TPT July 2010

I nspectIon , t estIng & Q ualIty c ontrol

None of the processes reviewed here affects the strength, soundness, and serviceability of a production run of tubing or pipe. Yet they figure importantly in its value, to both producer and customer. Taken together, they command the fulcrum point at which a length of perfect tube is known to be a length of perfect tube, and can be certified and sold as such. These specialities require the creation and maintenance of statistical databases on every element that contributes to tube manufacture: from materials through coatings, finishes, and insulation; including the fail-safe procedures for excluding all flaws and aberrations from an exacting, high-speed operation. The data collected must be defensible, available in graphic form, and preserved indefinitely for reference purposes. Here, too, inspection, testing, and quality control leave no imprint on the product.

But without them tube and pipe manufacturers would be unable

to offer – and stand behind – the superb, high-tech, saleable commodities for which they are justly renowned.

Photo: Aicon 3D Systems GmbH