EP0226025A3 - Method and apparatus for producing finned tubes - Google Patents

Method and apparatus for producing finned tubes

Info

Publication number
EP0226025A3
EP0226025A3 EP86115385A EP86115385A EP0226025A3 EP 0226025 A3 EP0226025 A3 EP 0226025A3 EP 86115385 A EP86115385 A EP 86115385A EP 86115385 A EP86115385 A EP 86115385A EP 0226025 A3 EP0226025 A3 EP 0226025A3
Authority
EP
European Patent Office
Prior art keywords
tube
finned tubes
rib
fin
cutting tool
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.)
Withdrawn
Application number
EP86115385A
Other languages
German (de)
French (fr)
Other versions
EP0226025A2 (en
Inventor
Giorgio Palloni
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0226025A2 publication Critical patent/EP0226025A2/en
Publication of EP0226025A3 publication Critical patent/EP0226025A3/en
Withdrawn legal-status Critical Current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

A method for producing finned tubes for heat exchangers starting from a cylindrical tube (l) which is cut along at least one helical cutting line by means of relative rotatory and linear traversing motions between the tube (l) and a cutting tool (3); a continuous shaving or rib is obtained which remains integral with the wall of the tube (l) and which is folded outwards to form a helical fin (ll) by means of the bend­ ing and folding action of the cutting tool (3) which is provided with a sliding surface (3c) for the rib, running tangentially to the fin (ll). The tube is suitably guided and supported close to the cutting area.
EP86115385A 1985-11-12 1986-11-06 Method and apparatus for producing finned tubes Withdrawn EP0226025A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8522798A IT1215315B (en) 1985-11-12 1985-11-12 METHOD OF MANUFACTURE OF FINNED TUBES WITH HIGH THERMAL EXCHANGE COEFFICIENT AND FINNED TUBES OBTAINED BY SUCH METHOD.
IT2279885 1985-11-12

Publications (2)

Publication Number Publication Date
EP0226025A2 EP0226025A2 (en) 1987-06-24
EP0226025A3 true EP0226025A3 (en) 1988-08-31

Family

ID=11200543

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86115385A Withdrawn EP0226025A3 (en) 1985-11-12 1986-11-06 Method and apparatus for producing finned tubes

Country Status (2)

Country Link
EP (1) EP0226025A3 (en)
IT (1) IT1215315B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1217587B (en) * 1988-05-13 1990-03-30 Mars Di Renzo Giovanni Tomezzo METHOD FOR THE MANUFACTURE OF FINNED TUBES WITH HIGH THERMAL EXCHANGE COEFFICIENT
KR100653635B1 (en) 2005-01-06 2006-12-05 김상선 Apparatus for manufacturung fin-tube in the heat exchanger

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2661526A (en) * 1944-01-26 1953-12-08 Griscom Russell Co Method of making fin tubing
GB1097519A (en) * 1965-01-13 1968-01-03 Giorgio Palloni Method for the production of finned pipes for heat exchanger apparatus
GB1150525A (en) * 1967-07-11 1969-04-30 Acme Cleveland Corp Method and Machine for Form Rolling
DE2063123A1 (en) * 1970-02-24 1971-09-16 Peerles Of America Inc Heat exchanger element and manufacturing process
US3800580A (en) * 1973-01-08 1974-04-02 Armco Steel Corp Thread rolling apparatus
EP0108729A1 (en) * 1982-11-04 1984-05-16 Alberto Scoti Method for making extended heat transfer surfaces and a tool for putting said method into practice

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2661526A (en) * 1944-01-26 1953-12-08 Griscom Russell Co Method of making fin tubing
GB1097519A (en) * 1965-01-13 1968-01-03 Giorgio Palloni Method for the production of finned pipes for heat exchanger apparatus
GB1150525A (en) * 1967-07-11 1969-04-30 Acme Cleveland Corp Method and Machine for Form Rolling
DE2063123A1 (en) * 1970-02-24 1971-09-16 Peerles Of America Inc Heat exchanger element and manufacturing process
US3800580A (en) * 1973-01-08 1974-04-02 Armco Steel Corp Thread rolling apparatus
EP0108729A1 (en) * 1982-11-04 1984-05-16 Alberto Scoti Method for making extended heat transfer surfaces and a tool for putting said method into practice

Also Published As

Publication number Publication date
EP0226025A2 (en) 1987-06-24
IT1215315B (en) 1990-01-31
IT8522798A0 (en) 1985-11-12

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