Chamfering device for pipe used as gas pipe forms flat ramp having protruding edge around pipe

摘要

A pipe (1) having a primary casing material, which is preferably a corrosion protection material, is chamfered to apply a secondary casing material. A flat ramp with an edge protruding at a height of at least 1 mm is formed on the chamfering. The ramp is inclined at an angle of 10 to 35 degrees.