Научная электронная библиотека ULRICH'S Periodicals Directory

Сибирский государственный университет
науки и технологий имени академика М.Ф. Решетнева

Сибирский аэрокосмический журнал
ISSN 2712-8970 (Print) ISSN 2782-5760 (on-line)

Сведения об образовательной организации

UDK 621.74
THE EVOLUTION OF MANUFACTURE TECHNOLOGY OF PUMP BODIES TURBO-PUMP ASSEMBLY LRE
G. G. Krushenko
Institute Computational Modeling SB RAS, 50, Akademgorodok, Krasnoyarsk, 660036, Russian Federation E-mail: genry@icm.krasn.ru
he article describes the methods and tools aimed at improving the quality of body parts turbo-pump assembly (TNA) liquid-propellant rocket engine, which represent parts molded from aluminum-silicon alloy, the outer surface of which is issued by the walls of the mold, and the inner sand core. One of the problems associated with the casting of aluminum alloys, including aluminum-silicon alloys, is the porosity, the source of which is hydrogen. Pores, formed during crystallization of the metal, weaken the cross-section castings, which reduce their mechanical properties and affect the operational characteristics of TNA. Another defect casting of aluminum alloys is the presence of scattered or concentrated voids, due to the shortage of supply of liquid metal solidified alloy. The activities, aimed at prevention and elimination of the negative influence of the gas-shrinkage defects in case castings TNA, the implementation of which has improved the quality and reduced the number of defective buildings: transferred obtaining castings from casting in the sand form of the in the metallic form; on a sand cores installed "refrigerators", which increased the dissipation heat from the crystallizing metal; working surfaces of the die was covered with a special refractory coating, which ensured the reduction of dissipation and heat transfer in the direction from the lower part to the upper die; developed device for cooling the lower part of the die with compressed air, and heating the upper part of the heaters was established temperature of the die, providing the directional solidification of the casting of the case TNA, are described.
case turbo-pump assembly, casting, improving quality.
References
  1. Ivanov V. K., Kashkarov A. M., Romasenko E. N. i dr. [Turbopump units LRE design NPO Energomash]. Konversija v mashinostroenii, 2006, no. 1, P. 15 - 21 (In Russ.).
  2. Moiseev V. A., Tarasov V. A., Kolmykov V. A. i dr. Tehnologija proizvodstva zhidkostnyh raketnyh dvigatelej. [Production technology of liquid rocket engines]. Moscow, Izd-vo MGTU im. N. Je. Baumana, 2008. 381 p.
  3. Mahutov N. A., Rachuk V. S., Gadenin M. M. i dr. Prochnost' i resurs ZhRD. [Strength and resource LRE]. Moscow, Nauka Publ., 2011, 525 p.
  4. Karimi H., Nassirharand A., Mohseni M. Modeling and simulation of a class of liquid propellant engine pressurization systems. Acta Astronautica. February-March 2010. Vol. 66, Is. 34, P. 539-549.
  5. 5. Krushenko G. G., Rezanova M. V. [Improving the quality of impellers and the reduction of allowances on the cutting shaft TNA LRE]. Vestnik BGTU, 2014, no. 21, P. 119–121 (In Russ.).
  6. 6. Ammar H. R., Samuel A. M., Samuel F. H. Porosity and the fatigue behavior of hypoeutectic and hypereutectic aluminum-silicon casting alloys. International Journal of Fatigue. June 2008, Vol. 30, Is. 6,  P. 1024-1035.
  7. Chernega D. F., Bjalik O. M. Vodorod v litejnyh aljuminievyh splavah. [Hydrogen in casting aluminum alloys]. Kiev, Tekhnika Publ., 1972, 148 p.
  8. Mitrasinovic A., Hernández F. C. R., Djurdjevic M. et al. On-line prediction of the melt hydrogen and casting porosity level in 319 aluminum alloy using thermal analysis. Materials Science and Engineering: A. 25 July 2006, Vol. 428, Is. 12, P. 41-46.
  9. Irfan M. A., Schwam D., Karve A. et al. Porosity reduction and mechanical properties in die engine blocks. Materials Science and Engineering А. 15 February 2012, Vol. 535, P. 108-114.
  10. Vasilenko Z. A., Krushenko G. G., Balashov B. A. et al. [The influence of the position in the form of cast test samples for mechanical properties of aluminium alloys]. Problemy prochnosti, 1992, no. 1, P. 80–82 (In Russ).
  11. Krushenko G. G., Kuznecov A. N., Gurevich V. A. [Evaluation of the refinement ability fluxes]. Tsvetnaya metallurgiya, 1973, no. 6, P. 41–43 (In Russ.).
  12. Wang Liping et al. Influences of different degassing processes on refining effect and properties of 4004 Al alloy. CHINA FOUNDRY Research & Development. March 2013, Vol. 10, no. 2, P. 104-107.
  13. Makarov G. S. Rafinirovanie alyuminievykh splavov gazami [Refining aluminum alloys gases]. Moscow, Metallurgiya Publ., 1983. 120 p.
  14. Al'tman M. B., Glotov E. B., Zasypkin V. A. et al. Vakuumirovanie alyuminievykh splavov [The degassing of aluminum alloys]. Moscow, Metallurgiya Publ., 1977, 240 p.
  15. Krushenko G. G., Guljaev B. B., Dutov V. M. et al. [The influence of a constant electric current to the effect of the modification and properties of the alloy AL2]. Liteynoe proizvodstvo, 1974, no. 12, P. 17-18 (In Russ).
  16. Krushenko G. G., Ivanov A. A. [Vibration-impulse degassing of aluminum alloys for example alloy AL2]. Izvestiya vuzov. Tsvetnaya metallurgiya, 1992, no. 12, P. 146-148 (In Russ).

