EP0129497A2 - Laminoir à cylindres obliques coniques - Google Patents

Laminoir à cylindres obliques coniques Download PDF

Info

Publication number
EP0129497A2
EP0129497A2 EP84730041A EP84730041A EP0129497A2 EP 0129497 A2 EP0129497 A2 EP 0129497A2 EP 84730041 A EP84730041 A EP 84730041A EP 84730041 A EP84730041 A EP 84730041A EP 0129497 A2 EP0129497 A2 EP 0129497A2
Authority
EP
European Patent Office
Prior art keywords
rolling
rolling mill
axis
rollers
cross
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.)
Granted
Application number
EP84730041A
Other languages
German (de)
English (en)
Other versions
EP0129497A3 (en
EP0129497B1 (fr
Inventor
Walter Vom Dorp
Heinrich Steinbrecher
Karl Heinz Häusler
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6202182&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0129497(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of EP0129497A2 publication Critical patent/EP0129497A2/fr
Publication of EP0129497A3 publication Critical patent/EP0129497A3/de
Application granted granted Critical
Publication of EP0129497B1 publication Critical patent/EP0129497B1/fr
Expired 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
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • 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)

Definitions

  • the invention relates to a conical cross-rolling mill.
  • the 2-roller boot conical cross-rolling mill which, in contrast to the Mannesmann cross-rolling mill patented in 1885, works with inclined roller axes - which can have an angle of, for example, 30 ° to the roller axis - and therefore the rollers have the shape of a cone.
  • the tapered cross-rolling mill has the advantage of gentle material stress during punching and stretching. In both rolling processes, however, the degrees of stretching are limited, namely about 3: 1 for the barrel cross-rolling mill and, according to current knowledge, for the cone cross-rolling mill about 5; 1. Barrel and cone rolling are known as cross-rolling processes.
  • Characteristic of cross-rolling processes is that the rolling material, ie the wall of the billet or hollow block, flows in width when it is stretched. This flow into the width is inevitably limited by the use of fixed guide shoes or rotating guide disks - known as washer disks - and converted into an elongation in the longitudinal direction.
  • the use of guides is not possible due to space constraints.
  • the caliber opening the so-called roll gap, is enclosed by the 3 rolls. If the wall or hollow block wall thickness were reduced too much, the material would flow so far that it would flow into the spaces between the rolls, as a result of which the rolling process usually breaks down and incorrect rolling occurs.
  • the inclined angle of the rolls realized in the planetary cross-rolling mill could be considered in its tendency to be directed towards the longitudinal rolling.
  • a part of the tensile forces occurring during the rolling of pipes here affects in the longitudinal direction of the rolled material, thereby preventing an excessive Breitun g. To put it simply, this is the effect that allows the rolling of tube blanks with, for example, 10-fold stretching with this type of rolling mill.
  • Such a high stretch makes it possible to roll with higher operating weights than with conventional cross-rolling mills, ie to produce longer blanks, which can be, for example, 70 m.
  • the known planetary cross-rolling mill has a special feature that it has a rotor in which there are 3 rolls that rotate around the tube.
  • the tube blank does not rotate. This arrangement makes it possible to run into the downstream stretch-reducing mill, where the finished pipe is manufactured, without intermediate heating.
  • the object of the invention is to design the conical cross-rolling mill so that the rolling speed and thus the output of the rolling mill can be increased significantly with an improved service life of the conical rolls.
  • Fig. 1 the rolling mill is shown in longitudinal section to the rolling stock axis.
  • the arrangement of the tapered rollers 1, 2, 3 can be seen, which are arranged at an oblique angle between 30 and 75 °, preferably 50 °.
  • the drive rollers 4,5,6 for the tapered rollers 1,2,3 are led out laterally to one side of the rolling mill. On this side, they are connected to the drive unit 13 with the interposition of a gear 12.
  • the tapered rollers can be adjusted radially to the rolling stock axis by adjusting mechanisms 7, the pivot axis for the tapered rollers preferably running parallel to the rolling stock axis.
  • a slat guide On the outlet side of the conical cross-rolling mill according to the invention, a slat guide is provided, which consists of driven inclined rollers 8, 9, 10, drives 14, 15, 16 being connected to the inclined rollers via intermediate gears 17, 18, 19.
  • the management has the task of guiding the billet synchronously with a rotational speed and longitudinal speed corresponding to the speed and longitudinal speed at which the billet exits the rolling mill. With this guidance or support, the rolling mill does not need to apply the required turning and longitudinal force for the emerging billet during rolling. This prevents the billet from twisting during rolling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)
EP19840730041 1983-06-21 1984-04-16 Laminoir à cylindres obliques coniques Expired EP0129497B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3322615 1983-06-21
DE19833322615 DE3322615A1 (de) 1983-06-21 1983-06-21 Kegelschraegwalzwerk

Publications (3)

Publication Number Publication Date
EP0129497A2 true EP0129497A2 (fr) 1984-12-27
EP0129497A3 EP0129497A3 (en) 1985-06-26
EP0129497B1 EP0129497B1 (fr) 1987-09-16

Family

ID=6202182

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840730041 Expired EP0129497B1 (fr) 1983-06-21 1984-04-16 Laminoir à cylindres obliques coniques

