JPS6082208A - Roll for rolling round billet - Google Patents

Roll for rolling round billet

Info

Publication number
JPS6082208A
JPS6082208A JP18514283A JP18514283A JPS6082208A JP S6082208 A JPS6082208 A JP S6082208A JP 18514283 A JP18514283 A JP 18514283A JP 18514283 A JP18514283 A JP 18514283A JP S6082208 A JPS6082208 A JP S6082208A
Authority
JP
Japan
Prior art keywords
caliber
rolled
calibers
round steel
finishing
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
JP18514283A
Other languages
Japanese (ja)
Inventor
Kiyomi Taguchi
田口　喜代美
Keishiro Tsujimura
辻村　慶四郎
Michio Kunimoto
国本　道雄
Nobuyoshi Hamura
羽村　信義
Masataka Yamazaki
山崎　正孝
Masaaki Sugata
菅田　允陽
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 Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP18514283A priority Critical patent/JPS6082208A/en
Publication of JPS6082208A publication Critical patent/JPS6082208A/en
Pending legal-status Critical Current

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
    • B21B1/20—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 in a non-continuous process,(e.g. skew rolling, i.e. planetary cross rolling)

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

PURPOSE:To enable production of many kinds of round billets having different diameters with one set of rolls with a titled roll formed with box, leader and finish calibers by forming plural finishing calibers to said rolls. CONSTITUTION:Each of a pair of upper and lower rolls A has the 1st and 2nd box calibers 1, 2, leader calibers 3 and three kinds of finishing calibers 4a-4c. The diameters of the calibers 4a-4c differ respectively and decrease stepwise from the left toward the right. A blank material 5 is reverse-rolled by the caliber 1 to an intermediate blank material 5b and said intermediate material is similarly rolled to an intermediate blank material 5c by the caliber 2 after 90 deg. rotation in the case of producing a round billet 6. Said intermediate material is rotated 90 deg. and is rolled similarly by the caliber 3 to an intermediate blank material 5d and finally the material is rolled by the caliber 4a. The billet 6 is subjected to flat dump rolling in the flat part of the caliber 1 or 2 to an intermediate blank material 6a and said blank material is rotated 90 deg. and is rolled by the caliber 4b in the case of obtaining a round billet 7 having the intermediate diameter smaller than the diameter of the billet 6.

Description

【発明の詳細な説明】 この発明は、丸鋼片の圧延用ロールに関するものである
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a roll for rolling round steel pieces.

従来、丸鋼片の圧延用ロールＡは１例えば、第１図に示
されるように、！−ｓｌボックスカリバー１゜第２ボッ
クスカリバー２．リーダーカリバー３（オーバルまたは
ゴシックカリバー）および仕上はカリバー４を有してい
た。Conventionally, a roll A for rolling a round steel billet is used, for example, as shown in FIG. -sl box caliber 1° 2nd box caliber 2. It had a leader caliber 3 (oval or gothic caliber) and a finish caliber 4.

丸鋼片６は上下１対の前記ロールによって、以下のよう
にして製造される。即ち、素材５ａは第１ボツクスカリ
バー１によってリバース圧延されて中間素材５ｂとなる
。次いで、中間素材５ｂは９０匿回転された後、第２ボ
ツクスカリバー２によってリバース圧延されて中間素材
５Ｃとなる。次いで。The round steel piece 6 is manufactured by the pair of upper and lower rolls in the following manner. That is, the raw material 5a is reverse rolled by the first box caliber 1 to become an intermediate material 5b. Next, the intermediate material 5b is rotated 90 times and then reverse rolled by the second box caliber 2 to become an intermediate material 5C. Next.

中間素材５Ｇは９０度回転された後、リーダーカリバー
３によってリバース圧延されて、断面形状略楕円の中間
素材５ｄとなる。そして、最後に中間索１Ｊ５ｄは仕上
カリバー４によって圧延されて製品丸鋼片６になる。After the intermediate material 5G is rotated by 90 degrees, it is reverse rolled by the leader caliber 3 to become an intermediate material 5d having a substantially elliptical cross-sectional shape. Finally, the intermediate cable 1J5d is rolled by the finishing caliber 4 into a product round steel piece 6.

しかし、上述した従来のロールには一仕上げカリバー４
が１つしか設けられていないので、１種類の丸鋼片しか
圧延することができない。従って。However, the conventional roll mentioned above has one finish, Caliber 4.
Since only one is provided, only one type of round steel piece can be rolled. Therefore.

径の異なる丸鋼片を圧延する場合には、そのつどロール
の組替２行わなければならず、能率が悪かった。When rolling round steel pieces with different diameters, the rolls had to be changed each time, resulting in poor efficiency.

