contact outer peripheral portions of the slabs 4A and 4B are welded partially or over the entire circumference. Next, these two stacked slabs 4A and 4B are subjected to rolling including step rolling at the end of the rolling process, as shown in FIG. 4(0). After rolling,
As shown in Figure (D), the two slabs are separated. As a result, two plates 4'A and 4'B of different thickness, each having a flat surface on one side and a step on the other surface, can be manufactured at the same time.
次に、この発明の★施飼について説明する。Next, ★Administration of this invention will be explained.
短辺長さ１３５０ｒｎｊｎ、長辺長さ１７００ｍｍ−厚
さ１５０Ｍのスラブの上面に、アルギン酸ソーダを塗布
し、この上に、前記スラブと同形の別のスラブを載置し
、この重ね合わせた２枚のスラブを所定温度に加熱後、
第１表に示す圧延スケジュールに従って圧延した。Sodium alginate was applied to the top surface of a slab with a short side length of 1350rnjn, a long side length of 1700mm, and a thickness of 150M, and on top of this, another slab of the same shape as the above slab was placed, and the two sheets were stacked together. After heating the slab to the specified temperature,
Rolling was carried out according to the rolling schedule shown in Table 1.
第１表において、１１パスまでは通常の圧延であり、１
２パスが段差圧延であり１段差圧延としては前述した圧
延途中からロールを逆転する方法を採用した。In Table 1, up to 11 passes are normal rolling, and 1
The two passes were step rolling, and the above-mentioned method of reversing the rolls in the middle of rolling was adopted as the one-step rolling.
第１表
このような圧延を施こした後、２枚のスラブを剥離した
。この結果、厚肉部の肉厚が１０ｒｎｍ、薄肉部の肉厚
が１５ｍの差厚プレートが得られた。Table 1 After such rolling, the two slabs were peeled off. As a result, a differential thickness plate was obtained in which the thickness of the thick portion was 10 nm and the thickness of the thin portion was 15 m.
この差厚プレートの平坦度は、はぼ平面に近いものであ
った。The flatness of this differential thickness plate was almost flat.
以上述べたように、この発明によれば、一方の面がほぼ
完全な平面である差厚プレートを、同時に２枚製造する
ことができるといったきわめて有用な効果が、もたらさ
れる。As described above, according to the present invention, an extremely useful effect is brought about, such as being able to simultaneously manufacture two plates with different thicknesses each of which has a substantially completely flat surface.
第１図は、差厚プレートの斜視図、第２図は。
差厚プレートの製造法を示す説明図、第３図（Ａ）〜（
Ｄ）は、この発明の一実施態機の製造工程図である。
図面において。
ｌ・・・差厚プレート ２・・・合わせ材３．３′・・
・ワークロール ４・・・スラブ４Ａ、４Ｂ・・・スラ
ブ ４’Ａ、４’Ｂ・・・差厚プレート５・・・剥離剤
出願人 日本鋼管株式会社
代理人 潮 谷 奈津夫（他２名）
第１暦
日１
（Ａ）
（Ｃ）
（Ｂ）
Ｂ
（Ｄ）FIG. 1 is a perspective view of the differential thickness plate, and FIG. 2 is a perspective view of the differential thickness plate. Explanatory drawings showing the manufacturing method of differential thickness plates, Figures 3(A) to (
D) is a manufacturing process diagram of an embodiment of the present invention. In the drawing. l... Differential thickness plate 2... Laminating material 3.3'...
・Work roll 4...Slab 4A, 4B...Slab 4'A, 4'B...Differential thickness plate 5...Removal agent Applicant Nippon Kokan Co., Ltd. Agent Natsuo Shioya (and 2 others) ) 1st calendar day 1 (A) (C) (B) B (D)
Claims (1)
重ね合わせた２枚のスラブに、圧延工程の終りに段差圧
延を含む圧延を施こし、圧延終了後、前記２枚のスラブ
を剥離し、かくして、一方の面が平坦で、他方の面に段
差が形成された差厚プレートを製造することを特徴とす
る。差厚プレートの製造方法。Two slabs are stacked on top of each other via a release agent, the two stacked slabs are subjected to rolling including step rolling at the end of the rolling process, and after the rolling is completed, the two slabs are peeled off. In this way, the present invention is characterized in that it produces a differential thickness plate having one surface flat and the other surface having a step. Method for manufacturing differential thickness plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12944883A JPS6021108A (en) | 1983-07-18 | 1983-07-18 | Production of differential thickness plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12944883A JPS6021108A (en) | 1983-07-18 | 1983-07-18 | Production of differential thickness plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6021108A true JPS6021108A (en) | 1985-02-02 |
Family
ID=15009724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12944883A Pending JPS6021108A (en) | 1983-07-18 | 1983-07-18 | Production of differential thickness plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6021108A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4643424A (en) * | 1984-01-18 | 1987-02-17 | Keiji Nakajima | Ball for ballgames and manufacturing process thereof |
| JP2002316229A (en) * | 2001-04-20 | 2002-10-29 | Honda Motor Co Ltd | Vehicle body panel forming method |
| CN106513436A (en) * | 2016-12-02 | 2017-03-22 | 东北大学 | Rolling method for single-face periodically variable thickness plate strip materials |
| CN110657342A (en) * | 2018-06-28 | 2020-01-07 | 宝山钢铁股份有限公司 | Transverse thickness-variable wide common carbon-manganese steel plate and preparation method thereof |
| CN112222186A (en) * | 2020-09-18 | 2021-01-15 | 太原理工大学 | Device and method for producing variable thick plate with high precision |
-
1983
- 1983-07-18 JP JP12944883A patent/JPS6021108A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4643424A (en) * | 1984-01-18 | 1987-02-17 | Keiji Nakajima | Ball for ballgames and manufacturing process thereof |
| JP2002316229A (en) * | 2001-04-20 | 2002-10-29 | Honda Motor Co Ltd | Vehicle body panel forming method |
| CN106513436A (en) * | 2016-12-02 | 2017-03-22 | 东北大学 | Rolling method for single-face periodically variable thickness plate strip materials |
| CN110657342A (en) * | 2018-06-28 | 2020-01-07 | 宝山钢铁股份有限公司 | Transverse thickness-variable wide common carbon-manganese steel plate and preparation method thereof |
| CN110657342B (en) * | 2018-06-28 | 2022-09-20 | 宝山钢铁股份有限公司 | Transverse thickness-variable wide common carbon-manganese steel plate and preparation method thereof |
| CN112222186A (en) * | 2020-09-18 | 2021-01-15 | 太原理工大学 | Device and method for producing variable thick plate with high precision |
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