FIELD: metal works.
SUBSTANCE: technological groove is made on the outer surface of the pipe. The bent pipe is installed in the collet of the collet clamp. A steel split ring is placed inside the collet clamp, which, when the collet is compressed, is inserted into the technological groove of the pipe. When fixing the pipe between its cylindrical surface and the surface of the collet in its compressed state, a gap is provided.
EFFECT: prevention of damage to the coating on the outer surface of the pipe by the collet.
2 cl, 3 dwg, 1 ex
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