EP0329132B1 - Fertigwalzverfahren für Profile - Google Patents

Fertigwalzverfahren für Profile Download PDF

Info

Publication number: EP0329132B1
Authority: EP; European Patent Office
Prior art keywords: rolling; profiled; sections; profiled sections; profiles
Prior art date: 1988-02-17
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.): Expired - Lifetime

Application number

EP89102664A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP0329132A3 (de

EP0329132A2 (de

Inventor

Horst Willeke

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.)

Preussag Stahl AG

Original Assignee

Preussag Stahl AG

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.)

1988-02-17

Filing date

1989-02-16

Publication date

1993-09-15

1989-02-16 Application filed by Preussag Stahl AG filed Critical Preussag Stahl AG

1989-02-16 Priority to AT89102664T priority Critical patent/ATE94433T1/de

1989-08-23 Publication of EP0329132A2 publication Critical patent/EP0329132A2/de

1991-01-02 Publication of EP0329132A3 publication Critical patent/EP0329132A3/de

1993-09-15 Application granted granted Critical

1993-09-15 Publication of EP0329132B1 publication Critical patent/EP0329132B1/de

2009-02-16 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- B21B1/088—H- or I-sections

Definitions

the invention relates to a method and a rolling stand and a rolling mill for rolling profiles according to the preambles of claims 1, 2, 5 and 8.
Profiles are formed from billets, blocks or slabs in several work stages and passes and then calibrated to their final dimensions.
the gray rolling mill with two rolling stands arranged one behind the other is still used today in rolling mills for H, I or double T profiles with dimensions of up to 1000 mm, since additional stands cause enormous tool costs.
the horizontal rollers / rollers process the web and the flanges at the same time, two vertical rollers finish the flanges from the outside.
FR-A 369516 describes a roll stand in which a support roller is arranged between two pressure rollers on both sides of a double-T profile. This roll stand differs from the roll stand of the present invention in the number and arrangement of the support and pressure rollers. A three-roll bending process, as proposed in the present invention, cannot be realized with this roll stand.
the puppet principle has so far not undergone any improvements, so that even newer rolling mills with modified technologies (DE-OS 29 36 680, DE-OS 35 21 949), which for the avoidance of a web center misalignment with symmetrical profiles by biaxial guidance of the profile, unfold the Apply flanges.
Folding out has the further advantage that the incision depth in the forming rolls can be kept low and these can therefore be reworked more often and can be designed for a longer service life.
Both the gray principle and the doll method have major disadvantages in the production of parallel-flange carriers.
the advantage of the gray principle of not being able to use many rollers is partially offset by the large amount of frictional wear on the forming rollers and the large relative speeds between the rolling stock flanges and the forming surfaces of the rollers.
the number of regrinds is limited by the deeply cut caliber shape, since the rollers cannot have any diameter. This frictional wear is considerably less with the doll process for beams and with production processes for other profiles, but at least one complete finishing stand must be installed for the final folding (folding calibration) of the outer profile sections.
the usual finishing stand must be arranged at a distance of more than one length of rolling stock behind the last upsetting stand, as a result of which such a rolling mill requires a large amount of space.
the method according to the invention enables a material-calibrated folding calibration of profiles after the last upsetting stitch and can be integrated on-line in a rolling mill.
the process can be used in continuous rolling mills as well as reversing rolling mills for the final, non-compressive forming of profiles. There are no relative speeds between the tool (caliber roll) and the rolling stock; this reduces tool wear to a minimum.
essentially cylindrical rollers or rollers are used, which can be designed in such a way that profiles of different widths can be calibrated in a folding manner. This leads to a reduction in the caliber rolls to be kept.
Both solution variants according to the invention are characterized in that the first profile section - in the case of H-profiles, for example, the web - is not deformed by upsetting or buckling / bending or loses its dimensional accuracy because this profile section does not have to undergo any significant deformation.
the known "drawing empty” or incomplete folding of the second profile sections or flanges in the region of the transition between the profile sections is avoided. Folding out only a part of the later again folding-calibrating profile section supports this procedural measure.
the solution according to the invention to support the first profile sections during the folding calibration, enables the use of the conventional universal roll stands without the acquisition of new roll sets.
the upper and lower rollers previously used, for example, in the production of H-profiles are only exchanged for narrower upper and lower rollers of the next smaller profile height, which do not touch the flanges. This is an astonishingly simple solution for the previously wear-prone folding calibration of large profiles.
Adjacent second profile sections that are to be folded into a rolling plane can be formed with a pressure roller.
