JPH044902A - Hot rolling method of h-shape steel - Google Patents

Hot rolling method of h-shape steel

Info

Publication number
JPH044902A
JPH044902A JP10534390A JP10534390A JPH044902A JP H044902 A JPH044902 A JP H044902A JP 10534390 A JP10534390 A JP 10534390A JP 10534390 A JP10534390 A JP 10534390A JP H044902 A JPH044902 A JP H044902A
Authority
JP
Japan
Prior art keywords
web
flange
thickness
roll
shape
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
Application number
JP10534390A
Other languages
Japanese (ja)
Inventor
Tsuneo Seto
瀬戸 恒雄
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP10534390A priority Critical patent/JPH044902A/en
Publication of JPH044902A publication Critical patent/JPH044902A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-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
    • B21B1/08Metal-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 structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/088H- or I-sections
    • B21B1/0886H- or I-sections using variable-width rolls

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Abstract

PURPOSE:To roll H-shape steel with the section of high rigidity by properly adjusting the three elements of the shape of horizontal roll, shrinkage and thickness of web and rolling reduction for flange. CONSTITUTION:Using horizontal rolls 6B which the position in the axial direction of roll is variable and which is divided into at least two for a finishing universal mill, the thickness of flange is reduced and simultaneously the height of the web 11w is compressed while the web 11b of an intermediate rolled stock 11 to be rolled which is restrained by setting the dimension of the outside width smaller than the dimension of the outside width of horizontal rolls 4b of a roughing universal mill 4 and while raising up the angle of the flange 11f with vertical rolls 6A. The H-shape steel with the section of high rigidity is obtained by thickening the vicinity of the joint part R of the flange with the web according to the compressing quantity of web height, rolling reduction balance of flange thickness and web thickness and shape of roll at this time.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、I(形鋼の熱間圧延方法に関する。[Detailed description of the invention] <Industrial application field> The present invention relates to a method for hot rolling I (section steel).

〈従来の技術〉 従来のH形鋼の熱間圧延方式は、通常第8図に示すよう
に、加熱炉1で所定の温度に加熱されたビームブランク
などの粗形綱片10がまず粗圧延機2で粗圧延されてか
らトランスファ3に送られ、ついで粗ユニバーサル圧延
機4とエツジヤ圧延機5で複数パス圧延成形されてほぼ
所定の寸法の中間圧延材11とされた後、仕上ユニバー
サル圧延機6で仕上圧延されて最終の寸法・形状を有す
る1(形鋼12に製造される。なお、エツジヤ圧延機5
の下流にさらに別の粗ユニバーサル圧延機を設ける場合
もある。
<Prior art> In the conventional hot rolling method for H-beam steel, as shown in FIG. After being roughly rolled in a mill 2, it is sent to a transfer 3, and then rolled in multiple passes in a rough universal rolling mill 4 and an edger rolling mill 5 to form an intermediate rolled material 11 with approximately predetermined dimensions, and then transferred to a finishing universal rolling mill. Finish rolling is performed in step 6 to produce 1 (shape steel 12) having the final dimensions and shape.
In some cases, another rough universal rolling mill is installed downstream of the rolling mill.

その際、粗ユニバーサル圧延4!g4で圧延されるいら
れる中間圧延材11の形状は、第9図(alに示イよう
に、垂直ロール4aと水平ロール4bとで圧下されてフ
ランジ部11fがいずれも外開きの形状とされるから、
仕上ユニバーサル圧延R6において、第9図(b)に示
すように上下一対の水平ロール6aと左右一対の垂直ロ
ール6bを用いて仕上圧延される際に、フランジ部11
fが垂直ロール6bによって垂直な形状に圧下される。
At that time, rough universal rolling 4! The shape of the intermediate rolled material 11 that is rolled at g4 is as shown in FIG. from,
In finish universal rolling R6, as shown in FIG. 9(b), when finish rolling is performed using a pair of upper and lower horizontal rolls 6a and a pair of left and right vertical rolls 6b, the flange portion 11
f is rolled down into a vertical shape by a vertical roll 6b.

このよ−うに圧延される製品寸法が決まれば、仕上ユニ
バーサル圧延機6のロール寸法とそれ以前の圧延機のロ
ール寸法が決まることになる。
Once the dimensions of the product to be rolled are determined in this way, the dimensions of the rolls of the finishing universal rolling mill 6 and the rolls of the previous rolling mills are determined.

