Plastic and nonmetallic article shaping or treating: processes – Furnace lining formation or repair
Patent
1990-06-14
1992-07-07
Aftergut, Karen
Plastic and nonmetallic article shaping or treating: processes
Furnace lining formation or repair
264 35, 264 36, 264 81, 264309, 264334, 264337, 266281, 427140, 427423, B05D 108, B32B 3500, C21B 706, F27D 116
Patent
active
051280752
ABSTRACT:
A method of repairing an eroded refractory wall pierced by one or more openings using a ceramic welding technique. A member of shape substantially complementary to the desired shape of the repaired opening is placed into each opening so that the member projects from the refractory wall by an extent at least equal to the local depth of erosion. Such complementarily-shaped member is so composed that it is adapted to withstand ceramic welding temperatures. A desired refractory repair mass is built up, by ceramic welding, adherent to the eroded wall and surrounding the complementarily-shaped members(s) while leaving its end or their ends exposed, and the complementarily-shaped member(s) is or are thereafter removed from the repaired openings(s). Such complementarily-shaped member may, for example, be of refractory carbon or of steel, such as stainless steel. Such a steel member may be tubular for the circulation of coolant.
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Tanizawa, Y., JP68,410/89, Patent Abstracts of Japan, vol. 13, No. 273 (C-609) [3621] Jun. 22, 1989, 1-68410(A).
Deschepper Pierre
Robyn Pierre
Aftergut Karen
Glaverbel
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