Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 178
switched oflf so that only some residual magnetism re-mained. The appearance of the outline of a crack defined by means of theMagnaflux powder, can be seen in Figure 5. The grayish white line ofthe crack is rather wide because the crack stood open to such extentthat it could be easily seen with the… … Figure 4—Applying the Magnaflux method of crack detection to steamturbine blading. the application repeated a number of times in order to be sure that thereactually is an incipient crack. It is necessary also to make certain that a crack actually exists andthat the Magnaflux powder is not outlining…
Locomotives · Steam-boiler explosions
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