JPS5921404A - Rolling method of wire rod - Google Patents
Rolling method of wire rodInfo
- Publication number
- JPS5921404A JPS5921404A JP13186882A JP13186882A JPS5921404A JP S5921404 A JPS5921404 A JP S5921404A JP 13186882 A JP13186882 A JP 13186882A JP 13186882 A JP13186882 A JP 13186882A JP S5921404 A JPS5921404 A JP S5921404A
- Authority
- JP
- Japan
- Prior art keywords
- rolls
- rolling
- steel material
- ratio
- stand
- 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
-
- 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
- B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
ットロールLラウンド力リパーロールを交互に配置して
圧延する線材の圧延方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of rolling a wire rod by alternately arranging L round force ripper rolls.
線月の仕上圧延機は、一般に圧延速度の高速化( 6
0 m/+以上)と品質確保(表面疵が少なく力Sつ寸
法精度が良好)の背景から、銅相の捻転75=不要なよ
うに各スタンドロールが45°ずつ交互に自1置され一
定のギア比を有して故意にわずかのテンションを与えて
圧延を行なうブロックミルとなっているが、ブロックミ
ル各スタンドの圧延法は従来幅拡り拘束を設けて高い延
伸を確保し表面疵〃;生成しに<<、熱間加工上造形性
にすぐれているオーバルカリバーロールとラウンドカリ
バーロールを交互に配置1″したオーノ々ルーラウンド
方式の孔型圧延法によっている。Shingetsu's finishing rolling mill generally has a high rolling speed (6
0 m/+) and to ensure quality (less surface flaws, good force and dimensional accuracy), each stand roll is placed alternately at 45 degrees to avoid the need for twisting of the copper phase (75 = 75). The block mill has a gear ratio of 1,000,000, and rolls by intentionally applying a small amount of tension.However, the rolling method of each stand of the block mill has conventionally provided width expansion restraint to ensure high elongation and prevent surface defects. ; The production is carried out by the hole rolling method of an oval-round method in which oval caliber rolls and round caliber rolls, which have excellent shapeability during hot processing, are alternately arranged 1".
しかしながらこのブロックミル孔型圧延法においては、
(1)仕上各ヌタンドにおいて製品サイズ固有の孔型ロ
ール(材質はWC)を使用するため、ロール管理上高価
な超硬ロールの手持数が大となり費用がかかる。However, in this block mill groove rolling method, (1) Finishing Because a groove roll (material: WC) specific to the product size is used for each nutand, the number of expensive carbide rolls on hand is large due to roll management, resulting in high costs. It takes.
(2) 製品づイズかかわるたびにロール組替を行な
わねけならず、圧延作業上ロール絹製時間の損失が多大
である。(2) Rolls must be rearranged every time a product is manufactured, resulting in a significant loss of time during the rolling process.
印iの欠点がある。There is a drawback marked i.
本発明者らは、従来法の欠点を排除すべく仙究の結果、
ヌタンド毎に一定のギア比を有し一定のデンジランをか
けてHE延を行なうブロックミルにおいて、従来の牙−
パルカリバーロールの替りにフラットロールを用いフラ
ットロールとラウンド力l) バーロールを交互に配置
することによりスタンド間のループ発生による圧延トラ
ブルが防止でき、かつ従来法と同等以上の品質(表面疵
と寸法精度)が確保できること全見出した。この結果従
来法のように各ヌタンド毎に製品1イズ固有のカリバー
ロールをもたなくても、圧延はoJ能となり、ロール管
理上高価な超硬ロールの手持数音大幅に削減でき、ロー
ル組替時間も約平分に削減可能であることがわかった。As a result of extensive research to eliminate the drawbacks of conventional methods, the present inventors have
In a block mill that has a fixed gear ratio for each nutand and performs HE rolling by applying a fixed speed, the conventional
By using flat rolls instead of Palcalibur rolls and arranging bar rolls alternately, rolling troubles caused by loops between stands can be prevented, and the quality is equivalent to or higher than that of the conventional method (surface flaws and It has been found that dimensional accuracy can be ensured. As a result, rolling can be performed on an OJ basis without having to have a caliber roll specific to each product size for each nutand as in the conventional method, and the number of rolling noises of expensive carbide rolls can be significantly reduced in terms of roll management. It has been found that changeover time can be reduced to approximately the same amount.