Profile sections that can be folded symmetrically should be calibrated at the same time; This results in a balance of forces between the three-roller bending systems arranged on both sides of the profile when finishing H, I, U and double-T profiles with the same flange geometry.
At least one pressure roller which can be adjusted in the direction of the roller plane, with a counter roller lying in front and behind, is required for each profile section to be calibrated.
the support rollers can be made very small because they only have to absorb the reaction forces.
the axes of the support rollers can be rigidly aligned in accordance with the profile to be rolled, while the pressure roller is designed to be adjustable depending on the rolling stock material, profile thickness and folding angle.
the pressure roller must be arranged on the profile side to which the profile sections to be calibrated are folded out. For most symmetrical profiles, it is therefore advisable to fold adjacent profile sections with a pressure roller.
the feed drive for the profile can also be dimensioned small.
a drive can be coupled to the pressure roller.
one or more of the support rollers can also be provided with a traction or thrust drive.
the three-roll bending roll stand can be arranged directly behind the last upsetting rolls. In reversing rolling mills, the three-roll bending mill stand is swiveled into the rolling plane from a rest position after the penultimate compression stitch.
the finishing stands for the folding of the profiles were previously arranged one length behind the last upsetting stand.
the new process enables a drive-free folding calibration by taking advantage of the forced feed of the profile through the last compression frame. Only the end of the profile has to be conveyed further after leaving the upsetting stand by means of a switchable drive on the three-roller bending roll stand or by a separate driver. This arrangement makes it possible to make rolling mills shorter by one length of rolling stock.
a double-T profile 1 of 500 mm high with 15 mm thick web 3 and 28 mm thick flanges 2 was rolled out in the last compression frame of a rolling mill, not shown, to a nominal flange width of 300 mm (FIG. 1).
the flange sections 2 b were unfolded during the reversing operation, so that the side rolls of the compression frame, which were complementary to the flange sections 2 a, 2 b, could guide the profile 1 centrally during the rolling process.
the profile 1 was fed to the three-roll bending mill (Fig. 2).
an essentially cylindrical pressure roller 4, 5 with axes 11, 10 perpendicular to the rolling direction Z and to the axial direction X - Y is arranged on both outer sides of the profile 1.
Both pressure rollers 4, 5 are provided with commercially available electric drives, not shown, which drive the pressure rollers 4, 5 according to the direction of rotation shown on axis 10 and cause the delivery of the pressure rollers 4, 5 in the X and Y directions.
a symmetrically designed three-roll bending mill stand with the pressure roller 5 and the counter-rollers 8, 18 and 9, 19 is arranged on the rigid axes 14 and 15, respectively.
the perspective view clearly shows the folding calibration process of the flange section 2 b in the bending line B between the three rollers 5, 8, 9.
the finished double T-section 1 has straight, parallel flanges 2.
Fig. 3 shows a T-profile with web 21, the flange portions 20 are folded out symmetrically to the web 21 so that the web 21 is formed in the middle during rolling.
the flange sections 20 can be hingedly calibrated with a three-roll bending mill similar to that in FIG.
the process is not limited to symmetrical profiles; In the same way, isosceles or isosceles angle profiles or U profiles and similar rolling stock can be finished.
the type of roll stands is not limited to a three-roll bending roll stand; if necessary, a double system with two bending lines can be realized with two pressure rollers and three counter rollers. The principle of the three-roll bending process is thus retained.
FIG. 4 Another solution for the same problem is shown in FIG. 4.
a wide flange carrier of 900 mm height with parallel flange surfaces, flange width 300 mm, web thickness 20 mm and flange thickness 35 mm was hot-rolled to the stated nominal dimensions with flanges 27 a, b unfolded.
the profile sections 27 a, 27 b are folded by delivering the driven pressure roller 25 (illustration on the left).
the finished profile with a straight flange 30 is shown to scale in the right half of FIG. 4. So that the web 29 does not buckle due to the pressure roller craters, it is supported by the top roller 23 and the bottom roller 24, leaving the 30 mm web / flange radius 28 free. In the absence of contact with the inner flange surfaces, no frictional wear can occur on the support rollers 23, 24.
the invention also includes very narrow support rollers 23, 24 of variable diameter, which support the first profile section or web 29 only to a small width sideways of the radius 28 and do not touch the web 29 in their central region.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Metal Rolling (AREA)
Bending Of Plates, Rods, And Pipes (AREA)
Heat Treatment Of Steel (AREA)

EP89102664A 1988-02-17 1989-02-16 Fertigwalzverfahren für Profile Expired - Lifetime EP0329132B1 (de)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT89102664T ATE94433T1 (de)	1988-02-17	1989-02-16	Fertigwalzverfahren fuer profile.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE3805364		1988-02-17
DE3805364A DE3805364A1 (de)	1988-02-17	1988-02-17	Fertigwalzverfahren fuer profile

