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GB1092633A - Improvements relating to the welding of fins to tubes - Google Patents

Improvements relating to the welding of fins to tubes

Info

Publication number
GB1092633A
GB1092633A GB1180364A GB1180364A GB1092633A GB 1092633 A GB1092633 A GB 1092633A GB 1180364 A GB1180364 A GB 1180364A GB 1180364 A GB1180364 A GB 1180364A GB 1092633 A GB1092633 A GB 1092633A
Authority
GB
United Kingdom
Prior art keywords
tube
fin
welded
fins
crests
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
GB1180364A
Inventor
Arthur Samuel Hall
Clifford John Alec Wood
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.)
Tube Products Ltd
Original Assignee
Tube Products Ltd
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 Tube Products Ltd filed Critical Tube Products Ltd
Priority to GB1180364A priority Critical patent/GB1092633A/en
Priority to BE660097D priority patent/BE660097A/xx
Priority to FR6955A priority patent/FR1425211A/en
Priority to FI45965A priority patent/FI43803B/fi
Priority to ES0310298A priority patent/ES310298A1/en
Priority to NL6503119A priority patent/NL6503119A/xx
Priority to CH354565A priority patent/CH430907A/en
Priority to SE3479/65A priority patent/SE322107B/xx
Priority to DK143065AA priority patent/DK113335B/en
Publication of GB1092633A publication Critical patent/GB1092633A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/08—Seam welding not restricted to one of the preceding subgroups
    • 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
    • B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
    • B21C37/225—Making finned or ribbed tubes by fixing strip or like material to tubes longitudinally-ribbed tubes
    • 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
    • B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
    • B21C37/26—Making finned or ribbed tubes by fixing strip or like material to tubes helically-ribbed tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

1,092,633. Welding by pressure; making finned tubes. TUBE PRODUCTS Ltd. Jan. 7, 1965 [March 20, 1964; Sept. 8, 1964], Nos. 11803/64 and 36683/64. Headings B3A and B3R. In continuously welding a straight longitudinal or helical fin to the surface of a tube by electric resistance welding, the edge of the fin which is applied to the surface is shaped to provide one or more sharp or narrow ribs or crests which are continuous and engage the surface of the tube initially so that the heating effect of the current is initially concentrated in the ribs or crests. The fin may have a chamfered end to provide a single welding edge and two such fins 15, 16, Fig. 3, may be welded to a tube 17 by a pair of grooved roller electrodes 18, 19. The current flow is from one electrode through the tube to the other electrode. The fin may be of greater radial length with a blunt edge remote from the edge to be welded. The inner edge of the fin 29, Fig. 7, may have two parallel crests, separated by a groove and the crests may be knife edged, may have narrow lands or may be radiused. More than two crests may be provided and they may lie on a curve or in a flat plane. Instead of supplying current through the grooved rollers the current may be supplied to the sides of the fin through separate roller electrodes 32 or sliding contacts. Opposed fins may be wound helically on a tube and welded by grooved roller electrode inclined to the tube axis and the rollers may be idle or driven. Opposed straight longitudinal fins may be welded to a tube by grooved driven roller electrodes. In making a tube plate opposed fins are welded to tubes and the outer edges of the fins are welded together. Alternatively a number of tubes each having one fin welded by the described method are formed and the free edge of each fin is welded to the unfinned side of the adjacent tube.
GB1180364A 1964-03-20 1964-03-20 Improvements relating to the welding of fins to tubes Expired GB1092633A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB1180364A GB1092633A (en) 1964-03-20 1964-03-20 Improvements relating to the welding of fins to tubes
BE660097D BE660097A (en) 1964-03-20 1965-02-23
FR6955A FR1425211A (en) 1964-03-20 1965-02-25 Process for welding fins to tubes or other elements
FI45965A FI43803B (en) 1964-03-20 1965-02-25
ES0310298A ES310298A1 (en) 1964-03-20 1965-03-09 Improvements for the welding of fins on pipes and other elements. (Machine-translation by Google Translate, not legally binding)
NL6503119A NL6503119A (en) 1964-03-20 1965-03-11
CH354565A CH430907A (en) 1964-03-20 1965-03-15 Process for welding a rib to the surface of an object by means of electrical resistance welding and a tube provided with a rib according to this process
SE3479/65A SE322107B (en) 1964-03-20 1965-03-17
DK143065AA DK113335B (en) 1964-03-20 1965-03-19 Method for continuous welding of diametrically opposed fins to the surface of a pipe.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1180364A GB1092633A (en) 1964-03-20 1964-03-20 Improvements relating to the welding of fins to tubes

Publications (1)

Publication Number Publication Date
GB1092633A true GB1092633A (en) 1967-11-29

Family

ID=9992997

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1180364A Expired GB1092633A (en) 1964-03-20 1964-03-20 Improvements relating to the welding of fins to tubes

Country Status (2)

Country Link
FI (1) FI43803B (en)
GB (1) GB1092633A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2280448A2 (en) * 1973-03-17 1976-02-27 Balcke Duerr Ag PROCEDURE AND DEVICE FOR PROPELLING TAPE ON TWO PIPES, IN PARTICULAR OF OVAL SECTION

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2280448A2 (en) * 1973-03-17 1976-02-27 Balcke Duerr Ag PROCEDURE AND DEVICE FOR PROPELLING TAPE ON TWO PIPES, IN PARTICULAR OF OVAL SECTION

Also Published As

Publication number Publication date
FI43803B (en) 1971-03-01

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