CN103056160A - X-I short-process rolling unit for H-shaped steel - Google Patents

X-I short-process rolling unit for H-shaped steel Download PDF

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Publication number
CN103056160A
CN103056160A CN2013100264537A CN201310026453A CN103056160A CN 103056160 A CN103056160 A CN 103056160A CN 2013100264537 A CN2013100264537 A CN 2013100264537A CN 201310026453 A CN201310026453 A CN 201310026453A CN 103056160 A CN103056160 A CN 103056160A
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CN
China
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rolling
vertical
mill
rolls
shaped
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CN2013100264537A
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Chinese (zh)
Inventor
陈义
谭成楠
李跃林
牛强
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中冶赛迪工程技术股份有限公司
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Priority to CN2013100264537A priority Critical patent/CN103056160A/en
Publication of CN103056160A publication Critical patent/CN103056160A/en

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Abstract

The invention discloses an X-I short-process rolling unit for H-shaped steel. The X-I short-process rolling unit comprises a vertical universal roughing mill, an edging mill and a vertical universal finishing mill which are sequentially arranged; rolls of the vertical universal roughing mill form an X-shaped rolling pass in an enclosing manner, and passes for H-shaped steel flanges are arranged on the upper portion and the lower portion of the X-shaped rolling pass; passes for rolling the H-shaped steel flanges are arranged on roll surfaces of two vertical rolls of the edging mill; and rolls of the vertical universal finishing mill form an I-shaped rolling pass in an enclosing manner, and passes for the H-shaped steel flanges are arranged on the upper portion and the lower portion of the I-shaped rolling pass. The vertical X-I short-process rolling unit for rolling the H-shaped steel has the advantages that metal is easy to flow when X passes are rolled, products are easy to form, abrasion to the rolls can be reduced, and the utilization rate of the rolls is increased; rolled pieces are vertically placed and rolled, so that a large quantity of cooling water cannot be accumulated on the rolled pieces for a long time, the various portions of the rolled pieces are cooled down at a uniform speed, the yield can be increased, and the energy consumption is reduced; and a rolling process is short, and the investment cost is low.

Description

The rolling unit of the short flow process of the X-I of H shaped steel

Technical field

The present invention relates to the rolling unit of H shaped steel, particularly a kind of rolling unit of short flow process of H shaped steel.

Background technology

At present, hot rolled H-shapedly generally be rolled production by universal mill, the upper and lower horizontal roller of universal mill and left and right edger roll surround the cross section of H shaped steel jointly.As described in patent US5553475A, its cross sectional shape is H shape, adopt flat sleeping mode rolled h-section steel beam, the drive roll that its upper and lower horizontal roller drives for band, left and right edger roll is driven voller, rolling intermediate blank is the X-shaped shape, the rolling mode of this horizontal X-H, X groove rolling wherein so that when rolling metal be easy to flow forming, can reduce required power, reduce roll wear, improve the roll utilization rate.But because hot rolling need of production water quench roll, cooling water must accumulate in the groove of H shaped steel, accelerated on the one hand the cooling of web, on the other hand so that the cooling of top and the bottom, H shaped steel cross section is asymmetric, simultaneously because the web of H shaped steel itself is thinner than the edge of a wing, the cooling velocity inhomogeneities that this has also aggravated web and the edge of a wing often causes to produce after the H rolling of sectional iron and is out of shape, such as phenomenons such as web warpage, a wave, off-centre, lumber recovery is low.The existing vertical rolling mode that proposes as described in patent CN 100448557C, carries out the upset of the rolled piece after the roughing vertical rolling, but the tandem rolling mode that adopts, rolling machine frame is many, rolling long flow path, particularly when rolling large and medium-sized H shaped steel, the investment and production cost is high.

Summary of the invention

In view of this, the purpose of this invention is to provide a kind of rolling unit of the short flow process of X-I of H shaped steel, to keep the advantage of X groove rolling, and by the vertical placement of rolled piece is rolled, so that cooling water can not accumulate on rolled piece for a long time, make rolled piece cooling better off, improve lumber recovery; In addition, also make rolling flow process shorter, the investment and production cost.