ところで、■1形鋼は同一の呼称シリーズにおいてフラ
ンジ厚みは多サイズあり、例えばウェブ高さ;600m
Xフランジ輻;300m5についてみると、フランジ厚
みの最大のものと最小のものとの差は通常16閣前後で
あり、またウェブ高さはその2倍の32fiも変化する
のである。
By the way, ■1 section steel has many sizes of flange thickness in the same designation series, for example, web height: 600 m.
Regarding the X flange radius of 300 m5, the difference between the maximum and minimum flange thickness is usually around 16 mm, and the web height changes by 32 fi, which is twice that.

そこで、このような従来の圧延方法におけるウェブ高さ
の違いを数群する手段としては、例えば特開平2−60
01号公報に開示されているように、粗ユニバーサル圧
延段階までは通常のユニバーサル圧延を行い、その後仕
上ユニバーサル圧延段階においてロール軸方向の位置を
変化できる少なくとも2つの分割ロールを有する水平ロ
ール側面と垂直ロールによりフランジの厚さ圧下を行う
と同時にウェブ高さの圧下を行ういわゆるウェブ高さ外
法一定H形鋼の製造方法が開発され、実用化されている
Therefore, as a means to classify the differences in web height in several groups in such conventional rolling methods, for example, Japanese Patent Application Laid-Open No. 2-60
As disclosed in Publication No. 01, normal universal rolling is performed up to the rough universal rolling stage, and then, in the finishing universal rolling stage, a horizontal roll having at least two split rolls whose position in the roll axis direction can be changed is a horizontal roll with a side surface and a vertical roll. A method for manufacturing a so-called H-beam steel with constant web height has been developed and put into practical use, in which the thickness of the flange is reduced using rolls, and the web height is simultaneously reduced.

一方、最近において、高い曲げ剛性を有するH形鋼の要
請が高まっている。このH形鋼の曲げ剛性について少し
詳しく説明すると、第10図に示すように、フランジ幅
がBでフランジ厚みがT、ウェブ高さがHでその厚みか
もなるH形鋼12をl形の形状で使用するときの曲げ剛
性1は、下記(11式%式% Sl ;フランジ断面積 Sziウェブつけ根部Rの断面積 に+;x軸からフランジ中心までの距離に、Hx軸から
ウェブつけ根部R重心までの距離 1、Bx軸まわりの断面二次モーメントそこで、第11
図(a)に示すように、フランジ幅:B、フランジ厚み
;T、ウェブ高さ;Hでウェブ厚みがLAで一様とされ
、かつその断面積がSAとされるH形鋼12Aと、第1
1図(b)に示すようにウェブ中央部の厚みがts  
(ただし1A>1.)でそのつけ根部が肉厚とされ、そ
の断面積S、がH形1112Aの断面積S、と等しいと
されるH形[12Bとについて、それらの曲げ剛性[a
、Imを比較してみると、ウェブの中央部が薄肉でつけ
根部が増肉されたH形鋼12Bの曲げ剛性1.の方が大
きいことがわかり、したがって重量が同一のH形鋼であ
っても高強度のものが得られることになることが知られ
ている。
On the other hand, recently, there has been an increasing demand for H-section steel having high bending rigidity. To explain the bending rigidity of this H-section steel in a little more detail, as shown in Fig. 10, an H-section steel 12 with a flange width of B, a flange thickness of T, and a web height of H and thickness is L-shaped. The bending rigidity 1 when used in is as follows (11 Formula % Formula % Sl ; flange cross-sectional area Szi + cross-sectional area of web root R; distance from x-axis to flange center, Hx-axis to web root R) The distance to the center of gravity is 1, the moment of inertia around the Bx axis is
As shown in Figure (a), an H-section steel 12A with flange width: B, flange thickness: T, web height: H, the web thickness is uniform at LA, and the cross-sectional area is SA; 1st
As shown in Figure 1 (b), the thickness of the central part of the web is ts
(However, 1A > 1.), the root part is thick, and its cross-sectional area S is equal to the cross-sectional area S of the H-shape 1112A.
, Im are compared, the bending rigidity of the H-section steel 12B, which has a thinner web at the center and thicker at the base, is 1. Therefore, it is known that even if the weight of the H-section steel is the same, a high-strength steel can be obtained.

〈発明が解決しようとする!!l!題〉しかしながら、
上記の特開平2−6001号のウェブ高さ外法一定H形
鋼の製造手段を用いて単にウェブ高さの縮小圧下を施す
だけでは、上記したウェブつけ根部の形状を制御してそ
の肉厚を厚くした曲げ剛性の高いH形鋼を製造すること
ができないという問題があった。
<Invention tries to solve! ! l! Subject: However,
It is not possible to simply reduce the web height using the manufacturing method of H-beam steel with a constant web height in JP-A No. 2-6001 mentioned above. There was a problem in that it was not possible to manufacture H-beam steel with high bending rigidity.

本発明は、上記のような課題を解決した11形鋼の熱間
圧延方法を提供することを目的とする。
An object of the present invention is to provide a method for hot rolling steel section 11 that solves the above-mentioned problems.

<!!l!題を解決するための手段〉 本発明は、H形鋼を熱間圧延するに際し、粗ユニバーサ
ルミルでの粗圧延段階で粗形鋼片のウェブ厚、フランジ
厚、フランジ幅を減少させ、その後の仕上ユニバーサル
ミルでの仕上圧延段階においてロール軸方向の位置を可
変にし得る少なくとも2つに分割された水平ロールの外
幅寸法を粗圧延に用いる粗ユニバーサルミルの水平ロー
ルの外幅寸法より小さく設定し、前記仕上ユニバーサル
ミルの水平ロールと垂直ロールにより2ランジ厚さを圧
下しながら角度起こしをすると同時にウェブ高さの圧下
を行ってウェブ高さの圧縮量とフランジ厚、ウェブ厚の
圧下量バランスおよびロール形状によってウェブとフラ
ンジのつけ根部を増肉することを特徴とするH形鋼の熱
間圧延方法である。
<! ! l! Means for Solving the Problem> The present invention reduces the web thickness, flange thickness, and flange width of a rough-shaped steel piece during the rough rolling stage in a rough universal mill when hot rolling an H-section steel, and then In the finish rolling stage of the finishing universal mill, the outer width dimension of a horizontal roll divided into at least two parts whose position in the roll axis direction can be made variable is set smaller than the outer width dimension of the horizontal roll of the roughing universal mill used for rough rolling. The horizontal roll and vertical roll of the finishing universal mill are used to reduce the thickness of two langes and raise the angle, and at the same time reduce the web height to balance the amount of compression of the web height, the flange thickness, and the amount of reduction of the web thickness. This is a hot rolling method for H-section steel, which is characterized by increasing the thickness of the web and the base of the flange depending on the roll shape.

〈作 用〉 本発明によれば、仕上ユニパー号ル圧延機を用いてウェ
ブ高さを縮小することにより外法一定H形鋼を製造する
際に、水平ロールの形状とウェブの縮小量と厚み、さら
にフランジの圧下量の3要素を適正に調整することにす
るので、高剛性断面を有するH形鋼を圧延することがで
きる。
<Function> According to the present invention, when manufacturing H-beam steel with a constant outer diameter by reducing the web height using a finishing Uniper roll mill, the shape of the horizontal roll, the amount of reduction of the web, and the thickness Furthermore, since the three elements of the reduction amount of the flange are appropriately adjusted, it is possible to roll an H-section steel having a highly rigid cross section.

〈実施例〉 以下に、本発明の実施例について、図面を参照して詳し
く説明する。
<Examples> Examples of the present invention will be described in detail below with reference to the drawings.

第1図(a)に示すように、仕上ユニバーサル圧延11
16にはロール軸方向の位置を可変にし得る少なくとも
2つに分割された水平ロール6Bを用いるようにして、
その外幅寸法を粗ユニバーサルミル4の水平ロール4b
の外幅寸法より小さく設定して圧延される中間圧延材1
1のウェブl1wを拘束しながら、第1図(b)に示す
ように、垂直ロール6△でフランジllfの角度起こし
をしながらその厚みを圧下し、同時にウェブl1wの高
さを圧縮する。
As shown in FIG. 1(a), finishing universal rolling 11
16 is a horizontal roll 6B divided into at least two parts whose position in the roll axis direction can be varied,
The outer width dimension of the horizontal roll 4b of the rough universal mill 4
Intermediate rolled material 1 that is rolled with the outer width dimension set smaller than that of
While restraining the web l1w of No. 1, as shown in FIG. 1(b), the thickness of the flange Ilf is reduced while raising the angle of the flange Ilf with the vertical roll 6Δ, and at the same time the height of the web I1w is compressed.

このとき、ウェブ高さの圧縮量とフランジ厚、ウェブ厚
の圧下量バランスおよびロール形状によってウェブとフ
ランジのつけ根部を増肉する。
At this time, the thickness of the base of the web and flange is increased depending on the balance between the compression amount of the web height, the flange thickness, the reduction amount of the web thickness, and the roll shape.

