Welding; Theory, Practice, Apparatus And Tests, Electric, Thermit And Hot-Flame Processes
Welding; Theory, Practice, Apparatus And Tests, Electric, Thermit And Hot-Flame Processes
Hart, Richard N. (Richard Newell), B. 1882
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chisels and welded; all repaired parts were annealed with burners. In two spots where there were several adjoining cracks, a part of the furnace was cut out and replaced by a welded piece. No Digitized by VjOOQIC I04 WELDING leak was observed at any of the loo places so repaired at the hydro- static or steam tests. " Only the sweating of a few drops, caused by trifling lamina- tions, were discovered, and a little calking restored the water- tightness at such spots. The work lasted three weeks a...nd cost $300. From the month of March of that year the steamer has been on the Algiers voyage, which is very trying for boilers Fig. 52. — Galvanized tank witn oxy-acetylene welded end piece (heat expansion would shear rivets). on account of its shortness, the fires being banked and boiler temperatures changed so frequently. No trouble has been ex- perienced with any of the welded parts." *' Repairing Corroded Parts on the 'Cholon': " Oxy-acetylene welding may be used to add metal directly to the surfaces of plates, to repair corroded spots, such as are fre- quently found in various parts of boilers.
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