ES341815A1 - Improvements in or relating to methods of and apparatus for manufacturing Heat Exchanger Tubes - Google Patents

Improvements in or relating to methods of and apparatus for manufacturing Heat Exchanger Tubes

Info

Publication number
ES341815A1
ES341815A1 ES341815A ES341815A ES341815A1 ES 341815 A1 ES341815 A1 ES 341815A1 ES 341815 A ES341815 A ES 341815A ES 341815 A ES341815 A ES 341815A ES 341815 A1 ES341815 A1 ES 341815A1
Authority
ES
Spain
Prior art keywords
tube
strip
wire
layer
copper
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
ES341815A
Other languages
Spanish (es)
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.)
Mecano Bundy GmbH
Original Assignee
Mecano Bundy GmbH
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 Mecano Bundy GmbH filed Critical Mecano Bundy GmbH
Publication of ES341815A1 publication Critical patent/ES341815A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles 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
    • 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
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B23K1/0012—Brazing of heat exchangers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Coating With Molten Metal (AREA)

Abstract

A heat exchanger tube is made by providing a helix of wire or strip 2 on a multi-layer strip 3 of steel and a copper layer on at least the exterior and heating the assembly to a temperature between the melting-point of copper and steel to braze the layers of the strip together and the wire or strip to the tube. The helix is closely wound and expanded along the tube by a sleeve 4 with a pair of pegs 5, 6 which separate the tuns as the sleeve rotates. The strip for the fin is also multi-layer with a steel core and a layer of copper on each side. The wire may be copper-coated and wetted with flux. Alternatively the wire is uncoated and the outer layer of the tube is made thicker. The helix may be wound directly on to the tube or on to a mandrel (not shown) whose diameter is greater than the tube. The strip or wire is fixed in a slot in the tube before axial expansion by the sleeve 4. The mandrel may be a frusto-conical sleeve rotated at the same speed as the tube during the axial feed of the tube therethrough. The heat exchanger may be zinc-plated after assembly.
ES341815A 1966-06-16 1967-06-15 Improvements in or relating to methods of and apparatus for manufacturing Heat Exchanger Tubes Expired ES341815A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEM0069866 1966-06-16
DEM0071721 1966-11-22
DEM0072290 1967-01-03

Publications (1)

Publication Number Publication Date
ES341815A1 true ES341815A1 (en) 1969-05-16

Family

ID=27211683

Family Applications (1)

Application Number Title Priority Date Filing Date
ES341815A Expired ES341815A1 (en) 1966-06-16 1967-06-15 Improvements in or relating to methods of and apparatus for manufacturing Heat Exchanger Tubes

Country Status (3)

Country Link
DE (1) DE1602301A1 (en)
ES (1) ES341815A1 (en)
GB (1) GB1171230A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08270973A (en) * 1995-03-30 1996-10-18 Mitsubishi Electric Corp Air conditioner
US11504814B2 (en) 2011-04-25 2022-11-22 Holtec International Air cooled condenser and related methods
WO2014089072A2 (en) 2012-12-03 2014-06-12 Holtec International, Inc. Brazing compositions and uses thereof
WO2013109968A1 (en) * 2012-01-18 2013-07-25 Holtec International, Inc. Finned tube assemblies for heat exchangers

Also Published As

Publication number Publication date
DE1602301A1 (en) 1971-07-08
GB1171230A (en) 1969-11-19

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