ES313720A1 - Procedure for forming interior fins tubes. (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for forming interior fins tubes. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES313720A1
ES313720A1 ES0313720A ES313720A ES313720A1 ES 313720 A1 ES313720 A1 ES 313720A1 ES 0313720 A ES0313720 A ES 0313720A ES 313720 A ES313720 A ES 313720A ES 313720 A1 ES313720 A1 ES 313720A1
Authority
ES
Spain
Prior art keywords
tube
rod
translation
machine
legally binding
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
ES0313720A
Other languages
Spanish (es)
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.)
Babcock and Wilcox Co
Original Assignee
Babcock and Wilcox Co
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 Babcock and Wilcox Co filed Critical Babcock and Wilcox Co
Publication of ES313720A1 publication Critical patent/ES313720A1/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
    • 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
    • B21C37/207—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 helical guides

Abstract

Method for forming helical fins inside elongated tubes, characterized by comprising the steps of: placing the tube within which fins are to be formed around a helically grooved rod; stretching the rod with the tube through a die to make the inner surface of the tube take the shape of the groove of the rod; compress the wall portions of said tube between said rod and a plurality of rollers to thereby increase the radial clearance between said rod and said tube, and rotate the rod relative to the tube to draw said rod from the tube. (Machine-translation by Google Translate, not legally binding)
ES0313720A 1964-06-22 1965-06-02 Procedure for forming interior fins tubes. (Machine-translation by Google Translate, not legally binding) Expired ES313720A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US376720A US3292408A (en) 1964-06-22 1964-06-22 Method of forming internally ribbed tubes

Publications (1)

Publication Number Publication Date
ES313720A1 true ES313720A1 (en) 1965-09-01

Family

ID=23486190

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0313720A Expired ES313720A1 (en) 1964-06-22 1965-06-02 Procedure for forming interior fins tubes. (Machine-translation by Google Translate, not legally binding)

Country Status (2)

Country Link
US (1) US3292408A (en)
ES (1) ES313720A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3830087A (en) * 1970-07-01 1974-08-20 Sumitomo Metal Ind Method of making a cross-rifled vapor generating tube
US3768291A (en) * 1972-02-07 1973-10-30 Uop Inc Method of forming spiral ridges on the inside diameter of externally finned tube
DE2225390A1 (en) * 1972-05-25 1973-12-06 Messerschmitt Boelkow Blohm DEVICE AND METHOD FOR MANUFACTURING DEFINED WALL THICKNESS CHANGES IN A ROTATIONAL SYMMETRIC HOLLOW BODY
US4454745A (en) * 1980-07-16 1984-06-19 Standard Tube Canada Limited Process for cold-forming a tube having a thick-walled end portion
US4854148A (en) * 1987-06-19 1989-08-08 The Babcock & Wilcox Company Cold drawing technique and apparatus for forming internally grooved tubes
US7021106B2 (en) * 2004-04-15 2006-04-04 Mitsui Babcock (Us) Llc Apparatus and method for forming internally ribbed or rifled tubes
US8350176B2 (en) * 2008-06-06 2013-01-08 Babcock & Wilcox Power Generation Group, Inc. Method of forming, inserting and permanently bonding ribs in boiler tubes
CN110715173B (en) * 2019-09-29 2021-05-07 西安交通大学 Quick precooling transmission pipeline structure of low-temperature propellant
DE102020103875A1 (en) 2020-02-14 2021-08-19 Winkelmann Powertrain Components GmbH & Co. KG. Rotor hollow shaft

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US511900A (en) * 1894-01-02 Apparatus for drawing metal tubes
DE569686C (en) * 1927-12-22 1933-02-06 Ver Deutsche Metallwerke Ag Process for the production of pipes by drawing on a mandrel
US1985833A (en) * 1930-12-20 1934-12-25 Berlin Karisruher Ind Werke A Method of making grooved sleeves
US2392797A (en) * 1941-06-14 1946-01-08 Hackett Walter William Manufacture of metal tubular articles

Also Published As

Publication number Publication date
US3292408A (en) 1966-12-20

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