EP0908245A1 - Méthode et dispositif pour fabriquer les tubes par laminage à pas de pélerin froid - Google Patents

Méthode et dispositif pour fabriquer les tubes par laminage à pas de pélerin froid Download PDF

Info

Publication number: EP0908245A1
Authority: EP; European Patent Office
Prior art keywords: rolling; stand; roll; roll stand; crank
Prior art date: 1997-10-08
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

EP98250040A

Other languages

German (de)

English (en)

Other versions

EP0908245B1 (fr

Inventor

Horst Ing. Grad. Stinnertz

Michael Dr. Ing. Baensch

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.)

SMS Siemag AG

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.)

1997-10-08

Filing date

1998-02-02

Publication date

1999-04-14

1997-11-06 Priority claimed from DE19750787A external-priority patent/DE19750787C1/de

1998-02-02 Application filed by Mannesmann AG filed Critical Mannesmann AG

1999-04-14 Publication of EP0908245A1 publication Critical patent/EP0908245A1/fr

2002-05-15 Application granted granted Critical

2002-05-15 Publication of EP0908245B1 publication Critical patent/EP0908245B1/fr

2018-02-02 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B21/00—Pilgrim-step tube-rolling, i.e. pilger mills
- B21B21/005—Pilgrim-step tube-rolling, i.e. pilger mills with reciprocating stand, e.g. driving the stand

