NEW DIRECTION IN LIQUID QUENCHING MEDIA DEVELOPMENT


  • N.I. Kobasko Intensive Technologies Ltd.
  • A.A. Moskalenko Institute of Engineering Thermophysics of NASU
  • P.N. Logvinenko Institute of Macromolecular Chemistry of NASU
  • V.V. Dobryvechir Intensive Technologies Ltd.
Keywords: IQ process, new direction, low convention, special polymers, film boiling elimination, distortion, strength, service life

Abstract

It is shown that in contrast to well known surface active additives (SAA), affecting physical properties of a liquid, the elimination of film boiling during quenching is achieved by creation of the thin polymeric layer on the surface of hardened metal. It is performed by using special polymers of optimal concentration in water. The obtained insulating polymeric layer decreases initial heat flux density below its critical value and by this way eliminates completely the film boiling without affecting clearly the physical properties of a liquid.     Based on this fact and on the principle of decreasing distortion, quench crack formation, and increasing strength of material during intensive quenching,  it is proposed to use low concentration of special polymers instead of their high concentration in water. All of this results in significant strengthening of metal, saves costly materials, and increases service life of hardened products.   

 

References

1. Kobasko, N.I., Prokhorenko, N.I., Effect of quenching rate on the formation cracks in steel 1045, Metal Science and Heat Treatment, Vol. 6, No.2, 1964, pp. 104 – 106.
2. Kobasko, N.I., Aronov, M.A., Powell, J.A., Totten, G.E., Intensive Quenching Systems: Engineering and Design, ASTM International, W. Conshohocken, USA, 2010, 234 p. doi: 10.1520/mnl64-eb
3. Rath, J., Luebben, T., Hoffmann, F., Zoch, H. W., Generation of compressive residual stresses by high speed water quenching, International Heat Treatment and Surface Engineering, 4 (4), 2010, 156 - 159.
4. Kobasko, N.I., Aronov, M.A., Ichitani, K., Hasegawa, M., Noguchi, K., High compressive residual stresses in through hardened steel parts as a function of Biot number, Resent Advances in Fluid Mechanics, Heat & Mass Transfer and Biology, WSEAS Press, Harvard, pp., 2012, pp. 36 – 40. ISBN: 978- 1-61804-065-7.
5. Kobasko, N.I., Transient nucleate boiling as a basis for designing austempering and martempering new technologies, SSRG International Journal of Applied Physics (SSRG-IJAP), 2019, Vol. 6, Issue 2, pp. 5 – 13, ISSN: 2350 – 0301.
6. Ferguson, B.L. Applying DANTE Heat Treat Modeling to Intensive Quenching, Presentation at the Intensive Quenching Workshop held on April 24 in Cleveland, Ohio, USA, 2013.
7. Kovalenko. G.V., Kobasko, N.I., Khalatov, A.A., A method of Hardening of Steel Parts, USSR Certificate No. 1355634, 1987.
8. Kobasko, N. I., Moskalenko, A. A., Intensification of quenching by means of use water polymer solutions, Promyshlennaya Teplotekhnika, 18 (6), 1996, pp. 55–60.
9. Moskalenko, A. A., Kobasko, N. I., Tolmacheva, O. V., Totten, G. E., Webster, G. M. Quechants Characterization by Acoustical Noise Analysis of Cooling Properties of Aqueous Poly (Alkylene Glycol) Polymer Quenchants. Proc. of the 2nd Int. Conf. on Quenching and Control of the Distortion, (USA), 1996, pp.117–122.
10. Kobasko, N. I. , Real and Effective Heat Transfer Coefficients (HTCs) Used for Computer Simulation of Transient Nucleate Boiling Processes during Quenching. Materials Performance and Characterization, 2012, 1 (1), doi: 10.1520/ mpc – 2012–0012.
11. Logvynenko, P. N., Karsim, L. O., Riabov, S. V., Moskalenko, A. A., Kobasko, N. I. , Oil quenchant, UA Patent № 104380, 2016.
12. Logvynenko, P. N., Moskalenko, A. A., Kobasko, N. I., Karsim, L. O., Riabov, S. V., Experimental Investigation of the Effect of Polyisobutilene Additives to Mineral Oil on Cooling Characteristics, Materials Performance and Characterization, 2016, 5 (1), doi: 10.1520/ mpc20150072.
13. Kobasko, N.I., Moskalenko, A.A., Logvinenko, P.N., Totten, G.E., Dobryvechir, V.V., New Era in Designing and Governing Cooling Intensity of Liquid Quenchants to Decrease Distortion, International Journal of Current Research, 2018, Vol.10, Issue 8, pp. 72631- 72636.
14. Kobasko. N.I., High Quality Steel vs Surface Polymeric Layer during Quenching, Lambert Academic Publishing, 2019, 102 p. ISBN: 978-613-9-45596-6.
15. Liscic, B., Measurement and Recording of Quenching Intensity in Workshop Conditions Based on Temperature Gradients. Materials Performance and Characterization, 2016, 5 (1), 209–226. doi: 10.1520/ mpc20160007.

Abstract views: 10
PDF Downloads: 8
Published
2019-05-30
How to Cite
Kobasko, N., Moskalenko, A., Logvinenko, P., & Dobryvechir, V. (2019). NEW DIRECTION IN LIQUID QUENCHING MEDIA DEVELOPMENT. Thermophysics and Thermal Power Engineering, 41(3), 33-40. https://doi.org/https://doi.org/10.31472/ttpe.3.2019.5
Section
Heat and Mass Transfer Processes and Equipment, Theory and Practice of Drying