Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 281
between the weld metal and the plate and partly-through the weld itself. Seriously defective welds are almost invariably due to lack of con-trol of the welding procedure or inadequately trained welding operators.For this reason, it is the intent of most of the codes relating to weldingto provide… … Figure 3—Tool used for trepanning a plug from a welded seam.Figure 4—Special spring and split pilot developed for trepanningtool. Figure 5—Hozv the plug is withdrawn from the hole. However, before the adoption of that code, many vessels had been builtby fusion welding, and there was often but…
Locomotives · Steam-boiler explosions
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