EP1232808A2 - Procédé de laminage à froid de tubes en cuivre sans soudure - Google Patents

Procédé de laminage à froid de tubes en cuivre sans soudure Download PDF

Info

Publication number
EP1232808A2
EP1232808A2 EP02000996A EP02000996A EP1232808A2 EP 1232808 A2 EP1232808 A2 EP 1232808A2 EP 02000996 A EP02000996 A EP 02000996A EP 02000996 A EP02000996 A EP 02000996A EP 1232808 A2 EP1232808 A2 EP 1232808A2
Authority
EP
European Patent Office
Prior art keywords
cooling
tube
zone
forming zone
tube blank
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.)
Withdrawn
Application number
EP02000996A
Other languages
German (de)
English (en)
Other versions
EP1232808A3 (fr
Inventor
Erling Roller
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 Group GmbH
Original Assignee
SMS Meer GmbH
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
Application filed by SMS Meer GmbH filed Critical SMS Meer GmbH
Publication of EP1232808A2 publication Critical patent/EP1232808A2/fr
Publication of EP1232808A3 publication Critical patent/EP1232808A3/fr
Withdrawn legal-status Critical Current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
    • B21B19/06—Rolling hollow basic material, e.g. Assel mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B2003/005—Copper or its alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B2045/0227—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
    • B21B25/04—Cooling or lubricating mandrels during operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B9/00—Measures for carrying out rolling operations under special conditions, e.g. in vacuum or inert atmosphere to prevent oxidation of work; Special measures for removing fumes from rolling mills

