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The principal aim of the project was to extend existing fundamental knowledge of the ceramic welding process applied to coke oven repair with emphasis on detailed understanding and measurements of weld properties. A high speed film was taken of ceramic welding which, together with the practical investigations, led to its description as a four stage process. Firstly, the welding powder is sprayed from the lance nozzle to the oven walls. Exothermic reactions then take place in the second stage of a wall-associated reaction where the heat released sinters and melts the crushed, conveyed refractory onto the damaged area. The fused material forms an impermeable layer so that reactions taking place within the weld occur in a third stage of reducing conditions. Finally, the fourth stage relates to the cooling and devitrification of the weld. Each of these stages was investigated.

Additional information

Authors: BRITISH COAL CORPORATION, British Coal Corporation, Coal Research Establishment, Cheltenham (GB)
Bibliographic Reference: EUR 13048 EN (1990) 191 pp., MF, ECU 8, blow-up copy ECU 25
Availability: (2)
Record Number: 199011762 / Last updated on: 1994-12-02
Original language: en
Available languages: en
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