GB1422863A - Rolling of tube ends - Google Patents

Rolling of tube ends

Info

Publication number
GB1422863A
GB1422863A GB555473A GB555473A GB1422863A GB 1422863 A GB1422863 A GB 1422863A GB 555473 A GB555473 A GB 555473A GB 555473 A GB555473 A GB 555473A GB 1422863 A GB1422863 A GB 1422863A
Authority
GB
United Kingdom
Prior art keywords
tube
expanded
zones
stage
feb
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
GB555473A
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.)
KOTTHAUS BUSCH
Original Assignee
KOTTHAUS BUSCH
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 KOTTHAUS BUSCH filed Critical KOTTHAUS BUSCH
Publication of GB1422863A publication Critical patent/GB1422863A/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
    • 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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/06—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes in openings, e.g. rolling-in

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

1422863 Jointing by tube expanding KOTTHAUS & BUSCH 5 Feb 1973 [4 Feb 1972] 5554/73 Heading B3J The end of a tube 21 is expanded in a bore in a tube plate 22 by subjecting the tube-end to differential rolling along its length. The expanded tube may be a sliding fit in the plate or, in the case of a heat exchanger, fixed therein. A tube of two different materials may be used. The two end zones of a tube-end may be expanded by 10% and the central zone by 20%. Alternatively, four zones may be expanded in increasing steps (III), or the expansion may increase uniformly over the length (IV) or from each end to a central zone (V). A roller-expander for performing the method may have a different adjusting member, e.g. a potentiometer, for controlling the expansion at each of ten zones, The stages may thus be controlled automatically and indicated by illuminating a lamp for each stage. A selector switch may permit selection of the desired combination of stages, and a repeater switch may allow repetition of a stage after reverse running and an adjustment pause at the end of a stage. A simple adjusting member can be moved mechanically as a function of a curve. A recording instrument may record a curve of each operation for purposes of comparison. The operation may be controlled by a computer.
GB555473A 1972-02-04 1973-02-05 Rolling of tube ends Expired GB1422863A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722205281 DE2205281C2 (en) 1972-02-04 1972-02-04 Method and device for the differentiated rolling in of pipes

Publications (1)

Publication Number Publication Date
GB1422863A true GB1422863A (en) 1976-01-28

Family

ID=5835019

Family Applications (1)

Application Number Title Priority Date Filing Date
GB555473A Expired GB1422863A (en) 1972-02-04 1973-02-05 Rolling of tube ends

Country Status (6)

Country Link
DE (1) DE2205281C2 (en)
FR (1) FR2170236B3 (en)
GB (1) GB1422863A (en)
IT (1) IT977183B (en)
NL (1) NL7301514A (en)
SE (1) SE382924B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2431884A1 (en) * 1978-07-28 1980-02-22 Inst T Khim Tube expander which measures variable effort applied to rolling tool - simultaneously with a linear variable of the expanding operation
DE3528967C1 (en) * 1985-08-13 1987-01-15 Steinmueller Gmbh L & C Method and device for rolling pipes

Also Published As

Publication number Publication date
IT977183B (en) 1974-09-10
DE2205281C2 (en) 1982-10-21
NL7301514A (en) 1973-08-07
SE382924B (en) 1976-02-23
DE2205281A1 (en) 1973-08-09
FR2170236A1 (en) 1973-09-14
FR2170236B3 (en) 1976-01-30

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Legal Events

Date Code Title Description
PS Patent sealed