Production of thick welded steel pipe and apparatus thereof

Details Production of thick welded steel pipe and apparatus thereof Production of thick welded steel pipe and apparatus thereof

B - Operations, Transporting

21

B

78/23, 80/52

B21B 23/00 (2006.01) B21C 37/08 (2006.01) B21D 5/01 (2006.01)

Patent

CA 1138691

ABSTRACT OF THE DISCLOSURE For producing steel pipe from thick steel plate, a displacing means, for example, a foreign member, is arranged lengthwise on a die internal cavity such that the displacing means meets an edge groove of the pipeforming steel plate, which is then subjected to an O-ing operation to produce a thick welded pipe with minimum peaking.

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