GB824256A - Improvements relating to the brazing of high melting point metals - Google Patents

Improvements relating to the brazing of high melting point metals

Info

Publication number
GB824256A
GB824256A GB2688755A GB2688755A GB824256A GB 824256 A GB824256 A GB 824256A GB 2688755 A GB2688755 A GB 2688755A GB 2688755 A GB2688755 A GB 2688755A GB 824256 A GB824256 A GB 824256A
Authority
GB
United Kingdom
Prior art keywords
parts
brazing
melting point
high melting
interfaces
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
GB2688755A
Inventor
John Stephen Jackson
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB2688755A priority Critical patent/GB824256A/en
Publication of GB824256A publication Critical patent/GB824256A/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
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/32—Selection of soldering or welding materials proper with the principal constituent melting at more than 1550 degrees C
    • B23K35/327—Selection of soldering or welding materials proper with the principal constituent melting at more than 1550 degrees C comprising refractory compounds, e.g. carbides
    • 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
    • B23K35/3601—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 inorganic compounds as principal constituents

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Products (AREA)

Abstract

824,256. Brazing. BRITISH THOMSONHOUSTON CO. Ltd. Sept. 20, 1956 [Sept. 20, 1955], No. 26887/55. Class 83 (4). In brazing parts of high melting point metals such as tungsten, molybdenum, tantalum or titanium, under non-oxidizing conditions, powered chromium boride is employed as the brazing material. The chromium boride is applied to the interfaces of the parts as a suspension in water or alcohol and brazing is effected at 1550-1700‹ C. in hydrogen, inert gas or vacuum or in conditions in which oxygen and nitrogen are excluded from the interfaces during heating, pressure being applied to the parts during heating. Brazing may take place in a bell jar containing the non-oxidizing atmosphere using a thin-walled cylinder of high melting point metal or graphite disposed inside an induction heating coil and surrounding the parts, the cylinder being heated by induction and radiating heat to the parts. Alternatively an argon shielded arc is struck between one of the parts and an electrode, the argon shielding the parts, or the parts may be heated by resistance heating when the interfaces are covered with a volatile liquid, e.g. methylated spirits, to exclude air during heating. Both parts may be of the same metal or one may be of molybdenum and the other of tungsten.
GB2688755A 1955-09-20 1955-09-20 Improvements relating to the brazing of high melting point metals Expired GB824256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2688755A GB824256A (en) 1955-09-20 1955-09-20 Improvements relating to the brazing of high melting point metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2688755A GB824256A (en) 1955-09-20 1955-09-20 Improvements relating to the brazing of high melting point metals

Publications (1)

Publication Number Publication Date
GB824256A true GB824256A (en) 1959-11-25

Family

ID=10250759

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2688755A Expired GB824256A (en) 1955-09-20 1955-09-20 Improvements relating to the brazing of high melting point metals

Country Status (1)

Country Link
GB (1) GB824256A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3241230A (en) * 1962-10-12 1966-03-22 Roy I Batista Diffusion bonding of tungsten to tungsten
US3461458A (en) * 1962-10-18 1969-08-12 Bendix Corp Method of joining two surfaces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3241230A (en) * 1962-10-12 1966-03-22 Roy I Batista Diffusion bonding of tungsten to tungsten
US3461458A (en) * 1962-10-18 1969-08-12 Bendix Corp Method of joining two surfaces

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