Definitions

  • the invention relates to a method for producing seamless non-ferrous pipes, in particular of seamless copper pipe from an extruded or extruded Rohrluppe and their subsequent rolling in particular on a Planetary cross rolling mill.
  • Such a manufacturing process for cold rolling copper pipes is in the Document US 4,876,870. It is a process for the production of pipes from non-ferrous metals, such as copper, nickel, zirconium or Titanium or its alloys, made from continuous cast at ambient temperature or extruded stock comprising planetary cold rolling achieve a reduction of at least 70% in a single stitch where due to the reduction as the resistance of the material to the deformation Temperature rises to the crystallization temperature and occurs with copper gives a grain size in the range of 0.005 to 0.050 mm. With copper material the temperature rise during rolling to values between 250 ° C and 750 ° C.
  • non-ferrous metals such as copper, nickel, zirconium or Titanium or its alloys
  • a recrystallization of the structure can be useful in many cases because it further processing is easier. For example. requires a subsequent external ribbing of the tube is a soft annealed structure with low strength because otherwise a ribbing could not be carried out without material defects.
  • Copper is a material that is high without intermediate heat treatment Extensions can be subjected.
  • Cold mitage is therefore a widely used process known in the manufacture of copper pipes. During the rolling process A cooling emulsion is applied to the tube and rollers. Because the cold mit process also has good forming efficiency, leaves the tube Corresponding rolling mill with a temperature of ⁇ 100 ° C.
  • a disadvantage of the planetary skew rolling process is also the fact that soft-annealed copper pipes, although their dimensions are quite possible, cannot be processed directly on drum drawing machines.
  • the tube bundles are usually transported in a horizontal position in so-called Baskets.
  • These baskets are flat round containers that open on top Transport lanes flexibly transported to different locations and with special Lifting devices also stacked or lifted to other transport levels can be. This is made possible by the fact that the baskets are not firmly attached to the Transport means are connected, but only loosely placed or attached.
  • a disadvantage of these baskets is that soft, from the planetary cross roll mill coming pipes on the surface through transportation itself and during subsequent pulling can be damaged because the individual Pipe layers lie on top of each other and when transporting and pulling the Rub the tube out of the baskets. The risk of damage gets bigger the higher the coil weights are.
  • drum drawing machines particularly high because these are compared to continuous straight-line drawing machines pull at multiple times the speed.
  • ACR tubes Air Condition and Refrigeration Tubes
  • the tube bundles are therefore after the planetary cross rolling mill in a vertical position is erected in order to then in this position on the Naturally to be pulled out of slower above-mentioned straight pulling machines.
  • Hooks are usually used for the transport of the suspension bundles
  • Chain tracks are used, which are permanently installed between two locations and whose destinations cannot be controlled freely. This measure binds but you have an inflexible transport system and a slow one Drawing technology.
  • the object of the invention based on proposing a planetary cross-rolling method, which the above Avoids or overcomes disadvantages and difficulties by using Forming process a temperature rise up to recrystallization temperature at least partially prevented, the material in the work hardened state Forming process can leave and thus much better to continue Forming by pulling is suitable; nor should the production process - how in the cold vocational process - step by step back and forth, but continuously progressively.
  • a method for manufacturing seamless Copper tube from a tube blank and its subsequent rolling on one Planetary cross rolling mill with the invention proposed that the tube blank for Formation of a cooling zone in the incoming forming zone of the rolling mill spraying concentrically directed on all sides with cooling media, preferably under high pressure and such an amount of heat is dissipated, that an increase in the temperature of the rolled copper tube, in particular to the recrystallization temperature, is at least partially suppressed.
  • One embodiment provides that the forming heat is dissipated with a heat transfer coefficient> 10,000 W / m 2 K and the length of the cooling zone is determined as K ⁇ 2 U.
  • a further embodiment of the method according to the invention provides that in addition to cooling the forming zone of the rolling mill from the outside, a cooling medium, preferably pure water, through the holding rod of the inner tool is fed into the tube blank in such a way that the forming zone Evaporation removes further heat and the water is evaporated to 100%.
  • a cooling medium preferably pure water
  • Another inventive embodiment of the method provides that on the Secondary cooling is used on the outlet side of the forming zone of the rolling mill is, for example a water chamber flooded with cooling water, to reduce the temperature to achieve the rolled copper pipe to ⁇ 100 ° C.
  • the method according to the invention provides that the secondary cooling is set so that it is directly behind the exiting copper pipe
  • the forming zone of the rolling mill cools, reducing the temperature of the copper pipe can be set to ⁇ 100 ° C with great certainty.
  • the method can advantageously provide that the secondary cooling is placed so close to the cover of the mill stand is that this is sealed against the escape of protective gas with which the cover housing is flooded.
  • the ratio of the diameter of the shell to the thickness of the shell can be changed with D / S ⁇ 5: 1. And finally it is The method is preferably characterized in that the stretching of the tube blank is limited to L ⁇ 8 in the forming zone.
  • Figure 1 shows in a simplified form the roll gap of the planetary cross roll mill.
  • One of three rollers is designated 1, the inner tool 2 and the tube blank with 3.
  • At the point of contact between tube blank 3 and roller 1 begins with the letter U Forming zone. Almost all of the forming work is carried out within this zone, in the following part the pipe is only smoothed.
  • This is preferably pure water or water with additives which promote heat transfer, for example tensides, or additives for exerting a lubricating effect.
  • the nozzle jet (15) is directed onto the tube blank 3 at high pressure and a predetermined spray angle in such a way that a cooling zone K is covered.
  • the length of this cooling zone K is at least 2U. It is taken into account that part of the forming heat, due to the good heat conduction of the copper, flows back into the tube blank 3 during rolling and can already be dissipated here.
  • the pressure of the coolant is adjusted so that a heat transfer coefficient of at least 10,000 W / m 2 K is achieved.
  • the holding rod 7 for the inner tool 2 can also pass through the holding rod 7 for the inner tool 2 preferably by means of a bore 8 with at least one outlet opening 9 pure water can be injected into the tube blank 3 to pass through the evaporation Dissipate heat.
  • the amount of water is adjusted so that the water evaporates as completely as possible.
  • This water cooling preferably consists of a closed one Water chamber 10 with through openings 11 for the tube 4. Against the When viewed in the rolling direction, the cooling water is directed so that it already reaches the pipe immediately after leaving the forming zone of the rolling mill.
  • the water chamber 10 becomes so close the rolling mill stand covers 13 brought in by means of a seal 12 the cover 13 is sealed against the escape of protective gas.
  • the water chamber 10 serves as additional sealing devices for the gas. The between the cover 13 and the water chamber 10 escaping water in the gap 14 and is derived here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
EP02000996A 2001-02-17 2002-01-17 Procédé de laminage à froid de tubes en cuivre sans soudure Withdrawn EP1232808A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10107567 2001-02-17
DE10107567A DE10107567A1 (de) 2001-02-17 2001-02-17 Verfahren zum Kaltwalzen von nahtlosen Kupferrohren

Publications (2)

Publication Number Publication Date
EP1232808A2 true EP1232808A2 (fr) 2002-08-21
EP1232808A3 EP1232808A3 (fr) 2004-09-29

Family

ID=7674466

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02000996A Withdrawn EP1232808A3 (fr) 2001-02-17 2002-01-17 Procédé de laminage à froid de tubes en cuivre sans soudure

Country Status (6)