The rolling unit of the short flow process of the X-I of H shaped steel of the present invention comprises vertical universal roughing mill, edging mill and the vertical universal finishing mill arranged by roughing-edging-finish-rolling process flow sequence, and described edging mill is the vertical edging mill of two rollers or the omnipotent edging mill of four rollers; The roll of described vertical universal roughing mill surrounds the X-shaped rolling groove, and the middle part of described X-shaped rolling groove is the pass of H shape steel web, and the upper and lower of described X-shaped rolling groove is the pass of H section steel flange; Be provided with the pass on the rolled h-section steel beam edge of a wing on the roll surface of two edger rolls of described edging mill; The roll of described vertical universal finishing mill surrounds I shape rolling groove, and the middle part of described I shape rolling groove is the pass of H shape steel web, and the upper and lower of described I shape rolling groove is the pass of H section steel flange.

Further, described vertical universal roughing mill comprises two with vertical rolls and two horizontal rolls that driven by rolled piece of drive unit;

Further, described vertical universal finishing mill comprises two with vertical rolls and two horizontal rolls that driven by rolled piece of drive unit, and the face that the vertical rolls of described vertical universal finishing mill cooperate with the edge of a wing of H shaped steel is taper seat.

Beneficial effect of the present invention:

1, the rolling unit of the short flow process of the X-I of H shaped steel of the present invention adopts the rolling unit rolled h-section steel beam of the short flow process of vertical X-I, and the advantage that metal is easy to flow when having the X groove rolling, product is easy to moulding can reduce roll wear, improves the roll utilization rate.

2, the rolling unit of the short flow process of the X-I of H shaped steel of the present invention, the vertical placement of rolled piece is rolling, so that cooling water can not accumulate on rolled piece for a long time in a large number, rolled piece each several part cooling velocity is more even, thereby can improve lumber recovery, and reduces energy resource consumption.

3, the rolling unit of the short flow process of the X-I of H shaped steel of the present invention, three machine frame rolling mill compactnesses are disposed in order, and reversible back and forth rolling, rolling flow process is shorter, and equipment investment cost is low.

4, the rolling unit of the short flow process of the X-I of H shaped steel of the present invention, the vertical omnipotent edging mill of four rollers can when rolling, by adjusting drafts, make things convenient for the rolling groove of formation demand reciprocal, improves rolling stability, and can effectively reduce product rolling defect.

Description of drawings

Fig. 1 is three rack rolling group schematic diagrames of the rolling unit of the short flow process of X-I of H shaped steel of the present invention;

Fig. 2 is three rack rolling group schematic diagrames of the rolling unit of the short flow process of X-I of H shaped steel of the present invention;

Fig. 3 is the vertical edging mill of the two rollers rolling deformation schematic diagram that the H section steel flange occurs when rolling.

The specific embodiment

The invention will be further described below in conjunction with drawings and Examples.

As shown in Figure 1, the rolling unit of the short flow process of the X-I of present embodiment H shaped steel comprises vertical universal roughing mill 1, edging mill 2 and the vertical universal finishing mill 3 arranged by roughing-edging-finish-rolling process flow sequence, and described edging mill 2 is the vertical edging mills of two rollers; The roll of described vertical universal roughing mill 1 surrounds the X-shaped rolling groove, and the middle part of described X-shaped rolling groove is the pass of H shape steel web 4, and the upper and lower of described X-shaped rolling groove is the pass of H section steel flange 5; Be provided with the pass on the rolled h-section steel beam edge of a wing 5 on the roll surface of two edger rolls of described edging mill 2; The roll of described vertical universal finishing mill 3 surrounds I shape rolling groove, and the middle part of described I shape rolling groove is the pass of H shape steel web 4, and the upper and lower of described I shape rolling groove is the pass of H section steel flange 5.

In the present embodiment, described edging mill 2 is one, certainly in different embodiments, and also can be according to two or 3 edging mills 2 of rolling needs while arranged in order, so that the edging pass of each rolling pass is set flexibly.

