GB1193390A - An improved method and apparatus for the manufacture of Steel Tubes - Google Patents

An improved method and apparatus for the manufacture of Steel Tubes

Info

Publication number
GB1193390A
GB1193390A GB37207/68A GB3720768A GB1193390A GB 1193390 A GB1193390 A GB 1193390A GB 37207/68 A GB37207/68 A GB 37207/68A GB 3720768 A GB3720768 A GB 3720768A GB 1193390 A GB1193390 A GB 1193390A
Authority
GB
United Kingdom
Prior art keywords
aug
wall thickness
rolls
fins
tube
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
GB37207/68A
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
Priority claimed from DE1967M0075115 external-priority patent/DE1279600B/en
Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of GB1193390A publication Critical patent/GB1193390A/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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
    • B21C37/202—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with guides parallel to the tube axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

1,193,390. Rolling tubes. MANNESMANN A.G. 5 Aug., 1968 [3 Aug., 1967; 11 Aug., 1967], No. 37207/68. Heading B3M. A steel tube having longitudinal external fins is produced by the grooved rolls 13, 14 of a pilgrim rolling mill, the rolls firstly reducing the wall thickness of a tubular bloom 12, while initially forming fins 15 (Fig. 1), and then bring- ing the fins to their final dimensions without altering the tube wall thickness (Figs. 2, 3). A wholly or partly tapered mandrel 17 is used in conjunction with the rolls, the relationship at any moment between the diameter of the mandrel and the corresponding diameter of the roll pass determining the wall thickness of the tube.
GB37207/68A 1967-08-03 1968-08-05 An improved method and apparatus for the manufacture of Steel Tubes Expired GB1193390A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEM0075032 1967-08-03
DE1967M0075115 DE1279600B (en) 1967-08-11 1967-08-11 Process and roll calibration for rolling seamless tubes with external longitudinal ribs

Publications (1)

Publication Number Publication Date
GB1193390A true GB1193390A (en) 1970-05-28

Family

ID=25988073

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37207/68A Expired GB1193390A (en) 1967-08-03 1968-08-05 An improved method and apparatus for the manufacture of Steel Tubes

Country Status (4)

Country Link
US (1) US3566655A (en)
JP (1) JPS4842542B1 (en)
FR (1) FR1576793A (en)
GB (1) GB1193390A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3688540A (en) * 1969-07-29 1972-09-05 Superior Tube Co Tube rolling mill employing a tapered mandrel and a cluster of rolls that each have specially designed tube contacting grooves
DE2641555A1 (en) * 1976-09-15 1978-03-16 Schevtschenko METHOD OF CONTINUOUS TUBE ROLLING AND CONTINUOUS TUBE ROLLING MILL
JP5183084B2 (en) * 2007-03-14 2013-04-17 株式会社 クニテック Cylindrical product, manufacturing method and manufacturing apparatus thereof
CN114082803A (en) * 2021-11-22 2022-02-25 韩维新 Production process and cold-drawing die for ribbed thin-wall cladding tube

Also Published As

Publication number Publication date
FR1576793A (en) 1969-08-01
JPS4842542B1 (en) 1973-12-13
US3566655A (en) 1971-03-02

Similar Documents

Publication Publication Date Title
GB1483541A (en) Method of producing seamless steel tube
GB1471689A (en) Reducing mills
GB1185487A (en) A Method of Reducing Tubes, Especially Thick-Walled Tubes, and Means for Practising the Method.
GB1193390A (en) An improved method and apparatus for the manufacture of Steel Tubes
GB1226504A (en)
GB1240142A (en) A method of manufacturing tube billets
GB1366015A (en) Method and apparatus for cold drawing metal wire rod
GB1184707A (en) A Method and Apparatus for Producing Seamless Rolled Tubes
GB1195140A (en) An Improved Method and Apparatus for the Manufacture of Steel Tube.
JPS5630015A (en) Continuous rolling method for pipe
GB1503482A (en) Press roll piercing method
GB1226221A (en)
GB208285A (en) Process and apparatus for the manufacture of metal tubes
SU129162A1 (en) Combined method of flashing and stretching pipes in a three-roll mill
SU429861A1 (en) METHOD FOR PIPE ROLLING IN KOSOVALKOV MILL
GB737722A (en) Improvements relating to tubes with external longitudinal ribs
ES455134A1 (en) Methods for the manufacture of longitudinal-seam welded tubes
SU113579A1 (en) The method of rolling tubes on a rolling three-roll mill slant rolling
GB874094A (en) Improvements in or relating to a process for reducing the bore of a thick-walled pipe
GB1434207A (en) Method of cold forming steel rods
GB1144330A (en) A process for the manufacturing of seamless tubes
GB1291744A (en) Method of manufacturing seamless steel pipes
GB374934A (en) Improvements in or relating to the manufacture of metal tubes
GB506597A (en) Improvements relating to the production of metal tubes in inclined rolling mills
JPS55112107A (en) Rolling method for press roll piercing

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees