GB1280800A - Soldering fluxes - Google Patents

Soldering fluxes

Info

Publication number
GB1280800A
GB1280800A GB2451871A GB2451871A GB1280800A GB 1280800 A GB1280800 A GB 1280800A GB 2451871 A GB2451871 A GB 2451871A GB 2451871 A GB2451871 A GB 2451871A GB 1280800 A GB1280800 A GB 1280800A
Authority
GB
United Kingdom
Prior art keywords
flux
parts
ethanol
mixture
soldering
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
GB2451871A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1280800A publication Critical patent/GB1280800A/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

Landscapes

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

Abstract

1280800 Soldering flux PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [21 March 1970 24518/71 Heading C7M A soldering flux for non pretinned printed circuits consists of a solution of sorbitol and a halogen free activator containing at least one amino group per molecule in a mixture of 0.8-3 parts weight ethanol to 1 part water with a pH of 5-8. The flux preferably contains 100-200 parts weight sorbital per 100 parts ethanol-water mixture and the pH may be adjusted with citric or tartaric acid The activators may be urea, quanidine, hydrazine, hexamethylenetertramine, triethanolamine and glycocol. The flux activity may be increased by adding 2-7% of adipic, azelaic or sebacic acids. The flow is applied to circuit boards 2 as a foam by blowing air through porous ceramic block 7 immersed in the flux in vessel 5. The flux layer is levelled by brush 8 dried at 9 and coated with solder metal at 10.
GB2451871A 1970-03-21 1971-04-19 Soldering fluxes Expired GB1280800A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7004087A NL7004087A (en) 1970-03-21 1970-03-21

Publications (1)

Publication Number Publication Date
GB1280800A true GB1280800A (en) 1972-07-05

Family

ID=19809648

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2451871A Expired GB1280800A (en) 1970-03-21 1971-04-19 Soldering fluxes

Country Status (6)

Country Link
JP (1) JPS5018461B1 (en)
CA (1) CA945460A (en)
DE (1) DE2108542B2 (en)
FR (1) FR2084912A5 (en)
GB (1) GB1280800A (en)
NL (1) NL7004087A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100349688C (en) * 2005-07-16 2007-11-21 李昕 Soldering coal composition used for preparing tin solder paste

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4478650A (en) * 1983-10-19 1984-10-23 At&T Technologies, Inc. Water soluble flux
SE457335B (en) * 1984-07-20 1988-12-19 Ytkemiska Inst FLUID SOFTWARE FOR SOFT WOOLING AND PROCEDURE FOR SOFT WOOLING WITH USE OF THE FLUID SOFTWARE
DE3941069A1 (en) * 1989-12-08 1991-06-13 Mannesmann Ag Conduction plate soldering device - uses flux funnel neck using as few metal parts as possible that produces fine porous foam
DE4033430A1 (en) * 1990-10-20 1992-04-23 Licentia Gmbh Solder coating of conductor pattern for attaching TAB-assembled device - consists of placing foil of flux material with a solder pattern on top, over substrate pattern
DE4402758A1 (en) * 1994-01-31 1995-08-03 Moedinger Volker Method for applying fluxing agent to PCBs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100349688C (en) * 2005-07-16 2007-11-21 李昕 Soldering coal composition used for preparing tin solder paste

Also Published As

Publication number Publication date
CA945460A (en) 1974-04-16
FR2084912A5 (en) 1971-12-17
DE2108542B2 (en) 1975-11-20
JPS5018461B1 (en) 1975-06-28
DE2108542A1 (en) 1971-09-30
NL7004087A (en) 1971-09-23

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee