KR20090069822A - '?'type steel manufacturing method - Google Patents

'?'type steel manufacturing method Download PDF

Info

Publication number
KR20090069822A
KR20090069822A KR1020070137623A KR20070137623A KR20090069822A KR 20090069822 A KR20090069822 A KR 20090069822A KR 1020070137623 A KR1020070137623 A KR 1020070137623A KR 20070137623 A KR20070137623 A KR 20070137623A KR 20090069822 A KR20090069822 A KR 20090069822A
Authority
KR
South Korea
Prior art keywords
rolling
shaped steel
mill
universal
finishing
Prior art date
Application number
KR1020070137623A
Other languages
Korean (ko)
Inventor
설진삼
박용근
이문형
김태형
Original Assignee
현대제철 주식회사
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 현대제철 주식회사 filed Critical 현대제철 주식회사
Priority to KR1020070137623A priority Critical patent/KR20090069822A/en
Publication of KR20090069822A publication Critical patent/KR20090069822A/en

Links

Images

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
    • B21B1/08—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 structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/095—U-or channel sections
    • 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
    • B21B1/08—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 structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/12—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 structural sections, i.e. work of special cross-section, e.g. angle steel in a continuous process, i.e. without reversing stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/06—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically, e.g. edgers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/08—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2263/00—Shape of product
    • B21B2263/02—Profile, e.g. of plate, hot strip, sections

Landscapes

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

Abstract

A C-shaped steel manufacturing method is provided to control the standard of the C-shaped steel by controlling the gap between upper, lower, left, right rolls of a universal rolling mill through a universal mill in final rolling. A C-shaped steel manufacturing method comprises: a step for heating material to be rolled transferred from a casting utility with passing through a furnace; and a step for passing the material through a plurality of rolling mills performing rough rolling, intermediate rolling, and finishing rolling and rolling the material. The rough rolling and the intermediate rolling are performed through a two-high rolling mill having upper and lower mill rolls. The finishing rolling is firstly performed through a universal rolling mill(20) equipped with upper, lower, left, right rolls(21,22,23,24), and secondly performed through an edge rolling mill, and finally performed through the universal rolling mill.

Description

'ㄷ'자 형강 제조 방법{'ㄷ'type Steel Manufacturing Method}'ㄷ' type steel manufacturing method}

본 발명은 'ㄷ'자 형강 제조 방법에 관한 것으로 더 상세하게는 'ㄷ'자 형강의 규격 조정이 용이하고, 제조 시 가공 오차를 최소화할 수 있도록 발명된 것이다.The present invention relates to a 'c' shaped steel manufacturing method, and more particularly, to be easy to adjust the standard of the 'c' shaped steel, it was invented to minimize processing errors during manufacturing.

일반적으로, "ㄷ"자 형강(이하 채널이라 함)은 토목,건축,기계분야에서 널리 사용되고 있다. In general, the "c" shaped steel (hereinafter referred to as a channel) is widely used in civil engineering, architecture, and machinery.

기존 형강 등의 압연재를 제조하는데 사용되는 압연 소재는 고로에서 제조된 용선을 제강로로 이송한 후에 정련하여 강을 제조한 후 압연용 강괴를 제조하기 위하여 연주작업을 통해 슬라브, 빌레트, 블룸 등의 형태로 제조되는 것이다.Rolled materials used to manufacture rolled materials, such as existing section steel, are transferred to molten steel from the blast furnace, and then refined to produce steel, followed by slabs, billets, blooms, etc. It is prepared in the form of.

상기 압연 소재는 압연공장으로 이송하여 재 가열후 압연을 하여 형강재를 만들고, 압연된 형강재는 롤러 테이블을 타고 이송되면서 고속 회전되는 절단기에 의해 절단되어 적정 길이의 형강으로 제작되는 공정을 가지게 된다.The rolled material is transferred to a rolling mill to be re-heated and rolled to form a shaped steel material, and the rolled shaped steel material is cut by a high speed rotating cutter while being transported on a roller table to have a process of manufacturing a shaped steel of an appropriate length.