Country Status (3)

Country Link
EP (1) EP0129497B1 (fr)
JP (1) JPS603905A (fr)
DE (1) DE3322615A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107716546A (zh) * 2017-10-24 2018-02-23 十堰市双兴净化器有限公司 一种用于螺旋叶片轧辊成型的设备及其工艺方法
EP3450038A1 (fr) * 2017-09-05 2019-03-06 Basque Titanium Alliance S.L. Cage de laminoir pour un laminoir et laminoir universel comprenant ladite cage de laminoir

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU733748A1 (ru) * 1978-01-02 1980-05-15 Предприятие П/Я Г-4361 Рабоча клеть стана поперечно-винтовой прокатки
DE3044672A1 (de) * 1980-11-27 1982-07-22 SMS Schloemann-Siemag AG, 4000 Düsseldorf Schraegwalzwerk zum reduzieren von voll- und hohlquerschnitten
JPS5944124B2 (ja) * 1980-10-11 1984-10-26 エス・エム・エス・シユレ−マン−ジ−マ−ク・アクチエンゲゼルシヤフト 内実又は中空横断面を減少せしめるための傾斜ロ−ル型圧延装置
DE3112781A1 (de) * 1981-03-31 1982-10-07 SMS Schloemann-Siemag AG, 4000 Düsseldorf Schraegwalzwerk zum reduzieren von voll- und hohlquerschnitten
DE3220921A1 (de) * 1982-06-03 1983-12-08 Kocks Technik Gmbh & Co, 4010 Hilden Walzwerksanlage mit einem planetenschraegwalzwerk

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3450038A1 (fr) * 2017-09-05 2019-03-06 Basque Titanium Alliance S.L. Cage de laminoir pour un laminoir et laminoir universel comprenant ladite cage de laminoir
CN107716546A (zh) * 2017-10-24 2018-02-23 十堰市双兴净化器有限公司 一种用于螺旋叶片轧辊成型的设备及其工艺方法

Also Published As

Publication number Publication date
DE3322615A1 (de) 1985-02-21
EP0129497A3 (en) 1985-06-26
EP0129497B1 (fr) 1987-09-16
JPS603905A (ja) 1985-01-10

Similar Documents

Publication Publication Date Title
DE3717698C2 (fr)
DE2645497C2 (fr)
DE1960328A1 (de) Verfahren zur Herstellung von nahtlosem Rohr
DE1927879C2 (de) Verfahren zum Auswalzen von Rohren auf einem Streckreduzierwalzwerk
DE3406841C2 (fr)
DE69702173T3 (de) Walzwerke
DE2333916C2 (de) Kalibrierung der Walzen einer Reduzierwalzstraße für Rohre
DE4308449C2 (de) Walzblock zum Walzen von metallischen Stäben oder Draht
DE19516595C2 (de) Lochwalzverfahren und Lochwalzvorrichtung für nahtlose Stahlrohre
DE2347891C2 (de) Walzstraße zum Streckreduzieren von Rohren
EP0129497B1 (fr) Laminoir à cylindres obliques coniques
DE2258932C3 (de) Kontinuierliches Walzwerk für MetaUbandhalbzeug
DE3914016C1 (fr)
EP0648551A1 (fr) Procédé pour laminer un produit à section circulaire avec une dimension finale précise, prédéterminé et laminoir pour la mise en oeuvre de ce procédé
DE2722201A1 (de) Rollenanordnung zum fuehren eines profilrohlings in einer stranggiessanlage
EP0703014B1 (fr) Procédé pour laminer des blocs creux dans un laminoir de type Assel
DE3445219A1 (de) Walzenkalibrierung fuer kontinuierlich arbeitende stab- und drahtwalzstrassen bzw. -bloecke
DE3121851C2 (de) Walzanlage mit mehreren, hintereinander angeordneten Gerüsten zum kontinuierlichen Walzen von Knüppeln
DE102022004111B4 (de) Verfahren zum Schrägwalzen von Rohlingen mit der im Walzkaliber wirkenden axialen Zugkraft
EP1669141B1 (fr) Procédé pour le réglage de la section des fils sortant d'un train de laminage de fil et train de laminage de fil
DE2450224A1 (de) Verfahren zur veraenderung der wanddickenaenderung beim streckreduzierwalzen nebst walzwerk
DE3028211A1 (de) Walzwerk zum streckreduzieren von rohren
DE2808993C2 (de) Vorrichtung an einem Walzgerüst zur Regelung der Ebenheit von Walzgut
DE2745684C2 (de) Schrägwalzwerk
DE2732496C2 (fr)

Legal Events

Date Code Title Description
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

AK Designated contracting states

Designated state(s): FR GB IT SE

17P Request for examination filed

Effective date: 19841113

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): FR GB IT SE

17Q First examination report despatched

Effective date: 19860912

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): FR GB IT SE

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19880416

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19880417

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: SMS SCHLOEMANN-SIEMAG AG

Effective date: 19880613

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

GBPC Gb: european patent ceased through non-payment of renewal fee
27W Patent revoked

Effective date: 19880903

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state
EUG Se: european patent has lapsed

Ref document number: 84730041.5

Effective date: 19890726