B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
117/56
B05D 1/12 (2006.01) B05B 7/20 (2006.01) B05C 5/04 (2006.01) C03B 5/43 (2006.01) C04B 35/65 (2006.01) C04B 35/66 (2006.01) C04B 37/00 (2006.01)
Patent
CA 2026944
ABSTRACT CERAMIC WELDING PROCESS AND LANCE FOR USE IN SUCH PROCESS A ceramic welding process which facilitates the formation of high quality erosion-resisant and corrosion-resistant refractory weld masses comprises projecting against a surface (1) an oxidisable mixture of refractory particles and particles of a fuel material in a carrier gas (7) which contains at least sufficient oxygen for substantially complete oxidation of the fuel particles, whereby sufficient heat is released for at least surface melting of the projected refractory particles and a ceramic weld mass is formed against said surface (1) under the heat of oxidation of the fuel particles, wherein at least one additional stream of gas (9) is projected against said surface (1) so as to form a substantially continuous gas curtain surrounding said carrier gas stream(s). The invention also provides apparatus to effect the ceramic welding process, comprising a lance (5) having a first outlet (6) for the discharge of such ceramic welding powder in a carrier gas (7) along a discharge path towards the surface (1), and a second outlet (8) for the discharge of gas to form the substantially continuous gas curtain.
Mottet Leon-Philippe
Robyn Pierre
Zivkovic Alexandre
Glaverbel
Swabey Ogilvy Renault
LandOfFree
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