TPT November 2010

B lasting , C oating and G alvanizing T echnology

Manual grit-blasting of the inside diameter of a tube is a difficult and time-consuming procedure that yields disappointing results: areas that are either not clean or cleaned too vigorously,

leaving weak spots. In an automated blast cycle, a titanium lance travels at consistent speed through the tube, providing even contact and excellent part quality. That evolution in processing also typifies the other two specialities considered here. The strength, ease of fabrication, versatility, and low cost of carbon steel commend it for tubular products. But unprotected steel surfaces are famously susceptible to corrosion. Hence coating and galvanizing; and, with them, resistance to moisture, oxygen, solvents, temperature extremes, and a host of other threats to a long and reliable service life for the tubular product or part.

Photo: Zircotec