employee
Izhevsk, Izhevsk, Russian Federation
employee
Izhevsk, Izhevsk, Russian Federation
The results of the full-scale experiment obtained at high-temperature 40H steel blank cooling with a flow of sub-cooled water are shown. To carry out experiments there is designed and assembled a device for a visual observation and fulfillment complex measurements of blank surface temperatures. For the 40H steel blank with a diameter of 24 mm, by the initial temperature of 800ºC, moving in a cooling area at a speed of m/s the experimental measurements of a surface temperature at cooling with a water flow at a speed of m/s are carried out. The initial water temperature is 20ºC. The measurements of a blank surface temperature were performed with the aid of a thermal imager of NEC TH9100 Pro WRI (Japan) type. There was not observed an intensive bleb steam formation in the flow of strong sub-cooled water. In the water flow at the blank border insignificant steam areas were observed which were carried away at once with a water flow. Changes of a typical temperature in a blank cooled with a water flow according to a time period are shown.
cooling, blank, gas-liquid medium flow, full-scale experiment
1. Polevoy, S.N., Yevdokimov, V.D. Engineering Material Strengthening: Reference Book. – M.: Mechanical Engineering, 1994. – pp. 496.
2. Author’s Certificate No. 579322 the USSR. Devices for Rolled Product Cooling / Chernenko V.T., Uzlov I.G., Khudik V.T., Polyakov S.N., Bukhinik E.N., Manko V.V., Kugushin A.A., Kazyrsky O.L., Yeremetov A.M. 1977.
3. Makarov, S.S., Dement'ev, V.B. Chislennoe mode-lirovanie teploobmena pri ohlazhdenii vysokotemperaturnoy metallicheskoy zagotovki iz stali 30HGSN2A // Naukoemkie tehnologii v mashinostroenii. – 2017. – № 9 (75). – S. 3–8.
4. Makarov S.S., Karpov A.I., Makarova E.V. Simulator of convective heat exchange at interaction of cooling liquid flow moving along a surface of heated metal cylinder // Chemical Physics and Mesoscopy. -2016. – Vol. 18. – No.1. – pp. 32-40.
5. Lipanov, A.M., Makarov, S.S., Karpov, A.I., Makarova, E.V. Chislennoe issledovanie ohlazhdeniya vysokotemperaturnogo metallicheskogo cilindra potokom gazozhidkostnoy sredy // Teplofizika i aeromehanika. – 2017. – T. 24. – № 1. – S. 53-59. doi: 10.1134/S0869864317010061.
6. Makarov S.S., Dement’yev V.B., Makarova E.V. Mathematical modeling of cooling high-temperature cylindrical workpieces // Procedia Engineering, 2016, vol. 150, pp. 393–399. doi: 10.1016/j.proeng.2016.06.734
7. Makarov, S.S. Numerical simulation of metal cylinder cooling process with flow of gas liquid medium moving horizontally in ring channel // Scientific Technical Bulletin of Information Technologies, Mechanics and Optics. – 2017. – Vol. 17. – No.2. – pp. 324-331.
8. Chetkarev, V. A., Dement'ev, V. B., Shavrin, O. I. Analiz i optimizaciya tehnologiy uprochneniya metalloprodukcii metodom VTMO. – Izhevsk: Institut prikladnoy mehaniki UrORAN, 1996. – 136 s.
9. Stali i splavy. Marochnik / pod red. V.G.Sorokina, M.A. Gervas'eva. – M.: Izd-vo Intermet Inzhiniring, 2001. – 608 s.
10. Makarov, S.S., Dementiev, V.B. Digital heat exchange simulation at cooling high-temperature metal blank of steel 30ChGSN2A // Science Intensive Technologies in Mechanical Engineering. – 2017. – No.9 (75). – pp. 3-8.
11. Lipanov, A.M., Makarov, S.S., Karpov, A.I., Makarov, E.V. Numerical investigation of cooling high-temperature metal cylinder with gas-liquid medium flow // Thermo-physics and Airflow Mechanics. – Vol.24. – No.1. – pp. 53-59. doi: 10.1134/S0869864317010061.
12. Makarov S.S., Dement’yev V.B., Makarova E.V. Mathematical modeling of cooling high-temperature cylindrical workpieces // Procedia Engineering, 2016, vol. 150, pp. 393–399. doi: 10.1016/j.proeng.2016.06.734
13. Chetkarev, V.A., Dementiev, V.B., Shavrin, O.I. Analysis and Optimization of Techniques for Metal Produce Strengthening by Method of VTMO. – Izhevsk: Institute of Applied Mechanics of Urals Branch of RAS, 1996. – pp. 136.
14. Steel and Alloys. Grade Catalogue / under the editorship of V.G. Sorokin, M.A. Gervasiev. – M.: Intermet Engineering Publishers, 2001. – pp. 608.
