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EP0067906A2 - Procédé de fabrication de tube en cuivre sans soudure - Google Patents

Procédé de fabrication de tube en cuivre sans soudure Download PDF

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Publication number
EP0067906A2
EP0067906A2 EP81110522A EP81110522A EP0067906A2 EP 0067906 A2 EP0067906 A2 EP 0067906A2 EP 81110522 A EP81110522 A EP 81110522A EP 81110522 A EP81110522 A EP 81110522A EP 0067906 A2 EP0067906 A2 EP 0067906A2
Authority
EP
European Patent Office
Prior art keywords
water
tube
pipe
mandrel
rolled
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Withdrawn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
EP81110522A
Other languages
German (de)
English (en)
Other versions
EP0067906A3 (fr
Inventor
Otto Uhlmann
Klaus-Peter Ing.Grad. Uhlmann
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.)
KM Kabelmetal AG
Original Assignee
KM Kabelmetal 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
Application filed by KM Kabelmetal AG filed Critical KM Kabelmetal AG
Publication of EP0067906A2 publication Critical patent/EP0067906A2/fr
Publication of EP0067906A3 publication Critical patent/EP0067906A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • B21B45/023—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes by immersion in a bath
    • 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
    • B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
    • 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
    • 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

Definitions

  • the invention relates to a method for producing seamless copper tubes, in which a red-hot copper block is perforated and stretched by means of a mandrel and two or three inclined rollers, and the rolled tube is introduced into a water basin immediately behind the roller gap.
  • the invention is therefore based on the object of improving the known method in such a way that these inner bubbles no longer arise.
  • the water level of the water basin is lowered at the beginning of the rolling process, so that the rolled tube passes above the level and the tube is sprayed with water from the outside, and that the water level of the water basin is raised, and the beginning of the pipe has emerged from the water tank.
  • the measures according to the invention ensure that no water can enter the open pipe end. External oxidation of the pipe at a point in time when the water level in the water basin is reduced is avoided by spraying with water.
  • the rolled tube is passed through water nozzles arranged at a distance from one another, which spray water onto the tube only when the beginning of the tube has passed through them.
  • a protective gas into the inside of the pipe.
  • This protective gas prevents harmful oxygen from reaching the area in front of the mandrel tip, which, like water vapor, would lead to errors there.
  • the protective gas is introduced through the mandrel rod provided with a longitudinal channel.
  • the invention further relates to a device for carrying out the method, which consists of a pair of diagonal rollers, a mandrel attached to a mandrel bar and a water box arranged behind the roll gap as viewed in the direction of passage.
  • a device for carrying out the method which consists of a pair of diagonal rollers, a mandrel attached to a mandrel bar and a water box arranged behind the roll gap as viewed in the direction of passage.
  • annular spray nozzles which are arranged at a distance from one another are arranged directly behind the roll gap and means are provided on the water tank which make it possible to quickly lower and raise the water level.
  • a copper block 1 is inserted into the roll gap formed by the rollers 2 by means of a plunger (not shown).
  • the rollers 2 are arranged in a roll stand 3. They are slightly inclined so that the copper block 1 is transported further by them and at the same time is rotated about its longitudinal axis.
  • a mandrel 4, which is fastened to a mandrel rod 6, projects into the roll gap.
  • the mandrel rod is guided in a plurality of guides in a manner not shown and fastened to a mandrel rod holder 7.
  • the copper block 1 is rolled over the mandrel 4, so that a tube is formed. After completion of the tube, the mandrel rod 6 is pulled out of the tube with the mandrel 4 and this is thrown off to the side.
  • the tube In order to prevent oxidation of the surface of the tube emerging from the roll gap, the tube enters a water box 8. At the beginning of the rolling process, the water level in the water box 8 is lowered so that the tube does not come into contact with the water in the water box 8.
  • the cooling of the pipe is carried out by several nozzles 5, each of which is switched on as soon as the beginning of the pipe has passed through it. It is essential that no water can penetrate into the interior of the pipe.
  • the last spray nozzle 5 viewed in the direction of flow, which is arranged in the partition 9
  • the water level in the water tank 8 is raised rapidly (dashed line), and the middle nozzles 5 are switched off.
  • the first and last nozzles seen in the direction of flow remain switched on in order to prevent water from escaping from the passage openings.
  • An opening 10, which is connected to a powerful pump, is used for accelerated filling and emptying in the water tank 8.
  • a drain 11 ensures that the water dripping from the pipe can drain.
  • the mandrel rod 6 has an inert gas connection 12, through which inert gas z. B. nitrogen is introduced into the interior of the tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Heat Treatment Of Articles (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP81110522A 1981-06-15 1981-12-17 Procédé de fabrication de tube en cuivre sans soudure Withdrawn EP0067906A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813123645 DE3123645A1 (de) 1981-06-15 1981-06-15 "verfahren zur herstellung nahtloser kupferrohre"
DE3123645 1981-06-15

Publications (2)

Publication Number Publication Date
EP0067906A2 true EP0067906A2 (fr) 1982-12-29
EP0067906A3 EP0067906A3 (fr) 1983-03-30

Family

ID=6134728

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81110522A Withdrawn EP0067906A3 (fr) 1981-06-15 1981-12-17 Procédé de fabrication de tube en cuivre sans soudure

