Apparatus for removal of internal flash from electric-welded pip

Details Apparatus for removal of internal flash from electric-welded pip Apparatus for removal of internal flash from electric-welded pip

1980-06-17

1982-07-20

Ramsey, Kenneth J.

Metal fusion bonding

With means to remove, compact, or shape applied flux or filler

29 33A, 228125, 266 51, B23K 706, B23K 3110

Patent

active

043401635

ABSTRACT:
An apparatus for internal flash removal is intended for use in pipe manufacture and comprises a hollow supporting bar inserted into a pipe being welded and carrying an oxygen duct with a main nozzle and a cooled ferrite-holder. An additional nozzle having an oxygen conduit common with the main nozzle is arranged downstream of the main nozzle in the direction of welding. The main and the additional nozzles have oval outlets of different clear openings and are arranged at different acute angles to the weld in the same plane passing through the pipe axis and the weld. The apparatus ensures a quality weld surface finish inside the pipe.

REFERENCES:
patent: 1901803 (1933-03-01), Davis
patent: 2352306 (1944-06-01), Anderson
patent: 3163559 (1964-12-01), Thompson et al.
patent: 3436276 (1969-04-01), Thompson
Russian-language article having title "Manufacture of Electrically Welded Pipes Production Process", by Y. M. Matveev et al., Publishers Metallurgiya, 1967, Moscow.

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