なお、その際、ウェブの縮小された部分のすべてが圧延
材の長手方向の伸びとなればよいが、実際にはウェブと
フランジの圧下比のバランスを変えても1パス圧延で長
手方向の伸びになるのは、第2図に示すように60%程
度が限度であり、残りはメタル70−によりフランジま
たはウェブの部分的増肉あるいはフランジ幅の拡大とな
る。この断面内の増肉分を積極的に活用して、フランジ
とウェブのつけ根部R近傍を増肉することにより、高剛
性断面のH形鋼を得ることができるのが、本発明の基本
的な考えである。
In this case, it is sufficient if all of the reduced part of the web becomes elongated in the longitudinal direction of the rolled material, but in reality, even if the balance of the reduction ratio between the web and the flange is changed, the elongation in the longitudinal direction can be achieved in one pass of rolling. As shown in FIG. 2, the limit is about 60%, and the rest consists of partially increasing the thickness of the flange or web or expanding the flange width by using the metal 70-. The basic principle of the present invention is that an H-section steel with a highly rigid cross section can be obtained by actively utilizing this increased thickness in the cross section and increasing the thickness near the root R of the flange and web. This is a great idea.

そこで、H形鋼の断面サイズが、ウェブ高さ:60(]
mXフランジ幅;200mxウェブ厚み;12閤×フラ
ンジ厚み;25m11の製品サイズを製造する際に、第
3図(a)に示すように粗ユニバーサル圧延機4の出側
での中間圧延材11の各断面形状をWl ;586 m
、  h、  ;19B 閣、  R部  ;18gn
、  t+  ;12.2閣、  f+  ;25.8
−2θ;51とし、また、第3図(b)に示すように、
仕上ユニバーサル圧延l116の出側でのH形鋼12の
各断面形状を、Wl;554町ht  ;202m  
Rg  ;15m、  tt  ;12.Om  fz
; 25.0閤 θ;01とした。
Therefore, the cross-sectional size of the H-shaped steel is web height: 60 (]
m x flange width; 200 m x web thickness; 12 rolls x flange thickness; 25 m When manufacturing a product size of 11, each of the intermediate rolled materials 11 on the exit side of the rough universal rolling mill 4 is The cross-sectional shape is Wl; 586 m
, h, ;19B cabinet, R section;18gn
, t+ ; 12.2 kaku, f+ ; 25.8
−2θ; 51, and as shown in FIG. 3(b),
The cross-sectional shape of the H-shaped steel 12 at the exit side of the finishing universal rolling l116 is Wl; 554 mm ht; 202 m
Rg; 15m, tt; 12. Om fz
; 25.0 yen θ; 01.

そして、■ロール形状を変えた場合、■ウェブ高さ縮小
量を変えた場合、■フランジ圧下量を変えた場合のそれ
ぞれについて実験を行い、ウェブつけ根部R近傍の増内
部の変化状況を副べた。
Then, experiments were conducted for each of the following cases: ■ changing the roll shape, ■ changing the amount of web height reduction, and ■ changing the amount of flange reduction. .

まず、ロール形状については、第4図(alに示すよう
なロール面の正常な場合と、第4図(b)に示すように
ウェブつけ根部Rを圧下する部分を断面積で31だけ予
め削った場合の2通りについて、ほかの圧下条件を同一
にした状態で圧延した。
First, regarding the roll shape, the roll surface is normal as shown in Figure 4 (al), and the part where the web root R is rolled down is pre-shaving by 31 in cross-sectional area as shown in Figure 4 (b). The two cases were rolled with other rolling reduction conditions being the same.

そのときの仕上がり製品のR部近傍の増肉分に相当する
断面積は、ウェブ高さの縮小ISを第5図に示すように
ΔhXt、とすると、第411D(a)のロール形状の
場合は、 St  =0.3  (Δh x t 、 ) / 2
 −−(31また第4図Φ〕のロール形状の場合は、S
t’ =0.6  (△h x t + ) / 2−
(41となった。これら両者の差分の大半はウェブ厚み
全体の増肉となって現れており、水平ロール6Aの圧延
荷重にもその差が認められた。このときの両者の差(S
! ’  St )はロール形状の断面積差S1とほぼ
等しいものである。
At that time, the cross-sectional area corresponding to the increased thickness near the R portion of the finished product is, assuming that the web height reduction IS is ΔhXt as shown in FIG. , St =0.3 (Δh x t, ) / 2
--In the case of the roll shape of (31 and Fig. 4 Φ), S
t' = 0.6 (△h x t + ) / 2-
(It became 41. Most of the difference between these two appeared as an increase in the overall web thickness, and the difference was also recognized in the rolling load of the horizontal roll 6A. At this time, the difference between the two (S
! 'St) is approximately equal to the cross-sectional area difference S1 of the roll shape.

