GB492990A - Improvements in and relating to soldering fluxes - Google Patents

Improvements in and relating to soldering fluxes

Info

Publication number
GB492990A
GB492990A GB1587237A GB1587237A GB492990A GB 492990 A GB492990 A GB 492990A GB 1587237 A GB1587237 A GB 1587237A GB 1587237 A GB1587237 A GB 1587237A GB 492990 A GB492990 A GB 492990A
Authority
GB
United Kingdom
Prior art keywords
parts
rosin
glycerine
phosphoric acid
ammonium chloride
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
GB1587237A
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.)
LAURENCE MACFARLANE
British Insulated Cables Ltd
Original Assignee
LAURENCE MACFARLANE
British Insulated Cables 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 LAURENCE MACFARLANE, British Insulated Cables Ltd filed Critical LAURENCE MACFARLANE
Priority to GB1587237A priority Critical patent/GB492990A/en
Publication of GB492990A publication Critical patent/GB492990A/en
Expired legal-status Critical Current

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
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
    • B23K35/3612—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with organic compounds as principal constituents
    • B23K35/3613—Polymers, e.g. resins

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)

Abstract

A soldering-flux is prepared by mixing together (a) phosphoric acid, (b) a mixture of powdered ammonium chloride and a liquid or pasty medium, e.g. glycerine, and (c) a material consisting wholly or mainly of rosin. Preferably the rosin, which may be mixed with rosin oil or tallow, is melted and heated to about 120 DEG C.; the phosphoric acid is then stirred in and an intimate mixture of ammonium chloride and glycerine added gradually to the molten mass. The preferred proportions are 60-80 parts by weight of rosin with 5-15 parts of each of phosphoric acid and ammonium chloride and 5-10 parts of glycerine, or with 5-15 parts of each of phosphoric acid, ammonium chloride, and glycerine, and 15-30 parts of rosin oil or tallow. The flux may be heated to 100-120 DEG C. and allowed to flow into a sheath of solder or may be forced in by pressure during extrusion of the sheath.
GB1587237A 1937-06-08 1937-06-08 Improvements in and relating to soldering fluxes Expired GB492990A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1587237A GB492990A (en) 1937-06-08 1937-06-08 Improvements in and relating to soldering fluxes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1587237A GB492990A (en) 1937-06-08 1937-06-08 Improvements in and relating to soldering fluxes

Publications (1)

Publication Number Publication Date
GB492990A true GB492990A (en) 1938-09-30

Family

ID=10067042

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1587237A Expired GB492990A (en) 1937-06-08 1937-06-08 Improvements in and relating to soldering fluxes

Country Status (1)

Country Link
GB (1) GB492990A (en)

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