この発明は、上述のような観点から、径の異なる丸鋼片
を圧延することができる。丸鋼片の圧延用ロールを提供
するものであって。From the above-mentioned viewpoint, the present invention can roll round steel pieces with different diameters. The present invention provides a roll for rolling round steel pieces.

ボックスカリバー、リーダーカリバーおよび仕上げカリ
バーが形成された丸鋼片の上下１対の圧延用ロールにお
いて、前記上下１対の圧延用ロールの各々には、前記仕
上げカリバーが複数個形成され、前記複数個の仕上げカ
リバーの各々の径はそれぞれ異っていることに特徴を有
する。In a pair of upper and lower rolling rolls for a round steel piece on which a box caliber, a leader caliber, and a finishing caliber are formed, a plurality of finishing calibers are formed on each of the pair of upper and lower rolling rolls, and a plurality of finishing calibers are formed on each of the pair of upper and lower rolling rolls, and the plurality of finishing calibers are The finishing calibers are characterized by different diameters.

この発明の一笑施態様を図面を参照しながら説明する。A simple embodiment of this invention will be explained with reference to the drawings.

第２図は、この発明の一実施態様の上下１対のロールの
部分断面図である。FIG. 2 is a partial sectional view of a pair of upper and lower rolls according to an embodiment of the present invention.

第２図に示されるように、この発明の一実施態様の上下
１対のロールＡの各々は、第１ボツクスカリバー１−１
４２ボックスカリバー２．リーダーカリバー３（オーバ
ルカリバーまたはゴシックカリバー）および３種類の仕
上げカリバー４ａ〜４ｃを有している。As shown in FIG. 2, each of the upper and lower pairs of rolls A in one embodiment of the present invention has a first box caliber 1-1.
42 box caliber 2. It has a leader caliber 3 (oval caliber or gothic caliber) and three finishing calibers 4a to 4c.

仕上げカリバー４ａ〜４ｃの径は、それぞれ異っている
。即ち、仕上はカリバーの径は図中左から右に向って段
階的に小さくなっている。The finished calibers 4a to 4c have different diameters. That is, the diameter of the finished caliber gradually decreases from left to right in the figure.

丸鋼片６は、上記上下１対のロールＡによって次のよう
に圧延される。即ち、累月５ａは第１ボツクスカリバー
１によってリバース圧延されて中間素月５ｂとなる。次
いで、中間素材５ｂは９０度回転さｒした後、第２ボツ
クスカリバー２によってリバース圧延されて中間素材５
ｃとなる。次いで、中間索４７５ｃは９０度回転された
後、リーダーカリバー３にＪ：ってリバース圧延されて
、断ｄ＞ｊ形状路楕円の中間索材調となる。そして、最
後に中間素材５ｄは最大径の仕上カリバー４ａによって
圧延されて製品丸鋼片６となる。The round steel piece 6 is rolled by the pair of upper and lower rolls A as described below. That is, the cumulative moon 5a is reverse rolled by the first box caliber 1 to become the intermediate moon 5b. Next, the intermediate material 5b is rotated by 90 degrees and then reverse rolled by the second box caliber 2 to form the intermediate material 5.
c. Next, the intermediate rope 475c is rotated by 90 degrees, and then reverse rolled by the leader caliber 3 so that the intermediate rope has an elliptical shape with a cross section of d>j. Finally, the intermediate material 5d is rolled by the finishing caliber 4a with the largest diameter to form the product round billet 6.

丑だ、最大径の仕上カリバー４ａによって圧延された丸
鋼片６より小径の中間径の丸鋼片７を製造するには、最
大径の丸鋼片６を第１ボツクスカリバー１によってフラ
ットダンプ圧延して、中間径の丸鋼片７の中間素材６ａ
とする。次いで一前記中間累月６ａを９０’回転させて
、中間径の仕上カリバー４ｂによって圧延して中間径の
丸鋼片７とする。In order to produce a round steel piece 7 with an intermediate diameter smaller than the round steel piece 6 rolled by the finishing caliber 4a with the largest diameter, the round steel piece 6 with the largest diameter is flat dump rolled by the first box caliber 1. Then, the intermediate material 6a of the round steel piece 7 with an intermediate diameter is
shall be. Next, the intermediate lugs 6a are rotated 90' and rolled into a round steel piece 7 with an intermediate diameter by a finishing caliber 4b with an intermediate diameter.

さらに、中間径の仕上カリバー４ｂによって圧延された
丸鋼片７より小径の最小径の丸鋼片８を製造するには、
中間径の丸鋼片７を第１ボツクスカリバー１によって７
ラントダンプ圧延して、最小径の丸鋼片８の中間素材７
ａとする。次いで、前記中間累月７ａを９０度回転させ
て、最小径の仕上げカリバー４０によって圧延して最小
径の丸鋼片８とする。Furthermore, in order to manufacture a round steel piece 8 with a smaller diameter than the round steel piece 7 rolled by the intermediate diameter finishing caliber 4b,
A round steel piece 7 with an intermediate diameter is cut by the first box caliber 1.
An intermediate material 7 of a round steel piece 8 with the smallest diameter is produced by runt dump rolling.
Let it be a. Next, the intermediate lugs 7a are rotated 90 degrees and rolled by a finishing caliber 40 of the minimum diameter to form a round steel piece 8 of the minimum diameter.