Definitions

the invention relates to a method and a device for producing pipes, preferably made of high-strength steels or special alloys according to Cold pilger step method with two at least in the rolling direction by means of crank drives At times counter-rotating roll stands with tapering calibrated rollers, driven by racks via pinions, with alternating Roll the direction of rotation over the rolling stock.
crank drives shows roll stands that can be reciprocated at times in opposite directions, the rollers of which roll over Racks are driven with alternating directions of rotation.
the well-known The arrangement provides for the blank in the first roll stand exclusively and without Reduce the diameter of the dome and then the wall thickness in the second roll stand reduce the pipe over a mandrel.
the arrangement of the crank drives is like this chosen that the movements of the two rolling stands together with the Movement of the mandrel bar and gripping of the rollers feed the tube enable in a certain way.
the object of the present invention is a cold pilger rolling process and Device for the production of pipes, in particular from high-strength steels or To create special alloys according to the cold pilger step process, in which a significant increase in rolling performance compared to conventional rolling mills with the least possible additional mechanical effort and without loss of quality becomes possible.
a method is proposed which is characterized in that on the first roll stand the majority and on the second roll stand a smaller part of the forming work and additional Smoothing work is done that in both rolling stands on the one Roll caliber adapted mandrel is rolled reducing and that the Angular offset of the crank drives is chosen so that the forming zone of the first The framework does not coincide with the forming zone of the second framework.
the method according to the invention enables extremely high performance firstly, that in the first roll stand only forming work and none Smoothing is done, which significantly extends the Reduction caliber is usable and no performance reducing Tolerance requirements have to be taken into account while in the second mill stand beside the smoothing work is carried out a significant additional forming work.
the choice of the phase angle between the two stands and the design of the Rolling tools are subject to significantly fewer restrictions if the rolls of the release the tube at a second definable time by separately an annular gap is temporarily formed between the tube and the roller.
the second roll stand is increased by approximately 180 Degrees crank angle offset to the first scaffolding and on which Reduction-free return stroke from the material range from the first frame Appropriate annular gap between rolling stock and roll caliber in which the formed tube is inserted in the first roll stand.
This method is advantageously implemented in that at least the rollers of the second roll stand are cyclically adjustable in angle during rolling.
the Adjustment of the rollers can, according to the invention, by horizontal displacement of the Racks take place, whereby the engagement of the roll caliber relative to the rolling stock is changed.
a device for performing the method is characterized in that the first roll stand as a break-down stand with only working calibers having rollers is formed that the rollers of the second roll stand Working and smoothing calibers have that the rolls of both roll stands with correspondingly calibrated rolling mandrels interact, and that the each other offset crank drives to drive the roll stands above each roll stand assigned individual push rods with vertical axes of rotation are, wherein the two cranks have opposite directions of rotation.
crank drive angle allows rotation and advancing the slug at favorable times and prevents together with further features of the invention that there is a material jam between the Roll stands comes while the main forming work is on the first roll stand is performed.
the opposite direction of rotation of the two cranks allows one favorable balance of mass forces of the first harmonics, making it high Strokes possible compared to a conventional single cold pilger rolling mill do not have to be reduced because the inertia forces due to the chosen construction do not rise.
crank mechanism The mechanical engineering effort for such a crank mechanism is only insignificant higher than for driving a single scaffold.
the arrangement of the crank drives with vertical axes of rotation dispenses with deep foundations for the Mass balance.
the distance between the two roll stands can be e.g. are minimized if according to a further feature of the invention Push rods of each roll stand in superimposed levels or the two roll stands are arranged above the crank mechanism in such a way that the pivot points for the push rods on the two are furthest apart distant parts of the roll stand.
a common crank mechanism with rotating counterweights on the two opposing crank bends is preferably provided for both roll stands, which counterbalances the first order of the inertial forces, while an at least partial compensation of the inertial forces can take place through the interaction of the stand masses.
a phase angle of 90 ° is optimal from the point of view of the balancing of mass forces, because under this condition the second order mass forces also cancel each other out.
difficulties in rolling technology cannot be ruled out with such an arrangement.
the cranks are driven in the same direction of rotation and, with counterweights on the cranks, some of the mass forces of the first order are balanced. The remaining portion of this mass force component is not compensated at all or with counterweights on an intermediate shaft connecting the two cranks via gear wheels, which rotates at the crank speed but in the opposite direction.
the drive of the second roll stand then can preferably be made weaker than that of the first roll stand. This makes the drive of the second scaffolding smaller, lighter and cheaper than that of the first roll stand. A change in the phase angle between the two Scaffolding is easy to implement with two separate crank drives.
the two roll stands in one housing to accommodate driving cranks, but to drive them by separate motors, so that the change in the phase angle of the two cranks is easily possible.
the first order mass balance then requires two rotating weights each crank, such that the greater weight is firmly connected to the crank and the smaller one in relation to the crank e.g. than rotatable around the middle of the crank Eccentric is adjustable.
At least the rollers are excited to adjust the center distance to provide a cyclically usable wedge mechanism of the second roll stand.
Cold pilgrims of thin-walled tubes with small diameters can be used with any e.g. also possible with non-incremental rotary and feed movements.
This thin-walled tube becomes use of a rolling mill according to the invention completed by the second mill stand. Because the pipe in this case is the second Roll stand can be fed in any way, the turning and Feed movement independent of the phase position of the two roll stands can only be determined according to the requirements of the first rolling stand, e.g. also as turning and advancing in both dead centers. With these thin-walled products, the cold vocational process also allows Turning and advancing the tube, even though the rollers roll the tube on the Touch the smooth caliber. It follows that the caliber of the rollers of the second roll stand also extended to the dead center of this roll stand can be.
the invention combines a number of advantages over the prior art. Since the mechanical engineering effort for the rotary and feed drive as well as for the Loaded with new slugs compared to a normal single cold pilger rolling mill is not increased, the rolling mill can be manufactured with a good price-performance ratio become.
the rolling mill can be operated with high stroke rates compared to a normal single rolling mill does not have to be reduced because the Mass forces do not increase due to the scaffolding and crank mechanism arrangement.
the mechanical engineering effort for the crank drive is only slightly higher than that for the drive of just one scaffold.
the Caliber length of the first stand can be fully used for the forming, since a smoothing caliber is not required here and tolerance requirements are not taken into account can stay.
the two roll stands 1 and 2 are so by a common crank mechanism 3 driven that the mass forces of the first order of the two roll stands completely compensate.
the counter-rotating counterweights 4 and 5 (FIG. 2) only the rotary ones are the same in this exemplary embodiment Imbalance from cranks and push rods.
Each roll stand 1 and 2 is only by one of the push rods 11 and 12th driven, which move in superimposed levels. This will thereby causes the articulation point to the first roll stand 1 under the same and to the second roll stand 2 is provided in front of this. Enter ET in the dead center both sets of rolls 7 and 8 free the rolling stock for turning and advancing The rolling outlet dead center AT is at most short for an additional turning Approved.
the illustrated rolling mill according to the invention which is about twice the performance of a conventional rolling mill, is characterized in that the entire turning, Feed and loading device remains unchanged that the oscillating Compensating masses of a conventional rolling mill with a second rolling stand are replaced, and that only the additional roller axes with their Rack and pinion drives are added.
Example 1 describes a classic stainless steel rolling for heat exchanger tubes
Example 2 explains the exploitation of the great ductility of austenitic steels for one greater cross-sectional reduction.
the 5.6 mm advance in the first stand occurs when the 1st stand is in the Infeed and the 2nd scaffold are in the dead center; d. H. the forming in the 1st Scaffolding essentially takes place on its forward stroke when the 2nd scaffolding is on the Return stroke is located. The latter will be in its exit dead center area Feed volume 20 x 1.5 with 5.6 mm length added, which during its Return stroke extended to 20.7 mm.
the second scaffold is given before it begins Vorhubes fed a feed of 20.7 mrn, which at 1.85 times the stretch in 2. Roll out the stand to 38 mm.
Example 2 shows the rolling 33 x 3.5 to 16 x 1 for the conventional rolling mill from “Example 1", however for the rolling mill according to the invention 33 x 3.5 to 12 x 1. Even here, the output in m / h and the throughput in kg / h are doubled increases by almost 50% despite the lower meter weight.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Metal Rolling (AREA)
Laminated Bodies (AREA)