本発明の目的はブロックミルにおいて従来の孔型圧延と
同等以上の品質全確保し、しかも高価な超硬ロールの手
持数削減を行ない、かつロール組替時間の短縮が可能な
線材の圧延方法を提供するものである。すなわち本発明
は、ブロックミルに丸・いてフラットロールとラウンド
カリバーロール全交互に配化して圧延することを特徴と
J゛る線相の圧延力法である。The purpose of the present invention is to provide a method for rolling wire rods in a block mill that can ensure quality equal to or higher than conventional groove rolling, reduce the number of expensive carbide rolls on hand, and shorten the roll change time. This is what we provide. That is, the present invention is a linear phase rolling force method characterized in that flat rolls and round caliber rolls are alternately arranged in a block mill for rolling.
次に不発ツ]について詳細に説明する。Next, we will explain in detail the following.
本発明でロール配置を規定したのは、一般にブロックミ
ルにおいてはメーパルカリバーとラウンドカリバーの交
乱配降となっており、オーバルカリバーをフラット化し
ラウンドカリバーと交互に配置することにより、孔型圧
延するときと同じ構造のロール入口ローラーガイドを用
いるだけで仕上圧延途中での銅イ)の倒れを防止でき、
かつ鋼材の噛込性も容易に確保Fi]能となり、さらに
最終ロールがラウンドとなるため製品の寸法精度確保の
土でも非常に好都合でおるからである。The roll arrangement specified in the present invention is generally an interlaced arrangement of maple calibers and round calibers in block mills. By simply using a roll entrance roller guide with the same structure as when rolling, it is possible to prevent the copper a) from falling during finish rolling.
Moreover, it is possible to easily ensure the biting property of steel materials, and furthermore, since the final roll is round, it is very convenient to ensure the dimensional accuracy of the product.
次に本発明の実施例について第1図により述べる。Next, an embodiment of the present invention will be described with reference to FIG.
第1図は、鋼Iの延伸比を横軸に先進率を縦軸にとった
ときのグラフであり、
口鋼拐断面積、D二平ロール径またはラウンドロール作
動径、N:ロール回転数、i:ギア増速比、V:実測値
で表わされる。Figure 1 is a graph with the drawing ratio of Steel I taken on the horizontal axis and the advance ratio taken on the vertical axis. , i: gear speed increasing ratio, V: actual measured value.
図において、★はブロックミルでの圧延トラブル発生(
5,5φ、5 Q m / s ) 、■はブロックミ
ルでの圧延トラブル時、WCロール割損事故発生を示し
、閣はフラットロール→ラウンドカリノ9−〇−ルのロ
ール配置、・はラウンドカリノf−ロール→フラットロ
ールのロール配置を示す。In the figure, ★ indicates the occurrence of rolling trouble in the block mill (
5,5φ, 5 Q m/s), ■ indicates the occurrence of a WC roll breakage accident during rolling trouble in a block mill, the roll arrangement is flat roll → round carino 9-〇-roll, ・ is round carino The roll arrangement from f-roll to flat roll is shown.
フラットロールとラウンドカリノ々−ロールを交互に配
置して入口鋼材寸法17.5φ、入口圧延温度900℃
、最大速度60m/!Iでサイズ5.5φを圧延した場
合、第1図に示す如く、入口断面積と出口断面積の延伸
比を1.3以下、かつ先進率を6チ以下のパススケ−)
、−ルの設計を行なえば、スタンド間のループ発生によ
る圧延トラブル及びロール割損等のトラブルが発生しな
いことがわ力1つた0
第1人U本発明と従来法との圧延状態を比較したもので
ある。第1表にみるように各ヌタンド毎に一’Jjlの
ギア比をもち2〜7q6のテンションをかけ”UFF机
するブロックミルにおいては、第1図に示す如くIル伸
比1.35以上かつ先進率7係を越えてはヌタンド間ル
ープにより圧延トラブルを生じ、このル〜ゾがはなはだ
しいときには無理な押込力がかかってロール割拍事故も
生じることがある。Flat rolls and round carino rolls are arranged alternately to make the inlet steel material size 17.5φ and the inlet rolling temperature 900℃.
