GB727329A - Improvements in or relating to coating metals - Google Patents

Improvements in or relating to coating metals

Info

Publication number
GB727329A
GB727329A GB2315452A GB2315452A GB727329A GB 727329 A GB727329 A GB 727329A GB 2315452 A GB2315452 A GB 2315452A GB 2315452 A GB2315452 A GB 2315452A GB 727329 A GB727329 A GB 727329A
Authority
GB
United Kingdom
Prior art keywords
metal
brazing
hard
coated
hard metal
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
GB2315452A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2315452A priority Critical patent/GB727329A/en
Publication of GB727329A publication Critical patent/GB727329A/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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)

Abstract

A process for coating hard metals comprises coating the said hard metal with a composition consisting of a brazing metal in atomized powder form, Fe, Ni, Co, W or other metal powder which is capable of being wetted by the brazing metal and during the heating does not dissolve completely in the brazing metal, a thermoplastic resin which distils without substantial residue, e.g. polystyrene, polyvinyl chloride and polymethyl methacrylate, and an organic solvent, e.g. benzene, toluene, acetone and methyl ethyl ketone, and heating the coated hard metal in a non-oxidizing atmosphere at a high enough temperature for the brazing metal to melt and wet the surface of the hard metal. A hard metal tool may be made by brazing the coated hard metal to steel, or reducing the said coated metal to the desired size and clamping it to a steel body. Examples are given wherein iron and copper powders are used.
GB2315452A 1952-09-15 1952-09-15 Improvements in or relating to coating metals Expired GB727329A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2315452A GB727329A (en) 1952-09-15 1952-09-15 Improvements in or relating to coating metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2315452A GB727329A (en) 1952-09-15 1952-09-15 Improvements in or relating to coating metals

Publications (1)

Publication Number Publication Date
GB727329A true GB727329A (en) 1955-03-30

Family

ID=10191040

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2315452A Expired GB727329A (en) 1952-09-15 1952-09-15 Improvements in or relating to coating metals

Country Status (1)

Country Link
GB (1) GB727329A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1279208B (en) * 1958-03-25 1968-10-03 Emi Ltd Method for applying a firmly adhering coating layer to an electrode of an electrical discharge tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1279208B (en) * 1958-03-25 1968-10-03 Emi Ltd Method for applying a firmly adhering coating layer to an electrode of an electrical discharge tube

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