ついで、第4図(b)でのロール形状の水平ロール6A
’を用いてウェブ縮小量を変えたケースについて、最大
縮小量Sとの割合すなわち縮小率αとR部での増肉割合
との関係を第6図に示した。この図から縮小率が大きい
ほど、増肉分が増加することがわかる。
Next, roll-shaped horizontal roll 6A in FIG. 4(b)
FIG. 6 shows the relationship between the ratio of the maximum reduction amount S, that is, the reduction ratio α, and the thickness increase ratio at the R portion in the case where the amount of web reduction is changed using '. From this figure, it can be seen that the larger the reduction ratio, the more the thickness increases.

さらに、同一縮小率の場合のウェブ圧下量を同一として
フランジ圧下量を変化させたときの増肉割合を第7図に
示した。この図かられかるように、フランジとウェブの
圧下比の最適点が存在することを示しており、またフラ
ンジ圧下量がR部近傍の増肉に影響していることを表し
ている。
Further, FIG. 7 shows the rate of increase in thickness when the web reduction amount is the same and the flange reduction amount is changed at the same reduction ratio. As can be seen from this figure, there is an optimum point for the reduction ratio between the flange and the web, and it also shows that the amount of flange reduction influences the thickness increase near the R section.

このように、水平ロールの形状とウェブ縮小慴さらにフ
ランジ圧下量をコントロールすることにより、ウェブつ
け根部R近傍の増肉分を任意に調整し、同一断面積のH
形鋼においても曲げ合成のすぐれた製品を製造すること
が可能である。
In this way, by controlling the shape of the horizontal roll, the web reduction, and the amount of flange reduction, the increase in thickness near the web base R can be adjusted arbitrarily, and the H of the same cross-sectional area can be adjusted as desired.
It is also possible to manufacture products with excellent bending properties in shaped steel.

〈発明の効果〉 以上説明したように、本発明によれば、高剛性のH形鋼
製品を製造することが可能であるから、製品の性能向上
に大いに貢献し得る。
<Effects of the Invention> As explained above, according to the present invention, it is possible to manufacture a highly rigid H-section steel product, which can greatly contribute to improving the performance of the product.

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

第1図(a)、 (b)は、本発明方法の実施に用いる
仕上ユニバーサル圧延機の水平ロールの概要を部分的に
示す正面図、第2図は、ウェブ・フランジの圧下比と長
手方向への伸び率の関係を示す特性図、第3図(a)は
、本発明の実施に用いる中間圧延材の形状を示す正面図
、第3図(b)は、本発明の実施に用いるH形鋼の形状
を示す正面図、第4図(a)、 (b)は、本発明の実
験に用いた水平ロールの形状を部分的に示す正面図、第
5図は、ウェブつけ根部の増肉の状態の説明図、第6図
は、縮小率とR部増肉割合の関係を示す特性図、第7図
は、フランジ圧下量と増肉割合の関係を示す特性図、第
8図は、l]形鋼の熱間圧延ラインの従来例を示す平面
図、第9図(a)、 (b)は、それぞれ中間圧延材、
H形鋼の圧延の説明図、第10図は、曲げ剛性の説明図
、第11図(a)、 (b)は、H形鋼の形状を示す正
面図である。 4・・・粗ユニバーサル圧延機、   4a・・・垂直
ロール、  4b・・・水平ロール、  6・・・仕上
ユニバーサル圧延機、   6A・・・垂直ロール、 
  6B・・・水平ロール511・・・中間圧延材、1
2・・・H形鋼。
Figures 1 (a) and (b) are front views partially showing the outline of the horizontal roll of a finishing universal rolling mill used to carry out the method of the present invention, and Figure 2 shows the reduction ratio and longitudinal direction of the web flange. FIG. 3(a) is a front view showing the shape of the intermediate rolled material used in the implementation of the present invention, and FIG. 3(b) is a characteristic diagram showing the relationship between the elongation rate and the 4(a) and 4(b) are front views showing the shape of the horizontal roll used in the experiments of the present invention, and FIG. 5 is a front view showing the shape of the web base. An explanatory diagram of the state of the meat. Figure 6 is a characteristic diagram showing the relationship between the reduction rate and the R section thickness increase rate. Figure 7 is a characteristic diagram showing the relationship between the flange reduction amount and the thickness increase rate. , l] A plan view showing a conventional example of a hot rolling line for section steel, FIGS.
FIG. 10 is an explanatory diagram of rolling of H-section steel, FIG. 10 is an explanatory diagram of bending rigidity, and FIGS. 11(a) and 11(b) are front views showing the shape of H-section steel. 4... Rough universal rolling mill, 4a... Vertical roll, 4b... Horizontal roll, 6... Finishing universal rolling mill, 6A... Vertical roll,
6B...Horizontal roll 511...Intermediate rolling material, 1
2...H-shaped steel.