EP98250040A 1997-10-08 1998-02-02 Méthode et dispositif pour fabriquer les tubes par laminage à pas de pélerin froid Expired - Lifetime EP0908245B1 (fr)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
DE19745603		1997-10-08
DE19745603		1997-10-08
DE19750787A DE19750787C1 (de)	1997-10-08	1997-11-06	Verfahren und Vorrichtung zur Herstellung von Rohren nach dem Kaltpilgerschrittverfahren
DE19750787		1997-11-06

Publications (2)

Publication Number	Publication Date
EP0908245A1 true EP0908245A1 (fr)	1999-04-14
EP0908245B1 EP0908245B1 (fr)	2002-05-15

Family

ID=26040860

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP98250040A Expired - Lifetime EP0908245B1 (fr)	1997-10-08	1998-02-02	Méthode et dispositif pour fabriquer les tubes par laminage à pas de pélerin froid

Country Status (6)

Country	Link
US (1)	US5916320A (fr)
EP (1)	EP0908245B1 (fr)
AT (1)	ATE217550T1 (fr)
CA (1)	CA2234218C (fr)
ES (1)	ES2173546T3 (fr)
RU (1)	RU2205075C2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE10241612B3 (de) *	2002-09-07	2004-01-08	Sms Meer Gmbh	Antriebssystem für ein Kaltpilgerwalzwerk
US6997026B2 (en) *	2002-12-12	2006-02-14	Engel Industries, Inc.	Quick change metal stud to hemmed track roll forming system
MX2011001247A (es) *	2008-08-01	2011-05-25	Vavit S R L	Metodo de perfilacion de un tubo de longitud dada.
DE102009007465B3 (de) *	2009-02-04	2010-09-30	Sms Meer Gmbh	Antriebssystem für ein Walzwerk, insbesondere für ein Kaltpilgerwalzwerk
DE102011004203A1 (de) *	2011-02-16	2012-08-16	Sandvik Materials Technology Deutschland Gmbh	Vorrichtung mit einer Mehrzahl von Kaltwalzanlagen
DE102016106034A1 (de) *	2016-04-01	2017-10-05	Sandvik Materials Technology Deutschland Gmbh	Kaltpilgerwalzanlage und Verfahren zum Herstellen eines Rohrs
DE102016106035A1 (de) *	2016-04-01	2017-10-05	Sandvik Materials Technology Deutschland Gmbh	Kaltpilgerwalzanlage und Verfahren zum Herstellen eines Rohres

Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE604909C (de) *	1932-01-01	1934-11-02	Hirsch	Verfahren zum Auswalzen von Rohren auf Pilgerschrittwalzwerken
GB1261106A (en) *	1968-04-09	1972-01-19	Mannesmann Meer Ag	Cold pilger rolling mill
DE2528850A1 (de) *	1975-06-27	1977-01-13	Pljazkovskij	Pilgerschrittwalzwerk zum rohrkaltwalzen
US4052898A (en) *	1976-09-13	1977-10-11	Wean United, Inc.	Crank drive system for cold pilger mills drive or the like
JPS63260607A (ja) *	1987-04-16	1988-10-27	Sumitomo Heavy Ind Ltd	ピルガ−式圧延機の慣性力バランス装置
EP0524711A2 (fr) *	1991-07-22	1993-01-27	MANNESMANN Aktiengesellschaft	Laminoir à pas de pélerin à froid comportant une cage de laminoir mobile en va-et-vient

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3650138A (en) *	1968-09-28	1972-03-21	Giuseppe Persico	Multiple tube-rolling pilger mills
SU505453A1 (ru) *	1974-12-13	1976-03-05	Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский И Конструкторско-Технологический Институт Трубной Промышленности	Инструмент роликового стана холодной прокатки труб
JPS5412256A (en) *	1977-06-28	1979-01-29	Nippon Telegr & Teleph Corp <Ntt>	Detector for electron beam
DE3010526A1 (de) *	1980-03-17	1981-09-24	Mannesmann AG, 4000 Düsseldorf	Pilgerschrittwalzwerk
FR2530503A1 (fr) *	1982-07-21	1984-01-27	Vallourec	Procede de laminage a froid de tubes au moyen d'un laminoir a pas de pelerin et dispositif pour la mise en oeuvre du procede
DE4234394C1 (de) *	1992-10-07	1993-11-04	Mannesmann Ag	Vorschubgetriebe fuer ein kaltpilgerwalzwerk
US5351515A (en) *	1993-01-19	1994-10-04	Sandvik Special Metals Corporation	Apparatus and method for reducing the diameter of a cylindrical workpiece
DE4336422C2 (de) *	1993-10-20	1996-10-24	Mannesmann Ag	Kurbeltrieb für ein Kaltpilgerwalzwerk

1998
- 1998-02-02 AT AT98250040T patent/ATE217550T1/de active
- 1998-02-02 ES ES98250040T patent/ES2173546T3/es not_active Expired - Lifetime
- 1998-02-02 EP EP98250040A patent/EP0908245B1/fr not_active Expired - Lifetime
- 1998-02-05 RU RU98103155/02A patent/RU2205075C2/ru not_active IP Right Cessation
- 1998-02-27 US US09/032,649 patent/US5916320A/en not_active Expired - Lifetime
- 1998-04-06 CA CA002234218A patent/CA2234218C/fr not_active Expired - Fee Related

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE604909C (de) *	1932-01-01	1934-11-02	Hirsch	Verfahren zum Auswalzen von Rohren auf Pilgerschrittwalzwerken
GB1261106A (en) *	1968-04-09	1972-01-19	Mannesmann Meer Ag	Cold pilger rolling mill
DE2528850A1 (de) *	1975-06-27	1977-01-13	Pljazkovskij	Pilgerschrittwalzwerk zum rohrkaltwalzen
US4052898A (en) *	1976-09-13	1977-10-11	Wean United, Inc.	Crank drive system for cold pilger mills drive or the like
JPS63260607A (ja) *	1987-04-16	1988-10-27	Sumitomo Heavy Ind Ltd	ピルガ−式圧延機の慣性力バランス装置
EP0524711A2 (fr) *	1991-07-22	1993-01-27	MANNESMANN Aktiengesellschaft	Laminoir à pas de pélerin à froid comportant une cage de laminoir mobile en va-et-vient

