GB752386A - Improvements in the manufacture of hollow parts, such as headers of tubulous heat exchangers, adapted to resist fluid pressure and provided with nipples - Google Patents

Improvements in the manufacture of hollow parts, such as headers of tubulous heat exchangers, adapted to resist fluid pressure and provided with nipples

Info

Publication number
GB752386A
GB752386A GB10892/54A GB1089254A GB752386A GB 752386 A GB752386 A GB 752386A GB 10892/54 A GB10892/54 A GB 10892/54A GB 1089254 A GB1089254 A GB 1089254A GB 752386 A GB752386 A GB 752386A
Authority
GB
United Kingdom
Prior art keywords
tube
hole
fluid pressure
weld
nipple
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
GB10892/54A
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 GB752386A publication Critical patent/GB752386A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F28F9/185—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding with additional preformed parts
    • 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
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • B21C37/296—Making branched pieces starting from strip material; Making branched tubes by securing a secondary tube in an opening in the undeformed wall of a principal tube

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

752,386. Making heat exchangers; welding by fusion. BABCOCK & WILCOX, Ltd. April 13, 1954 [April 13, 1953], No. 10892/54. Classes 83 (2) and 83 (4). A method of providing a nipple on a hollow part, such as a header of a tubulous heat exchanger, adapted to resist fluid pressure includes forming a nipple tube with an inwardly inclined end part, forming a hole in the wall of the hollow part, applying the end part of the tube to the hole to define an external welding groove between the said end part of the tube and the hollow part and depositing weld metal in the groove to unite the tube and the hollow part. A nipple tube 1 is closed at one end by swaging to form a dome 2, Figs. 1 or 2, and the centre of the dome sealed by a weld 3. The wall 4 of a header is drilled with a hole 5 of diameter less than the inside diameter of the tube 1 and the wall of the header around the hole formed with a flat surface 7. The nipple tube 1 is centred on the hole 5, an annular recess 6 formed on the tube during swaging engaging the edge of the hole. The groove formed by the closed end of the tube 1 and the flat surface 7 is then filled with weld metal 8 and, after testing the weld by fluid pressure, the closed end of the tube 1, the root of the weld 8, and the' hole 5 are drilled out so that the hole 5 is widened to the same diameter as the inside of the tube 1.
GB10892/54A 1953-04-13 1954-04-13 Improvements in the manufacture of hollow parts, such as headers of tubulous heat exchangers, adapted to resist fluid pressure and provided with nipples Expired GB752386A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE752386X 1953-04-13

Publications (1)

Publication Number Publication Date
GB752386A true GB752386A (en) 1956-07-11

Family

ID=6654062

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10892/54A Expired GB752386A (en) 1953-04-13 1954-04-13 Improvements in the manufacture of hollow parts, such as headers of tubulous heat exchangers, adapted to resist fluid pressure and provided with nipples

Country Status (1)

Country Link
GB (1) GB752386A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1127010B (en) * 1959-06-23 1962-04-05 Le Tube Ouvre Sa Process for resistance butt welding of pipes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1127010B (en) * 1959-06-23 1962-04-05 Le Tube Ouvre Sa Process for resistance butt welding of pipes

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