Fine grinding for a gigantic infrastructure project
Even the smallest irregularities on the pipes are ground down until their surface is perfectly smooth. Europipe in Mülheim an der Ruhr is producing 90,000 large-diameter pipes for Nord Stream 2. Each pipe segment is 12 metres long and has a constant internal diameter of 1,153 millimetres. Once the pipes have been welded shut, they are inspected inside and out. Ultrasound and x-ray technology is used to identify potential flaws in the material or the weld seams. More than half of the production steps in Europipe’s plant are about quality control.
Source: © Nord Stream 2 / Wolfram Scheible
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Photo may be used for news reports about Nord Stream 2 if the source is credited: © Nord Stream 2 / Wolfram Scheible.