GB1038308A - Method of making seamless tubes - Google Patents

Method of making seamless tubes

Info

Publication number
GB1038308A
GB1038308A GB50174/64A GB5017464A GB1038308A GB 1038308 A GB1038308 A GB 1038308A GB 50174/64 A GB50174/64 A GB 50174/64A GB 5017464 A GB5017464 A GB 5017464A GB 1038308 A GB1038308 A GB 1038308A
Authority
GB
United Kingdom
Prior art keywords
tube
rollers
rolling
diameter
dec
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
GB50174/64A
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.)
Combustion Engineering Inc
Original Assignee
Combustion Engineering Inc
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 Combustion Engineering Inc filed Critical Combustion Engineering Inc
Publication of GB1038308A publication Critical patent/GB1038308A/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
    • 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
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D13/00—Centrifugal casting; Casting by using centrifugal force
    • B22D13/02—Centrifugal casting; Casting by using centrifugal force of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D13/00—Centrifugal casting; Casting by using centrifugal force
    • B22D13/02—Centrifugal casting; Casting by using centrifugal force of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis
    • B22D13/023—Centrifugal casting; Casting by using centrifugal force of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis the longitudinal axis being horizontal
    • 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

1,038,308. Making seamless tubes; centrifugal-casing machines; rolling tubes. COMBUSTION ENGINEERING Inc. Dec. 9, 1964 [Dec. 19, 1963], No. 50174/64. Headings B3A, B3F and B3M. A method of making a seamless tube includes the steps of (a) centrifugally casting a tube having a greater diameter and wall thickness than the finished tube and allowing the tube to cool, (b) smoothing the walls of the tube by turning or grinding, (c) heat treating the tube to remove any stresses set up in the machining operation, (d) cold-working the tube over a mandrel by rockers or rollers to reduce the wall thickness of the tube and so lengthen the tube and (e) hot working the tube in a rolling mill in which the rollers stretch the tube and reduce the diameter of the tube to produce the finished tube. In the centrifugal casting step, Fig. 1 (not shown), molten metal from an induction furnace is poured by a ladle at a controlled rate into a metal mould lined with porous ceramic material. The casting apparatus may be surrounded by an inert atmosphere such as argon, or a reducing atmosphere such as hydrogen. The hot-rolling step (e) is performed by a rolling mill, Fig. 8 (not shown), having sets of three rollers of gradually reducing diameter, each driven at a different speed so as to tension and stretch the tube.
GB50174/64A 1963-12-19 1964-12-09 Method of making seamless tubes Expired GB1038308A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US331715A US3259975A (en) 1963-12-19 1963-12-19 Tube manufacture

Publications (1)

Publication Number Publication Date
GB1038308A true GB1038308A (en) 1966-08-10

Family

ID=23295066

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50174/64A Expired GB1038308A (en) 1963-12-19 1964-12-09 Method of making seamless tubes

Country Status (8)

Country Link
US (1) US3259975A (en)
BE (1) BE657283A (en)
BR (1) BR6465170D0 (en)
DE (1) DE1282425B (en)
ES (1) ES307208A1 (en)
GB (1) GB1038308A (en)
NL (1) NL6414809A (en)
SE (1) SE310159B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3317994A (en) * 1964-08-19 1967-05-09 Southwire Co Method of conditioning metal for hot forming
US3314143A (en) * 1964-11-03 1967-04-18 Robert E Mcdonald Method for producing tube shells
JPS5469559A (en) * 1977-11-15 1979-06-04 Usui Kokusai Sangyo Kk Production of high pressure fuel jetting tube material
JPS5584265A (en) * 1978-12-19 1980-06-25 Kubota Ltd Pressure molding method for bore surface of cylindrical casting
US4317271A (en) * 1979-01-08 1982-03-02 Combustion Engineering, Inc. Method of making metal tubes
DE3032106C2 (en) * 1980-08-22 1986-01-16 Manfred Dr.-Ing. 4150 Krefeld Janßen Process and device for the continuous production of pipes with graduated inner and outer diameters
JP3961546B2 (en) 2005-12-06 2007-08-22 株式会社神戸製鋼所 Extruded hollow section molding apparatus and molding method
DE102011109071A1 (en) * 2011-07-30 2013-01-31 Sms Meer Gmbh Pipe Forging Process with Urformed Hollow Block
CN104190740B (en) * 2014-07-15 2016-04-13 攀钢集团成都钢钒有限公司 The production method of hot rolled seamless steel tube pipe
DE102017105582A1 (en) * 2016-04-01 2017-10-05 Sms Group Gmbh Method and plant for producing a seamless hot-rolled tube and rolled centrifugally cast tube and the use of a hollow block produced by centrifugal casting
US10890388B2 (en) 2016-10-21 2021-01-12 General Electric Technology Gmbh System and method for additively manufacturing boiler tubes
CN113680985B (en) * 2021-08-26 2022-04-29 北京钢研高纳科技股份有限公司 Preparation method of low-cost short-process high-temperature alloy seamless tube
CN115971263B (en) * 2023-03-20 2023-06-23 太原理工大学 Online gradient temperature control equipment for seamless metal composite pipe and rolling and heat treatment method thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA494252A (en) * 1953-07-07 Hudson Bay Mining And Smelting Co. Method of decreasing dross formation in the melting of zinc
DE566714C (en) * 1931-03-19 1932-12-20 Peter Otto Process for producing blanks
GB473726A (en) * 1936-09-12 1937-10-19 Oederlin Cie Ag Process and apparatus for the production of metal castings
US2245421A (en) * 1937-12-13 1941-06-10 United States Pipe Foundry Method of making deformed steel tubes
FR899220A (en) * 1943-10-28 1945-05-24 Process for manufacturing seamless drawn tubes in non-ferrous metals, and centrifugal ingot mold usable in the first phase of this process
US3174221A (en) * 1960-12-20 1965-03-23 Oregon Metallurgical Corp Process for making sheet from brittle metals

Also Published As

Publication number Publication date
SE310159B (en) 1969-04-21
US3259975A (en) 1966-07-12
NL6414809A (en) 1965-06-21
DE1282425B (en) 1968-11-07
ES307208A1 (en) 1965-05-16
BR6465170D0 (en) 1973-07-03
BE657283A (en) 1965-06-17

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