Modernization of Railroad Wheel Manufacturing Technology at Evraz Ntmk / Kushnarev A. V.,Kirichkov A. A.,Bogatov A. A.,Puzyrev S. S. // METALLURGIST. - 2017. - V. 60, l. 9-10. - P. 1080-1086.

ISSN/EISSN:

0026-0894 / 1573-8892

Type:

Article

Abstract:

Results are provided for a study of the production process for manufacturing railroad wheels aimed at a reduction in metal consumption coefficient, material and energy expenditure, an increase in stability of quality characteristics, and wheel life. At the EVRAZ NTMK combine, comprehensive broad scale work is carried out, and new engineering solutions are found and introduced for converter processing and steel extra-furnace treatment for preparation of an ingot in a CBCM, and new production schemes are assimilated for deformation treatment during stamping, rolling, bending, straightening, and wheel sizing. As a result of combined operation of upsetting, flattening, and sizing of a billet in the preliminary stamping stage and also the use of a method for self-centering of a stamping in final forming dies, an increase is provided in the precision of a rough wheel and a reduction in original billet weight. A high level of automation and metrological provision for the production process of the pressing and rolling line, make it possible to accomplish adjustment of parameters in a real time regime and to minimize scrap. Stiffening of specifications with respect to wheel heating temperature for hardening and use of rational cooling rates for the wheel rim in quenching benches facilitates assimilation of production of hard (320 HB) and especially hard (350 HB) wheels with stable qualities. Operating properties of railroad wheels improve by a factor of 1.5, including due to introduction of complete profile machining of a wheel, shot-peening strengthening of a disk, and toughening ultrasonic and magnetic luminescence monitoring for quality.

Author keywords:

railroad wheel; cast billet; dies; stamping; steel extra-furnace treatment; continuous casting; modification; degassing; computer modeling; metrology; size precision; quenching; tempering; machining;

DOI:

10.1007/s11015-017-0410-3

Web of Science ID:

ISI:000395089000028

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	JAN
Publisher	SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013 USA
Language	English
EISSN	1573-8892
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
Author-Email	anatoly.kirichkov@evraz.com omd@urfu.ru
Funding-Acknowledgement	Russian Government {[}211, 02.A03.21.0006]; {[}11.1369.2014/K]
Funding-Text	The research was conducted within the scope of the project part of State Assignment N 11.1369.2014/K of 07.18.2014 (State Reg. No. 114122470051).; This study was carried out with financial support of Decree No. 211 of the Russian Government (Contract No. 02.A03.21.0006).
Number-of-Cited-References	12
Usage-Count-Last-180-days	5
Usage-Count-Since-2013	5
Journal-ISO	Metallurgist
Doc-Delivery-Number	EM1PH