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2016 №10 (07) DOI of Article
2016 №10 (09)

The Paton Welding Journal 2016 #10
TPWJ, 2016, #10, 41-43 pages
Induction device for heat treatment of welded joints of railway rails

Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                      0957-798X (print)
Issue                       #10, 2016 (October)
Pages                      41-43
E.A. Pantelejmonov and R.S. Gubatyuk
E.O. Paton Electric Welding Institute, NASU 11 Kazimir Malevich Str., 03680, Kiev, Ukraine. E-mail: office@paton.kiev.ua
The paper studies the design peculiarities of induction device for heat treatment of welded joints of railway rails and gives the results of its testing. The device uses the inductors with magnetic cores and matching transformers, developed and manufactured at PWI. The inductors are located opposite one another from rail sides. Inductive wire of the inductor is divided for two parallel conductors, which follow the shape of rail surface, surround part of running surface, inner edge of rail head, rail web and part of rail flange with increased air gaps in area of rail web and blades. The magnetic cores are located over rail head running surface, inner edges of head, web and lower surface of rail flange. Testing of induction device at 2.4 kHz current frequency showed uniform distribution of temperature field in rail section and absence of overheating of rail blades. Heating of rail zone of 50–55 mm width to 850–910 °C temperature took 140 s. Nominal power of supply source is 90 kW. 7 Ref., 4 Figures 4.
Keywords: rails, rail welded joints, heat treatment, induction heating, inductor
Received:                04.06.16
Published:               23.10.16
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