일예로 선재 압연의 소재중 하나인 빌릿(billet)는 가열로에서 약 90분간 가열되어 대략 1100℃에서 추출되어 조압연, 중간사상 압연, 사상압연을 거쳐 마무리되는 공정을 갖는다.For example, a billet, one of the raw materials of wire rod rolling, is heated in a heating furnace for about 90 minutes, extracted at approximately 1100 ° C., and has a process of finishing through rough rolling, intermediate sand rolling, and finishing rolling.

종래 압연기는 롤의 개수와 조립 형태에 따라 2단식 압연기, 3단식 압연기, 4단식 압연기, 특수식 압연기등으로 구분되며, 그중 기존 'ㄷ'자 형강을 제조하기 위한 압연기는 상, 하부 압연 롤러로 이루어지는 2단식 압연기를 채용하고 있다.Conventional rolling mills are classified into two-stage rolling mills, three-stage rolling mills, four-stage rolling mills, special rolling mills, etc. according to the number of rolls and the type of assembly. Among them, rolling mills for manufacturing 'c' shaped steel are upper and lower rolling rollers. A two-stage rolling mill is adopted.

상기 'ㄷ'자 형강은 상, 하부 압연 롤러로 압연 소재를 가압하는 2단식 압연기를 다단계로 구성하여, 다수의 2단식 압연기를 통과하면서 점차적으로 'ㄷ'자 형상으로 압연되는 것이다.The 'c' shaped steel is composed of a two-stage rolling mill pressurizing the rolled material with upper and lower rolling rollers in multiple stages, and gradually rolled into a 'c' shaped while passing through a plurality of two-stage rolling mills.

상기 2단식 압연기의 하부 압연 롤러는 'ㄷ'자 형강의 웨브부와 양 측 플랜지부의 외측면을 지지하도록 형성되며, 상부 압연 롤러는 웨브부의 상부와, 플랜지부의 내측면을 가압하여 지지하도록 형성되되, 각 단계별로 갈수록 압연 소재의 폭과 깊이를 증대시키도록 형성되는 것이다.The lower rolling roller of the two-stage rolling mill is formed to support the outer surface of the web portion and the flange portion of both sides of the 'c'-shaped steel, the upper rolling roller to press the upper portion of the web portion, and to press the inner surface of the flange portion Is formed, but is formed to increase the width and depth of the rolled material in each step.

즉, 'ㄷ'자 형강은 다수의 2단식 압연기 즉, 조압연기와, 중간압연기, 사상압연기로 점차적으로 'ㄷ'자 형상을 가지도록 압연되는 것이다.That is, the 'c' shaped steel is rolled to have a 'c' shape gradually into a plurality of two-stage rolling mills, that is, rough rolling mill, intermediate rolling mill, finishing mill.

그러나 종래 'ㄷ'자 형강은 조압연, 중간압연, 사상압연 시 2단식 압연기만을 사용하여 제조하는데 2단식 압연기의 상, 하 압연 롤은 'ㄷ'자 형강의 플랜지부를 형성하는 양 측벽부의 마모분을 보상하기 위해서 경가공량이 많아 롤의 원단위가 나빠지는 문제점이 있었던 것이다.However, the conventional 'ㄷ' shaped steel is manufactured using only a two-stage rolling mill during rough rolling, intermediate rolling, and finishing rolling. The upper and lower rolling rolls of the two-stage rolling mill wear both side wall portions forming the flange portion of the 'c' shaped steel. In order to compensate for the powder, there was a problem in that the raw unit of the roll deteriorated due to a large amount of light processing.

또 2단식 압연기는 최종 사상 압연 시 상, 하 압연 롤의 간격 조정으로 'ㄷ'자 형강의 웨브부와 플랜지부의 규격을 조정하므로 규격 조정에 한계가 있는 문제점이 있었던 것이다.In addition, the two-stage rolling mill had a problem in that there was a limitation in adjusting the standard because the standard of the web part and the flange part of the 'c' shaped steel was adjusted by adjusting the gap between the upper and lower rolling rolls during the final finishing rolling.

또한, 2단식 압연기에서 'ㄷ'자 형강의 플랜지부의 압연 시 상, 하 압연 롤의 압연량 차이로 플랜지부에 편심이 발생하는 문제점이 있었던 것이다.In addition, the two-stage rolling mill had a problem that the eccentricity occurs in the flange portion due to the difference in the rolling amount of the upper and lower rolling rolls when rolling the flange portion of the 'c' shaped steel.

