GB986858A - Improvements in or relating to tubulous walls formed from finned tubes - Google Patents

Improvements in or relating to tubulous walls formed from finned tubes

Info

Publication number
GB986858A
GB986858A GB3833762A GB3833762A GB986858A GB 986858 A GB986858 A GB 986858A GB 3833762 A GB3833762 A GB 3833762A GB 3833762 A GB3833762 A GB 3833762A GB 986858 A GB986858 A GB 986858A
Authority
GB
United Kingdom
Prior art keywords
welding
fins
tubulous
tubes
heating
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
GB3833762A
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 International Ltd
Original Assignee
Babcock and Wilcox 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 Babcock and Wilcox Ltd filed Critical Babcock and Wilcox Ltd
Publication of GB986858A publication Critical patent/GB986858A/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
    • B23K9/00—Arc welding or cutting
    • B23K9/0026—Arc welding or cutting specially adapted for particular articles or work
    • B23K9/0052—Welding of pipe panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/06—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of metal tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Forging (AREA)

Abstract

986,858. Making tubulous walls. BABCOCK & WILCOX Ltd. Oct. 10, 1962 [Oct. 11, 1961], No. 38337/62. Heading B3A. [Also in Division F4] A method of forming a tubulous wall from a plurality of finned tubes comprises arranging the tubes side by side with their fins in contact and welding together the pairs of fins by progressively moving fusion welding means longitudinally of the fins whilst heating means are traversed before or after the welding means to soften at least the metal of the fins. A wall comprises four tubes 1 having a pair of diametrically opposed longitudinally extending fins 2 arranged side by side and fusion welded together along the fins using a plurality of weld heads. The assembly is preheated completely or locally along the fins by a traversing heating means or subsequent to welding is stress relieved by heating in a similar manner. As an alternative or in addition to the heating process the fins may be hammered to increase their length to compensate for the shortening caused by the welding between dies when in the hot condition prior to or immediately after welding. After welding the hammering may be carried out after reheating, following the welding, or with the fins cold before or after the welding process. Further heat treatment may be carried out to relieve any hardening or stress resulting from the post weld hammering. The fins may, alternatively, be hammered or pressed to form corrugations 3 along their length before or after welding when in the hot or cold state. Corrugations formed before welding will tend to straighten during welding whilst those which remain or are formed after welding will tend to stiffen the wall member.
GB3833762A 1961-10-11 1962-10-10 Improvements in or relating to tubulous walls formed from finned tubes Expired GB986858A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR875653 1961-10-11

Publications (1)

Publication Number Publication Date
GB986858A true GB986858A (en) 1965-03-24

Family

ID=8764504

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3833762A Expired GB986858A (en) 1961-10-11 1962-10-10 Improvements in or relating to tubulous walls formed from finned tubes

Country Status (1)

Country Link
GB (1) GB986858A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994012298A1 (en) * 1992-12-03 1994-06-09 Hannu Juhani Kirsi A pipe structure, its manufacturing method and a resulting product

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994012298A1 (en) * 1992-12-03 1994-06-09 Hannu Juhani Kirsi A pipe structure, its manufacturing method and a resulting product

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