Country Status (2)

Country Link
EP (1) EP0067906A3 (fr)
DE (1) DE3123645A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6651473B2 (en) * 2001-02-17 2003-11-25 Sms Meer Gmbh Cold-rolling seamless copper tubing
CN101994875B (zh) * 2009-08-25 2012-08-22 山东中佳新材料有限公司 无缝铜管的制造方法及冷轧机用的棒芯
CN105436220A (zh) * 2015-12-01 2016-03-30 成都睿达致祥科技有限公司 一种冷轧管机内孔去油装置
CN110695092A (zh) * 2019-10-23 2020-01-17 广东海亮铜业有限公司 一种不间断氮气吹扫系统
CN111417471A (zh) * 2017-11-29 2020-07-14 日本制铁株式会社 无缝钢管的制造方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19604969C2 (de) * 1996-02-02 2000-08-24 Sms Demag Ag Verfahren zur Herstellung von nahtlosen Rohren und Innenwerkzeug
CN102773303B (zh) * 2012-07-16 2014-07-30 中国船舶重工集团公司第七二五研究所 一种铜镍合金大规格厚壁无缝管材制造工艺
DE102019205724A1 (de) * 2019-04-18 2020-10-22 Sms Group Gmbh Kühlvorrichtung für nahtlose Stahlrohre

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE744177C (de) * 1939-05-24 1944-01-11 Dr Fritz Singer Verfahren zur Kaltverformung von durch die vorausgehende Gluehbehandlung mit Oxyd- und Zuenderschichten behafteten Metallrohren
CH339897A (de) * 1954-12-01 1959-07-31 Ici Ltd Verfahren zur Herstellung von mit Aluminium überzogenem Kupferdraht
US3036825A (en) * 1957-05-17 1962-05-29 Eisenmenger Friedrich Process and apparatus for the continuous heat treating of elongated material
FR1460167A (fr) * 1964-11-12 1966-06-17 Southwire Co Procédé et appareil de façonnage à chaud de métaux
DE2356985A1 (de) * 1973-11-15 1975-05-22 Kabel Metallwerke Ghh Verfahren zur herstellung nahtloser metallischer rohre

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2054528C3 (de) * 1970-11-05 1981-07-23 Vsesojuznyj naučno-issledovatel'skij i konstruktorsko-technologičeskij institut trubnoj promyšlennosti, Dnepropetrovsk Vorrichtung zum Härten von Rohren aus der Walzhitze
FR223577A (fr) * 1973-12-11
DE2506418A1 (de) * 1975-02-15 1976-08-26 Kabel Metallwerke Ghh Verfahren zum warmwalzen von metallrohren

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE744177C (de) * 1939-05-24 1944-01-11 Dr Fritz Singer Verfahren zur Kaltverformung von durch die vorausgehende Gluehbehandlung mit Oxyd- und Zuenderschichten behafteten Metallrohren
CH339897A (de) * 1954-12-01 1959-07-31 Ici Ltd Verfahren zur Herstellung von mit Aluminium überzogenem Kupferdraht
US3036825A (en) * 1957-05-17 1962-05-29 Eisenmenger Friedrich Process and apparatus for the continuous heat treating of elongated material
FR1460167A (fr) * 1964-11-12 1966-06-17 Southwire Co Procédé et appareil de façonnage à chaud de métaux
DE2356985A1 (de) * 1973-11-15 1975-05-22 Kabel Metallwerke Ghh Verfahren zur herstellung nahtloser metallischer rohre

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6651473B2 (en) * 2001-02-17 2003-11-25 Sms Meer Gmbh Cold-rolling seamless copper tubing
CN101994875B (zh) * 2009-08-25 2012-08-22 山东中佳新材料有限公司 无缝铜管的制造方法及冷轧机用的棒芯
CN105436220A (zh) * 2015-12-01 2016-03-30 成都睿达致祥科技有限公司 一种冷轧管机内孔去油装置
CN105436220B (zh) * 2015-12-01 2018-02-16 青岛华仁技术孵化器有限公司 一种冷轧管机内孔去油装置
CN111417471A (zh) * 2017-11-29 2020-07-14 日本制铁株式会社 无缝钢管的制造方法
EP3718654A4 (fr) * 2017-11-29 2021-09-08 Nippon Steel Corporation Procédé de fabrication d'un tube d'acier sans soudure
US11471923B2 (en) 2017-11-29 2022-10-18 Nippon Steel Corporation Production method of seamless steel pipe
CN110695092A (zh) * 2019-10-23 2020-01-17 广东海亮铜业有限公司 一种不间断氮气吹扫系统
CN110695092B (zh) * 2019-10-23 2024-06-04 广东海亮铜业有限公司 一种不间断氮气吹扫系统

Also Published As

Publication number Publication date
EP0067906A3 (fr) 1983-03-30
DE3123645A1 (de) 1982-12-30
DE3123645C2 (fr) 1992-06-04

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Designated state(s): AT BE CH FR GB IT LI NL SE

PUAL Search report despatched

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18W Application withdrawn

Withdrawal date: 19830216

RIN1 Information on inventor provided before grant (corrected)

Inventor name: UHLMANN, KLAUS-PETER, ING.GRAD.

Inventor name: UHLMANN, OTTO