The operation of rolling of the rolling unit of the short flow process of the X-I of present embodiment H shaped steel is: at first, the vertical placement of rolled blank enters the X-shaped rolling groove of vertical universal roughing mill 1, and the rolled piece cross section is rolled into the X-shaped shape; Then, rolled blank enters limit, the edging mill 2 rolling edge of a wing, the width of control H section steel flange; At last, rolled blank enters the I shape rolling groove of vertical universal finishing mill 3, and the rolled piece cross section is rolled into I shape, i.e. the H shape of vertical placement.In the operation of rolling, by the rolling shape of product that needs that finally rolls out of roll gap adjustment and reversible reciprocal several passages.

In the present embodiment, described edging mill 2 is the vertical edging mills of two rollers, and equipment cost is low; But when rolling, because the vertical edging mill of two rollers does not reliably support restriction to H section steel flange lateral surface, when the edging drafts is larger or during rolling thin-wall shaped steel etc., distortion as shown in Figure 3 appears in the edge of a wing easily.

Therefore in different embodiments, as shown in Figure 2, described edging mill 2 can adopt the omnipotent edging mill of four rollers to replace the vertical edging mill of two rollers, the vertical omnipotent edging mill of four rollers has a pair of edger roll 6 with drive unit and a pair of driven horizontal roller 7, edger roll 6 is used for the width of control H section steel flange, driven horizontal roller 7 mainly plays a part to support the distortion of the restriction edge of a wing, and four rolls consist of edging pass jointly.Adopt the vertical omnipotent edging mill of four rollers can be reciprocal when rolling, by adjusting drafts, the convenient rolling groove size that forms every time demand.The vertical omnipotent edging function of four rollers improves rolling stability, effectively reduces product rolling defect.

The rolling unit of the short flow process of the X-I of present embodiment H shaped steel adopts the rolling unit rolled h-section steel beam of the short flow process of vertical X-I, and the advantage that metal is easy to flow when having the X groove rolling, product is easy to moulding can reduce roll wear, improves the roll utilization rate; And the vertical placement of rolled piece is rolling, so that cooling water can not accumulate on rolled piece for a long time in a large number, rolled piece each several part cooling velocity is more even, thereby can improve lumber recovery, and reduces energy resource consumption.

As the improvement to present embodiment, described vertical universal roughing mill 1 comprises two, and vertical rolls 8 and rolled piece contact area are large with vertical rolls 8 and two horizontal rolls 9 that driven by rolled piece of drive unit, and driving force is large, can guarantee that rolled piece is stable mobile.

As the improvement to present embodiment, described vertical universal finishing mill 3 comprises two with vertical rolls 10 and two horizontal rolls 11 that driven by rolled piece of drive unit, the face that the vertical rolls 10 of described vertical universal finishing mill cooperate with the edge of a wing of H shaped steel is taper seat, in implementation, the angle of taper seat bus and axis is best in 0-10 ° of scope; The taper seat structure is conducive to metal flow, can reduce roll wear and improve the roll utilization rate; Vertical rolls 10 and rolled piece contact area are large simultaneously, and driving force is large, can guarantee that rolled piece is stable mobile.

Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.

Claims (3)

1. the X-I of a H shaped steel lacks the rolling unit of flow process, it is characterized in that: comprise vertical universal roughing mill, edging mill and the vertical universal finishing mill arranged by roughing-edging-finish-rolling process flow sequence, described edging mill is the vertical edging mill of two rollers or the omnipotent edging mill of four rollers; The roll of described vertical universal roughing mill surrounds the X-shaped rolling groove, and the middle part of described X-shaped rolling groove is the pass of H shape steel web, and the upper and lower of described X-shaped rolling groove is the pass of H section steel flange; Be provided with the pass on the rolled h-section steel beam edge of a wing on the roll surface of two edger rolls of described edging mill; The roll of described vertical universal finishing mill surrounds I shape rolling groove, and the middle part of described I shape rolling groove is the pass of H shape steel web, and the upper and lower of described I shape rolling groove is the pass of H section steel flange.
2. the X-I of described H shaped steel lacks the rolling unit of flow process according to claim 1, it is characterized in that: described vertical universal roughing mill comprises two with vertical rolls and two horizontal rolls that driven by rolled piece of drive unit.
3. the X-I of described H shaped steel lacks the rolling unit of flow process according to claim 1, it is characterized in that: described vertical universal finishing mill comprises two with vertical rolls and two horizontal rolls that driven by rolled piece of drive unit, and the face that the vertical rolls of described vertical universal finishing mill cooperate with the edge of a wing of H shaped steel is taper seat.
CN2013100264537A 2013-01-24 2013-01-24 X-I short-process rolling unit for H-shaped steel CN103056160A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107427875A (en) * 2015-03-19 2017-12-01 新日铁住金株式会社 The manufacture method of H profile steel
CN108472697A (en) * 2016-01-07 2018-08-31 新日铁住金株式会社 The manufacturing method and H profile steel product of H profile steel
CN109642296A (en) * 2016-08-29 2019-04-16 新日铁住金株式会社 Rolled h-section steel beam and its manufacturing method
US10730087B2 (en) 2015-03-19 2020-08-04 Nippon Steel Corporation Method for producing H-shaped steel and H-shaped steel product

