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Ukrainsky Nauchno-issledovatelsky Institut Spetsialnykh Stalei, Splavov

Georgy Iosifovich Khaustov

Anatoly Iosifovich Plyshevsky

Evgeny Pavlovich Ponomarenko

Jury Kuzmich Belov

Nikolai Konstantinovich Erokhov

Pavel Ivanovich Orro

Iosif J Korobochkin

Nikolai Grigorievich Kovalevsky

Ivan Mikhailovich Obukh-Shvets

Andrei Mikhailovich Arkhangelsky

Alexandr Davydovich Vereschagin

Jury Georgievich Goreslavets

Alexandr Ivanovich Lobanov

Valentin Anatolievich Makarov

Vladimir I Savchenko

Grigory D Duply

Olga S Vilyams

A method comprises diffusion metal coating of pipes carried out in a vacuum chamber which contains metal evaporators. Prior to coating process a metal is fed into the interior of each pipe with the melting temperature thereof being substantially below that of the pipe metal. The metal coating of pipes is effected at a temperature above the melting temperature of the metal disposed within the pipes which are continuously rotating about their axes while axially advancing through the metal evaporator.

Method for applying protective coating to metal pipes

A mill is disclosed, said mill comprising a plug head for plugging tubes, one pulling device adapted to draw a tube with a plug through the plug head, a gear for taking tubes off the plug mounted in the rear portion of the pulling device and composed of power cylinders secured on the pulling device at an acute angle to a plane passing through guides of the pulling device with the rods of the power cylinders carrying jaws for gripping the tube being plugged, the jaws being attached to the rods, and two pockets wherein the tubes and plugs are placed after the tubes have been taken off the plugs. The invention is intended for providing a mill featuring an improved production rate with the ensuing augmentation of the production of a drawing mill, and having smaller overall dimensions.

Mill for plugging tubes and taking them off plug

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Nikopol, undefined

Georgy Iosifovich Khaustov