본 발명의 목적은 최종 사상 압연기의 롤 원단위를 좋게하고, 'ㄷ'자 형강의 규격 조정 및 관리가 용이함은 물론 제품의 불량률을 감소시키는 'ㄷ'자 형강 제조 방법을 제공하는 데 있다.It is an object of the present invention to provide a 'c' shaped steel manufacturing method which improves the roll unit of the final finishing mill, facilitates the standard adjustment and management of the 'c' shaped steel and reduces the defective rate of the product.

이러한 본 발명의 과제는 압연 소재를 가열한 후에 조압연, 중간압연, 사상압연을 구성하는 다수개의 압연기를 통과시켜 'ㄷ'자 형강을 제조하되,The object of the present invention is to produce a 'c' shaped steel through a plurality of rolling mills constituting rough rolling, intermediate rolling, finishing rolling after heating the rolled material,

상기 다수의 압연기 중 최종 압연기로 'ㄷ'자 형강의 웨브부와 플랜지부에 각각 접촉되는 상,하, 좌,우 압연 롤을 구비한 유니버셜 압연기를 사용하여 최종 압연하는 'ㄷ'자 형강 제조 방법을 제공함으로써 해결되는 것이다.A method of manufacturing the 'c' shaped steel, which is finally rolled using a universal rolling mill having upper, lower, left and right rolling rolls respectively contacting the web portion and the flange portion of the 'c' shaped steel among the final rolling mills among the plurality of rolling mills. Is solved by providing

본 발명은 'ㄷ'자 형강을 제조하는데 사용하는 다수의 압연기 중 최종 압연에 사용되는 압연기로 유니버셜 압연기를 사용하여 유니버셜 압연기의 상, 하, 좌, 우 압연 롤의 간격 조정으로 'ㄷ'자 형강의 규격을 용이하게 조정할 수 있으며, 제품의 대량 생산 시 발생하는 오차를 최소화할 수 있는 효과가 있는 것이다.The present invention is a 'c' shaped steel by adjusting the spacing of the upper, lower, left and right rolling rolls of the universal rolling mill by using a universal rolling mill as a rolling mill used for the final rolling among a plurality of rolling mills used to manufacture the 'c' shaped steel. The specification of the can be easily adjusted, and there is an effect that can minimize the errors occurring during mass production of the product.

또한, 유니버셜 압연기는 상, 하, 좌, 우 압연 롤로 분리된 롤 구성을 가져 가 롤의 마모분을 보상하기 위한 경가공량이 적어 롤 원단위가 우수한 효과가 있으며, 적은량의 경가공으로 마모부문을 완전히 보상할 수 있어 공형별 폭관리가 용이한 효과가 있는 것이다.In addition, the universal rolling mill has a roll configuration divided into upper, lower, left, and right rolling rolls, and has a small amount of light processing to compensate for wear of the rolls. Compensation is easy to manage the width of each ball is effective.

본 발명의 바람직한 실시 예를 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.When described in detail with reference to the accompanying drawings a preferred embodiment of the present invention.

도 1은 본 발명에 의해 'ㄷ'자 형강이 제조되는 과정을 순차적으로 도시한 개략도로서, 9개의 압연기를 통해 압연되어 순차적으로 'ㄷ'자 형강으로 제조되는 과정을 나타내고 있다.Figure 1 is a schematic diagram showing a process of manufacturing the 'c' shaped steel in accordance with the present invention in sequence, showing a process of being rolled through nine rolling mills sequentially made of 'c' shaped steel.

도 2는 본 발명에 사용되는 압연기의 구성을 나타내는 블록도로서, 9개의 압연기를 사용한 예를 나타내고 있다.Fig. 2 is a block diagram showing the structure of a rolling mill used in the present invention, and shows an example using nine rolling mills.

도 3은 본 발명의 최종 압연기를 도시한 예시도로서, 최종 압연 사용되는 유니버셜 압연기를 나타내고 있다.3 is an exemplary view showing a final rolling mill of the present invention, showing a universal rolling mill used for final rolling.