, maximum speed 60m/! When rolling a size 5.5φ with I, as shown in Figure 1, the stretch ratio of the inlet cross-sectional area to the outlet cross-sectional area is 1.3 or less, and the advance rate is 6 inches or less.
By designing the rolls, it is possible to avoid rolling troubles due to loops between stands and troubles such as breakage of rolls.0 1st person U compared the rolling conditions of the present invention and the conventional method. It is something. As shown in Table 1, in a block mill that uses a UFF machine with a gear ratio of 1'Jjl for each nutand and a tension of 2 to 7q6, as shown in Fig. 1, the gear ratio is 1.35 or more and When the advance rate exceeds 7, rolling troubles occur due to loops between bolts, and when this luzo is excessive, unreasonable pushing force is applied and roll splitting accidents may occur.
本発明では、一般のブロックミルの銅相入口形状が円形
前「而であるためフラットロールとラウンドカリバーの
交互配信が好ましいが、最終ロールを・ラウンドカリバ
ーとすればラウンドカリバーとフラットロールの交互配
涌゛でもさしつかえない〇第2図はブロックミル10ス
タンドのうち第1ヌタンドと第3スタンドにフラットロ
ールを組込んだときの第1〜第4スタンドにおける製品
ザイズ55φ、(1,土速度60 m/sによる圧延時
の圧延慣性仙の比較である。ここに線材のブロックミル
入口銅相形状kま17.5φの円形断面である。In the present invention, since the copper phase inlet shape of a general block mill is circular, it is preferable to alternately distribute flat rolls and round calibers. Figure 2 shows the product size 55φ, (1, soil speed 60 m This is a comparison of the rolling inertia during rolling by /s.Here is a circular cross section of the wire rod with a copper phase shape of 17.5φ at the entrance of the block mill.
第2図に)J<Jように本発明(実線で示す)を従来法
(一点鎖線で示す)と比較すると、フラットロールの減
面率が小さくラウンドカリバーロールの方が大きいが、
平均的には従来法と同等である。When comparing the present invention (indicated by the solid line) with the conventional method (indicated by the dashed-dotted line) such that J<J (in Fig. 2), the reduction in area of the flat roll is smaller and the area reduction rate of the round caliber roll is larger;
On average, it is equivalent to the conventional method.
また、先進率も減面率に比例していることがわかる。It can also be seen that the advancement rate is proportional to the area reduction rate.
第2図の噛込角θは第3図に示す角度を表わすが、本発
明の場合従来法よりやや大きめであるが噛込性について
はほぼ同勢と児、でよい。The biting angle θ in FIG. 2 represents the angle shown in FIG. 3, and in the case of the present invention, it is slightly larger than the conventional method, but the biting property may be approximately the same.
第2表 従来法と本発明のプロパーでの製品品質比較
このような不発ψ」による圧輯特性のもとて圧延した結
果と従来法とを品質(寸法精度、表面疵)面で比較した
のが第2表である。第2表にみる如く本発明によれは従
来法と同等の品質が確保できることがわかる。本発明に
よる圧延を累積1(・延屯数で8,000 Ton強を
実施したが圧延上のトラブルは皆無であった。Table 2 Comparison of product quality between the conventional method and the product according to the present invention is Table 2. As shown in Table 2, it can be seen that the present invention can ensure the same quality as the conventional method. Rolling according to the present invention was carried out to a cumulative total of over 8,000 tons (rolling tons), but there were no troubles during rolling.
第3表
ffi 3 &Nブロックミル10スタンドのうち第1
スタンドと第3ヌタンドにフラットロールを組込Aで、
製品全ライズを圧延したときの本発明と従来法との効果
を示す比較表であシ、これによりロール手持による金利
負担の大幅な削減となシコスト切下げにも貢献すること
がわかる。甘たブロックミルロール組替時間の比較では
、本発明は従来法に比して約30%の短縮が可能である
ことがわ刀る。Table 3 ffi 3 & N block mill 1st of 10 stands
Incorporate the flat roll into the stand and the third nutand with A.
This is a comparison table showing the effects of the present invention and the conventional method when rolling the entire rise of the product, and it can be seen that this contributes to a significant reduction in the interest burden due to roll holding and to a reduction in cost. A comparison of the block mill roll changeover time shows that the present invention can shorten the time by about 30% compared to the conventional method.