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3521949A1 (en) * 1984-06-25 1986-01-02 Schloemann Siemag Ag Method and apparatus for the finish-rolling of sections, in particular I-section beams or rails in a universal stand
US5553475A (en) * 1992-03-27 1996-09-10 Kawasaki Steel Corporation Method for detecting setting errors of clearance between rollers in universal rolling mill, and method for rolling H-shaped steel having favorable flange dimensions utilizing same detecting method
CN1533311A (en) * 2001-07-21 2004-09-29 Sms米尔股份有限公司 X-H rolling method for parallel-flange steel sections (supports)
CN1589983A (en) * 2003-08-27 2005-03-09 鞍钢新轧钢股份有限公司 Short flow path manufacturing method of heavy rail
CN1935402A (en) * 2006-10-14 2007-03-28 马鞍山钢铁股份有限公司 H-type shape steel vertical rolling method and apparatus
CN102247981A (en) * 2011-06-01 2011-11-23 中冶赛迪工程技术股份有限公司 Structural steel rolling production line and production process thereof
CN203030624U (en) * 2013-01-24 2013-07-03 中冶赛迪工程技术股份有限公司 X-I short-process rolling unit for H-shaped steel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3521949A1 (en) * 1984-06-25 1986-01-02 Schloemann Siemag Ag Method and apparatus for the finish-rolling of sections, in particular I-section beams or rails in a universal stand
US5553475A (en) * 1992-03-27 1996-09-10 Kawasaki Steel Corporation Method for detecting setting errors of clearance between rollers in universal rolling mill, and method for rolling H-shaped steel having favorable flange dimensions utilizing same detecting method
CN1533311A (en) * 2001-07-21 2004-09-29 Sms米尔股份有限公司 X-H rolling method for parallel-flange steel sections (supports)
CN1589983A (en) * 2003-08-27 2005-03-09 鞍钢新轧钢股份有限公司 Short flow path manufacturing method of heavy rail
CN1935402A (en) * 2006-10-14 2007-03-28 马鞍山钢铁股份有限公司 H-type shape steel vertical rolling method and apparatus
CN102247981A (en) * 2011-06-01 2011-11-23 中冶赛迪工程技术股份有限公司 Structural steel rolling production line and production process thereof
CN203030624U (en) * 2013-01-24 2013-07-03 中冶赛迪工程技术股份有限公司 X-I short-process rolling unit for H-shaped steel

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107427875A (en) * 2015-03-19 2017-12-01 新日铁住金株式会社 The manufacture method of H profile steel
US10730086B2 (en) 2015-03-19 2020-08-04 Nippon Steel Corporation Method for producing H-shaped steel
CN107427875B (en) * 2015-03-19 2019-09-10 日本制铁株式会社 The manufacturing method of H profile steel
US10730087B2 (en) 2015-03-19 2020-08-04 Nippon Steel Corporation Method for producing H-shaped steel and H-shaped steel product
CN108472697B (en) * 2016-01-07 2019-12-03 日本制铁株式会社 The manufacturing method and H profile steel product of H profile steel
CN108472697A (en) * 2016-01-07 2018-08-31 新日铁住金株式会社 The manufacturing method and H profile steel product of H profile steel
CN109642296A (en) * 2016-08-29 2019-04-16 新日铁住金株式会社 Rolled h-section steel beam and its manufacturing method
CN109642296B (en) * 2016-08-29 2019-11-05 日本制铁株式会社 Rolled h-section steel beam and its manufacturing method

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