도 4는 본 발명에 의해 제조된 'ㄷ'자 형강을 도시한 측면도로서, 본 발명의 일 실시 예를 통해 웨브부와 플랜지부 사이가 직각으로 형성되는 'ㄷ'자 형강을 나타내고 있다.Figure 4 is a side view showing a 'c' shaped steel produced by the present invention, showing a 'c' shaped steel is formed between the web portion and the flange portion at right angles through an embodiment of the present invention.

이하, 본 발명은 연주설비에서 이송된 철강 반제품인 압연 소재(1)를 가열로(미도시)측으로 통과시키면서 가열한 후에, 가열된 압연 소재(1)를 조압연, 중간압연, 사상압연을 구성하는 다수개의 압연기(50) 측으로 통과시켜 압연하는 제조공정을 갖는다.Hereinafter, the present invention is heated while passing the rolled material (1), which is a semi-finished steel conveyed from the performance equipment to the heating furnace (not shown) side, and then the heated rolled material (1) constitutes rough rolling, intermediate rolling, finishing rolling It has a manufacturing process which rolls by passing through the many rolling mill 50 side.

이때, 가열로의 가열조건(온도,시간등)은 기존의 것과 동일하므로 굳이 여기서 한정하지 않으며, 압연기(50)들의 압하력 또한 기존의 공지된 것과 동일하므로 상세한 설명은 생략함을 밝혀둔다.At this time, the heating conditions (temperature, time, etc.) of the heating furnace is the same as the existing one is not necessarily limited here, the rolling force of the rolling mill 50 is also the same as that known in the prior art, and the detailed description is omitted.

이때, 조압연과 중간압연에서는 기존과 동일하게 상,하 압연 롤을 가지는 2단 압연기(High Mill)를 채용함으로써, 철강 반제품 상태의 압연 소재(1)를 절곡된 형태의 플랜지부(2b)와 웨브부(2a)를 형성한다.At this time, in the rough rolling and the intermediate rolling, by adopting a two-stage mill (High Mill) having upper and lower rolling rolls as before, the flanged part 2b of the bent shape of the rolled material 1 in the state of semi-finished steel and The web part 2a is formed.

이어서, 사상압연은 도 3에서 도시한 바와 같이 상, 하, 좌, 우 압연 롤(21, 22, 23, 24)을 갖는 유니버셜 압연기(20)(Universal Mill)를 사용하는 것이다.Subsequently, finishing rolling uses the universal mill 20 (Universal Mill) which has the upper, lower, left and right rolling rolls 21, 22, 23, 24 as shown in FIG.

상기 사상압연은 유니버셜 압연기(20)로 압연한 후 에지 압연기(Edge Mill)로 압연한 후 최종 압연 시 유니버셜 압연기(20)로 압연하여 'ㄷ'자 형강(2)의 압연을 완료하여 제품을 생산하는 것이다.The finishing rolling is rolled by the universal mill (20) and then rolled by the edge mill (Edge Mill) and then rolled by the universal mill (20) in the final rolling to complete the rolling of the 'c' shaped steel (2) to produce a product It is.

상기 에지 압연기는 압연 소재(1)의 상,하 및 좌,우측 부위까지 압연 롤의 압하력이 전달되는 것으로 공지된 것이므로 상세한 설명은 생략함을 밝혀둔다.Since the edge rolling machine is known that the rolling force of the rolling roll is transmitted to the upper, lower, left, and right portions of the rolled material 1, a detailed description thereof will be omitted.

더 상세히 설명하면, 조압연, 중간압연, 사상압연을 구성하는 압연기(50)는 제 1~9 압연기(50A,50B,50C,50D,50E,50F,50G,50H,50I)로 구성되고, 그중 조압연과 중간압연을 구성하는 압연기는 제 1~6 압연기(50A,50B,50C,50D,50E,50F)이며, 사상압연을 구성하는 압연기는 제 7~9 압연기(50G,50H,50I)로 구성된다.In more detail, the rolling mill 50 constituting rough rolling, intermediate rolling, finishing rolling is composed of the first to ninth rolling mills 50A, 50B, 50C, 50D, 50E, 50F, 50G, 50H, 50I, among which The rolling mill constituting rough rolling and intermediate rolling is the first to sixth rolling mills (50A, 50B, 50C, 50D, 50E, 50F), and the rolling mill constituting finishing rolling is the seventh to ninth rolling mills (50G, 50H, 50I). It is composed.