Publications (3)

Publication Number	Publication Date
EP0329132A2 EP0329132A2 (de)	1989-08-23
EP0329132A3 EP0329132A3 (de)	1991-01-02
EP0329132B1 true EP0329132B1 (de)	1993-09-15

Family

ID=6347829

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP89102664A Expired - Lifetime EP0329132B1 (de)	1988-02-17	1989-02-16	Fertigwalzverfahren für Profile

Country Status (6)

Country	Link
US (1)	US4942753A (ja)
EP (1)	EP0329132B1 (ja)
JP (1)	JPH01309702A (ja)
AT (1)	ATE94433T1 (ja)
DE (2)	DE3805364A1 (ja)
ES (1)	ES2043907T3 (ja)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3832392C2 (de) *	1988-09-23	1996-07-11	Schloemann Siemag Ag	Formstahl-Walzwerk
US5241735A (en) *	1991-06-10	1993-09-07	Emerson Electric Co.	Radial saw arm construction
US6604397B2 (en)	2001-02-05	2003-08-12	Dietrich Industries, Inc.	Rollforming machine
US6928848B2 (en) *	2003-03-27	2005-08-16	Ford Motor Company	Flanging processes with radial compression of the blank stretched surface
DE10339957B3 (de) *	2003-08-25	2005-01-13	Peiner Träger GmbH	Doppel-T-förmiges Spundwandprofil aus Stahl und Werkzeug zur Herstellung des Spundwandprofils
DE102008050366B4 (de) *	2008-10-02	2010-06-17	Data M Sheet Metal Solutions Gmbh	System zum Kaltwalzprofilieren von Profilen mit veränderlichem Querschnitt
BR112013028861B1 (pt) *	2011-05-13	2021-03-16	Mannstaedt Gmbh	método, aparelho para produzir seções metálicas com uma dimensão de câmera com tolerância restringida e seção laminada
KR101350716B1 (ko) *	2011-11-29	2014-01-14	주식회사 성우하이텍	롤 포밍 방법 및 이를 이용하여 생산되는 성형빔
JP6394408B2 (ja) *	2015-01-16	2018-09-26	新日鐵住金株式会社	Ｈ形鋼の中間ユニバーサル圧延ロール及び中間ユニバーサル圧延機
US10603761B2 (en) *	2016-06-06	2020-03-31	United Technologies Corporation	Deep roll peening system and method
CN109622611B (zh) *	2018-12-20	2024-03-08	山东钢铁股份有限公司	一种带锁口的h型钢及其轧制方法和轧制装置
CN111745049B (zh) *	2020-06-02	2022-06-14	广州众山精密科技有限公司	导轨异型材加工组模及其一种导轨异型材的加工方法
CN112246863B (zh) *	2020-08-25	2023-03-17	山东润金重工科技有限公司	一种h型钢加工方法及装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE240433C (ja) *
FR369516A (fr) *	1906-09-05	1907-01-14	Wilhelm Schroer	Procédé de fabrication des fers profilés en forme de simple ou de double t.
FR370825A (fr) *	1907-10-21	1907-02-20	Hugo Sack	Procédé de laminage de poutrelles à I
DE254977C (de) *	1915-11-23	1912-12-18		Verfahren zum Auswalzen von I- und U-Eisen mit parallelflächigen Flanschen in Universalwalzwerken unter Abbiegen de Flanschen
US1385644A (en) *	1920-01-15	1921-07-26	Alvin L Roberts	Universal mill
US1812246A (en) *	1928-12-27	1931-06-30	William C Oberg	Method of making flanged shapes
US1856269A (en) *	1930-09-25	1932-05-03	Bethlehem Steel Corp	Method and means for rolling channel sections
DE721478C (de) *	1936-04-07	1942-06-06	Ilseder Huette	Vorrichtung zum gleichzeitigen Zurueckbiegen der beim Walzvorgang aufgerichteten Flanschen oder Flanschenenden von doppel-T-foermigen Profileisen
DE219152C (de) *	1959-07-22	1910-02-16		Verfahren und Walzwerk zur Herstellung von I-Profileisen mit parallelflächigen Flanschen
SU599863A1 (ru) *	1975-12-22	1978-04-19	Предприятие П/Я Г-4774	Способ прокатки двутавровых балок
JPS5921681B2 (ja) *	1978-09-12	1984-05-22	川崎製鉄株式会社	Ｈ形鋼の製造方法
JPS55126301A (en) *	1979-03-23	1980-09-30	Sumitomo Metal Ind Ltd	Manufacture of parallel flange channel
JPS58135705A (ja) *	1982-02-06	1983-08-12	Sumitomo Metal Ind Ltd	Ｈ形鋼の圧延方法
JPS60240303A (ja) *	1984-05-16	1985-11-29	Hitachi Ltd	長尺型材の製造方法
DE3521949C2 (de) *	1984-06-25	1994-05-26	Schloemann Siemag Ag	Universalwalzgerüst
JPS6174708A (ja) *	1984-09-19	1986-04-17	Kawasaki Steel Corp	ユニバ−サル圧延機
JPS61283401A (ja) *	1985-06-07	1986-12-13	Nippon Steel Corp	形鋼の熱間圧延法
JPS62282707A (ja) *	1986-05-30	1987-12-08	Nippon Steel Corp	フランジを有する形材の圧延装置列