Country Link
US (1) US6651473B2 (fr)
EP (1) EP1232808A3 (fr)
JP (1) JP2002316201A (fr)
KR (1) KR20020067897A (fr)
CN (1) CN1370640A (fr)
DE (1) DE10107567A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10260399B3 (de) * 2002-12-21 2004-07-01 Wieland-Werke Ag Verfahren und Fertigungslinie zum Herstellen von U-förmig gebogenen Rohren sowie die Verwendung der nach diesem Verfahren hergestellten Rohre
WO2007068439A1 (fr) * 2005-12-13 2007-06-21 Kocks Technik Gmbh & Co. Kg Procede de fabrication d'un tube en cuivre ou en alliage cuivreux
EP3718656A4 (fr) * 2017-11-29 2021-09-15 Nippon Steel Corporation Machine de perçage et procédé de fabrication de tubes métalliques sans soudure la mettant en oeuvre

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI114900B (fi) * 2000-12-20 2005-01-31 Outokumpu Oy Menetelmä ja laitteisto putkien valmistamiseksi
FI114901B (fi) * 2000-12-20 2005-01-31 Outokumpu Oy Menetelmä ja laitteisto putkien valmistamiseksi valssaamalla
US20040134249A1 (en) * 2003-01-09 2004-07-15 Utiashev Farid Zaynullaevich Method and device for making intricately-shaped axisymmetric parts from hardly deformable polyphase alloys
DE10316910B3 (de) 2003-04-12 2004-09-02 Sms Meer Gmbh Verfahren zur Herstellung von Rohren aus metallischem Werkstoff
CN1695839B (zh) * 2004-08-17 2010-07-07 江苏包罗铜材集团股份有限公司 铸锭冷穿、冷扩孔的三辊斜轧方法
KR100690894B1 (ko) * 2005-08-25 2007-03-09 엘지전자 주식회사 왕복동식 압축기의 직접 흡입 장치
CN101850364B (zh) * 2009-10-19 2011-09-07 宁波金田铜管有限公司 一种轧制黄铜管的三辊行星轧制方法
DE102010047868B4 (de) 2009-10-26 2017-01-05 Sms Group Gmbh Verfahren und Vorrichtung zum Herstellen eines Hohlblocks aus einem Block
CN102371288A (zh) * 2010-08-27 2012-03-14 北京有色金属研究总院 一种高精度高强钛合金无缝管材的制备方法
DE102011090098A1 (de) * 2011-12-29 2013-07-04 Sms Siemag Ag Verfahren und Vorrichtung zum Walzen von Walzgut sowie Verwendung eines Kühlschmierstoffes
CN104801545B (zh) * 2015-01-08 2017-06-16 长沙山水节能研究院有限公司 一种轧辊冷却用喷水管
DE102015210259B4 (de) * 2015-06-03 2016-12-15 Sms Group Gmbh Verfahren zum Herstellen von Schlitzrohren aus Blechtafeln
CA3083564C (fr) * 2017-11-29 2022-09-20 Nippon Steel Corporation Machine de percage, barre de mandrin et procede de fabrication de tube metallique sans soudure l'utilisant
US11471923B2 (en) 2017-11-29 2022-10-18 Nippon Steel Corporation Production method of seamless steel pipe
CN112845654B (zh) * 2019-11-12 2023-03-10 新疆大学 一种钛及钛合金大规格无缝管材的制备方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE208746C (fr) *
US1910377A (en) * 1930-03-11 1933-05-23 Becker Leo Method and apparatus for manufacturing tubes
US2103574A (en) * 1934-06-12 1937-12-28 John B Wintercorn Positively controlled tube bore mandrel for tube forming machines
DE1752996A1 (de) 1968-08-19 1971-07-29 Vni I P Metall Mash Arbeitswalzenantrieb fuer Rohrkaltwalzwerk
DE2723506A1 (de) * 1977-05-25 1978-12-14 Kabel Metallwerke Ghh Schraegwalzwerk zum reduzieren von langgestrecktem gut
JPS50103458A (fr) * 1974-01-18 1975-08-15
DE2929401A1 (de) * 1979-07-20 1981-02-05 Kabel Metallwerke Ghh Verfahren zum walzen von in der waerme zur oxidation neigenden metallbloecken zu rohren
DE3123645A1 (de) * 1981-06-15 1982-12-30 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover "verfahren zur herstellung nahtloser kupferrohre"
FI77057C (fi) * 1987-03-26 1989-01-10 Outokumpu Oy Foerfarande foer framstaellning av roer, staenger och band.
DE3914218C2 (de) * 1989-04-27 1994-08-18 Mannesmann Ag Verfahren und Vorrichtung zum Abschrecken eines metallischen langgestreckten, zylindrischen Körpers
JPH0729131B2 (ja) * 1990-10-01 1995-04-05 日本鋼管株式会社 継目無管製造用エロンゲーターのマンドレルバー
JPH05185132A (ja) * 1992-01-10 1993-07-27 Sumitomo Metal Ind Ltd 継目無鋼管の圧延方法
JPH06198311A (ja) * 1993-01-07 1994-07-19 Sumitomo Metal Ind Ltd 穿孔圧延方法及び穿孔圧延機
DE4332136A1 (de) * 1993-09-17 1995-03-23 Mannesmann Ag Herstellverfahren zur nahtlose Rohre aus Nichteisenmetallen, insbesondere Kupfer und Kupferlegierungen
US5699690A (en) * 1995-06-19 1997-12-23 Sumitomo Metal Industries, Ltd. Method and apparatus for manufacturing hollow steel bars

