CN1530184A - Four line divided bar rolling process - Google Patents

Four line divided bar rolling process Download PDF

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Publication number
CN1530184A
CN1530184A CNA031174698A CN03117469A CN1530184A CN 1530184 A CN1530184 A CN 1530184A CN A031174698 A CNA031174698 A CN A031174698A CN 03117469 A CN03117469 A CN 03117469A CN 1530184 A CN1530184 A CN 1530184A
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CN
China
Prior art keywords
rolling
pass
hole
line
cutting
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CNA031174698A
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Chinese (zh)
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CN1235690C (en
Inventor
夏朝开
杨延
张振宇
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水城钢铁(集团)有限责任公司
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Priority to CN 03117469 priority Critical patent/CN1235690C/en
Publication of CN1530184A publication Critical patent/CN1530184A/en
Application granted granted Critical
Publication of CN1235690C publication Critical patent/CN1235690C/en

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Abstract

A four-strand slitting-rolling technology for rod steel features that the ordinary pass is used in blooming stage, the square pass with R40-55 mm of radian radius is used in the front step of intermediate rolling stage, the flat pass with 1-2 mm of concavity and the special pass with external strands 1 and 4 and internal strands 2 and 3 are used for preslitting and slitting respectively in fine rolling stage, and a splitting wheel is finally used for four-strand splitting.

Description

A kind of bar four-line syncopate rolling technique

Affiliated field

The present invention is relevant with the milling method of metal, and is furthermore, relevant with vertical splitting rolling small bore rolled piece of excellent structural section.

Background technology

The splitting rolling of steel, in the operation of rolling, utilize the effect of pass exactly, a big specification blank is rolled into two or more has identical shaped rolled piece in parallel, utilize the collars of cutting equipment or roll that rolled piece longitudinally is cut into two or more single rolled pieces again.Splitting rolling to pass through usually roughing, in roll and the stages such as finish rolling, blank is rolled into rolled piece in parallel gradually, carry out cutting again.Cutting rolling technology is existing to be used, and the website of Baden, Germany company discloses a kind of cutting rolling technology, and the Chinese patent application part of U.S. Morgan Construction Co application discloses a kind of longitudinal cutting device for rolling mill No. 97126037.0.But common pass mainly is applicable to two wires cutting and three-line syncopate.For being the four-line syncopate of 4 rolled pieces with the vertical cutting of single blank, because 1,4 outer line and 2,3 inner line flow of metal situation differences, common pass is difficult to roll out the qualified identical shaped single rolled piece that has.

Summary of the invention

Purpose of the present invention just provides a kind of bar four-line syncopate rolling technique that adopts special pass and adopt special slitting wheel, can not carry out the rolling difficult problem of four-line syncopate to solve common pass and common slitting wheel.

The inventor is through long term studies test, and the pass schedule of existing common pass especially four-line syncopate and guide and guard system and slitting wheel have been carried out improving repeatedly, obtained the breakthrough of four-line syncopate rolling technique.The inventor still adopts common pass at rough rolling step, and in roll with the finish rolling stage pass improved, the main points of improvement part comprise:

(1) in to adopt the band radius of the radian be the square hole on R40~R55mm arc limit the stage of rolling;

(2) in the flat hole of finish rolling last stage employing with 1~2mm concavity;

(3) finish rolling precutting hole and cutting hole adopt 1,4 outer line and 2,3 inner cross-sectional area to differ 3%~8% special pass;

(4) slitting wheel that adopts forward and backward cutting angle of wedge angle to differ 10~20 ° carries out four-line syncopate.

Adopt the pass of particular design, and the appropriate location adopts above-mentioned special pass to carry out rolling bar in the milling train of each rolling sequence, the slitting wheel that adds particular design at last carries out cutting, identical 4 rolled pieces of shape and size can be obtained, the rolling difficult problem of four-line syncopate can not be carried out thereby solved common pass.