Also Published As

Publication number	Publication date
CA2234218C (fr)	2006-05-30
ES2173546T3 (es)	2002-10-16
US5916320A (en)	1999-06-29
ATE217550T1 (de)	2002-06-15
EP0908245B1 (fr)	2002-05-15
RU2205075C2 (ru)	2003-05-27
CA2234218A1 (fr)	1999-04-08

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Publication	Publication Date	Title
DE3717698C2 (fr)	1991-05-02
DE1960328B2 (de)	1973-08-09	Verfahren und walzwerksanlage zum auswalzen einer rohrluppe
EP0908245B1 (fr)	2002-05-15	Méthode et dispositif pour fabriquer les tubes par laminage à pas de pélerin froid
DE3406841C2 (fr)	1988-10-13
DE3129903A1 (de)	1983-02-10	Verfahren und vorrichtung zum herstellen von rohren mit abschnittweise wechselnden aussen- und innendurchmessern
DE1602153B2 (de)	1975-10-16	Schrägwalzwerk zum Reduzieren von Vollquerschnitten
DE2848990C2 (de)	1985-07-25	Verfahren und Vorrichtung zur Herstellung von Rohrluppen
DE1017122B (de)	1957-10-10	Verfahren und Vorrichtung zur Herstellung von Stahlrohren
DE19750787C1 (de)	1998-10-22	Verfahren und Vorrichtung zur Herstellung von Rohren nach dem Kaltpilgerschrittverfahren
DE2517536A1 (de)	1976-11-04	Streckreduzierwalzwerk
DE3323221C3 (de)	1994-10-06	Verfahren und Vorrichtung zum Längen von Rohrluppen
EP2749363A1 (fr)	2014-07-02	Entraînement pour un laminoir à pas de pèlerin
DE10311144B3 (de)	2004-10-28	Verfahren zum Herstellen eines Rohres mit einer Innenprofilierung und Vorrichtung zur Durchführung des Verfahrens
DE2528850C3 (de)	1979-09-20	Pilgerschrittwalzwerk zum Rohrkaltwalzen
DE2403686C2 (de)	1983-05-19	Verfahren zum Herstellen von Metallrohren aus gut verformbaren Werkstoffen, insbesondere aus NE-Metallen, durch Kaltpilgern
DE102012112398B4 (de)	2018-05-30	Pilgerwalzanlage mit einem Kurbeltrieb
EP2121208B1 (fr)	2011-09-14	Procédé et dispositif pour laminer un matériau de laminage dans une installation de laminage, avec un laminoir à cylindres obliques
DE10054268A1 (de)	2002-05-08	Drehantrieb von reziprok abwälzbaren Walzenkalibern eines Kaltpilgerwalzwerkes
DE2905179C2 (de)	1983-08-25	Walzstaffel mit einer Mehrzahl von aufeinanderfolgenden Kalibern
DE2725276B2 (de)	1980-03-27	Kaltpilgerwalzwerk
WO2017167750A1 (fr)	2017-10-05	Laminoir à froid à pas de pèlerin et procédé de fabrication d'un tube
DE4335063C1 (de)	1995-05-04	Kaltpilgerwalzwerk zum Kaltwalzen von Rohren
DE2755040A1 (de)	1979-06-13	Schrittwalzverfahren fuer metallhalbzeuge und walzwerk zu dessen durchfuehrung
DE19804162A1 (de)	1999-12-23	Verfahren zum Walzen von Rohren oder Stangen im Kaltpilger- oder Kaltpilgerschrittverfahren
DE275435C (fr)