GB1267837A - Induction heating brazing method - Google Patents

Induction heating brazing method

Info

Publication number
GB1267837A
GB1267837A GB2982669A GB2982669A GB1267837A GB 1267837 A GB1267837 A GB 1267837A GB 2982669 A GB2982669 A GB 2982669A GB 2982669 A GB2982669 A GB 2982669A GB 1267837 A GB1267837 A GB 1267837A
Authority
GB
United Kingdom
Prior art keywords
alloy
assembly
brazing
temperature
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
GB2982669A
Inventor
Austin Dixon
Stanley Jay Froitlich
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Priority to GB2982669A priority Critical patent/GB1267837A/en
Priority to DE19691932488 priority patent/DE1932488A1/en
Priority to BE735770 priority
Publication of GB1267837A publication Critical patent/GB1267837A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/001Interlayers, transition pieces for metallurgical bonding of workpieces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00Soldering, e.g. brazing, or unsoldering
    • B23K1/002Soldering by means of induction heating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24Selection of soldering or welding materials proper
    • B23K35/30Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/3006Ag as the principal constituent

Abstract

1,267,837. Brazing. WESTINGHOUSE ELECTRIC CORP. 12 June, 1969, No. 29826/69. Heading B3R. In brazing a non-ferrous metal member to a metal member, a layer of brazing alloy is inserted between the members, the assembly is subjected to induction heating which is regulated by pyrometric observation to provide a brazing temperature in slight excess of the liquidus temperature of the brazing alloy, the heating is terminated after a predetermined period and the assembly is gas-cooled to a temperature for hardening the brazing alloy within thirty seconds after reaching the brazing temperature, a uniform squeeze force being applied to the assembly at least during the heating and cooling periods. A non-ferrous member 5 of agehardened chromium-beryllium alloy, aluminium, aluminium alloy or nickel base alloy and a member 6 of silver-tungsten or copper-tungsten are cleaned by acid, sprayed with flux and assembled with a preformed member 7 of brazing alloy, the assembly being held in a water-cooled induction coil 9 between a stop 14 and a support 12 carried on a fluid-actuated piston-rod 11. With the assembly under squeezing force the coil 9 is energized from a motor generator 18 controlled by an infra-red pyrometer 22 directed to an emissivity stabilized area, i.e. provided with a stabilized radiation indication surface by spray coating with a high temperature paint, of the surface of the assembly to attain the preselected temperature and hold it for a predetermined time after which the coil is de-energized and forced cooling of the assembly by air jet 26 is effected. The brazed assembly is automatically unloaded from the apparatus by a solenoid-operated valve 15 under control of a timer 30 to cause pistonrod 11 to retract subsequent to air cooling. The brazing alloy may be a silver, copper, zinc, cadmium, phosphorus alloy, the member 6 may be a tip for a power circuit breaker contact and the member 5 may be a copper-chromium alloy tip support member.
GB2982669A 1969-06-12 1969-06-12 Induction heating brazing method Expired GB1267837A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2982669A GB1267837A (en) 1969-06-12 1969-06-12 Induction heating brazing method
DE19691932488 DE1932488A1 (en) 1969-06-12 1969-06-26 A method for forming solder connections
BE735770 1969-07-07

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB2982669A GB1267837A (en) 1969-06-12 1969-06-12 Induction heating brazing method
DE19691932488 DE1932488A1 (en) 1969-06-12 1969-06-26 A method for forming solder connections
BE735770D BE735770A (en) 1969-06-12 1969-07-07

Publications (1)

Publication Number Publication Date
GB1267837A true GB1267837A (en) 1972-03-22

Family

ID=27159311

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2982669A Expired GB1267837A (en) 1969-06-12 1969-06-12 Induction heating brazing method

Country Status (3)

Country Link
BE (1) BE735770A (en)
DE (1) DE1932488A1 (en)
GB (1) GB1267837A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3256975A (en) * 1963-11-29 1966-06-21 Leaming Ind Inc Container
EP1749611A1 (en) * 2005-08-03 2007-02-07 General Electric Company Method of brazing a stator bar to a clip having fixed inductive or resistive heating source and a conductive mass
EP2255913A1 (en) * 2009-05-19 2010-12-01 Siemens Aktiengesellschaft Components with a layer made of low melting point component with internally soldered components and soldering method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3256975A (en) * 1963-11-29 1966-06-21 Leaming Ind Inc Container
EP1749611A1 (en) * 2005-08-03 2007-02-07 General Electric Company Method of brazing a stator bar to a clip having fixed inductive or resistive heating source and a conductive mass
EP2255913A1 (en) * 2009-05-19 2010-12-01 Siemens Aktiengesellschaft Components with a layer made of low melting point component with internally soldered components and soldering method

Also Published As

Publication number Publication date
DE1932488A1 (en) 1971-01-07
BE735770A (en) 1969-12-16

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