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10260399B3 (de) * 2002-12-21 2004-07-01 Wieland-Werke Ag Verfahren und Fertigungslinie zum Herstellen von U-förmig gebogenen Rohren sowie die Verwendung der nach diesem Verfahren hergestellten Rohre
US7992299B2 (en) 2002-12-21 2011-08-09 Wieland-Werke Ag Method for the economical production of heat exchanger tubes bent in a u-shape
WO2007068439A1 (fr) * 2005-12-13 2007-06-21 Kocks Technik Gmbh & Co. Kg Procede de fabrication d'un tube en cuivre ou en alliage cuivreux
EP3718656A4 (fr) * 2017-11-29 2021-09-15 Nippon Steel Corporation Machine de perçage et procédé de fabrication de tubes métalliques sans soudure la mettant en oeuvre

Also Published As

Publication number Publication date
US20020116971A1 (en) 2002-08-29
JP2002316201A (ja) 2002-10-29
EP1232808A3 (fr) 2004-09-29
CN1370640A (zh) 2002-09-25
KR20020067897A (ko) 2002-08-24
DE10107567A1 (de) 2002-08-29
US6651473B2 (en) 2003-11-25

Similar Documents

Publication Publication Date Title
EP1232808A2 (fr) Procédé de laminage à froid de tubes en cuivre sans soudure
DE69710159T2 (de) Verfahren und einrichtung zum herstellen nahtloser stahlrohre
DE3717698C2 (fr)
DE102012007379B4 (de) Verfahren zum Schrägwalzen von zylindrischen Erzeugnissen
AT391641B (de) Anwendung von inertgas beim herstellen nahtloser rohre sowie werkzeug fuer die anwendung
DE69318520T2 (de) Verfahren zum Verlängern von Metallrohren mittels eines Rohrwalzwerkes mit Dorn
DE2256024A1 (de) Verfahren zum walzen von heissen metallwerkstuecken
DE3027927C2 (fr)
EP3060358B2 (fr) Train de laminage à chaud de bandes d'aluminium et procédé de laminage à chaud d'une bande d'aluminium
DE2454163A1 (de) Verfahren zur steuerung der temperatur von stahl waehrend des heisswalzens auf einer kontinuierlichen heisswalzvorrichtung
DE102013114578A1 (de) Glühofen und Verfahren zum Glühen eines Strangs aus Stahl
DE19513314C2 (de) Verfahren zur Herstellung eines warmgefertigten langgestreckten Erzeugnisses, insbesondere Stab oder Rohr, aus übereutektoidem Stahl
EP1764167B1 (fr) Procédé et laminoir pour la fabrication d'un tube sans soudure
DE69607781T2 (de) Warmbandwalzanlage
EP1463591B1 (fr) Procede et installation de laminage permettant de produire du fil metallique, des barres ou des tuyaux sans soudure
DE69007033T2 (de) Warmwalzverfahren für nahtlose Rohre mit vorausgehender Verringerung des Durchmessers von Halbzeug.
DE3039101A1 (de) Anordnung einer kontinuierlich arbeitenden feinstahl-drahtwalzstrasse zum auswalzen von draht oder rundquerschnitten aus edelstaehlen oder hochwertigen legierungen
WO2015000968A1 (fr) Installation de laminage de coulée continue et procédé de fabrication de produit laminé métallique
EP0648855A1 (fr) Procédé de fabrication de tubes sans soudure en métaux non-terreux, en particulier en cuivre et alliages de cuivre
DE1934302A1 (de) Verfahren und Vorrichtung zum Warmwalzen von Metallbrammen
DE10261632A1 (de) Verfahren und Walzanlage zum Herstellen von Draht, Stäben oder nahtlosen Rohren
DE2548116B2 (de) Vorrichtung zum Abschrecken eines erwärmten MetaUrohres
EP0476793B1 (fr) Laminoir pour étendre des corps creux sur un mandrin
EP1034853A2 (fr) Outil de laminage à froid, à pas de pèlerin, pour la fabrication de tubes nervurés
EP0287503B1 (fr) Procédé et groupe frigorifique de pression pour refroidir un produit continu

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

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20050330