  17. Guljaev B. B. Teoriya liteynykh protsessov [The theory of foundry processes]. Leningrad, Mashinostroenie Publ., 1976, 216 p.

  18. Bayani H., Mirbagheri S. M. H., Barzegari M. et al. Simulation of unconstrained solidification of A356 aluminum alloy on distribution of micro/macro shrinkage. Journal of Materials Research and Technology. January–March 2014, Vol. 3, Is. 1, P. 55–70.

  19. Knipp E. Fehlererscheinungen an Gusstucken.  Dusseldorf: Giesserei. Verlag GmbH, 1961, 273 p.
  20. Rusakov A. A. Rentgenografiya metallov [Radiography of metals]. Moscow, Atomizdat Publ., 1977, 480 p.
  21. Krushenko G. G., Kashubskiy A. N. [The use of radiography to detect and welding defects in the superduty casting of aluminum-silicon alloys]. Remont, vosstanovlenie, modernizatsiya, 2010, no. 8, P. 47–49 (In Russ).
  22. Shevelkin V. I., Shulyakovskiy O. B., Bulatov V. P. Sposob zavarki defektov v otlivkah iz aljuminievyh splavov [Method of welding defects in the casting of aluminum alloys]. Patent RF, no. 2109611, 2002.
  23. Tian C., Law J., Touw V. D. et al. Effect of melt cleanliness on the formation of porosity defects in automotive aluminium high pressure die castings. Journal of Materials Processing Technology. 2002, Vol. 122, Is. 1, P. 82–93.
  24. Burakov S. L., Veynik A. I., Dubinin N. P. et al. Lit'e v kokil' [Gravity die casting]. Moscow, Mashinostroenie Publ., 1980. 415 p.
  25. Veynik A. I. Kokil' [Chill mould]. Minsk, Nauka i tehnika Publ., 1980, 352 p.
  26. Pisarevskiy S. S., Sosnin B. Ya., Krushenko G. G. et al. Zashchitnaya kraska dlya kokilya [Protective paint to chill mould]. Patent RF, no. 12637, 1960.
  27. Krushenko G. G. [Automatic control of cooling of the casting metal forms.]. Problemy mashinostroeniya i avtomatizatsii, 2008, no. 4, P. 105–106 (In Russ).

Krushenko Genry Gavrilovich – Dr. Sc., Professor, the chief research officer of Institute of Computer Modeling SB RAS. E-mail: genry@icm.krasn.ru