本発明は、以上述べた如くプロ、クミルにおいてフラッ
トL1−ルとラウンドカリバーロールを交互に配置し1
妙伸比1.3以下かつ先進率6%以下として圧延する線
月の圧延方法であるから、従来法の孔型圧延に比べてフ
ラット化したスタンドの不要な孔型ロールの手持数の大
幅な削減が可能でありコヌト切下げにもなり、またフラ
ット化したスタンドにおいてはロール組替が不要なため
ロール組替時間の短縮も可能であり、かつまた品質面で
も同等以上の効果が奏きれる。As described above, the present invention is based on the flat L1 roll and the round caliber roll being arranged alternately in the professional and kumil.
Since it is a straight rolling method that rolls with a Myoshin ratio of 1.3 or less and a rolling ratio of 6% or less, it eliminates the need for a flat stand and greatly reduces the number of groove rolls on hand compared to the conventional groove rolling method. It is possible to reduce the number of rolls and reduce the value of conuts, and since there is no need to change rolls in a flat stand, it is possible to shorten the time for changing rolls, and the same or better effect can be achieved in terms of quality.
第1図tゴ本発明による延伸比と先進率との関係を示す
図、第2図は本発明と従来方法とのFE延特性値の比較
図、第3図は噛込角θを表わす図である。
第 1図
第3同
25−Fig. 1 is a diagram showing the relationship between the drawing ratio and advance rate according to the present invention, Fig. 2 is a comparison diagram of FE drawing characteristic values between the present invention and the conventional method, and Fig. 3 is a diagram showing the biting angle θ. It is. Figure 1, Figure 3, 25-
Claims (2)
に45°ずつ交互に配置され、機械構造上沓スタンドご
とに一定のギア比を有し、単一駆動モーターによって駆
動され、わずかのテンションを与えてH二延を行なう線
拐仕上IJ−,延様において、フラットロールとラウン
ドカリバーロールを交互に配置して圧IJルすることを
特徴とする線詞の1処方法。(1) Each stand roll is arranged alternately by 45 degrees so that twisting of Ml is not necessary, and the mechanical structure has a constant gear ratio for each shoe stand, and is driven by a single drive motor, with a slight tension. 1. A method for forming a wire line, which is characterized in that flat rolls and round caliber rolls are arranged alternately and pressure IJ-rolling is carried out in the line finishing IJ- and rolling process in which two H-rolls are carried out.
鋼材断面積の比である延伸比金1.30以下とし、かつ
先進率を6%以下として圧延することを特徴とする特許
請求の範囲第1項記載の線材の圧延方法。(2) The entrance to each stand miI old cross section base and exit []
2. The method for rolling a wire rod according to claim 1, wherein the wire rod is rolled at a draw ratio of 1.30 or less, which is a ratio of the cross-sectional area of the steel material, and at a progress rate of 6% or less.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13186882A JPS5921404A (en) | 1982-07-28 | 1982-07-28 | Rolling method of wire rod |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13186882A JPS5921404A (en) | 1982-07-28 | 1982-07-28 | Rolling method of wire rod |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5921404A true JPS5921404A (en) | 1984-02-03 |
JPH0360561B2 JPH0360561B2 (en) | 1991-09-17 |
Family
ID=15068005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13186882A Granted JPS5921404A (en) | 1982-07-28 | 1982-07-28 | Rolling method of wire rod |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5921404A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100454744B1 (en) * | 2000-10-04 | 2004-11-03 | 주식회사 포스코 | Method for Manufacturing Wire Rod of Bi-S System Free-Cutting Steel |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101637984B1 (en) * | 2015-06-08 | 2016-07-13 | 이인석 | Tempering Device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58125301A (en) * | 1982-01-21 | 1983-07-26 | Sumitomo Metal Ind Ltd | Rolling method of bar and wire rod |
-
1982
- 1982-07-28 JP JP13186882A patent/JPS5921404A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58125301A (en) * | 1982-01-21 | 1983-07-26 | Sumitomo Metal Ind Ltd | Rolling method of bar and wire rod |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100454744B1 (en) * | 2000-10-04 | 2004-11-03 | 주식회사 포스코 | Method for Manufacturing Wire Rod of Bi-S System Free-Cutting Steel |
Also Published As
Publication number | Publication date |
---|---|
JPH0360561B2 (en) | 1991-09-17 |
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