1988
- 1988-02-17 DE DE3805364A patent/DE3805364A1/de not_active Withdrawn
1989
- 1989-02-15 US US07/311,608 patent/US4942753A/en not_active Expired - Fee Related
- 1989-02-16 EP EP89102664A patent/EP0329132B1/de not_active Expired - Lifetime
- 1989-02-16 AT AT89102664T patent/ATE94433T1/de not_active IP Right Cessation
- 1989-02-16 DE DE89102664T patent/DE58905573D1/de not_active Expired - Fee Related
- 1989-02-16 ES ES89102664T patent/ES2043907T3/es not_active Expired - Lifetime
- 1989-02-16 JP JP1035196A patent/JPH01309702A/ja active Pending

Also Published As

Publication number	Publication date
EP0329132A3 (de)	1991-01-02
ATE94433T1 (de)	1993-10-15
ES2043907T3 (es)	1994-01-01
US4942753A (en)	1990-07-24
DE58905573D1 (de)	1993-10-21
DE3805364A1 (de)	1989-08-31
EP0329132A2 (de)	1989-08-23
JPH01309702A (ja)	1989-12-14

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1989-07-08	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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Publication	Publication Date	Title
EP0256409B2 (de)	1996-09-18	Verfahren zur Herstellung von Formstahl
EP0329132B1 (de)	1993-09-15	Fertigwalzverfahren für Profile
EP0454619B1 (de)	1994-09-07	Zum Zylindrisch-Biegen einer Platte dienende Umformmaschine
DE3636478C2 (de)	1996-10-31	Verfahren zum Walzen von Fertigprofilen aus einem Vorprofil
DE2437545C3 (de)	1978-11-23	Verfahren zum Walzen von Metallstäben
EP0653253B1 (de)	2001-02-28	Verfahren zum Walzen von Fertigprofilen aus einem Vorprofil mittels einer im Reversierbetrieb arbeitenden Walzgerüst-Anordnung
DE2532710A1 (de)	1976-02-12	Walzwerk zur herstellung nahtloser stahlrohre
DE2940473A1 (de)	1981-01-15	Verfahren und vorrichtung zur herstellung von metallprofilen
DE102004003681A1 (de)	2005-08-11	Biegevorrichtung mit Pendelwalzrollen
DE2114346A1 (de)	1972-10-05	Verfahren und Vorrichtung zum Vorwalzen von Brammen bezueglich ihrer Breite
DE3780453T2 (de)	1992-12-17	Walze zum stauchen von flanschen eines walzprofils.
DE69209632T2 (de)	1996-09-19	Verfahren und Vorrichtung zum Walzen von Metallen zur Herstellung von rundem Stabmaterial oder Walzdraht aus rundem Stab- oder Drahtmaterial mit grösserem Durchmesser
DE1934302C3 (de)	1974-04-25	Verfahren und Vorrichtung zum Warmwalzen von Metallbrammen
DE3220921C2 (ja)	1993-05-13
DE69108373T2 (de)	1995-11-23	Führungsvorrichtung für das Walzen von Profilen.
DE69921911T2 (de)	2005-12-15	Rollenlagerung mit Dreiachsenfreiheit
EP2604351A1 (de)	2013-06-19	Walzen von Profilen
DE3317635A1 (de)	1984-11-15	Warmwalzverfahren
DE2529405A1 (de)	1976-08-26	Verfahren zum profilwalzen
DE69109945T2 (de)	1995-11-02	Umkehrbares Walzverfahren.
DE2528850C3 (de)	1979-09-20	Pilgerschrittwalzwerk zum Rohrkaltwalzen
AT390741B (de)	1990-06-25	Walzwerk, insbesondere kaltwalzwerk
DE2034490A1 (en)	1972-01-27	Roller pivot bearing compensator - hydraulically operated
DE1814950B2 (de)	1975-02-27	Universalgerüst zum Herstellen von asymmetrischen, H-förmigen Stahlprofilen
EP0870554B1 (de)	2003-06-11	Walzenstrasse zum Walzen von Flachstahl