Mandrel changing device for a piercing rolling mill

Details Mandrel changing device for a piercing rolling mill Mandrel changing device for a piercing rolling mill

B - Operations, Transporting

21

B

80/13

B21B 25/06 (2006.01)

Patent

CA 1079097

ABSTRACT OF THE DISCLOSURE The disclosure of the present invention concerns a piercing rolling mill with a mandrel changing device which has at least two groove-like recesses which can be positioned alternately in the rolling line in order to hold the mandrels, and a retractable mandrel stripper, and where the mandrel rod carries at its front end a pin on which the mandrel is attached in such a way that it is detachable against the effect of expanding springs or similar means.

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