Use bar four-line syncopate technology provided by the invention, large scale rod bar can be syncopated as the Ribbed Bar of diameter below Φ 12mm, specifications such as Φ 8mm, Φ 10mm, Φ 12mm for example can improve the output of milling train, reduce rolling cost effectively, boost productivity.

Description of drawings

Fig. 1 is a diamond hole; Fig. 2 in roll the square hole of the band radius of the radian that the last stage adopts; Fig. 3 is for adopting the flat hole with 1~2mm concavity in the finish rolling last stage; Fig. 4 is 1,4 outer line and the inner long-pending different precutting hole I in 2,3 line hot cross-sections; Fig. 5 is precutting hole II; Fig. 6 is the cutting hole pass; Fig. 7 is the different preceding slitting wheel of angle of wedge angle; Fig. 8 is the back slitting wheel.

The specific embodiment

The bar four-line syncopate roll line of a rolling Φ 12mm specification Ribbed Bar of embodiment, have 17 milling trains, completely adopt no twist rolling, be divided into 3 units: 5 milling trains of roughing unit wherein, take to stand-usual friendship is for arranging, is numbered 1V, 2H, 3V, 4H, 5V; In 6 milling trains of milling train group, take to put down-grade separation is for arranging, is numbered 6H, 7V, 8H, 9V, 10H, 11V; 6 milling trains of mm finishing mill unit are taked to put down-grade separation is for arranging, in have 3 and take to put down-found convertible milling train, be numbered 12H, 13H/V, 14H, 15H/V, 16H, 17H/V.Breakdown pass adopts and the rolling general pass of each specification; In roll employing rhombus-square pass schedule, wherein 6H adopts as accompanying drawing 1 diamond hole, the 7V employing is as the square opening of accompanying drawing 2, its arc limit radius of the radian is R44mm; Special pass schedule is adopted in finish rolling, and wherein 12H adopts the flat hole as the band 1mm concavity of accompanying drawing 3, and 13H/V adopts the precutting hole I as accompanying drawing 4 passes, and 14H adopts the precutting hole II as accompanying drawing 5 passes, and 15H/V adopts the cutting hole as accompanying drawing 6 passes.Preceding slitting wheel such as accompanying drawing 7, forward and backward cutting angle of wedge angle differs 16 °; Back slitting wheel such as accompanying drawing 8 are installed in after the 15H/V milling train.Pieces of bar stock successively by 5 milling trains of roughing, in two milling trains of 6H, 7V (8H, 9V, 10H, 11V cross for empty) of rolling and 4 milling trains of 12H, 13H/V, 14H, 15H/V of finish rolling, after being rolled into shape gradually, be cut into 4 Φ 12mm specification Ribbed Bar with slitting wheel as accompanying drawing 6.

Claims (1)

1 one kinds of bar four-line syncopate rolling techniques, through roughing, in roll and the stage such as finish rolling, gradually blank is rolled into rolled piece in parallel, carry out cutting with slitting wheel again, obtain identical 4 rolled pieces of shape and size, feature of the present invention comprises:
(1) in to adopt the band radius of the radian be the square hole on R40~R55mm arc limit the stage of rolling;
(2) in the flat hole of finish rolling last stage employing with 1~2mm concavity;
(3) finish rolling precutting hole and cutting hole adopt 1,4 outer line and 2,3 inner cross-sectional area to differ 3%~8% special pass;
(4) slitting wheel that adopts forward and backward cutting angle of wedge angle to differ 10~20 ° carries out four-line syncopate.
CN 03117469 2003-03-13 2003-03-13 Four line divided bar rolling process CN1235690C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03117469 CN1235690C (en) 2003-03-13 2003-03-13 Four line divided bar rolling process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03117469 CN1235690C (en) 2003-03-13 2003-03-13 Four line divided bar rolling process

Publications (2)

Publication Number Publication Date
CN1530184A true CN1530184A (en) 2004-09-22
CN1235690C CN1235690C (en) 2006-01-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
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CN (1) CN1235690C (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1325180C (en) * 2004-07-29 2007-07-11 摩根建设公司 Method of continuously hot rolling a heated billet into a plurality of finished products
CN100337762C (en) * 2005-07-19 2007-09-19 江苏沙钢集团有限公司 Bar multi wire cutting rolling technology
CN101530859B (en) * 2008-03-12 2012-11-21 新疆八一钢铁股份有限公司 6-line splitting and rolling technology for deformed steel bar with small section
CN102814320A (en) * 2011-06-10 2012-12-12 新疆八一钢铁股份有限公司 Four-line splitting rolling technology for fai 12mm round steel
CN102873089A (en) * 2012-10-09 2013-01-16 四川省川威集团有限公司 System for producing ribbed bar by quartered hot rolling production line
CN102909218A (en) * 2012-09-29 2013-02-06 河北唐银钢铁有限公司 Medium- and finish-rolling pass structure for four-strand slitting in continuous rolling of phi12 deformed bars
CN102989763A (en) * 2012-11-26 2013-03-27 首钢总公司 Production method of four-segment high-strength aseismic reinforcement
CN103071674A (en) * 2012-12-28 2013-05-01 天津钢铁集团有限公司 Four-line segmentation rolling technology of deformed steel bar with diameter of 10mm
CN103230940A (en) * 2013-04-11 2013-08-07 首钢总公司 Controlling method for reduction of four-strand slitting line differences and structure property differences
CN104096711A (en) * 2014-07-08 2014-10-15 江苏永钢集团有限公司 Skipping device shared for multi-line segmenting
CN104169012A (en) * 2012-02-24 2014-11-26 丹尼尔和科菲森梅克尼齐有限公司 Method for controlling a two continuous strands rolling plant

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1325180C (en) * 2004-07-29 2007-07-11 摩根建设公司 Method of continuously hot rolling a heated billet into a plurality of finished products
CN100337762C (en) * 2005-07-19 2007-09-19 江苏沙钢集团有限公司 Bar multi wire cutting rolling technology
CN101530859B (en) * 2008-03-12 2012-11-21 新疆八一钢铁股份有限公司 6-line splitting and rolling technology for deformed steel bar with small section
CN102814320A (en) * 2011-06-10 2012-12-12 新疆八一钢铁股份有限公司 Four-line splitting rolling technology for fai 12mm round steel
CN102814320B (en) * 2011-06-10 2015-08-19 新疆八一钢铁股份有限公司 The four-line syncopate rolling mill practice of Φ 12mm round steel
CN104169012A (en) * 2012-02-24 2014-11-26 丹尼尔和科菲森梅克尼齐有限公司 Method for controlling a two continuous strands rolling plant
CN104169012B (en) * 2012-02-24 2016-01-06 丹尼尔和科菲森梅克尼齐有限公司 For controlling the method for the rolling equipment of two continuous wires
CN102909218A (en) * 2012-09-29 2013-02-06 河北唐银钢铁有限公司 Medium- and finish-rolling pass structure for four-strand slitting in continuous rolling of phi12 deformed bars
CN102873089B (en) * 2012-10-09 2015-06-17 四川省川威集团有限公司 System for producing ribbed bar by quartered hot rolling production line
CN102873089A (en) * 2012-10-09 2013-01-16 四川省川威集团有限公司 System for producing ribbed bar by quartered hot rolling production line
CN102989763A (en) * 2012-11-26 2013-03-27 首钢总公司 Production method of four-segment high-strength aseismic reinforcement
CN103071674A (en) * 2012-12-28 2013-05-01 天津钢铁集团有限公司 Four-line segmentation rolling technology of deformed steel bar with diameter of 10mm
CN103230940A (en) * 2013-04-11 2013-08-07 首钢总公司 Controlling method for reduction of four-strand slitting line differences and structure property differences
CN104096711A (en) * 2014-07-08 2014-10-15 江苏永钢集团有限公司 Skipping device shared for multi-line segmenting

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