Flanged pipe unit and method of producing same

Details Flanged pipe unit and method of producing same Flanged pipe unit and method of producing same

1997-02-21

2000-01-25

Kashnikow, Andres

Pipes and tubular conduits

Combined

With end structure

138177, 138178, 285368, 285412, F16L 902

Patent

active

060168439

ABSTRACT:
To produce a flanged pipe unit, a separate flange is put on a pipe and then the pipe is subjected to a punching to achieve an interlocked connection between the flange and the pipe. The flanged pipe unit produced by the method of the invention comprises a metal pipe including a larger expanded portion, a smaller expanded portion and a raised portion which are axially aligned so that the smaller expanded portion is placed between the larger expanded portion and the raised portion; and a metal flange having a through bore through which the pipe passes, the through bore including a larger diameter portion, a smaller diameter portion and a tapered end portion which are axially aligned so that the smaller diameter portion is placed between the larger diameter portion and the tapered end portion. The larger expanded portion, the smaller expanded portion and the raised portion of the pipe are intimately engaged with the larger diameter portion, the smaller diameter portion and the tapered end portion of the through bore respectively thereby to establish a dove-tail coupling between the pipe and the flange.

REFERENCES:
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