GB1308382A - Mechanism in rolling mills for rolll reduction of tubes - Google Patents

Mechanism in rolling mills for rolll reduction of tubes

Info

Publication number
GB1308382A
GB1308382A GB3532670A GB3532670A GB1308382A GB 1308382 A GB1308382 A GB 1308382A GB 3532670 A GB3532670 A GB 3532670A GB 3532670 A GB3532670 A GB 3532670A GB 1308382 A GB1308382 A GB 1308382A
Authority
GB
United Kingdom
Prior art keywords
rolls
tube
motor
bulge
clutch
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.)
Expired
Application number
GB3532670A
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.)
Deutsche Edelstahlwerke AG
Original Assignee
Deutsche Edelstahlwerke 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 Deutsche Edelstahlwerke AG filed Critical Deutsche Edelstahlwerke AG
Publication of GB1308382A publication Critical patent/GB1308382A/en
Expired legal-status Critical Current

Links

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

1308382 Rolling tubes DEUTSCHE EDELSTAHLWERKE AG 21 July 1970 [5 Aug 1969] 35326/70 Heading B3M In a tube rolling mill, in which shouldered rolls 1 reduce a tube 3 supported by a mandrel 2, the rolls can be rapidly withdrawn from the tube by their screw adjusting spindles 6 when a bulge develops in a tube. Such a bulge is to occur at the trailing end of a tube if the ratio of diameter to wall thickness is greater than 10 to 1. A photo-cell 18 detects a bulge and causes withdrawal of the rolls, after a predetermined time delay. After a further time delay movement of the rolls is stopped. The rolls can be rapidly withdrawn either by the normal screwdown motor 8, which for this application is provided with a supplementary high-speed gear or variable transmission, or by the use of a further motor 15. The motor 15 can be coupled by a clutch 17 to the screws 6, following uncoupling of the motor 8 by a clutch 10. A limit switch 20 may be used for stopping withdrawal of the rolls after they have moved a given (adjustable) distance from the tube.
GB3532670A 1969-08-05 1970-07-21 Mechanism in rolling mills for rolll reduction of tubes Expired GB1308382A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691939778 DE1939778A1 (en) 1969-08-05 1969-08-05 Device on shoulder rolling mills for stretch rolling tubes

Publications (1)

Publication Number Publication Date
GB1308382A true GB1308382A (en) 1973-02-21

Family

ID=5741960

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3532670A Expired GB1308382A (en) 1969-08-05 1970-07-21 Mechanism in rolling mills for rolll reduction of tubes

Country Status (5)

Country Link
JP (1) JPS4924792B1 (en)
DE (1) DE1939778A1 (en)
FR (1) FR2056498A5 (en)
GB (1) GB1308382A (en)
SE (1) SE353848B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104540609A (en) * 2012-06-20 2015-04-22 达涅利自动化有限公司 Apparatus to detect the deformity in thickness of tubular elements and corresponding method
CN105499272A (en) * 2015-12-31 2016-04-20 林州凤宝管业有限公司 Pipe binding device of thin wall seamless steel pipe hot mill

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2349693A1 (en) * 1973-10-03 1975-04-30 Kieserling & Albrecht METHOD AND DEVICE FOR ALIGNING STRAND CUTS, IN PARTICULAR RODS AND TUBES
DE3309797A1 (en) * 1983-03-18 1984-09-20 Kocks Technik Gmbh & Co, 4010 Hilden METHOD AND SYSTEM FOR PRODUCING SEAMLESS TUBES
DE19724233C2 (en) * 1997-06-03 2003-10-16 Sms Demag Ag Process for avoiding or reducing trumpet-shaped widenings at the pipe end when cross-rolling thin-walled pipes and device for carrying out the process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104540609A (en) * 2012-06-20 2015-04-22 达涅利自动化有限公司 Apparatus to detect the deformity in thickness of tubular elements and corresponding method
CN105499272A (en) * 2015-12-31 2016-04-20 林州凤宝管业有限公司 Pipe binding device of thin wall seamless steel pipe hot mill

Also Published As

Publication number Publication date
JPS4924792B1 (en) 1974-06-25
FR2056498A5 (en) 1971-05-14
SE353848B (en) 1973-02-19
DE1939778A1 (en) 1971-02-18

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees