Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 148
and it corrodes faster if cooled irregularly than if cooleduniformly and slowly. The more porous the material the morerapidly will corrosion proceed and the deeper and more distinctivewill it be. Blowholes of any size invite rust. Metals of crystallinestructure are better conductors of electricity… … A Corroded Stay. 138 THE LOCOMOTIVE. [January, It has been demonstrated that iron and steel are porous mi-croscopically speaking and under high pressure (as in hydraulicpressure cylinders), water may be forced through thin walls inamounts sufficient to show as beads of sweat. Gases are absorbedinto…
Locomotives · Steam-boiler explosions
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