Claims (1)

【特許請求の範囲】[Claims]  形鋼を熱間圧延するに際し、粗ユニバーサルミルでの
粗圧延段階で粗形鋼片のウェブ厚、フランジ厚、フラン
ジ幅を減少させ、その後の仕上ユニバーサルミルでの仕
上圧延段階においてロール軸方向の位置を可変にし得る
少なくとも2つに分割された水平ロールの外幅寸法を粗
圧延に用いる粗ユニバーサルミルの水平ロールの外幅寸
法より小さく設定し、前記仕上ユニバーサルミルの水平
ロールと垂直ロールによりフランジ厚さを圧下しながら
角度起こしをすると同時にウェブ高さの圧下を行ってウ
ェブ高さの圧縮量とフランジ厚、ウェブ厚の圧下量バラ
ンスおよびロール形状によってウェブとフランジのつけ
根部を増肉することを特徴とするH形鋼の熱間圧延方法
When hot rolling a section, the web thickness, flange thickness, and flange width of the rough section are reduced in the rough rolling stage with a rough universal mill, and the roll axial direction is reduced in the subsequent finish rolling stage with a finishing universal mill. The outer width of the horizontal roll divided into at least two parts whose position can be varied is set smaller than the outer width of the horizontal roll of the roughing universal mill used for rough rolling, and the horizontal roll and vertical roll of the finishing universal mill are used to roll the flange. Raise the angle while reducing the thickness and simultaneously reduce the web height to increase the thickness at the base of the web and flange by adjusting the amount of web height compression and flange thickness, the balance of web thickness reduction, and the roll shape. A method for hot rolling H-section steel, characterized by:
JP10534390A 1990-04-23 1990-04-23 Hot rolling method of h-shape steel Pending JPH044902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10534390A JPH044902A (en) 1990-04-23 1990-04-23 Hot rolling method of h-shape steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10534390A JPH044902A (en) 1990-04-23 1990-04-23 Hot rolling method of h-shape steel

Publications (1)

Publication Number Publication Date
JPH044902A true JPH044902A (en) 1992-01-09

Family

ID=14405094

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10534390A Pending JPH044902A (en) 1990-04-23 1990-04-23 Hot rolling method of h-shape steel

Country Status (1)

Country Link
JP (1) JPH044902A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01230369A (en) * 1988-03-10 1989-09-13 Ube Ind Ltd Medical equipment
US5693320A (en) * 1996-03-17 1997-12-02 Ube Industries, Ltd. (Meth)acryloyloxy substituted acetylsalicylates and polymers thereof
CN102125933A (en) * 2010-12-24 2011-07-20 莱芜钢铁股份有限公司 Universal mill type
CN113732054A (en) * 2021-09-02 2021-12-03 马鞍山钢铁股份有限公司 UR pass of hot-rolled H-shaped steel and hot-rolled H-shaped steel rolling method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01230369A (en) * 1988-03-10 1989-09-13 Ube Ind Ltd Medical equipment
US5693320A (en) * 1996-03-17 1997-12-02 Ube Industries, Ltd. (Meth)acryloyloxy substituted acetylsalicylates and polymers thereof
CN102125933A (en) * 2010-12-24 2011-07-20 莱芜钢铁股份有限公司 Universal mill type
CN113732054A (en) * 2021-09-02 2021-12-03 马鞍山钢铁股份有限公司 UR pass of hot-rolled H-shaped steel and hot-rolled H-shaped steel rolling method
CN113732054B (en) * 2021-09-02 2024-04-05 马鞍山钢铁股份有限公司 UR hole type of hot-rolled H-shaped steel and rolling method of hot-rolled H-shaped steel

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