In X-melt, the speed of the flow front is high in knit weld line area, 880 cm/s, and low in butt weld
line area, 40 cm/s.
Figure 15 shows polarized light micrographs of dissimilar nylon butt welds
made at penetrations of 0.
Researchers found that butt welds
of HPS70W plates could be optimized and thus perform satisfactorily.
TIP 0402-31 Guidelines for evaluating the quality of boiler tube butt welds
with ultrasonic testing
Cracking was occurring in tubes on the furnace floor, at primary air ports, at smelt spout openings, and at composite-to-composite butt welds
in the lower furnace.
The first indication of a problem was water dripping from butt welds
in brand new stainless steel piping," recalls Gregory Kobrin, a materials engineer with E.
The company says full testing is quick and easy to achieve on butt welds
, joints or other welded pipe components.
This systematic study examined the cause of severe cracking of SS304L/SA210 composite waterwall tubes at primary air ports, membrane bar wastage, and cracking of butt welds
located between the bottom of the primary air ports and the floor in the recovery boiler at the Irving Pulp & Paper's Saint John mill.
of corrosion-resistant PVDF or PP piping can be made precisely with the new SP series of noncontacting infrared welders.
At the peak of production, 111 butt welds
were being produced per day.