Method of and apparatus for producing tubes of metal

Details Method of and apparatus for producing tubes of metal Method of and apparatus for producing tubes of metal

B - Operations, Transporting

21

B

B21B 17/02 (2006.01) B21B 19/06 (2006.01) B21B 37/78 (2006.01) B21B 25/02 (2006.01) B21B 45/02 (2006.01)

Patent

CA 2463351

In the planetary skew rolling blooms to form seamless metal tubing or pipe the internal tool is retracted at the leading and/or trailing end of the tubular bloom to allow the rolls to seal the end or ends and prevent coolant from entering the rolled tubing or bloom. The internal tool is advanced back into its normal rolling position after the end has passed the rolling location.

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