Iron corrosion; anti-fouling and anti-corrosive paints . plate in twelve hours bymoistening with water and leaving it to dry. alone should afford an extremely durable, acid-resistingcoating. How great is the damage done to ironwork bysulphurous smoke gases is shown by numerous examples, afew of which are cited below :— In June, 1893, there was found in a corner of the IRON-CORBOSION AND ANTI-CORROSIVE PAINTS. 21 abutment of the Swiss National Eailway bridge where thishne crosses the busy Aran track of the Swiss North-eastEailway, a steel chisel which had evidently been left thereby one of the
Iron corrosion; anti-fouling and anti-corrosive paints . plate in twelve hours bymoistening with water and leaving it to dry. alone should afford an extremely durable, acid-resistingcoating. How great is the damage done to ironwork bysulphurous smoke gases is shown by numerous examples, afew of which are cited below :— In June, 1893, there was found in a corner of the IRON-CORBOSION AND ANTI-CORROSIVE PAINTS. 21 abutment of the Swiss National Eailway bridge where thishne crosses the busy Aran track of the Swiss North-eastEailway, a steel chisel which had evidently been left thereby one of the fitters sixteen years before. This tool wasexamined by me (von Tetmayr) and found to be completelyrusted away. With the exception of the under side on whichit had lain and which was rusted only to the depth of about-jV inch {11 mm.), the chisel was covered on all sides witha layer of | inch (6 mm.) and more of rust. Such an exten-sive corrosion of steel in the air could only have been broughtabout by the action of water impregnated with sulphurous or. Pig. 4 (natural size).—Iron plate with rust spots caused by water. sulphuric acid, produced during the brisk traftic on the Aranline and deposited, with atmospheric moisture, on the acid-proof painted surfaces of the bridge, whence it dropped on tothe tool in question. Among the plentiful instances of the rusting of ironstuctures by the action of smoke fumes, reference may bemade to that recorded in the Eevue Generah des Cltemins de Fer,June, 1893, p. 366. Again, there are various street bridges on the Swiss rail-ways which at present exhibit severe damage due to rustcorrosion. 22 lEON-COHEOSION AND ANTI-COEROSIVE PAINTS. District Engineer Ebert, of the Bavarian State Eailways,reports the subjoined interesting case :— The bridge in the Central Station at Munich and theCoppinger Strasse bridge at the Augsburg Station were botherected about the end of the sixties. The maintenance wasof the usual kind, the ordinary oil paint be
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectcorrosionandanticorr
