GB818394A - Method of affixing spiral fins to metal tubes - Google Patents

Method of affixing spiral fins to metal tubes

Info

Publication number
GB818394A
GB818394A GB1401456A GB1401456A GB818394A GB 818394 A GB818394 A GB 818394A GB 1401456 A GB1401456 A GB 1401456A GB 1401456 A GB1401456 A GB 1401456A GB 818394 A GB818394 A GB 818394A
Authority
GB
United Kingdom
Prior art keywords
zinc
affixing
chloride
aluminium
metal tubes
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
GB1401456A
Inventor
Dougan Lee Jones
Co Rnelis Langewis
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.)
Marley Co LLC
Original Assignee
Marley Co LLC
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 Marley Co LLC filed Critical Marley Co LLC
Priority to GB1401456A priority Critical patent/GB818394A/en
Publication of GB818394A publication Critical patent/GB818394A/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 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
    • B21C37/22—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetallic Welding Materials (AREA)

Abstract

A flux material comprises in percentages by weight: zinc oxide 10-20, zinc chloride 50-70, ammonium chloride 2-5, sodium fluoride 1-3, water 15-20. The material is fused during brazing an aluminium part to a copper part, the zinc chloride reacting with the aluminium to form aluminium chloride and zinc, the latter providing the brazing metal. Cadmium compounds and wetting agents may be added to the material. Specification 778,391 [Group XXII] is referred to.
GB1401456A 1956-05-07 1956-05-07 Method of affixing spiral fins to metal tubes Expired GB818394A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1401456A GB818394A (en) 1956-05-07 1956-05-07 Method of affixing spiral fins to metal tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1401456A GB818394A (en) 1956-05-07 1956-05-07 Method of affixing spiral fins to metal tubes

Publications (1)

Publication Number Publication Date
GB818394A true GB818394A (en) 1959-08-19

Family

ID=10033427

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1401456A Expired GB818394A (en) 1956-05-07 1956-05-07 Method of affixing spiral fins to metal tubes

Country Status (1)

Country Link
GB (1) GB818394A (en)

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