GB1240142A - A method of manufacturing tube billets - Google Patents

A method of manufacturing tube billets

Info

Publication number
GB1240142A
GB1240142A GB31036/68A GB3103668A GB1240142A GB 1240142 A GB1240142 A GB 1240142A GB 31036/68 A GB31036/68 A GB 31036/68A GB 3103668 A GB3103668 A GB 3103668A GB 1240142 A GB1240142 A GB 1240142A
Authority
GB
United Kingdom
Prior art keywords
rolling
ingot
casting
tube
descaling
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
GB31036/68A
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 DE19671558276 external-priority patent/DE1558276B2/en
Priority claimed from DE19681752078 external-priority patent/DE1752078A1/en
Priority claimed from DE19681752116 external-priority patent/DE1752116A1/en
Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of GB1240142A publication Critical patent/GB1240142A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles
    • 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
    • B21B19/12—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 parallel to the axis of the work
    • B21B19/14—Rolling tubes by means of additional rollers arranged inside the tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49988—Metal casting
    • Y10T29/49991—Combined with rolling

Abstract

1,240,142. Making tube billets; rolling; continuous casting. MANNESMANN A.G. 28 June, 1968 [28 June, 1967; 30 March, 1968; 5 April, 1968], No. 31036/68. Headings B3A, B3F and B3M. A tube billet for the production of seamless tubes is made by continuously casting a hollow ingot having an outer to inner diametral ratio between 5 :1 and 2:1 with a wall thickness of at least 150 mm. and an inner diameter of at least 80 mm., subdividing the continuous casting to produce ingots such that the resultant billet length will correspond to the input length of the tube production process and, after descaling, converting the cast structure of the ingot to a rolled structure by rolling without ovalization. The casting is cooled such that the segregation zone is spaced from the inner and outer walls of the casting by at least “ of the wall thickness and is furthest from the wall at which the greatest rolling deformation will take place. The descaling may be by means of steam or pressurized water on the inner surface of the ingot or carried out during the rolling of the ingot. The rolling is preferably carried out in a three, or more, roll skew rolling mill.
GB31036/68A 1967-06-28 1968-06-28 A method of manufacturing tube billets Expired GB1240142A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19671558276 DE1558276B2 (en) 1967-06-28 1967-06-28 Process for the production of a tube blank used for the production of seamless steel tubes
DE19681752078 DE1752078A1 (en) 1968-03-30 1968-03-30 Process for the manufacture of seamless steel tubes of large diameter
DE19681752116 DE1752116A1 (en) 1968-04-05 1968-04-05 Method and apparatus for manufacturing seamless steel tubes

Publications (1)

Publication Number Publication Date
GB1240142A true GB1240142A (en) 1971-07-21

Family

ID=27180799

Family Applications (3)

Application Number Title Priority Date Filing Date
GB31036/68A Expired GB1240142A (en) 1967-06-28 1968-06-28 A method of manufacturing tube billets
GB0772/71A Expired GB1241289A (en) 1967-06-28 1968-06-28 A process for making seamless tubes
GB0773/71A Expired GB1241290A (en) 1967-06-28 1968-06-28 A process and an apparatus for making seamless steel tubes

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB0772/71A Expired GB1241289A (en) 1967-06-28 1968-06-28 A process for making seamless tubes
GB0773/71A Expired GB1241290A (en) 1967-06-28 1968-06-28 A process and an apparatus for making seamless steel tubes

Country Status (2)

Country Link
US (1) US3581384A (en)
GB (3) GB1240142A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2058777A5 (en) * 1969-09-25 1971-05-28 Cefilac
US4091524A (en) * 1974-07-19 1978-05-30 Ali Bindernagel Process for producing pipe blooms
DE2437441C3 (en) * 1974-08-01 1980-05-08 Mannesmannroehren-Werke Ag, 4000 Duesseldorf Process for the continuous production of very long precision tubes
DE2605486C2 (en) * 1976-02-12 1982-11-11 Kocks Technik Gmbh & Co, 4010 Hilden Process for the production of longitudinally welded pipes
JPS57100806A (en) * 1980-12-16 1982-06-23 Nippon Kokan Kk <Nkk> Producing device for seamless steel pipe
DE3438395C1 (en) * 1984-10-19 1986-04-10 Ulrich Dr.-Ing. e.h. Dipl.-Ing. 4000 Düsseldorf Petersen Process for producing seamless steel pipes of large diameter
EP0369795B1 (en) * 1988-11-18 1993-09-15 Sumitomo Metal Industries, Ltd. Method of manufacturing seamless tube formed of titanium material
ITMI20131090A1 (en) 2013-06-28 2014-12-29 Danieli Off Mecc TILTING DEVICE FOR INTERNAL TUBES AND TILTING PROCESS

Also Published As

Publication number Publication date
GB1241290A (en) 1971-08-04
US3581384A (en) 1971-06-01
GB1241289A (en) 1971-08-04

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