The Paton Welding Journal, 2009, №09



2009 №09 (05)

2009 №09 (07)

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TPWJ, 2009, #9, 32-37 pages  
SOME ASPECTS OF THE TECHNOLOGY OF HIGH-TEMPERATURE FLUXLESS BRAZING OF ALUMINIUM ALLOYS


Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                       0957-798X (print)
Issue                       № 9, 2009 (September)
Pages                      32-37
 
 
Authors
E.I. STORCHAJ, Yu.V. GORBATSKY and L.S. LANTUSHENKO
OJSC «Kriogenmash», Balashikha, Moscow Distr., RF
 
 
Abstract
Currently available methods of high-temperature fluxless brazing of aluminuim alloys, their typical application areas and characteristic disadvantages have been analyzed. A new highly-efficient method of brazing in argon, using porous titanium (getter), is proposed.
 
 
Keywords: fluxless brazing, vacuum brazing, brazing in argon atmosphere, aluminium alloys, oxide film, braze alloy, getter, magnesium vapours, porous titanium, surface preparation, cleaner, brazed joint strength
 
 
Received:                22.09.08
Published:               28.09.09
 
 
References
1. Lashko, N.F., Lashko, S.V. (1974) Problems of theory and technology of brazing. Saratov: SGU.
2. Kamba, K., Sugiyama, E. (1985) Sumitomo Keikinzoku Giho. Light Metal Technical Reports, 26(3), 145-156.
3. Shoer, H. (1986) Hartloeten von Konstruktionen aus Aluminiumwerkstoffen. Baender, Bleche, Rohre, 27(4), 72-74.
4. Perevezentsev, B.N., Sokolova, N.M., Telitsyna, G.A. (1996) Low vacuum brazing of aluminium. Svarochn. Proizvodstvo, 6, 2-4.
5. Perevezentsev, B.N., Sokolova, N.M., Telitsyna, G.A. (1996) Activation of surface in vacuum brazing of aluminium. Ibid., 2, 4-5.
6. Storchaj, E.I., Lantushenko, L.S. (2007) Environmentally appropriate technology of fluxless brazing of aluminium alloys. Ibid., 12, 22-24.
7. Storchaj, E.I., Gorbatsky, Yu.V., Sokolova, A.V. et al. (2004) About the possibility of regeneration of titanium getter used in argon-shielded brazing of aluminium structures. In: Proc. of Seminar on State-of-the-Art and Prospects of Development of Brazing (Moscow, 24-25 Nov. 2004). Moscow: TsRDZ, 61-66.
8. Gorbatsky, Yu.V., Kortikov, V.S., Storchaj, E.I. (2000) Thermal cycle of argon-shielded brazing process of aluminium lamellar-ribbed heat exchangers. Svarochn. Proizvodstvo, 2, 34-37.
9. Storchaj, E.I., Gorbatsky, Yu.V., Sokolova, A.V. et al. (1999) Development of methods of argon-shielded brazing of aluminium lamellar-ribbed heat exchangers. Khimich. I Neft. Mashinostroenie, 9, 6-10.
10. Storchaj, E.I., Sokolova, A.V., Roslan, I.V. et al. (1993) Application of titanium as a getter in fluxless brazing of aluminium lamellar-ribbed heat exchangers. In: Proc. of Seminar on Fabrication of Heat Exchange Apparatuses (Moscow, 12-13 April 1993). Moscow: TsRDZ, 24-31.
11. Storchaj, E.I. (1975) Application of ohmic-capacitance method for study of fluxing process. Svarochn. Proizvodstvo, 6, 45-47.
12. Lantushenko, L.S., Gorbatsky, Yu.V., Storchaj, E.I. et al. (2000) Effect of technological factors on properties of aluminium alloy joints in argon-shielded brazing of lamellarribbed heat exchangers. In: Proc. of Int. Sci.-Techn. Conf. on Brazing (Toliatti, 13-14 Sept. 2000). Toliatti: TGU, 33.
13. Baranov, N.S., Getalov, S.P., Gorbatsky, Yu.V. et al. Method of fluxless brazing of aluminium products. Pat. 2124971. Int. Cl. B 23 K 1/012. Publ. 20.01.99.
14. (1972) Aluminium alloys. Commercial, wrought, sintered and cast aluminium alloys: Refer. Book. Moscow: Metallurgiya.
15. Stepanov, V.V., Konkevich, V.Yu., Suslov, A.A. (2006) Prospects of increase in strength of brazed structures from aluminium alloys. Svarochn. Proizvodstvo, 8, 37-43.
16. Suslov, A.A. (2005) Filler metals for brazing of aluminium alloys. In: Proc. of Sci.-Techn. Conf. for 1967-2002 on Brazing: Experience, Art, Science. Vol. 1. Moscow: Alfa Dominanta.
17. Kalin, B.A., Fedotov, V.T., Sevryukov, O.N. et al. (1996) Amorphous strip braze alloys for brazing. Experience of development of fabrication technology and applications. Svarochn. Proizvodstvo, 1, 15-19.
18. Maksimovich, G.G., Fedirko, V.N., Spektor, Ya.I. et al. (1987) Heat treatment of titanium and aluminium alloys in vacuum and inert media. Kiev: Naukova Dumka.
19. Filatov, Yu.A., Elagin, V.I., Zakharov, V.V. (2005) Aluminium alloys doped with scandium. Metallurgiya Mashinostroeniya, 4, 25-30.
20. Storchaj, E.I., Gorbatsky, Yu.V., Lantushenko, L.S. et al. (2001) New environmentally appropriate technology for preparation of aluminium alloys to brazing. Svarochn. Proizvodstvo, 1, 37-41.
21. Gorbatsky, Yu.V., Storchaj, E.I. (1999) New environmentally appropriate technology for fabrication of lamellar-ribbed heat exchangers. Khimich. i Neft. Mashinostroenie, 9, 10-11.

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Suggested Citation

E.I. STORCHAJ, Yu.V. GORBATSKY and L.S. LANTUSHENKO (2009) SOME ASPECTS OF THE TECHNOLOGY OF HIGH-TEMPERATURE FLUXLESS BRAZING OF ALUMINIUM ALLOYS. The Paton Welding J., 09, 32-37.

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