Method and apparatus for forming an air gap pipe

Details Method and apparatus for forming an air gap pipe Method and apparatus for forming an air gap pipe

B - Operations, Transporting

21

C

26/187, 327/1.5

B21C 37/15 (2006.01) F01N 13/14 (2010.01) F01N 13/18 (2010.01) B21D 53/88 (2006.01) B23K 37/053 (2006.01) B23P 15/00 (2006.01) F01N 13/08 (2010.01) F01N 3/00 (2006.01)

Patent

CA 1252990

ABSTRACT A process and an apparatus for forming an air gap pipe are provided. Inner and outer pipes are bent or deformed into comparable configurations such that the inner pipe can be mounted within the outer pipe. The outer pipe then is split longitudinally by a preprogrammed cutting apparatus. The cutting of the outer pipe terminates just short of the complete longitudinal length of the pipe to facilitate rematching later in the process. The cutter includes a follower to trace the actual configuration of the pipe and thereby to offset differences from one pipe to the next. An array of clamps are provided to align the outer pipe halves relative to one another and to facilitate the reattachment.

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