그중 조압연과 중간압연의 제 1~6 압연기(50A,50B,50C,50D,50E,50F)는 상,하 2단식 압연기(High Mill)를 채택하여 웨브부(2a)와 플랜지부(2b)의 연결 부위가 직각(여기서 정확한 직각은 아니지만 직각인 90°에 가까운 각도) 형태를 갖도록 형성시킨다.Among them, the first and sixth rolling mills 50A, 50B, 50C, 50D, 50E, and 50F of the rough rolling and the intermediate rolling adopt the upper and lower two-stage rolling mills (High Mill) to make the web part 2a and the flange part 2b. The connection site of is formed to have a right angle (here, not close to the right angle, but right angle 90 degrees) form.

사상압연을 구성하는 압연기중 제 7,9 압연기(50G,50I)는 유니버셜 압연기(20)를 채택하여 웨브부(2a)와 플랜지부(2b)의 연결 부위인 내측 모서리 부위를 직각 형태로 형성함과 아울러, 제 8 압연기(50H)는 에지 압연기를 채택하여 플랜지부(2b)의 단부를 직각 형태로 형성한다.The seventh and ninth rolling mills 50G and 50I of the rolling mill constituting the finishing rolling adopt the universal rolling mill 20 to form the inner edge portion, which is the connection portion between the web portion 2a and the flange portion 2b, at right angles. In addition, the 8th rolling mill 50H adopts an edge rolling mill, and forms the edge part of the flange part 2b in a right angle form.

즉, 제 1~6 압연기(50A,50B,50C,50D,50E,50F)에서는 철강 반제품 상태의 압연 소재(1)를 웨브부(2a)의 양단에 일측으로 플랜지부(2b)가 돌출되는 형태로 형성시킨 후에, 제 7~9 압연기(50G,50H,50I)에서 플랜지부(2b)의 두께를 일정하게 평행한 구조를 갖도록 형성시킴과 아울러 플랜지부(2b)의 단부를 직각 형태로 형성시키는 것이다.That is, in the first to sixth rolling mills 50A, 50B, 50C, 50D, 50E, and 50F, the flanged portion 2b protrudes from one end of the web portion 2a to the rolled material 1 in a semi-steel state. After forming, the thickness of the flange portion 2b in the seventh to ninth rolling mills 50G, 50H, 50I is formed to have a constant parallel structure, and the ends of the flange portion 2b are formed at right angles. will be.

이러한 방식으로 제조된 'ㄷ'자 형강(2)은 도 4에 도시된 바와 같이, 웨브부(2a)의 양단에 플랜지부(2b)가 서로 대칭되는 구조를 가지며, 웨브부(2a)와 플랜지부(2b)가 연결되는 부위가 90°에 가까운 각도를 갖게 되고, 플랜지부(2b)의 두께가 서로 일정하게 동일한 두께로 평행한 구조로 형성되어 있다.The 'c' shaped steel 2 manufactured in this manner has a structure in which the flange portions 2b are symmetrical to each other on both ends of the web portion 2a, as shown in FIG. 4, and the web portion 2a and the plan The part to which the branch part 2b is connected has an angle close to 90 degrees, and the thickness of the flange part 2b is formed in the structure parallel to the same thickness uniformly.

본 발명은 상기한 바와 같이 최종 압연을 유니버셜 압연기(20)를 사용하므로 상, 하, 좌, 우 압연 롤(21, 22, 23, 24)을 조정하여 'ㄷ'자 형강(2)의 규격을 조정할 수 있어 정해진 규격 내에서 오차 발생을 최소화하여 균일하게 제조할 수 있으며, 'ㄷ'자 형강(2)의 규격 관리가 용이한 것이다. Since the present invention uses the universal rolling mill 20 as described above, the upper, lower, left, and right rolling rolls 21, 22, 23, and 24 are adjusted to adjust the specifications of the 'c' shaped steel 2. It can be adjusted to minimize the occurrence of the error within a predetermined standard can be produced uniformly, it is easy to manage the standard of the 'c' shaped steel (2).