仕上げカリバー４ａ〜４ｃの径としては１例えば。For example, the diameter of the finished calibers 4a to 4c is 1.

第１表に示される寸法とする。The dimensions shall be as shown in Table 1.

第１表 第１ボツクスカリバー１による水平ダンプ圧延時の圧下
量と、中間素材６ａ″！、たけ７ａの幅広がり量との関
係は１例えば、第３図の通りである。従って、ある径か
ら別の径の丸鋼片に圧延するには、第３図に示される関
係をもとに仕上げカリバー４ｂおよび４ｃの圧下量を推
定することができる。このｔ”Ａ−第１ボツクスカリバ
ー１による圧下量が大きい場合には、仕上げカリバー４
ｂおよび４Ｃでリバース圧延する。Table 1 The relationship between the rolling reduction amount during horizontal dump rolling by the first box caliber 1 and the width expansion amount of the intermediate material 6a''! and the height 7a is as shown in FIG. 3. Therefore, from a certain diameter In order to roll a round steel piece with a different diameter, the reduction amount of the finishing calibers 4b and 4c can be estimated based on the relationship shown in FIG. If the reduction amount is large, use finishing caliber 4.
Reverse rolling at b and 4C.

第１図に示した従来ロールによって、３１０ｍｎＩφの
丸鋼片を製造したときの丸鋼片の外径の寸法分添の結果
を第４図に示し、そして、第２図に示した本発１．ｌｌ
Ｊ法によって、３５０ηａｎφの丸鋼片を３３０　ｍｍ
φに圧延し、さらしにれヶ圧延して３１０Ｉ？υＩＩφ
の丸鋼片に圧延したときの丸鋼片の外径の寸法公差の結
果を第５図に示す。Figure 4 shows the results of adding dimensions of the outer diameter of round steel pieces when a round steel piece of 310 mnIφ was produced using the conventional roll shown in Figure 1, and ．． ll
A round steel piece of 350ηanφ was cut into 330 mm by the J method.
Rolled to φ, exposed and rolled to 310I? υIIφ
Figure 5 shows the results of the dimensional tolerance of the outer diameter of the round steel piece when it was rolled into a round steel piece.

第５図からＩＪＪらかなように１本発明法によって製造
した丸鋼片の外径の寸法公差は、従来法による場合とほ
とんどかわらない。As is clear from FIG. 5, the dimensional tolerance of the outer diameter of the round steel piece manufactured by the method of the present invention is almost the same as that by the conventional method.

以上説明したように、この発明によれば、１組のロール
によって径の異なる多秒類の丸鋼片の製造を行うことが
できるといった効果がもたらされる。As explained above, according to the present invention, it is possible to produce round steel pieces of various sizes with different diameters using one set of rolls.

