Method for reduction and sizing of welded pipes and mill for effecting same

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United States of America Patent

PATENT NO 4260096
SERIAL NO

05933115

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Abstract

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Disclosure is made of a process for reduction and sizing of welded pipes, whereby a pipe is reduced in diameter in passes formed by rolls of alternating horizontal and vertical stands. The weld zone is deformed by portions of roll passes of an equal curvature. Disclosure is further made of a mill for effecting the above method, which comprises alternating horizontal and vertical stands with rolls whose working surface is defined by arcs of at least two radii. The radius of at least one of said arcs is equal to the radius of the roll welding pass. The apices of said arcs of an equal radius are in the same plane extending through the longitudinal axis of the mill and on the line of motion of the weld.

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International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mednikov, Jury A ulitsa Svobody, 145, kv. 19, Chelyabinsk, SU 1 13
Rozen, Alexandr S Gorodok ITR Metallurgicheskogo Zavoda, dom 19, kv. 11, Taganrog Rostovskoi oblasti, SU 1 13
Samarynov, Jury V prospekt Lenina, 61, kv. 14, Chelyabinsk, SU 1 13

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