또한 상기 유니버셜 압연기(20)는 상, 하 압연 롤(21, 22), 좌, 우 압연 롤(23, 24)로 'ㄷ' 자 형강(2)의 웨브부(2a)와 플랜지부(2b)를 가압하므로, 압연 중 각 압연 롤에 발생하는 마모분을 보상하기 위한 경가공량이 적은 것이다.In addition, the universal rolling mill 20 is a web portion (2a) and a flange portion (2b) of the 'c' shaped steel (2) by the upper and lower rolling rolls (21, 22), left and right rolling rolls (23, 24) Since pressurizing, the amount of hard processing for compensating for abrasion generated in each rolling roll during rolling is small.

본 발명은 상기한 실시 예에 한정되는 것이 아니라, 본 발명의 요지에 벗어나지 않는 범위에서 다양하게 변경하여 실시할 수 있으며 이는 본 발명의 구성에 포함됨을 밝혀둔다.The present invention is not limited to the above-described embodiments, and various changes can be made without departing from the gist of the present invention, which is understood to be included in the configuration of the present invention.

도 1은 본 발명에 의해 'ㄷ'자 형강이 제조되는 과정을 순차적으로 도시한 개략도Figure 1 is a schematic diagram showing a sequence of a process for producing '' 'shaped steel by the present invention

도 2는 본 발명에 사용되는 압연기의 구성을 나타내는 블록도2 is a block diagram showing the configuration of a rolling mill used in the present invention.

도 3은 본 발명의 최종 압연기를 도시한 예시도3 is an exemplary view showing a final rolling mill of the present invention

도 4는 본 발명에 의해 제조된 'ㄷ'자 형강을 도시한 측면도Figure 4 is a side view showing the '' 'shaped steel produced by the present invention

*도면 중 주요 부호에 대한 설명** Description of the major symbols in the drawings *

1 : 압연 소재 2 : 'ㄷ'자 형강1: rolled material 2: 'c' shaped steel

20 : 유니버셜 압연기20: universal rolling mill

Claims (2)

압연 소재를 가열한 후에 조압연, 중간압연, 사상압연을 구성하는 다수개의 압연기를 통과시켜 'ㄷ'자 형강을 제조하되,After heating the rolled material, a 'c' shaped steel is manufactured by passing through a plurality of rolling machines constituting rough rolling, intermediate rolling, and finishing rolling. 상기 다수의 압연기 중 최종 압연기로 'ㄷ'자 형강의 웨브부와 플랜지부에 각각 접촉되는 상,하, 좌,우 압연 롤을 구비한 유니버셜 압연기를 사용하여 최종 압연하는 것을 특징으로 하는 'ㄷ'자 형강 제조 방법.The final rolling machine of the plurality of rolling mills 'c' characterized in that the final rolling by using a universal rolling mill having upper, lower, left, right rolling rolls in contact with the web portion and flange portion of the 'c' shaped steel, respectively Method of manufacturing shaped steel. 압연 소재를 가열한 후에 조압연, 중간압연, 사상압연을 구성하는 다수개의 압연기를 통과시켜 'ㄷ'자 형강을 제조하되,After heating the rolled material, a 'c' shaped steel is manufactured by passing through a plurality of rolling machines constituting rough rolling, intermediate rolling, and finishing rolling. 상기 사상압연은 상,하, 좌,우 압연 롤을 구비한 유니버셜 압연기로 1차 압연한 후 에지 압연기로 2차 압연하고, 'ㄷ'자 형강의 웨브부와 플랜지부에 각각 접촉되는 상,하, 좌,우 압연 롤을 구비한 유니버셜 압연기를 사용하여 최종 압연하는 것을 특징으로 하는 'ㄷ'자 형강 제조 방법.The finishing rolling is first rolled by a universal rolling mill having up, down, left and right rolling rolls, and then secondly rolled by an edge rolling mill, and the upper and lower contacting web portions and flange portions of 'c' shaped steel, respectively. ',' 'Shaped steel manufacturing method characterized in that the final rolling by using a universal rolling mill having a left, right rolling roll.
KR1020070137623A 2007-12-26 2007-12-26 '?'type steel manufacturing method KR20090069822A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070137623A KR20090069822A (en) 2007-12-26 2007-12-26 '?'type steel manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070137623A KR20090069822A (en) 2007-12-26 2007-12-26 '?'type steel manufacturing method