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

第１図は、従来の丸鋼片の圧延用ロールの部分断面図お
よび圧延方法を示す図、第２図は、この発明の一実施態
様の部分断面図および圧延方法を示す図、第３図は、丸
鋼片の直径と１幅広がりの割合との関係を示すグラフ、
第４図は、従来ロールにより圧延したときの丸鋼片の外
径の寸法公差を示すグラフ、第５図は１本発明ロールに
より圧延したときの丸鋼片の外径の寸法公差を示すグラ
フである。図面において。 １・・・第１ボツクスカリバー ２・・・第２ボツクスカリバー ３・・・リーダーカリバー ４．４ａ、　４ｂ、　４ｃｍ仕上げカリバー５ａ、　５
ｂ、　５ｃ、　５ｄ、　６ａ、　７ａ　−中間素材６．
７．８・・・丸鋼片 年１図 第２図 第３図 ＡｔｆＪ　Ｐ　／）　ｉ任（ｍｍψ） 華４図 ；全問す汰（ｍｍ） 穿５図 神膚す汰（ｍｍ） 手続補正書（自発） ■（和５８年１２月２０日 特許庁長官　若　杉　和　夫　殿 １、事件の表示 特願昭５８−　１８５１４２　号 ２、発明の名称 丸鋼片の圧延用ロール ３、補正をする者 事件との関係　特許出願人 り面　東京都千代田区丸の内−丁目１番２号ＩＥ名（ｇ
称）　（４１２）日本鋼管株式会社代表者　金　尾　實 自　発 ６、補正の対象 明細書の発明の詳細な説明の欄 ７、補正の内容　別紙の通り （１）明細書、第４頁、発明の詳＃４１１な説明の欄、
１６〜１７行目、 「第１ボツクスカリバー１」とあるを、「第１または第
２＝ｅボツクスカリバーｌ捷たは２のフラット部分」に
訂正する。 （２）　明細書、第５頁、発明の詳）Ｉｌｌな説明の柵
１１３〜４行目、 「第１ボツクスカリバー１」とあるを、「第１または第
２ボツクスカリバー１または２のフラット部分」に訂正
する。 （３）　間約１書、第６頁、発明の詳細な説明の欄、１
行目、 「第１・・・・・・・ダンプ圧延」とあるを、［第１ま
たは第２ボツクスカリバー１または２のフラット部分に
よるフラットダンプ圧延」に訂正する。 （４）　明細書、第６頁、発明の詳細な説明の欄、７行
目、 「第１ボツクスカリバー１」とある金、［第１または第
２ボツクスカリバー１または２のフラット部分」に訂正
する。 以上FIG. 1 is a partial cross-sectional view of a conventional roll for rolling round steel pieces and a diagram showing a rolling method, FIG. 2 is a partial cross-sectional view of an embodiment of the present invention and a diagram showing a rolling method, and FIG. is a graph showing the relationship between the diameter of a round steel piece and the ratio of one width spread,
Fig. 4 is a graph showing the dimensional tolerance of the outer diameter of a round steel billet when rolled with conventional rolls, and Fig. 5 is a graph showing the dimensional tolerance of the outer diameter of a round steel billet when rolled with one roll of the present invention. It is. In the drawing. 1... 1st box caliber 2... 2nd box caliber 3... Leader caliber 4.4a, 4b, 4cm finishing caliber 5a, 5
b, 5c, 5d, 6a, 7a - intermediate material 6.
7.8...Round piece year 1 figure 2 figure 3 figure AtfJ P/) iren (mmψ) flower 4 figure; all questions (mm) hole 5 figure god plate (mm) Procedure correction (Spontaneous) ■(December 20, 1996, Director General of the Japan Patent Office, Kazuo Wakasugi, 1, Indication of the Case, Patent Application No. 185142, No. 1983, Title of the Invention: Roll for Rolling Round Steel Billets 3, Amendment) Relationship with the patent applicant case IE name (g), 1-2 Marunouchi-chome, Chiyoda-ku, Tokyo
(412) Representative of Nippon Kokan Co., Ltd. Minoru Kaneo 6. Column 7 for detailed explanation of the invention in the specification to be amended. Contents of the amendment As attached (1) Description, page 4, Invention Detailed explanation column #411,
In lines 16 and 17, the phrase "first box caliber 1" is corrected to "first or second = flat part of e-box caliber l or 2." (2) Specification, page 5, details of the invention) Illustrative explanation fence, lines 113 to 4, "first box caliber 1" is replaced with "flat part of first or second box caliber 1 or 2" ” is corrected. (3) Intersection 1, page 6, detailed description of the invention, 1
In line 1, the phrase "first dump rolling" is corrected to "flat dump rolling by the flat portion of the first or second box caliber 1 or 2." (4) Specification, page 6, Detailed Description of the Invention, line 7, "First box caliber 1" in gold, corrected to "flat part of first or second box caliber 1 or 2" do. that's all

Claims (1)

【特許請求の範囲】[Claims] ボックスカリバー、リーダーカリバーおよび仕上げカリ
バーが形成された丸鋼片の上下１対の圧延用ロールにお
いて、前記上下１対の圧延用ロールの各々には、前記仕
上げカリバーが複数個形成され、前記複数個の仕上げカ
リバーの各々の径はそれぞれ異っていることを特徴とす
る。丸鋼片の圧延用ロール。In a pair of upper and lower rolling rolls for a round steel piece on which a box caliber, a leader caliber, and a finishing caliber are formed, a plurality of finishing calibers are formed on each of the pair of upper and lower rolling rolls, and a plurality of finishing calibers are formed on each of the pair of upper and lower rolling rolls, and the plurality of finishing calibers are The finishing calibers are characterized by different diameters. Roll for rolling round steel pieces.
JP18514283A 1983-10-05 1983-10-05 Roll for rolling round billet Pending JPS6082208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18514283A JPS6082208A (en) 1983-10-05 1983-10-05 Roll for rolling round billet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18514283A JPS6082208A (en) 1983-10-05 1983-10-05 Roll for rolling round billet

Publications (1)

Publication Number Publication Date
JPS6082208A true JPS6082208A (en) 1985-05-10

Family

ID=16165605

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18514283A Pending JPS6082208A (en) 1983-10-05 1983-10-05 Roll for rolling round billet

Country Status (1)

Country Link
JP (1) JPS6082208A (en)

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