GB986858A - Improvements in or relating to tubulous walls formed from finned tubes - Google Patents
Improvements in or relating to tubulous walls formed from finned tubesInfo
- 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
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.
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)
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 |
-
1962
- 1962-10-10 GB GB3833762A patent/GB986858A/en not_active Expired
Cited By (1)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES465235A1 (en) | Finned metal tube and method for making the same | |
GB986858A (en) | Improvements in or relating to tubulous walls formed from finned tubes | |
GB1313973A (en) | Tubular heat exchanger and a method for the production thereof | |
DE486002C (en) | The wall immediately delimiting the combustion chamber of a steam boiler, consisting of parallel water pipes with intermediate pieces | |
GB772103A (en) | Method for forming heads on the ends of steel rods | |
DE1168218B (en) | Formation of the edges of thin sheets bent for fusion welding without additional material | |
GB1058863A (en) | Method of producing a ribbed reinforcing bar for concrete | |
SU469560A1 (en) | The way to eliminate welding deformations | |
SU403770A1 (en) | В П Т Б ЯП "'1 Я ^ -" -: "> & | |
GB1337484A (en) | Vessels having a heat exchange system acting through the wall | |
ES400662A1 (en) | Method of manufacturing a component for use in a roller clutch assembly | |
SU1196062A1 (en) | Method of producing t-joints | |
SU747655A1 (en) | Diffusion welding method | |
JPS57199577A (en) | Production of 21/4cr-1mo welded steel pipe | |
AT258089B (en) | Process for the production of bimetallic, seamless hollow bodies, in particular pipes clad on the inside with stainless steel | |
GB1304685A (en) | ||
JPS5485459A (en) | Sleeve fitting method | |
SU530713A1 (en) | The method of manufacture of electric welded galvanic pipes | |
Shorshorov et al. | Method of Strengthening Weld Joints of Martensitic Steel Sheets | |
SU85727A1 (en) | Method of cold forging of spot welded joints | |
JPS5453643A (en) | Electroslag welding method for box-type sectioned structural member | |
JPS5726123A (en) | Production of hardened piston ring made of steel | |
GB766425A (en) | Improvements in or relating to welding apparatus | |
JPS5573828A (en) | Reducing method of residual stress at circumferential weld zone of steel pipe | |
GB191215107A (en) | Improvements in the Manufacture of Composite Metal Tubes. |