Publications (1)

Publication Number Publication Date
KR20090069822A true KR20090069822A (en) 2009-07-01

Family

ID=41321427

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020070137623A KR20090069822A (en) 2007-12-26 2007-12-26 '?'type steel manufacturing method

Country Status (1)

Country Link
KR (1) KR20090069822A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101353024B1 (en) * 2013-10-16 2014-01-17 이성구 Reduction in stiffness and shape for keeping mr. roller steel and its manufacturing method
KR101353023B1 (en) * 2013-10-16 2014-01-17 이성구 Reduction in stiffness and media type for the maintenance of his steel and its manufacturing method
CN106111697A (en) * 2016-08-19 2016-11-16 山东钢铁股份有限公司 There is the winged gantry channel-steel milling train of horizontal diplopore rolling groove
CN106269852A (en) * 2016-08-19 2017-01-04 山东钢铁股份有限公司 There is the winged gantry channel-steel milling train of diplopore rolling groove
KR102094174B1 (en) * 2019-03-08 2020-03-27 박동조 a device that attaches two-sided adhesive tape to the surface of a frame by attaching it to a steel frame manufacturer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101353024B1 (en) * 2013-10-16 2014-01-17 이성구 Reduction in stiffness and shape for keeping mr. roller steel and its manufacturing method
KR101353023B1 (en) * 2013-10-16 2014-01-17 이성구 Reduction in stiffness and media type for the maintenance of his steel and its manufacturing method
CN106111697A (en) * 2016-08-19 2016-11-16 山东钢铁股份有限公司 There is the winged gantry channel-steel milling train of horizontal diplopore rolling groove
CN106269852A (en) * 2016-08-19 2017-01-04 山东钢铁股份有限公司 There is the winged gantry channel-steel milling train of diplopore rolling groove
KR102094174B1 (en) * 2019-03-08 2020-03-27 박동조 a device that attaches two-sided adhesive tape to the surface of a frame by attaching it to a steel frame manufacturer

Similar Documents

Publication Publication Date Title
EP3167974B1 (en) Sector shaped section continuous casting machine for heavy reduction and corresponding heavy reduction method
KR20090069822A (en) '?'type steel manufacturing method
CN109513745B (en) Method for rolling wide and thin plate by wide and thick plate rolling mill
KR20120041241A (en) Device and method for producing a thin hot-rolled strip
CN102284482B (en) Method for effectively controlling horizontal-edge crack of medium-thickness plate
US9352368B2 (en) Method and plant for producing metal rolled products
KR20090037128A (en) Paralled flange channel and method for manufacturing the same
US8807201B2 (en) Device and method for horizontal casting of a metal band
JP2020196049A (en) Manufacturing method for hat-shaped steel sheet pile
CN114888083B (en) Method for rolling wide sheet by medium plate mill
EP2762241B1 (en) Hot slab shape control equipment and shape control method
KR20090067442A (en) Rod type steel manufacturing method
JPH0244601B2 (en)
KR20090069819A (en) '?'type steel manufacturing method
CN210817368U (en) Equipment for eliminating edge black line defect of large-width steel plate rolled material
JP4760403B2 (en) Thermal crown control device, rolling mill, and metal strip manufacturing method using the rolling mill
Konovalov et al. Benefits of Steckel mills in rolling
CN103286157B (en) Hot rolling method of metallurgical bonding wear-resistant composite tube
KR20090069820A (en) '?'type steel manufacturing method
JP6589755B2 (en) Intermediate universal rolling method for section steel with flange
EP3257597B1 (en) H-shaped steel production method
JP2001219211A (en) Method for controlling width in hot rolling
KR101438774B1 (en) Rolling mill and rolling method
KR101433432B1 (en) Roll design method for formming chamfer, apparatus and method for manufacturing steel plate using the same
JP5903826B2 (en) Hot slab sizing rolling method

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application