Moscow, Moscow, Russian Federation
Moscow, Moscow, Russian Federation
Moscow, Moscow, Russian Federation
Moscow, Moscow, Russian Federation
BBK 392 Железнодорожный транспорт
The issues of ensuring stable quality of coil springs of passenger rolling stock and environmental cleanliness of the heat treatment are considered. As a solution, a new technology of intensive quenching cooling is proposed – volumetric water spraying of spring steels – 60X2HA, 60X2HFA, 51CrV4 using process water instead of oil as a quenching medium. A number of spring samples are experimentally studied, which have passed the proposed version of quenching cooling. It is found out that the quality indicators of the obtained springs meet the basic requirements of regulatory documents for the products. To implement the technological process of quenching cooling by volumetric water spraying, an experimental equipment has been developed that allows proceeding to the development of an industrial quenching cooling system.
spring steels, equipment, evaluation, strength, parameters, transport
1. Rakhshtadt AG. Spring steels and alloys. Moscow: Metallurgiya; 1982.
2. Kudryavtsev IV. Internal stresses as a reserve of strength in machine building. Moscow: Mashgiz; 1951.
3. Shepelyakovsky KZ. Hardening of machine parts by surface hardening under induction heating. Moscow: Mashinostroenie; 1972.
4. Shepelyakovsky KZ. Technology of induction surface hardening. Thermal processing in mechanical engineering: handbook Moscow: Mashinostroenie; 1980.
5. Fedin VM. Volumetric surface hardening of rolling stock parts and the upper structure of the track. Moscow: Intext; 2002.
6. Fedin VM, Ronzhina YuV, Borts AI, Vakulenko SP, Tikhonov DP, Ushakov BK. Thermal hardening of elastic elements of railway rolling stock by a fast-moving stream of water: monograph. Moscow: VINITI RAS; 2012.
7. Smirnov LA, Fedin VM, Ronzhina YuV. Ensuring hereditary fine-grained steels of reduced and regulated hardenability. Proceedings of the Scientific and Practical conference. Yekaterinburg: Uralsky Rabichy; 2015.
8. Redkin LM, Shavrin OI, Potapov AS. Increasing the durability of rigid springs by high-temperature thermo-mechanical treatment. The design and technology of the manufacture of springs. Izhevsk; 1986.
9. Mikolenko TP. Innovative solutions for railways: heavy-duty springs for rolling stock. Wagonny Park. 2014;5:22-26.
10. GOST 32208 Springs for spring suspension of railway rolling stock. The method of testing for cyclic durability Moscow: Standartinform; 2014.
