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2017 №12 (05) DOI of Article
2017 №12 (07)

The Paton Welding Journal 2017 #12
The Paton Welding Journal, 2017, #12, 33-37 pages

Improvement of the technology of producing extended composite transition pieces of steel 20 — steel 08Kh18N10T made by the method of hot screw rolling in vacuum

B.V. Borts, I.M. Nekhlyudov, N.D. Rybalchenko, V.I. Sytin and I.A. Vorobjov

NSC «Kharkiv Institute of Physics and Technology» of the NAS of Ukraine 1 Academichna Str., 61108, Kharkiv, Ukraine. E-mail: nsc@kipt.kharkov.ua
Changes in mill design using screw rolling in calibrated rolls were proposed and tested. Solid-phase welding in upgraded vacuum rolling mill was used to produce extended bimetal transition pieces with a helical texture that allows making sound solid-phase joints of more than 200 mm length of low-carbon steel and 08Kh18N10T steel. Investigation results were used to develop the technology of screw rolling in calibrated rolls. 12 Ref., 8 Figures.
Keywords: vacuum screw rolling, extended tubular element of the transition piece, bimetal composites, upgrading
Received:                02.10.17
Published:               16.01.18
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